mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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4356d4262e
Don't reduce sample index if it is already at 0. Assigning -1 to a guint32 variable causes unexpected behavior. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/5751>
15762 lines
518 KiB
C
15762 lines
518 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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* Copyright (C) <2003> David A. Schleef <ds@schleef.org>
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* Copyright (C) <2006> Wim Taymans <wim@fluendo.com>
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* Copyright (C) <2007> Julien Moutte <julien@fluendo.com>
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* Copyright (C) <2009> Tim-Philipp Müller <tim centricular net>
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* Copyright (C) <2009> STEricsson <benjamin.gaignard@stericsson.com>
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* Copyright (C) <2013> Sreerenj Balachandran <sreerenj.balachandran@intel.com>
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* Copyright (C) <2013> Intel Corporation
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* Copyright (C) <2014> Centricular Ltd
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* Copyright (C) <2015> YouView TV Ltd.
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* Copyright (C) <2016> British Broadcasting Corporation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:element-qtdemux
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* @title: qtdemux
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*
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* Demuxes a .mov file into raw or compressed audio and/or video streams.
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*
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* This element supports both push and pull-based scheduling, depending on the
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* capabilities of the upstream elements.
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*
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* ## Example launch line
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* |[
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* gst-launch-1.0 filesrc location=test.mov ! qtdemux name=demux demux.audio_0 ! queue ! decodebin ! audioconvert ! audioresample ! autoaudiosink demux.video_0 ! queue ! decodebin ! videoconvert ! videoscale ! autovideosink
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* ]| Play (parse and decode) a .mov file and try to output it to
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* an automatically detected soundcard and videosink. If the MOV file contains
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* compressed audio or video data, this will only work if you have the
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* right decoder elements/plugins installed.
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <glib/gi18n-lib.h>
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#include <glib/gprintf.h>
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#include <gst/base/base.h>
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#include <gst/tag/tag.h>
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#include <gst/audio/audio.h>
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#include <gst/riff/riff.h>
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#include <gst/pbutils/pbutils.h>
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#include "gstisomp4elements.h"
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#include "qtatomparser.h"
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#include "qtdemux_types.h"
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#include "qtdemux_dump.h"
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#include "fourcc.h"
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#include "descriptors.h"
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#include "qtdemux_lang.h"
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#include "qtdemux.h"
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#include "qtpalette.h"
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#include "qtdemux_tags.h"
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#include "qtdemux_tree.h"
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#include "qtdemux-webvtt.h"
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <gst/math-compat.h>
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#ifdef HAVE_ZLIB
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# include <zlib.h>
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#endif
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/* max. size considered 'sane' for non-mdat atoms */
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#define QTDEMUX_MAX_ATOM_SIZE (32*1024*1024)
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/* if the sample index is larger than this, something is likely wrong */
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#define QTDEMUX_MAX_SAMPLE_INDEX_SIZE (200*1024*1024)
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/* For converting qt creation times to unix epoch times */
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#define QTDEMUX_SECONDS_PER_DAY (60 * 60 * 24)
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#define QTDEMUX_LEAP_YEARS_FROM_1904_TO_1970 17
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#define QTDEMUX_SECONDS_FROM_1904_TO_1970 (((1970 - 1904) * (guint64) 365 + \
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QTDEMUX_LEAP_YEARS_FROM_1904_TO_1970) * QTDEMUX_SECONDS_PER_DAY)
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#define QTDEMUX_TREE_NODE_FOURCC(n) (QT_FOURCC(((guint8 *) (n)->data) + 4))
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#define STREAM_IS_EOS(s) ((s)->time_position == GST_CLOCK_TIME_NONE)
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#define ABSDIFF(x, y) ( (x) > (y) ? ((x) - (y)) : ((y) - (x)) )
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#define QTDEMUX_STREAM(s) ((QtDemuxStream *)(s))
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#define QTDEMUX_N_STREAMS(demux) ((demux)->active_streams->len)
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#define QTDEMUX_NTH_STREAM(demux,idx) \
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QTDEMUX_STREAM(g_ptr_array_index((demux)->active_streams,idx))
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#define QTDEMUX_NTH_OLD_STREAM(demux,idx) \
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QTDEMUX_STREAM(g_ptr_array_index((demux)->old_streams,idx))
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#define CUR_STREAM(s) (&((s)->stsd_entries[(s)->cur_stsd_entry_index]))
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GST_DEBUG_CATEGORY (qtdemux_debug);
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#define GST_CAT_DEFAULT qtdemux_debug
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typedef struct _QtDemuxCencSampleSetInfo QtDemuxCencSampleSetInfo;
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typedef struct _QtDemuxAavdEncryptionInfo QtDemuxAavdEncryptionInfo;
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/* Macros for converting to/from timescale */
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#define QTSTREAMTIME_TO_GSTTIME(stream, value) (gst_util_uint64_scale((value), GST_SECOND, (stream)->timescale))
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#define GSTTIME_TO_QTSTREAMTIME(stream, value) (gst_util_uint64_scale((value), (stream)->timescale, GST_SECOND))
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#define QTTIME_TO_GSTTIME(qtdemux, value) (gst_util_uint64_scale((value), GST_SECOND, (qtdemux)->timescale))
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#define GSTTIME_TO_QTTIME(qtdemux, value) (gst_util_uint64_scale((value), (qtdemux)->timescale, GST_SECOND))
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/* timestamp is the DTS */
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#define QTSAMPLE_DTS(stream,sample) (QTSTREAMTIME_TO_GSTTIME((stream), (sample)->timestamp))
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/* timestamp + offset + cslg_shift is the outgoing PTS */
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#define QTSAMPLE_PTS(stream,sample) (QTSTREAMTIME_TO_GSTTIME((stream), (sample)->timestamp + (stream)->cslg_shift + (sample)->pts_offset))
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/* timestamp + offset is the PTS used for internal seek calculations */
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#define QTSAMPLE_PTS_NO_CSLG(stream,sample) (QTSTREAMTIME_TO_GSTTIME((stream), (sample)->timestamp + (sample)->pts_offset))
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/* timestamp + duration - dts is the duration */
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#define QTSAMPLE_DUR_DTS(stream, sample, dts) (QTSTREAMTIME_TO_GSTTIME ((stream), (sample)->timestamp + (sample)->duration) - (dts))
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#define QTSAMPLE_KEYFRAME(stream,sample) ((stream)->all_keyframe || (sample)->keyframe)
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#define QTDEMUX_EXPOSE_GET_LOCK(demux) (&((demux)->expose_lock))
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#define QTDEMUX_EXPOSE_LOCK(demux) G_STMT_START { \
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GST_TRACE("Locking from thread %p", g_thread_self()); \
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g_mutex_lock (QTDEMUX_EXPOSE_GET_LOCK (demux)); \
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GST_TRACE("Locked from thread %p", g_thread_self()); \
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} G_STMT_END
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#define QTDEMUX_EXPOSE_UNLOCK(demux) G_STMT_START { \
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GST_TRACE("Unlocking from thread %p", g_thread_self()); \
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g_mutex_unlock (QTDEMUX_EXPOSE_GET_LOCK (demux)); \
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} G_STMT_END
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/*
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* Quicktime has tracks and segments. A track is a continuous piece of
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* multimedia content. The track is not always played from start to finish but
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* instead, pieces of the track are 'cut out' and played in sequence. This is
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* what the segments do.
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*
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* Inside the track we have keyframes (K) and delta frames. The track has its
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* own timing, which starts from 0 and extends to end. The position in the track
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* is called the media_time.
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*
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* The segments now describe the pieces that should be played from this track
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* and are basically tuples of media_time/duration/rate entries. We can have
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* multiple segments and they are all played after one another. An example:
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*
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* segment 1: media_time: 1 second, duration: 1 second, rate 1
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* segment 2: media_time: 3 second, duration: 2 second, rate 2
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*
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* To correctly play back this track, one must play: 1 second of media starting
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* from media_time 1 followed by 2 seconds of media starting from media_time 3
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* at a rate of 2.
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*
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* Each of the segments will be played at a specific time, the first segment at
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* time 0, the second one after the duration of the first one, etc.. Note that
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* the time in resulting playback is not identical to the media_time of the
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* track anymore.
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*
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* Visually, assuming the track has 4 second of media_time:
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*
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* (a) (b) (c) (d)
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* .-----------------------------------------------------------.
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* track: | K.....K.........K........K.......K.......K...........K... |
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* '-----------------------------------------------------------'
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* 0 1 2 3 4
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* .------------^ ^ .----------^ ^
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* / .-------------' / .------------------'
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* / / .-----' /
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* .--------------. .--------------.
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* | segment 1 | | segment 2 |
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* '--------------' '--------------'
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*
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* The challenge here is to cut out the right pieces of the track for each of
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* the playback segments. This fortunately can easily be done with the SEGMENT
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* events of GStreamer.
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*
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* For playback of segment 1, we need to provide the decoder with the keyframe
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* (a), in the above figure, but we must instruct it only to output the decoded
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* data between second 1 and 2. We do this with a SEGMENT event for 1 to 2, time
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* position set to the time of the segment: 0.
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*
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* We then proceed to push data from keyframe (a) to frame (b). The decoder
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* decodes but clips all before media_time 1.
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*
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* After finishing a segment, we push out a new SEGMENT event with the clipping
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* boundaries of the new data.
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*
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* This is a good usecase for the GStreamer accumulated SEGMENT events.
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*/
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struct _QtDemuxSegment
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{
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/* global time and duration, all gst time */
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GstClockTime time;
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GstClockTime stop_time;
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GstClockTime duration;
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/* media time of trak, all gst time */
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GstClockTime media_start;
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GstClockTime media_stop;
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gdouble rate;
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/* Media start time in trak timescale units */
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guint32 trak_media_start;
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};
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#define QTSEGMENT_IS_EMPTY(s) ((s)->media_start == GST_CLOCK_TIME_NONE)
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/* Used with fragmented MP4 files (mfra atom) */
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struct _QtDemuxRandomAccessEntry
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{
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GstClockTime ts;
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guint64 moof_offset;
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};
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/* Contains properties and cryptographic info for a set of samples from a
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* track protected using Common Encryption (cenc) */
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struct _QtDemuxCencSampleSetInfo
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{
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GstStructure *default_properties;
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/* @crypto_info holds one GstStructure per sample */
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GPtrArray *crypto_info;
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};
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struct _QtDemuxAavdEncryptionInfo
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{
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GstStructure *default_properties;
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};
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static const gchar *
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qt_demux_state_string (enum QtDemuxState state)
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{
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switch (state) {
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case QTDEMUX_STATE_INITIAL:
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return "<INITIAL>";
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case QTDEMUX_STATE_HEADER:
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return "<HEADER>";
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case QTDEMUX_STATE_MOVIE:
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return "<MOVIE>";
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case QTDEMUX_STATE_BUFFER_MDAT:
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return "<BUFFER_MDAT>";
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default:
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return "<UNKNOWN>";
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}
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}
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static GstFlowReturn qtdemux_add_fragmented_samples (GstQTDemux * qtdemux);
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static void gst_qtdemux_check_send_pending_segment (GstQTDemux * demux);
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static GstStaticPadTemplate gst_qtdemux_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("video/quicktime; video/mj2; audio/x-m4a; "
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"application/x-3gp")
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);
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static GstStaticPadTemplate gst_qtdemux_videosrc_template =
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GST_STATIC_PAD_TEMPLATE ("video_%u",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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static GstStaticPadTemplate gst_qtdemux_audiosrc_template =
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GST_STATIC_PAD_TEMPLATE ("audio_%u",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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static GstStaticPadTemplate gst_qtdemux_subsrc_template =
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GST_STATIC_PAD_TEMPLATE ("subtitle_%u",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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static GstStaticPadTemplate gst_qtdemux_metasrc_template =
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GST_STATIC_PAD_TEMPLATE ("meta_%u",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS_ANY);
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#define gst_qtdemux_parent_class parent_class
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G_DEFINE_TYPE (GstQTDemux, gst_qtdemux, GST_TYPE_ELEMENT);
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GST_ELEMENT_REGISTER_DEFINE_WITH_CODE (qtdemux, "qtdemux",
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GST_RANK_PRIMARY, GST_TYPE_QTDEMUX, isomp4_element_init (plugin));
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static void gst_qtdemux_dispose (GObject * object);
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static void gst_qtdemux_finalize (GObject * object);
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static guint32
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gst_qtdemux_find_index_linear (GstQTDemux * qtdemux, QtDemuxStream * str,
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GstClockTime media_time);
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static guint32
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gst_qtdemux_find_index_for_given_media_offset_linear (GstQTDemux * qtdemux,
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QtDemuxStream * str, gint64 media_offset);
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#if 0
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static void gst_qtdemux_set_index (GstElement * element, GstIndex * index);
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static GstIndex *gst_qtdemux_get_index (GstElement * element);
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#endif
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static GstStateChangeReturn gst_qtdemux_change_state (GstElement * element,
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GstStateChange transition);
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static void gst_qtdemux_set_context (GstElement * element,
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GstContext * context);
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static gboolean qtdemux_sink_activate (GstPad * sinkpad, GstObject * parent);
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static gboolean qtdemux_sink_activate_mode (GstPad * sinkpad,
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GstObject * parent, GstPadMode mode, gboolean active);
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static void gst_qtdemux_loop (GstPad * pad);
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static GstFlowReturn gst_qtdemux_chain (GstPad * sinkpad, GstObject * parent,
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GstBuffer * inbuf);
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static gboolean gst_qtdemux_handle_sink_event (GstPad * pad, GstObject * parent,
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GstEvent * event);
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static gboolean gst_qtdemux_handle_sink_query (GstPad * pad, GstObject * parent,
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GstQuery * query);
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static gboolean gst_qtdemux_setcaps (GstQTDemux * qtdemux, GstCaps * caps);
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static gboolean gst_qtdemux_configure_stream (GstQTDemux * qtdemux,
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QtDemuxStream * stream);
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static void gst_qtdemux_stream_check_and_change_stsd_index (GstQTDemux * demux,
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QtDemuxStream * stream);
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static GstFlowReturn gst_qtdemux_process_adapter (GstQTDemux * demux,
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gboolean force);
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static void gst_qtdemux_check_seekability (GstQTDemux * demux);
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static gboolean qtdemux_parse_moov (GstQTDemux * qtdemux,
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const guint8 * buffer, guint length);
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static gboolean qtdemux_parse_node (GstQTDemux * qtdemux, GNode * node,
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const guint8 * buffer, guint length);
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static gboolean qtdemux_parse_tree (GstQTDemux * qtdemux);
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static void gst_qtdemux_handle_esds (GstQTDemux * qtdemux,
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QtDemuxStream * stream, QtDemuxStreamStsdEntry * entry, GNode * esds,
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GstTagList * list);
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static GstCaps *qtdemux_video_caps (GstQTDemux * qtdemux,
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QtDemuxStream * stream, QtDemuxStreamStsdEntry * entry, guint32 fourcc,
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const guint8 * stsd_entry_data, gchar ** codec_name);
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static GstCaps *qtdemux_audio_caps (GstQTDemux * qtdemux,
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QtDemuxStream * stream, QtDemuxStreamStsdEntry * entry, guint32 fourcc,
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const guint8 * data, int len, gchar ** codec_name);
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static GstCaps *qtdemux_sub_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
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QtDemuxStreamStsdEntry * entry, guint32 fourcc, const guint8 * data,
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gchar ** codec_name);
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static GstCaps *qtdemux_meta_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
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QtDemuxStreamStsdEntry * entry, guint32 fourcc, const guint8 * data,
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gchar ** codec_name);
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static GstCaps *qtdemux_generic_caps (GstQTDemux * qtdemux,
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QtDemuxStream * stream, QtDemuxStreamStsdEntry * entry, guint32 fourcc,
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const guint8 * stsd_entry_data, gchar ** codec_name);
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static gboolean qtdemux_parse_samples (GstQTDemux * qtdemux,
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QtDemuxStream * stream, guint32 n);
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static GstFlowReturn qtdemux_expose_streams (GstQTDemux * qtdemux);
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static QtDemuxStream *gst_qtdemux_stream_ref (QtDemuxStream * stream);
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static void gst_qtdemux_stream_unref (QtDemuxStream * stream);
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static void gst_qtdemux_stream_clear (QtDemuxStream * stream);
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static GstFlowReturn qtdemux_prepare_streams (GstQTDemux * qtdemux);
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static void qtdemux_do_allocation (QtDemuxStream * stream,
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GstQTDemux * qtdemux);
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static gboolean gst_qtdemux_activate_segment (GstQTDemux * qtdemux,
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QtDemuxStream * stream, guint32 seg_idx, GstClockTime offset);
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static gboolean gst_qtdemux_stream_update_segment (GstQTDemux * qtdemux,
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QtDemuxStream * stream, gint seg_idx, GstClockTime offset,
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GstClockTime * _start, GstClockTime * _stop);
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static void gst_qtdemux_send_gap_for_segment (GstQTDemux * demux,
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QtDemuxStream * stream, gint segment_index, GstClockTime pos);
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static gboolean qtdemux_pull_mfro_mfra (GstQTDemux * qtdemux);
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static void check_update_duration (GstQTDemux * qtdemux, GstClockTime duration);
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static gchar *qtdemux_uuid_bytes_to_string (gconstpointer uuid_bytes);
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static GstStructure *qtdemux_get_cenc_sample_properties (GstQTDemux * qtdemux,
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QtDemuxStream * stream, guint sample_index);
|
|
static void gst_qtdemux_append_protection_system_id (GstQTDemux * qtdemux,
|
|
const gchar * id);
|
|
static void qtdemux_gst_structure_free (GstStructure * gststructure);
|
|
static void gst_qtdemux_reset (GstQTDemux * qtdemux, gboolean hard);
|
|
static void qtdemux_clear_protection_events_on_all_streams (GstQTDemux *
|
|
qtdemux);
|
|
|
|
static void
|
|
gst_qtdemux_class_init (GstQTDemuxClass * klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
|
|
gobject_class = (GObjectClass *) klass;
|
|
gstelement_class = (GstElementClass *) klass;
|
|
|
|
parent_class = g_type_class_peek_parent (klass);
|
|
|
|
gobject_class->dispose = gst_qtdemux_dispose;
|
|
gobject_class->finalize = gst_qtdemux_finalize;
|
|
|
|
gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_qtdemux_change_state);
|
|
#if 0
|
|
gstelement_class->set_index = GST_DEBUG_FUNCPTR (gst_qtdemux_set_index);
|
|
gstelement_class->get_index = GST_DEBUG_FUNCPTR (gst_qtdemux_get_index);
|
|
#endif
|
|
gstelement_class->set_context = GST_DEBUG_FUNCPTR (gst_qtdemux_set_context);
|
|
|
|
gst_tag_register_musicbrainz_tags ();
|
|
|
|
gst_element_class_add_static_pad_template (gstelement_class,
|
|
&gst_qtdemux_sink_template);
|
|
gst_element_class_add_static_pad_template (gstelement_class,
|
|
&gst_qtdemux_videosrc_template);
|
|
gst_element_class_add_static_pad_template (gstelement_class,
|
|
&gst_qtdemux_audiosrc_template);
|
|
gst_element_class_add_static_pad_template (gstelement_class,
|
|
&gst_qtdemux_subsrc_template);
|
|
gst_element_class_set_static_metadata (gstelement_class, "QuickTime demuxer",
|
|
"Codec/Demuxer",
|
|
"Demultiplex a QuickTime file into audio and video streams",
|
|
"David Schleef <ds@schleef.org>, Wim Taymans <wim@fluendo.com>");
|
|
|
|
GST_DEBUG_CATEGORY_INIT (qtdemux_debug, "qtdemux", 0, "qtdemux plugin");
|
|
gst_riff_init ();
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_init (GstQTDemux * qtdemux)
|
|
{
|
|
qtdemux->sinkpad =
|
|
gst_pad_new_from_static_template (&gst_qtdemux_sink_template, "sink");
|
|
gst_pad_set_activate_function (qtdemux->sinkpad, qtdemux_sink_activate);
|
|
gst_pad_set_activatemode_function (qtdemux->sinkpad,
|
|
qtdemux_sink_activate_mode);
|
|
gst_pad_set_chain_function (qtdemux->sinkpad, gst_qtdemux_chain);
|
|
gst_pad_set_event_function (qtdemux->sinkpad, gst_qtdemux_handle_sink_event);
|
|
gst_pad_set_query_function (qtdemux->sinkpad, gst_qtdemux_handle_sink_query);
|
|
gst_element_add_pad (GST_ELEMENT_CAST (qtdemux), qtdemux->sinkpad);
|
|
|
|
qtdemux->adapter = gst_adapter_new ();
|
|
g_queue_init (&qtdemux->protection_event_queue);
|
|
qtdemux->flowcombiner = gst_flow_combiner_new ();
|
|
g_mutex_init (&qtdemux->expose_lock);
|
|
|
|
qtdemux->active_streams = g_ptr_array_new_with_free_func
|
|
((GDestroyNotify) gst_qtdemux_stream_unref);
|
|
qtdemux->old_streams = g_ptr_array_new_with_free_func
|
|
((GDestroyNotify) gst_qtdemux_stream_unref);
|
|
|
|
GST_OBJECT_FLAG_SET (qtdemux, GST_ELEMENT_FLAG_INDEXABLE);
|
|
|
|
gst_qtdemux_reset (qtdemux, TRUE);
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_finalize (GObject * object)
|
|
{
|
|
GstQTDemux *qtdemux = GST_QTDEMUX (object);
|
|
|
|
g_free (qtdemux->redirect_location);
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_dispose (GObject * object)
|
|
{
|
|
GstQTDemux *qtdemux = GST_QTDEMUX (object);
|
|
|
|
if (qtdemux->adapter) {
|
|
g_object_unref (G_OBJECT (qtdemux->adapter));
|
|
qtdemux->adapter = NULL;
|
|
}
|
|
gst_tag_list_unref (qtdemux->tag_list);
|
|
gst_flow_combiner_free (qtdemux->flowcombiner);
|
|
g_queue_clear_full (&qtdemux->protection_event_queue,
|
|
(GDestroyNotify) gst_event_unref);
|
|
|
|
g_free (qtdemux->cenc_aux_info_sizes);
|
|
qtdemux->cenc_aux_info_sizes = NULL;
|
|
g_mutex_clear (&qtdemux->expose_lock);
|
|
|
|
g_ptr_array_free (qtdemux->active_streams, TRUE);
|
|
g_ptr_array_free (qtdemux->old_streams, TRUE);
|
|
|
|
G_OBJECT_CLASS (parent_class)->dispose (object);
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_post_no_playable_stream_error (GstQTDemux * qtdemux)
|
|
{
|
|
if (qtdemux->redirect_location) {
|
|
GST_ELEMENT_ERROR_WITH_DETAILS (qtdemux, STREAM, DEMUX,
|
|
(_("This file contains no playable streams.")),
|
|
("no known streams found, a redirect message has been posted"),
|
|
("redirect-location", G_TYPE_STRING, qtdemux->redirect_location, NULL));
|
|
} else {
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("This file contains no playable streams.")),
|
|
("no known streams found"));
|
|
}
|
|
}
|
|
|
|
static GstBuffer *
|
|
_gst_buffer_new_wrapped (gpointer mem, gsize size, GFreeFunc free_func)
|
|
{
|
|
return gst_buffer_new_wrapped_full (free_func ? 0 : GST_MEMORY_FLAG_READONLY,
|
|
mem, size, 0, size, mem, free_func);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_qtdemux_pull_atom (GstQTDemux * qtdemux, guint64 offset, guint64 size,
|
|
GstBuffer ** buf)
|
|
{
|
|
GstFlowReturn flow;
|
|
GstMapInfo map;
|
|
gsize bsize;
|
|
|
|
if (G_UNLIKELY (size == 0)) {
|
|
GstFlowReturn ret;
|
|
GstBuffer *tmp = NULL;
|
|
|
|
ret = gst_qtdemux_pull_atom (qtdemux, offset, sizeof (guint32), &tmp);
|
|
if (ret != GST_FLOW_OK)
|
|
return ret;
|
|
|
|
gst_buffer_map (tmp, &map, GST_MAP_READ);
|
|
size = QT_UINT32 (map.data);
|
|
GST_DEBUG_OBJECT (qtdemux, "size 0x%08" G_GINT64_MODIFIER "x", size);
|
|
|
|
gst_buffer_unmap (tmp, &map);
|
|
gst_buffer_unref (tmp);
|
|
}
|
|
|
|
/* Sanity check: catch bogus sizes (fuzzed/broken files) */
|
|
if (G_UNLIKELY (size > QTDEMUX_MAX_ATOM_SIZE)) {
|
|
if (qtdemux->state != QTDEMUX_STATE_MOVIE && qtdemux->got_moov) {
|
|
/* we're pulling header but already got most interesting bits,
|
|
* so never mind the rest (e.g. tags) (that much) */
|
|
GST_WARNING_OBJECT (qtdemux, "atom has bogus size %" G_GUINT64_FORMAT,
|
|
size);
|
|
return GST_FLOW_EOS;
|
|
} else {
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("This file is invalid and cannot be played.")),
|
|
("atom has bogus size %" G_GUINT64_FORMAT, size));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
flow = gst_pad_pull_range (qtdemux->sinkpad, offset, size, buf);
|
|
|
|
if (G_UNLIKELY (flow != GST_FLOW_OK))
|
|
return flow;
|
|
|
|
bsize = gst_buffer_get_size (*buf);
|
|
/* Catch short reads - we don't want any partial atoms */
|
|
if (G_UNLIKELY (bsize < size)) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"short read: %" G_GSIZE_FORMAT " < %" G_GUINT64_FORMAT, bsize, size);
|
|
gst_buffer_unref (*buf);
|
|
*buf = NULL;
|
|
return GST_FLOW_EOS;
|
|
}
|
|
|
|
return flow;
|
|
}
|
|
|
|
#if 1
|
|
static gboolean
|
|
gst_qtdemux_src_convert (GstQTDemux * qtdemux, GstPad * pad,
|
|
GstFormat src_format, gint64 src_value, GstFormat dest_format,
|
|
gint64 * dest_value)
|
|
{
|
|
gboolean res = TRUE;
|
|
QtDemuxStream *stream = gst_pad_get_element_private (pad);
|
|
gint32 index;
|
|
|
|
if (stream->subtype != FOURCC_vide) {
|
|
res = FALSE;
|
|
goto done;
|
|
}
|
|
|
|
switch (src_format) {
|
|
case GST_FORMAT_TIME:
|
|
switch (dest_format) {
|
|
case GST_FORMAT_BYTES:{
|
|
index = gst_qtdemux_find_index_linear (qtdemux, stream, src_value);
|
|
if (-1 == index) {
|
|
res = FALSE;
|
|
goto done;
|
|
}
|
|
|
|
*dest_value = stream->samples[index].offset;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Format Conversion Time->Offset :%"
|
|
GST_TIME_FORMAT "->%" G_GUINT64_FORMAT,
|
|
GST_TIME_ARGS (src_value), *dest_value);
|
|
break;
|
|
}
|
|
default:
|
|
res = FALSE;
|
|
break;
|
|
}
|
|
break;
|
|
case GST_FORMAT_BYTES:
|
|
switch (dest_format) {
|
|
case GST_FORMAT_TIME:{
|
|
index =
|
|
gst_qtdemux_find_index_for_given_media_offset_linear (qtdemux,
|
|
stream, src_value);
|
|
|
|
if (-1 == index) {
|
|
res = FALSE;
|
|
goto done;
|
|
}
|
|
|
|
*dest_value =
|
|
QTSTREAMTIME_TO_GSTTIME (stream,
|
|
stream->samples[index].timestamp);
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Format Conversion Offset->Time :%" G_GUINT64_FORMAT "->%"
|
|
GST_TIME_FORMAT, src_value, GST_TIME_ARGS (*dest_value));
|
|
break;
|
|
}
|
|
default:
|
|
res = FALSE;
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
res = FALSE;
|
|
break;
|
|
}
|
|
|
|
done:
|
|
return res;
|
|
}
|
|
#endif
|
|
|
|
static gboolean
|
|
gst_qtdemux_get_duration (GstQTDemux * qtdemux, GstClockTime * duration)
|
|
{
|
|
gboolean res = FALSE;
|
|
|
|
*duration = GST_CLOCK_TIME_NONE;
|
|
|
|
if (qtdemux->duration != 0 &&
|
|
qtdemux->duration != G_MAXINT64 && qtdemux->timescale != 0) {
|
|
*duration = QTTIME_TO_GSTTIME (qtdemux, qtdemux->duration);
|
|
res = TRUE;
|
|
} else {
|
|
*duration = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_handle_src_query (GstPad * pad, GstObject * parent,
|
|
GstQuery * query)
|
|
{
|
|
gboolean res = FALSE;
|
|
GstQTDemux *qtdemux = GST_QTDEMUX (parent);
|
|
|
|
GST_LOG_OBJECT (pad, "%s query", GST_QUERY_TYPE_NAME (query));
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_POSITION:{
|
|
GstFormat fmt;
|
|
|
|
gst_query_parse_position (query, &fmt, NULL);
|
|
if (fmt == GST_FORMAT_TIME
|
|
&& GST_CLOCK_TIME_IS_VALID (qtdemux->segment.position)) {
|
|
gst_query_set_position (query, GST_FORMAT_TIME,
|
|
qtdemux->segment.position);
|
|
res = TRUE;
|
|
}
|
|
}
|
|
break;
|
|
case GST_QUERY_DURATION:{
|
|
GstFormat fmt;
|
|
|
|
gst_query_parse_duration (query, &fmt, NULL);
|
|
if (fmt == GST_FORMAT_TIME) {
|
|
/* First try to query upstream */
|
|
res = gst_pad_query_default (pad, parent, query);
|
|
if (!res) {
|
|
GstClockTime duration;
|
|
if (gst_qtdemux_get_duration (qtdemux, &duration) && duration > 0) {
|
|
gst_query_set_duration (query, GST_FORMAT_TIME, duration);
|
|
res = TRUE;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case GST_QUERY_CONVERT:{
|
|
GstFormat src_fmt, dest_fmt;
|
|
gint64 src_value, dest_value = 0;
|
|
|
|
gst_query_parse_convert (query, &src_fmt, &src_value, &dest_fmt, NULL);
|
|
|
|
res = gst_qtdemux_src_convert (qtdemux, pad,
|
|
src_fmt, src_value, dest_fmt, &dest_value);
|
|
if (res)
|
|
gst_query_set_convert (query, src_fmt, src_value, dest_fmt, dest_value);
|
|
|
|
break;
|
|
}
|
|
case GST_QUERY_FORMATS:
|
|
gst_query_set_formats (query, 2, GST_FORMAT_TIME, GST_FORMAT_BYTES);
|
|
res = TRUE;
|
|
break;
|
|
case GST_QUERY_SEEKING:{
|
|
GstFormat fmt;
|
|
gboolean seekable;
|
|
|
|
gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
|
|
|
|
if (fmt == GST_FORMAT_BYTES) {
|
|
/* We always refuse BYTES seeks from downstream */
|
|
break;
|
|
}
|
|
|
|
/* try upstream first */
|
|
res = gst_pad_query_default (pad, parent, query);
|
|
|
|
if (!res) {
|
|
gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
|
|
if (fmt == GST_FORMAT_TIME) {
|
|
GstClockTime duration;
|
|
|
|
gst_qtdemux_get_duration (qtdemux, &duration);
|
|
seekable = TRUE;
|
|
if (!qtdemux->pullbased) {
|
|
GstQuery *q;
|
|
|
|
/* we might be able with help from upstream */
|
|
seekable = FALSE;
|
|
q = gst_query_new_seeking (GST_FORMAT_BYTES);
|
|
if (gst_pad_peer_query (qtdemux->sinkpad, q)) {
|
|
gst_query_parse_seeking (q, &fmt, &seekable, NULL, NULL);
|
|
GST_LOG_OBJECT (qtdemux, "upstream BYTE seekable %d", seekable);
|
|
}
|
|
gst_query_unref (q);
|
|
}
|
|
gst_query_set_seeking (query, GST_FORMAT_TIME, seekable, 0, duration);
|
|
res = TRUE;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case GST_QUERY_SEGMENT:
|
|
{
|
|
GstFormat format;
|
|
gint64 start, stop;
|
|
|
|
format = qtdemux->segment.format;
|
|
|
|
start =
|
|
gst_segment_to_stream_time (&qtdemux->segment, format,
|
|
qtdemux->segment.start);
|
|
if ((stop = qtdemux->segment.stop) == -1)
|
|
stop = qtdemux->segment.duration;
|
|
else
|
|
stop = gst_segment_to_stream_time (&qtdemux->segment, format, stop);
|
|
|
|
gst_query_set_segment (query, qtdemux->segment.rate, format, start, stop);
|
|
res = TRUE;
|
|
break;
|
|
}
|
|
default:
|
|
res = gst_pad_query_default (pad, parent, query);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_push_tags (GstQTDemux * qtdemux, QtDemuxStream * stream)
|
|
{
|
|
if (G_LIKELY (stream->pad)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Checking pad %s:%s for tags",
|
|
GST_DEBUG_PAD_NAME (stream->pad));
|
|
|
|
if (!gst_tag_list_is_empty (stream->stream_tags)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Sending tags %" GST_PTR_FORMAT,
|
|
stream->stream_tags);
|
|
gst_pad_push_event (stream->pad,
|
|
gst_event_new_tag (gst_tag_list_ref (stream->stream_tags)));
|
|
}
|
|
|
|
if (G_UNLIKELY (stream->send_global_tags)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Sending global tags %" GST_PTR_FORMAT,
|
|
qtdemux->tag_list);
|
|
gst_pad_push_event (stream->pad,
|
|
gst_event_new_tag (gst_tag_list_ref (qtdemux->tag_list)));
|
|
stream->send_global_tags = FALSE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* push event on all source pads; takes ownership of the event */
|
|
static void
|
|
gst_qtdemux_push_event (GstQTDemux * qtdemux, GstEvent * event)
|
|
{
|
|
gboolean has_valid_stream = FALSE;
|
|
GstEventType etype = GST_EVENT_TYPE (event);
|
|
guint i;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "pushing %s event on all source pads",
|
|
GST_EVENT_TYPE_NAME (event));
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
GstPad *pad;
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
GST_DEBUG_OBJECT (qtdemux, "pushing on track-id %u", stream->track_id);
|
|
|
|
if ((pad = stream->pad)) {
|
|
has_valid_stream = TRUE;
|
|
|
|
if (etype == GST_EVENT_EOS) {
|
|
/* let's not send twice */
|
|
if (stream->sent_eos)
|
|
continue;
|
|
stream->sent_eos = TRUE;
|
|
}
|
|
|
|
gst_pad_push_event (pad, gst_event_ref (event));
|
|
}
|
|
}
|
|
|
|
gst_event_unref (event);
|
|
|
|
/* if it is EOS and there are no pads, post an error */
|
|
if (!has_valid_stream && etype == GST_EVENT_EOS) {
|
|
gst_qtdemux_post_no_playable_stream_error (qtdemux);
|
|
}
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
guint64 media_time;
|
|
} FindData;
|
|
|
|
static gint
|
|
find_func (QtDemuxSample * s1, gint64 * media_time, gpointer user_data)
|
|
{
|
|
if ((gint64) s1->timestamp > *media_time)
|
|
return 1;
|
|
if ((gint64) s1->timestamp == *media_time)
|
|
return 0;
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* find the index of the sample that includes the data for @media_time using a
|
|
* binary search. Only to be called in optimized cases of linear search below.
|
|
*
|
|
* Returns the index of the sample with the corresponding *DTS*.
|
|
*/
|
|
static guint32
|
|
gst_qtdemux_find_index (GstQTDemux * qtdemux, QtDemuxStream * str,
|
|
guint64 media_time)
|
|
{
|
|
QtDemuxSample *result;
|
|
guint32 index;
|
|
|
|
/* convert media_time to mov format */
|
|
media_time =
|
|
gst_util_uint64_scale_ceil (media_time, str->timescale, GST_SECOND);
|
|
|
|
result = gst_util_array_binary_search (str->samples, str->stbl_index + 1,
|
|
sizeof (QtDemuxSample), (GCompareDataFunc) find_func,
|
|
GST_SEARCH_MODE_BEFORE, &media_time, NULL);
|
|
|
|
if (G_LIKELY (result))
|
|
index = result - str->samples;
|
|
else
|
|
index = 0;
|
|
|
|
return index;
|
|
}
|
|
|
|
|
|
|
|
/* find the index of the sample that includes the data for @media_offset using a
|
|
* linear search
|
|
*
|
|
* Returns the index of the sample.
|
|
*/
|
|
static guint32
|
|
gst_qtdemux_find_index_for_given_media_offset_linear (GstQTDemux * qtdemux,
|
|
QtDemuxStream * str, gint64 media_offset)
|
|
{
|
|
QtDemuxSample *result = str->samples;
|
|
guint32 index = 0;
|
|
|
|
if (result == NULL || str->n_samples == 0)
|
|
return -1;
|
|
|
|
if (media_offset == result->offset)
|
|
return index;
|
|
|
|
result++;
|
|
while (index < str->n_samples - 1) {
|
|
if (!qtdemux_parse_samples (qtdemux, str, index + 1))
|
|
goto parse_failed;
|
|
|
|
if (media_offset < result->offset)
|
|
break;
|
|
|
|
index++;
|
|
result++;
|
|
}
|
|
return index;
|
|
|
|
/* ERRORS */
|
|
parse_failed:
|
|
{
|
|
GST_LOG_OBJECT (qtdemux, "Parsing of index %u failed!", index + 1);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* find the index of the sample that includes the data for @media_time using a
|
|
* linear search, and keeping in mind that not all samples may have been parsed
|
|
* yet. If possible, it will delegate to binary search.
|
|
*
|
|
* Returns the index of the sample.
|
|
*/
|
|
static guint32
|
|
gst_qtdemux_find_index_linear (GstQTDemux * qtdemux, QtDemuxStream * str,
|
|
GstClockTime media_time)
|
|
{
|
|
guint32 index = 0;
|
|
guint64 mov_time;
|
|
QtDemuxSample *sample;
|
|
|
|
/* convert media_time to mov format */
|
|
mov_time =
|
|
gst_util_uint64_scale_ceil (media_time, str->timescale, GST_SECOND);
|
|
|
|
sample = str->samples;
|
|
if (mov_time == sample->timestamp + sample->pts_offset)
|
|
return index;
|
|
|
|
/* use faster search if requested time in already parsed range */
|
|
sample = str->samples + str->stbl_index;
|
|
if (str->stbl_index >= 0 && mov_time <= sample->timestamp) {
|
|
index = gst_qtdemux_find_index (qtdemux, str, media_time);
|
|
sample = str->samples + index;
|
|
} else {
|
|
while (index < str->n_samples - 1) {
|
|
if (!qtdemux_parse_samples (qtdemux, str, index + 1))
|
|
goto parse_failed;
|
|
|
|
sample = str->samples + index + 1;
|
|
if (mov_time < sample->timestamp) {
|
|
sample = str->samples + index;
|
|
break;
|
|
}
|
|
|
|
index++;
|
|
}
|
|
}
|
|
|
|
/* sample->timestamp is now <= media_time, need to find the corresponding
|
|
* PTS now by looking backwards */
|
|
while (index > 0 && sample->timestamp + sample->pts_offset > mov_time) {
|
|
index--;
|
|
sample = str->samples + index;
|
|
}
|
|
|
|
return index;
|
|
|
|
/* ERRORS */
|
|
parse_failed:
|
|
{
|
|
GST_LOG_OBJECT (qtdemux, "Parsing of index %u failed!", index + 1);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* find the index of the keyframe needed to decode the sample at @index
|
|
* of stream @str, or of a subsequent keyframe (depending on @next)
|
|
*
|
|
* Returns the index of the keyframe.
|
|
*/
|
|
static guint32
|
|
gst_qtdemux_find_keyframe (GstQTDemux * qtdemux, QtDemuxStream * str,
|
|
guint32 index, gboolean next)
|
|
{
|
|
guint32 new_index = index;
|
|
|
|
if (index >= str->n_samples) {
|
|
new_index = str->n_samples;
|
|
goto beach;
|
|
}
|
|
|
|
/* all keyframes, return index */
|
|
if (str->all_keyframe) {
|
|
new_index = index;
|
|
goto beach;
|
|
}
|
|
|
|
/* else search until we have a keyframe */
|
|
while (new_index < str->n_samples) {
|
|
if (next && !qtdemux_parse_samples (qtdemux, str, new_index))
|
|
goto parse_failed;
|
|
|
|
if (str->samples[new_index].keyframe)
|
|
break;
|
|
|
|
if (new_index == 0)
|
|
break;
|
|
|
|
if (next)
|
|
new_index++;
|
|
else
|
|
new_index--;
|
|
}
|
|
|
|
if (new_index == str->n_samples) {
|
|
GST_DEBUG_OBJECT (qtdemux, "no next keyframe");
|
|
new_index = -1;
|
|
}
|
|
|
|
beach:
|
|
GST_DEBUG_OBJECT (qtdemux, "searching for keyframe index %s index %u "
|
|
"gave %u", next ? "after" : "before", index, new_index);
|
|
|
|
return new_index;
|
|
|
|
/* ERRORS */
|
|
parse_failed:
|
|
{
|
|
GST_LOG_OBJECT (qtdemux, "Parsing of index %u failed!", new_index);
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
/* find the segment for @time_position for @stream
|
|
*
|
|
* Returns the index of the segment containing @time_position.
|
|
* Returns the last segment and sets the @eos variable to TRUE
|
|
* if the time is beyond the end. @eos may be NULL
|
|
*/
|
|
static guint32
|
|
gst_qtdemux_find_segment (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstClockTime time_position)
|
|
{
|
|
gint i;
|
|
guint32 seg_idx;
|
|
|
|
GST_LOG_OBJECT (stream->pad, "finding segment for %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (time_position));
|
|
|
|
seg_idx = -1;
|
|
for (i = 0; i < stream->n_segments; i++) {
|
|
QtDemuxSegment *segment = &stream->segments[i];
|
|
|
|
GST_LOG_OBJECT (stream->pad,
|
|
"looking at segment %" GST_TIME_FORMAT "-%" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (segment->time), GST_TIME_ARGS (segment->stop_time));
|
|
|
|
/* For the last segment we include stop_time in the last segment */
|
|
if (i < stream->n_segments - 1) {
|
|
if (segment->time <= time_position && time_position < segment->stop_time) {
|
|
GST_LOG_OBJECT (stream->pad, "segment %d matches", i);
|
|
seg_idx = i;
|
|
break;
|
|
}
|
|
} else {
|
|
/* Last segment always matches */
|
|
seg_idx = i;
|
|
break;
|
|
}
|
|
}
|
|
return seg_idx;
|
|
}
|
|
|
|
/* move the stream @str to the sample position @index.
|
|
*
|
|
* Updates @str->sample_index and marks discontinuity if needed.
|
|
*/
|
|
static void
|
|
gst_qtdemux_move_stream (GstQTDemux * qtdemux, QtDemuxStream * str,
|
|
guint32 index)
|
|
{
|
|
/* no change needed */
|
|
if (index == str->sample_index)
|
|
return;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "moving to sample %u of %u", index,
|
|
str->n_samples);
|
|
|
|
/* position changed, we have a discont */
|
|
str->sample_index = index;
|
|
str->offset_in_sample = 0;
|
|
/* Each time we move in the stream we store the position where we are
|
|
* starting from */
|
|
str->from_sample = index;
|
|
str->discont = TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_adjust_seek (GstQTDemux * qtdemux, gint64 desired_time,
|
|
gboolean use_sparse, gboolean next, gint64 * key_time, gint64 * key_offset)
|
|
{
|
|
guint64 min_offset;
|
|
gint64 min_byte_offset = -1;
|
|
guint i;
|
|
|
|
min_offset = next ? G_MAXUINT64 : desired_time;
|
|
|
|
/* for each stream, find the index of the sample in the segment
|
|
* and move back to the previous keyframe. */
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *str;
|
|
guint32 index, kindex;
|
|
guint32 seg_idx;
|
|
GstClockTime media_start;
|
|
GstClockTime media_time;
|
|
GstClockTime seg_time;
|
|
QtDemuxSegment *seg;
|
|
gboolean empty_segment = FALSE;
|
|
|
|
str = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
|
|
if (CUR_STREAM (str)->sparse && !use_sparse)
|
|
continue;
|
|
|
|
/* raw audio streams can be ignored as we can seek anywhere within them */
|
|
if (str->subtype == FOURCC_soun && str->need_clip)
|
|
continue;
|
|
|
|
seg_idx = gst_qtdemux_find_segment (qtdemux, str, desired_time);
|
|
GST_DEBUG_OBJECT (qtdemux, "align segment %d", seg_idx);
|
|
|
|
/* get segment and time in the segment */
|
|
seg = &str->segments[seg_idx];
|
|
seg_time = (desired_time - seg->time) * seg->rate;
|
|
|
|
while (QTSEGMENT_IS_EMPTY (seg)) {
|
|
seg_time = 0;
|
|
empty_segment = TRUE;
|
|
GST_DEBUG_OBJECT (str->pad, "Segment %d is empty, moving to next one",
|
|
seg_idx);
|
|
seg_idx++;
|
|
if (seg_idx == str->n_segments)
|
|
break;
|
|
seg = &str->segments[seg_idx];
|
|
}
|
|
|
|
if (seg_idx == str->n_segments) {
|
|
/* FIXME track shouldn't have the last segment as empty, but if it
|
|
* happens we better handle it */
|
|
continue;
|
|
}
|
|
|
|
/* get the media time in the segment */
|
|
media_start = seg->media_start + seg_time;
|
|
|
|
/* get the index of the sample with media time */
|
|
index = gst_qtdemux_find_index_linear (qtdemux, str, media_start);
|
|
GST_DEBUG_OBJECT (qtdemux, "sample for %" GST_TIME_FORMAT " at %u"
|
|
" at offset %" G_GUINT64_FORMAT " (empty segment: %d)",
|
|
GST_TIME_ARGS (media_start), index, str->samples[index].offset,
|
|
empty_segment);
|
|
|
|
/* shift to next frame if we are looking for next keyframe */
|
|
if (next && QTSAMPLE_PTS_NO_CSLG (str, &str->samples[index]) < media_start
|
|
&& index < str->stbl_index)
|
|
index++;
|
|
|
|
if (!empty_segment) {
|
|
/* find previous or next keyframe */
|
|
kindex = gst_qtdemux_find_keyframe (qtdemux, str, index, next);
|
|
|
|
/* if looking for next one, we will settle for one before if none found after */
|
|
if (next && kindex == -1)
|
|
kindex = gst_qtdemux_find_keyframe (qtdemux, str, index, FALSE);
|
|
|
|
/* Update the requested time whenever a keyframe was found, to make it
|
|
* accurate and avoid having the first buffer fall outside of the segment
|
|
*/
|
|
if (kindex != -1) {
|
|
index = kindex;
|
|
|
|
/* get timestamp of keyframe */
|
|
media_time = QTSAMPLE_PTS_NO_CSLG (str, &str->samples[kindex]);
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"keyframe at %u with time %" GST_TIME_FORMAT " at offset %"
|
|
G_GUINT64_FORMAT, kindex, GST_TIME_ARGS (media_time),
|
|
str->samples[kindex].offset);
|
|
|
|
/* keyframes in the segment get a chance to change the
|
|
* desired_offset. keyframes out of the segment are
|
|
* ignored. */
|
|
if (media_time >= seg->media_start) {
|
|
GstClockTime seg_time;
|
|
|
|
/* this keyframe is inside the segment, convert back to
|
|
* segment time */
|
|
seg_time = (media_time - seg->media_start) + seg->time;
|
|
|
|
/* Adjust the offset based on the earliest suitable keyframe found,
|
|
* based on which GST_SEEK_FLAG_SNAP_* is present (indicated by 'next').
|
|
* For SNAP_BEFORE we look for the earliest keyframe before desired_time,
|
|
* and in case of SNAP_AFTER - for the closest one after it. */
|
|
if (seg_time < min_offset)
|
|
min_offset = seg_time;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (min_byte_offset < 0 || str->samples[index].offset < min_byte_offset)
|
|
min_byte_offset = str->samples[index].offset;
|
|
}
|
|
|
|
if (key_time)
|
|
*key_time = min_offset;
|
|
if (key_offset)
|
|
*key_offset = min_byte_offset;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_convert_seek (GstPad * pad, GstFormat * format,
|
|
GstSeekType cur_type, gint64 * cur, GstSeekType stop_type, gint64 * stop)
|
|
{
|
|
gboolean res;
|
|
|
|
g_return_val_if_fail (format != NULL, FALSE);
|
|
g_return_val_if_fail (cur != NULL, FALSE);
|
|
g_return_val_if_fail (stop != NULL, FALSE);
|
|
|
|
if (*format == GST_FORMAT_TIME)
|
|
return TRUE;
|
|
|
|
res = TRUE;
|
|
if (cur_type != GST_SEEK_TYPE_NONE)
|
|
res = gst_pad_query_convert (pad, *format, *cur, GST_FORMAT_TIME, cur);
|
|
if (res && stop_type != GST_SEEK_TYPE_NONE)
|
|
res = gst_pad_query_convert (pad, *format, *stop, GST_FORMAT_TIME, stop);
|
|
|
|
if (res)
|
|
*format = GST_FORMAT_TIME;
|
|
|
|
return res;
|
|
}
|
|
|
|
/* perform seek in push based mode:
|
|
find BYTE position to move to based on time and delegate to upstream
|
|
*/
|
|
static gboolean
|
|
gst_qtdemux_do_push_seek (GstQTDemux * qtdemux, GstPad * pad, GstEvent * event)
|
|
{
|
|
gdouble rate;
|
|
GstFormat format;
|
|
GstSeekFlags flags;
|
|
GstSeekType cur_type, stop_type;
|
|
gint64 cur, stop, key_cur;
|
|
gboolean res;
|
|
gint64 byte_cur;
|
|
gint64 original_stop;
|
|
guint32 seqnum;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "doing push-based seek");
|
|
|
|
gst_event_parse_seek (event, &rate, &format, &flags,
|
|
&cur_type, &cur, &stop_type, &stop);
|
|
seqnum = gst_event_get_seqnum (event);
|
|
|
|
/* Directly send the instant-rate-change event here before taking the
|
|
* stream-lock so that it can be applied as soon as possible */
|
|
if (flags & GST_SEEK_FLAG_INSTANT_RATE_CHANGE) {
|
|
GstEvent *ev;
|
|
|
|
/* instant rate change only supported if direction does not change. All
|
|
* other requirements are already checked before creating the seek event
|
|
* but let's double-check here to be sure */
|
|
if ((qtdemux->segment.rate > 0 && rate < 0) ||
|
|
(qtdemux->segment.rate < 0 && rate > 0) ||
|
|
cur_type != GST_SEEK_TYPE_NONE ||
|
|
stop_type != GST_SEEK_TYPE_NONE || (flags & GST_SEEK_FLAG_FLUSH)) {
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"Instant rate change seeks only supported in the "
|
|
"same direction, without flushing and position change");
|
|
return FALSE;
|
|
}
|
|
|
|
ev = gst_event_new_instant_rate_change (rate / qtdemux->segment.rate,
|
|
(GstSegmentFlags) flags);
|
|
gst_event_set_seqnum (ev, seqnum);
|
|
gst_qtdemux_push_event (qtdemux, ev);
|
|
return TRUE;
|
|
}
|
|
|
|
/* only forward streaming and seeking is possible */
|
|
if (rate <= 0)
|
|
goto unsupported_seek;
|
|
|
|
/* convert to TIME if needed and possible */
|
|
if (!gst_qtdemux_convert_seek (pad, &format, cur_type, &cur,
|
|
stop_type, &stop))
|
|
goto no_format;
|
|
|
|
/* Upstream seek in bytes will have undefined stop, but qtdemux stores
|
|
* the original stop position to use when upstream pushes the new segment
|
|
* for this seek */
|
|
original_stop = stop;
|
|
stop = -1;
|
|
|
|
/* find reasonable corresponding BYTE position,
|
|
* also try to mind about keyframes, since we can not go back a bit for them
|
|
* later on */
|
|
/* determining @next here based on SNAP_BEFORE/SNAP_AFTER should
|
|
* mostly just work, but let's not yet boldly go there ... */
|
|
gst_qtdemux_adjust_seek (qtdemux, cur, FALSE, FALSE, &key_cur, &byte_cur);
|
|
|
|
if (byte_cur == -1)
|
|
goto abort_seek;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Pushing BYTE seek rate %g, "
|
|
"start %" G_GINT64_FORMAT ", stop %" G_GINT64_FORMAT, rate, byte_cur,
|
|
stop);
|
|
|
|
GST_OBJECT_LOCK (qtdemux);
|
|
qtdemux->seek_offset = byte_cur;
|
|
if (!(flags & GST_SEEK_FLAG_KEY_UNIT)) {
|
|
qtdemux->push_seek_start = cur;
|
|
} else {
|
|
qtdemux->push_seek_start = key_cur;
|
|
}
|
|
|
|
if (stop_type == GST_SEEK_TYPE_NONE) {
|
|
qtdemux->push_seek_stop = qtdemux->segment.stop;
|
|
} else {
|
|
qtdemux->push_seek_stop = original_stop;
|
|
}
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
|
|
qtdemux->segment_seqnum = seqnum;
|
|
/* BYTE seek event */
|
|
event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type, byte_cur,
|
|
stop_type, stop);
|
|
gst_event_set_seqnum (event, seqnum);
|
|
res = gst_pad_push_event (qtdemux->sinkpad, event);
|
|
|
|
return res;
|
|
|
|
/* ERRORS */
|
|
abort_seek:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "could not determine byte position to seek to, "
|
|
"seek aborted.");
|
|
return FALSE;
|
|
}
|
|
unsupported_seek:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "unsupported seek, seek aborted.");
|
|
return FALSE;
|
|
}
|
|
no_format:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "unsupported format given, seek aborted.");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* perform the seek.
|
|
*
|
|
* We set all segment_indexes in the streams to unknown and
|
|
* adjust the time_position to the desired position. this is enough
|
|
* to trigger a segment switch in the streaming thread to start
|
|
* streaming from the desired position.
|
|
*
|
|
* Keyframe seeking is a little more complicated when dealing with
|
|
* segments. Ideally we want to move to the previous keyframe in
|
|
* the segment but there might not be a keyframe in the segment. In
|
|
* fact, none of the segments could contain a keyframe. We take a
|
|
* practical approach: seek to the previous keyframe in the segment,
|
|
* if there is none, seek to the beginning of the segment.
|
|
*
|
|
* Called with STREAM_LOCK
|
|
*/
|
|
static gboolean
|
|
gst_qtdemux_perform_seek (GstQTDemux * qtdemux, GstSegment * segment,
|
|
guint32 seqnum, GstSeekFlags flags)
|
|
{
|
|
gint64 desired_offset;
|
|
guint i;
|
|
|
|
desired_offset = segment->position;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "seeking to %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (desired_offset));
|
|
|
|
/* may not have enough fragmented info to do this adjustment,
|
|
* and we can't scan (and probably should not) at this time with
|
|
* possibly flushing upstream */
|
|
if ((flags & GST_SEEK_FLAG_KEY_UNIT) && !qtdemux->fragmented) {
|
|
gint64 min_offset;
|
|
gboolean next, before, after;
|
|
|
|
before = ! !(flags & GST_SEEK_FLAG_SNAP_BEFORE);
|
|
after = ! !(flags & GST_SEEK_FLAG_SNAP_AFTER);
|
|
next = after && !before;
|
|
if (segment->rate < 0)
|
|
next = !next;
|
|
|
|
gst_qtdemux_adjust_seek (qtdemux, desired_offset, TRUE, next, &min_offset,
|
|
NULL);
|
|
GST_DEBUG_OBJECT (qtdemux, "keyframe seek, align to %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (min_offset));
|
|
desired_offset = min_offset;
|
|
}
|
|
|
|
/* and set all streams to the final position */
|
|
GST_OBJECT_LOCK (qtdemux);
|
|
gst_flow_combiner_reset (qtdemux->flowcombiner);
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
qtdemux->segment_seqnum = seqnum;
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
|
|
stream->time_position = desired_offset;
|
|
stream->accumulated_base = 0;
|
|
stream->sample_index = -1;
|
|
stream->offset_in_sample = 0;
|
|
stream->segment_index = -1;
|
|
stream->sent_eos = FALSE;
|
|
stream->last_keyframe_dts = GST_CLOCK_TIME_NONE;
|
|
|
|
if (segment->flags & GST_SEEK_FLAG_FLUSH)
|
|
gst_segment_init (&stream->segment, GST_FORMAT_TIME);
|
|
}
|
|
segment->position = desired_offset;
|
|
if (segment->rate >= 0) {
|
|
segment->start = desired_offset;
|
|
/* We need to update time as we update start in that direction */
|
|
segment->time = desired_offset;
|
|
|
|
/* we stop at the end */
|
|
if (segment->stop == -1)
|
|
segment->stop = segment->duration;
|
|
} else {
|
|
segment->stop = desired_offset;
|
|
}
|
|
|
|
if (qtdemux->fragmented)
|
|
qtdemux->fragmented_seek_pending = TRUE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* do a seek in pull based mode */
|
|
static gboolean
|
|
gst_qtdemux_do_seek (GstQTDemux * qtdemux, GstPad * pad, GstEvent * event)
|
|
{
|
|
gdouble rate = 1.0;
|
|
GstFormat format;
|
|
GstSeekFlags flags;
|
|
GstSeekType cur_type, stop_type;
|
|
gint64 cur, stop;
|
|
gboolean flush, instant_rate_change;
|
|
gboolean update;
|
|
GstSegment seeksegment;
|
|
guint32 seqnum = GST_SEQNUM_INVALID;
|
|
GstEvent *flush_event;
|
|
gboolean ret;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "doing seek with event");
|
|
|
|
gst_event_parse_seek (event, &rate, &format, &flags,
|
|
&cur_type, &cur, &stop_type, &stop);
|
|
seqnum = gst_event_get_seqnum (event);
|
|
|
|
/* we have to have a format as the segment format. Try to convert
|
|
* if not. */
|
|
if (!gst_qtdemux_convert_seek (pad, &format, cur_type, &cur,
|
|
stop_type, &stop))
|
|
goto no_format;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "seek format %s", gst_format_get_name (format));
|
|
|
|
flush = ! !(flags & GST_SEEK_FLAG_FLUSH);
|
|
instant_rate_change = ! !(flags & GST_SEEK_FLAG_INSTANT_RATE_CHANGE);
|
|
|
|
/* Directly send the instant-rate-change event here before taking the
|
|
* stream-lock so that it can be applied as soon as possible */
|
|
if (instant_rate_change) {
|
|
GstEvent *ev;
|
|
|
|
/* instant rate change only supported if direction does not change. All
|
|
* other requirements are already checked before creating the seek event
|
|
* but let's double-check here to be sure */
|
|
if ((qtdemux->segment.rate > 0 && rate < 0) ||
|
|
(qtdemux->segment.rate < 0 && rate > 0) ||
|
|
cur_type != GST_SEEK_TYPE_NONE ||
|
|
stop_type != GST_SEEK_TYPE_NONE || flush) {
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"Instant rate change seeks only supported in the "
|
|
"same direction, without flushing and position change");
|
|
return FALSE;
|
|
}
|
|
|
|
ev = gst_event_new_instant_rate_change (rate / qtdemux->segment.rate,
|
|
(GstSegmentFlags) flags);
|
|
gst_event_set_seqnum (ev, seqnum);
|
|
gst_qtdemux_push_event (qtdemux, ev);
|
|
return TRUE;
|
|
}
|
|
|
|
/* stop streaming, either by flushing or by pausing the task */
|
|
if (flush) {
|
|
flush_event = gst_event_new_flush_start ();
|
|
if (seqnum != GST_SEQNUM_INVALID)
|
|
gst_event_set_seqnum (flush_event, seqnum);
|
|
/* unlock upstream pull_range */
|
|
gst_pad_push_event (qtdemux->sinkpad, gst_event_ref (flush_event));
|
|
/* make sure out loop function exits */
|
|
gst_qtdemux_push_event (qtdemux, flush_event);
|
|
} else {
|
|
/* non flushing seek, pause the task */
|
|
gst_pad_pause_task (qtdemux->sinkpad);
|
|
}
|
|
|
|
/* wait for streaming to finish */
|
|
GST_PAD_STREAM_LOCK (qtdemux->sinkpad);
|
|
|
|
/* copy segment, we need this because we still need the old
|
|
* segment when we close the current segment. */
|
|
memcpy (&seeksegment, &qtdemux->segment, sizeof (GstSegment));
|
|
|
|
/* configure the segment with the seek variables */
|
|
GST_DEBUG_OBJECT (qtdemux, "configuring seek");
|
|
if (!gst_segment_do_seek (&seeksegment, rate, format, flags,
|
|
cur_type, cur, stop_type, stop, &update)) {
|
|
ret = FALSE;
|
|
GST_ERROR_OBJECT (qtdemux, "inconsistent seek values, doing nothing");
|
|
} else {
|
|
/* now do the seek */
|
|
ret = gst_qtdemux_perform_seek (qtdemux, &seeksegment, seqnum, flags);
|
|
}
|
|
|
|
/* prepare for streaming again */
|
|
if (flush) {
|
|
flush_event = gst_event_new_flush_stop (TRUE);
|
|
if (seqnum != GST_SEQNUM_INVALID)
|
|
gst_event_set_seqnum (flush_event, seqnum);
|
|
|
|
gst_pad_push_event (qtdemux->sinkpad, gst_event_ref (flush_event));
|
|
gst_qtdemux_push_event (qtdemux, flush_event);
|
|
}
|
|
|
|
/* commit the new segment */
|
|
memcpy (&qtdemux->segment, &seeksegment, sizeof (GstSegment));
|
|
|
|
if (qtdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
|
|
GstMessage *msg = gst_message_new_segment_start (GST_OBJECT_CAST (qtdemux),
|
|
qtdemux->segment.format, qtdemux->segment.position);
|
|
if (seqnum != GST_SEQNUM_INVALID)
|
|
gst_message_set_seqnum (msg, seqnum);
|
|
gst_element_post_message (GST_ELEMENT_CAST (qtdemux), msg);
|
|
}
|
|
|
|
/* restart streaming, NEWSEGMENT will be sent from the streaming thread. */
|
|
gst_pad_start_task (qtdemux->sinkpad, (GstTaskFunction) gst_qtdemux_loop,
|
|
qtdemux->sinkpad, NULL);
|
|
|
|
GST_PAD_STREAM_UNLOCK (qtdemux->sinkpad);
|
|
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
no_format:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "unsupported format given, seek aborted.");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_ensure_index (GstQTDemux * qtdemux)
|
|
{
|
|
guint i;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "collecting all metadata for all streams");
|
|
|
|
/* Build complete index */
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
|
|
if (!qtdemux_parse_samples (qtdemux, stream, stream->n_samples - 1)) {
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"Building complete index of track-id %u for seeking failed!",
|
|
stream->track_id);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_handle_src_event (GstPad * pad, GstObject * parent,
|
|
GstEvent * event)
|
|
{
|
|
gboolean res = TRUE;
|
|
GstQTDemux *qtdemux = GST_QTDEMUX (parent);
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_RECONFIGURE:
|
|
GST_OBJECT_LOCK (qtdemux);
|
|
gst_flow_combiner_reset (qtdemux->flowcombiner);
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
break;
|
|
case GST_EVENT_SEEK:
|
|
{
|
|
GstSeekFlags flags = 0;
|
|
GstFormat seek_format;
|
|
gboolean instant_rate_change;
|
|
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
GstClockTime ts = gst_util_get_timestamp ();
|
|
#endif
|
|
guint32 seqnum = gst_event_get_seqnum (event);
|
|
|
|
qtdemux->received_seek = TRUE;
|
|
|
|
gst_event_parse_seek (event, NULL, &seek_format, &flags, NULL, NULL, NULL,
|
|
NULL);
|
|
instant_rate_change = ! !(flags & GST_SEEK_FLAG_INSTANT_RATE_CHANGE);
|
|
|
|
if (seqnum == qtdemux->segment_seqnum) {
|
|
GST_LOG_OBJECT (pad,
|
|
"Drop duplicated SEEK event seqnum %" G_GUINT32_FORMAT, seqnum);
|
|
gst_event_unref (event);
|
|
return TRUE;
|
|
}
|
|
|
|
if (qtdemux->upstream_format_is_time && qtdemux->fragmented) {
|
|
/* seek should be handled by upstream, we might need to re-download fragments */
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"let upstream handle seek for fragmented playback");
|
|
goto upstream;
|
|
}
|
|
|
|
if (seek_format == GST_FORMAT_BYTES) {
|
|
GST_DEBUG_OBJECT (pad, "Rejecting seek request in bytes format");
|
|
gst_event_unref (event);
|
|
return FALSE;
|
|
}
|
|
|
|
gst_event_parse_seek_trickmode_interval (event,
|
|
&qtdemux->trickmode_interval);
|
|
|
|
/* Build complete index for seeking;
|
|
* if not a fragmented file at least and we're really doing a seek,
|
|
* not just an instant-rate-change */
|
|
if (!qtdemux->fragmented && !instant_rate_change) {
|
|
if (!qtdemux_ensure_index (qtdemux))
|
|
goto index_failed;
|
|
}
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
ts = gst_util_get_timestamp () - ts;
|
|
GST_INFO_OBJECT (qtdemux,
|
|
"Time taken to parse index %" GST_TIME_FORMAT, GST_TIME_ARGS (ts));
|
|
#endif
|
|
if (qtdemux->pullbased) {
|
|
res = gst_qtdemux_do_seek (qtdemux, pad, event);
|
|
} else if (gst_pad_push_event (qtdemux->sinkpad, gst_event_ref (event))) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Upstream successfully seeked");
|
|
res = TRUE;
|
|
} else if (qtdemux->state == QTDEMUX_STATE_MOVIE
|
|
&& QTDEMUX_N_STREAMS (qtdemux)
|
|
&& !qtdemux->fragmented) {
|
|
res = gst_qtdemux_do_push_seek (qtdemux, pad, event);
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"ignoring seek in push mode in current state");
|
|
res = FALSE;
|
|
}
|
|
gst_event_unref (event);
|
|
}
|
|
break;
|
|
default:
|
|
upstream:
|
|
res = gst_pad_event_default (pad, parent, event);
|
|
break;
|
|
}
|
|
|
|
done:
|
|
return res;
|
|
|
|
/* ERRORS */
|
|
index_failed:
|
|
{
|
|
GST_ERROR_OBJECT (qtdemux, "Index failed");
|
|
gst_event_unref (event);
|
|
res = FALSE;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* Find, for each track, the first sample in coding order that has a file offset >= @byte_pos.
|
|
*
|
|
* If @fw is false, the coding order is explored backwards.
|
|
*
|
|
* If @set is true, each stream will be moved to its matched sample, or EOS if no matching
|
|
* sample is found for that track.
|
|
*
|
|
* The stream and sample index of the sample with the minimum offset in the direction explored
|
|
* (see @fw) is returned in the output parameters @_stream and @_index respectively.
|
|
*
|
|
* @_time is set to the QTSAMPLE_PTS of the matched sample with the minimum QTSAMPLE_PTS in the
|
|
* direction explored, which may not always match the QTSAMPLE_PTS of the sample returned in
|
|
* @_stream and @_index. */
|
|
static void
|
|
gst_qtdemux_find_sample (GstQTDemux * qtdemux, gint64 byte_pos, gboolean fw,
|
|
gboolean set, QtDemuxStream ** _stream, gint * _index, gint64 * _time)
|
|
{
|
|
gint i, index;
|
|
gint64 time, min_time;
|
|
QtDemuxStream *stream;
|
|
gint iter;
|
|
|
|
min_time = -1;
|
|
stream = NULL;
|
|
index = -1;
|
|
|
|
for (iter = 0; iter < QTDEMUX_N_STREAMS (qtdemux); iter++) {
|
|
QtDemuxStream *str;
|
|
gint inc;
|
|
gboolean set_sample;
|
|
|
|
str = QTDEMUX_NTH_STREAM (qtdemux, iter);
|
|
set_sample = !set;
|
|
|
|
if (fw) {
|
|
i = 0;
|
|
inc = 1;
|
|
} else {
|
|
i = str->n_samples - 1;
|
|
inc = -1;
|
|
}
|
|
|
|
for (; (i >= 0) && (i < str->n_samples); i += inc) {
|
|
if (str->samples[i].size == 0)
|
|
continue;
|
|
|
|
if (fw && (str->samples[i].offset < byte_pos))
|
|
continue;
|
|
|
|
if (!fw && (str->samples[i].offset + str->samples[i].size > byte_pos))
|
|
continue;
|
|
|
|
/* move stream to first available sample */
|
|
if (set) {
|
|
gst_qtdemux_move_stream (qtdemux, str, i);
|
|
set_sample = TRUE;
|
|
}
|
|
|
|
/* avoid index from sparse streams since they might be far away */
|
|
if (!CUR_STREAM (str)->sparse) {
|
|
/* determine min/max time */
|
|
time = QTSAMPLE_PTS (str, &str->samples[i]);
|
|
if (min_time == -1 || (!fw && time > min_time) ||
|
|
(fw && time < min_time)) {
|
|
min_time = time;
|
|
}
|
|
|
|
/* determine stream with leading sample, to get its position */
|
|
if (!stream ||
|
|
(fw && (str->samples[i].offset < stream->samples[index].offset)) ||
|
|
(!fw && (str->samples[i].offset > stream->samples[index].offset))) {
|
|
stream = str;
|
|
index = i;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* no sample for this stream, mark eos */
|
|
if (!set_sample)
|
|
gst_qtdemux_move_stream (qtdemux, str, str->n_samples);
|
|
}
|
|
|
|
if (_time)
|
|
*_time = min_time;
|
|
if (_stream)
|
|
*_stream = stream;
|
|
if (_index)
|
|
*_index = index;
|
|
}
|
|
|
|
/* Copied from mpegtsbase code */
|
|
/* FIXME: replace this function when we add new util function for stream-id creation */
|
|
static gchar *
|
|
_get_upstream_id (GstQTDemux * demux)
|
|
{
|
|
gchar *upstream_id = gst_pad_get_stream_id (demux->sinkpad);
|
|
|
|
if (!upstream_id) {
|
|
/* Try to create one from the upstream URI, else use a randome number */
|
|
GstQuery *query;
|
|
gchar *uri = NULL;
|
|
|
|
/* Try to generate one from the URI query and
|
|
* if it fails take a random number instead */
|
|
query = gst_query_new_uri ();
|
|
if (gst_element_query (GST_ELEMENT_CAST (demux), query)) {
|
|
gst_query_parse_uri (query, &uri);
|
|
}
|
|
|
|
if (uri) {
|
|
GChecksum *cs;
|
|
|
|
/* And then generate an SHA256 sum of the URI */
|
|
cs = g_checksum_new (G_CHECKSUM_SHA256);
|
|
g_checksum_update (cs, (const guchar *) uri, strlen (uri));
|
|
g_free (uri);
|
|
upstream_id = g_strdup (g_checksum_get_string (cs));
|
|
g_checksum_free (cs);
|
|
} else {
|
|
/* Just get some random number if the URI query fails */
|
|
GST_FIXME_OBJECT (demux, "Creating random stream-id, consider "
|
|
"implementing a deterministic way of creating a stream-id");
|
|
upstream_id =
|
|
g_strdup_printf ("%08x%08x%08x%08x", g_random_int (), g_random_int (),
|
|
g_random_int (), g_random_int ());
|
|
}
|
|
|
|
gst_query_unref (query);
|
|
}
|
|
return upstream_id;
|
|
}
|
|
|
|
static QtDemuxStream *
|
|
_create_stream (GstQTDemux * demux, guint32 track_id)
|
|
{
|
|
QtDemuxStream *stream;
|
|
gchar *upstream_id;
|
|
|
|
stream = g_new0 (QtDemuxStream, 1);
|
|
stream->demux = demux;
|
|
stream->track_id = track_id;
|
|
upstream_id = _get_upstream_id (demux);
|
|
stream->stream_id = g_strdup_printf ("%s/%03u", upstream_id, track_id);
|
|
g_free (upstream_id);
|
|
/* new streams always need a discont */
|
|
stream->discont = TRUE;
|
|
/* we enable clipping for raw audio/video streams */
|
|
stream->need_clip = FALSE;
|
|
stream->process_func = NULL;
|
|
stream->segment_index = -1;
|
|
stream->time_position = 0;
|
|
stream->sample_index = -1;
|
|
stream->offset_in_sample = 0;
|
|
stream->new_stream = TRUE;
|
|
stream->multiview_mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
|
|
stream->multiview_flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
|
|
stream->protected = FALSE;
|
|
stream->protection_scheme_type = 0;
|
|
stream->protection_scheme_version = 0;
|
|
stream->protection_scheme_info = NULL;
|
|
stream->n_samples_moof = 0;
|
|
stream->duration_moof = 0;
|
|
stream->duration_last_moof = 0;
|
|
stream->alignment = 1;
|
|
stream->stream_tags = gst_tag_list_new_empty ();
|
|
gst_tag_list_set_scope (stream->stream_tags, GST_TAG_SCOPE_STREAM);
|
|
g_queue_init (&stream->protection_scheme_event_queue);
|
|
stream->ref_count = 1;
|
|
/* consistent default for push based mode */
|
|
gst_segment_init (&stream->segment, GST_FORMAT_TIME);
|
|
return stream;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_setcaps (GstQTDemux * demux, GstCaps * caps)
|
|
{
|
|
GstStructure *structure;
|
|
const gchar *variant;
|
|
const GstCaps *mediacaps = NULL;
|
|
|
|
GST_DEBUG_OBJECT (demux, "Sink set caps: %" GST_PTR_FORMAT, caps);
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
variant = gst_structure_get_string (structure, "variant");
|
|
|
|
if (variant && strcmp (variant, "mse-bytestream") == 0) {
|
|
demux->variant = VARIANT_MSE_BYTESTREAM;
|
|
}
|
|
|
|
if (variant && strcmp (variant, "mss-fragmented") == 0) {
|
|
QtDemuxStream *stream;
|
|
const GValue *value;
|
|
|
|
demux->fragmented = TRUE;
|
|
demux->variant = VARIANT_MSS_FRAGMENTED;
|
|
|
|
if (QTDEMUX_N_STREAMS (demux) > 1) {
|
|
/* can't do this, we can only renegotiate for another mss format */
|
|
return FALSE;
|
|
}
|
|
|
|
value = gst_structure_get_value (structure, "media-caps");
|
|
/* create stream */
|
|
if (value) {
|
|
const GValue *timescale_v;
|
|
|
|
/* TODO update when stream changes during playback */
|
|
|
|
if (QTDEMUX_N_STREAMS (demux) == 0) {
|
|
stream = _create_stream (demux, 1);
|
|
g_ptr_array_add (demux->active_streams, stream);
|
|
/* mss has no stsd/stsd entry, use id 0 as default */
|
|
stream->stsd_entries_length = 1;
|
|
stream->stsd_sample_description_id = stream->cur_stsd_entry_index = 0;
|
|
stream->stsd_entries = g_new0 (QtDemuxStreamStsdEntry, 1);
|
|
} else {
|
|
stream = QTDEMUX_NTH_STREAM (demux, 0);
|
|
}
|
|
|
|
timescale_v = gst_structure_get_value (structure, "timescale");
|
|
if (timescale_v) {
|
|
stream->timescale = g_value_get_uint64 (timescale_v);
|
|
} else {
|
|
/* default mss timescale */
|
|
stream->timescale = 10000000;
|
|
}
|
|
demux->timescale = stream->timescale;
|
|
|
|
mediacaps = gst_value_get_caps (value);
|
|
if (!CUR_STREAM (stream)->caps
|
|
|| !gst_caps_is_equal_fixed (mediacaps, CUR_STREAM (stream)->caps)) {
|
|
GST_DEBUG_OBJECT (demux, "We have a new caps %" GST_PTR_FORMAT,
|
|
mediacaps);
|
|
stream->new_caps = TRUE;
|
|
}
|
|
gst_caps_replace (&CUR_STREAM (stream)->caps, (GstCaps *) mediacaps);
|
|
structure = gst_caps_get_structure (mediacaps, 0);
|
|
if (g_str_has_prefix (gst_structure_get_name (structure), "video")) {
|
|
stream->subtype = FOURCC_vide;
|
|
|
|
gst_structure_get_int (structure, "width", &CUR_STREAM (stream)->width);
|
|
gst_structure_get_int (structure, "height",
|
|
&CUR_STREAM (stream)->height);
|
|
gst_structure_get_fraction (structure, "framerate",
|
|
&CUR_STREAM (stream)->fps_n, &CUR_STREAM (stream)->fps_d);
|
|
} else if (g_str_has_prefix (gst_structure_get_name (structure), "audio")) {
|
|
gint rate = 0;
|
|
stream->subtype = FOURCC_soun;
|
|
gst_structure_get_int (structure, "channels",
|
|
&CUR_STREAM (stream)->n_channels);
|
|
gst_structure_get_int (structure, "rate", &rate);
|
|
CUR_STREAM (stream)->rate = rate;
|
|
} else if (gst_structure_has_name (structure, "application/x-cenc")) {
|
|
if (gst_structure_has_field (structure, "original-media-type")) {
|
|
const gchar *media_type =
|
|
gst_structure_get_string (structure, "original-media-type");
|
|
if (g_str_has_prefix (media_type, "video")) {
|
|
stream->subtype = FOURCC_vide;
|
|
} else if (g_str_has_prefix (media_type, "audio")) {
|
|
stream->subtype = FOURCC_soun;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
gst_caps_replace (&demux->media_caps, (GstCaps *) mediacaps);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_reset (GstQTDemux * qtdemux, gboolean hard)
|
|
{
|
|
gint i;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Resetting demux");
|
|
|
|
if (hard || qtdemux->upstream_format_is_time) {
|
|
qtdemux->state = QTDEMUX_STATE_INITIAL;
|
|
qtdemux->neededbytes = 16;
|
|
qtdemux->todrop = 0;
|
|
qtdemux->pullbased = FALSE;
|
|
g_clear_pointer (&qtdemux->redirect_location, g_free);
|
|
qtdemux->first_mdat = -1;
|
|
qtdemux->header_size = 0;
|
|
qtdemux->mdatoffset = -1;
|
|
qtdemux->restoredata_offset = -1;
|
|
if (qtdemux->mdatbuffer)
|
|
gst_buffer_unref (qtdemux->mdatbuffer);
|
|
if (qtdemux->restoredata_buffer)
|
|
gst_buffer_unref (qtdemux->restoredata_buffer);
|
|
qtdemux->mdatbuffer = NULL;
|
|
qtdemux->restoredata_buffer = NULL;
|
|
qtdemux->mdatleft = 0;
|
|
qtdemux->mdatsize = 0;
|
|
if (qtdemux->comp_brands)
|
|
gst_buffer_unref (qtdemux->comp_brands);
|
|
qtdemux->comp_brands = NULL;
|
|
qtdemux->last_moov_offset = -1;
|
|
if (qtdemux->moov_node_compressed) {
|
|
g_node_destroy (qtdemux->moov_node_compressed);
|
|
if (qtdemux->moov_node)
|
|
g_free (qtdemux->moov_node->data);
|
|
}
|
|
qtdemux->moov_node_compressed = NULL;
|
|
if (qtdemux->moov_node)
|
|
g_node_destroy (qtdemux->moov_node);
|
|
qtdemux->moov_node = NULL;
|
|
if (qtdemux->tag_list)
|
|
gst_mini_object_unref (GST_MINI_OBJECT_CAST (qtdemux->tag_list));
|
|
qtdemux->tag_list = gst_tag_list_new_empty ();
|
|
gst_tag_list_set_scope (qtdemux->tag_list, GST_TAG_SCOPE_GLOBAL);
|
|
#if 0
|
|
if (qtdemux->element_index)
|
|
gst_object_unref (qtdemux->element_index);
|
|
qtdemux->element_index = NULL;
|
|
#endif
|
|
qtdemux->major_brand = 0;
|
|
qtdemux->upstream_format_is_time = FALSE;
|
|
qtdemux->upstream_seekable = FALSE;
|
|
qtdemux->upstream_size = 0;
|
|
|
|
qtdemux->fragment_start = -1;
|
|
qtdemux->fragment_start_offset = -1;
|
|
qtdemux->duration = 0;
|
|
qtdemux->moof_offset = 0;
|
|
qtdemux->chapters_track_id = 0;
|
|
qtdemux->have_group_id = FALSE;
|
|
qtdemux->group_id = G_MAXUINT;
|
|
|
|
g_queue_clear_full (&qtdemux->protection_event_queue,
|
|
(GDestroyNotify) gst_event_unref);
|
|
|
|
qtdemux->received_seek = FALSE;
|
|
qtdemux->first_moof_already_parsed = FALSE;
|
|
}
|
|
qtdemux->offset = 0;
|
|
gst_adapter_clear (qtdemux->adapter);
|
|
gst_segment_init (&qtdemux->segment, GST_FORMAT_TIME);
|
|
qtdemux->need_segment = TRUE;
|
|
|
|
if (hard) {
|
|
qtdemux->segment_seqnum = GST_SEQNUM_INVALID;
|
|
qtdemux->trickmode_interval = 0;
|
|
g_ptr_array_set_size (qtdemux->active_streams, 0);
|
|
g_ptr_array_set_size (qtdemux->old_streams, 0);
|
|
qtdemux->n_video_streams = 0;
|
|
qtdemux->n_audio_streams = 0;
|
|
qtdemux->n_sub_streams = 0;
|
|
qtdemux->n_meta_streams = 0;
|
|
qtdemux->exposed = FALSE;
|
|
qtdemux->fragmented = FALSE;
|
|
qtdemux->variant = VARIANT_NONE;
|
|
gst_caps_replace (&qtdemux->media_caps, NULL);
|
|
qtdemux->timescale = 0;
|
|
qtdemux->got_moov = FALSE;
|
|
qtdemux->start_utc_time = GST_CLOCK_TIME_NONE;
|
|
qtdemux->cenc_aux_info_offset = 0;
|
|
g_free (qtdemux->cenc_aux_info_sizes);
|
|
qtdemux->cenc_aux_info_sizes = NULL;
|
|
qtdemux->cenc_aux_sample_count = 0;
|
|
if (qtdemux->protection_system_ids) {
|
|
g_ptr_array_free (qtdemux->protection_system_ids, TRUE);
|
|
qtdemux->protection_system_ids = NULL;
|
|
}
|
|
qtdemux->streams_aware = GST_OBJECT_PARENT (qtdemux)
|
|
&& GST_OBJECT_FLAG_IS_SET (GST_OBJECT_PARENT (qtdemux),
|
|
GST_BIN_FLAG_STREAMS_AWARE);
|
|
|
|
if (qtdemux->preferred_protection_system_id) {
|
|
g_free (qtdemux->preferred_protection_system_id);
|
|
qtdemux->preferred_protection_system_id = NULL;
|
|
}
|
|
} else if (qtdemux->variant == VARIANT_MSS_FRAGMENTED) {
|
|
gst_flow_combiner_reset (qtdemux->flowcombiner);
|
|
g_ptr_array_foreach (qtdemux->active_streams,
|
|
(GFunc) gst_qtdemux_stream_clear, NULL);
|
|
} else {
|
|
gst_flow_combiner_reset (qtdemux->flowcombiner);
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
stream->sent_eos = FALSE;
|
|
stream->time_position = 0;
|
|
stream->accumulated_base = 0;
|
|
stream->last_keyframe_dts = GST_CLOCK_TIME_NONE;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_clear_protection_events_on_all_streams (GstQTDemux * qtdemux)
|
|
{
|
|
for (unsigned i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
g_queue_clear_full (&stream->protection_scheme_event_queue,
|
|
(GDestroyNotify) gst_event_unref);
|
|
}
|
|
}
|
|
|
|
/* Maps the @segment to the qt edts internal segments and pushes
|
|
* the corresponding segment event.
|
|
*
|
|
* If it ends up being at a empty segment, a gap will be pushed and the next
|
|
* edts segment will be activated in sequence.
|
|
*
|
|
* To be used in push-mode only */
|
|
static void
|
|
gst_qtdemux_map_and_push_segments (GstQTDemux * qtdemux, GstSegment * segment)
|
|
{
|
|
gint i, iter;
|
|
|
|
for (iter = 0; iter < QTDEMUX_N_STREAMS (qtdemux); iter++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, iter);
|
|
|
|
stream->time_position = segment->start;
|
|
|
|
/* in push mode we should be guaranteed that we will have empty segments
|
|
* at the beginning and then one segment after, other scenarios are not
|
|
* supported and are discarded when parsing the edts */
|
|
for (i = 0; i < stream->n_segments; i++) {
|
|
if (stream->segments[i].stop_time > segment->start) {
|
|
/* push the empty segment and move to the next one */
|
|
gst_qtdemux_activate_segment (qtdemux, stream, i,
|
|
stream->time_position);
|
|
if (QTSEGMENT_IS_EMPTY (&stream->segments[i])) {
|
|
gst_qtdemux_send_gap_for_segment (qtdemux, stream, i,
|
|
stream->time_position);
|
|
|
|
/* accumulate previous segments */
|
|
if (GST_CLOCK_TIME_IS_VALID (stream->segment.stop))
|
|
stream->accumulated_base +=
|
|
(stream->segment.stop -
|
|
stream->segment.start) / ABS (stream->segment.rate);
|
|
continue;
|
|
}
|
|
|
|
g_assert (i == stream->n_segments - 1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_stream_concat (GstQTDemux * qtdemux, GPtrArray * dest,
|
|
GPtrArray * src)
|
|
{
|
|
guint i;
|
|
guint len;
|
|
|
|
len = src->len;
|
|
|
|
if (len == 0)
|
|
return;
|
|
|
|
for (i = 0; i < len; i++) {
|
|
QtDemuxStream *stream = g_ptr_array_index (src, i);
|
|
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
GST_DEBUG_OBJECT (qtdemux, "Move stream %p (stream-id %s) to %p",
|
|
stream, GST_STR_NULL (stream->stream_id), dest);
|
|
#endif
|
|
g_ptr_array_add (dest, gst_qtdemux_stream_ref (stream));
|
|
}
|
|
|
|
g_ptr_array_set_size (src, 0);
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_handle_sink_event (GstPad * sinkpad, GstObject * parent,
|
|
GstEvent * event)
|
|
{
|
|
GstQTDemux *demux = GST_QTDEMUX (parent);
|
|
gboolean res = TRUE;
|
|
|
|
GST_LOG_OBJECT (demux, "handling %s event", GST_EVENT_TYPE_NAME (event));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_SEGMENT:
|
|
{
|
|
gint64 offset = 0;
|
|
QtDemuxStream *stream;
|
|
gint idx;
|
|
GstSegment segment;
|
|
|
|
/* some debug output */
|
|
gst_event_copy_segment (event, &segment);
|
|
GST_DEBUG_OBJECT (demux, "received newsegment %" GST_SEGMENT_FORMAT,
|
|
&segment);
|
|
|
|
if (segment.format == GST_FORMAT_TIME) {
|
|
demux->upstream_format_is_time = TRUE;
|
|
demux->segment_seqnum = gst_event_get_seqnum (event);
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "Not storing upstream newsegment, "
|
|
"not in time format");
|
|
|
|
/* chain will send initial newsegment after pads have been added */
|
|
if (demux->state != QTDEMUX_STATE_MOVIE || !QTDEMUX_N_STREAMS (demux)) {
|
|
GST_DEBUG_OBJECT (demux, "still starting, eating event");
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
/* check if this matches a time seek we received previously
|
|
* FIXME for backwards compatibility reasons we use the
|
|
* seek_offset here to compare. In the future we might want to
|
|
* change this to use the seqnum as it uniquely should identify
|
|
* the segment that corresponds to the seek. */
|
|
GST_DEBUG_OBJECT (demux, "Stored seek offset: %" G_GINT64_FORMAT
|
|
", received segment offset %" G_GINT64_FORMAT,
|
|
demux->seek_offset, segment.start);
|
|
if (segment.format == GST_FORMAT_BYTES
|
|
&& demux->seek_offset == segment.start) {
|
|
GST_OBJECT_LOCK (demux);
|
|
offset = segment.start;
|
|
|
|
segment.format = GST_FORMAT_TIME;
|
|
segment.start = demux->push_seek_start;
|
|
segment.stop = demux->push_seek_stop;
|
|
GST_DEBUG_OBJECT (demux, "Replaced segment with stored seek "
|
|
"segment %" GST_TIME_FORMAT " - %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (segment.start), GST_TIME_ARGS (segment.stop));
|
|
GST_OBJECT_UNLOCK (demux);
|
|
}
|
|
|
|
/* we only expect a BYTE segment, e.g. following a seek */
|
|
if (segment.format == GST_FORMAT_BYTES) {
|
|
if (GST_CLOCK_TIME_IS_VALID (segment.start)) {
|
|
offset = segment.start;
|
|
|
|
gst_qtdemux_find_sample (demux, segment.start, TRUE, FALSE, NULL,
|
|
NULL, (gint64 *) & segment.start);
|
|
if ((gint64) segment.start < 0)
|
|
segment.start = 0;
|
|
}
|
|
if (GST_CLOCK_TIME_IS_VALID (segment.stop)) {
|
|
gst_qtdemux_find_sample (demux, segment.stop, FALSE, FALSE, NULL,
|
|
NULL, (gint64 *) & segment.stop);
|
|
/* keyframe seeking should already arrange for start >= stop,
|
|
* but make sure in other rare cases */
|
|
segment.stop = MAX (segment.stop, segment.start);
|
|
}
|
|
} else if (segment.format == GST_FORMAT_TIME) {
|
|
/* push all data on the adapter before starting this
|
|
* new segment */
|
|
gst_qtdemux_process_adapter (demux, TRUE);
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "unsupported segment format, ignoring");
|
|
goto exit;
|
|
}
|
|
|
|
/* We shouldn't modify upstream driven TIME FORMAT segment */
|
|
if (!demux->upstream_format_is_time) {
|
|
/* accept upstream's notion of segment and distribute along */
|
|
segment.format = GST_FORMAT_TIME;
|
|
segment.position = segment.time = segment.start;
|
|
segment.duration = demux->segment.duration;
|
|
segment.base = gst_segment_to_running_time (&demux->segment,
|
|
GST_FORMAT_TIME, demux->segment.position);
|
|
}
|
|
|
|
gst_segment_copy_into (&segment, &demux->segment);
|
|
GST_DEBUG_OBJECT (demux, "Pushing newseg %" GST_SEGMENT_FORMAT, &segment);
|
|
|
|
/* map segment to internal qt segments and push on each stream */
|
|
if (QTDEMUX_N_STREAMS (demux)) {
|
|
demux->need_segment = TRUE;
|
|
gst_qtdemux_check_send_pending_segment (demux);
|
|
}
|
|
|
|
/* clear leftover in current segment, if any */
|
|
gst_adapter_clear (demux->adapter);
|
|
|
|
/* set up streaming thread */
|
|
demux->offset = offset;
|
|
if (demux->upstream_format_is_time) {
|
|
GST_DEBUG_OBJECT (demux, "Upstream is driving in time format, "
|
|
"set values to restart reading from a new atom");
|
|
demux->neededbytes = 16;
|
|
demux->todrop = 0;
|
|
} else {
|
|
gst_qtdemux_find_sample (demux, offset, TRUE, TRUE, &stream, &idx,
|
|
NULL);
|
|
if (stream) {
|
|
demux->todrop = stream->samples[idx].offset - offset;
|
|
demux->neededbytes = demux->todrop + stream->samples[idx].size;
|
|
} else {
|
|
/* set up for EOS */
|
|
demux->neededbytes = -1;
|
|
demux->todrop = 0;
|
|
}
|
|
}
|
|
exit:
|
|
gst_event_unref (event);
|
|
res = TRUE;
|
|
goto drop;
|
|
}
|
|
case GST_EVENT_FLUSH_START:
|
|
{
|
|
if (gst_event_get_seqnum (event) == demux->offset_seek_seqnum) {
|
|
gst_event_unref (event);
|
|
goto drop;
|
|
}
|
|
QTDEMUX_EXPOSE_LOCK (demux);
|
|
res = gst_pad_event_default (demux->sinkpad, parent, event);
|
|
QTDEMUX_EXPOSE_UNLOCK (demux);
|
|
goto drop;
|
|
}
|
|
case GST_EVENT_FLUSH_STOP:
|
|
{
|
|
guint64 dur;
|
|
|
|
dur = demux->segment.duration;
|
|
gst_qtdemux_reset (demux, FALSE);
|
|
demux->segment.duration = dur;
|
|
|
|
if (gst_event_get_seqnum (event) == demux->offset_seek_seqnum) {
|
|
gst_event_unref (event);
|
|
goto drop;
|
|
}
|
|
break;
|
|
}
|
|
case GST_EVENT_EOS:
|
|
/* If we are in push mode, and get an EOS before we've seen any streams,
|
|
* then error out - we have nowhere to send the EOS */
|
|
if (!demux->pullbased) {
|
|
gint i;
|
|
gboolean has_valid_stream = FALSE;
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (demux); i++) {
|
|
if (QTDEMUX_NTH_STREAM (demux, i)->pad != NULL) {
|
|
has_valid_stream = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
if (!has_valid_stream)
|
|
gst_qtdemux_post_no_playable_stream_error (demux);
|
|
else {
|
|
GST_DEBUG_OBJECT (demux, "Data still available after EOS: %u",
|
|
(guint) gst_adapter_available (demux->adapter));
|
|
if (gst_qtdemux_process_adapter (demux, TRUE) != GST_FLOW_OK) {
|
|
res = FALSE;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
case GST_EVENT_CAPS:{
|
|
GstCaps *caps = NULL;
|
|
|
|
gst_event_parse_caps (event, &caps);
|
|
gst_qtdemux_setcaps (demux, caps);
|
|
res = TRUE;
|
|
gst_event_unref (event);
|
|
goto drop;
|
|
}
|
|
case GST_EVENT_PROTECTION:
|
|
{
|
|
const gchar *system_id = NULL;
|
|
|
|
gst_event_parse_protection (event, &system_id, NULL, NULL);
|
|
GST_DEBUG_OBJECT (demux, "Received protection event for system ID %s",
|
|
system_id);
|
|
gst_qtdemux_append_protection_system_id (demux, system_id);
|
|
/* save the event for later, for source pads that have not been created */
|
|
g_queue_push_tail (&demux->protection_event_queue, gst_event_ref (event));
|
|
/* send it to all pads that already exist */
|
|
gst_qtdemux_push_event (demux, event);
|
|
res = TRUE;
|
|
goto drop;
|
|
}
|
|
case GST_EVENT_STREAM_START:
|
|
{
|
|
res = TRUE;
|
|
gst_event_unref (event);
|
|
|
|
/* Drain all the buffers */
|
|
gst_qtdemux_process_adapter (demux, TRUE);
|
|
gst_qtdemux_reset (demux, FALSE);
|
|
/* We expect new moov box after new stream-start event */
|
|
if (demux->exposed) {
|
|
gst_qtdemux_stream_concat (demux,
|
|
demux->old_streams, demux->active_streams);
|
|
}
|
|
|
|
goto drop;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
res = gst_pad_event_default (demux->sinkpad, parent, event) & res;
|
|
|
|
drop:
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_handle_sink_query (GstPad * pad, GstObject * parent,
|
|
GstQuery * query)
|
|
{
|
|
GstQTDemux *demux = GST_QTDEMUX (parent);
|
|
gboolean res = FALSE;
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_BITRATE:
|
|
{
|
|
GstClockTime duration;
|
|
|
|
/* populate demux->upstream_size if not done yet */
|
|
gst_qtdemux_check_seekability (demux);
|
|
|
|
if (demux->upstream_size != -1
|
|
&& gst_qtdemux_get_duration (demux, &duration)) {
|
|
guint bitrate =
|
|
gst_util_uint64_scale (8 * demux->upstream_size, GST_SECOND,
|
|
duration);
|
|
|
|
GST_LOG_OBJECT (demux, "bitrate query byte length: %" G_GUINT64_FORMAT
|
|
" duration %" GST_TIME_FORMAT " resulting a bitrate of %u",
|
|
demux->upstream_size, GST_TIME_ARGS (duration), bitrate);
|
|
|
|
/* TODO: better results based on ranges/index tables */
|
|
gst_query_set_bitrate (query, bitrate);
|
|
res = TRUE;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
res = gst_pad_query_default (pad, (GstObject *) demux, query);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
#if 0
|
|
static void
|
|
gst_qtdemux_set_index (GstElement * element, GstIndex * index)
|
|
{
|
|
GstQTDemux *demux = GST_QTDEMUX (element);
|
|
|
|
GST_OBJECT_LOCK (demux);
|
|
if (demux->element_index)
|
|
gst_object_unref (demux->element_index);
|
|
if (index) {
|
|
demux->element_index = gst_object_ref (index);
|
|
} else {
|
|
demux->element_index = NULL;
|
|
}
|
|
GST_OBJECT_UNLOCK (demux);
|
|
/* object lock might be taken again */
|
|
if (index)
|
|
gst_index_get_writer_id (index, GST_OBJECT (element), &demux->index_id);
|
|
GST_DEBUG_OBJECT (demux, "Set index %" GST_PTR_FORMAT "for writer id %d",
|
|
demux->element_index, demux->index_id);
|
|
}
|
|
|
|
static GstIndex *
|
|
gst_qtdemux_get_index (GstElement * element)
|
|
{
|
|
GstIndex *result = NULL;
|
|
GstQTDemux *demux = GST_QTDEMUX (element);
|
|
|
|
GST_OBJECT_LOCK (demux);
|
|
if (demux->element_index)
|
|
result = gst_object_ref (demux->element_index);
|
|
GST_OBJECT_UNLOCK (demux);
|
|
|
|
GST_DEBUG_OBJECT (demux, "Returning index %" GST_PTR_FORMAT, result);
|
|
|
|
return result;
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
gst_qtdemux_stbl_free (QtDemuxStream * stream)
|
|
{
|
|
g_free ((gpointer) stream->stco.data);
|
|
stream->stco.data = NULL;
|
|
g_free ((gpointer) stream->stsz.data);
|
|
stream->stsz.data = NULL;
|
|
g_free ((gpointer) stream->stsc.data);
|
|
stream->stsc.data = NULL;
|
|
g_free ((gpointer) stream->stts.data);
|
|
stream->stts.data = NULL;
|
|
g_free ((gpointer) stream->stss.data);
|
|
stream->stss.data = NULL;
|
|
g_free ((gpointer) stream->stps.data);
|
|
stream->stps.data = NULL;
|
|
g_free ((gpointer) stream->ctts.data);
|
|
stream->ctts.data = NULL;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_stream_flush_segments_data (QtDemuxStream * stream)
|
|
{
|
|
g_free (stream->segments);
|
|
stream->segments = NULL;
|
|
stream->segment_index = -1;
|
|
stream->accumulated_base = 0;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_stream_flush_samples_data (QtDemuxStream * stream)
|
|
{
|
|
g_free (stream->samples);
|
|
stream->samples = NULL;
|
|
gst_qtdemux_stbl_free (stream);
|
|
|
|
/* fragments */
|
|
g_free (stream->ra_entries);
|
|
stream->ra_entries = NULL;
|
|
stream->n_ra_entries = 0;
|
|
|
|
stream->sample_index = -1;
|
|
stream->stbl_index = -1;
|
|
stream->n_samples = 0;
|
|
stream->time_position = 0;
|
|
|
|
stream->n_samples_moof = 0;
|
|
stream->duration_moof = 0;
|
|
stream->duration_last_moof = 0;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_stream_clear (QtDemuxStream * stream)
|
|
{
|
|
gint i;
|
|
if (stream->allocator)
|
|
gst_object_unref (stream->allocator);
|
|
while (stream->buffers) {
|
|
gst_buffer_unref (GST_BUFFER_CAST (stream->buffers->data));
|
|
stream->buffers = g_slist_delete_link (stream->buffers, stream->buffers);
|
|
}
|
|
for (i = 0; i < stream->stsd_entries_length; i++) {
|
|
QtDemuxStreamStsdEntry *entry = &stream->stsd_entries[i];
|
|
if (entry->rgb8_palette) {
|
|
gst_memory_unref (entry->rgb8_palette);
|
|
entry->rgb8_palette = NULL;
|
|
}
|
|
entry->sparse = FALSE;
|
|
}
|
|
|
|
if (stream->stream_tags)
|
|
gst_tag_list_unref (stream->stream_tags);
|
|
|
|
stream->stream_tags = gst_tag_list_new_empty ();
|
|
gst_tag_list_set_scope (stream->stream_tags, GST_TAG_SCOPE_STREAM);
|
|
g_free (stream->redirect_uri);
|
|
stream->redirect_uri = NULL;
|
|
stream->sent_eos = FALSE;
|
|
stream->protected = FALSE;
|
|
if (stream->protection_scheme_info) {
|
|
if (stream->protection_scheme_type == FOURCC_cenc
|
|
|| stream->protection_scheme_type == FOURCC_cbcs) {
|
|
QtDemuxCencSampleSetInfo *info =
|
|
(QtDemuxCencSampleSetInfo *) stream->protection_scheme_info;
|
|
if (info->default_properties)
|
|
gst_structure_free (info->default_properties);
|
|
if (info->crypto_info)
|
|
g_ptr_array_free (info->crypto_info, TRUE);
|
|
}
|
|
if (stream->protection_scheme_type == FOURCC_aavd) {
|
|
QtDemuxAavdEncryptionInfo *info =
|
|
(QtDemuxAavdEncryptionInfo *) stream->protection_scheme_info;
|
|
if (info->default_properties)
|
|
gst_structure_free (info->default_properties);
|
|
}
|
|
g_free (stream->protection_scheme_info);
|
|
stream->protection_scheme_info = NULL;
|
|
}
|
|
stream->protection_scheme_type = 0;
|
|
stream->protection_scheme_version = 0;
|
|
g_queue_clear_full (&stream->protection_scheme_event_queue,
|
|
(GDestroyNotify) gst_event_unref);
|
|
gst_qtdemux_stream_flush_segments_data (stream);
|
|
gst_qtdemux_stream_flush_samples_data (stream);
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_stream_reset (QtDemuxStream * stream)
|
|
{
|
|
gint i;
|
|
gst_qtdemux_stream_clear (stream);
|
|
for (i = 0; i < stream->stsd_entries_length; i++) {
|
|
QtDemuxStreamStsdEntry *entry = &stream->stsd_entries[i];
|
|
if (entry->caps) {
|
|
gst_caps_unref (entry->caps);
|
|
entry->caps = NULL;
|
|
}
|
|
}
|
|
g_free (stream->stsd_entries);
|
|
stream->stsd_entries = NULL;
|
|
stream->stsd_entries_length = 0;
|
|
}
|
|
|
|
static QtDemuxStream *
|
|
gst_qtdemux_stream_ref (QtDemuxStream * stream)
|
|
{
|
|
g_atomic_int_add (&stream->ref_count, 1);
|
|
|
|
return stream;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_stream_unref (QtDemuxStream * stream)
|
|
{
|
|
if (g_atomic_int_dec_and_test (&stream->ref_count)) {
|
|
gst_qtdemux_stream_reset (stream);
|
|
gst_tag_list_unref (stream->stream_tags);
|
|
if (stream->pad) {
|
|
GstQTDemux *demux = stream->demux;
|
|
gst_element_remove_pad (GST_ELEMENT_CAST (demux), stream->pad);
|
|
GST_OBJECT_LOCK (demux);
|
|
gst_flow_combiner_remove_pad (demux->flowcombiner, stream->pad);
|
|
GST_OBJECT_UNLOCK (demux);
|
|
}
|
|
g_free (stream->stream_id);
|
|
g_free (stream);
|
|
}
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_qtdemux_change_state (GstElement * element, GstStateChange transition)
|
|
{
|
|
GstQTDemux *qtdemux = GST_QTDEMUX (element);
|
|
GstStateChangeReturn result = GST_STATE_CHANGE_FAILURE;
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
gst_qtdemux_reset (qtdemux, TRUE);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:{
|
|
gst_qtdemux_reset (qtdemux, TRUE);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_set_context (GstElement * element, GstContext * context)
|
|
{
|
|
GstQTDemux *qtdemux = GST_QTDEMUX (element);
|
|
|
|
g_return_if_fail (GST_IS_CONTEXT (context));
|
|
|
|
if (gst_context_has_context_type (context,
|
|
"drm-preferred-decryption-system-id")) {
|
|
const GstStructure *s;
|
|
|
|
s = gst_context_get_structure (context);
|
|
g_free (qtdemux->preferred_protection_system_id);
|
|
qtdemux->preferred_protection_system_id =
|
|
g_strdup (gst_structure_get_string (s, "decryption-system-id"));
|
|
GST_DEBUG_OBJECT (element, "set preferred decryption system to %s",
|
|
qtdemux->preferred_protection_system_id);
|
|
}
|
|
|
|
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
|
|
}
|
|
|
|
static void
|
|
qtdemux_parse_ftyp (GstQTDemux * qtdemux, const guint8 * buffer, gint length)
|
|
{
|
|
/* counts as header data */
|
|
qtdemux->header_size += length;
|
|
|
|
/* only consider at least a sufficiently complete ftyp atom */
|
|
if (length >= 20) {
|
|
GstBuffer *buf;
|
|
guint32 minor_version;
|
|
const guint8 *p;
|
|
|
|
qtdemux->major_brand = QT_FOURCC (buffer + 8);
|
|
GST_DEBUG_OBJECT (qtdemux, "ftyp major brand: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (qtdemux->major_brand));
|
|
minor_version = QT_UINT32 (buffer + 12);
|
|
GST_DEBUG_OBJECT (qtdemux, "ftyp minor version: %u", minor_version);
|
|
if (qtdemux->comp_brands)
|
|
gst_buffer_unref (qtdemux->comp_brands);
|
|
buf = qtdemux->comp_brands = gst_buffer_new_and_alloc (length - 16);
|
|
gst_buffer_fill (buf, 0, buffer + 16, length - 16);
|
|
|
|
p = buffer + 16;
|
|
length = length - 16;
|
|
while (length > 0) {
|
|
GST_DEBUG_OBJECT (qtdemux, "ftyp compatible brand: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (QT_FOURCC (p)));
|
|
length -= 4;
|
|
p += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_parse_styp (GstQTDemux * qtdemux, const guint8 * buffer, gint length)
|
|
{
|
|
/* only consider at least a sufficiently complete styp atom */
|
|
if (length >= 20) {
|
|
GstBuffer *buf;
|
|
guint32 major_brand;
|
|
guint32 minor_version;
|
|
const guint8 *p;
|
|
|
|
major_brand = QT_FOURCC (buffer + 8);
|
|
GST_DEBUG_OBJECT (qtdemux, "styp major brand: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (major_brand));
|
|
minor_version = QT_UINT32 (buffer + 12);
|
|
GST_DEBUG_OBJECT (qtdemux, "styp minor version: %u", minor_version);
|
|
buf = qtdemux->comp_brands = gst_buffer_new_and_alloc (length - 16);
|
|
gst_buffer_fill (buf, 0, buffer + 16, length - 16);
|
|
|
|
p = buffer + 16;
|
|
length = length - 16;
|
|
while (length > 0) {
|
|
GST_DEBUG_OBJECT (qtdemux, "styp compatible brand: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (QT_FOURCC (p)));
|
|
length -= 4;
|
|
p += 4;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_update_default_sample_cenc_settings (GstQTDemux * qtdemux,
|
|
QtDemuxCencSampleSetInfo * info, guint32 is_encrypted,
|
|
guint32 protection_scheme_type, guint8 iv_size, const guint8 * kid,
|
|
guint crypt_byte_block, guint skip_byte_block, guint8 constant_iv_size,
|
|
const guint8 * constant_iv)
|
|
{
|
|
GstBuffer *kid_buf = gst_buffer_new_allocate (NULL, 16, NULL);
|
|
gst_buffer_fill (kid_buf, 0, kid, 16);
|
|
if (info->default_properties)
|
|
gst_structure_free (info->default_properties);
|
|
info->default_properties =
|
|
gst_structure_new ("application/x-cenc",
|
|
"iv_size", G_TYPE_UINT, iv_size,
|
|
"encrypted", G_TYPE_BOOLEAN, (is_encrypted == 1),
|
|
"kid", GST_TYPE_BUFFER, kid_buf, NULL);
|
|
GST_DEBUG_OBJECT (qtdemux, "default sample properties: "
|
|
"is_encrypted=%u, iv_size=%u", is_encrypted, iv_size);
|
|
gst_buffer_unref (kid_buf);
|
|
if (protection_scheme_type == FOURCC_cbcs) {
|
|
if (crypt_byte_block != 0 || skip_byte_block != 0) {
|
|
gst_structure_set (info->default_properties, "crypt_byte_block",
|
|
G_TYPE_UINT, crypt_byte_block, "skip_byte_block", G_TYPE_UINT,
|
|
skip_byte_block, NULL);
|
|
}
|
|
if (constant_iv != NULL) {
|
|
GstBuffer *constant_iv_buf =
|
|
gst_buffer_new_allocate (NULL, constant_iv_size, NULL);
|
|
gst_buffer_fill (constant_iv_buf, 0, constant_iv, constant_iv_size);
|
|
gst_structure_set (info->default_properties, "constant_iv_size",
|
|
G_TYPE_UINT, constant_iv_size, "iv", GST_TYPE_BUFFER, constant_iv_buf,
|
|
NULL);
|
|
gst_buffer_unref (constant_iv_buf);
|
|
}
|
|
gst_structure_set (info->default_properties, "cipher-mode",
|
|
G_TYPE_STRING, "cbcs", NULL);
|
|
} else {
|
|
gst_structure_set (info->default_properties, "cipher-mode",
|
|
G_TYPE_STRING, "cenc", NULL);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_update_default_piff_encryption_settings (GstQTDemux * qtdemux,
|
|
QtDemuxCencSampleSetInfo * info, GstByteReader * br)
|
|
{
|
|
guint32 algorithm_id = 0;
|
|
const guint8 *kid;
|
|
gboolean is_encrypted = TRUE;
|
|
guint8 iv_size = 8;
|
|
|
|
if (!gst_byte_reader_get_uint24_le (br, &algorithm_id)) {
|
|
GST_ERROR_OBJECT (qtdemux, "Error getting box's algorithm ID field");
|
|
return FALSE;
|
|
}
|
|
|
|
algorithm_id >>= 8;
|
|
if (algorithm_id == 0) {
|
|
is_encrypted = FALSE;
|
|
} else if (algorithm_id == 1) {
|
|
GST_DEBUG_OBJECT (qtdemux, "AES 128-bits CTR encrypted stream");
|
|
} else if (algorithm_id == 2) {
|
|
GST_DEBUG_OBJECT (qtdemux, "AES 128-bits CBC encrypted stream");
|
|
}
|
|
|
|
if (!gst_byte_reader_get_uint8 (br, &iv_size))
|
|
return FALSE;
|
|
|
|
if (!gst_byte_reader_get_data (br, 16, &kid))
|
|
return FALSE;
|
|
|
|
qtdemux_update_default_sample_cenc_settings (qtdemux, info,
|
|
is_encrypted, FOURCC_cenc, iv_size, kid, 0, 0, 0, NULL);
|
|
gst_structure_set (info->default_properties, "piff_algorithm_id",
|
|
G_TYPE_UINT, algorithm_id, NULL);
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
static void
|
|
qtdemux_parse_piff (GstQTDemux * qtdemux, const guint8 * buffer, gint length,
|
|
guint offset)
|
|
{
|
|
GstByteReader br;
|
|
guint8 version;
|
|
guint32 flags = 0;
|
|
guint i;
|
|
guint iv_size = 8;
|
|
QtDemuxStream *stream;
|
|
GstStructure *structure;
|
|
QtDemuxCencSampleSetInfo *ss_info = NULL;
|
|
const gchar *system_id;
|
|
gboolean uses_sub_sample_encryption = FALSE;
|
|
guint32 sample_count;
|
|
|
|
if (QTDEMUX_N_STREAMS (qtdemux) == 0)
|
|
return;
|
|
|
|
stream = QTDEMUX_NTH_STREAM (qtdemux, 0);
|
|
|
|
structure = gst_caps_get_structure (CUR_STREAM (stream)->caps, 0);
|
|
if (!gst_structure_has_name (structure, "application/x-cenc")) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Attempting PIFF box parsing on an unencrypted stream.");
|
|
return;
|
|
}
|
|
|
|
if (!gst_structure_get (structure, GST_PROTECTION_SYSTEM_ID_CAPS_FIELD,
|
|
G_TYPE_STRING, &system_id, NULL)) {
|
|
GST_WARNING_OBJECT (qtdemux, "%s field not present in caps",
|
|
GST_PROTECTION_SYSTEM_ID_CAPS_FIELD);
|
|
return;
|
|
}
|
|
|
|
gst_qtdemux_append_protection_system_id (qtdemux, system_id);
|
|
|
|
stream->protected = TRUE;
|
|
stream->protection_scheme_type = FOURCC_cenc;
|
|
|
|
if (!stream->protection_scheme_info)
|
|
stream->protection_scheme_info = g_new0 (QtDemuxCencSampleSetInfo, 1);
|
|
|
|
ss_info = (QtDemuxCencSampleSetInfo *) stream->protection_scheme_info;
|
|
if (!ss_info->default_properties) {
|
|
ss_info->default_properties =
|
|
gst_structure_new ("application/x-cenc",
|
|
"iv_size", G_TYPE_UINT, iv_size, "encrypted", G_TYPE_BOOLEAN, TRUE,
|
|
NULL);
|
|
|
|
}
|
|
|
|
if (ss_info->crypto_info) {
|
|
GST_LOG_OBJECT (qtdemux, "unreffing existing crypto_info");
|
|
g_ptr_array_free (ss_info->crypto_info, TRUE);
|
|
ss_info->crypto_info = NULL;
|
|
}
|
|
|
|
/* skip UUID */
|
|
gst_byte_reader_init (&br, buffer + offset + 16, length - offset - 16);
|
|
|
|
if (!gst_byte_reader_get_uint8 (&br, &version)) {
|
|
GST_ERROR_OBJECT (qtdemux, "Error getting box's version field");
|
|
return;
|
|
}
|
|
|
|
if (!gst_byte_reader_get_uint24_be (&br, &flags)) {
|
|
GST_ERROR_OBJECT (qtdemux, "Error getting box's flags field");
|
|
return;
|
|
}
|
|
|
|
if ((flags & 0x000001)) {
|
|
if (!qtdemux_update_default_piff_encryption_settings (qtdemux, ss_info,
|
|
&br))
|
|
return;
|
|
} else if ((flags & 0x000002)) {
|
|
uses_sub_sample_encryption = TRUE;
|
|
}
|
|
|
|
if (!gst_structure_get_uint (ss_info->default_properties, "iv_size",
|
|
&iv_size)) {
|
|
GST_ERROR_OBJECT (qtdemux, "Error getting encryption IV size field");
|
|
return;
|
|
}
|
|
|
|
if (!gst_byte_reader_get_uint32_be (&br, &sample_count)) {
|
|
GST_ERROR_OBJECT (qtdemux, "Error getting box's sample count field");
|
|
return;
|
|
}
|
|
|
|
ss_info->crypto_info =
|
|
g_ptr_array_new_full (sample_count,
|
|
(GDestroyNotify) qtdemux_gst_structure_free);
|
|
|
|
for (i = 0; i < sample_count; ++i) {
|
|
GstStructure *properties;
|
|
guint8 *data;
|
|
GstBuffer *buf;
|
|
|
|
properties = qtdemux_get_cenc_sample_properties (qtdemux, stream, i);
|
|
if (properties == NULL) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to get properties for sample %u", i);
|
|
qtdemux->cenc_aux_sample_count = i;
|
|
return;
|
|
}
|
|
|
|
if (!gst_byte_reader_dup_data (&br, iv_size, &data)) {
|
|
GST_ERROR_OBJECT (qtdemux, "IV data not present for sample %u", i);
|
|
gst_structure_free (properties);
|
|
qtdemux->cenc_aux_sample_count = i;
|
|
return;
|
|
}
|
|
buf = gst_buffer_new_wrapped (data, iv_size);
|
|
gst_structure_set (properties, "iv", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
|
|
if (uses_sub_sample_encryption) {
|
|
guint16 n_subsamples;
|
|
const GValue *kid_buf_value;
|
|
|
|
if (!gst_byte_reader_get_uint16_be (&br, &n_subsamples)
|
|
|| n_subsamples == 0) {
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"failed to get subsample count for sample %u", i);
|
|
gst_structure_free (properties);
|
|
qtdemux->cenc_aux_sample_count = i;
|
|
return;
|
|
}
|
|
GST_LOG_OBJECT (qtdemux, "subsample count: %u", n_subsamples);
|
|
if (!gst_byte_reader_dup_data (&br, n_subsamples * 6, &data)) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to get subsample data for sample %u",
|
|
i);
|
|
gst_structure_free (properties);
|
|
qtdemux->cenc_aux_sample_count = i;
|
|
return;
|
|
}
|
|
buf = gst_buffer_new_wrapped (data, n_subsamples * 6);
|
|
|
|
kid_buf_value =
|
|
gst_structure_get_value (ss_info->default_properties, "kid");
|
|
|
|
gst_structure_set (properties,
|
|
"subsample_count", G_TYPE_UINT, n_subsamples,
|
|
"subsamples", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_structure_set_value (properties, "kid", kid_buf_value);
|
|
gst_buffer_unref (buf);
|
|
} else {
|
|
gst_structure_set (properties, "subsample_count", G_TYPE_UINT, 0, NULL);
|
|
}
|
|
|
|
g_ptr_array_add (ss_info->crypto_info, properties);
|
|
}
|
|
|
|
qtdemux->cenc_aux_sample_count = sample_count;
|
|
}
|
|
|
|
static void
|
|
qtdemux_parse_uuid (GstQTDemux * qtdemux, const guint8 * buffer, gint length)
|
|
{
|
|
static const guint8 xmp_uuid[] = { 0xBE, 0x7A, 0xCF, 0xCB,
|
|
0x97, 0xA9, 0x42, 0xE8,
|
|
0x9C, 0x71, 0x99, 0x94,
|
|
0x91, 0xE3, 0xAF, 0xAC
|
|
};
|
|
static const guint8 playready_uuid[] = {
|
|
0xd0, 0x8a, 0x4f, 0x18, 0x10, 0xf3, 0x4a, 0x82,
|
|
0xb6, 0xc8, 0x32, 0xd8, 0xab, 0xa1, 0x83, 0xd3
|
|
};
|
|
|
|
static const guint8 piff_sample_encryption_uuid[] = {
|
|
0xa2, 0x39, 0x4f, 0x52, 0x5a, 0x9b, 0x4f, 0x14,
|
|
0xa2, 0x44, 0x6c, 0x42, 0x7c, 0x64, 0x8d, 0xf4
|
|
};
|
|
|
|
guint offset;
|
|
|
|
/* counts as header data */
|
|
qtdemux->header_size += length;
|
|
|
|
offset = (QT_UINT32 (buffer) == 0) ? 16 : 8;
|
|
|
|
if (length <= offset + 16) {
|
|
GST_DEBUG_OBJECT (qtdemux, "uuid atom is too short, skipping");
|
|
return;
|
|
}
|
|
|
|
if (memcmp (buffer + offset, xmp_uuid, 16) == 0) {
|
|
GstBuffer *buf;
|
|
GstTagList *taglist;
|
|
|
|
buf = _gst_buffer_new_wrapped ((guint8 *) buffer + offset + 16,
|
|
length - offset - 16, NULL);
|
|
taglist = gst_tag_list_from_xmp_buffer (buf);
|
|
gst_buffer_unref (buf);
|
|
|
|
/* make sure we have a usable taglist */
|
|
qtdemux->tag_list = gst_tag_list_make_writable (qtdemux->tag_list);
|
|
|
|
qtdemux_handle_xmp_taglist (qtdemux, qtdemux->tag_list, taglist);
|
|
|
|
} else if (memcmp (buffer + offset, playready_uuid, 16) == 0) {
|
|
int len;
|
|
const gunichar2 *s_utf16;
|
|
char *contents;
|
|
|
|
len = GST_READ_UINT16_LE (buffer + offset + 0x30);
|
|
s_utf16 = (const gunichar2 *) (buffer + offset + 0x32);
|
|
contents = g_utf16_to_utf8 (s_utf16, len / 2, NULL, NULL, NULL);
|
|
GST_ERROR_OBJECT (qtdemux, "contents: %s", contents);
|
|
|
|
g_free (contents);
|
|
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DECRYPT,
|
|
(_("Cannot play stream because it is encrypted with PlayReady DRM.")),
|
|
(NULL));
|
|
} else if (memcmp (buffer + offset, piff_sample_encryption_uuid, 16) == 0) {
|
|
qtdemux_parse_piff (qtdemux, buffer, length, offset);
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "Ignoring unknown uuid: %08x-%08x-%08x-%08x",
|
|
GST_READ_UINT32_LE (buffer + offset),
|
|
GST_READ_UINT32_LE (buffer + offset + 4),
|
|
GST_READ_UINT32_LE (buffer + offset + 8),
|
|
GST_READ_UINT32_LE (buffer + offset + 12));
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_parse_sidx (GstQTDemux * qtdemux, const guint8 * buffer, gint length)
|
|
{
|
|
GstSidxParser sidx_parser;
|
|
GstIsoffParserResult res;
|
|
guint consumed;
|
|
|
|
gst_isoff_qt_sidx_parser_init (&sidx_parser);
|
|
|
|
res =
|
|
gst_isoff_qt_sidx_parser_add_data (&sidx_parser, buffer, length,
|
|
&consumed);
|
|
GST_DEBUG_OBJECT (qtdemux, "sidx parse result: %d", res);
|
|
if (res == GST_ISOFF_QT_PARSER_DONE) {
|
|
check_update_duration (qtdemux, sidx_parser.cumulative_pts);
|
|
}
|
|
gst_isoff_qt_sidx_parser_clear (&sidx_parser);
|
|
}
|
|
|
|
static void
|
|
qtdemux_parse_cstb (GstQTDemux * qtdemux, GstByteReader * data)
|
|
{
|
|
guint64 start_time;
|
|
guint32 entry_count;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Parsing CorrectStartTime box");
|
|
|
|
qtdemux->start_utc_time = GST_CLOCK_TIME_NONE;
|
|
|
|
if (gst_byte_reader_get_remaining (data) < 4) {
|
|
GST_WARNING_OBJECT (qtdemux, "Too small CorrectStartTime box");
|
|
return;
|
|
}
|
|
|
|
entry_count = gst_byte_reader_get_uint32_be_unchecked (data);
|
|
if (entry_count == 0)
|
|
return;
|
|
|
|
/* XXX: We assume that all start times are the same as different start times
|
|
* would violate the MP4 synchronization model, so we just take the first
|
|
* one here and apply it to all tracks.
|
|
*/
|
|
|
|
if (gst_byte_reader_get_remaining (data) < entry_count * 12) {
|
|
GST_WARNING_OBJECT (qtdemux, "Too small CorrectStartTime box");
|
|
return;
|
|
}
|
|
|
|
/* Skip track id */
|
|
gst_byte_reader_skip_unchecked (data, 4);
|
|
|
|
/* In 100ns intervals */
|
|
start_time = gst_byte_reader_get_uint64_be_unchecked (data);
|
|
|
|
/* Convert from Jan 1 1601 to Jan 1 1970 */
|
|
if (start_time < 11644473600 * G_GUINT64_CONSTANT (10000000)) {
|
|
GST_WARNING_OBJECT (qtdemux, "Start UTC time before UNIX epoch");
|
|
return;
|
|
}
|
|
start_time -= 11644473600 * G_GUINT64_CONSTANT (10000000);
|
|
|
|
/* Convert to GstClockTime */
|
|
start_time *= 100;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Start UTC time: %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (start_time));
|
|
|
|
qtdemux->start_utc_time = start_time;
|
|
}
|
|
|
|
/* caller verifies at least 8 bytes in buf */
|
|
static void
|
|
extract_initial_length_and_fourcc (const guint8 * data, gsize size,
|
|
guint64 * plength, guint32 * pfourcc)
|
|
{
|
|
guint64 length;
|
|
guint32 fourcc;
|
|
|
|
length = QT_UINT32 (data);
|
|
GST_DEBUG ("length 0x%08" G_GINT64_MODIFIER "x", length);
|
|
fourcc = QT_FOURCC (data + 4);
|
|
GST_DEBUG ("atom type %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
|
|
|
|
if (length == 0) {
|
|
length = G_MAXUINT64;
|
|
} else if (length == 1 && size >= 16) {
|
|
/* this means we have an extended size, which is the 64 bit value of
|
|
* the next 8 bytes */
|
|
length = QT_UINT64 (data + 8);
|
|
GST_DEBUG ("length 0x%08" G_GINT64_MODIFIER "x", length);
|
|
}
|
|
|
|
if (plength)
|
|
*plength = length;
|
|
if (pfourcc)
|
|
*pfourcc = fourcc;
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_mehd (GstQTDemux * qtdemux, GstByteReader * br)
|
|
{
|
|
guint32 version = 0;
|
|
GstClockTime duration = 0;
|
|
|
|
if (!gst_byte_reader_get_uint32_be (br, &version))
|
|
goto failed;
|
|
|
|
version >>= 24;
|
|
if (version == 1) {
|
|
if (!gst_byte_reader_get_uint64_be (br, &duration))
|
|
goto failed;
|
|
} else {
|
|
guint32 dur = 0;
|
|
|
|
if (!gst_byte_reader_get_uint32_be (br, &dur))
|
|
goto failed;
|
|
duration = dur;
|
|
}
|
|
|
|
GST_INFO_OBJECT (qtdemux, "mehd duration: %" G_GUINT64_FORMAT, duration);
|
|
qtdemux->duration = duration;
|
|
|
|
return TRUE;
|
|
|
|
failed:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing mehd failed");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_trex (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
guint32 * ds_duration, guint32 * ds_size, guint32 * ds_flags)
|
|
{
|
|
if (!stream->parsed_trex && qtdemux->moov_node) {
|
|
GNode *mvex, *trex;
|
|
GstByteReader trex_data;
|
|
|
|
mvex = qtdemux_tree_get_child_by_type (qtdemux->moov_node, FOURCC_mvex);
|
|
if (mvex) {
|
|
trex = qtdemux_tree_get_child_by_type_full (mvex, FOURCC_trex,
|
|
&trex_data);
|
|
while (trex) {
|
|
guint32 id = 0, sdi = 0, dur = 0, size = 0, flags = 0;
|
|
|
|
/* skip version/flags */
|
|
if (!gst_byte_reader_skip (&trex_data, 4))
|
|
goto next;
|
|
if (!gst_byte_reader_get_uint32_be (&trex_data, &id))
|
|
goto next;
|
|
if (id != stream->track_id)
|
|
goto next;
|
|
if (!gst_byte_reader_get_uint32_be (&trex_data, &sdi))
|
|
goto next;
|
|
if (!gst_byte_reader_get_uint32_be (&trex_data, &dur))
|
|
goto next;
|
|
if (!gst_byte_reader_get_uint32_be (&trex_data, &size))
|
|
goto next;
|
|
if (!gst_byte_reader_get_uint32_be (&trex_data, &flags))
|
|
goto next;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "fragment defaults for stream %d; "
|
|
"duration %d, size %d, flags 0x%x", stream->track_id,
|
|
dur, size, flags);
|
|
|
|
stream->parsed_trex = TRUE;
|
|
stream->def_sample_description_index = sdi;
|
|
stream->def_sample_duration = dur;
|
|
stream->def_sample_size = size;
|
|
stream->def_sample_flags = flags;
|
|
|
|
next:
|
|
/* iterate all siblings */
|
|
trex = qtdemux_tree_get_sibling_by_type_full (trex, FOURCC_trex,
|
|
&trex_data);
|
|
}
|
|
}
|
|
}
|
|
|
|
*ds_duration = stream->def_sample_duration;
|
|
*ds_size = stream->def_sample_size;
|
|
*ds_flags = stream->def_sample_flags;
|
|
|
|
/* even then, above values are better than random ... */
|
|
if (G_UNLIKELY (!stream->parsed_trex)) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"failed to find fragment defaults for stream %d", stream->track_id);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* This method should be called whenever a more accurate duration might
|
|
* have been found. It will update all relevant variables if/where needed
|
|
*/
|
|
static void
|
|
check_update_duration (GstQTDemux * qtdemux, GstClockTime duration)
|
|
{
|
|
guint i;
|
|
guint64 movdur;
|
|
GstClockTime prevdur;
|
|
|
|
movdur = GSTTIME_TO_QTTIME (qtdemux, duration);
|
|
|
|
if (movdur > qtdemux->duration) {
|
|
prevdur = QTTIME_TO_GSTTIME (qtdemux, qtdemux->duration);
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Updating total duration to %" GST_TIME_FORMAT " was %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (duration), GST_TIME_ARGS (prevdur));
|
|
qtdemux->duration = movdur;
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"qtdemux->segment.duration: %" GST_TIME_FORMAT " .stop: %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (qtdemux->segment.duration),
|
|
GST_TIME_ARGS (qtdemux->segment.stop));
|
|
if (qtdemux->segment.duration == prevdur) {
|
|
/* If the current segment has duration/stop identical to previous duration
|
|
* update them also (because they were set at that point in time with
|
|
* the wrong duration */
|
|
/* We convert the value *from* the timescale version to avoid rounding errors */
|
|
GstClockTime fixeddur = QTTIME_TO_GSTTIME (qtdemux, movdur);
|
|
GST_DEBUG_OBJECT (qtdemux, "Updated segment.duration and segment.stop");
|
|
qtdemux->segment.duration = fixeddur;
|
|
qtdemux->segment.stop = fixeddur;
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
|
|
movdur = GSTTIME_TO_QTSTREAMTIME (stream, duration);
|
|
if (movdur > stream->duration) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Updating stream #%d duration to %" GST_TIME_FORMAT, i,
|
|
GST_TIME_ARGS (duration));
|
|
stream->duration = movdur;
|
|
/* internal duration tracking state has been updated above, so */
|
|
/* preserve an open-ended dummy segment rather than repeatedly updating
|
|
* it and spamming downstream accordingly with segment events */
|
|
/* also mangle the edit list end time when fragmented with a single edit
|
|
* list that may only cover any non-fragmented data */
|
|
if ((stream->dummy_segment ||
|
|
(qtdemux->fragmented && stream->n_segments == 1)) &&
|
|
GST_CLOCK_TIME_IS_VALID (stream->segments[0].duration)) {
|
|
/* Update all dummy values to new duration */
|
|
stream->segments[0].stop_time = duration;
|
|
stream->segments[0].duration = duration;
|
|
stream->segments[0].media_stop = duration;
|
|
|
|
/* let downstream know we possibly have a new stop time */
|
|
if (stream->segment_index != -1) {
|
|
GstClockTime pos;
|
|
|
|
if (qtdemux->segment.rate >= 0) {
|
|
pos = stream->segment.start;
|
|
} else {
|
|
pos = stream->segment.stop;
|
|
}
|
|
|
|
gst_qtdemux_stream_update_segment (qtdemux, stream,
|
|
stream->segment_index, pos, NULL, NULL);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_trun (GstQTDemux * qtdemux, GstByteReader * trun,
|
|
QtDemuxStream * stream, guint32 d_sample_duration, guint32 d_sample_size,
|
|
guint32 d_sample_flags, gint64 moof_offset, gint64 moof_length,
|
|
gint64 * base_offset, gint64 * running_offset, gint64 decode_ts,
|
|
gboolean has_tfdt)
|
|
{
|
|
GstClockTime gst_ts = GST_CLOCK_TIME_NONE;
|
|
guint64 timestamp;
|
|
gint32 data_offset = 0;
|
|
guint8 version;
|
|
guint32 flags = 0, first_flags = 0, samples_count = 0;
|
|
gint i;
|
|
guint8 *data;
|
|
guint entry_size, dur_offset, size_offset, flags_offset = 0, ct_offset = 0;
|
|
QtDemuxSample *sample;
|
|
gboolean ismv = FALSE;
|
|
gint64 initial_offset;
|
|
gint32 min_ct = 0;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "parsing trun track-id %d; "
|
|
"default dur %d, size %d, flags 0x%x, base offset %" G_GINT64_FORMAT ", "
|
|
"decode ts %" G_GINT64_FORMAT, stream->track_id, d_sample_duration,
|
|
d_sample_size, d_sample_flags, *base_offset, decode_ts);
|
|
|
|
if (stream->pending_seek && moof_offset < stream->pending_seek->moof_offset) {
|
|
GST_INFO_OBJECT (stream->pad, "skipping trun before seek target fragment");
|
|
return TRUE;
|
|
}
|
|
|
|
/* presence of stss or not can't really tell us much,
|
|
* and flags and so on tend to be marginally reliable in these files */
|
|
if (stream->subtype == FOURCC_soun) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"sound track in fragmented file; marking all keyframes");
|
|
stream->all_keyframe = TRUE;
|
|
}
|
|
|
|
if (!gst_byte_reader_get_uint8 (trun, &version) ||
|
|
!gst_byte_reader_get_uint24_be (trun, &flags))
|
|
goto fail;
|
|
|
|
if (!gst_byte_reader_get_uint32_be (trun, &samples_count))
|
|
goto fail;
|
|
|
|
if (flags & TR_DATA_OFFSET) {
|
|
/* note this is really signed */
|
|
if (!gst_byte_reader_get_int32_be (trun, &data_offset))
|
|
goto fail;
|
|
GST_LOG_OBJECT (qtdemux, "trun data offset %d", data_offset);
|
|
/* default base offset = first byte of moof */
|
|
if (*base_offset == -1) {
|
|
GST_LOG_OBJECT (qtdemux, "base_offset at moof");
|
|
*base_offset = moof_offset;
|
|
}
|
|
*running_offset = *base_offset + data_offset;
|
|
} else {
|
|
/* if no offset at all, that would mean data starts at moof start,
|
|
* which is a bit wrong and is ismv crappy way, so compensate
|
|
* assuming data is in mdat following moof */
|
|
if (*base_offset == -1) {
|
|
*base_offset = moof_offset + moof_length + 8;
|
|
GST_LOG_OBJECT (qtdemux, "base_offset assumed in mdat after moof");
|
|
ismv = TRUE;
|
|
}
|
|
if (*running_offset == -1)
|
|
*running_offset = *base_offset;
|
|
}
|
|
|
|
GST_LOG_OBJECT (qtdemux, "running offset now %" G_GINT64_FORMAT,
|
|
*running_offset);
|
|
GST_LOG_OBJECT (qtdemux, "trun offset %d, flags 0x%x, entries %d",
|
|
data_offset, flags, samples_count);
|
|
|
|
if (flags & TR_FIRST_SAMPLE_FLAGS) {
|
|
if (G_UNLIKELY (flags & TR_SAMPLE_FLAGS)) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"invalid flags; SAMPLE and FIRST_SAMPLE present, discarding latter");
|
|
flags ^= TR_FIRST_SAMPLE_FLAGS;
|
|
} else {
|
|
if (!gst_byte_reader_get_uint32_be (trun, &first_flags))
|
|
goto fail;
|
|
GST_LOG_OBJECT (qtdemux, "first flags: 0x%x", first_flags);
|
|
}
|
|
}
|
|
|
|
/* FIXME ? spec says other bits should also be checked to determine
|
|
* entry size (and prefix size for that matter) */
|
|
entry_size = 0;
|
|
dur_offset = size_offset = 0;
|
|
if (flags & TR_SAMPLE_DURATION) {
|
|
GST_LOG_OBJECT (qtdemux, "entry duration present");
|
|
dur_offset = entry_size;
|
|
entry_size += 4;
|
|
}
|
|
if (flags & TR_SAMPLE_SIZE) {
|
|
GST_LOG_OBJECT (qtdemux, "entry size present");
|
|
size_offset = entry_size;
|
|
entry_size += 4;
|
|
}
|
|
if (flags & TR_SAMPLE_FLAGS) {
|
|
GST_LOG_OBJECT (qtdemux, "entry flags present");
|
|
flags_offset = entry_size;
|
|
entry_size += 4;
|
|
}
|
|
if (flags & TR_COMPOSITION_TIME_OFFSETS) {
|
|
GST_LOG_OBJECT (qtdemux, "entry ct offset present");
|
|
ct_offset = entry_size;
|
|
entry_size += 4;
|
|
}
|
|
|
|
if (!qt_atom_parser_has_chunks (trun, samples_count, entry_size))
|
|
goto fail;
|
|
data = (guint8 *) gst_byte_reader_peek_data_unchecked (trun);
|
|
|
|
if (stream->n_samples + samples_count >=
|
|
QTDEMUX_MAX_SAMPLE_INDEX_SIZE / sizeof (QtDemuxSample))
|
|
goto index_too_big;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "allocating n_samples %u * %u (%.2f MB)",
|
|
stream->n_samples + samples_count, (guint) sizeof (QtDemuxSample),
|
|
(stream->n_samples + samples_count) *
|
|
sizeof (QtDemuxSample) / (1024.0 * 1024.0));
|
|
|
|
/* create a new array of samples if it's the first sample parsed */
|
|
if (stream->n_samples == 0) {
|
|
g_assert (stream->samples == NULL);
|
|
stream->samples = g_try_new0 (QtDemuxSample, samples_count);
|
|
/* or try to reallocate it with space enough to insert the new samples */
|
|
} else
|
|
stream->samples = g_try_renew (QtDemuxSample, stream->samples,
|
|
stream->n_samples + samples_count);
|
|
if (stream->samples == NULL)
|
|
goto out_of_memory;
|
|
|
|
if (qtdemux->fragment_start != -1) {
|
|
timestamp = GSTTIME_TO_QTSTREAMTIME (stream, qtdemux->fragment_start);
|
|
qtdemux->fragment_start = -1;
|
|
} else {
|
|
if (stream->n_samples == 0) {
|
|
if (decode_ts > 0) {
|
|
timestamp = decode_ts;
|
|
} else if (stream->pending_seek != NULL) {
|
|
/* if we don't have a timestamp from a tfdt box, we'll use the one
|
|
* from the mfra seek table */
|
|
GST_INFO_OBJECT (stream->pad, "pending seek ts = %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (stream->pending_seek->ts));
|
|
|
|
/* FIXME: this is not fully correct, the timestamp refers to the random
|
|
* access sample refered to in the tfra entry, which may not necessarily
|
|
* be the first sample in the tfrag/trun (but hopefully/usually is) */
|
|
timestamp = GSTTIME_TO_QTSTREAMTIME (stream, stream->pending_seek->ts);
|
|
} else {
|
|
timestamp = 0;
|
|
}
|
|
|
|
gst_ts = QTSTREAMTIME_TO_GSTTIME (stream, timestamp);
|
|
GST_INFO_OBJECT (stream->pad, "first sample ts %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (gst_ts));
|
|
} else {
|
|
/* If this is a GST_FORMAT_BYTES stream and we have a tfdt then use it
|
|
* instead of the sum of sample durations */
|
|
if (has_tfdt && !qtdemux->upstream_format_is_time) {
|
|
timestamp = decode_ts;
|
|
gst_ts = QTSTREAMTIME_TO_GSTTIME (stream, timestamp);
|
|
GST_INFO_OBJECT (qtdemux, "first sample ts %" GST_TIME_FORMAT
|
|
" (using tfdt)", GST_TIME_ARGS (gst_ts));
|
|
} else {
|
|
/* subsequent fragments extend stream */
|
|
timestamp =
|
|
stream->samples[stream->n_samples - 1].timestamp +
|
|
stream->samples[stream->n_samples - 1].duration;
|
|
gst_ts = QTSTREAMTIME_TO_GSTTIME (stream, timestamp);
|
|
GST_INFO_OBJECT (qtdemux, "first sample ts %" GST_TIME_FORMAT
|
|
" (extends previous samples)", GST_TIME_ARGS (gst_ts));
|
|
}
|
|
}
|
|
}
|
|
|
|
initial_offset = *running_offset;
|
|
|
|
sample = stream->samples + stream->n_samples;
|
|
for (i = 0; i < samples_count; i++) {
|
|
guint32 dur, size, sflags;
|
|
gint32 ct;
|
|
|
|
/* first read sample data */
|
|
if (flags & TR_SAMPLE_DURATION) {
|
|
dur = QT_UINT32 (data + dur_offset);
|
|
} else {
|
|
dur = d_sample_duration;
|
|
}
|
|
if (flags & TR_SAMPLE_SIZE) {
|
|
size = QT_UINT32 (data + size_offset);
|
|
} else {
|
|
size = d_sample_size;
|
|
}
|
|
if (flags & TR_FIRST_SAMPLE_FLAGS) {
|
|
if (i == 0) {
|
|
sflags = first_flags;
|
|
} else {
|
|
sflags = d_sample_flags;
|
|
}
|
|
} else if (flags & TR_SAMPLE_FLAGS) {
|
|
sflags = QT_UINT32 (data + flags_offset);
|
|
} else {
|
|
sflags = d_sample_flags;
|
|
}
|
|
|
|
if (flags & TR_COMPOSITION_TIME_OFFSETS) {
|
|
/* Read offsets as signed numbers regardless of trun version as very
|
|
* high offsets are unlikely and there are files out there that use
|
|
* version=0 truns with negative offsets */
|
|
ct = QT_UINT32 (data + ct_offset);
|
|
|
|
/* FIXME: Set offset to 0 for "no decode samples". This needs
|
|
* to be handled in a codec specific manner ideally. */
|
|
if (ct == G_MININT32)
|
|
ct = 0;
|
|
} else {
|
|
ct = 0;
|
|
}
|
|
data += entry_size;
|
|
|
|
/* fill the sample information */
|
|
sample->offset = *running_offset;
|
|
sample->pts_offset = ct;
|
|
sample->size = size;
|
|
sample->timestamp = timestamp;
|
|
sample->duration = dur;
|
|
/* sample-is-difference-sample */
|
|
/* ismv seems to use 0x40 for keyframe, 0xc0 for non-keyframe,
|
|
* now idea how it relates to bitfield other than massive LE/BE confusion */
|
|
sample->keyframe = ismv ? ((sflags & 0xff) == 0x40) : !(sflags & 0x10000);
|
|
*running_offset += size;
|
|
timestamp += dur;
|
|
stream->duration_moof += dur;
|
|
sample++;
|
|
|
|
if (ct < min_ct)
|
|
min_ct = ct;
|
|
}
|
|
|
|
/* Shift PTS/DTS to allow for negative composition offsets while keeping
|
|
* A/V sync in place. This is similar to the code handling ctts/cslg in the
|
|
* non-fragmented case.
|
|
*/
|
|
if (min_ct < 0)
|
|
stream->cslg_shift = -min_ct;
|
|
else
|
|
stream->cslg_shift = 0;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Using clsg_shift %" G_GUINT64_FORMAT,
|
|
stream->cslg_shift);
|
|
|
|
/* Update total duration if needed */
|
|
check_update_duration (qtdemux, QTSTREAMTIME_TO_GSTTIME (stream, timestamp));
|
|
|
|
/* Pre-emptively figure out size of mdat based on trun information.
|
|
* If the [mdat] atom is effectivelly read, it will be replaced by the actual
|
|
* size, else we will still be able to use this when dealing with gap'ed
|
|
* input */
|
|
qtdemux->mdatleft = *running_offset - initial_offset;
|
|
qtdemux->mdatoffset = initial_offset;
|
|
qtdemux->mdatsize = qtdemux->mdatleft;
|
|
|
|
stream->n_samples += samples_count;
|
|
stream->n_samples_moof += samples_count;
|
|
|
|
if (stream->pending_seek != NULL)
|
|
stream->pending_seek = NULL;
|
|
|
|
return TRUE;
|
|
|
|
fail:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "failed to parse trun");
|
|
return FALSE;
|
|
}
|
|
out_of_memory:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "failed to allocate %d samples",
|
|
stream->n_samples);
|
|
return FALSE;
|
|
}
|
|
index_too_big:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "not allocating index of %d samples, would "
|
|
"be larger than %uMB (broken file?)", stream->n_samples,
|
|
QTDEMUX_MAX_SAMPLE_INDEX_SIZE >> 20);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* find stream with @id */
|
|
static inline QtDemuxStream *
|
|
qtdemux_find_stream (GstQTDemux * qtdemux, guint32 id)
|
|
{
|
|
QtDemuxStream *stream;
|
|
gint i;
|
|
|
|
/* check */
|
|
if (G_UNLIKELY (!id)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "invalid track id 0");
|
|
return NULL;
|
|
}
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
if (stream->track_id == id)
|
|
return stream;
|
|
}
|
|
if (qtdemux->variant == VARIANT_MSS_FRAGMENTED) {
|
|
/* mss should have only 1 stream anyway */
|
|
return QTDEMUX_NTH_STREAM (qtdemux, 0);
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_mfhd (GstQTDemux * qtdemux, GstByteReader * mfhd,
|
|
guint32 * fragment_number)
|
|
{
|
|
if (!gst_byte_reader_skip (mfhd, 4))
|
|
goto fail;
|
|
if (!gst_byte_reader_get_uint32_be (mfhd, fragment_number))
|
|
goto fail;
|
|
return TRUE;
|
|
fail:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "Failed to parse mfhd atom");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_tfhd (GstQTDemux * qtdemux, GstByteReader * tfhd,
|
|
QtDemuxStream ** stream, guint32 * default_sample_duration,
|
|
guint32 * default_sample_size, guint32 * default_sample_flags,
|
|
gint64 * base_offset)
|
|
{
|
|
guint32 flags = 0;
|
|
guint32 track_id = 0;
|
|
|
|
if (!gst_byte_reader_skip (tfhd, 1) ||
|
|
!gst_byte_reader_get_uint24_be (tfhd, &flags))
|
|
goto invalid_track;
|
|
|
|
if (!gst_byte_reader_get_uint32_be (tfhd, &track_id))
|
|
goto invalid_track;
|
|
|
|
*stream = qtdemux_find_stream (qtdemux, track_id);
|
|
if (G_UNLIKELY (!*stream))
|
|
goto unknown_stream;
|
|
|
|
if (flags & TF_DEFAULT_BASE_IS_MOOF)
|
|
*base_offset = qtdemux->moof_offset;
|
|
|
|
if (flags & TF_BASE_DATA_OFFSET)
|
|
if (!gst_byte_reader_get_uint64_be (tfhd, (guint64 *) base_offset))
|
|
goto invalid_track;
|
|
|
|
/* obtain stream defaults */
|
|
if (qtdemux_parse_trex (qtdemux, *stream,
|
|
default_sample_duration, default_sample_size, default_sample_flags)) {
|
|
|
|
/* Default sample description index is only valid if trex parsing succeeded */
|
|
(*stream)->stsd_sample_description_id =
|
|
(*stream)->def_sample_description_index - 1;
|
|
}
|
|
|
|
if (flags & TF_SAMPLE_DESCRIPTION_INDEX) {
|
|
guint32 sample_description_index;
|
|
if (!gst_byte_reader_get_uint32_be (tfhd, &sample_description_index))
|
|
goto invalid_track;
|
|
(*stream)->stsd_sample_description_id = sample_description_index - 1;
|
|
}
|
|
|
|
if (qtdemux->variant == VARIANT_MSS_FRAGMENTED) {
|
|
/* mss has no stsd entry */
|
|
(*stream)->stsd_sample_description_id = 0;
|
|
}
|
|
|
|
if (flags & TF_DEFAULT_SAMPLE_DURATION)
|
|
if (!gst_byte_reader_get_uint32_be (tfhd, default_sample_duration))
|
|
goto invalid_track;
|
|
|
|
if (flags & TF_DEFAULT_SAMPLE_SIZE)
|
|
if (!gst_byte_reader_get_uint32_be (tfhd, default_sample_size))
|
|
goto invalid_track;
|
|
|
|
if (flags & TF_DEFAULT_SAMPLE_FLAGS)
|
|
if (!gst_byte_reader_get_uint32_be (tfhd, default_sample_flags))
|
|
goto invalid_track;
|
|
|
|
return TRUE;
|
|
|
|
invalid_track:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "invalid track fragment header");
|
|
return FALSE;
|
|
}
|
|
unknown_stream:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "unknown stream (%u) in tfhd", track_id);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_tfdt (GstQTDemux * qtdemux, GstByteReader * br,
|
|
guint64 * decode_time)
|
|
{
|
|
guint32 version = 0;
|
|
|
|
if (!gst_byte_reader_get_uint32_be (br, &version))
|
|
return FALSE;
|
|
|
|
version >>= 24;
|
|
if (version == 1) {
|
|
if (!gst_byte_reader_get_uint64_be (br, decode_time))
|
|
goto failed;
|
|
} else {
|
|
guint32 dec_time = 0;
|
|
if (!gst_byte_reader_get_uint32_be (br, &dec_time))
|
|
goto failed;
|
|
*decode_time = dec_time;
|
|
}
|
|
|
|
GST_INFO_OBJECT (qtdemux, "Track fragment decode time: %" G_GUINT64_FORMAT,
|
|
*decode_time);
|
|
|
|
return TRUE;
|
|
|
|
failed:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing tfdt failed");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* Returns a pointer to a GstStructure containing the properties of
|
|
* the stream sample identified by @sample_index. The caller must unref
|
|
* the returned object after use. Returns NULL if unsuccessful. */
|
|
static GstStructure *
|
|
qtdemux_get_cenc_sample_properties (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream, guint sample_index)
|
|
{
|
|
QtDemuxCencSampleSetInfo *info = NULL;
|
|
|
|
g_return_val_if_fail (stream != NULL, NULL);
|
|
g_return_val_if_fail (stream->protected, NULL);
|
|
g_return_val_if_fail (stream->protection_scheme_info != NULL, NULL);
|
|
|
|
info = (QtDemuxCencSampleSetInfo *) stream->protection_scheme_info;
|
|
|
|
/* Currently, cenc properties for groups of samples are not supported, so
|
|
* simply return a copy of the default sample properties */
|
|
return gst_structure_copy (info->default_properties);
|
|
}
|
|
|
|
/* Parses the sizes of sample auxiliary information contained within a stream,
|
|
* as given in a saiz box. Returns array of sample_count guint8 size values,
|
|
* or NULL on failure */
|
|
static guint8 *
|
|
qtdemux_parse_saiz (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstByteReader * br, guint32 * sample_count)
|
|
{
|
|
guint32 flags = 0;
|
|
guint8 *info_sizes;
|
|
guint8 default_info_size;
|
|
|
|
g_return_val_if_fail (qtdemux != NULL, NULL);
|
|
g_return_val_if_fail (stream != NULL, NULL);
|
|
g_return_val_if_fail (br != NULL, NULL);
|
|
g_return_val_if_fail (sample_count != NULL, NULL);
|
|
|
|
if (!gst_byte_reader_get_uint32_be (br, &flags))
|
|
return NULL;
|
|
|
|
if (flags & 0x1) {
|
|
/* aux_info_type and aux_info_type_parameter are ignored */
|
|
if (!gst_byte_reader_skip (br, 8))
|
|
return NULL;
|
|
}
|
|
|
|
if (!gst_byte_reader_get_uint8 (br, &default_info_size))
|
|
return NULL;
|
|
GST_DEBUG_OBJECT (qtdemux, "default_info_size: %u", default_info_size);
|
|
|
|
if (!gst_byte_reader_get_uint32_be (br, sample_count))
|
|
return NULL;
|
|
GST_DEBUG_OBJECT (qtdemux, "sample_count: %u", *sample_count);
|
|
|
|
|
|
if (default_info_size == 0) {
|
|
if (!gst_byte_reader_dup_data (br, *sample_count, &info_sizes)) {
|
|
return NULL;
|
|
}
|
|
} else {
|
|
info_sizes = g_new (guint8, *sample_count);
|
|
memset (info_sizes, default_info_size, *sample_count);
|
|
}
|
|
|
|
return info_sizes;
|
|
}
|
|
|
|
/* Parses the offset of sample auxiliary information contained within a stream,
|
|
* as given in a saio box. Returns TRUE if successful; FALSE otherwise. */
|
|
static gboolean
|
|
qtdemux_parse_saio (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstByteReader * br, guint32 * info_type, guint32 * info_type_parameter,
|
|
guint64 * offset)
|
|
{
|
|
guint8 version = 0;
|
|
guint32 flags = 0;
|
|
guint32 aux_info_type = 0;
|
|
guint32 aux_info_type_parameter = 0;
|
|
guint32 entry_count;
|
|
guint32 off_32;
|
|
guint64 off_64;
|
|
const guint8 *aux_info_type_data = NULL;
|
|
|
|
g_return_val_if_fail (qtdemux != NULL, FALSE);
|
|
g_return_val_if_fail (stream != NULL, FALSE);
|
|
g_return_val_if_fail (br != NULL, FALSE);
|
|
g_return_val_if_fail (offset != NULL, FALSE);
|
|
|
|
if (!gst_byte_reader_get_uint8 (br, &version))
|
|
return FALSE;
|
|
|
|
if (!gst_byte_reader_get_uint24_be (br, &flags))
|
|
return FALSE;
|
|
|
|
if (flags & 0x1) {
|
|
|
|
if (!gst_byte_reader_get_data (br, 4, &aux_info_type_data))
|
|
return FALSE;
|
|
aux_info_type = QT_FOURCC (aux_info_type_data);
|
|
|
|
if (!gst_byte_reader_get_uint32_be (br, &aux_info_type_parameter))
|
|
return FALSE;
|
|
} else if (stream->protected) {
|
|
aux_info_type = stream->protection_scheme_type;
|
|
} else {
|
|
aux_info_type = CUR_STREAM (stream)->fourcc;
|
|
}
|
|
|
|
if (info_type)
|
|
*info_type = aux_info_type;
|
|
if (info_type_parameter)
|
|
*info_type_parameter = aux_info_type_parameter;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "aux_info_type: '%" GST_FOURCC_FORMAT "', "
|
|
"aux_info_type_parameter: %#06x",
|
|
GST_FOURCC_ARGS (aux_info_type), aux_info_type_parameter);
|
|
|
|
if (!gst_byte_reader_get_uint32_be (br, &entry_count))
|
|
return FALSE;
|
|
|
|
if (entry_count != 1) {
|
|
GST_ERROR_OBJECT (qtdemux, "multiple offsets are not supported");
|
|
return FALSE;
|
|
}
|
|
|
|
if (version == 0) {
|
|
if (!gst_byte_reader_get_uint32_be (br, &off_32))
|
|
return FALSE;
|
|
*offset = (guint64) off_32;
|
|
} else {
|
|
if (!gst_byte_reader_get_uint64_be (br, &off_64))
|
|
return FALSE;
|
|
*offset = off_64;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "offset: %" G_GUINT64_FORMAT, *offset);
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
qtdemux_gst_structure_free (GstStructure * gststructure)
|
|
{
|
|
if (gststructure) {
|
|
gst_structure_free (gststructure);
|
|
}
|
|
}
|
|
|
|
/* Parses auxiliary information relating to samples protected using
|
|
* Common Encryption (cenc); the format of this information
|
|
* is defined in ISO/IEC 23001-7. Returns TRUE if successful; FALSE
|
|
* otherwise. */
|
|
static gboolean
|
|
qtdemux_parse_cenc_aux_info (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstByteReader * br, guint8 * info_sizes, guint32 sample_count)
|
|
{
|
|
QtDemuxCencSampleSetInfo *ss_info = NULL;
|
|
guint8 size;
|
|
gint i;
|
|
GPtrArray *old_crypto_info = NULL;
|
|
guint old_entries = 0;
|
|
|
|
g_return_val_if_fail (qtdemux != NULL, FALSE);
|
|
g_return_val_if_fail (stream != NULL, FALSE);
|
|
g_return_val_if_fail (br != NULL, FALSE);
|
|
g_return_val_if_fail (stream->protected, FALSE);
|
|
g_return_val_if_fail (stream->protection_scheme_info != NULL, FALSE);
|
|
|
|
ss_info = (QtDemuxCencSampleSetInfo *) stream->protection_scheme_info;
|
|
|
|
if (ss_info->crypto_info) {
|
|
old_crypto_info = ss_info->crypto_info;
|
|
/* Count number of non-null entries remaining at the tail end */
|
|
for (i = old_crypto_info->len - 1; i >= 0; i--) {
|
|
if (g_ptr_array_index (old_crypto_info, i) == NULL)
|
|
break;
|
|
old_entries++;
|
|
}
|
|
}
|
|
|
|
ss_info->crypto_info =
|
|
g_ptr_array_new_full (sample_count + old_entries,
|
|
(GDestroyNotify) qtdemux_gst_structure_free);
|
|
|
|
/* We preserve old entries because we parse the next moof in advance
|
|
* of consuming all samples from the previous moof, and otherwise
|
|
* we'd discard the corresponding crypto info for the samples
|
|
* from the previous fragment. */
|
|
if (old_entries) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Preserving %d old crypto info entries",
|
|
old_entries);
|
|
for (i = old_crypto_info->len - old_entries; i < old_crypto_info->len; i++) {
|
|
g_ptr_array_add (ss_info->crypto_info, g_ptr_array_index (old_crypto_info,
|
|
i));
|
|
g_ptr_array_index (old_crypto_info, i) = NULL;
|
|
}
|
|
}
|
|
|
|
if (old_crypto_info) {
|
|
/* Everything now belongs to the new array */
|
|
g_ptr_array_free (old_crypto_info, TRUE);
|
|
}
|
|
|
|
for (i = 0; i < sample_count; ++i) {
|
|
GstStructure *properties;
|
|
guint16 n_subsamples = 0;
|
|
guint8 *data;
|
|
guint iv_size;
|
|
GstBuffer *buf;
|
|
gboolean could_read_iv;
|
|
|
|
properties = qtdemux_get_cenc_sample_properties (qtdemux, stream, i);
|
|
if (properties == NULL) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to get properties for sample %u", i);
|
|
return FALSE;
|
|
}
|
|
if (!gst_structure_get_uint (properties, "iv_size", &iv_size)) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to get iv_size for sample %u", i);
|
|
gst_structure_free (properties);
|
|
return FALSE;
|
|
}
|
|
could_read_iv =
|
|
iv_size > 0 ? gst_byte_reader_dup_data (br, iv_size, &data) : FALSE;
|
|
if (could_read_iv) {
|
|
buf = gst_buffer_new_wrapped (data, iv_size);
|
|
gst_structure_set (properties, "iv", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
} else if (stream->protection_scheme_type == FOURCC_cbcs) {
|
|
const GValue *constant_iv_size_value =
|
|
gst_structure_get_value (properties, "constant_iv_size");
|
|
const GValue *constant_iv_value =
|
|
gst_structure_get_value (properties, "iv");
|
|
if (constant_iv_size_value == NULL || constant_iv_value == NULL) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to get constant_iv");
|
|
gst_structure_free (properties);
|
|
return FALSE;
|
|
}
|
|
gst_structure_set_value (properties, "iv_size", constant_iv_size_value);
|
|
gst_structure_remove_field (properties, "constant_iv_size");
|
|
} else if (stream->protection_scheme_type == FOURCC_cenc) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to get IV for sample %u", i);
|
|
gst_structure_free (properties);
|
|
return FALSE;
|
|
}
|
|
size = info_sizes[i];
|
|
if (size > iv_size) {
|
|
if (!gst_byte_reader_get_uint16_be (br, &n_subsamples)
|
|
|| !(n_subsamples > 0)) {
|
|
gst_structure_free (properties);
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"failed to get subsample count for sample %u", i);
|
|
return FALSE;
|
|
}
|
|
GST_LOG_OBJECT (qtdemux, "subsample count: %u", n_subsamples);
|
|
if (!gst_byte_reader_dup_data (br, n_subsamples * 6, &data)) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to get subsample data for sample %u",
|
|
i);
|
|
gst_structure_free (properties);
|
|
return FALSE;
|
|
}
|
|
buf = gst_buffer_new_wrapped (data, n_subsamples * 6);
|
|
if (!buf) {
|
|
gst_structure_free (properties);
|
|
return FALSE;
|
|
}
|
|
gst_structure_set (properties,
|
|
"subsample_count", G_TYPE_UINT, n_subsamples,
|
|
"subsamples", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
} else {
|
|
gst_structure_set (properties, "subsample_count", G_TYPE_UINT, 0, NULL);
|
|
}
|
|
g_ptr_array_add (ss_info->crypto_info, properties);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/* Converts a UUID in raw byte form to a string representation, as defined in
|
|
* RFC 4122. The caller takes ownership of the returned string and is
|
|
* responsible for freeing it after use. */
|
|
static gchar *
|
|
qtdemux_uuid_bytes_to_string (gconstpointer uuid_bytes)
|
|
{
|
|
const guint8 *uuid = (const guint8 *) uuid_bytes;
|
|
|
|
return g_strdup_printf ("%02x%02x%02x%02x-%02x%02x-%02x%02x-"
|
|
"%02x%02x-%02x%02x%02x%02x%02x%02x",
|
|
uuid[0], uuid[1], uuid[2], uuid[3],
|
|
uuid[4], uuid[5], uuid[6], uuid[7],
|
|
uuid[8], uuid[9], uuid[10], uuid[11],
|
|
uuid[12], uuid[13], uuid[14], uuid[15]);
|
|
}
|
|
|
|
/* Parses a Protection System Specific Header box (pssh), as defined in the
|
|
* Common Encryption (cenc) standard (ISO/IEC 23001-7), which contains
|
|
* information needed by a specific content protection system in order to
|
|
* decrypt cenc-protected tracks. Returns TRUE if successful; FALSE
|
|
* otherwise. */
|
|
static gboolean
|
|
qtdemux_parse_pssh (GstQTDemux * qtdemux, GNode * node)
|
|
{
|
|
gchar *sysid_string;
|
|
guint32 pssh_size = QT_UINT32 (node->data);
|
|
GstBuffer *pssh = NULL;
|
|
GstEvent *event = NULL;
|
|
guint32 parent_box_type;
|
|
gint i;
|
|
|
|
if (G_UNLIKELY (pssh_size < 32U)) {
|
|
GST_ERROR_OBJECT (qtdemux, "invalid box size");
|
|
return FALSE;
|
|
}
|
|
|
|
sysid_string =
|
|
qtdemux_uuid_bytes_to_string ((const guint8 *) node->data + 12);
|
|
|
|
gst_qtdemux_append_protection_system_id (qtdemux, sysid_string);
|
|
|
|
pssh = gst_buffer_new_memdup (node->data, pssh_size);
|
|
GST_LOG_OBJECT (qtdemux, "cenc pssh size: %" G_GSIZE_FORMAT,
|
|
gst_buffer_get_size (pssh));
|
|
|
|
parent_box_type = QT_FOURCC ((const guint8 *) node->parent->data + 4);
|
|
|
|
/* Push an event containing the pssh box onto the queues of all streams. */
|
|
event = gst_event_new_protection (sysid_string, pssh,
|
|
(parent_box_type == FOURCC_moov) ? "isobmff/moov" : "isobmff/moof");
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
GST_TRACE_OBJECT (qtdemux,
|
|
"adding protection event for stream %s and system %s",
|
|
stream->stream_id, sysid_string);
|
|
g_queue_push_tail (&stream->protection_scheme_event_queue,
|
|
gst_event_ref (event));
|
|
}
|
|
g_free (sysid_string);
|
|
gst_event_unref (event);
|
|
gst_buffer_unref (pssh);
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_moof (GstQTDemux * qtdemux, const guint8 * buffer, guint length,
|
|
guint64 moof_offset, QtDemuxStream * stream)
|
|
{
|
|
GNode *moof_node, *traf_node, *tfhd_node, *trun_node, *tfdt_node, *mfhd_node;
|
|
GNode *uuid_node;
|
|
GstByteReader mfhd_data, trun_data, tfhd_data, tfdt_data;
|
|
GNode *saiz_node, *saio_node, *pssh_node;
|
|
GstByteReader saiz_data, saio_data;
|
|
guint32 ds_size = 0, ds_duration = 0, ds_flags = 0;
|
|
gint64 base_offset, running_offset;
|
|
guint32 frag_num;
|
|
GstClockTime min_dts = GST_CLOCK_TIME_NONE;
|
|
|
|
/* NOTE @stream ignored */
|
|
|
|
moof_node = g_node_new ((guint8 *) buffer);
|
|
qtdemux_parse_node (qtdemux, moof_node, buffer, length);
|
|
qtdemux_node_dump (qtdemux, moof_node);
|
|
|
|
/* Get fragment number from mfhd and check it's valid */
|
|
mfhd_node =
|
|
qtdemux_tree_get_child_by_type_full (moof_node, FOURCC_mfhd, &mfhd_data);
|
|
if (mfhd_node == NULL)
|
|
goto missing_mfhd;
|
|
if (!qtdemux_parse_mfhd (qtdemux, &mfhd_data, &frag_num))
|
|
goto fail;
|
|
GST_DEBUG_OBJECT (qtdemux, "Fragment #%d", frag_num);
|
|
|
|
/* unknown base_offset to start with */
|
|
base_offset = running_offset = -1;
|
|
traf_node = qtdemux_tree_get_child_by_type (moof_node, FOURCC_traf);
|
|
while (traf_node) {
|
|
guint64 decode_time = 0;
|
|
|
|
/* Fragment Header node */
|
|
tfhd_node =
|
|
qtdemux_tree_get_child_by_type_full (traf_node, FOURCC_tfhd,
|
|
&tfhd_data);
|
|
if (!tfhd_node)
|
|
goto missing_tfhd;
|
|
if (!qtdemux_parse_tfhd (qtdemux, &tfhd_data, &stream, &ds_duration,
|
|
&ds_size, &ds_flags, &base_offset))
|
|
goto missing_tfhd;
|
|
|
|
/* The following code assumes at most a single set of sample auxiliary
|
|
* data in the fragment (consisting of a saiz box and a corresponding saio
|
|
* box); in theory, however, there could be multiple sets of sample
|
|
* auxiliary data in a fragment. */
|
|
saiz_node =
|
|
qtdemux_tree_get_child_by_type_full (traf_node, FOURCC_saiz,
|
|
&saiz_data);
|
|
if (saiz_node) {
|
|
guint32 info_type = 0;
|
|
guint64 offset = 0;
|
|
guint32 info_type_parameter = 0;
|
|
|
|
g_free (qtdemux->cenc_aux_info_sizes);
|
|
|
|
qtdemux->cenc_aux_info_sizes =
|
|
qtdemux_parse_saiz (qtdemux, stream, &saiz_data,
|
|
&qtdemux->cenc_aux_sample_count);
|
|
if (qtdemux->cenc_aux_info_sizes == NULL) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to parse saiz box");
|
|
goto fail;
|
|
}
|
|
saio_node =
|
|
qtdemux_tree_get_child_by_type_full (traf_node, FOURCC_saio,
|
|
&saio_data);
|
|
if (!saio_node) {
|
|
GST_ERROR_OBJECT (qtdemux, "saiz box without a corresponding saio box");
|
|
g_free (qtdemux->cenc_aux_info_sizes);
|
|
qtdemux->cenc_aux_info_sizes = NULL;
|
|
goto fail;
|
|
}
|
|
|
|
if (G_UNLIKELY (!qtdemux_parse_saio (qtdemux, stream, &saio_data,
|
|
&info_type, &info_type_parameter, &offset))) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to parse saio box");
|
|
g_free (qtdemux->cenc_aux_info_sizes);
|
|
qtdemux->cenc_aux_info_sizes = NULL;
|
|
goto fail;
|
|
}
|
|
if (base_offset > -1 && base_offset > qtdemux->moof_offset)
|
|
offset += (guint64) (base_offset - qtdemux->moof_offset);
|
|
if ((info_type == FOURCC_cenc || info_type == FOURCC_cbcs)
|
|
&& info_type_parameter == 0U) {
|
|
GstByteReader br;
|
|
if (offset > length) {
|
|
GST_DEBUG_OBJECT (qtdemux, "cenc auxiliary info stored out of moof");
|
|
qtdemux->cenc_aux_info_offset = offset;
|
|
} else {
|
|
gst_byte_reader_init (&br, buffer + offset, length - offset);
|
|
if (!qtdemux_parse_cenc_aux_info (qtdemux, stream, &br,
|
|
qtdemux->cenc_aux_info_sizes,
|
|
qtdemux->cenc_aux_sample_count)) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to parse cenc auxiliary info");
|
|
g_free (qtdemux->cenc_aux_info_sizes);
|
|
qtdemux->cenc_aux_info_sizes = NULL;
|
|
goto fail;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
tfdt_node =
|
|
qtdemux_tree_get_child_by_type_full (traf_node, FOURCC_tfdt,
|
|
&tfdt_data);
|
|
if (tfdt_node) {
|
|
/* We'll use decode_time to interpolate timestamps
|
|
* in case the input timestamps are missing */
|
|
qtdemux_parse_tfdt (qtdemux, &tfdt_data, &decode_time);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "decode time %" G_GINT64_FORMAT
|
|
" (%" GST_TIME_FORMAT ")", decode_time,
|
|
GST_TIME_ARGS (stream ? QTSTREAMTIME_TO_GSTTIME (stream,
|
|
decode_time) : GST_CLOCK_TIME_NONE));
|
|
|
|
/* Discard the fragment buffer timestamp info to avoid using it.
|
|
* Rely on tfdt instead as it is more accurate than the timestamp
|
|
* that is fetched from a manifest/playlist and is usually
|
|
* less accurate. */
|
|
qtdemux->fragment_start = -1;
|
|
}
|
|
|
|
if (G_UNLIKELY (!stream)) {
|
|
/* we lost track of offset, we'll need to regain it,
|
|
* but can delay complaining until later or avoid doing so altogether */
|
|
base_offset = -2;
|
|
goto next;
|
|
}
|
|
if (G_UNLIKELY (base_offset < -1))
|
|
goto lost_offset;
|
|
|
|
min_dts = MIN (min_dts, QTSTREAMTIME_TO_GSTTIME (stream, decode_time));
|
|
|
|
if (!qtdemux->pullbased) {
|
|
/* Sample tables can grow enough to be problematic if the system memory
|
|
* is very low (e.g. embedded devices) and the videos very long
|
|
* (~8 MiB/hour for 25-30 fps video + typical AAC audio frames).
|
|
* Fortunately, we can easily discard them for each new fragment when
|
|
* we know qtdemux will not receive seeks outside of the current fragment.
|
|
* adaptivedemux honors this assumption.
|
|
* This optimization is also useful for applications that use qtdemux as
|
|
* a push-based simple demuxer, like Media Source Extensions. */
|
|
gst_qtdemux_stream_flush_samples_data (stream);
|
|
}
|
|
|
|
/* initialise moof sample data */
|
|
stream->n_samples_moof = 0;
|
|
stream->duration_last_moof = stream->duration_moof;
|
|
stream->duration_moof = 0;
|
|
|
|
/* Track Run node */
|
|
trun_node =
|
|
qtdemux_tree_get_child_by_type_full (traf_node, FOURCC_trun,
|
|
&trun_data);
|
|
while (trun_node) {
|
|
qtdemux_parse_trun (qtdemux, &trun_data, stream,
|
|
ds_duration, ds_size, ds_flags, moof_offset, length, &base_offset,
|
|
&running_offset, decode_time, (tfdt_node != NULL));
|
|
/* iterate all siblings */
|
|
trun_node = qtdemux_tree_get_sibling_by_type_full (trun_node, FOURCC_trun,
|
|
&trun_data);
|
|
/* don't use tfdt for subsequent trun as it only refers to the first */
|
|
tfdt_node = NULL;
|
|
}
|
|
|
|
uuid_node = qtdemux_tree_get_child_by_type (traf_node, FOURCC_uuid);
|
|
if (uuid_node) {
|
|
guint8 *uuid_buffer = (guint8 *) uuid_node->data;
|
|
guint32 box_length = QT_UINT32 (uuid_buffer);
|
|
|
|
qtdemux_parse_uuid (qtdemux, uuid_buffer, box_length);
|
|
}
|
|
|
|
/* if no new base_offset provided for next traf,
|
|
* base is end of current traf */
|
|
base_offset = running_offset;
|
|
running_offset = -1;
|
|
|
|
if (stream->n_samples_moof && stream->duration_moof)
|
|
stream->new_caps = TRUE;
|
|
|
|
next:
|
|
/* iterate all siblings */
|
|
traf_node = qtdemux_tree_get_sibling_by_type (traf_node, FOURCC_traf);
|
|
}
|
|
|
|
/* parse any protection system info */
|
|
pssh_node = qtdemux_tree_get_child_by_type (moof_node, FOURCC_pssh);
|
|
if (pssh_node) {
|
|
/* Unref old protection events if we are going to receive new ones. */
|
|
qtdemux_clear_protection_events_on_all_streams (qtdemux);
|
|
}
|
|
while (pssh_node) {
|
|
GST_LOG_OBJECT (qtdemux, "Parsing pssh box.");
|
|
qtdemux_parse_pssh (qtdemux, pssh_node);
|
|
pssh_node = qtdemux_tree_get_sibling_by_type (pssh_node, FOURCC_pssh);
|
|
}
|
|
|
|
if (!qtdemux->upstream_format_is_time
|
|
&& qtdemux->variant != VARIANT_MSE_BYTESTREAM
|
|
&& !qtdemux->first_moof_already_parsed
|
|
&& !qtdemux->received_seek && GST_CLOCK_TIME_IS_VALID (min_dts)
|
|
&& min_dts != 0) {
|
|
/* Unless the user has explicitly requested another seek, perform an
|
|
* internal seek to the time specified in the tfdt.
|
|
*
|
|
* This way if the user opens a file where the first tfdt is 1 hour
|
|
* into the presentation, they will not have to wait 1 hour for run
|
|
* time to catch up and actual playback to start. */
|
|
gint i;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "First fragment has a non-zero tfdt, "
|
|
"performing an internal seek to %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (min_dts));
|
|
|
|
qtdemux->segment.start = min_dts;
|
|
qtdemux->segment.time = qtdemux->segment.position = min_dts;
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
stream->time_position = min_dts;
|
|
}
|
|
|
|
/* Before this code was run a segment was already sent when the moov was
|
|
* parsed... which is OK -- some apps (mostly tests) expect a segment to
|
|
* be emitted after a moov, and we can emit a second segment anyway for
|
|
* special cases like this. */
|
|
qtdemux->need_segment = TRUE;
|
|
}
|
|
|
|
qtdemux->first_moof_already_parsed = TRUE;
|
|
|
|
g_node_destroy (moof_node);
|
|
return TRUE;
|
|
|
|
missing_tfhd:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "missing tfhd box");
|
|
goto fail;
|
|
}
|
|
missing_mfhd:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "Missing mfhd box");
|
|
goto fail;
|
|
}
|
|
lost_offset:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "lost offset");
|
|
goto fail;
|
|
}
|
|
fail:
|
|
{
|
|
g_node_destroy (moof_node);
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("This file is corrupt and cannot be played.")), (NULL));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
#if 0
|
|
/* might be used if some day we actually use mfra & co
|
|
* for random access to fragments,
|
|
* but that will require quite some modifications and much less relying
|
|
* on a sample array */
|
|
#endif
|
|
|
|
static gboolean
|
|
qtdemux_parse_tfra (GstQTDemux * qtdemux, GNode * tfra_node)
|
|
{
|
|
QtDemuxStream *stream;
|
|
guint32 ver_flags, track_id, len, num_entries, i;
|
|
guint value_size, traf_size, trun_size, sample_size;
|
|
guint64 time = 0, moof_offset = 0;
|
|
#if 0
|
|
GstBuffer *buf = NULL;
|
|
GstFlowReturn ret;
|
|
#endif
|
|
GstByteReader tfra;
|
|
|
|
gst_byte_reader_init (&tfra, tfra_node->data, QT_UINT32 (tfra_node->data));
|
|
|
|
if (!gst_byte_reader_skip (&tfra, 8))
|
|
return FALSE;
|
|
|
|
if (!gst_byte_reader_get_uint32_be (&tfra, &ver_flags))
|
|
return FALSE;
|
|
|
|
if (!gst_byte_reader_get_uint32_be (&tfra, &track_id)
|
|
|| !gst_byte_reader_get_uint32_be (&tfra, &len)
|
|
|| !gst_byte_reader_get_uint32_be (&tfra, &num_entries))
|
|
return FALSE;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing tfra box for track id %u", track_id);
|
|
|
|
stream = qtdemux_find_stream (qtdemux, track_id);
|
|
if (stream == NULL)
|
|
goto unknown_trackid;
|
|
|
|
value_size = ((ver_flags >> 24) == 1) ? sizeof (guint64) : sizeof (guint32);
|
|
sample_size = (len & 3) + 1;
|
|
trun_size = ((len & 12) >> 2) + 1;
|
|
traf_size = ((len & 48) >> 4) + 1;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "%u entries, sizes: value %u, traf %u, trun %u, "
|
|
"sample %u", num_entries, value_size, traf_size, trun_size, sample_size);
|
|
|
|
if (num_entries == 0)
|
|
goto no_samples;
|
|
|
|
if (!qt_atom_parser_has_chunks (&tfra, num_entries,
|
|
value_size + value_size + traf_size + trun_size + sample_size))
|
|
goto corrupt_file;
|
|
|
|
g_free (stream->ra_entries);
|
|
stream->ra_entries = g_new (QtDemuxRandomAccessEntry, num_entries);
|
|
stream->n_ra_entries = num_entries;
|
|
|
|
for (i = 0; i < num_entries; i++) {
|
|
qt_atom_parser_get_offset (&tfra, value_size, &time);
|
|
qt_atom_parser_get_offset (&tfra, value_size, &moof_offset);
|
|
qt_atom_parser_get_uint_with_size_unchecked (&tfra, traf_size);
|
|
qt_atom_parser_get_uint_with_size_unchecked (&tfra, trun_size);
|
|
qt_atom_parser_get_uint_with_size_unchecked (&tfra, sample_size);
|
|
|
|
time = QTSTREAMTIME_TO_GSTTIME (stream, time);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "fragment time: %" GST_TIME_FORMAT ", "
|
|
" moof_offset: %" G_GUINT64_FORMAT, GST_TIME_ARGS (time), moof_offset);
|
|
|
|
stream->ra_entries[i].ts = time;
|
|
stream->ra_entries[i].moof_offset = moof_offset;
|
|
|
|
/* don't want to go through the entire file and read all moofs at startup */
|
|
#if 0
|
|
ret = gst_qtdemux_pull_atom (qtdemux, moof_offset, 0, &buf);
|
|
if (ret != GST_FLOW_OK)
|
|
goto corrupt_file;
|
|
qtdemux_parse_moof (qtdemux, GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf),
|
|
moof_offset, stream);
|
|
gst_buffer_unref (buf);
|
|
#endif
|
|
}
|
|
|
|
check_update_duration (qtdemux, time);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
unknown_trackid:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "Couldn't find stream for track %u", track_id);
|
|
return FALSE;
|
|
}
|
|
corrupt_file:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "broken traf box, ignoring");
|
|
return FALSE;
|
|
}
|
|
no_samples:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "stream has no samples");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_pull_mfro_mfra (GstQTDemux * qtdemux)
|
|
{
|
|
GstMapInfo mfro_map = GST_MAP_INFO_INIT;
|
|
GstMapInfo mfra_map = GST_MAP_INFO_INIT;
|
|
GstBuffer *mfro = NULL, *mfra = NULL;
|
|
GstFlowReturn flow;
|
|
gboolean ret = FALSE;
|
|
GNode *mfra_node, *tfra_node;
|
|
guint64 mfra_offset = 0;
|
|
guint32 fourcc, mfra_size;
|
|
gint64 len;
|
|
|
|
/* query upstream size in bytes */
|
|
if (!gst_pad_peer_query_duration (qtdemux->sinkpad, GST_FORMAT_BYTES, &len))
|
|
goto size_query_failed;
|
|
|
|
/* mfro box should be at the very end of the file */
|
|
flow = gst_qtdemux_pull_atom (qtdemux, len - 16, 16, &mfro);
|
|
if (flow != GST_FLOW_OK)
|
|
goto exit;
|
|
|
|
gst_buffer_map (mfro, &mfro_map, GST_MAP_READ);
|
|
|
|
fourcc = QT_FOURCC (mfro_map.data + 4);
|
|
if (fourcc != FOURCC_mfro)
|
|
goto exit;
|
|
|
|
GST_INFO_OBJECT (qtdemux, "Found mfro box");
|
|
if (mfro_map.size < 16)
|
|
goto invalid_mfro_size;
|
|
|
|
mfra_size = QT_UINT32 (mfro_map.data + 12);
|
|
if (mfra_size >= len)
|
|
goto invalid_mfra_size;
|
|
|
|
mfra_offset = len - mfra_size;
|
|
|
|
GST_INFO_OBJECT (qtdemux, "mfra offset: %" G_GUINT64_FORMAT ", size %u",
|
|
mfra_offset, mfra_size);
|
|
|
|
/* now get and parse mfra box */
|
|
flow = gst_qtdemux_pull_atom (qtdemux, mfra_offset, mfra_size, &mfra);
|
|
if (flow != GST_FLOW_OK)
|
|
goto broken_file;
|
|
|
|
gst_buffer_map (mfra, &mfra_map, GST_MAP_READ);
|
|
|
|
mfra_node = g_node_new ((guint8 *) mfra_map.data);
|
|
qtdemux_parse_node (qtdemux, mfra_node, mfra_map.data, mfra_map.size);
|
|
|
|
tfra_node = qtdemux_tree_get_child_by_type (mfra_node, FOURCC_tfra);
|
|
|
|
while (tfra_node) {
|
|
qtdemux_parse_tfra (qtdemux, tfra_node);
|
|
/* iterate all siblings */
|
|
tfra_node = qtdemux_tree_get_sibling_by_type (tfra_node, FOURCC_tfra);
|
|
}
|
|
g_node_destroy (mfra_node);
|
|
|
|
GST_INFO_OBJECT (qtdemux, "parsed movie fragment random access box (mfra)");
|
|
ret = TRUE;
|
|
|
|
exit:
|
|
|
|
if (mfro) {
|
|
if (mfro_map.memory != NULL)
|
|
gst_buffer_unmap (mfro, &mfro_map);
|
|
gst_buffer_unref (mfro);
|
|
}
|
|
if (mfra) {
|
|
if (mfra_map.memory != NULL)
|
|
gst_buffer_unmap (mfra, &mfra_map);
|
|
gst_buffer_unref (mfra);
|
|
}
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
size_query_failed:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "could not query upstream size");
|
|
goto exit;
|
|
}
|
|
invalid_mfro_size:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "mfro size is too small");
|
|
goto exit;
|
|
}
|
|
invalid_mfra_size:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "mfra_size in mfro box is invalid");
|
|
goto exit;
|
|
}
|
|
broken_file:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "bogus mfra offset or size, broken file");
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
static guint64
|
|
add_offset (guint64 offset, guint64 advance)
|
|
{
|
|
/* Avoid 64-bit overflow by clamping */
|
|
if (offset > G_MAXUINT64 - advance)
|
|
return G_MAXUINT64;
|
|
return offset + advance;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_qtdemux_loop_state_header (GstQTDemux * qtdemux)
|
|
{
|
|
guint64 length = 0;
|
|
guint32 fourcc = 0;
|
|
GstBuffer *buf = NULL;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
guint64 cur_offset = qtdemux->offset;
|
|
GstMapInfo map;
|
|
|
|
ret = gst_pad_pull_range (qtdemux->sinkpad, cur_offset, 16, &buf);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
|
goto beach;
|
|
gst_buffer_map (buf, &map, GST_MAP_READ);
|
|
if (G_LIKELY (map.size >= 8))
|
|
extract_initial_length_and_fourcc (map.data, map.size, &length, &fourcc);
|
|
gst_buffer_unmap (buf, &map);
|
|
gst_buffer_unref (buf);
|
|
|
|
/* maybe we already got most we needed, so only consider this eof */
|
|
if (G_UNLIKELY (length == 0)) {
|
|
GST_ELEMENT_WARNING (qtdemux, STREAM, DEMUX,
|
|
(_("Invalid atom size.")),
|
|
("Header atom '%" GST_FOURCC_FORMAT "' has empty length",
|
|
GST_FOURCC_ARGS (fourcc)));
|
|
ret = GST_FLOW_EOS;
|
|
goto beach;
|
|
}
|
|
|
|
switch (fourcc) {
|
|
case FOURCC_moof:
|
|
/* record for later parsing when needed */
|
|
if (!qtdemux->moof_offset) {
|
|
qtdemux->moof_offset = qtdemux->offset;
|
|
}
|
|
if (qtdemux_pull_mfro_mfra (qtdemux)) {
|
|
/* FIXME */
|
|
} else {
|
|
qtdemux->offset += length; /* skip moof and keep going */
|
|
}
|
|
if (qtdemux->got_moov) {
|
|
GST_INFO_OBJECT (qtdemux, "moof header, got moov, done with headers");
|
|
ret = GST_FLOW_EOS;
|
|
goto beach;
|
|
}
|
|
break;
|
|
case FOURCC_mdat:
|
|
case FOURCC_free:
|
|
case FOURCC_skip:
|
|
case FOURCC_wide:
|
|
case FOURCC_PICT:
|
|
case FOURCC_pnot:
|
|
{
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"skipping atom '%" GST_FOURCC_FORMAT "' at %" G_GUINT64_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc), cur_offset);
|
|
qtdemux->offset = add_offset (qtdemux->offset, length);
|
|
break;
|
|
}
|
|
case FOURCC_moov:
|
|
{
|
|
GstBuffer *moov = NULL;
|
|
|
|
if (qtdemux->got_moov) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Skipping moov atom as we have one already");
|
|
qtdemux->offset = add_offset (qtdemux->offset, length);
|
|
goto beach;
|
|
}
|
|
|
|
if (length == G_MAXUINT64) {
|
|
/* Read until the end */
|
|
gint64 duration;
|
|
if (!gst_pad_peer_query_duration (qtdemux->sinkpad, GST_FORMAT_BYTES,
|
|
&duration)) {
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("Cannot query file size")),
|
|
("Duration query on sink pad failed"));
|
|
ret = GST_FLOW_ERROR;
|
|
goto beach;
|
|
}
|
|
if (G_UNLIKELY (cur_offset > duration)) {
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("Cannot query file size")),
|
|
("Duration %" G_GINT64_FORMAT " < current offset %"
|
|
G_GUINT64_FORMAT, duration, cur_offset));
|
|
ret = GST_FLOW_ERROR;
|
|
goto beach;
|
|
}
|
|
length = duration - cur_offset;
|
|
if (length > QTDEMUX_MAX_ATOM_SIZE) {
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("Cannot demux file")),
|
|
("Moov atom size %" G_GINT64_FORMAT " > maximum %d", length,
|
|
QTDEMUX_MAX_ATOM_SIZE));
|
|
ret = GST_FLOW_ERROR;
|
|
goto beach;
|
|
}
|
|
}
|
|
|
|
ret = gst_pad_pull_range (qtdemux->sinkpad, cur_offset, length, &moov);
|
|
if (ret != GST_FLOW_OK)
|
|
goto beach;
|
|
gst_buffer_map (moov, &map, GST_MAP_READ);
|
|
|
|
if (length != map.size) {
|
|
/* Some files have a 'moov' atom at the end of the file which contains
|
|
* a terminal 'free' atom where the body of the atom is missing.
|
|
* Check for, and permit, this special case.
|
|
*/
|
|
if (map.size >= 8) {
|
|
guint8 *final_data = map.data + (map.size - 8);
|
|
guint32 final_length = QT_UINT32 (final_data);
|
|
guint32 final_fourcc = QT_FOURCC (final_data + 4);
|
|
|
|
if (final_fourcc == FOURCC_free
|
|
&& map.size + final_length - 8 == length) {
|
|
/* Ok, we've found that special case. Allocate a new buffer with
|
|
* that free atom actually present. */
|
|
GstBuffer *newmoov = gst_buffer_new_and_alloc (length);
|
|
gst_buffer_fill (newmoov, 0, map.data, map.size);
|
|
gst_buffer_memset (newmoov, map.size, 0, final_length - 8);
|
|
gst_buffer_unmap (moov, &map);
|
|
gst_buffer_unref (moov);
|
|
moov = newmoov;
|
|
gst_buffer_map (moov, &map, GST_MAP_READ);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (length != map.size) {
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("This file is incomplete and cannot be played.")),
|
|
("We got less than expected (received %" G_GSIZE_FORMAT
|
|
", wanted %" G_GUINT64_FORMAT ", offset %" G_GUINT64_FORMAT ")",
|
|
map.size, length, cur_offset));
|
|
gst_buffer_unmap (moov, &map);
|
|
gst_buffer_unref (moov);
|
|
ret = GST_FLOW_ERROR;
|
|
goto beach;
|
|
}
|
|
qtdemux->offset += length;
|
|
|
|
qtdemux_parse_moov (qtdemux, map.data, length);
|
|
qtdemux_node_dump (qtdemux, qtdemux->moov_node);
|
|
|
|
qtdemux_parse_tree (qtdemux);
|
|
if (qtdemux->moov_node_compressed) {
|
|
g_node_destroy (qtdemux->moov_node_compressed);
|
|
g_free (qtdemux->moov_node->data);
|
|
}
|
|
qtdemux->moov_node_compressed = NULL;
|
|
g_node_destroy (qtdemux->moov_node);
|
|
qtdemux->moov_node = NULL;
|
|
gst_buffer_unmap (moov, &map);
|
|
gst_buffer_unref (moov);
|
|
qtdemux->got_moov = TRUE;
|
|
|
|
break;
|
|
}
|
|
case FOURCC_ftyp:
|
|
{
|
|
GstBuffer *ftyp = NULL;
|
|
|
|
/* extract major brand; might come in handy for ISO vs QT issues */
|
|
ret = gst_qtdemux_pull_atom (qtdemux, cur_offset, length, &ftyp);
|
|
if (ret != GST_FLOW_OK)
|
|
goto beach;
|
|
qtdemux->offset += length;
|
|
gst_buffer_map (ftyp, &map, GST_MAP_READ);
|
|
qtdemux_parse_ftyp (qtdemux, map.data, map.size);
|
|
gst_buffer_unmap (ftyp, &map);
|
|
gst_buffer_unref (ftyp);
|
|
break;
|
|
}
|
|
case FOURCC_styp:
|
|
{
|
|
GstBuffer *styp = NULL;
|
|
|
|
ret = gst_qtdemux_pull_atom (qtdemux, cur_offset, length, &styp);
|
|
if (ret != GST_FLOW_OK)
|
|
goto beach;
|
|
qtdemux->offset += length;
|
|
gst_buffer_map (styp, &map, GST_MAP_READ);
|
|
qtdemux_parse_styp (qtdemux, map.data, map.size);
|
|
gst_buffer_unmap (styp, &map);
|
|
gst_buffer_unref (styp);
|
|
break;
|
|
}
|
|
case FOURCC_uuid:
|
|
{
|
|
GstBuffer *uuid = NULL;
|
|
|
|
/* uuid are extension atoms */
|
|
ret = gst_qtdemux_pull_atom (qtdemux, cur_offset, length, &uuid);
|
|
if (ret != GST_FLOW_OK)
|
|
goto beach;
|
|
qtdemux->offset += length;
|
|
gst_buffer_map (uuid, &map, GST_MAP_READ);
|
|
qtdemux_parse_uuid (qtdemux, map.data, map.size);
|
|
gst_buffer_unmap (uuid, &map);
|
|
gst_buffer_unref (uuid);
|
|
break;
|
|
}
|
|
case FOURCC_sidx:
|
|
{
|
|
GstBuffer *sidx = NULL;
|
|
ret = gst_qtdemux_pull_atom (qtdemux, cur_offset, length, &sidx);
|
|
if (ret != GST_FLOW_OK)
|
|
goto beach;
|
|
qtdemux->offset += length;
|
|
gst_buffer_map (sidx, &map, GST_MAP_READ);
|
|
qtdemux_parse_sidx (qtdemux, map.data, map.size);
|
|
gst_buffer_unmap (sidx, &map);
|
|
gst_buffer_unref (sidx);
|
|
break;
|
|
}
|
|
case FOURCC_meta:
|
|
{
|
|
GstBuffer *meta = NULL;
|
|
GNode *node, *child;
|
|
GstByteReader child_data;
|
|
ret = gst_qtdemux_pull_atom (qtdemux, cur_offset, length, &meta);
|
|
if (ret != GST_FLOW_OK)
|
|
goto beach;
|
|
qtdemux->offset += length;
|
|
gst_buffer_map (meta, &map, GST_MAP_READ);
|
|
|
|
node = g_node_new (map.data);
|
|
|
|
qtdemux_parse_node (qtdemux, node, map.data, map.size);
|
|
|
|
/* Parse ONVIF Export File Format CorrectStartTime box if available */
|
|
if ((child =
|
|
qtdemux_tree_get_child_by_type_full (node, FOURCC_cstb,
|
|
&child_data))) {
|
|
qtdemux_parse_cstb (qtdemux, &child_data);
|
|
}
|
|
|
|
g_node_destroy (node);
|
|
|
|
gst_buffer_unmap (meta, &map);
|
|
gst_buffer_unref (meta);
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
GstBuffer *unknown = NULL;
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"unknown %08x '%" GST_FOURCC_FORMAT "' of size %" G_GUINT64_FORMAT
|
|
" at %" G_GUINT64_FORMAT, fourcc, GST_FOURCC_ARGS (fourcc), length,
|
|
cur_offset);
|
|
ret = gst_qtdemux_pull_atom (qtdemux, cur_offset, length, &unknown);
|
|
if (ret != GST_FLOW_OK)
|
|
goto beach;
|
|
gst_buffer_map (unknown, &map, GST_MAP_READ);
|
|
GST_MEMDUMP ("Unknown tag", map.data, map.size);
|
|
gst_buffer_unmap (unknown, &map);
|
|
gst_buffer_unref (unknown);
|
|
qtdemux->offset += length;
|
|
break;
|
|
}
|
|
}
|
|
|
|
beach:
|
|
if (ret == GST_FLOW_EOS && (qtdemux->got_moov || qtdemux->media_caps)) {
|
|
/* digested all data, show what we have */
|
|
qtdemux_prepare_streams (qtdemux);
|
|
QTDEMUX_EXPOSE_LOCK (qtdemux);
|
|
ret = qtdemux_expose_streams (qtdemux);
|
|
QTDEMUX_EXPOSE_UNLOCK (qtdemux);
|
|
|
|
qtdemux->state = QTDEMUX_STATE_MOVIE;
|
|
GST_DEBUG_OBJECT (qtdemux, "switching state to STATE_MOVIE (%d)",
|
|
qtdemux->state);
|
|
return ret;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
/* Seeks to the previous keyframe of the indexed stream and
|
|
* aligns other streams with respect to the keyframe timestamp
|
|
* of indexed stream. Only called in case of Reverse Playback
|
|
*/
|
|
static GstFlowReturn
|
|
gst_qtdemux_seek_to_previous_keyframe (GstQTDemux * qtdemux)
|
|
{
|
|
guint32 seg_idx = 0, k_index = 0;
|
|
guint32 ref_seg_idx, ref_k_index;
|
|
GstClockTime k_pos = 0, last_stop = 0;
|
|
QtDemuxSegment *seg = NULL;
|
|
QtDemuxStream *ref_str = NULL;
|
|
guint64 seg_media_start_mov; /* segment media start time in mov format */
|
|
guint64 target_ts;
|
|
gint i;
|
|
|
|
/* Now we choose an arbitrary stream, get the previous keyframe timestamp
|
|
* and finally align all the other streams on that timestamp with their
|
|
* respective keyframes */
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *str = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
|
|
/* No candidate yet, take the first stream */
|
|
if (!ref_str) {
|
|
ref_str = str;
|
|
continue;
|
|
}
|
|
|
|
/* So that stream has a segment, we prefer video streams */
|
|
if (str->subtype == FOURCC_vide) {
|
|
ref_str = str;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (G_UNLIKELY (!ref_str)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "couldn't find any stream");
|
|
goto eos;
|
|
}
|
|
|
|
if (G_UNLIKELY (!ref_str->from_sample)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "reached the beginning of the file");
|
|
goto eos;
|
|
}
|
|
|
|
/* So that stream has been playing from from_sample to to_sample. We will
|
|
* get the timestamp of the previous sample and search for a keyframe before
|
|
* that. For audio streams we do an arbitrary jump in the past (10 samples) */
|
|
if (ref_str->subtype == FOURCC_vide) {
|
|
k_index = gst_qtdemux_find_keyframe (qtdemux, ref_str,
|
|
ref_str->from_sample - 1, FALSE);
|
|
} else {
|
|
if (ref_str->from_sample >= 10)
|
|
k_index = ref_str->from_sample - 10;
|
|
else
|
|
k_index = 0;
|
|
}
|
|
|
|
target_ts =
|
|
ref_str->samples[k_index].timestamp +
|
|
ref_str->samples[k_index].pts_offset;
|
|
|
|
/* get current segment for that stream */
|
|
seg = &ref_str->segments[ref_str->segment_index];
|
|
/* Use segment start in original timescale for comparisons */
|
|
seg_media_start_mov = seg->trak_media_start;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "keyframe index %u ts %" G_GUINT64_FORMAT
|
|
" seg start %" G_GUINT64_FORMAT " %" GST_TIME_FORMAT,
|
|
k_index, target_ts, seg_media_start_mov,
|
|
GST_TIME_ARGS (seg->media_start));
|
|
|
|
/* Crawl back through segments to find the one containing this I frame */
|
|
while (target_ts < seg_media_start_mov) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"keyframe position (sample %u) is out of segment %u " " target %"
|
|
G_GUINT64_FORMAT " seg start %" G_GUINT64_FORMAT, k_index,
|
|
ref_str->segment_index, target_ts, seg_media_start_mov);
|
|
|
|
if (G_UNLIKELY (!ref_str->segment_index)) {
|
|
/* Reached first segment, let's consider it's EOS */
|
|
goto eos;
|
|
}
|
|
ref_str->segment_index--;
|
|
seg = &ref_str->segments[ref_str->segment_index];
|
|
/* Use segment start in original timescale for comparisons */
|
|
seg_media_start_mov = seg->trak_media_start;
|
|
}
|
|
/* Calculate time position of the keyframe and where we should stop */
|
|
k_pos =
|
|
QTSTREAMTIME_TO_GSTTIME (ref_str,
|
|
target_ts - seg->trak_media_start) + seg->time;
|
|
last_stop =
|
|
QTSTREAMTIME_TO_GSTTIME (ref_str,
|
|
ref_str->samples[ref_str->from_sample].timestamp -
|
|
seg->trak_media_start) + seg->time;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "preferred stream played from sample %u, "
|
|
"now going to sample %u (pts %" GST_TIME_FORMAT ")", ref_str->from_sample,
|
|
k_index, GST_TIME_ARGS (k_pos));
|
|
|
|
/* Set last_stop with the keyframe timestamp we pushed of that stream */
|
|
qtdemux->segment.position = last_stop;
|
|
GST_DEBUG_OBJECT (qtdemux, "last_stop now is %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (last_stop));
|
|
|
|
if (G_UNLIKELY (last_stop < qtdemux->segment.start)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "reached the beginning of segment");
|
|
goto eos;
|
|
}
|
|
|
|
ref_seg_idx = ref_str->segment_index;
|
|
ref_k_index = k_index;
|
|
|
|
/* Align them all on this */
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
guint32 index = 0;
|
|
GstClockTime seg_time = 0;
|
|
QtDemuxStream *str = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
|
|
/* aligning reference stream again might lead to backing up to yet another
|
|
* keyframe (due to timestamp rounding issues),
|
|
* potentially putting more load on downstream; so let's try to avoid */
|
|
if (str == ref_str) {
|
|
seg_idx = ref_seg_idx;
|
|
seg = &str->segments[seg_idx];
|
|
k_index = ref_k_index;
|
|
GST_DEBUG_OBJECT (qtdemux, "reference track-id %u segment %d, "
|
|
"sample at index %d", str->track_id, ref_str->segment_index, k_index);
|
|
} else {
|
|
seg_idx = gst_qtdemux_find_segment (qtdemux, str, k_pos);
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"track-id %u align segment %d for keyframe pos %" GST_TIME_FORMAT,
|
|
str->track_id, seg_idx, GST_TIME_ARGS (k_pos));
|
|
|
|
/* get segment and time in the segment */
|
|
seg = &str->segments[seg_idx];
|
|
seg_time = k_pos - seg->time;
|
|
|
|
/* get the media time in the segment.
|
|
* No adjustment for empty "filler" segments */
|
|
if (seg->media_start != GST_CLOCK_TIME_NONE)
|
|
seg_time += seg->media_start;
|
|
|
|
/* get the index of the sample with media time */
|
|
index = gst_qtdemux_find_index_linear (qtdemux, str, seg_time);
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"track-id %u sample for %" GST_TIME_FORMAT " at %u", str->track_id,
|
|
GST_TIME_ARGS (seg_time), index);
|
|
|
|
/* find previous keyframe */
|
|
k_index = gst_qtdemux_find_keyframe (qtdemux, str, index, FALSE);
|
|
}
|
|
|
|
/* Remember until where we want to go */
|
|
if (str->from_sample == 0) {
|
|
GST_LOG_OBJECT (qtdemux, "already at sample 0");
|
|
str->to_sample = 0;
|
|
} else {
|
|
str->to_sample = str->from_sample - 1;
|
|
}
|
|
/* Define our time position */
|
|
target_ts =
|
|
str->samples[k_index].timestamp + str->samples[k_index].pts_offset;
|
|
str->time_position = QTSTREAMTIME_TO_GSTTIME (str, target_ts) + seg->time;
|
|
if (seg->media_start != GST_CLOCK_TIME_NONE)
|
|
str->time_position -= seg->media_start;
|
|
|
|
/* Now seek back in time */
|
|
gst_qtdemux_move_stream (qtdemux, str, k_index);
|
|
GST_DEBUG_OBJECT (qtdemux, "track-id %u keyframe at %u, time position %"
|
|
GST_TIME_FORMAT " playing from sample %u to %u", str->track_id, k_index,
|
|
GST_TIME_ARGS (str->time_position), str->from_sample, str->to_sample);
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
eos:
|
|
return GST_FLOW_EOS;
|
|
}
|
|
|
|
/*
|
|
* Gets the current qt segment start, stop and position for the
|
|
* given time offset. This is used in update_segment()
|
|
*/
|
|
static void
|
|
gst_qtdemux_stream_segment_get_boundaries (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream, GstClockTime offset,
|
|
GstClockTime * _start, GstClockTime * _stop, GstClockTime * _time)
|
|
{
|
|
GstClockTime seg_time;
|
|
GstClockTime start, stop, time;
|
|
QtDemuxSegment *segment;
|
|
|
|
segment = &stream->segments[stream->segment_index];
|
|
|
|
/* get time in this segment */
|
|
seg_time = (offset - segment->time) * segment->rate;
|
|
|
|
GST_LOG_OBJECT (stream->pad, "seg_time %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (seg_time));
|
|
|
|
if (G_UNLIKELY (seg_time > segment->duration)) {
|
|
GST_LOG_OBJECT (stream->pad,
|
|
"seg_time > segment->duration %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (segment->duration));
|
|
seg_time = segment->duration;
|
|
}
|
|
|
|
/* qtdemux->segment.stop is in outside-time-realm, whereas
|
|
* segment->media_stop is in track-time-realm.
|
|
*
|
|
* In order to compare the two, we need to bring segment.stop
|
|
* into the track-time-realm
|
|
*
|
|
* FIXME - does this comment still hold? Don't see any conversion here */
|
|
|
|
stop = qtdemux->segment.stop;
|
|
if (stop == GST_CLOCK_TIME_NONE)
|
|
stop = qtdemux->segment.duration;
|
|
if (stop == GST_CLOCK_TIME_NONE)
|
|
stop = segment->media_stop;
|
|
else
|
|
stop =
|
|
MIN (segment->media_stop, stop - segment->time + segment->media_start);
|
|
|
|
if (G_UNLIKELY (QTSEGMENT_IS_EMPTY (segment))) {
|
|
start = segment->time + seg_time;
|
|
time = offset;
|
|
stop = start - seg_time + segment->duration;
|
|
} else if (qtdemux->segment.rate >= 0) {
|
|
start = MIN (segment->media_start + seg_time, stop);
|
|
time = offset;
|
|
} else {
|
|
if (segment->media_start >= qtdemux->segment.start) {
|
|
time = segment->time;
|
|
} else {
|
|
time = segment->time + (qtdemux->segment.start - segment->media_start);
|
|
}
|
|
|
|
start = MAX (segment->media_start, qtdemux->segment.start);
|
|
stop = MIN (segment->media_start + seg_time, stop);
|
|
}
|
|
|
|
*_start = start;
|
|
*_stop = stop;
|
|
*_time = time;
|
|
}
|
|
|
|
/*
|
|
* Updates the qt segment used for the stream and pushes a new segment event
|
|
* downstream on this stream's pad.
|
|
*/
|
|
static gboolean
|
|
gst_qtdemux_stream_update_segment (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
gint seg_idx, GstClockTime offset, GstClockTime * _start,
|
|
GstClockTime * _stop)
|
|
{
|
|
QtDemuxSegment *segment;
|
|
GstClockTime start = 0, stop = GST_CLOCK_TIME_NONE, time = 0;
|
|
gdouble rate;
|
|
GstEvent *event;
|
|
|
|
/* update the current segment */
|
|
stream->segment_index = seg_idx;
|
|
|
|
/* get the segment */
|
|
segment = &stream->segments[seg_idx];
|
|
|
|
if (G_UNLIKELY (offset < segment->time)) {
|
|
GST_WARNING_OBJECT (stream->pad, "offset < segment->time %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (segment->time));
|
|
return FALSE;
|
|
}
|
|
|
|
/* segment lies beyond total indicated duration */
|
|
if (G_UNLIKELY (qtdemux->segment.duration != GST_CLOCK_TIME_NONE &&
|
|
segment->time > qtdemux->segment.duration)) {
|
|
GST_WARNING_OBJECT (stream->pad, "file duration %" GST_TIME_FORMAT
|
|
" < segment->time %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (qtdemux->segment.duration),
|
|
GST_TIME_ARGS (segment->time));
|
|
return FALSE;
|
|
}
|
|
|
|
gst_qtdemux_stream_segment_get_boundaries (qtdemux, stream, offset,
|
|
&start, &stop, &time);
|
|
|
|
GST_DEBUG_OBJECT (stream->pad, "new segment %d from %" GST_TIME_FORMAT
|
|
" to %" GST_TIME_FORMAT ", time %" GST_TIME_FORMAT, seg_idx,
|
|
GST_TIME_ARGS (start), GST_TIME_ARGS (stop), GST_TIME_ARGS (time));
|
|
|
|
/* combine global rate with that of the segment */
|
|
rate = segment->rate * qtdemux->segment.rate;
|
|
|
|
/* Copy flags from main segment */
|
|
stream->segment.flags = qtdemux->segment.flags;
|
|
|
|
/* update the segment values used for clipping */
|
|
stream->segment.offset = qtdemux->segment.offset;
|
|
stream->segment.base = qtdemux->segment.base + stream->accumulated_base;
|
|
stream->segment.applied_rate = qtdemux->segment.applied_rate;
|
|
stream->segment.rate = rate;
|
|
stream->segment.start = start + QTSTREAMTIME_TO_GSTTIME (stream,
|
|
stream->cslg_shift);
|
|
if (stop != -1)
|
|
stream->segment.stop = stop + QTSTREAMTIME_TO_GSTTIME (stream,
|
|
stream->cslg_shift);
|
|
else
|
|
stream->segment.stop = stop;
|
|
stream->segment.time = time;
|
|
stream->segment.position = stream->segment.start;
|
|
|
|
GST_DEBUG_OBJECT (stream->pad, "New segment: %" GST_SEGMENT_FORMAT,
|
|
&stream->segment);
|
|
|
|
/* now prepare and send the segment */
|
|
if (stream->pad) {
|
|
event = gst_event_new_segment (&stream->segment);
|
|
if (qtdemux->segment_seqnum != GST_SEQNUM_INVALID) {
|
|
gst_event_set_seqnum (event, qtdemux->segment_seqnum);
|
|
}
|
|
gst_pad_push_event (stream->pad, event);
|
|
/* assume we can send more data now */
|
|
GST_PAD_LAST_FLOW_RETURN (stream->pad) = GST_FLOW_OK;
|
|
/* clear to send tags on this pad now */
|
|
gst_qtdemux_push_tags (qtdemux, stream);
|
|
}
|
|
|
|
if (_start)
|
|
*_start = start;
|
|
if (_stop)
|
|
*_stop = stop;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* activate the given segment number @seg_idx of @stream at time @offset.
|
|
* @offset is an absolute global position over all the segments.
|
|
*
|
|
* This will push out a NEWSEGMENT event with the right values and
|
|
* position the stream index to the first decodable sample before
|
|
* @offset.
|
|
*/
|
|
static gboolean
|
|
gst_qtdemux_activate_segment (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
guint32 seg_idx, GstClockTime offset)
|
|
{
|
|
QtDemuxSegment *segment;
|
|
guint32 index, kf_index;
|
|
GstClockTime start = 0, stop = GST_CLOCK_TIME_NONE;
|
|
|
|
GST_LOG_OBJECT (stream->pad, "activate segment %d, offset %" GST_TIME_FORMAT,
|
|
seg_idx, GST_TIME_ARGS (offset));
|
|
|
|
if (!gst_qtdemux_stream_update_segment (qtdemux, stream, seg_idx, offset,
|
|
&start, &stop))
|
|
return FALSE;
|
|
|
|
segment = &stream->segments[stream->segment_index];
|
|
|
|
/* in the fragmented case, we pick a fragment that starts before our
|
|
* desired position and rely on downstream to wait for a keyframe
|
|
* (FIXME: doesn't seem to work so well with ismv and wmv, as no parser; the
|
|
* tfra entries tells us which trun/sample the key unit is in, but we don't
|
|
* make use of this additional information at the moment) */
|
|
if (qtdemux->fragmented && !qtdemux->fragmented_seek_pending) {
|
|
stream->to_sample = G_MAXUINT32;
|
|
return TRUE;
|
|
} else {
|
|
/* well, it will be taken care of below */
|
|
qtdemux->fragmented_seek_pending = FALSE;
|
|
/* FIXME ideally the do_fragmented_seek can be done right here,
|
|
* rather than at loop level
|
|
* (which might even allow handling edit lists in a fragmented file) */
|
|
}
|
|
|
|
/* We don't need to look for a sample in push-based */
|
|
if (!qtdemux->pullbased)
|
|
return TRUE;
|
|
|
|
/* and move to the keyframe before the indicated media time of the
|
|
* segment */
|
|
if (G_LIKELY (!QTSEGMENT_IS_EMPTY (segment))) {
|
|
if (qtdemux->segment.rate >= 0) {
|
|
index = gst_qtdemux_find_index_linear (qtdemux, stream, start);
|
|
stream->to_sample = G_MAXUINT32;
|
|
GST_DEBUG_OBJECT (stream->pad,
|
|
"moving data pointer to %" GST_TIME_FORMAT ", index: %u, pts %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (start), index,
|
|
GST_TIME_ARGS (QTSAMPLE_PTS (stream, &stream->samples[index])));
|
|
} else {
|
|
index = gst_qtdemux_find_index_linear (qtdemux, stream, stop);
|
|
stream->to_sample = index;
|
|
GST_DEBUG_OBJECT (stream->pad,
|
|
"moving data pointer to %" GST_TIME_FORMAT ", index: %u, pts %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (stop), index,
|
|
GST_TIME_ARGS (QTSAMPLE_PTS (stream, &stream->samples[index])));
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (stream->pad, "No need to look for keyframe, "
|
|
"this is an empty segment");
|
|
return TRUE;
|
|
}
|
|
|
|
/* gst_qtdemux_parse_sample () called from gst_qtdemux_find_index_linear ()
|
|
* encountered an error and printed a message so we return appropriately */
|
|
if (index == -1)
|
|
return FALSE;
|
|
|
|
/* we're at the right spot */
|
|
if (index == stream->sample_index) {
|
|
GST_DEBUG_OBJECT (stream->pad, "we are at the right index");
|
|
return TRUE;
|
|
}
|
|
|
|
/* find keyframe of the target index */
|
|
kf_index = gst_qtdemux_find_keyframe (qtdemux, stream, index, FALSE);
|
|
|
|
/* go back two frames to provide lead-in for non-raw audio decoders */
|
|
if (stream->subtype == FOURCC_soun && !stream->need_clip) {
|
|
guint32 lead_in = 2;
|
|
guint32 old_index = kf_index;
|
|
GstStructure *s = gst_caps_get_structure (CUR_STREAM (stream)->caps, 0);
|
|
|
|
if (gst_structure_has_name (s, "audio/mpeg")) {
|
|
gint mpegversion;
|
|
if (gst_structure_get_int (s, "mpegversion", &mpegversion)
|
|
&& mpegversion == 1) {
|
|
/* mp3 could need up to 30 frames of lead-in per mpegaudioparse */
|
|
lead_in = 30;
|
|
}
|
|
}
|
|
|
|
kf_index = MAX (kf_index, lead_in) - lead_in;
|
|
if (qtdemux_parse_samples (qtdemux, stream, kf_index)) {
|
|
GST_DEBUG_OBJECT (stream->pad,
|
|
"Moving backwards %u frames to ensure sufficient sound lead-in",
|
|
old_index - kf_index);
|
|
} else {
|
|
kf_index = old_index;
|
|
}
|
|
}
|
|
|
|
/* if we move forwards, we don't have to go back to the previous
|
|
* keyframe since we already sent that. We can also just jump to
|
|
* the keyframe right before the target index if there is one. */
|
|
if (index > stream->sample_index) {
|
|
/* moving forwards check if we move past a keyframe */
|
|
if (kf_index > stream->sample_index) {
|
|
GST_DEBUG_OBJECT (stream->pad,
|
|
"moving forwards to keyframe at %u "
|
|
"(pts %" GST_TIME_FORMAT " dts %" GST_TIME_FORMAT " )",
|
|
kf_index,
|
|
GST_TIME_ARGS (QTSAMPLE_PTS (stream, &stream->samples[kf_index])),
|
|
GST_TIME_ARGS (QTSAMPLE_DTS (stream, &stream->samples[kf_index])));
|
|
gst_qtdemux_move_stream (qtdemux, stream, kf_index);
|
|
} else {
|
|
GST_DEBUG_OBJECT (stream->pad,
|
|
"moving forwards, keyframe at %u "
|
|
"(pts %" GST_TIME_FORMAT " dts %" GST_TIME_FORMAT " ) already sent",
|
|
kf_index,
|
|
GST_TIME_ARGS (QTSAMPLE_PTS (stream, &stream->samples[kf_index])),
|
|
GST_TIME_ARGS (QTSAMPLE_DTS (stream, &stream->samples[kf_index])));
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (stream->pad,
|
|
"moving backwards to %sframe at %u "
|
|
"(pts %" GST_TIME_FORMAT " dts %" GST_TIME_FORMAT " )",
|
|
(stream->subtype == FOURCC_soun) ? "audio " : "key", kf_index,
|
|
GST_TIME_ARGS (QTSAMPLE_PTS (stream, &stream->samples[kf_index])),
|
|
GST_TIME_ARGS (QTSAMPLE_DTS (stream, &stream->samples[kf_index])));
|
|
gst_qtdemux_move_stream (qtdemux, stream, kf_index);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* prepare to get the current sample of @stream, getting essential values.
|
|
*
|
|
* This function will also prepare and send the segment when needed.
|
|
*
|
|
* Return FALSE if the stream is EOS.
|
|
*
|
|
* PULL-BASED
|
|
*/
|
|
static gboolean
|
|
gst_qtdemux_prepare_current_sample (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream, gboolean * empty, guint64 * offset, guint * size,
|
|
GstClockTime * dts, GstClockTime * pts, GstClockTime * duration,
|
|
gboolean * keyframe)
|
|
{
|
|
QtDemuxSample *sample;
|
|
GstClockTime time_position;
|
|
guint32 seg_idx;
|
|
|
|
g_return_val_if_fail (stream != NULL, FALSE);
|
|
|
|
time_position = stream->time_position;
|
|
if (G_UNLIKELY (time_position == GST_CLOCK_TIME_NONE))
|
|
goto eos;
|
|
|
|
seg_idx = stream->segment_index;
|
|
if (G_UNLIKELY (seg_idx == -1)) {
|
|
/* find segment corresponding to time_position if we are looking
|
|
* for a segment. */
|
|
seg_idx = gst_qtdemux_find_segment (qtdemux, stream, time_position);
|
|
}
|
|
|
|
/* different segment, activate it, sample_index will be set. */
|
|
if (G_UNLIKELY (stream->segment_index != seg_idx))
|
|
gst_qtdemux_activate_segment (qtdemux, stream, seg_idx, time_position);
|
|
|
|
if (G_UNLIKELY (QTSEGMENT_IS_EMPTY (&stream->
|
|
segments[stream->segment_index]))) {
|
|
QtDemuxSegment *seg = &stream->segments[stream->segment_index];
|
|
|
|
GST_LOG_OBJECT (qtdemux, "Empty segment activated,"
|
|
" prepare empty sample");
|
|
|
|
*empty = TRUE;
|
|
*pts = *dts = time_position;
|
|
*duration = seg->duration - (time_position - seg->time);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
*empty = FALSE;
|
|
|
|
if (stream->sample_index == -1)
|
|
stream->sample_index = 0;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "segment active, index = %u of %u",
|
|
stream->sample_index, stream->n_samples);
|
|
|
|
if (G_UNLIKELY (stream->sample_index >= stream->n_samples)) {
|
|
if (!qtdemux->fragmented)
|
|
goto eos;
|
|
|
|
GST_INFO_OBJECT (qtdemux, "out of samples, trying to add more");
|
|
do {
|
|
GstFlowReturn flow;
|
|
|
|
GST_OBJECT_LOCK (qtdemux);
|
|
flow = qtdemux_add_fragmented_samples (qtdemux);
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
|
|
if (flow != GST_FLOW_OK)
|
|
goto eos;
|
|
}
|
|
while (stream->sample_index >= stream->n_samples);
|
|
}
|
|
|
|
if (!qtdemux_parse_samples (qtdemux, stream, stream->sample_index)) {
|
|
GST_LOG_OBJECT (qtdemux, "Parsing of index %u failed!",
|
|
stream->sample_index);
|
|
return FALSE;
|
|
}
|
|
|
|
/* now get the info for the sample we're at */
|
|
sample = &stream->samples[stream->sample_index];
|
|
|
|
*dts = QTSAMPLE_DTS (stream, sample);
|
|
*pts = QTSAMPLE_PTS (stream, sample);
|
|
*offset = sample->offset;
|
|
*size = sample->size;
|
|
*duration = QTSAMPLE_DUR_DTS (stream, sample, *dts);
|
|
*keyframe = QTSAMPLE_KEYFRAME (stream, sample);
|
|
|
|
return TRUE;
|
|
|
|
/* special cases */
|
|
eos:
|
|
{
|
|
stream->time_position = GST_CLOCK_TIME_NONE;
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* move to the next sample in @stream.
|
|
*
|
|
* Moves to the next segment when needed.
|
|
*/
|
|
static void
|
|
gst_qtdemux_advance_sample (GstQTDemux * qtdemux, QtDemuxStream * stream)
|
|
{
|
|
QtDemuxSample *sample;
|
|
QtDemuxSegment *segment;
|
|
|
|
/* get current segment */
|
|
segment = &stream->segments[stream->segment_index];
|
|
|
|
if (G_UNLIKELY (QTSEGMENT_IS_EMPTY (segment))) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Empty segment, no samples to advance");
|
|
goto next_segment;
|
|
}
|
|
|
|
if (G_UNLIKELY (stream->sample_index >= stream->to_sample)) {
|
|
/* Mark the stream as EOS */
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"reached max allowed sample %u, mark EOS", stream->to_sample);
|
|
stream->time_position = GST_CLOCK_TIME_NONE;
|
|
return;
|
|
}
|
|
|
|
/* move to next sample */
|
|
stream->sample_index++;
|
|
stream->offset_in_sample = 0;
|
|
|
|
GST_TRACE_OBJECT (qtdemux, "advance to sample %u/%u", stream->sample_index,
|
|
stream->n_samples);
|
|
|
|
/* reached the last sample, we need the next segment */
|
|
if (G_UNLIKELY (stream->sample_index >= stream->n_samples))
|
|
goto next_segment;
|
|
|
|
if (!qtdemux_parse_samples (qtdemux, stream, stream->sample_index)) {
|
|
GST_LOG_OBJECT (qtdemux, "Parsing of index %u failed!",
|
|
stream->sample_index);
|
|
return;
|
|
}
|
|
|
|
/* get next sample */
|
|
sample = &stream->samples[stream->sample_index];
|
|
|
|
GST_TRACE_OBJECT (qtdemux, "sample dts %" GST_TIME_FORMAT " media_stop: %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (QTSAMPLE_DTS (stream, sample)),
|
|
GST_TIME_ARGS (segment->media_stop));
|
|
|
|
/* see if we are past the segment */
|
|
if (G_UNLIKELY (QTSAMPLE_DTS (stream, sample) >= segment->media_stop))
|
|
goto next_segment;
|
|
|
|
if (QTSAMPLE_DTS (stream, sample) >= segment->media_start) {
|
|
/* inside the segment, update time_position, looks very familiar to
|
|
* GStreamer segments, doesn't it? */
|
|
stream->time_position =
|
|
QTSAMPLE_DTS (stream, sample) - segment->media_start + segment->time;
|
|
} else {
|
|
/* not yet in segment, time does not yet increment. This means
|
|
* that we are still prerolling keyframes to the decoder so it can
|
|
* decode the first sample of the segment. */
|
|
stream->time_position = segment->time;
|
|
}
|
|
return;
|
|
|
|
/* move to the next segment */
|
|
next_segment:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "segment %d ended ", stream->segment_index);
|
|
|
|
if (stream->segment_index == stream->n_segments - 1) {
|
|
/* are we at the end of the last segment, we're EOS */
|
|
stream->time_position = GST_CLOCK_TIME_NONE;
|
|
} else {
|
|
/* else we're only at the end of the current segment */
|
|
stream->time_position = segment->stop_time;
|
|
}
|
|
/* make sure we select a new segment */
|
|
|
|
/* accumulate previous segments */
|
|
if (GST_CLOCK_TIME_IS_VALID (stream->segment.stop))
|
|
stream->accumulated_base +=
|
|
(stream->segment.stop -
|
|
stream->segment.start) / ABS (stream->segment.rate);
|
|
|
|
stream->segment_index = -1;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_sync_streams (GstQTDemux * demux)
|
|
{
|
|
gint i;
|
|
|
|
if (QTDEMUX_N_STREAMS (demux) <= 1)
|
|
return;
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (demux); i++) {
|
|
QtDemuxStream *stream;
|
|
GstClockTime end_time;
|
|
|
|
stream = QTDEMUX_NTH_STREAM (demux, i);
|
|
|
|
if (!stream->pad)
|
|
continue;
|
|
|
|
/* TODO advance time on subtitle streams here, if any some day */
|
|
|
|
/* some clips/trailers may have unbalanced streams at the end,
|
|
* so send EOS on shorter stream to prevent stalling others */
|
|
|
|
/* do not mess with EOS if SEGMENT seeking */
|
|
if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT)
|
|
continue;
|
|
|
|
if (demux->pullbased) {
|
|
/* loop mode is sample time based */
|
|
if (!STREAM_IS_EOS (stream))
|
|
continue;
|
|
} else {
|
|
/* push mode is byte position based */
|
|
if (stream->n_samples &&
|
|
stream->samples[stream->n_samples - 1].offset >= demux->offset)
|
|
continue;
|
|
}
|
|
|
|
if (stream->sent_eos)
|
|
continue;
|
|
|
|
/* only act if some gap */
|
|
end_time = stream->segments[stream->n_segments - 1].stop_time;
|
|
GST_LOG_OBJECT (demux, "current position: %" GST_TIME_FORMAT
|
|
", stream end: %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (demux->segment.position), GST_TIME_ARGS (end_time));
|
|
if (GST_CLOCK_TIME_IS_VALID (end_time)
|
|
&& (end_time + 2 * GST_SECOND < demux->segment.position)) {
|
|
GstEvent *event;
|
|
|
|
GST_DEBUG_OBJECT (demux, "sending EOS for stream %s",
|
|
GST_PAD_NAME (stream->pad));
|
|
stream->sent_eos = TRUE;
|
|
event = gst_event_new_eos ();
|
|
if (demux->segment_seqnum != GST_SEQNUM_INVALID)
|
|
gst_event_set_seqnum (event, demux->segment_seqnum);
|
|
gst_pad_push_event (stream->pad, event);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* EOS and NOT_LINKED need to be combined. This means that we return:
|
|
*
|
|
* GST_FLOW_NOT_LINKED: when all pads NOT_LINKED.
|
|
* GST_FLOW_EOS: when all pads EOS or NOT_LINKED.
|
|
*/
|
|
static GstFlowReturn
|
|
gst_qtdemux_combine_flows (GstQTDemux * demux, QtDemuxStream * stream,
|
|
GstFlowReturn ret)
|
|
{
|
|
GST_LOG_OBJECT (demux, "flow return: %s", gst_flow_get_name (ret));
|
|
|
|
if (stream->pad)
|
|
ret = gst_flow_combiner_update_pad_flow (demux->flowcombiner, stream->pad,
|
|
ret);
|
|
else
|
|
ret = gst_flow_combiner_update_flow (demux->flowcombiner, ret);
|
|
|
|
GST_LOG_OBJECT (demux, "combined flow return: %s", gst_flow_get_name (ret));
|
|
return ret;
|
|
}
|
|
|
|
/* the input buffer metadata must be writable. Returns NULL when the buffer is
|
|
* completely clipped
|
|
*
|
|
* Should be used only with raw buffers */
|
|
static GstBuffer *
|
|
gst_qtdemux_clip_buffer (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstBuffer * buf)
|
|
{
|
|
guint64 start, stop, cstart, cstop, diff;
|
|
GstClockTime pts, duration;
|
|
gsize size, osize;
|
|
gint num_rate, denom_rate;
|
|
gint frame_size;
|
|
gboolean clip_data;
|
|
guint offset;
|
|
|
|
osize = size = gst_buffer_get_size (buf);
|
|
offset = 0;
|
|
|
|
/* depending on the type, setup the clip parameters */
|
|
if (stream->subtype == FOURCC_soun) {
|
|
frame_size = CUR_STREAM (stream)->bytes_per_frame;
|
|
num_rate = GST_SECOND;
|
|
denom_rate = (gint) CUR_STREAM (stream)->rate;
|
|
clip_data = TRUE;
|
|
} else if (stream->subtype == FOURCC_vide) {
|
|
frame_size = size;
|
|
num_rate = CUR_STREAM (stream)->fps_n;
|
|
denom_rate = CUR_STREAM (stream)->fps_d;
|
|
clip_data = FALSE;
|
|
} else
|
|
goto wrong_type;
|
|
|
|
if (frame_size <= 0)
|
|
goto bad_frame_size;
|
|
|
|
/* we can only clip if we have a valid pts */
|
|
pts = GST_BUFFER_PTS (buf);
|
|
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (pts)))
|
|
goto no_pts;
|
|
|
|
duration = GST_BUFFER_DURATION (buf);
|
|
|
|
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (duration))) {
|
|
duration =
|
|
gst_util_uint64_scale_int (size / frame_size, num_rate, denom_rate);
|
|
}
|
|
|
|
start = pts;
|
|
stop = start + duration;
|
|
|
|
if (G_UNLIKELY (!gst_segment_clip (&stream->segment,
|
|
GST_FORMAT_TIME, start, stop, &cstart, &cstop)))
|
|
goto clipped;
|
|
|
|
/* see if some clipping happened */
|
|
diff = cstart - start;
|
|
if (diff > 0) {
|
|
pts += diff;
|
|
duration -= diff;
|
|
|
|
if (clip_data) {
|
|
/* bring clipped time to samples and to bytes */
|
|
diff = gst_util_uint64_scale_int (diff, denom_rate, num_rate);
|
|
diff *= frame_size;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"clipping start to %" GST_TIME_FORMAT " %"
|
|
G_GUINT64_FORMAT " bytes", GST_TIME_ARGS (cstart), diff);
|
|
|
|
offset = diff;
|
|
size -= diff;
|
|
}
|
|
}
|
|
diff = stop - cstop;
|
|
if (diff > 0) {
|
|
duration -= diff;
|
|
|
|
if (clip_data) {
|
|
/* bring clipped time to samples and then to bytes */
|
|
diff = gst_util_uint64_scale_int (diff, denom_rate, num_rate);
|
|
diff *= frame_size;
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"clipping stop to %" GST_TIME_FORMAT " %" G_GUINT64_FORMAT
|
|
" bytes", GST_TIME_ARGS (cstop), diff);
|
|
size -= diff;
|
|
}
|
|
}
|
|
|
|
if (offset != 0 || size != osize)
|
|
gst_buffer_resize (buf, offset, size);
|
|
|
|
GST_BUFFER_DTS (buf) = GST_CLOCK_TIME_NONE;
|
|
GST_BUFFER_PTS (buf) = pts;
|
|
GST_BUFFER_DURATION (buf) = duration;
|
|
|
|
return buf;
|
|
|
|
/* dropped buffer */
|
|
wrong_type:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "unknown stream type");
|
|
return buf;
|
|
}
|
|
bad_frame_size:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "bad frame size");
|
|
return buf;
|
|
}
|
|
no_pts:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "no pts on buffer");
|
|
return buf;
|
|
}
|
|
clipped:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "clipped buffer");
|
|
gst_buffer_unref (buf);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_qtdemux_align_buffer (GstQTDemux * demux,
|
|
GstBuffer * buffer, gsize alignment)
|
|
{
|
|
GstMapInfo map;
|
|
|
|
gst_buffer_map (buffer, &map, GST_MAP_READ);
|
|
|
|
if (map.size < sizeof (guintptr)) {
|
|
gst_buffer_unmap (buffer, &map);
|
|
return buffer;
|
|
}
|
|
|
|
if (((guintptr) map.data) & (alignment - 1)) {
|
|
GstBuffer *new_buffer;
|
|
GstAllocationParams params = { 0, alignment - 1, 0, 0, };
|
|
|
|
new_buffer = gst_buffer_new_allocate (NULL,
|
|
gst_buffer_get_size (buffer), ¶ms);
|
|
|
|
/* Copy data "by hand", so ensure alignment is kept: */
|
|
gst_buffer_fill (new_buffer, 0, map.data, map.size);
|
|
|
|
gst_buffer_copy_into (new_buffer, buffer, GST_BUFFER_COPY_METADATA, 0, -1);
|
|
GST_DEBUG_OBJECT (demux,
|
|
"We want output aligned on %" G_GSIZE_FORMAT ", reallocated",
|
|
alignment);
|
|
|
|
gst_buffer_unmap (buffer, &map);
|
|
gst_buffer_unref (buffer);
|
|
|
|
return new_buffer;
|
|
}
|
|
|
|
gst_buffer_unmap (buffer, &map);
|
|
return buffer;
|
|
}
|
|
|
|
static guint8 *
|
|
convert_to_s334_1a (const guint8 * ccpair, guint8 ccpair_size, guint field,
|
|
gsize * res)
|
|
{
|
|
guint8 *storage;
|
|
gsize i;
|
|
|
|
/* We are converting from pairs to triplets */
|
|
*res = ccpair_size / 2 * 3;
|
|
storage = g_malloc (*res);
|
|
for (i = 0; i * 2 < ccpair_size; i += 1) {
|
|
/* FIXME: Use line offset 0 as we simply can't know here */
|
|
if (field == 1)
|
|
storage[i * 3] = 0x80 | 0x00;
|
|
else
|
|
storage[i * 3] = 0x00 | 0x00;
|
|
storage[i * 3 + 1] = ccpair[i * 2];
|
|
storage[i * 3 + 2] = ccpair[i * 2 + 1];
|
|
}
|
|
|
|
return storage;
|
|
}
|
|
|
|
static guint8 *
|
|
extract_cc_from_data (QtDemuxStream * stream, const guint8 * data, gsize size,
|
|
gsize * cclen)
|
|
{
|
|
guint8 *res = NULL;
|
|
guint32 atom_length, fourcc;
|
|
QtDemuxStreamStsdEntry *stsd_entry;
|
|
|
|
GST_MEMDUMP ("caption atom", data, size);
|
|
|
|
/* There might be multiple atoms */
|
|
|
|
*cclen = 0;
|
|
if (size < 8)
|
|
goto invalid_cdat;
|
|
atom_length = QT_UINT32 (data);
|
|
fourcc = QT_FOURCC (data + 4);
|
|
if (G_UNLIKELY (atom_length > size || atom_length == 8))
|
|
goto invalid_cdat;
|
|
|
|
GST_DEBUG_OBJECT (stream->pad, "here");
|
|
|
|
/* Check if we have something compatible */
|
|
stsd_entry = CUR_STREAM (stream);
|
|
switch (stsd_entry->fourcc) {
|
|
case FOURCC_c608:{
|
|
guint8 *cdat = NULL, *cdt2 = NULL;
|
|
gsize cdat_size = 0, cdt2_size = 0;
|
|
/* Should be cdat or cdt2 */
|
|
if (fourcc != FOURCC_cdat && fourcc != FOURCC_cdt2) {
|
|
GST_WARNING_OBJECT (stream->pad,
|
|
"Unknown data atom (%" GST_FOURCC_FORMAT ") for CEA608",
|
|
GST_FOURCC_ARGS (fourcc));
|
|
goto invalid_cdat;
|
|
}
|
|
|
|
/* Convert to S334-1 Annex A byte triplet */
|
|
if (fourcc == FOURCC_cdat)
|
|
cdat = convert_to_s334_1a (data + 8, atom_length - 8, 1, &cdat_size);
|
|
else
|
|
cdt2 = convert_to_s334_1a (data + 8, atom_length - 8, 2, &cdt2_size);
|
|
GST_DEBUG_OBJECT (stream->pad, "size:%" G_GSIZE_FORMAT " atom_length:%u",
|
|
size, atom_length);
|
|
|
|
/* Check for another atom ? */
|
|
if (size > atom_length + 8) {
|
|
guint32 new_atom_length = QT_UINT32 (data + atom_length);
|
|
if (size >= atom_length + new_atom_length) {
|
|
fourcc = QT_FOURCC (data + atom_length + 4);
|
|
if (fourcc == FOURCC_cdat) {
|
|
if (cdat == NULL)
|
|
cdat =
|
|
convert_to_s334_1a (data + atom_length + 8,
|
|
new_atom_length - 8, 1, &cdat_size);
|
|
else
|
|
GST_WARNING_OBJECT (stream->pad,
|
|
"Got multiple [cdat] atoms in a c608 sample. This is unsupported for now. Please file a bug");
|
|
} else {
|
|
if (cdt2 == NULL)
|
|
cdt2 =
|
|
convert_to_s334_1a (data + atom_length + 8,
|
|
new_atom_length - 8, 2, &cdt2_size);
|
|
else
|
|
GST_WARNING_OBJECT (stream->pad,
|
|
"Got multiple [cdt2] atoms in a c608 sample. This is unsupported for now. Please file a bug");
|
|
}
|
|
}
|
|
}
|
|
|
|
*cclen = cdat_size + cdt2_size;
|
|
res = g_malloc (*cclen);
|
|
if (cdat_size)
|
|
memcpy (res, cdat, cdat_size);
|
|
if (cdt2_size)
|
|
memcpy (res + cdat_size, cdt2, cdt2_size);
|
|
g_free (cdat);
|
|
g_free (cdt2);
|
|
}
|
|
break;
|
|
case FOURCC_c708:
|
|
if (fourcc != FOURCC_ccdp) {
|
|
GST_WARNING_OBJECT (stream->pad,
|
|
"Unknown data atom (%" GST_FOURCC_FORMAT ") for CEA708",
|
|
GST_FOURCC_ARGS (fourcc));
|
|
goto invalid_cdat;
|
|
}
|
|
*cclen = atom_length - 8;
|
|
res = g_memdup2 (data + 8, *cclen);
|
|
break;
|
|
default:
|
|
/* Keep this here in case other closed caption formats are added */
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
|
|
GST_MEMDUMP ("Output", res, *cclen);
|
|
return res;
|
|
|
|
/* Errors */
|
|
invalid_cdat:
|
|
GST_WARNING ("[cdat] atom is too small or invalid");
|
|
return NULL;
|
|
}
|
|
|
|
/* Handle Closed Caption sample buffers.
|
|
* The input buffer metadata must be writable,
|
|
* but time/duration etc not yet set and need not be preserved */
|
|
static GstBuffer *
|
|
gst_qtdemux_process_buffer_clcp (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstBuffer * buf)
|
|
{
|
|
GstBuffer *outbuf = NULL;
|
|
GstMapInfo map;
|
|
guint8 *cc;
|
|
gsize cclen = 0;
|
|
|
|
gst_buffer_map (buf, &map, GST_MAP_READ);
|
|
|
|
/* empty buffer is sent to terminate previous subtitle */
|
|
if (map.size <= 2) {
|
|
gst_buffer_unmap (buf, &map);
|
|
gst_buffer_unref (buf);
|
|
return NULL;
|
|
}
|
|
|
|
/* For closed caption, we need to extract the information from the
|
|
* [cdat],[cdt2] or [ccdp] atom */
|
|
cc = extract_cc_from_data (stream, map.data, map.size, &cclen);
|
|
gst_buffer_unmap (buf, &map);
|
|
if (cc) {
|
|
outbuf = _gst_buffer_new_wrapped (cc, cclen, g_free);
|
|
gst_buffer_copy_into (outbuf, buf, GST_BUFFER_COPY_METADATA, 0, -1);
|
|
} else {
|
|
/* Conversion failed or there's nothing */
|
|
}
|
|
gst_buffer_unref (buf);
|
|
|
|
return outbuf;
|
|
}
|
|
|
|
/* DVD subpicture specific sample handling.
|
|
* the input buffer metadata must be writable,
|
|
* but time/duration etc not yet set and need not be preserved */
|
|
static GstBuffer *
|
|
gst_qtdemux_process_buffer_dvd (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstBuffer * buf)
|
|
{
|
|
/* send a one time dvd clut event */
|
|
if (stream->pending_event && stream->pad)
|
|
gst_pad_push_event (stream->pad, stream->pending_event);
|
|
stream->pending_event = NULL;
|
|
|
|
/* empty buffer is sent to terminate previous subtitle */
|
|
if (gst_buffer_get_size (buf) <= 2) {
|
|
gst_buffer_unref (buf);
|
|
return NULL;
|
|
}
|
|
|
|
/* That's all the processing needed for subpictures */
|
|
return buf;
|
|
}
|
|
|
|
/* Timed text formats
|
|
* the input buffer metadata must be writable,
|
|
* but time/duration etc not yet set and need not be preserved */
|
|
static GstBuffer *
|
|
gst_qtdemux_process_buffer_text (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstBuffer * buf)
|
|
{
|
|
GstBuffer *outbuf = NULL;
|
|
GstMapInfo map;
|
|
guint nsize = 0;
|
|
gchar *str;
|
|
|
|
/* not many cases for now */
|
|
if (G_UNLIKELY (stream->subtype != FOURCC_text &&
|
|
stream->subtype != FOURCC_sbtl)) {
|
|
return buf;
|
|
}
|
|
|
|
gst_buffer_map (buf, &map, GST_MAP_READ);
|
|
|
|
/* empty buffer is sent to terminate previous subtitle */
|
|
if (map.size <= 2) {
|
|
gst_buffer_unmap (buf, &map);
|
|
gst_buffer_unref (buf);
|
|
return NULL;
|
|
}
|
|
|
|
nsize = GST_READ_UINT16_BE (map.data);
|
|
nsize = MIN (nsize, map.size - 2);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "3GPP timed text subtitle: %d/%" G_GSIZE_FORMAT "",
|
|
nsize, map.size);
|
|
|
|
/* takes care of UTF-8 validation or UTF-16 recognition,
|
|
* no other encoding expected */
|
|
str = gst_tag_freeform_string_to_utf8 ((gchar *) map.data + 2, nsize, NULL);
|
|
gst_buffer_unmap (buf, &map);
|
|
|
|
if (str) {
|
|
outbuf = _gst_buffer_new_wrapped (str, strlen (str), g_free);
|
|
gst_buffer_copy_into (outbuf, buf, GST_BUFFER_COPY_METADATA, 0, -1);
|
|
} else {
|
|
/* this should not really happen unless the subtitle is corrupted */
|
|
}
|
|
gst_buffer_unref (buf);
|
|
|
|
/* FIXME ? convert optional subsequent style info to markup */
|
|
|
|
return outbuf;
|
|
}
|
|
|
|
/* WebVTT sample handling according to 14496-30 */
|
|
static GstBuffer *
|
|
gst_qtdemux_process_buffer_wvtt (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstBuffer * buf)
|
|
{
|
|
GstBuffer *outbuf = NULL;
|
|
GstMapInfo map;
|
|
|
|
if (!gst_buffer_map (buf, &map, GST_MAP_READ)) {
|
|
g_assert_not_reached (); /* The buffer must be mappable */
|
|
}
|
|
|
|
if (qtdemux_webvtt_is_empty (qtdemux, map.data, map.size)) {
|
|
GstEvent *gap = NULL;
|
|
/* Push a gap event */
|
|
stream->segment.position = GST_BUFFER_PTS (buf);
|
|
gap =
|
|
gst_event_new_gap (stream->segment.position, GST_BUFFER_DURATION (buf));
|
|
gst_pad_push_event (stream->pad, gap);
|
|
|
|
if (GST_BUFFER_DURATION_IS_VALID (buf))
|
|
stream->segment.position += GST_BUFFER_DURATION (buf);
|
|
} else {
|
|
outbuf =
|
|
qtdemux_webvtt_decode (qtdemux, GST_BUFFER_PTS (buf),
|
|
GST_BUFFER_DURATION (buf), map.data, map.size);
|
|
gst_buffer_copy_into (outbuf, buf, GST_BUFFER_COPY_METADATA, 0, -1);
|
|
}
|
|
|
|
gst_buffer_unmap (buf, &map);
|
|
gst_buffer_unref (buf);
|
|
|
|
return outbuf;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_qtdemux_push_buffer (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstBuffer * buf)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstClockTime pts, duration;
|
|
|
|
if (stream->need_clip)
|
|
buf = gst_qtdemux_clip_buffer (qtdemux, stream, buf);
|
|
|
|
if (G_UNLIKELY (buf == NULL))
|
|
goto exit;
|
|
|
|
if (G_UNLIKELY (stream->discont)) {
|
|
GST_LOG_OBJECT (qtdemux, "marking discont buffer");
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
|
|
stream->discont = FALSE;
|
|
} else {
|
|
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DISCONT);
|
|
}
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"Pushing buffer with dts %" GST_TIME_FORMAT ", pts %" GST_TIME_FORMAT
|
|
", duration %" GST_TIME_FORMAT " on pad %s",
|
|
GST_TIME_ARGS (GST_BUFFER_DTS (buf)),
|
|
GST_TIME_ARGS (GST_BUFFER_PTS (buf)),
|
|
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_PAD_NAME (stream->pad));
|
|
|
|
if (stream->protected && stream->protection_scheme_type == FOURCC_aavd) {
|
|
GstStructure *crypto_info;
|
|
QtDemuxAavdEncryptionInfo *info =
|
|
(QtDemuxAavdEncryptionInfo *) stream->protection_scheme_info;
|
|
|
|
crypto_info = gst_structure_copy (info->default_properties);
|
|
if (!crypto_info || !gst_buffer_add_protection_meta (buf, crypto_info))
|
|
GST_ERROR_OBJECT (qtdemux, "failed to attach aavd metadata to buffer");
|
|
}
|
|
|
|
if (stream->protected && (stream->protection_scheme_type == FOURCC_cenc
|
|
|| stream->protection_scheme_type == FOURCC_cbcs)) {
|
|
GstStructure *crypto_info;
|
|
QtDemuxCencSampleSetInfo *info =
|
|
(QtDemuxCencSampleSetInfo *) stream->protection_scheme_info;
|
|
gint index;
|
|
GstEvent *event;
|
|
|
|
while ((event = g_queue_pop_head (&stream->protection_scheme_event_queue))) {
|
|
GST_TRACE_OBJECT (stream->pad, "pushing protection event: %"
|
|
GST_PTR_FORMAT, event);
|
|
gst_pad_push_event (stream->pad, event);
|
|
}
|
|
|
|
if (info->crypto_info == NULL) {
|
|
if (stream->protection_scheme_type == FOURCC_cbcs) {
|
|
if (CUR_STREAM (stream)->fourcc == FOURCC_enca ||
|
|
CUR_STREAM (stream)->fourcc == FOURCC_encs ||
|
|
CUR_STREAM (stream)->fourcc == FOURCC_enct ||
|
|
CUR_STREAM (stream)->fourcc == FOURCC_encv) {
|
|
crypto_info = qtdemux_get_cenc_sample_properties (qtdemux, stream, 0);
|
|
if (!crypto_info
|
|
|| !gst_buffer_add_protection_meta (buf, crypto_info)) {
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"failed to attach cbcs metadata to buffer");
|
|
qtdemux_gst_structure_free (crypto_info);
|
|
} else {
|
|
GST_TRACE_OBJECT (qtdemux, "added cbcs protection metadata");
|
|
}
|
|
} else {
|
|
GST_TRACE_OBJECT (qtdemux,
|
|
"cbcs stream is not encrypted yet, not adding protection metadata");
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"cenc metadata hasn't been parsed yet, pushing buffer as if it wasn't encrypted");
|
|
}
|
|
} else {
|
|
/* The end of the crypto_info array matches our n_samples position,
|
|
* so count backward from there */
|
|
index = stream->sample_index - stream->n_samples + info->crypto_info->len;
|
|
if (G_LIKELY (index >= 0 && index < info->crypto_info->len)) {
|
|
/* steal structure from array */
|
|
crypto_info = g_ptr_array_index (info->crypto_info, index);
|
|
g_ptr_array_index (info->crypto_info, index) = NULL;
|
|
GST_LOG_OBJECT (qtdemux, "attaching cenc metadata [%u/%u]", index,
|
|
info->crypto_info->len);
|
|
if (!crypto_info || !gst_buffer_add_protection_meta (buf, crypto_info))
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"failed to attach cenc metadata to buffer");
|
|
} else {
|
|
GST_INFO_OBJECT (qtdemux, "No crypto info with index %d and sample %d",
|
|
index, stream->sample_index);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (stream->alignment > 1)
|
|
buf = gst_qtdemux_align_buffer (qtdemux, buf, stream->alignment);
|
|
|
|
pts = GST_BUFFER_PTS (buf);
|
|
duration = GST_BUFFER_DURATION (buf);
|
|
|
|
ret = gst_pad_push (stream->pad, buf);
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (pts) && GST_CLOCK_TIME_IS_VALID (duration)) {
|
|
/* mark position in stream, we'll need this to know when to send GAP event */
|
|
stream->segment.position = pts + duration;
|
|
}
|
|
|
|
exit:
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_qtdemux_split_and_push_buffer (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstBuffer * buf)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
if (stream->subtype == FOURCC_clcp
|
|
&& CUR_STREAM (stream)->fourcc == FOURCC_c608 && stream->need_split) {
|
|
GstMapInfo map;
|
|
guint n_output_buffers, n_field1 = 0, n_field2 = 0;
|
|
guint n_triplets, i;
|
|
guint field1_off = 0, field2_off = 0;
|
|
|
|
/* We have to split CEA608 buffers so that each outgoing buffer contains
|
|
* one byte pair per field according to the framerate of the video track.
|
|
*
|
|
* If there is only a single byte pair per field we don't have to do
|
|
* anything
|
|
*/
|
|
|
|
gst_buffer_map (buf, &map, GST_MAP_READ);
|
|
|
|
n_triplets = map.size / 3;
|
|
for (i = 0; i < n_triplets; i++) {
|
|
if (map.data[3 * i] & 0x80)
|
|
n_field1++;
|
|
else
|
|
n_field2++;
|
|
}
|
|
|
|
g_assert (n_field1 || n_field2);
|
|
|
|
/* If there's more than 1 frame we have to split, otherwise we can just
|
|
* pass through */
|
|
if (n_field1 > 1 || n_field2 > 1) {
|
|
n_output_buffers =
|
|
gst_util_uint64_scale (GST_BUFFER_DURATION (buf),
|
|
CUR_STREAM (stream)->fps_n, GST_SECOND * CUR_STREAM (stream)->fps_d);
|
|
|
|
for (i = 0; i < n_output_buffers; i++) {
|
|
GstBuffer *outbuf =
|
|
gst_buffer_new_and_alloc ((n_field1 ? 3 : 0) + (n_field2 ? 3 : 0));
|
|
GstMapInfo outmap;
|
|
guint8 *outptr;
|
|
|
|
gst_buffer_map (outbuf, &outmap, GST_MAP_WRITE);
|
|
outptr = outmap.data;
|
|
|
|
if (n_field1) {
|
|
gboolean found = FALSE;
|
|
|
|
while (map.data + field1_off < map.data + map.size) {
|
|
if (map.data[field1_off] & 0x80) {
|
|
memcpy (outptr, &map.data[field1_off], 3);
|
|
field1_off += 3;
|
|
found = TRUE;
|
|
break;
|
|
}
|
|
field1_off += 3;
|
|
}
|
|
|
|
if (!found) {
|
|
const guint8 empty[] = { 0x80, 0x80, 0x80 };
|
|
|
|
memcpy (outptr, empty, 3);
|
|
}
|
|
|
|
outptr += 3;
|
|
}
|
|
|
|
if (n_field2) {
|
|
gboolean found = FALSE;
|
|
|
|
while (map.data + field2_off < map.data + map.size) {
|
|
if ((map.data[field2_off] & 0x80) == 0) {
|
|
memcpy (outptr, &map.data[field2_off], 3);
|
|
field2_off += 3;
|
|
found = TRUE;
|
|
break;
|
|
}
|
|
field2_off += 3;
|
|
}
|
|
|
|
if (!found) {
|
|
const guint8 empty[] = { 0x00, 0x80, 0x80 };
|
|
|
|
memcpy (outptr, empty, 3);
|
|
}
|
|
|
|
outptr += 3;
|
|
}
|
|
|
|
gst_buffer_unmap (outbuf, &outmap);
|
|
|
|
GST_BUFFER_PTS (outbuf) =
|
|
GST_BUFFER_PTS (buf) + gst_util_uint64_scale (i,
|
|
GST_SECOND * CUR_STREAM (stream)->fps_d,
|
|
CUR_STREAM (stream)->fps_n);
|
|
GST_BUFFER_DURATION (outbuf) =
|
|
gst_util_uint64_scale (GST_SECOND, CUR_STREAM (stream)->fps_d,
|
|
CUR_STREAM (stream)->fps_n);
|
|
GST_BUFFER_OFFSET (outbuf) = -1;
|
|
GST_BUFFER_OFFSET_END (outbuf) = -1;
|
|
|
|
ret = gst_qtdemux_push_buffer (qtdemux, stream, outbuf);
|
|
|
|
if (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED)
|
|
break;
|
|
}
|
|
gst_buffer_unmap (buf, &map);
|
|
gst_buffer_unref (buf);
|
|
} else {
|
|
gst_buffer_unmap (buf, &map);
|
|
ret = gst_qtdemux_push_buffer (qtdemux, stream, buf);
|
|
}
|
|
} else {
|
|
ret = gst_qtdemux_push_buffer (qtdemux, stream, buf);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Sets a buffer's attributes properly and pushes it downstream.
|
|
* Also checks for additional actions and custom processing that may
|
|
* need to be done first.
|
|
*/
|
|
static GstFlowReturn
|
|
gst_qtdemux_decorate_and_push_buffer (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream, GstBuffer * buf,
|
|
GstClockTime dts, GstClockTime pts, GstClockTime duration,
|
|
gboolean keyframe, GstClockTime position, guint64 byte_position)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
/* offset the timestamps according to the edit list */
|
|
|
|
if (G_UNLIKELY (CUR_STREAM (stream)->fourcc == FOURCC_rtsp)) {
|
|
gchar *url;
|
|
GstMapInfo map;
|
|
|
|
gst_buffer_map (buf, &map, GST_MAP_READ);
|
|
url = g_strndup ((gchar *) map.data, map.size);
|
|
gst_buffer_unmap (buf, &map);
|
|
if (url != NULL && strlen (url) != 0) {
|
|
/* we have RTSP redirect now */
|
|
g_free (qtdemux->redirect_location);
|
|
qtdemux->redirect_location = g_strdup (url);
|
|
gst_element_post_message (GST_ELEMENT_CAST (qtdemux),
|
|
gst_message_new_element (GST_OBJECT_CAST (qtdemux),
|
|
gst_structure_new ("redirect",
|
|
"new-location", G_TYPE_STRING, url, NULL)));
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "Redirect URI of stream is empty, not "
|
|
"posting");
|
|
}
|
|
g_free (url);
|
|
}
|
|
|
|
/* position reporting */
|
|
if (qtdemux->segment.rate >= 0) {
|
|
qtdemux->segment.position = position;
|
|
gst_qtdemux_sync_streams (qtdemux);
|
|
}
|
|
|
|
if (G_UNLIKELY (!stream->pad)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "No output pad for stream, ignoring");
|
|
gst_buffer_unref (buf);
|
|
goto exit;
|
|
}
|
|
|
|
/* send out pending buffers */
|
|
while (stream->buffers) {
|
|
GstBuffer *buffer = (GstBuffer *) stream->buffers->data;
|
|
|
|
if (G_UNLIKELY (stream->discont)) {
|
|
GST_LOG_OBJECT (qtdemux, "marking discont buffer");
|
|
GST_BUFFER_FLAG_SET (buffer, GST_BUFFER_FLAG_DISCONT);
|
|
stream->discont = FALSE;
|
|
} else {
|
|
GST_BUFFER_FLAG_UNSET (buf, GST_BUFFER_FLAG_DISCONT);
|
|
}
|
|
|
|
if (stream->alignment > 1)
|
|
buffer = gst_qtdemux_align_buffer (qtdemux, buffer, stream->alignment);
|
|
gst_pad_push (stream->pad, buffer);
|
|
|
|
stream->buffers = g_slist_delete_link (stream->buffers, stream->buffers);
|
|
}
|
|
|
|
/* we're going to modify the metadata */
|
|
buf = gst_buffer_make_writable (buf);
|
|
|
|
if (qtdemux->start_utc_time != GST_CLOCK_TIME_NONE) {
|
|
static GstStaticCaps unix_caps = GST_STATIC_CAPS ("timestamp/x-unix");
|
|
GstCaps *caps = gst_static_caps_get (&unix_caps);
|
|
gst_buffer_add_reference_timestamp_meta (buf, caps,
|
|
pts + qtdemux->start_utc_time - stream->cslg_shift,
|
|
GST_CLOCK_TIME_NONE);
|
|
gst_caps_unref (caps);
|
|
}
|
|
|
|
GST_BUFFER_DTS (buf) = dts;
|
|
GST_BUFFER_PTS (buf) = pts;
|
|
GST_BUFFER_DURATION (buf) = duration;
|
|
GST_BUFFER_OFFSET (buf) = -1;
|
|
GST_BUFFER_OFFSET_END (buf) = -1;
|
|
|
|
if (G_UNLIKELY (stream->process_func))
|
|
buf = stream->process_func (qtdemux, stream, buf);
|
|
|
|
if (!buf) {
|
|
goto exit;
|
|
}
|
|
|
|
if (!keyframe) {
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
stream->on_keyframe = FALSE;
|
|
} else {
|
|
stream->on_keyframe = TRUE;
|
|
}
|
|
|
|
if (G_UNLIKELY (CUR_STREAM (stream)->rgb8_palette))
|
|
gst_buffer_append_memory (buf,
|
|
gst_memory_ref (CUR_STREAM (stream)->rgb8_palette));
|
|
|
|
if (G_UNLIKELY (CUR_STREAM (stream)->padding)) {
|
|
gst_buffer_resize (buf, CUR_STREAM (stream)->padding, -1);
|
|
}
|
|
#if 0
|
|
if (G_UNLIKELY (qtdemux->element_index)) {
|
|
GstClockTime stream_time;
|
|
|
|
stream_time =
|
|
gst_segment_to_stream_time (&stream->segment, GST_FORMAT_TIME,
|
|
timestamp);
|
|
if (GST_CLOCK_TIME_IS_VALID (stream_time)) {
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"adding association %" GST_TIME_FORMAT "-> %"
|
|
G_GUINT64_FORMAT, GST_TIME_ARGS (stream_time), byte_position);
|
|
gst_index_add_association (qtdemux->element_index,
|
|
qtdemux->index_id,
|
|
keyframe ? GST_ASSOCIATION_FLAG_KEY_UNIT :
|
|
GST_ASSOCIATION_FLAG_DELTA_UNIT, GST_FORMAT_TIME, stream_time,
|
|
GST_FORMAT_BYTES, byte_position, NULL);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
ret = gst_qtdemux_split_and_push_buffer (qtdemux, stream, buf);
|
|
|
|
exit:
|
|
return ret;
|
|
}
|
|
|
|
static const QtDemuxRandomAccessEntry *
|
|
gst_qtdemux_stream_seek_fragment (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstClockTime pos, gboolean after)
|
|
{
|
|
QtDemuxRandomAccessEntry *entries = stream->ra_entries;
|
|
guint n_entries = stream->n_ra_entries;
|
|
guint i;
|
|
|
|
/* we assume the table is sorted */
|
|
for (i = 0; i < n_entries; ++i) {
|
|
if (entries[i].ts > pos)
|
|
break;
|
|
}
|
|
|
|
/* FIXME: maybe save first moof_offset somewhere instead, but for now it's
|
|
* probably okay to assume that the index lists the very first fragment */
|
|
if (i == 0)
|
|
return &entries[0];
|
|
|
|
if (after)
|
|
return &entries[i];
|
|
else
|
|
return &entries[i - 1];
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_do_fragmented_seek (GstQTDemux * qtdemux)
|
|
{
|
|
const QtDemuxRandomAccessEntry *best_entry = NULL;
|
|
gint i;
|
|
|
|
GST_OBJECT_LOCK (qtdemux);
|
|
|
|
g_assert (QTDEMUX_N_STREAMS (qtdemux) > 0);
|
|
|
|
/* first see if we can determine where to go to using mfra,
|
|
* before we start clearing things */
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
const QtDemuxRandomAccessEntry *entry;
|
|
QtDemuxStream *stream;
|
|
gboolean is_audio_or_video;
|
|
|
|
stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
|
|
if (stream->ra_entries == NULL)
|
|
continue;
|
|
|
|
if (stream->subtype == FOURCC_vide || stream->subtype == FOURCC_soun)
|
|
is_audio_or_video = TRUE;
|
|
else
|
|
is_audio_or_video = FALSE;
|
|
|
|
entry =
|
|
gst_qtdemux_stream_seek_fragment (qtdemux, stream,
|
|
stream->time_position, !is_audio_or_video);
|
|
|
|
GST_INFO_OBJECT (stream->pad, "%" GST_TIME_FORMAT " at offset "
|
|
"%" G_GUINT64_FORMAT, GST_TIME_ARGS (entry->ts), entry->moof_offset);
|
|
|
|
stream->pending_seek = entry;
|
|
|
|
/* decide position to jump to just based on audio/video tracks, not subs */
|
|
if (!is_audio_or_video)
|
|
continue;
|
|
|
|
if (best_entry == NULL || entry->moof_offset < best_entry->moof_offset)
|
|
best_entry = entry;
|
|
}
|
|
|
|
/* no luck, will handle seek otherwise */
|
|
if (best_entry == NULL) {
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
return FALSE;
|
|
}
|
|
|
|
/* ok, now we can prepare for processing as of located moof */
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream;
|
|
|
|
stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
|
|
g_free (stream->samples);
|
|
stream->samples = NULL;
|
|
stream->n_samples = 0;
|
|
stream->stbl_index = -1; /* no samples have yet been parsed */
|
|
stream->sample_index = -1;
|
|
|
|
if (stream->protection_scheme_info) {
|
|
/* Clear out any old cenc crypto info entries as we'll move to a new moof */
|
|
if (stream->protection_scheme_type == FOURCC_cenc
|
|
|| stream->protection_scheme_type == FOURCC_cbcs) {
|
|
QtDemuxCencSampleSetInfo *info =
|
|
(QtDemuxCencSampleSetInfo *) stream->protection_scheme_info;
|
|
if (info->crypto_info) {
|
|
g_ptr_array_free (info->crypto_info, TRUE);
|
|
info->crypto_info = NULL;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
GST_INFO_OBJECT (qtdemux, "seek to %" GST_TIME_FORMAT ", best fragment "
|
|
"moof offset: %" G_GUINT64_FORMAT ", ts %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (QTDEMUX_NTH_STREAM (qtdemux, 0)->time_position),
|
|
best_entry->moof_offset, GST_TIME_ARGS (best_entry->ts));
|
|
|
|
qtdemux->moof_offset = best_entry->moof_offset;
|
|
|
|
qtdemux_add_fragmented_samples (qtdemux);
|
|
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
return TRUE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_qtdemux_loop_state_movie (GstQTDemux * qtdemux)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstBuffer *buf = NULL;
|
|
QtDemuxStream *stream, *target_stream = NULL;
|
|
GstClockTime min_time;
|
|
guint64 offset = 0;
|
|
GstClockTime dts = GST_CLOCK_TIME_NONE;
|
|
GstClockTime pts = GST_CLOCK_TIME_NONE;
|
|
GstClockTime duration = 0;
|
|
gboolean keyframe = FALSE;
|
|
guint sample_size = 0;
|
|
guint num_samples = 1;
|
|
gboolean empty = 0;
|
|
guint size;
|
|
gint i;
|
|
|
|
if (qtdemux->fragmented_seek_pending) {
|
|
GST_INFO_OBJECT (qtdemux, "pending fragmented seek");
|
|
if (gst_qtdemux_do_fragmented_seek (qtdemux)) {
|
|
GST_INFO_OBJECT (qtdemux, "fragmented seek done!");
|
|
qtdemux->fragmented_seek_pending = FALSE;
|
|
} else {
|
|
GST_INFO_OBJECT (qtdemux, "fragmented seek still pending");
|
|
}
|
|
}
|
|
|
|
/* Figure out the next stream sample to output, min_time is expressed in
|
|
* global time and runs over the edit list segments. */
|
|
min_time = G_MAXUINT64;
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
GstClockTime position;
|
|
|
|
stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
position = stream->time_position;
|
|
|
|
/* position of -1 is EOS */
|
|
if (position != GST_CLOCK_TIME_NONE && position < min_time) {
|
|
min_time = position;
|
|
target_stream = stream;
|
|
}
|
|
}
|
|
/* all are EOS */
|
|
if (G_UNLIKELY (target_stream == NULL)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "all streams are EOS");
|
|
goto eos;
|
|
}
|
|
|
|
/* check for segment end */
|
|
if (G_UNLIKELY (qtdemux->segment.stop != -1
|
|
&& qtdemux->segment.rate >= 0
|
|
&& qtdemux->segment.stop <= min_time && target_stream->on_keyframe)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "we reached the end of our segment.");
|
|
target_stream->time_position = GST_CLOCK_TIME_NONE;
|
|
goto eos_stream;
|
|
}
|
|
|
|
/* fetch info for the current sample of this stream */
|
|
if (G_UNLIKELY (!gst_qtdemux_prepare_current_sample (qtdemux, target_stream,
|
|
&empty, &offset, &sample_size, &dts, &pts, &duration, &keyframe)))
|
|
goto eos_stream;
|
|
|
|
/* Send catche-up GAP event for each other stream if required.
|
|
* This logic will be applied only for positive rate */
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux) &&
|
|
qtdemux->segment.rate >= 0; i++) {
|
|
stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
|
|
if (stream == target_stream ||
|
|
!GST_CLOCK_TIME_IS_VALID (stream->segment.stop) ||
|
|
!GST_CLOCK_TIME_IS_VALID (stream->segment.position))
|
|
continue;
|
|
|
|
if (stream->pad) {
|
|
GstClockTime gap_threshold;
|
|
/* kind of running time with offset segment.base and segment.start */
|
|
GstClockTime pseudo_target_time = target_stream->segment.base;
|
|
GstClockTime pseudo_cur_time = stream->segment.base;
|
|
|
|
/* make sure positive offset, segment.position can be smallr than
|
|
* segment.start for some reasons */
|
|
if (target_stream->segment.position >= target_stream->segment.start) {
|
|
pseudo_target_time +=
|
|
(target_stream->segment.position - target_stream->segment.start);
|
|
}
|
|
|
|
if (stream->segment.position >= stream->segment.start)
|
|
pseudo_cur_time += (stream->segment.position - stream->segment.start);
|
|
|
|
/* Only send gap events on non-subtitle streams if lagging way behind. */
|
|
if (stream->subtype == FOURCC_subp
|
|
|| stream->subtype == FOURCC_text || stream->subtype == FOURCC_sbtl ||
|
|
stream->subtype == FOURCC_wvtt)
|
|
gap_threshold = 1 * GST_SECOND;
|
|
else
|
|
gap_threshold = 3 * GST_SECOND;
|
|
|
|
/* send gap events until the stream catches up */
|
|
/* gaps can only be sent after segment is activated (segment.stop is no longer -1) */
|
|
while (GST_CLOCK_TIME_IS_VALID (stream->segment.position) &&
|
|
pseudo_cur_time < (G_MAXUINT64 - gap_threshold) &&
|
|
pseudo_cur_time + gap_threshold < pseudo_target_time) {
|
|
GstEvent *gap =
|
|
gst_event_new_gap (stream->segment.position, gap_threshold);
|
|
GST_LOG_OBJECT (stream->pad, "Sending %" GST_PTR_FORMAT, gap);
|
|
|
|
gst_pad_push_event (stream->pad, gap);
|
|
stream->segment.position += gap_threshold;
|
|
pseudo_cur_time += gap_threshold;
|
|
}
|
|
}
|
|
}
|
|
|
|
stream = target_stream;
|
|
|
|
gst_qtdemux_stream_check_and_change_stsd_index (qtdemux, stream);
|
|
if (stream->new_caps) {
|
|
gst_qtdemux_configure_stream (qtdemux, stream);
|
|
qtdemux_do_allocation (stream, qtdemux);
|
|
}
|
|
|
|
/* If we're doing a keyframe-only trickmode, only push keyframes on video streams */
|
|
if (G_UNLIKELY (qtdemux->segment.
|
|
flags & GST_SEGMENT_FLAG_TRICKMODE_KEY_UNITS)) {
|
|
if (stream->subtype == FOURCC_vide) {
|
|
if (!keyframe) {
|
|
GST_LOG_OBJECT (qtdemux, "Skipping non-keyframe on track-id %u",
|
|
stream->track_id);
|
|
goto next;
|
|
} else if (qtdemux->trickmode_interval > 0) {
|
|
GstClockTimeDiff interval;
|
|
|
|
if (qtdemux->segment.rate > 0)
|
|
interval = stream->time_position - stream->last_keyframe_dts;
|
|
else
|
|
interval = stream->last_keyframe_dts - stream->time_position;
|
|
|
|
if (GST_CLOCK_TIME_IS_VALID (stream->last_keyframe_dts)
|
|
&& interval < qtdemux->trickmode_interval) {
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"Skipping keyframe within interval on track-id %u",
|
|
stream->track_id);
|
|
goto next;
|
|
} else {
|
|
stream->last_keyframe_dts = stream->time_position;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"pushing from track-id %u, empty %d offset %" G_GUINT64_FORMAT
|
|
", size %d, dts=%" GST_TIME_FORMAT ", pts=%" GST_TIME_FORMAT
|
|
", duration %" GST_TIME_FORMAT, stream->track_id, empty, offset,
|
|
sample_size, GST_TIME_ARGS (dts), GST_TIME_ARGS (pts),
|
|
GST_TIME_ARGS (duration));
|
|
|
|
if (G_UNLIKELY (empty)) {
|
|
/* empty segment, push a gap if there's a second or more
|
|
* difference and move to the next one */
|
|
if ((pts + duration - stream->segment.position) >= GST_SECOND)
|
|
gst_pad_push_event (stream->pad, gst_event_new_gap (pts, duration));
|
|
stream->segment.position = pts + duration;
|
|
goto next;
|
|
}
|
|
|
|
/* hmm, empty sample, skip and move to next sample */
|
|
if (G_UNLIKELY (sample_size <= 0))
|
|
goto next;
|
|
|
|
/* last pushed sample was out of boundary, goto next sample */
|
|
if (G_UNLIKELY (GST_PAD_LAST_FLOW_RETURN (stream->pad) == GST_FLOW_EOS))
|
|
goto next;
|
|
|
|
if (stream->max_buffer_size != 0 && sample_size > stream->max_buffer_size) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"size %d larger than stream max_buffer_size %d, trimming",
|
|
sample_size, stream->max_buffer_size);
|
|
size =
|
|
MIN (sample_size - stream->offset_in_sample, stream->max_buffer_size);
|
|
} else if (stream->min_buffer_size != 0 && stream->offset_in_sample == 0
|
|
&& sample_size < stream->min_buffer_size) {
|
|
guint start_sample_index = stream->sample_index;
|
|
guint accumulated_size = sample_size;
|
|
guint64 expected_next_offset = offset + sample_size;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"size %d smaller than stream min_buffer_size %d, combining with the next",
|
|
sample_size, stream->min_buffer_size);
|
|
|
|
while (stream->sample_index < stream->to_sample
|
|
&& stream->sample_index + 1 < stream->n_samples) {
|
|
const QtDemuxSample *next_sample;
|
|
|
|
/* Increment temporarily */
|
|
stream->sample_index++;
|
|
|
|
/* Failed to parse sample so let's go back to the previous one that was
|
|
* still successful */
|
|
if (!qtdemux_parse_samples (qtdemux, stream, stream->sample_index)) {
|
|
stream->sample_index--;
|
|
break;
|
|
}
|
|
|
|
next_sample = &stream->samples[stream->sample_index];
|
|
|
|
/* Not contiguous with the previous sample so let's go back to the
|
|
* previous one that was still successful */
|
|
if (next_sample->offset != expected_next_offset) {
|
|
stream->sample_index--;
|
|
break;
|
|
}
|
|
|
|
accumulated_size += next_sample->size;
|
|
expected_next_offset += next_sample->size;
|
|
if (accumulated_size >= stream->min_buffer_size)
|
|
break;
|
|
}
|
|
|
|
num_samples = stream->sample_index + 1 - start_sample_index;
|
|
stream->sample_index = start_sample_index;
|
|
GST_DEBUG_OBJECT (qtdemux, "Pulling %u samples of size %u at once",
|
|
num_samples, accumulated_size);
|
|
size = accumulated_size;
|
|
} else {
|
|
size = sample_size;
|
|
}
|
|
|
|
if (qtdemux->cenc_aux_info_offset > 0) {
|
|
GstMapInfo map;
|
|
GstByteReader br;
|
|
GstBuffer *aux_info = NULL;
|
|
|
|
/* pull the data stored before the sample */
|
|
ret =
|
|
gst_qtdemux_pull_atom (qtdemux, qtdemux->offset,
|
|
offset + stream->offset_in_sample - qtdemux->offset, &aux_info);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
|
goto beach;
|
|
gst_buffer_map (aux_info, &map, GST_MAP_READ);
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing cenc auxiliary info");
|
|
gst_byte_reader_init (&br, map.data + 8, map.size);
|
|
if (!qtdemux_parse_cenc_aux_info (qtdemux, stream, &br,
|
|
qtdemux->cenc_aux_info_sizes, qtdemux->cenc_aux_sample_count)) {
|
|
GST_ERROR_OBJECT (qtdemux, "failed to parse cenc auxiliary info");
|
|
gst_buffer_unmap (aux_info, &map);
|
|
gst_buffer_unref (aux_info);
|
|
ret = GST_FLOW_ERROR;
|
|
goto beach;
|
|
}
|
|
gst_buffer_unmap (aux_info, &map);
|
|
gst_buffer_unref (aux_info);
|
|
}
|
|
|
|
GST_LOG_OBJECT (qtdemux, "reading %d bytes @ %" G_GUINT64_FORMAT, size,
|
|
offset);
|
|
|
|
if (stream->use_allocator) {
|
|
/* if we have a per-stream allocator, use it */
|
|
buf = gst_buffer_new_allocate (stream->allocator, size, &stream->params);
|
|
}
|
|
|
|
ret = gst_qtdemux_pull_atom (qtdemux, offset + stream->offset_in_sample,
|
|
size, &buf);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
|
goto beach;
|
|
|
|
/* Update for both splitting and combining of samples */
|
|
if (size != sample_size) {
|
|
pts += gst_util_uint64_scale_int (GST_SECOND,
|
|
stream->offset_in_sample / CUR_STREAM (stream)->bytes_per_frame,
|
|
stream->timescale);
|
|
dts +=
|
|
gst_util_uint64_scale_int (GST_SECOND,
|
|
stream->offset_in_sample / CUR_STREAM (stream)->bytes_per_frame,
|
|
stream->timescale);
|
|
duration =
|
|
gst_util_uint64_scale_int (GST_SECOND,
|
|
size / CUR_STREAM (stream)->bytes_per_frame, stream->timescale);
|
|
}
|
|
|
|
ret = gst_qtdemux_decorate_and_push_buffer (qtdemux, stream, buf,
|
|
dts, pts, duration, keyframe, min_time, offset);
|
|
|
|
if (size < sample_size) {
|
|
QtDemuxSample *sample = &stream->samples[stream->sample_index];
|
|
QtDemuxSegment *segment = &stream->segments[stream->segment_index];
|
|
|
|
GstClockTime time_position = QTSTREAMTIME_TO_GSTTIME (stream,
|
|
sample->timestamp +
|
|
stream->offset_in_sample / CUR_STREAM (stream)->bytes_per_frame);
|
|
if (time_position >= segment->media_start) {
|
|
/* inside the segment, update time_position, looks very familiar to
|
|
* GStreamer segments, doesn't it? */
|
|
stream->time_position = (time_position - segment->media_start) +
|
|
segment->time;
|
|
} else {
|
|
/* not yet in segment, time does not yet increment. This means
|
|
* that we are still prerolling keyframes to the decoder so it can
|
|
* decode the first sample of the segment. */
|
|
stream->time_position = segment->time;
|
|
}
|
|
} else if (size > sample_size) {
|
|
/* Increase to the last sample we already pulled so that advancing
|
|
* below brings us to the next sample we need to pull */
|
|
stream->sample_index += num_samples - 1;
|
|
}
|
|
|
|
/* combine flows */
|
|
GST_OBJECT_LOCK (qtdemux);
|
|
ret = gst_qtdemux_combine_flows (qtdemux, stream, ret);
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
/* ignore unlinked, we will not push on the pad anymore and we will EOS when
|
|
* we have no more data for the pad to push */
|
|
if (ret == GST_FLOW_EOS)
|
|
ret = GST_FLOW_OK;
|
|
|
|
stream->offset_in_sample += size;
|
|
if (stream->offset_in_sample >= sample_size) {
|
|
gst_qtdemux_advance_sample (qtdemux, stream);
|
|
}
|
|
goto beach;
|
|
|
|
next:
|
|
gst_qtdemux_advance_sample (qtdemux, stream);
|
|
|
|
beach:
|
|
return ret;
|
|
|
|
/* special cases */
|
|
eos:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "No samples left for any streams - EOS");
|
|
ret = GST_FLOW_EOS;
|
|
goto beach;
|
|
}
|
|
eos_stream:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "No samples left for stream");
|
|
/* EOS will be raised if all are EOS */
|
|
ret = GST_FLOW_OK;
|
|
goto beach;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_loop (GstPad * pad)
|
|
{
|
|
GstQTDemux *qtdemux;
|
|
guint64 cur_offset;
|
|
GstFlowReturn ret;
|
|
|
|
qtdemux = GST_QTDEMUX (gst_pad_get_parent (pad));
|
|
|
|
cur_offset = qtdemux->offset;
|
|
GST_LOG_OBJECT (qtdemux, "loop at position %" G_GUINT64_FORMAT ", state %s",
|
|
cur_offset, qt_demux_state_string (qtdemux->state));
|
|
|
|
switch (qtdemux->state) {
|
|
case QTDEMUX_STATE_INITIAL:
|
|
case QTDEMUX_STATE_HEADER:
|
|
ret = gst_qtdemux_loop_state_header (qtdemux);
|
|
break;
|
|
case QTDEMUX_STATE_MOVIE:
|
|
ret = gst_qtdemux_loop_state_movie (qtdemux);
|
|
if (qtdemux->segment.rate < 0 && ret == GST_FLOW_EOS) {
|
|
ret = gst_qtdemux_seek_to_previous_keyframe (qtdemux);
|
|
}
|
|
break;
|
|
default:
|
|
/* ouch */
|
|
goto invalid_state;
|
|
}
|
|
|
|
/* if something went wrong, pause */
|
|
if (ret != GST_FLOW_OK)
|
|
goto pause;
|
|
|
|
done:
|
|
gst_object_unref (qtdemux);
|
|
return;
|
|
|
|
/* ERRORS */
|
|
invalid_state:
|
|
{
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, FAILED,
|
|
(NULL), ("streaming stopped, invalid state"));
|
|
gst_pad_pause_task (pad);
|
|
gst_qtdemux_push_event (qtdemux, gst_event_new_eos ());
|
|
goto done;
|
|
}
|
|
pause:
|
|
{
|
|
const gchar *reason = gst_flow_get_name (ret);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "pausing task, reason %s", reason);
|
|
|
|
gst_pad_pause_task (pad);
|
|
|
|
/* fatal errors need special actions */
|
|
/* check EOS */
|
|
if (ret == GST_FLOW_EOS) {
|
|
if (QTDEMUX_N_STREAMS (qtdemux) == 0) {
|
|
/* we have no streams, post an error */
|
|
gst_qtdemux_post_no_playable_stream_error (qtdemux);
|
|
}
|
|
if (qtdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
|
|
gint64 stop;
|
|
|
|
if ((stop = qtdemux->segment.stop) == -1)
|
|
stop = qtdemux->segment.duration;
|
|
|
|
if (qtdemux->segment.rate >= 0) {
|
|
GstMessage *message;
|
|
GstEvent *event;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "Sending segment done, at end of segment");
|
|
message = gst_message_new_segment_done (GST_OBJECT_CAST (qtdemux),
|
|
GST_FORMAT_TIME, stop);
|
|
event = gst_event_new_segment_done (GST_FORMAT_TIME, stop);
|
|
if (qtdemux->segment_seqnum != GST_SEQNUM_INVALID) {
|
|
gst_message_set_seqnum (message, qtdemux->segment_seqnum);
|
|
gst_event_set_seqnum (event, qtdemux->segment_seqnum);
|
|
}
|
|
gst_element_post_message (GST_ELEMENT_CAST (qtdemux), message);
|
|
gst_qtdemux_push_event (qtdemux, event);
|
|
} else {
|
|
GstMessage *message;
|
|
GstEvent *event;
|
|
|
|
/* For Reverse Playback */
|
|
GST_LOG_OBJECT (qtdemux, "Sending segment done, at start of segment");
|
|
message = gst_message_new_segment_done (GST_OBJECT_CAST (qtdemux),
|
|
GST_FORMAT_TIME, qtdemux->segment.start);
|
|
event = gst_event_new_segment_done (GST_FORMAT_TIME,
|
|
qtdemux->segment.start);
|
|
if (qtdemux->segment_seqnum != GST_SEQNUM_INVALID) {
|
|
gst_message_set_seqnum (message, qtdemux->segment_seqnum);
|
|
gst_event_set_seqnum (event, qtdemux->segment_seqnum);
|
|
}
|
|
gst_element_post_message (GST_ELEMENT_CAST (qtdemux), message);
|
|
gst_qtdemux_push_event (qtdemux, event);
|
|
}
|
|
} else {
|
|
GstEvent *event;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "Sending EOS at end of segment");
|
|
event = gst_event_new_eos ();
|
|
if (qtdemux->segment_seqnum != GST_SEQNUM_INVALID)
|
|
gst_event_set_seqnum (event, qtdemux->segment_seqnum);
|
|
gst_qtdemux_push_event (qtdemux, event);
|
|
}
|
|
} else if (ret == GST_FLOW_NOT_LINKED || ret < GST_FLOW_EOS) {
|
|
GST_ELEMENT_FLOW_ERROR (qtdemux, ret);
|
|
gst_qtdemux_push_event (qtdemux, gst_event_new_eos ());
|
|
}
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* has_next_entry
|
|
*
|
|
* Returns if there are samples to be played.
|
|
*/
|
|
static gboolean
|
|
has_next_entry (GstQTDemux * demux)
|
|
{
|
|
QtDemuxStream *stream;
|
|
gint i;
|
|
|
|
GST_DEBUG_OBJECT (demux, "Checking if there are samples not played yet");
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (demux); i++) {
|
|
stream = QTDEMUX_NTH_STREAM (demux, i);
|
|
|
|
if (stream->sample_index == -1) {
|
|
stream->sample_index = 0;
|
|
stream->offset_in_sample = 0;
|
|
}
|
|
|
|
if (stream->sample_index >= stream->n_samples) {
|
|
GST_LOG_OBJECT (demux, "track-id %u samples exhausted", stream->track_id);
|
|
continue;
|
|
}
|
|
GST_DEBUG_OBJECT (demux, "Found a sample");
|
|
return TRUE;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "There wasn't any next sample");
|
|
return FALSE;
|
|
}
|
|
|
|
/*
|
|
* next_entry_size
|
|
*
|
|
* Returns the size of the first entry at the current offset.
|
|
* If -1, there are none (which means EOS or empty file).
|
|
*/
|
|
static guint64
|
|
next_entry_size (GstQTDemux * demux)
|
|
{
|
|
QtDemuxStream *stream, *target_stream = NULL;
|
|
guint64 smalloffs = (guint64) - 1;
|
|
QtDemuxSample *sample;
|
|
gint i;
|
|
|
|
GST_LOG_OBJECT (demux, "Finding entry at offset %" G_GUINT64_FORMAT,
|
|
demux->offset);
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (demux); i++) {
|
|
stream = QTDEMUX_NTH_STREAM (demux, i);
|
|
|
|
if (stream->sample_index == -1) {
|
|
stream->sample_index = 0;
|
|
stream->offset_in_sample = 0;
|
|
}
|
|
|
|
if (stream->sample_index >= stream->n_samples) {
|
|
GST_LOG_OBJECT (demux, "track-id %u samples exhausted", stream->track_id);
|
|
continue;
|
|
}
|
|
|
|
if (!qtdemux_parse_samples (demux, stream, stream->sample_index)) {
|
|
GST_LOG_OBJECT (demux, "Parsing of index %u from stbl atom failed!",
|
|
stream->sample_index);
|
|
return -1;
|
|
}
|
|
|
|
sample = &stream->samples[stream->sample_index];
|
|
|
|
GST_LOG_OBJECT (demux,
|
|
"Checking track-id %u (sample_index:%d / offset:%" G_GUINT64_FORMAT
|
|
" / size:%" G_GUINT32_FORMAT ")", stream->track_id,
|
|
stream->sample_index, sample->offset, sample->size);
|
|
|
|
if (((smalloffs == -1)
|
|
|| (sample->offset < smalloffs)) && (sample->size)) {
|
|
smalloffs = sample->offset;
|
|
target_stream = stream;
|
|
}
|
|
}
|
|
|
|
if (!target_stream)
|
|
return -1;
|
|
|
|
GST_LOG_OBJECT (demux,
|
|
"track-id %u offset %" G_GUINT64_FORMAT " demux->offset :%"
|
|
G_GUINT64_FORMAT, target_stream->track_id, smalloffs, demux->offset);
|
|
|
|
stream = target_stream;
|
|
sample = &stream->samples[stream->sample_index];
|
|
|
|
if (sample->offset >= demux->offset) {
|
|
demux->todrop = sample->offset - demux->offset;
|
|
return sample->size + demux->todrop;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"There wasn't any entry at offset %" G_GUINT64_FORMAT, demux->offset);
|
|
return -1;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_post_progress (GstQTDemux * demux, gint num, gint denom)
|
|
{
|
|
gint perc = (gint) ((gdouble) num * 100.0 / (gdouble) denom);
|
|
|
|
gst_element_post_message (GST_ELEMENT_CAST (demux),
|
|
gst_message_new_element (GST_OBJECT_CAST (demux),
|
|
gst_structure_new ("progress", "percent", G_TYPE_INT, perc, NULL)));
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_seek_offset (GstQTDemux * demux, guint64 offset)
|
|
{
|
|
GstEvent *event;
|
|
gboolean res = 0;
|
|
|
|
GST_DEBUG_OBJECT (demux, "Seeking to %" G_GUINT64_FORMAT, offset);
|
|
|
|
event =
|
|
gst_event_new_seek (1.0, GST_FORMAT_BYTES,
|
|
GST_SEEK_FLAG_FLUSH | GST_SEEK_FLAG_ACCURATE, GST_SEEK_TYPE_SET, offset,
|
|
GST_SEEK_TYPE_NONE, -1);
|
|
|
|
/* store seqnum to drop flush events, they don't need to reach downstream */
|
|
demux->offset_seek_seqnum = gst_event_get_seqnum (event);
|
|
res = gst_pad_push_event (demux->sinkpad, event);
|
|
demux->offset_seek_seqnum = GST_SEQNUM_INVALID;
|
|
|
|
return res;
|
|
}
|
|
|
|
/* check for seekable upstream, above and beyond a mere query */
|
|
static void
|
|
gst_qtdemux_check_seekability (GstQTDemux * demux)
|
|
{
|
|
GstQuery *query;
|
|
gboolean seekable = FALSE;
|
|
gint64 start = -1, stop = -1;
|
|
|
|
if (demux->upstream_size)
|
|
return;
|
|
|
|
if (demux->upstream_format_is_time)
|
|
return;
|
|
|
|
query = gst_query_new_seeking (GST_FORMAT_BYTES);
|
|
if (!gst_pad_peer_query (demux->sinkpad, query)) {
|
|
GST_DEBUG_OBJECT (demux, "seeking query failed");
|
|
goto done;
|
|
}
|
|
|
|
gst_query_parse_seeking (query, NULL, &seekable, &start, &stop);
|
|
|
|
/* try harder to query upstream size if we didn't get it the first time */
|
|
if (seekable && stop == -1) {
|
|
GST_DEBUG_OBJECT (demux, "doing duration query to fix up unset stop");
|
|
gst_pad_peer_query_duration (demux->sinkpad, GST_FORMAT_BYTES, &stop);
|
|
}
|
|
|
|
/* if upstream doesn't know the size, it's likely that it's not seekable in
|
|
* practice even if it technically may be seekable */
|
|
if (seekable && (start != 0 || stop <= start)) {
|
|
GST_DEBUG_OBJECT (demux, "seekable but unknown start/stop -> disable");
|
|
seekable = FALSE;
|
|
}
|
|
|
|
done:
|
|
gst_query_unref (query);
|
|
|
|
GST_DEBUG_OBJECT (demux, "seekable: %d (%" G_GUINT64_FORMAT " - %"
|
|
G_GUINT64_FORMAT ")", seekable, start, stop);
|
|
demux->upstream_seekable = seekable;
|
|
demux->upstream_size = seekable ? stop : -1;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_drop_data (GstQTDemux * demux, gint bytes)
|
|
{
|
|
g_return_if_fail (bytes <= demux->todrop);
|
|
|
|
GST_LOG_OBJECT (demux, "Dropping %d bytes", bytes);
|
|
gst_adapter_flush (demux->adapter, bytes);
|
|
demux->neededbytes -= bytes;
|
|
demux->offset += bytes;
|
|
demux->todrop -= bytes;
|
|
}
|
|
|
|
/* PUSH-MODE only: Send a segment, if not done already. */
|
|
static void
|
|
gst_qtdemux_check_send_pending_segment (GstQTDemux * demux)
|
|
{
|
|
if (G_UNLIKELY (demux->need_segment)) {
|
|
gint i;
|
|
|
|
if (!demux->upstream_format_is_time) {
|
|
gst_qtdemux_map_and_push_segments (demux, &demux->segment);
|
|
} else {
|
|
GstEvent *segment_event;
|
|
segment_event = gst_event_new_segment (&demux->segment);
|
|
if (demux->segment_seqnum != GST_SEQNUM_INVALID)
|
|
gst_event_set_seqnum (segment_event, demux->segment_seqnum);
|
|
gst_qtdemux_push_event (demux, segment_event);
|
|
}
|
|
|
|
demux->need_segment = FALSE;
|
|
|
|
/* clear to send tags on all streams */
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (demux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (demux, i);
|
|
gst_qtdemux_push_tags (demux, stream);
|
|
if (CUR_STREAM (stream)->sparse) {
|
|
GST_INFO_OBJECT (demux, "Sending gap event on stream %d", i);
|
|
gst_pad_push_event (stream->pad,
|
|
gst_event_new_gap (stream->segment.position, GST_CLOCK_TIME_NONE));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Used for push mode only. */
|
|
static void
|
|
gst_qtdemux_send_gap_for_segment (GstQTDemux * demux,
|
|
QtDemuxStream * stream, gint segment_index, GstClockTime pos)
|
|
{
|
|
GstClockTime ts, dur;
|
|
|
|
ts = pos;
|
|
dur =
|
|
stream->segments[segment_index].duration - (pos -
|
|
stream->segments[segment_index].time);
|
|
stream->time_position += dur;
|
|
|
|
/* Only gaps with a duration of at least one second are propagated.
|
|
* Same workaround as in pull mode.
|
|
* (See 2e45926a96ec5298c6ef29bf912e5e6a06dc3e0e) */
|
|
if (dur >= GST_SECOND) {
|
|
GstEvent *gap;
|
|
gap = gst_event_new_gap (ts, dur);
|
|
|
|
GST_DEBUG_OBJECT (stream->pad, "Pushing gap for empty "
|
|
"segment: %" GST_PTR_FORMAT, gap);
|
|
gst_pad_push_event (stream->pad, gap);
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_qtdemux_chain (GstPad * sinkpad, GstObject * parent, GstBuffer * inbuf)
|
|
{
|
|
GstQTDemux *demux;
|
|
|
|
demux = GST_QTDEMUX (parent);
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"Received buffer pts:%" GST_TIME_FORMAT " dts:%" GST_TIME_FORMAT
|
|
" offset:%" G_GUINT64_FORMAT " size:%" G_GSIZE_FORMAT " demux offset:%"
|
|
G_GUINT64_FORMAT, GST_TIME_ARGS (GST_BUFFER_PTS (inbuf)),
|
|
GST_TIME_ARGS (GST_BUFFER_DTS (inbuf)), GST_BUFFER_OFFSET (inbuf),
|
|
gst_buffer_get_size (inbuf), demux->offset);
|
|
|
|
if (GST_BUFFER_FLAG_IS_SET (inbuf, GST_BUFFER_FLAG_DISCONT)) {
|
|
gboolean is_gap_input = FALSE;
|
|
gint i;
|
|
|
|
GST_DEBUG_OBJECT (demux, "Got DISCONT, marking all streams as DISCONT");
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (demux); i++) {
|
|
QTDEMUX_NTH_STREAM (demux, i)->discont = TRUE;
|
|
}
|
|
|
|
/* Check if we can land back on our feet in the case where upstream is
|
|
* handling the seeking/pushing of samples with gaps in between (like
|
|
* in the case of trick-mode DASH for example) */
|
|
if (demux->upstream_format_is_time
|
|
&& GST_BUFFER_OFFSET (inbuf) != GST_BUFFER_OFFSET_NONE) {
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (demux); i++) {
|
|
guint32 res;
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (demux, i);
|
|
GST_LOG_OBJECT (demux,
|
|
"track-id #%u , checking if offset %" G_GUINT64_FORMAT
|
|
" is a sample start", stream->track_id, GST_BUFFER_OFFSET (inbuf));
|
|
res =
|
|
gst_qtdemux_find_index_for_given_media_offset_linear (demux,
|
|
stream, GST_BUFFER_OFFSET (inbuf));
|
|
if (res != -1) {
|
|
QtDemuxSample *sample = &stream->samples[res];
|
|
GST_LOG_OBJECT (demux,
|
|
"Checking if sample %d from track-id %u is valid (offset:%"
|
|
G_GUINT64_FORMAT " size:%" G_GUINT32_FORMAT ")", res,
|
|
stream->track_id, sample->offset, sample->size);
|
|
if (sample->offset == GST_BUFFER_OFFSET (inbuf)) {
|
|
GST_LOG_OBJECT (demux,
|
|
"new buffer corresponds to a valid sample : %" G_GUINT32_FORMAT,
|
|
res);
|
|
is_gap_input = TRUE;
|
|
/* We can go back to standard playback mode */
|
|
demux->state = QTDEMUX_STATE_MOVIE;
|
|
/* Remember which sample this stream is at */
|
|
stream->sample_index = res;
|
|
/* Finally update all push-based values to the expected values */
|
|
demux->neededbytes = stream->samples[res].size;
|
|
demux->offset = GST_BUFFER_OFFSET (inbuf);
|
|
demux->mdatleft =
|
|
demux->mdatsize - demux->offset + demux->mdatoffset;
|
|
demux->todrop = 0;
|
|
}
|
|
}
|
|
}
|
|
if (!is_gap_input) {
|
|
GST_DEBUG_OBJECT (demux, "Resetting, actual DISCONT");
|
|
/* Reset state if it's a real discont */
|
|
demux->neededbytes = 16;
|
|
demux->state = QTDEMUX_STATE_INITIAL;
|
|
demux->offset = GST_BUFFER_OFFSET (inbuf);
|
|
gst_adapter_clear (demux->adapter);
|
|
}
|
|
}
|
|
/* Reverse fragmented playback, need to flush all we have before
|
|
* consuming a new fragment.
|
|
* The samples array have the timestamps calculated by accumulating the
|
|
* durations but this won't work for reverse playback of fragments as
|
|
* the timestamps of a subsequent fragment should be smaller than the
|
|
* previously received one. */
|
|
if (!is_gap_input && demux->fragmented && demux->segment.rate < 0) {
|
|
gst_qtdemux_process_adapter (demux, TRUE);
|
|
g_ptr_array_foreach (demux->active_streams,
|
|
(GFunc) gst_qtdemux_stream_flush_samples_data, NULL);
|
|
}
|
|
}
|
|
|
|
gst_adapter_push (demux->adapter, inbuf);
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"pushing in inbuf %p, neededbytes:%u, available:%" G_GSIZE_FORMAT, inbuf,
|
|
demux->neededbytes, gst_adapter_available (demux->adapter));
|
|
|
|
return gst_qtdemux_process_adapter (demux, FALSE);
|
|
}
|
|
|
|
static guint64
|
|
gst_segment_to_stream_time_clamped (const GstSegment * segment,
|
|
guint64 position)
|
|
{
|
|
guint64 segment_stream_time_start;
|
|
guint64 segment_stream_time_stop = GST_CLOCK_TIME_NONE;
|
|
guint64 stream_pts_unsigned;
|
|
int ret;
|
|
|
|
g_return_val_if_fail (segment != NULL, GST_CLOCK_TIME_NONE);
|
|
g_return_val_if_fail (segment->format == GST_FORMAT_TIME,
|
|
GST_CLOCK_TIME_NONE);
|
|
|
|
segment_stream_time_start = segment->time;
|
|
if (segment->stop != GST_CLOCK_TIME_NONE)
|
|
segment_stream_time_stop =
|
|
gst_segment_to_stream_time (segment, GST_FORMAT_TIME, segment->stop);
|
|
|
|
ret =
|
|
gst_segment_to_stream_time_full (segment, GST_FORMAT_TIME, position,
|
|
&stream_pts_unsigned);
|
|
/* ret == 0 if the segment is invalid (either position, segment->time or the segment start are -1). */
|
|
g_return_val_if_fail (ret != 0, GST_CLOCK_TIME_NONE);
|
|
|
|
if (ret == -1 || stream_pts_unsigned < segment_stream_time_start) {
|
|
/* Negative or prior to segment start stream time, clamp to segment start. */
|
|
return segment_stream_time_start;
|
|
} else if (segment_stream_time_stop != GST_CLOCK_TIME_NONE
|
|
&& stream_pts_unsigned > segment_stream_time_stop) {
|
|
/* Clamp to segment end. */
|
|
return segment_stream_time_stop;
|
|
} else {
|
|
return stream_pts_unsigned;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_qtdemux_process_adapter (GstQTDemux * demux, gboolean force)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
/* we never really mean to buffer that much */
|
|
if (demux->neededbytes == -1) {
|
|
goto eos;
|
|
}
|
|
|
|
while (((gst_adapter_available (demux->adapter)) >= demux->neededbytes) &&
|
|
(ret == GST_FLOW_OK || (ret == GST_FLOW_NOT_LINKED && force))) {
|
|
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
{
|
|
guint64 discont_offset, distance_from_discont;
|
|
|
|
discont_offset = gst_adapter_offset_at_discont (demux->adapter);
|
|
distance_from_discont =
|
|
gst_adapter_distance_from_discont (demux->adapter);
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"state:%s , demux->neededbytes:%d, demux->offset:%" G_GUINT64_FORMAT
|
|
" adapter offset :%" G_GUINT64_FORMAT " (+ %" G_GUINT64_FORMAT
|
|
" bytes)", qt_demux_state_string (demux->state), demux->neededbytes,
|
|
demux->offset, discont_offset, distance_from_discont);
|
|
}
|
|
#endif
|
|
|
|
switch (demux->state) {
|
|
case QTDEMUX_STATE_INITIAL:{
|
|
const guint8 *data;
|
|
guint32 fourcc;
|
|
guint64 size;
|
|
|
|
gst_qtdemux_check_seekability (demux);
|
|
|
|
data = gst_adapter_map (demux->adapter, demux->neededbytes);
|
|
|
|
/* get fourcc/length, set neededbytes */
|
|
extract_initial_length_and_fourcc ((guint8 *) data, demux->neededbytes,
|
|
&size, &fourcc);
|
|
gst_adapter_unmap (demux->adapter);
|
|
data = NULL;
|
|
GST_DEBUG_OBJECT (demux, "Peeking found [%" GST_FOURCC_FORMAT "] "
|
|
"size: %" G_GUINT64_FORMAT, GST_FOURCC_ARGS (fourcc), size);
|
|
if (size == 0) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
|
|
(_("This file is invalid and cannot be played.")),
|
|
("initial atom '%" GST_FOURCC_FORMAT "' has empty length",
|
|
GST_FOURCC_ARGS (fourcc)));
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
if (fourcc == FOURCC_mdat) {
|
|
gint next_entry = next_entry_size (demux);
|
|
if (QTDEMUX_N_STREAMS (demux) > 0 && (next_entry != -1
|
|
|| !demux->fragmented)) {
|
|
/* we have the headers, start playback */
|
|
demux->state = QTDEMUX_STATE_MOVIE;
|
|
demux->neededbytes = next_entry;
|
|
demux->mdatleft = size;
|
|
demux->mdatsize = demux->mdatleft;
|
|
} else {
|
|
/* no headers yet, try to get them */
|
|
guint bs;
|
|
gboolean res;
|
|
guint64 old, target;
|
|
|
|
buffer_data:
|
|
old = demux->offset;
|
|
target = old + size;
|
|
|
|
/* try to jump over the atom with a seek */
|
|
/* only bother if it seems worth doing so,
|
|
* and avoids possible upstream/server problems */
|
|
if (demux->upstream_seekable &&
|
|
demux->upstream_size > 4 * (1 << 20)) {
|
|
res = qtdemux_seek_offset (demux, target);
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "skipping seek");
|
|
res = FALSE;
|
|
}
|
|
|
|
if (res) {
|
|
GST_DEBUG_OBJECT (demux, "seek success");
|
|
/* remember the offset fo the first mdat so we can seek back to it
|
|
* after we have the headers */
|
|
if (fourcc == FOURCC_mdat && demux->first_mdat == -1) {
|
|
demux->first_mdat = old;
|
|
GST_DEBUG_OBJECT (demux, "first mdat at %" G_GUINT64_FORMAT,
|
|
demux->first_mdat);
|
|
}
|
|
/* seek worked, continue reading */
|
|
demux->offset = target;
|
|
demux->neededbytes = 16;
|
|
demux->state = QTDEMUX_STATE_INITIAL;
|
|
} else {
|
|
/* seek failed, need to buffer */
|
|
demux->offset = old;
|
|
GST_DEBUG_OBJECT (demux, "seek failed/skipped");
|
|
/* there may be multiple mdat (or alike) buffers */
|
|
/* sanity check */
|
|
if (demux->mdatbuffer)
|
|
bs = gst_buffer_get_size (demux->mdatbuffer);
|
|
else
|
|
bs = 0;
|
|
if (size + bs > 10 * (1 << 20))
|
|
goto no_moov;
|
|
demux->state = QTDEMUX_STATE_BUFFER_MDAT;
|
|
demux->neededbytes = size;
|
|
if (!demux->mdatbuffer)
|
|
demux->mdatoffset = demux->offset;
|
|
}
|
|
}
|
|
} else if (G_UNLIKELY (size > QTDEMUX_MAX_ATOM_SIZE)) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
|
|
(_("This file is invalid and cannot be played.")),
|
|
("atom %" GST_FOURCC_FORMAT " has bogus size %" G_GUINT64_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc), size));
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
} else {
|
|
/* this means we already started buffering and still no moov header,
|
|
* let's continue buffering everything till we get moov */
|
|
if (demux->mdatbuffer && !(fourcc == FOURCC_moov
|
|
|| fourcc == FOURCC_moof))
|
|
goto buffer_data;
|
|
demux->neededbytes = size;
|
|
demux->state = QTDEMUX_STATE_HEADER;
|
|
}
|
|
break;
|
|
}
|
|
case QTDEMUX_STATE_HEADER:{
|
|
const guint8 *data;
|
|
guint32 fourcc;
|
|
|
|
GST_DEBUG_OBJECT (demux, "In header");
|
|
|
|
data = gst_adapter_map (demux->adapter, demux->neededbytes);
|
|
|
|
/* parse the header */
|
|
extract_initial_length_and_fourcc (data, demux->neededbytes, NULL,
|
|
&fourcc);
|
|
if (fourcc == FOURCC_moov) {
|
|
/* in usual fragmented setup we could try to scan for more
|
|
* and end up at the the moov (after mdat) again */
|
|
if (demux->got_moov && QTDEMUX_N_STREAMS (demux) > 0 &&
|
|
(!demux->fragmented
|
|
|| demux->last_moov_offset == demux->offset)) {
|
|
GST_DEBUG_OBJECT (demux,
|
|
"Skipping moov atom as we have (this) one already");
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "Parsing [moov]");
|
|
|
|
if (demux->got_moov && demux->fragmented) {
|
|
GST_DEBUG_OBJECT (demux,
|
|
"Got a second moov, clean up data from old one");
|
|
if (demux->moov_node_compressed) {
|
|
g_node_destroy (demux->moov_node_compressed);
|
|
if (demux->moov_node)
|
|
g_free (demux->moov_node->data);
|
|
}
|
|
demux->moov_node_compressed = NULL;
|
|
if (demux->moov_node)
|
|
g_node_destroy (demux->moov_node);
|
|
demux->moov_node = NULL;
|
|
demux->start_utc_time = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
demux->last_moov_offset = demux->offset;
|
|
|
|
/* Update streams with new moov */
|
|
gst_qtdemux_stream_concat (demux,
|
|
demux->old_streams, demux->active_streams);
|
|
|
|
qtdemux_parse_moov (demux, data, demux->neededbytes);
|
|
qtdemux_node_dump (demux, demux->moov_node);
|
|
qtdemux_parse_tree (demux);
|
|
qtdemux_prepare_streams (demux);
|
|
QTDEMUX_EXPOSE_LOCK (demux);
|
|
qtdemux_expose_streams (demux);
|
|
QTDEMUX_EXPOSE_UNLOCK (demux);
|
|
|
|
demux->got_moov = TRUE;
|
|
|
|
gst_qtdemux_check_send_pending_segment (demux);
|
|
|
|
if (demux->moov_node_compressed) {
|
|
g_node_destroy (demux->moov_node_compressed);
|
|
g_free (demux->moov_node->data);
|
|
}
|
|
demux->moov_node_compressed = NULL;
|
|
g_node_destroy (demux->moov_node);
|
|
demux->moov_node = NULL;
|
|
GST_DEBUG_OBJECT (demux, "Finished parsing the header");
|
|
}
|
|
} else if (fourcc == FOURCC_moof) {
|
|
if ((demux->got_moov || demux->media_caps) && demux->fragmented) {
|
|
guint64 dist = 0;
|
|
GstClockTime prev_pts;
|
|
guint64 prev_offset;
|
|
guint64 adapter_discont_offset, adapter_discont_dist;
|
|
|
|
GST_DEBUG_OBJECT (demux, "Parsing [moof]");
|
|
|
|
/*
|
|
* The timestamp of the moof buffer is relevant as some scenarios
|
|
* won't have the initial timestamp in the atoms. Whenever a new
|
|
* buffer has started, we get that buffer's PTS and use it as a base
|
|
* timestamp for the trun entries.
|
|
*
|
|
* To keep track of the current buffer timestamp and starting point
|
|
* we use gst_adapter_prev_pts that gives us the PTS and the distance
|
|
* from the beginning of the buffer, with the distance and demux->offset
|
|
* we know if it is still the same buffer or not.
|
|
*/
|
|
prev_pts = gst_adapter_prev_pts (demux->adapter, &dist);
|
|
prev_offset = demux->offset - dist;
|
|
if (demux->fragment_start_offset == -1
|
|
|| prev_offset > demux->fragment_start_offset) {
|
|
demux->fragment_start_offset = prev_offset;
|
|
demux->fragment_start = prev_pts;
|
|
GST_DEBUG_OBJECT (demux,
|
|
"New fragment start found at: %" G_GUINT64_FORMAT " : %"
|
|
GST_TIME_FORMAT, demux->fragment_start_offset,
|
|
GST_TIME_ARGS (demux->fragment_start));
|
|
}
|
|
|
|
/* We can't use prev_offset() here because this would require
|
|
* upstream to set consistent and correct offsets on all buffers
|
|
* since the discont. Nothing ever did that in the past and we
|
|
* would break backwards compatibility here then.
|
|
* Instead take the offset we had at the last discont and count
|
|
* the bytes from there. This works with old code as there would
|
|
* be no discont between moov and moof, and also works with
|
|
* adaptivedemux which correctly sets offset and will set the
|
|
* DISCONT flag accordingly when needed.
|
|
*
|
|
* We also only do this for upstream TIME segments as otherwise
|
|
* there are potential backwards compatibility problems with
|
|
* seeking in PUSH mode and upstream providing inconsistent
|
|
* timestamps. */
|
|
adapter_discont_offset =
|
|
gst_adapter_offset_at_discont (demux->adapter);
|
|
adapter_discont_dist =
|
|
gst_adapter_distance_from_discont (demux->adapter);
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"demux offset %" G_GUINT64_FORMAT " adapter offset %"
|
|
G_GUINT64_FORMAT " (+ %" G_GUINT64_FORMAT " bytes)",
|
|
demux->offset, adapter_discont_offset, adapter_discont_dist);
|
|
|
|
if (demux->upstream_format_is_time) {
|
|
demux->moof_offset = adapter_discont_offset;
|
|
if (demux->moof_offset != GST_BUFFER_OFFSET_NONE)
|
|
demux->moof_offset += adapter_discont_dist;
|
|
if (demux->moof_offset == GST_BUFFER_OFFSET_NONE)
|
|
demux->moof_offset = demux->offset;
|
|
} else {
|
|
demux->moof_offset = demux->offset;
|
|
}
|
|
|
|
if (!qtdemux_parse_moof (demux, data, demux->neededbytes,
|
|
demux->moof_offset, NULL)) {
|
|
gst_adapter_unmap (demux->adapter);
|
|
ret = GST_FLOW_ERROR;
|
|
goto done;
|
|
}
|
|
|
|
/* in MSS we need to expose the pads after the first moof as we won't get a moov */
|
|
if (demux->variant == VARIANT_MSS_FRAGMENTED && !demux->exposed) {
|
|
QTDEMUX_EXPOSE_LOCK (demux);
|
|
qtdemux_expose_streams (demux);
|
|
QTDEMUX_EXPOSE_UNLOCK (demux);
|
|
}
|
|
|
|
gst_qtdemux_check_send_pending_segment (demux);
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "Discarding [moof]");
|
|
}
|
|
} else if (fourcc == FOURCC_ftyp) {
|
|
GST_DEBUG_OBJECT (demux, "Parsing [ftyp]");
|
|
qtdemux_parse_ftyp (demux, data, demux->neededbytes);
|
|
} else if (fourcc == FOURCC_uuid) {
|
|
GST_DEBUG_OBJECT (demux, "Parsing [uuid]");
|
|
qtdemux_parse_uuid (demux, data, demux->neededbytes);
|
|
} else if (fourcc == FOURCC_sidx) {
|
|
GST_DEBUG_OBJECT (demux, "Parsing [sidx]");
|
|
qtdemux_parse_sidx (demux, data, demux->neededbytes);
|
|
} else if (fourcc == FOURCC_meta) {
|
|
GNode *node, *child;
|
|
GstByteReader child_data;
|
|
|
|
node = g_node_new ((gpointer) data);
|
|
qtdemux_parse_node (demux, node, data, demux->neededbytes);
|
|
|
|
/* Parse ONVIF Export File Format CorrectStartTime box if available */
|
|
if ((child =
|
|
qtdemux_tree_get_child_by_type_full (node, FOURCC_cstb,
|
|
&child_data))) {
|
|
qtdemux_parse_cstb (demux, &child_data);
|
|
}
|
|
|
|
g_node_destroy (node);
|
|
} else {
|
|
switch (fourcc) {
|
|
case FOURCC_styp:
|
|
/* [styp] is like a [ftyp], but in fragment header. We ignore it for now
|
|
* FALLTHROUGH */
|
|
case FOURCC_skip:
|
|
case FOURCC_free:
|
|
/* [free] and [skip] are padding atoms */
|
|
GST_DEBUG_OBJECT (demux,
|
|
"Skipping fourcc while parsing header : %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
break;
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown fourcc while parsing header : %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
/* Let's jump that one and go back to initial state */
|
|
break;
|
|
}
|
|
}
|
|
gst_adapter_unmap (demux->adapter);
|
|
data = NULL;
|
|
|
|
if (demux->mdatbuffer && QTDEMUX_N_STREAMS (demux)) {
|
|
gsize remaining_data_size = 0;
|
|
|
|
/* the mdat was before the header */
|
|
GST_DEBUG_OBJECT (demux, "We have n_streams:%d and mdatbuffer:%p",
|
|
QTDEMUX_N_STREAMS (demux), demux->mdatbuffer);
|
|
/* restore our adapter/offset view of things with upstream;
|
|
* put preceding buffered data ahead of current moov data.
|
|
* This should also handle evil mdat, moov, mdat cases and alike */
|
|
gst_adapter_flush (demux->adapter, demux->neededbytes);
|
|
|
|
/* Store any remaining data after the mdat for later usage */
|
|
remaining_data_size = gst_adapter_available (demux->adapter);
|
|
if (remaining_data_size > 0) {
|
|
g_assert (demux->restoredata_buffer == NULL);
|
|
demux->restoredata_buffer =
|
|
gst_adapter_take_buffer (demux->adapter, remaining_data_size);
|
|
demux->restoredata_offset = demux->offset + demux->neededbytes;
|
|
GST_DEBUG_OBJECT (demux,
|
|
"Stored %" G_GSIZE_FORMAT " post mdat bytes at offset %"
|
|
G_GUINT64_FORMAT, remaining_data_size,
|
|
demux->restoredata_offset);
|
|
}
|
|
|
|
gst_adapter_push (demux->adapter, demux->mdatbuffer);
|
|
demux->mdatbuffer = NULL;
|
|
demux->offset = demux->mdatoffset;
|
|
demux->neededbytes = next_entry_size (demux);
|
|
demux->state = QTDEMUX_STATE_MOVIE;
|
|
demux->mdatleft = gst_adapter_available (demux->adapter);
|
|
demux->mdatsize = demux->mdatleft;
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "Carrying on normally");
|
|
gst_adapter_flush (demux->adapter, demux->neededbytes);
|
|
|
|
/* only go back to the mdat if there are samples to play */
|
|
if (demux->got_moov && demux->first_mdat != -1
|
|
&& has_next_entry (demux)) {
|
|
gboolean res;
|
|
|
|
/* we need to seek back */
|
|
res = qtdemux_seek_offset (demux, demux->first_mdat);
|
|
if (res) {
|
|
demux->offset = demux->first_mdat;
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "Seek back failed");
|
|
}
|
|
} else {
|
|
demux->offset += demux->neededbytes;
|
|
}
|
|
demux->neededbytes = 16;
|
|
demux->state = QTDEMUX_STATE_INITIAL;
|
|
}
|
|
|
|
break;
|
|
}
|
|
case QTDEMUX_STATE_BUFFER_MDAT:{
|
|
GstBuffer *buf;
|
|
guint8 fourcc[4];
|
|
|
|
GST_DEBUG_OBJECT (demux, "Got our buffer at offset %" G_GUINT64_FORMAT,
|
|
demux->offset);
|
|
buf = gst_adapter_take_buffer (demux->adapter, demux->neededbytes);
|
|
gst_buffer_extract (buf, 0, fourcc, 4);
|
|
GST_DEBUG_OBJECT (demux, "mdatbuffer starts with %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (QT_FOURCC (fourcc)));
|
|
if (demux->mdatbuffer)
|
|
demux->mdatbuffer = gst_buffer_append (demux->mdatbuffer, buf);
|
|
else
|
|
demux->mdatbuffer = buf;
|
|
demux->offset += demux->neededbytes;
|
|
demux->neededbytes = 16;
|
|
demux->state = QTDEMUX_STATE_INITIAL;
|
|
gst_qtdemux_post_progress (demux, 1, 1);
|
|
|
|
break;
|
|
}
|
|
case QTDEMUX_STATE_MOVIE:{
|
|
QtDemuxStream *stream = NULL;
|
|
QtDemuxSample *sample;
|
|
GstClockTime dts, pts, stream_pts, duration;
|
|
gboolean keyframe;
|
|
gint i;
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"BEGIN // in MOVIE for offset %" G_GUINT64_FORMAT, demux->offset);
|
|
|
|
if (demux->fragmented) {
|
|
GST_DEBUG_OBJECT (demux, "mdat remaining %" G_GUINT64_FORMAT,
|
|
demux->mdatleft);
|
|
if (G_LIKELY (demux->todrop < demux->mdatleft)) {
|
|
/* if needed data starts within this atom,
|
|
* then it should not exceed this atom */
|
|
if (G_UNLIKELY (demux->neededbytes > demux->mdatleft)) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
|
|
(_("This file is invalid and cannot be played.")),
|
|
("sample data crosses atom boundary"));
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
demux->mdatleft -= demux->neededbytes;
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "data atom emptied; resuming atom scan");
|
|
/* so we are dropping more than left in this atom */
|
|
gst_qtdemux_drop_data (demux, demux->mdatleft);
|
|
demux->mdatleft = 0;
|
|
|
|
/* need to resume atom parsing so we do not miss any other pieces */
|
|
demux->state = QTDEMUX_STATE_INITIAL;
|
|
demux->neededbytes = 16;
|
|
|
|
/* check if there was any stored post mdat data from previous buffers */
|
|
if (demux->restoredata_buffer) {
|
|
g_assert (gst_adapter_available (demux->adapter) == 0);
|
|
|
|
gst_adapter_push (demux->adapter, demux->restoredata_buffer);
|
|
demux->restoredata_buffer = NULL;
|
|
demux->offset = demux->restoredata_offset;
|
|
}
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (demux->todrop) {
|
|
if (demux->cenc_aux_info_offset > 0) {
|
|
GstByteReader br;
|
|
const guint8 *data;
|
|
|
|
GST_DEBUG_OBJECT (demux, "parsing cenc auxiliary info");
|
|
data = gst_adapter_map (demux->adapter, demux->todrop);
|
|
gst_byte_reader_init (&br, data + 8, demux->todrop);
|
|
if (!qtdemux_parse_cenc_aux_info (demux,
|
|
QTDEMUX_NTH_STREAM (demux, 0), &br,
|
|
demux->cenc_aux_info_sizes, demux->cenc_aux_sample_count)) {
|
|
GST_ERROR_OBJECT (demux, "failed to parse cenc auxiliary info");
|
|
ret = GST_FLOW_ERROR;
|
|
gst_adapter_unmap (demux->adapter);
|
|
g_free (demux->cenc_aux_info_sizes);
|
|
demux->cenc_aux_info_sizes = NULL;
|
|
goto done;
|
|
}
|
|
demux->cenc_aux_info_offset = 0;
|
|
g_free (demux->cenc_aux_info_sizes);
|
|
demux->cenc_aux_info_sizes = NULL;
|
|
gst_adapter_unmap (demux->adapter);
|
|
}
|
|
gst_qtdemux_drop_data (demux, demux->todrop);
|
|
}
|
|
|
|
/* first buffer? */
|
|
/* initial newsegment sent here after having added pads,
|
|
* possible others in sink_event */
|
|
gst_qtdemux_check_send_pending_segment (demux);
|
|
|
|
/* Figure out which stream this packet belongs to */
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (demux); i++) {
|
|
stream = QTDEMUX_NTH_STREAM (demux, i);
|
|
if (stream->sample_index >= stream->n_samples) {
|
|
/* reset to be checked below G_UNLIKELY (stream == NULL) */
|
|
stream = NULL;
|
|
continue;
|
|
}
|
|
GST_LOG_OBJECT (demux,
|
|
"Checking track-id %u (sample_index:%d / offset:%"
|
|
G_GUINT64_FORMAT " / size:%d)", stream->track_id,
|
|
stream->sample_index,
|
|
stream->samples[stream->sample_index].offset,
|
|
stream->samples[stream->sample_index].size);
|
|
|
|
if (stream->samples[stream->sample_index].offset == demux->offset)
|
|
break;
|
|
}
|
|
|
|
if (G_UNLIKELY (stream == NULL))
|
|
goto unknown_stream;
|
|
|
|
gst_qtdemux_stream_check_and_change_stsd_index (demux, stream);
|
|
|
|
if (stream->new_caps) {
|
|
gst_qtdemux_configure_stream (demux, stream);
|
|
}
|
|
|
|
/* Put data in a buffer, set timestamps, caps, ... */
|
|
sample = &stream->samples[stream->sample_index];
|
|
|
|
if (G_LIKELY (!(STREAM_IS_EOS (stream)))) {
|
|
GST_DEBUG_OBJECT (demux, "stream : %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (CUR_STREAM (stream)->fourcc));
|
|
|
|
dts = QTSAMPLE_DTS (stream, sample);
|
|
pts = QTSAMPLE_PTS (stream, sample);
|
|
stream_pts =
|
|
gst_segment_to_stream_time_clamped (&stream->segment, pts);
|
|
duration = QTSAMPLE_DUR_DTS (stream, sample, dts);
|
|
keyframe = QTSAMPLE_KEYFRAME (stream, sample);
|
|
|
|
/* check for segment end */
|
|
if (G_UNLIKELY (demux->segment.stop != -1
|
|
&& demux->segment.stop <= stream_pts && keyframe)
|
|
&& !(demux->upstream_format_is_time && demux->segment.rate < 0)) {
|
|
GST_DEBUG_OBJECT (demux, "we reached the end of our segment.");
|
|
stream->time_position = GST_CLOCK_TIME_NONE; /* this means EOS */
|
|
|
|
/* skip this data, stream is EOS */
|
|
gst_adapter_flush (demux->adapter, demux->neededbytes);
|
|
demux->offset += demux->neededbytes;
|
|
|
|
/* check if all streams are eos */
|
|
ret = GST_FLOW_EOS;
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (demux); i++) {
|
|
if (!STREAM_IS_EOS (QTDEMUX_NTH_STREAM (demux, i))) {
|
|
ret = GST_FLOW_OK;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
GstBuffer *outbuf;
|
|
|
|
outbuf =
|
|
gst_adapter_take_buffer (demux->adapter, demux->neededbytes);
|
|
|
|
/* FIXME: should either be an assert or a plain check */
|
|
g_return_val_if_fail (outbuf != NULL, GST_FLOW_ERROR);
|
|
|
|
ret = gst_qtdemux_decorate_and_push_buffer (demux, stream, outbuf,
|
|
dts, pts, duration, keyframe, dts, demux->offset);
|
|
}
|
|
|
|
/* combine flows */
|
|
GST_OBJECT_LOCK (demux);
|
|
ret = gst_qtdemux_combine_flows (demux, stream, ret);
|
|
GST_OBJECT_UNLOCK (demux);
|
|
} else {
|
|
/* skip this data, stream is EOS */
|
|
gst_adapter_flush (demux->adapter, demux->neededbytes);
|
|
}
|
|
|
|
stream->sample_index++;
|
|
stream->offset_in_sample = 0;
|
|
|
|
/* update current offset and figure out size of next buffer */
|
|
GST_LOG_OBJECT (demux, "increasing offset %" G_GUINT64_FORMAT " by %u",
|
|
demux->offset, demux->neededbytes);
|
|
demux->offset += demux->neededbytes;
|
|
GST_LOG_OBJECT (demux, "offset is now %" G_GUINT64_FORMAT,
|
|
demux->offset);
|
|
|
|
|
|
if (ret == GST_FLOW_EOS) {
|
|
GST_DEBUG_OBJECT (demux, "All streams are EOS, signal upstream");
|
|
demux->neededbytes = -1;
|
|
goto eos;
|
|
}
|
|
|
|
if ((demux->neededbytes = next_entry_size (demux)) == -1) {
|
|
if (demux->fragmented) {
|
|
GST_DEBUG_OBJECT (demux, "(temporarily) out of fragmented samples");
|
|
/* there may be more to follow, only finish this atom */
|
|
demux->todrop = demux->mdatleft;
|
|
demux->neededbytes = demux->todrop;
|
|
break;
|
|
}
|
|
goto eos;
|
|
}
|
|
if (ret != GST_FLOW_OK && ret != GST_FLOW_NOT_LINKED) {
|
|
goto non_ok_unlinked_flow;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
goto invalid_state;
|
|
}
|
|
}
|
|
|
|
/* when buffering movie data, at least show user something is happening */
|
|
if (ret == GST_FLOW_OK && demux->state == QTDEMUX_STATE_BUFFER_MDAT &&
|
|
gst_adapter_available (demux->adapter) <= demux->neededbytes) {
|
|
gst_qtdemux_post_progress (demux, gst_adapter_available (demux->adapter),
|
|
demux->neededbytes);
|
|
}
|
|
done:
|
|
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
non_ok_unlinked_flow:
|
|
{
|
|
GST_DEBUG_OBJECT (demux, "Stopping, combined return flow %s",
|
|
gst_flow_get_name (ret));
|
|
return ret;
|
|
}
|
|
unknown_stream:
|
|
{
|
|
GST_ELEMENT_ERROR (demux, STREAM, FAILED, (NULL), ("unknown stream found"));
|
|
ret = GST_FLOW_ERROR;
|
|
goto done;
|
|
}
|
|
eos:
|
|
{
|
|
GST_DEBUG_OBJECT (demux, "no next entry, EOS");
|
|
ret = GST_FLOW_EOS;
|
|
goto done;
|
|
}
|
|
invalid_state:
|
|
{
|
|
GST_ELEMENT_ERROR (demux, STREAM, FAILED,
|
|
(NULL), ("qtdemuxer invalid state %d", demux->state));
|
|
ret = GST_FLOW_ERROR;
|
|
goto done;
|
|
}
|
|
no_moov:
|
|
{
|
|
GST_ELEMENT_ERROR (demux, STREAM, FAILED,
|
|
(NULL), ("no 'moov' atom within the first 10 MB"));
|
|
ret = GST_FLOW_ERROR;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_sink_activate (GstPad * sinkpad, GstObject * parent)
|
|
{
|
|
GstQuery *query;
|
|
gboolean pull_mode;
|
|
|
|
query = gst_query_new_scheduling ();
|
|
|
|
if (!gst_pad_peer_query (sinkpad, query)) {
|
|
gst_query_unref (query);
|
|
goto activate_push;
|
|
}
|
|
|
|
pull_mode = gst_query_has_scheduling_mode_with_flags (query,
|
|
GST_PAD_MODE_PULL, GST_SCHEDULING_FLAG_SEEKABLE);
|
|
gst_query_unref (query);
|
|
|
|
if (!pull_mode)
|
|
goto activate_push;
|
|
|
|
GST_DEBUG_OBJECT (sinkpad, "activating pull");
|
|
return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PULL, TRUE);
|
|
|
|
activate_push:
|
|
{
|
|
GST_DEBUG_OBJECT (sinkpad, "activating push");
|
|
return gst_pad_activate_mode (sinkpad, GST_PAD_MODE_PUSH, TRUE);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_sink_activate_mode (GstPad * sinkpad, GstObject * parent,
|
|
GstPadMode mode, gboolean active)
|
|
{
|
|
gboolean res;
|
|
GstQTDemux *demux = GST_QTDEMUX (parent);
|
|
|
|
switch (mode) {
|
|
case GST_PAD_MODE_PUSH:
|
|
demux->pullbased = FALSE;
|
|
res = TRUE;
|
|
break;
|
|
case GST_PAD_MODE_PULL:
|
|
if (active) {
|
|
demux->pullbased = TRUE;
|
|
res = gst_pad_start_task (sinkpad, (GstTaskFunction) gst_qtdemux_loop,
|
|
sinkpad, NULL);
|
|
} else {
|
|
res = gst_pad_stop_task (sinkpad);
|
|
}
|
|
break;
|
|
default:
|
|
res = FALSE;
|
|
break;
|
|
}
|
|
return res;
|
|
}
|
|
|
|
#ifdef HAVE_ZLIB
|
|
static void *
|
|
qtdemux_inflate (void *z_buffer, guint z_length, guint * length)
|
|
{
|
|
guint8 *buffer;
|
|
z_stream z;
|
|
int ret;
|
|
|
|
memset (&z, 0, sizeof (z));
|
|
z.zalloc = NULL;
|
|
z.zfree = NULL;
|
|
z.opaque = NULL;
|
|
|
|
if ((ret = inflateInit (&z)) != Z_OK) {
|
|
GST_ERROR ("inflateInit() returned %d", ret);
|
|
return NULL;
|
|
}
|
|
|
|
z.next_in = z_buffer;
|
|
z.avail_in = z_length;
|
|
|
|
buffer = (guint8 *) g_malloc (*length);
|
|
z.avail_out = *length;
|
|
z.next_out = (Bytef *) buffer;
|
|
do {
|
|
ret = inflate (&z, Z_NO_FLUSH);
|
|
if (ret == Z_STREAM_END) {
|
|
break;
|
|
} else if (ret != Z_OK) {
|
|
GST_WARNING ("inflate() returned %d", ret);
|
|
break;
|
|
}
|
|
|
|
if (*length > G_MAXUINT - 4096 || *length > QTDEMUX_MAX_SAMPLE_INDEX_SIZE) {
|
|
GST_WARNING ("too big decompressed data");
|
|
ret = Z_MEM_ERROR;
|
|
break;
|
|
}
|
|
|
|
*length += 4096;
|
|
buffer = (guint8 *) g_realloc (buffer, *length);
|
|
z.next_out = (Bytef *) (buffer + z.total_out);
|
|
z.avail_out += *length - z.total_out;
|
|
} while (z.avail_in > 0);
|
|
|
|
if (ret != Z_STREAM_END) {
|
|
g_free (buffer);
|
|
buffer = NULL;
|
|
*length = 0;
|
|
} else {
|
|
*length = z.total_out;
|
|
}
|
|
|
|
inflateEnd (&z);
|
|
|
|
return buffer;
|
|
}
|
|
#endif /* HAVE_ZLIB */
|
|
|
|
static gboolean
|
|
qtdemux_parse_moov (GstQTDemux * qtdemux, const guint8 * buffer, guint length)
|
|
{
|
|
GNode *cmov;
|
|
|
|
qtdemux->moov_node = g_node_new ((guint8 *) buffer);
|
|
|
|
/* counts as header data */
|
|
qtdemux->header_size += length;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing 'moov' atom");
|
|
qtdemux_parse_node (qtdemux, qtdemux->moov_node, buffer, length);
|
|
|
|
cmov = qtdemux_tree_get_child_by_type (qtdemux->moov_node, FOURCC_cmov);
|
|
if (cmov) {
|
|
guint32 method;
|
|
GNode *dcom;
|
|
GNode *cmvd;
|
|
guint32 dcom_len;
|
|
|
|
dcom = qtdemux_tree_get_child_by_type (cmov, FOURCC_dcom);
|
|
cmvd = qtdemux_tree_get_child_by_type (cmov, FOURCC_cmvd);
|
|
if (dcom == NULL || cmvd == NULL)
|
|
goto invalid_compression;
|
|
|
|
dcom_len = QT_UINT32 (dcom->data);
|
|
if (dcom_len < 12)
|
|
goto invalid_compression;
|
|
|
|
method = QT_FOURCC ((guint8 *) dcom->data + 8);
|
|
switch (method) {
|
|
#ifdef HAVE_ZLIB
|
|
case FOURCC_zlib:{
|
|
guint uncompressed_length;
|
|
guint compressed_length;
|
|
guint8 *buf;
|
|
guint32 cmvd_len;
|
|
|
|
cmvd_len = QT_UINT32 ((guint8 *) cmvd->data);
|
|
if (cmvd_len < 12)
|
|
goto invalid_compression;
|
|
|
|
uncompressed_length = QT_UINT32 ((guint8 *) cmvd->data + 8);
|
|
compressed_length = cmvd_len - 12;
|
|
GST_LOG ("length = %u", uncompressed_length);
|
|
|
|
buf =
|
|
(guint8 *) qtdemux_inflate ((guint8 *) cmvd->data + 12,
|
|
compressed_length, &uncompressed_length);
|
|
|
|
if (buf) {
|
|
qtdemux->moov_node_compressed = qtdemux->moov_node;
|
|
qtdemux->moov_node = g_node_new (buf);
|
|
|
|
qtdemux_parse_node (qtdemux, qtdemux->moov_node, buf,
|
|
uncompressed_length);
|
|
}
|
|
break;
|
|
}
|
|
#endif /* HAVE_ZLIB */
|
|
default:
|
|
GST_WARNING_OBJECT (qtdemux, "unknown or unhandled header compression "
|
|
"type %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (method));
|
|
break;
|
|
}
|
|
}
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
invalid_compression:
|
|
{
|
|
GST_ERROR_OBJECT (qtdemux, "invalid compressed header");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_container (GstQTDemux * qtdemux, GNode * node, const guint8 * buf,
|
|
const guint8 * end)
|
|
{
|
|
while (G_UNLIKELY (buf < end)) {
|
|
GNode *child;
|
|
guint32 len;
|
|
|
|
if (G_UNLIKELY (buf + 4 > end)) {
|
|
GST_LOG_OBJECT (qtdemux, "buffer overrun");
|
|
break;
|
|
}
|
|
len = QT_UINT32 (buf);
|
|
if (G_UNLIKELY (len == 0)) {
|
|
GST_LOG_OBJECT (qtdemux, "empty container");
|
|
break;
|
|
}
|
|
if (G_UNLIKELY (len < 8)) {
|
|
GST_WARNING_OBJECT (qtdemux, "length too short (%d < 8)", len);
|
|
break;
|
|
}
|
|
if (G_UNLIKELY (len > (end - buf))) {
|
|
GST_WARNING_OBJECT (qtdemux, "length too long (%d > %d)", len,
|
|
(gint) (end - buf));
|
|
break;
|
|
}
|
|
|
|
child = g_node_new ((guint8 *) buf);
|
|
g_node_append (node, child);
|
|
GST_LOG_OBJECT (qtdemux, "adding new node of len %d", len);
|
|
qtdemux_parse_node (qtdemux, child, buf, len);
|
|
|
|
buf += len;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_theora_extension (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GNode * xdxt)
|
|
{
|
|
int len = QT_UINT32 (xdxt->data);
|
|
guint8 *buf = xdxt->data;
|
|
guint8 *end = buf + len;
|
|
GstBuffer *buffer;
|
|
|
|
/* skip size and type */
|
|
buf += 8;
|
|
end -= 8;
|
|
|
|
while (buf < end) {
|
|
gint size;
|
|
guint32 type;
|
|
|
|
size = QT_UINT32 (buf);
|
|
type = QT_FOURCC (buf + 4);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "%p %p", buf, end);
|
|
|
|
if (buf + size > end || size <= 0)
|
|
break;
|
|
|
|
buf += 8;
|
|
size -= 8;
|
|
|
|
GST_WARNING_OBJECT (qtdemux, "have cookie %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (type));
|
|
|
|
switch (type) {
|
|
case FOURCC_tCtH:
|
|
buffer = gst_buffer_new_and_alloc (size);
|
|
gst_buffer_fill (buffer, 0, buf, size);
|
|
stream->buffers = g_slist_append (stream->buffers, buffer);
|
|
GST_LOG_OBJECT (qtdemux, "parsing theora header");
|
|
break;
|
|
case FOURCC_tCt_:
|
|
buffer = gst_buffer_new_and_alloc (size);
|
|
gst_buffer_fill (buffer, 0, buf, size);
|
|
stream->buffers = g_slist_append (stream->buffers, buffer);
|
|
GST_LOG_OBJECT (qtdemux, "parsing theora comment");
|
|
break;
|
|
case FOURCC_tCtC:
|
|
buffer = gst_buffer_new_and_alloc (size);
|
|
gst_buffer_fill (buffer, 0, buf, size);
|
|
stream->buffers = g_slist_append (stream->buffers, buffer);
|
|
GST_LOG_OBJECT (qtdemux, "parsing theora codebook");
|
|
break;
|
|
default:
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"unknown theora cookie %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (type));
|
|
break;
|
|
}
|
|
buf += size;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_node (GstQTDemux * qtdemux, GNode * node, const guint8 * buffer,
|
|
guint length)
|
|
{
|
|
guint32 fourcc = 0;
|
|
guint32 node_length = 0;
|
|
const QtNodeType *type;
|
|
const guint8 *end;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "qtdemux_parse buffer %p length %u", buffer, length);
|
|
|
|
if (G_UNLIKELY (length < 8))
|
|
goto not_enough_data;
|
|
|
|
node_length = QT_UINT32 (buffer);
|
|
fourcc = QT_FOURCC (buffer + 4);
|
|
|
|
/* ignore empty nodes */
|
|
if (G_UNLIKELY (fourcc == 0 || node_length == 8))
|
|
return TRUE;
|
|
|
|
type = qtdemux_type_get (fourcc);
|
|
|
|
end = buffer + length;
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"parsing '%" GST_FOURCC_FORMAT "', length=%u, name '%s'",
|
|
GST_FOURCC_ARGS (fourcc), node_length, type->name);
|
|
|
|
if (node_length > length)
|
|
goto broken_atom_size;
|
|
|
|
if (type->flags & QT_FLAG_CONTAINER) {
|
|
qtdemux_parse_container (qtdemux, node, buffer + 8, end);
|
|
} else {
|
|
switch (fourcc) {
|
|
case FOURCC_stsd:
|
|
{
|
|
if (node_length < 20) {
|
|
GST_LOG_OBJECT (qtdemux, "skipping small stsd box");
|
|
break;
|
|
}
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"parsing stsd (sample table, sample description) atom");
|
|
/* Skip over 8 byte atom hdr + 1 byte version, 3 bytes flags, 4 byte num_entries */
|
|
qtdemux_parse_container (qtdemux, node, buffer + 16, end);
|
|
break;
|
|
}
|
|
case FOURCC_mp4a:
|
|
case FOURCC_alac:
|
|
case FOURCC_fLaC:
|
|
case FOURCC_aavd:
|
|
case FOURCC_opus:
|
|
{
|
|
guint32 version;
|
|
guint32 offset;
|
|
guint min_size;
|
|
|
|
/* also read alac (or whatever) in stead of mp4a in the following,
|
|
* since a similar layout is used in other cases as well */
|
|
if (fourcc == FOURCC_mp4a)
|
|
min_size = 20;
|
|
else if (fourcc == FOURCC_fLaC)
|
|
min_size = 86;
|
|
else if (fourcc == FOURCC_opus)
|
|
min_size = 55;
|
|
else
|
|
min_size = 40;
|
|
|
|
/* There are two things we might encounter here: a true mp4a atom, and
|
|
an mp4a entry in an stsd atom. The latter is what we're interested
|
|
in, and it looks like an atom, but isn't really one. The true mp4a
|
|
atom is short, so we detect it based on length here. */
|
|
if (length < min_size) {
|
|
GST_LOG_OBJECT (qtdemux, "skipping small %" GST_FOURCC_FORMAT " box",
|
|
GST_FOURCC_ARGS (fourcc));
|
|
break;
|
|
}
|
|
|
|
/* 'version' here is the sound sample description version. Types 0 and
|
|
1 are documented in the QTFF reference, but type 2 is not: it's
|
|
described in Apple header files instead (struct SoundDescriptionV2
|
|
in Movies.h) */
|
|
version = QT_UINT16 (buffer + 16);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "%" GST_FOURCC_FORMAT " version 0x%08x",
|
|
GST_FOURCC_ARGS (fourcc), version);
|
|
|
|
/* parse any esds descriptors */
|
|
switch (version) {
|
|
case 0:
|
|
offset = 0x24;
|
|
break;
|
|
case 1:
|
|
offset = 0x34;
|
|
break;
|
|
case 2:
|
|
offset = 0x48;
|
|
break;
|
|
default:
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"unhandled %" GST_FOURCC_FORMAT " version 0x%08x",
|
|
GST_FOURCC_ARGS (fourcc), version);
|
|
offset = 0;
|
|
break;
|
|
}
|
|
if (offset)
|
|
qtdemux_parse_container (qtdemux, node, buffer + offset, end);
|
|
break;
|
|
}
|
|
case FOURCC_mp4v:
|
|
case FOURCC_MP4V:
|
|
case FOURCC_fmp4:
|
|
case FOURCC_FMP4:
|
|
case FOURCC_apcs:
|
|
case FOURCC_apch:
|
|
case FOURCC_apcn:
|
|
case FOURCC_apco:
|
|
case FOURCC_ap4h:
|
|
case FOURCC_xvid:
|
|
case FOURCC_XVID:
|
|
case FOURCC_H264:
|
|
case FOURCC_avc1:
|
|
case FOURCC_avc3:
|
|
case FOURCC_H265:
|
|
case FOURCC_hvc1:
|
|
case FOURCC_hev1:
|
|
case FOURCC_dvh1:
|
|
case FOURCC_dvhe:
|
|
case FOURCC_mjp2:
|
|
case FOURCC_encv:
|
|
{
|
|
guint32 version;
|
|
guint32 str_len;
|
|
|
|
/* codec_data is contained inside these atoms, which all have
|
|
* the same format. */
|
|
/* video sample description size is 86 bytes without extension.
|
|
* node_length have to be bigger than 86 bytes because video sample
|
|
* description can include extensions such as esds, fiel, glbl, etc. */
|
|
if (node_length < 86) {
|
|
GST_WARNING_OBJECT (qtdemux, "%" GST_FOURCC_FORMAT
|
|
" sample description length too short (%u < 86)",
|
|
GST_FOURCC_ARGS (fourcc), node_length);
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing in %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
|
|
/* version (2 bytes) : this is set to 0, unless a compressor has changed
|
|
* its data format.
|
|
* revision level (2 bytes) : must be set to 0. */
|
|
version = QT_UINT32 (buffer + 16);
|
|
GST_DEBUG_OBJECT (qtdemux, "version %08x", version);
|
|
|
|
/* compressor name : PASCAL string and informative purposes
|
|
* first byte : the number of bytes to be displayed.
|
|
* it has to be less than 32 because it is reserved
|
|
* space of 32 bytes total including itself. */
|
|
str_len = QT_UINT8 (buffer + 50);
|
|
if (str_len < 32)
|
|
GST_DEBUG_OBJECT (qtdemux, "compressorname = %.*s", str_len,
|
|
(char *) buffer + 51);
|
|
else
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"compressorname length too big (%u > 31)", str_len);
|
|
|
|
GST_MEMDUMP_OBJECT (qtdemux, "video sample description", buffer,
|
|
end - buffer);
|
|
qtdemux_parse_container (qtdemux, node, buffer + 86, end);
|
|
break;
|
|
}
|
|
case FOURCC_meta:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing meta atom");
|
|
|
|
/* You are reading this correctly. QTFF specifies that the
|
|
* metadata atom is a short atom, whereas ISO BMFF specifies
|
|
* it's a full atom. But since so many people are doing things
|
|
* differently, we actually peek into the atom to see which
|
|
* variant it is */
|
|
if (length < 16) {
|
|
GST_LOG_OBJECT (qtdemux, "skipping small %" GST_FOURCC_FORMAT " box",
|
|
GST_FOURCC_ARGS (fourcc));
|
|
break;
|
|
}
|
|
if (QT_FOURCC (buffer + 12) == FOURCC_hdlr) {
|
|
/* Variant 1: What QTFF specifies. 'meta' is a short header which
|
|
* starts with a 'hdlr' atom */
|
|
qtdemux_parse_container (qtdemux, node, buffer + 8, end);
|
|
} else if (QT_UINT32 (buffer + 8) == 0x00000000) {
|
|
/* Variant 2: What ISO BMFF specifies. 'meta' is a _full_ atom
|
|
* with version/flags both set to zero */
|
|
qtdemux_parse_container (qtdemux, node, buffer + 12, end);
|
|
} else
|
|
GST_WARNING_OBJECT (qtdemux, "Unknown 'meta' atom format");
|
|
break;
|
|
}
|
|
case FOURCC_mp4s:
|
|
{
|
|
GST_MEMDUMP_OBJECT (qtdemux, "mp4s", buffer, end - buffer);
|
|
/* Skip 8 byte header, plus 8 byte version + flags + entry_count */
|
|
qtdemux_parse_container (qtdemux, node, buffer + 16, end);
|
|
break;
|
|
}
|
|
case FOURCC_XiTh:
|
|
{
|
|
guint32 version;
|
|
guint32 offset;
|
|
|
|
if (length < 16) {
|
|
GST_LOG_OBJECT (qtdemux, "skipping small %" GST_FOURCC_FORMAT " box",
|
|
GST_FOURCC_ARGS (fourcc));
|
|
break;
|
|
}
|
|
|
|
version = QT_UINT32 (buffer + 12);
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing XiTh atom version 0x%08x", version);
|
|
|
|
switch (version) {
|
|
case 0x00000001:
|
|
offset = 0x62;
|
|
break;
|
|
default:
|
|
GST_DEBUG_OBJECT (qtdemux, "unknown version 0x%08x", version);
|
|
offset = 0;
|
|
break;
|
|
}
|
|
if (offset) {
|
|
if (length < offset) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"skipping too small %" GST_FOURCC_FORMAT " box",
|
|
GST_FOURCC_ARGS (fourcc));
|
|
break;
|
|
}
|
|
qtdemux_parse_container (qtdemux, node, buffer + offset, end);
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_in24:
|
|
{
|
|
qtdemux_parse_container (qtdemux, node, buffer + 0x34, end);
|
|
break;
|
|
}
|
|
case FOURCC_uuid:
|
|
{
|
|
qtdemux_parse_uuid (qtdemux, buffer, end - buffer);
|
|
break;
|
|
}
|
|
case FOURCC_enca:
|
|
{
|
|
qtdemux_parse_container (qtdemux, node, buffer + 36, end);
|
|
break;
|
|
}
|
|
default:
|
|
if (!strcmp (type->name, "unknown"))
|
|
GST_MEMDUMP ("Unknown tag", buffer + 4, end - buffer - 4);
|
|
break;
|
|
}
|
|
}
|
|
GST_LOG_OBJECT (qtdemux, "parsed '%" GST_FOURCC_FORMAT "'",
|
|
GST_FOURCC_ARGS (fourcc));
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
not_enough_data:
|
|
{
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("This file is corrupt and cannot be played.")),
|
|
("Not enough data for an atom header, got only %u bytes", length));
|
|
return FALSE;
|
|
}
|
|
broken_atom_size:
|
|
{
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("This file is corrupt and cannot be played.")),
|
|
("Atom '%" GST_FOURCC_FORMAT "' has size of %u bytes, but we have only "
|
|
"%u bytes available.", GST_FOURCC_ARGS (fourcc), node_length,
|
|
length));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_do_allocation (QtDemuxStream * stream, GstQTDemux * qtdemux)
|
|
{
|
|
/* FIXME: This can only reliably work if demuxers have a
|
|
* separate streaming thread per srcpad. This should be
|
|
* done in a demuxer base class, which integrates parts
|
|
* of multiqueue
|
|
*
|
|
* https://bugzilla.gnome.org/show_bug.cgi?id=701856
|
|
*/
|
|
#if 0
|
|
GstQuery *query;
|
|
|
|
query = gst_query_new_allocation (stream->caps, FALSE);
|
|
|
|
if (!gst_pad_peer_query (stream->pad, query)) {
|
|
/* not a problem, just debug a little */
|
|
GST_DEBUG_OBJECT (qtdemux, "peer ALLOCATION query failed");
|
|
}
|
|
|
|
if (stream->allocator)
|
|
gst_object_unref (stream->allocator);
|
|
|
|
if (gst_query_get_n_allocation_params (query) > 0) {
|
|
/* try the allocator */
|
|
gst_query_parse_nth_allocation_param (query, 0, &stream->allocator,
|
|
&stream->params);
|
|
stream->use_allocator = TRUE;
|
|
} else {
|
|
stream->allocator = NULL;
|
|
gst_allocation_params_init (&stream->params);
|
|
stream->use_allocator = FALSE;
|
|
}
|
|
gst_query_unref (query);
|
|
#endif
|
|
}
|
|
|
|
static gboolean
|
|
pad_query (const GValue * item, GValue * value, gpointer user_data)
|
|
{
|
|
GstPad *pad = g_value_get_object (item);
|
|
GstQuery *query = user_data;
|
|
gboolean res;
|
|
|
|
res = gst_pad_peer_query (pad, query);
|
|
|
|
if (res) {
|
|
g_value_set_boolean (value, TRUE);
|
|
return FALSE;
|
|
}
|
|
|
|
GST_INFO_OBJECT (pad, "pad peer query failed");
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_run_query (GstElement * element, GstQuery * query,
|
|
GstPadDirection direction)
|
|
{
|
|
GstIterator *it;
|
|
GstIteratorFoldFunction func = pad_query;
|
|
GValue res = { 0, };
|
|
|
|
g_value_init (&res, G_TYPE_BOOLEAN);
|
|
g_value_set_boolean (&res, FALSE);
|
|
|
|
/* Ask neighbor */
|
|
if (direction == GST_PAD_SRC)
|
|
it = gst_element_iterate_src_pads (element);
|
|
else
|
|
it = gst_element_iterate_sink_pads (element);
|
|
|
|
while (gst_iterator_fold (it, func, &res, query) == GST_ITERATOR_RESYNC)
|
|
gst_iterator_resync (it);
|
|
|
|
gst_iterator_free (it);
|
|
|
|
return g_value_get_boolean (&res);
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_request_protection_context (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream)
|
|
{
|
|
GstQuery *query;
|
|
GstContext *ctxt;
|
|
GstElement *element = GST_ELEMENT (qtdemux);
|
|
GstStructure *st;
|
|
gchar **filtered_sys_ids;
|
|
GValue event_list = G_VALUE_INIT;
|
|
GList *walk;
|
|
|
|
/* 1. Check if we already have the context. */
|
|
if (qtdemux->preferred_protection_system_id != NULL) {
|
|
GST_LOG_OBJECT (element,
|
|
"already have the protection context, no need to request it again");
|
|
return;
|
|
}
|
|
|
|
g_ptr_array_add (qtdemux->protection_system_ids, NULL);
|
|
filtered_sys_ids = gst_protection_filter_systems_by_available_decryptors (
|
|
(const gchar **) qtdemux->protection_system_ids->pdata);
|
|
|
|
g_ptr_array_remove_index (qtdemux->protection_system_ids,
|
|
qtdemux->protection_system_ids->len - 1);
|
|
GST_TRACE_OBJECT (qtdemux, "detected %u protection systems, we have "
|
|
"decryptors for %u of them, running context request",
|
|
qtdemux->protection_system_ids->len,
|
|
filtered_sys_ids ? g_strv_length (filtered_sys_ids) : 0);
|
|
|
|
|
|
if (stream->protection_scheme_event_queue.length) {
|
|
GST_TRACE_OBJECT (qtdemux, "using stream event queue, length %u",
|
|
stream->protection_scheme_event_queue.length);
|
|
walk = stream->protection_scheme_event_queue.tail;
|
|
} else {
|
|
GST_TRACE_OBJECT (qtdemux, "using demuxer event queue, length %u",
|
|
qtdemux->protection_event_queue.length);
|
|
walk = qtdemux->protection_event_queue.tail;
|
|
}
|
|
|
|
g_value_init (&event_list, GST_TYPE_LIST);
|
|
for (; walk; walk = g_list_previous (walk)) {
|
|
GValue event_value = G_VALUE_INIT;
|
|
g_value_init (&event_value, GST_TYPE_EVENT);
|
|
g_value_set_boxed (&event_value, walk->data);
|
|
gst_value_list_append_and_take_value (&event_list, &event_value);
|
|
}
|
|
|
|
/* 2a) Query downstream with GST_QUERY_CONTEXT for the context and
|
|
* check if downstream already has a context of the specific type
|
|
* 2b) Query upstream as above.
|
|
*/
|
|
query = gst_query_new_context ("drm-preferred-decryption-system-id");
|
|
st = gst_query_writable_structure (query);
|
|
gst_structure_set (st, "track-id", G_TYPE_UINT, stream->track_id,
|
|
"available-stream-encryption-systems", G_TYPE_STRV, filtered_sys_ids,
|
|
NULL);
|
|
gst_structure_set_value (st, "stream-encryption-events", &event_list);
|
|
if (gst_qtdemux_run_query (element, query, GST_PAD_SRC)) {
|
|
gst_query_parse_context (query, &ctxt);
|
|
GST_INFO_OBJECT (element, "found context (%p) in downstream query", ctxt);
|
|
gst_element_set_context (element, ctxt);
|
|
} else if (gst_qtdemux_run_query (element, query, GST_PAD_SINK)) {
|
|
gst_query_parse_context (query, &ctxt);
|
|
GST_INFO_OBJECT (element, "found context (%p) in upstream query", ctxt);
|
|
gst_element_set_context (element, ctxt);
|
|
} else {
|
|
/* 3) Post a GST_MESSAGE_NEED_CONTEXT message on the bus with
|
|
* the required context type and afterwards check if a
|
|
* usable context was set now as in 1). The message could
|
|
* be handled by the parent bins of the element and the
|
|
* application.
|
|
*/
|
|
GstMessage *msg;
|
|
|
|
GST_INFO_OBJECT (element, "posting need context message");
|
|
msg = gst_message_new_need_context (GST_OBJECT_CAST (element),
|
|
"drm-preferred-decryption-system-id");
|
|
st = (GstStructure *) gst_message_get_structure (msg);
|
|
gst_structure_set (st, "track-id", G_TYPE_UINT, stream->track_id,
|
|
"available-stream-encryption-systems", G_TYPE_STRV, filtered_sys_ids,
|
|
NULL);
|
|
|
|
gst_structure_set_value (st, "stream-encryption-events", &event_list);
|
|
gst_element_post_message (element, msg);
|
|
}
|
|
|
|
g_strfreev (filtered_sys_ids);
|
|
g_value_unset (&event_list);
|
|
gst_query_unref (query);
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_configure_protected_caps (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream)
|
|
{
|
|
GstStructure *s;
|
|
const gchar *selected_system = NULL;
|
|
|
|
g_return_val_if_fail (qtdemux != NULL, FALSE);
|
|
g_return_val_if_fail (stream != NULL, FALSE);
|
|
g_return_val_if_fail (gst_caps_get_size (CUR_STREAM (stream)->caps) == 1,
|
|
FALSE);
|
|
|
|
if (stream->protection_scheme_type == FOURCC_aavd) {
|
|
s = gst_caps_get_structure (CUR_STREAM (stream)->caps, 0);
|
|
if (!gst_structure_has_name (s, "application/x-aavd")) {
|
|
gst_structure_set (s,
|
|
"original-media-type", G_TYPE_STRING, gst_structure_get_name (s),
|
|
NULL);
|
|
gst_structure_set_name (s, "application/x-aavd");
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
if (stream->protection_scheme_type != FOURCC_cenc
|
|
&& stream->protection_scheme_type != FOURCC_cbcs) {
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"unsupported protection scheme: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (stream->protection_scheme_type));
|
|
return FALSE;
|
|
}
|
|
|
|
s = gst_caps_get_structure (CUR_STREAM (stream)->caps, 0);
|
|
if (!gst_structure_has_name (s, "application/x-cenc")) {
|
|
gst_structure_set (s,
|
|
"original-media-type", G_TYPE_STRING, gst_structure_get_name (s), NULL);
|
|
gst_structure_set (s, "cipher-mode", G_TYPE_STRING,
|
|
(stream->protection_scheme_type == FOURCC_cbcs) ? "cbcs" : "cenc",
|
|
NULL);
|
|
gst_structure_set_name (s, "application/x-cenc");
|
|
}
|
|
|
|
if (qtdemux->protection_system_ids == NULL) {
|
|
GST_DEBUG_OBJECT (qtdemux, "stream is protected using cenc, but no "
|
|
"cenc protection system information has been found, not setting a "
|
|
"protection system UUID");
|
|
return TRUE;
|
|
}
|
|
|
|
gst_qtdemux_request_protection_context (qtdemux, stream);
|
|
if (qtdemux->preferred_protection_system_id != NULL) {
|
|
const gchar *preferred_system_array[] =
|
|
{ qtdemux->preferred_protection_system_id, NULL };
|
|
|
|
selected_system = gst_protection_select_system (preferred_system_array);
|
|
|
|
if (selected_system) {
|
|
GST_TRACE_OBJECT (qtdemux, "selected preferred system %s",
|
|
qtdemux->preferred_protection_system_id);
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "could not select preferred system %s "
|
|
"because there is no available decryptor",
|
|
qtdemux->preferred_protection_system_id);
|
|
}
|
|
}
|
|
|
|
if (!selected_system) {
|
|
g_ptr_array_add (qtdemux->protection_system_ids, NULL);
|
|
selected_system = gst_protection_select_system ((const gchar **)
|
|
qtdemux->protection_system_ids->pdata);
|
|
g_ptr_array_remove_index (qtdemux->protection_system_ids,
|
|
qtdemux->protection_system_ids->len - 1);
|
|
}
|
|
|
|
if (!selected_system) {
|
|
GST_ERROR_OBJECT (qtdemux, "stream is protected, but no "
|
|
"suitable decryptor element has been found");
|
|
return FALSE;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "selected protection system is %s",
|
|
selected_system);
|
|
|
|
gst_structure_set (s,
|
|
GST_PROTECTION_SYSTEM_ID_CAPS_FIELD, G_TYPE_STRING, selected_system,
|
|
NULL);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_guess_framerate (GstQTDemux * qtdemux, QtDemuxStream * stream)
|
|
{
|
|
/* fps is calculated base on the duration of the average framerate since
|
|
* qt does not have a fixed framerate. */
|
|
gboolean fps_available = TRUE;
|
|
guint32 first_duration = 0;
|
|
|
|
if (stream->n_samples > 0)
|
|
first_duration = stream->samples[0].duration;
|
|
|
|
if ((stream->n_samples == 1 && first_duration == 0)
|
|
|| (qtdemux->fragmented && stream->n_samples_moof == 1)) {
|
|
/* still frame */
|
|
CUR_STREAM (stream)->fps_n = 0;
|
|
CUR_STREAM (stream)->fps_d = 1;
|
|
} else {
|
|
if (stream->duration == 0 || stream->n_samples < 2) {
|
|
CUR_STREAM (stream)->fps_n = stream->timescale;
|
|
CUR_STREAM (stream)->fps_d = 1;
|
|
fps_available = FALSE;
|
|
} else {
|
|
GstClockTime avg_duration;
|
|
guint64 duration;
|
|
guint32 n_samples;
|
|
|
|
/* duration and n_samples can be updated for fragmented format
|
|
* so, framerate of fragmented format is calculated using data in a moof */
|
|
if (qtdemux->fragmented && stream->n_samples_moof > 0
|
|
&& stream->duration_moof > 0) {
|
|
n_samples = stream->n_samples_moof;
|
|
duration = stream->duration_moof;
|
|
} else {
|
|
n_samples = stream->n_samples;
|
|
duration = stream->duration;
|
|
}
|
|
|
|
/* Calculate a framerate, ignoring the first sample which is sometimes truncated */
|
|
/* stream->duration is guint64, timescale, n_samples are guint32 */
|
|
avg_duration =
|
|
gst_util_uint64_scale_round (duration -
|
|
first_duration, GST_SECOND,
|
|
(guint64) (stream->timescale) * (n_samples - 1));
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"Calculating avg sample duration based on stream (or moof) duration %"
|
|
G_GUINT64_FORMAT
|
|
" minus first sample %u, leaving %d samples gives %"
|
|
GST_TIME_FORMAT, duration, first_duration,
|
|
n_samples - 1, GST_TIME_ARGS (avg_duration));
|
|
|
|
fps_available =
|
|
gst_video_guess_framerate (avg_duration,
|
|
&CUR_STREAM (stream)->fps_n, &CUR_STREAM (stream)->fps_d);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Calculating framerate, timescale %u gave fps_n %d fps_d %d",
|
|
stream->timescale, CUR_STREAM (stream)->fps_n,
|
|
CUR_STREAM (stream)->fps_d);
|
|
}
|
|
}
|
|
|
|
return fps_available;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_configure_stream (GstQTDemux * qtdemux, QtDemuxStream * stream)
|
|
{
|
|
if (stream->subtype == FOURCC_vide) {
|
|
gboolean fps_available = gst_qtdemux_guess_framerate (qtdemux, stream);
|
|
|
|
if (CUR_STREAM (stream)->caps) {
|
|
CUR_STREAM (stream)->caps =
|
|
gst_caps_make_writable (CUR_STREAM (stream)->caps);
|
|
|
|
if (CUR_STREAM (stream)->width && CUR_STREAM (stream)->height)
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps,
|
|
"width", G_TYPE_INT, CUR_STREAM (stream)->width,
|
|
"height", G_TYPE_INT, CUR_STREAM (stream)->height, NULL);
|
|
|
|
/* set framerate if calculated framerate is reliable */
|
|
if (fps_available) {
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps,
|
|
"framerate", GST_TYPE_FRACTION, CUR_STREAM (stream)->fps_n,
|
|
CUR_STREAM (stream)->fps_d, NULL);
|
|
}
|
|
|
|
/* calculate pixel-aspect-ratio using display width and height */
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"video size %dx%d, target display size %dx%d",
|
|
CUR_STREAM (stream)->width, CUR_STREAM (stream)->height,
|
|
stream->display_width, stream->display_height);
|
|
/* qt file might have pasp atom */
|
|
if (CUR_STREAM (stream)->par_w > 0 && CUR_STREAM (stream)->par_h > 0) {
|
|
GST_DEBUG_OBJECT (qtdemux, "par %d:%d", CUR_STREAM (stream)->par_w,
|
|
CUR_STREAM (stream)->par_h);
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps, "pixel-aspect-ratio",
|
|
GST_TYPE_FRACTION, CUR_STREAM (stream)->par_w,
|
|
CUR_STREAM (stream)->par_h, NULL);
|
|
} else if (stream->display_width > 0 && stream->display_height > 0
|
|
&& CUR_STREAM (stream)->width > 0
|
|
&& CUR_STREAM (stream)->height > 0) {
|
|
gint n, d;
|
|
|
|
/* calculate the pixel aspect ratio using the display and pixel w/h */
|
|
n = stream->display_width * CUR_STREAM (stream)->height;
|
|
d = stream->display_height * CUR_STREAM (stream)->width;
|
|
if (n == d)
|
|
n = d = 1;
|
|
GST_DEBUG_OBJECT (qtdemux, "setting PAR to %d/%d", n, d);
|
|
CUR_STREAM (stream)->par_w = n;
|
|
CUR_STREAM (stream)->par_h = d;
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps, "pixel-aspect-ratio",
|
|
GST_TYPE_FRACTION, CUR_STREAM (stream)->par_w,
|
|
CUR_STREAM (stream)->par_h, NULL);
|
|
}
|
|
|
|
if (CUR_STREAM (stream)->interlace_mode > 0) {
|
|
if (CUR_STREAM (stream)->interlace_mode == 1) {
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps, "interlace-mode",
|
|
G_TYPE_STRING, "progressive", NULL);
|
|
} else if (CUR_STREAM (stream)->interlace_mode == 2) {
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps, "interlace-mode",
|
|
G_TYPE_STRING, "interleaved", NULL);
|
|
if (CUR_STREAM (stream)->field_order == 9) {
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps, "field-order",
|
|
G_TYPE_STRING, "top-field-first", NULL);
|
|
} else if (CUR_STREAM (stream)->field_order == 14) {
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps, "field-order",
|
|
G_TYPE_STRING, "bottom-field-first", NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Create incomplete colorimetry here if needed */
|
|
if (CUR_STREAM (stream)->colorimetry.range ||
|
|
CUR_STREAM (stream)->colorimetry.matrix ||
|
|
CUR_STREAM (stream)->colorimetry.transfer
|
|
|| CUR_STREAM (stream)->colorimetry.primaries) {
|
|
gchar *colorimetry =
|
|
gst_video_colorimetry_to_string (&CUR_STREAM (stream)->colorimetry);
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps, "colorimetry",
|
|
G_TYPE_STRING, colorimetry, NULL);
|
|
g_free (colorimetry);
|
|
}
|
|
|
|
if (stream->multiview_mode != GST_VIDEO_MULTIVIEW_MODE_NONE) {
|
|
guint par_w = 1, par_h = 1;
|
|
|
|
if (CUR_STREAM (stream)->par_w > 0 && CUR_STREAM (stream)->par_h > 0) {
|
|
par_w = CUR_STREAM (stream)->par_w;
|
|
par_h = CUR_STREAM (stream)->par_h;
|
|
}
|
|
|
|
if (gst_video_multiview_guess_half_aspect (stream->multiview_mode,
|
|
CUR_STREAM (stream)->width, CUR_STREAM (stream)->height, par_w,
|
|
par_h)) {
|
|
stream->multiview_flags |= GST_VIDEO_MULTIVIEW_FLAGS_HALF_ASPECT;
|
|
}
|
|
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps,
|
|
"multiview-mode", G_TYPE_STRING,
|
|
gst_video_multiview_mode_to_caps_string (stream->multiview_mode),
|
|
"multiview-flags", GST_TYPE_VIDEO_MULTIVIEW_FLAGSET,
|
|
stream->multiview_flags, GST_FLAG_SET_MASK_EXACT, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
else if (stream->subtype == FOURCC_soun) {
|
|
if (CUR_STREAM (stream)->caps) {
|
|
CUR_STREAM (stream)->caps =
|
|
gst_caps_make_writable (CUR_STREAM (stream)->caps);
|
|
if (CUR_STREAM (stream)->rate > 0)
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps,
|
|
"rate", G_TYPE_INT, (int) CUR_STREAM (stream)->rate, NULL);
|
|
if (CUR_STREAM (stream)->n_channels > 0)
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps,
|
|
"channels", G_TYPE_INT, CUR_STREAM (stream)->n_channels, NULL);
|
|
if (CUR_STREAM (stream)->n_channels > 2) {
|
|
/* FIXME: Need to parse the 'chan' atom to get channel layouts
|
|
* correctly; this is just the minimum we can do - assume
|
|
* we don't actually have any channel positions. */
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps,
|
|
"channel-mask", GST_TYPE_BITMASK, G_GUINT64_CONSTANT (0), NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
else if (stream->subtype == FOURCC_clcp && CUR_STREAM (stream)->caps) {
|
|
const GstStructure *s;
|
|
QtDemuxStream *fps_stream = NULL;
|
|
gboolean fps_available = FALSE;
|
|
|
|
/* CEA608 closed caption tracks are a bit special in that each sample
|
|
* can contain CCs for multiple frames, and CCs can be omitted and have to
|
|
* be inferred from the duration of the sample then.
|
|
*
|
|
* As such we take the framerate from the (first) video track here for
|
|
* CEA608 as there must be one CC byte pair for every video frame
|
|
* according to the spec.
|
|
*
|
|
* For CEA708 all is fine and there is one sample per frame.
|
|
*/
|
|
|
|
s = gst_caps_get_structure (CUR_STREAM (stream)->caps, 0);
|
|
if (gst_structure_has_name (s, "closedcaption/x-cea-608")) {
|
|
gint i;
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *tmp = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
|
|
if (tmp->subtype == FOURCC_vide) {
|
|
fps_stream = tmp;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (fps_stream) {
|
|
fps_available = gst_qtdemux_guess_framerate (qtdemux, fps_stream);
|
|
CUR_STREAM (stream)->fps_n = CUR_STREAM (fps_stream)->fps_n;
|
|
CUR_STREAM (stream)->fps_d = CUR_STREAM (fps_stream)->fps_d;
|
|
}
|
|
} else {
|
|
fps_available = gst_qtdemux_guess_framerate (qtdemux, stream);
|
|
fps_stream = stream;
|
|
}
|
|
|
|
CUR_STREAM (stream)->caps =
|
|
gst_caps_make_writable (CUR_STREAM (stream)->caps);
|
|
|
|
/* set framerate if calculated framerate is reliable */
|
|
if (fps_available) {
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps,
|
|
"framerate", GST_TYPE_FRACTION, CUR_STREAM (stream)->fps_n,
|
|
CUR_STREAM (stream)->fps_d, NULL);
|
|
}
|
|
}
|
|
|
|
if (stream->pad) {
|
|
gboolean forward_collection = FALSE;
|
|
GstCaps *prev_caps = NULL;
|
|
|
|
GST_PAD_ELEMENT_PRIVATE (stream->pad) = stream;
|
|
gst_pad_set_event_function (stream->pad, gst_qtdemux_handle_src_event);
|
|
gst_pad_set_query_function (stream->pad, gst_qtdemux_handle_src_query);
|
|
gst_pad_set_active (stream->pad, TRUE);
|
|
|
|
gst_pad_use_fixed_caps (stream->pad);
|
|
|
|
if (stream->protected) {
|
|
if (!gst_qtdemux_configure_protected_caps (qtdemux, stream)) {
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"Failed to configure protected stream caps.");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
if (stream->new_stream) {
|
|
GstEvent *event;
|
|
GstStreamFlags stream_flags = GST_STREAM_FLAG_NONE;
|
|
|
|
event =
|
|
gst_pad_get_sticky_event (qtdemux->sinkpad, GST_EVENT_STREAM_START,
|
|
0);
|
|
if (event) {
|
|
gst_event_parse_stream_flags (event, &stream_flags);
|
|
if (gst_event_parse_group_id (event, &qtdemux->group_id))
|
|
qtdemux->have_group_id = TRUE;
|
|
else
|
|
qtdemux->have_group_id = FALSE;
|
|
gst_event_unref (event);
|
|
} else if (!qtdemux->have_group_id) {
|
|
qtdemux->have_group_id = TRUE;
|
|
qtdemux->group_id = gst_util_group_id_next ();
|
|
}
|
|
|
|
stream->new_stream = FALSE;
|
|
event = gst_event_new_stream_start (stream->stream_id);
|
|
if (qtdemux->have_group_id)
|
|
gst_event_set_group_id (event, qtdemux->group_id);
|
|
if (stream->disabled)
|
|
stream_flags |= GST_STREAM_FLAG_UNSELECT;
|
|
if (CUR_STREAM (stream)->sparse) {
|
|
stream_flags |= GST_STREAM_FLAG_SPARSE;
|
|
} else {
|
|
stream_flags &= ~GST_STREAM_FLAG_SPARSE;
|
|
}
|
|
gst_event_set_stream_flags (event, stream_flags);
|
|
gst_pad_push_event (stream->pad, event);
|
|
|
|
forward_collection = TRUE;
|
|
}
|
|
|
|
prev_caps = gst_pad_get_current_caps (stream->pad);
|
|
|
|
if (CUR_STREAM (stream)->caps) {
|
|
if (!prev_caps
|
|
|| !gst_caps_is_equal_fixed (prev_caps, CUR_STREAM (stream)->caps)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "setting caps %" GST_PTR_FORMAT,
|
|
CUR_STREAM (stream)->caps);
|
|
gst_pad_set_caps (stream->pad, CUR_STREAM (stream)->caps);
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "ignore duplicated caps");
|
|
}
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "stream without caps");
|
|
}
|
|
|
|
if (prev_caps)
|
|
gst_caps_unref (prev_caps);
|
|
stream->new_caps = FALSE;
|
|
|
|
if (forward_collection) {
|
|
/* Forward upstream collection and selection if any */
|
|
GstEvent *upstream_event = gst_pad_get_sticky_event (qtdemux->sinkpad,
|
|
GST_EVENT_STREAM_COLLECTION, 0);
|
|
if (upstream_event)
|
|
gst_pad_push_event (stream->pad, upstream_event);
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_stream_check_and_change_stsd_index (GstQTDemux * demux,
|
|
QtDemuxStream * stream)
|
|
{
|
|
if (stream->cur_stsd_entry_index == stream->stsd_sample_description_id)
|
|
return;
|
|
|
|
GST_DEBUG_OBJECT (stream->pad, "Changing stsd index from '%u' to '%u'",
|
|
stream->cur_stsd_entry_index, stream->stsd_sample_description_id);
|
|
if (G_UNLIKELY (stream->stsd_sample_description_id >=
|
|
stream->stsd_entries_length)) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DEMUX,
|
|
(_("This file is invalid and cannot be played.")),
|
|
("New sample description id is out of bounds (%d >= %d)",
|
|
stream->stsd_sample_description_id, stream->stsd_entries_length));
|
|
} else {
|
|
stream->cur_stsd_entry_index = stream->stsd_sample_description_id;
|
|
stream->new_caps = TRUE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_add_stream (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream, GstTagList * list)
|
|
{
|
|
gboolean ret = TRUE;
|
|
|
|
if (stream->subtype == FOURCC_vide) {
|
|
gchar *name = g_strdup_printf ("video_%u", qtdemux->n_video_streams);
|
|
|
|
stream->pad =
|
|
gst_pad_new_from_static_template (&gst_qtdemux_videosrc_template, name);
|
|
g_free (name);
|
|
|
|
if (!gst_qtdemux_configure_stream (qtdemux, stream)) {
|
|
gst_object_unref (stream->pad);
|
|
stream->pad = NULL;
|
|
ret = FALSE;
|
|
goto done;
|
|
}
|
|
|
|
qtdemux->n_video_streams++;
|
|
} else if (stream->subtype == FOURCC_soun) {
|
|
gchar *name = g_strdup_printf ("audio_%u", qtdemux->n_audio_streams);
|
|
|
|
stream->pad =
|
|
gst_pad_new_from_static_template (&gst_qtdemux_audiosrc_template, name);
|
|
g_free (name);
|
|
if (!gst_qtdemux_configure_stream (qtdemux, stream)) {
|
|
gst_object_unref (stream->pad);
|
|
stream->pad = NULL;
|
|
ret = FALSE;
|
|
goto done;
|
|
}
|
|
qtdemux->n_audio_streams++;
|
|
} else if (stream->subtype == FOURCC_strm) {
|
|
GST_DEBUG_OBJECT (qtdemux, "stream type, not creating pad");
|
|
} else if (stream->subtype == FOURCC_subp || stream->subtype == FOURCC_text
|
|
|| stream->subtype == FOURCC_sbtl || stream->subtype == FOURCC_subt
|
|
|| stream->subtype == FOURCC_clcp || stream->subtype == FOURCC_wvtt) {
|
|
gchar *name = g_strdup_printf ("subtitle_%u", qtdemux->n_sub_streams);
|
|
|
|
stream->pad =
|
|
gst_pad_new_from_static_template (&gst_qtdemux_subsrc_template, name);
|
|
g_free (name);
|
|
if (!gst_qtdemux_configure_stream (qtdemux, stream)) {
|
|
gst_object_unref (stream->pad);
|
|
stream->pad = NULL;
|
|
ret = FALSE;
|
|
goto done;
|
|
}
|
|
qtdemux->n_sub_streams++;
|
|
} else if (stream->subtype == FOURCC_meta) {
|
|
gchar *name = g_strdup_printf ("meta_%u", qtdemux->n_meta_streams);
|
|
|
|
stream->pad =
|
|
gst_pad_new_from_static_template (&gst_qtdemux_metasrc_template, name);
|
|
g_free (name);
|
|
if (!gst_qtdemux_configure_stream (qtdemux, stream)) {
|
|
gst_object_unref (stream->pad);
|
|
stream->pad = NULL;
|
|
ret = FALSE;
|
|
goto done;
|
|
}
|
|
qtdemux->n_meta_streams++;
|
|
} else if (CUR_STREAM (stream)->caps) {
|
|
gchar *name = g_strdup_printf ("video_%u", qtdemux->n_video_streams);
|
|
|
|
stream->pad =
|
|
gst_pad_new_from_static_template (&gst_qtdemux_videosrc_template, name);
|
|
g_free (name);
|
|
if (!gst_qtdemux_configure_stream (qtdemux, stream)) {
|
|
gst_object_unref (stream->pad);
|
|
stream->pad = NULL;
|
|
ret = FALSE;
|
|
goto done;
|
|
}
|
|
qtdemux->n_video_streams++;
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "unknown stream type");
|
|
goto done;
|
|
}
|
|
|
|
if (stream->pad) {
|
|
GList *l;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "adding pad %s %p to qtdemux %p",
|
|
GST_OBJECT_NAME (stream->pad), stream->pad, qtdemux);
|
|
gst_element_add_pad (GST_ELEMENT_CAST (qtdemux), stream->pad);
|
|
GST_OBJECT_LOCK (qtdemux);
|
|
gst_flow_combiner_add_pad (qtdemux->flowcombiner, stream->pad);
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
|
|
if (stream->stream_tags)
|
|
gst_tag_list_unref (stream->stream_tags);
|
|
stream->stream_tags = list;
|
|
list = NULL;
|
|
/* global tags go on each pad anyway */
|
|
stream->send_global_tags = TRUE;
|
|
/* send upstream GST_EVENT_PROTECTION events that were received before
|
|
this source pad was created */
|
|
for (l = qtdemux->protection_event_queue.head; l != NULL; l = l->next)
|
|
gst_pad_push_event (stream->pad, gst_event_ref (l->data));
|
|
}
|
|
done:
|
|
if (list)
|
|
gst_tag_list_unref (list);
|
|
return ret;
|
|
}
|
|
|
|
/* find next atom with @fourcc starting at @offset */
|
|
static GstFlowReturn
|
|
qtdemux_find_atom (GstQTDemux * qtdemux, guint64 * offset,
|
|
guint64 * length, guint32 fourcc)
|
|
{
|
|
GstFlowReturn ret;
|
|
guint32 lfourcc;
|
|
GstBuffer *buf;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "finding fourcc %" GST_FOURCC_FORMAT " at offset %"
|
|
G_GUINT64_FORMAT, GST_FOURCC_ARGS (fourcc), *offset);
|
|
|
|
while (TRUE) {
|
|
GstMapInfo map;
|
|
|
|
buf = NULL;
|
|
ret = gst_pad_pull_range (qtdemux->sinkpad, *offset, 16, &buf);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
|
goto locate_failed;
|
|
if (G_UNLIKELY (gst_buffer_get_size (buf) != 16)) {
|
|
/* likely EOF */
|
|
ret = GST_FLOW_EOS;
|
|
gst_buffer_unref (buf);
|
|
goto locate_failed;
|
|
}
|
|
gst_buffer_map (buf, &map, GST_MAP_READ);
|
|
extract_initial_length_and_fourcc (map.data, 16, length, &lfourcc);
|
|
gst_buffer_unmap (buf, &map);
|
|
gst_buffer_unref (buf);
|
|
|
|
if (G_UNLIKELY (*length == 0)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "invalid length 0");
|
|
ret = GST_FLOW_ERROR;
|
|
goto locate_failed;
|
|
}
|
|
|
|
if (lfourcc == fourcc) {
|
|
GST_DEBUG_OBJECT (qtdemux, "found '%" GST_FOURCC_FORMAT " at offset %"
|
|
G_GUINT64_FORMAT, GST_FOURCC_ARGS (fourcc), *offset);
|
|
break;
|
|
} else {
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"skipping atom '%" GST_FOURCC_FORMAT "' at %" G_GUINT64_FORMAT,
|
|
GST_FOURCC_ARGS (lfourcc), *offset);
|
|
if (*offset == G_MAXUINT64)
|
|
goto locate_failed;
|
|
*offset += *length;
|
|
}
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
locate_failed:
|
|
{
|
|
/* might simply have had last one */
|
|
GST_DEBUG_OBJECT (qtdemux, "fourcc not found");
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
/* should only do something in pull mode */
|
|
/* call with OBJECT lock */
|
|
static GstFlowReturn
|
|
qtdemux_add_fragmented_samples (GstQTDemux * qtdemux)
|
|
{
|
|
guint64 length, offset;
|
|
GstBuffer *buf = NULL;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstFlowReturn res = GST_FLOW_OK;
|
|
GstMapInfo map;
|
|
|
|
offset = qtdemux->moof_offset;
|
|
GST_DEBUG_OBJECT (qtdemux, "next moof at offset %" G_GUINT64_FORMAT, offset);
|
|
|
|
if (!offset) {
|
|
GST_DEBUG_OBJECT (qtdemux, "no next moof");
|
|
return GST_FLOW_EOS;
|
|
}
|
|
|
|
/* best not do pull etc with lock held */
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
|
|
ret = qtdemux_find_atom (qtdemux, &offset, &length, FOURCC_moof);
|
|
if (ret != GST_FLOW_OK)
|
|
goto flow_failed;
|
|
|
|
ret = gst_qtdemux_pull_atom (qtdemux, offset, length, &buf);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
|
goto flow_failed;
|
|
gst_buffer_map (buf, &map, GST_MAP_READ);
|
|
if (!qtdemux_parse_moof (qtdemux, map.data, map.size, offset, NULL)) {
|
|
gst_buffer_unmap (buf, &map);
|
|
gst_buffer_unref (buf);
|
|
buf = NULL;
|
|
goto parse_failed;
|
|
}
|
|
|
|
gst_buffer_unmap (buf, &map);
|
|
gst_buffer_unref (buf);
|
|
buf = NULL;
|
|
|
|
offset += length;
|
|
/* look for next moof */
|
|
ret = qtdemux_find_atom (qtdemux, &offset, &length, FOURCC_moof);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
|
goto flow_failed;
|
|
|
|
exit:
|
|
GST_OBJECT_LOCK (qtdemux);
|
|
|
|
qtdemux->moof_offset = offset;
|
|
|
|
return res;
|
|
|
|
parse_failed:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "failed to parse moof");
|
|
offset = 0;
|
|
res = GST_FLOW_ERROR;
|
|
goto exit;
|
|
}
|
|
flow_failed:
|
|
{
|
|
/* maybe upstream temporarily flushing */
|
|
if (ret != GST_FLOW_FLUSHING) {
|
|
GST_DEBUG_OBJECT (qtdemux, "no next moof");
|
|
offset = 0;
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "upstream WRONG_STATE");
|
|
/* resume at current position next time */
|
|
}
|
|
res = ret;
|
|
goto exit;
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_merge_sample_table (GstQTDemux * qtdemux, QtDemuxStream * stream)
|
|
{
|
|
guint i;
|
|
guint32 num_chunks;
|
|
gint32 stts_duration;
|
|
GstByteWriter stsc, stts, stsz;
|
|
|
|
/* Each sample has a different size, which we don't support for merging */
|
|
if (stream->sample_size == 0) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Not all samples have the same size, not merging");
|
|
return;
|
|
}
|
|
|
|
/* The stream has a ctts table, we don't support that */
|
|
if (stream->ctts_present) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Have ctts, not merging");
|
|
return;
|
|
}
|
|
|
|
/* If there's a sync sample table also ignore this stream */
|
|
if (stream->stps_present || stream->stss_present) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Have stss/stps, not merging");
|
|
return;
|
|
}
|
|
|
|
/* If chunks are considered samples already ignore this stream */
|
|
if (stream->chunks_are_samples) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Chunks are samples, not merging");
|
|
return;
|
|
}
|
|
|
|
/* Require that all samples have the same duration */
|
|
if (stream->n_sample_times > 1) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Not all samples have the same duration");
|
|
return;
|
|
}
|
|
|
|
/* Parse the stts to get the sample duration and number of samples */
|
|
gst_byte_reader_skip_unchecked (&stream->stts, 4);
|
|
stts_duration = gst_byte_reader_get_uint32_be_unchecked (&stream->stts);
|
|
|
|
/* Parse the number of chunks from the stco manually because the
|
|
* reader is already behind that */
|
|
num_chunks = GST_READ_UINT32_BE (stream->stco.data + 4);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "sample_duration %d, num_chunks %u", stts_duration,
|
|
num_chunks);
|
|
|
|
/* Now parse stsc, convert chunks into single samples and generate a
|
|
* new stsc, stts and stsz from this information */
|
|
gst_byte_writer_init (&stsc);
|
|
gst_byte_writer_init (&stts);
|
|
gst_byte_writer_init (&stsz);
|
|
|
|
/* Note: we skip fourccs, size, version, flags and other fields of the new
|
|
* atoms as the byte readers with them are already behind that position
|
|
* anyway and only update the values of those inside the stream directly.
|
|
*/
|
|
stream->n_sample_times = 0;
|
|
stream->n_samples = 0;
|
|
for (i = 0; i < stream->n_samples_per_chunk; i++) {
|
|
guint j;
|
|
guint32 first_chunk, last_chunk, samples_per_chunk, sample_description_id;
|
|
|
|
first_chunk = gst_byte_reader_get_uint32_be_unchecked (&stream->stsc);
|
|
samples_per_chunk = gst_byte_reader_get_uint32_be_unchecked (&stream->stsc);
|
|
sample_description_id =
|
|
gst_byte_reader_get_uint32_be_unchecked (&stream->stsc);
|
|
|
|
if (i == stream->n_samples_per_chunk - 1) {
|
|
/* +1 because first_chunk is 1-based */
|
|
last_chunk = num_chunks + 1;
|
|
} else {
|
|
last_chunk = gst_byte_reader_peek_uint32_be_unchecked (&stream->stsc);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Merging first_chunk: %u, last_chunk: %u, samples_per_chunk: %u, sample_description_id: %u",
|
|
first_chunk, last_chunk, samples_per_chunk, sample_description_id);
|
|
|
|
gst_byte_writer_put_uint32_be (&stsc, first_chunk);
|
|
/* One sample in this chunk */
|
|
gst_byte_writer_put_uint32_be (&stsc, 1);
|
|
gst_byte_writer_put_uint32_be (&stsc, sample_description_id);
|
|
|
|
/* For each chunk write a stts and stsz entry now */
|
|
gst_byte_writer_put_uint32_be (&stts, last_chunk - first_chunk);
|
|
gst_byte_writer_put_uint32_be (&stts, stts_duration * samples_per_chunk);
|
|
for (j = first_chunk; j < last_chunk; j++) {
|
|
gst_byte_writer_put_uint32_be (&stsz,
|
|
stream->sample_size * samples_per_chunk);
|
|
}
|
|
|
|
stream->n_sample_times += 1;
|
|
stream->n_samples += last_chunk - first_chunk;
|
|
}
|
|
|
|
g_assert_cmpint (stream->n_samples, ==, num_chunks);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Have %u samples and %u sample times",
|
|
stream->n_samples, stream->n_sample_times);
|
|
|
|
/* We don't have a fixed sample size anymore */
|
|
stream->sample_size = 0;
|
|
|
|
/* Free old data for the atoms */
|
|
g_free ((gpointer) stream->stsz.data);
|
|
stream->stsz.data = NULL;
|
|
g_free ((gpointer) stream->stsc.data);
|
|
stream->stsc.data = NULL;
|
|
g_free ((gpointer) stream->stts.data);
|
|
stream->stts.data = NULL;
|
|
|
|
/* Store new data and replace byte readers */
|
|
stream->stsz.size = gst_byte_writer_get_size (&stsz);
|
|
stream->stsz.data = gst_byte_writer_reset_and_get_data (&stsz);
|
|
gst_byte_reader_init (&stream->stsz, stream->stsz.data, stream->stsz.size);
|
|
stream->stts.size = gst_byte_writer_get_size (&stts);
|
|
stream->stts.data = gst_byte_writer_reset_and_get_data (&stts);
|
|
gst_byte_reader_init (&stream->stts, stream->stts.data, stream->stts.size);
|
|
stream->stsc.size = gst_byte_writer_get_size (&stsc);
|
|
stream->stsc.data = gst_byte_writer_reset_and_get_data (&stsc);
|
|
gst_byte_reader_init (&stream->stsc, stream->stsc.data, stream->stsc.size);
|
|
}
|
|
|
|
/* initialise bytereaders for stbl sub-atoms */
|
|
static gboolean
|
|
qtdemux_stbl_init (GstQTDemux * qtdemux, QtDemuxStream * stream, GNode * stbl)
|
|
{
|
|
stream->stbl_index = -1; /* no samples have yet been parsed */
|
|
stream->sample_index = -1;
|
|
|
|
/* time-to-sample atom */
|
|
if (!qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stts, &stream->stts))
|
|
goto corrupt_file;
|
|
|
|
/* copy atom data into a new buffer for later use */
|
|
stream->stts.data = g_memdup2 (stream->stts.data, stream->stts.size);
|
|
|
|
/* skip version + flags */
|
|
if (!gst_byte_reader_skip (&stream->stts, 1 + 3) ||
|
|
!gst_byte_reader_get_uint32_be (&stream->stts, &stream->n_sample_times))
|
|
goto corrupt_file;
|
|
GST_LOG_OBJECT (qtdemux, "%u timestamp blocks", stream->n_sample_times);
|
|
|
|
/* make sure there's enough data */
|
|
if (!qt_atom_parser_has_chunks (&stream->stts, stream->n_sample_times, 8)) {
|
|
stream->n_sample_times = gst_byte_reader_get_remaining (&stream->stts) / 8;
|
|
GST_LOG_OBJECT (qtdemux, "overriding to %u timestamp blocks",
|
|
stream->n_sample_times);
|
|
if (!stream->n_sample_times)
|
|
goto corrupt_file;
|
|
}
|
|
|
|
/* sync sample atom */
|
|
stream->stps_present = FALSE;
|
|
if ((stream->stss_present =
|
|
! !qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stss,
|
|
&stream->stss) ? TRUE : FALSE) == TRUE) {
|
|
/* copy atom data into a new buffer for later use */
|
|
stream->stss.data = g_memdup2 (stream->stss.data, stream->stss.size);
|
|
|
|
/* skip version + flags */
|
|
if (!gst_byte_reader_skip (&stream->stss, 1 + 3) ||
|
|
!gst_byte_reader_get_uint32_be (&stream->stss, &stream->n_sample_syncs))
|
|
goto corrupt_file;
|
|
|
|
if (stream->n_sample_syncs) {
|
|
/* make sure there's enough data */
|
|
if (!qt_atom_parser_has_chunks (&stream->stss, stream->n_sample_syncs, 4))
|
|
goto corrupt_file;
|
|
}
|
|
|
|
/* partial sync sample atom */
|
|
if ((stream->stps_present =
|
|
! !qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stps,
|
|
&stream->stps) ? TRUE : FALSE) == TRUE) {
|
|
/* copy atom data into a new buffer for later use */
|
|
stream->stps.data = g_memdup2 (stream->stps.data, stream->stps.size);
|
|
|
|
/* skip version + flags */
|
|
if (!gst_byte_reader_skip (&stream->stps, 1 + 3) ||
|
|
!gst_byte_reader_get_uint32_be (&stream->stps,
|
|
&stream->n_sample_partial_syncs))
|
|
goto corrupt_file;
|
|
|
|
/* if there are no entries, the stss table contains the real
|
|
* sync samples */
|
|
if (stream->n_sample_partial_syncs) {
|
|
/* make sure there's enough data */
|
|
if (!qt_atom_parser_has_chunks (&stream->stps,
|
|
stream->n_sample_partial_syncs, 4))
|
|
goto corrupt_file;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* sample size */
|
|
if (!qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stsz, &stream->stsz))
|
|
goto no_samples;
|
|
|
|
/* copy atom data into a new buffer for later use */
|
|
stream->stsz.data = g_memdup2 (stream->stsz.data, stream->stsz.size);
|
|
|
|
/* skip version + flags */
|
|
if (!gst_byte_reader_skip (&stream->stsz, 1 + 3) ||
|
|
!gst_byte_reader_get_uint32_be (&stream->stsz, &stream->sample_size))
|
|
goto corrupt_file;
|
|
|
|
if (!gst_byte_reader_get_uint32_be (&stream->stsz, &stream->n_samples))
|
|
goto corrupt_file;
|
|
|
|
if (!stream->n_samples)
|
|
goto no_samples;
|
|
|
|
/* sample-to-chunk atom */
|
|
if (!qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stsc, &stream->stsc))
|
|
goto corrupt_file;
|
|
|
|
/* copy atom data into a new buffer for later use */
|
|
stream->stsc.data = g_memdup2 (stream->stsc.data, stream->stsc.size);
|
|
|
|
/* skip version + flags */
|
|
if (!gst_byte_reader_skip (&stream->stsc, 1 + 3) ||
|
|
!gst_byte_reader_get_uint32_be (&stream->stsc,
|
|
&stream->n_samples_per_chunk))
|
|
goto corrupt_file;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "n_samples_per_chunk %u",
|
|
stream->n_samples_per_chunk);
|
|
|
|
/* make sure there's enough data */
|
|
if (!qt_atom_parser_has_chunks (&stream->stsc, stream->n_samples_per_chunk,
|
|
12))
|
|
goto corrupt_file;
|
|
|
|
|
|
/* chunk offset */
|
|
if (qtdemux_tree_get_child_by_type_full (stbl, FOURCC_stco, &stream->stco))
|
|
stream->co_size = sizeof (guint32);
|
|
else if (qtdemux_tree_get_child_by_type_full (stbl, FOURCC_co64,
|
|
&stream->stco))
|
|
stream->co_size = sizeof (guint64);
|
|
else
|
|
goto corrupt_file;
|
|
|
|
/* copy atom data into a new buffer for later use */
|
|
stream->stco.data = g_memdup2 (stream->stco.data, stream->stco.size);
|
|
|
|
/* skip version + flags */
|
|
if (!gst_byte_reader_skip (&stream->stco, 1 + 3))
|
|
goto corrupt_file;
|
|
|
|
/* chunks_are_samples == TRUE means treat chunks as samples */
|
|
stream->chunks_are_samples = stream->sample_size
|
|
&& !CUR_STREAM (stream)->sampled;
|
|
if (stream->chunks_are_samples) {
|
|
/* treat chunks as samples */
|
|
if (!gst_byte_reader_get_uint32_be (&stream->stco, &stream->n_samples))
|
|
goto corrupt_file;
|
|
} else {
|
|
/* skip number of entries */
|
|
if (!gst_byte_reader_skip (&stream->stco, 4))
|
|
goto corrupt_file;
|
|
|
|
/* make sure there are enough data in the stsz atom */
|
|
if (!stream->sample_size) {
|
|
/* different sizes for each sample */
|
|
if (!qt_atom_parser_has_chunks (&stream->stsz, stream->n_samples, 4))
|
|
goto corrupt_file;
|
|
}
|
|
}
|
|
|
|
/* composition time-to-sample */
|
|
if ((stream->ctts_present =
|
|
! !qtdemux_tree_get_child_by_type_full (stbl, FOURCC_ctts,
|
|
&stream->ctts) ? TRUE : FALSE) == TRUE) {
|
|
GstByteReader cslg = GST_BYTE_READER_INIT (NULL, 0);
|
|
guint8 ctts_version;
|
|
gboolean checked_ctts = FALSE;
|
|
|
|
/* copy atom data into a new buffer for later use */
|
|
stream->ctts.data = g_memdup2 (stream->ctts.data, stream->ctts.size);
|
|
|
|
/* version 1 has signed offsets */
|
|
if (!gst_byte_reader_get_uint8 (&stream->ctts, &ctts_version))
|
|
goto corrupt_file;
|
|
|
|
/* flags */
|
|
if (!gst_byte_reader_skip (&stream->ctts, 3)
|
|
|| !gst_byte_reader_get_uint32_be (&stream->ctts,
|
|
&stream->n_composition_times))
|
|
goto corrupt_file;
|
|
|
|
/* make sure there's enough data */
|
|
if (!qt_atom_parser_has_chunks (&stream->ctts, stream->n_composition_times,
|
|
4 + 4))
|
|
goto corrupt_file;
|
|
|
|
/* This is optional, if missing we iterate the ctts */
|
|
if (qtdemux_tree_get_child_by_type_full (stbl, FOURCC_cslg, &cslg)) {
|
|
guint8 cslg_version;
|
|
|
|
/* cslg version 1 has 64 bit fields */
|
|
if (!gst_byte_reader_get_uint8 (&cslg, &cslg_version))
|
|
goto corrupt_file;
|
|
|
|
/* skip flags */
|
|
if (!gst_byte_reader_skip (&cslg, 3))
|
|
goto corrupt_file;
|
|
|
|
if (cslg_version == 0) {
|
|
gint32 composition_to_dts_shift;
|
|
|
|
if (!gst_byte_reader_get_int32_be (&cslg, &composition_to_dts_shift))
|
|
goto corrupt_file;
|
|
|
|
stream->cslg_shift = MAX (0, composition_to_dts_shift);
|
|
} else {
|
|
gint64 composition_to_dts_shift;
|
|
|
|
if (!gst_byte_reader_get_int64_be (&cslg, &composition_to_dts_shift))
|
|
goto corrupt_file;
|
|
|
|
stream->cslg_shift = MAX (0, composition_to_dts_shift);
|
|
}
|
|
} else {
|
|
gint32 cslg_least = 0;
|
|
guint num_entries, pos;
|
|
gint i;
|
|
|
|
pos = gst_byte_reader_get_pos (&stream->ctts);
|
|
num_entries = stream->n_composition_times;
|
|
|
|
checked_ctts = TRUE;
|
|
|
|
stream->cslg_shift = 0;
|
|
|
|
for (i = 0; i < num_entries; i++) {
|
|
gint32 offset;
|
|
|
|
gst_byte_reader_skip_unchecked (&stream->ctts, 4);
|
|
offset = gst_byte_reader_get_int32_be_unchecked (&stream->ctts);
|
|
/* HACK: if sample_offset is larger than 2 * duration, ignore the box.
|
|
* slightly inaccurate PTS could be more usable than corrupted one */
|
|
if (G_UNLIKELY ((ctts_version == 0 || offset != G_MININT32)
|
|
&& ABS (offset) / 2 > stream->duration)) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Ignore corrupted ctts, sample_offset %" G_GINT32_FORMAT
|
|
" larger than duration %" G_GUINT64_FORMAT, offset,
|
|
stream->duration);
|
|
|
|
stream->cslg_shift = 0;
|
|
stream->ctts_present = FALSE;
|
|
goto done;
|
|
}
|
|
|
|
/* Don't consider "no decode samples" with offset G_MININT32
|
|
* for the DTS/PTS shift */
|
|
if (offset != G_MININT32 && offset < cslg_least)
|
|
cslg_least = offset;
|
|
}
|
|
|
|
if (cslg_least < 0)
|
|
stream->cslg_shift = -cslg_least;
|
|
else
|
|
stream->cslg_shift = 0;
|
|
|
|
/* reset the reader so we can generate sample table */
|
|
gst_byte_reader_set_pos (&stream->ctts, pos);
|
|
}
|
|
|
|
/* Check if ctts values are looking reasonable if that didn't happen above */
|
|
if (!checked_ctts) {
|
|
guint num_entries, pos;
|
|
gint i;
|
|
|
|
pos = gst_byte_reader_get_pos (&stream->ctts);
|
|
num_entries = stream->n_composition_times;
|
|
|
|
for (i = 0; i < num_entries; i++) {
|
|
gint32 offset;
|
|
|
|
gst_byte_reader_skip_unchecked (&stream->ctts, 4);
|
|
offset = gst_byte_reader_get_int32_be_unchecked (&stream->ctts);
|
|
/* HACK: if sample_offset is larger than 2 * duration, ignore the box.
|
|
* slightly inaccurate PTS could be more usable than corrupted one */
|
|
if (G_UNLIKELY ((ctts_version == 0 || offset != G_MININT32)
|
|
&& ABS (offset) / 2 > stream->duration)) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Ignore corrupted ctts, sample_offset %" G_GINT32_FORMAT
|
|
" larger than duration %" G_GUINT64_FORMAT, offset,
|
|
stream->duration);
|
|
|
|
stream->cslg_shift = 0;
|
|
stream->ctts_present = FALSE;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/* reset the reader so we can generate sample table */
|
|
gst_byte_reader_set_pos (&stream->ctts, pos);
|
|
}
|
|
} else {
|
|
/* Ensure the cslg_shift value is consistent so we can use it
|
|
* unconditionally to produce TS and Segment */
|
|
stream->cslg_shift = 0;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Using clsg_shift %" G_GUINT64_FORMAT,
|
|
stream->cslg_shift);
|
|
|
|
/* For raw audio streams especially we might want to merge the samples
|
|
* to not output one audio sample per buffer. We're doing this here
|
|
* before allocating the sample tables so that from this point onwards
|
|
* the number of container samples are static */
|
|
if (stream->min_buffer_size > 0) {
|
|
qtdemux_merge_sample_table (qtdemux, stream);
|
|
}
|
|
|
|
done:
|
|
GST_DEBUG_OBJECT (qtdemux, "allocating n_samples %u * %u (%.2f MB)",
|
|
stream->n_samples, (guint) sizeof (QtDemuxSample),
|
|
stream->n_samples * sizeof (QtDemuxSample) / (1024.0 * 1024.0));
|
|
|
|
if (stream->n_samples >=
|
|
QTDEMUX_MAX_SAMPLE_INDEX_SIZE / sizeof (QtDemuxSample)) {
|
|
GST_WARNING_OBJECT (qtdemux, "not allocating index of %d samples, would "
|
|
"be larger than %uMB (broken file?)", stream->n_samples,
|
|
QTDEMUX_MAX_SAMPLE_INDEX_SIZE >> 20);
|
|
return FALSE;
|
|
}
|
|
|
|
g_assert (stream->samples == NULL);
|
|
stream->samples = g_try_new0 (QtDemuxSample, stream->n_samples);
|
|
if (!stream->samples) {
|
|
GST_WARNING_OBJECT (qtdemux, "failed to allocate %d samples",
|
|
stream->n_samples);
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
corrupt_file:
|
|
{
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("This file is corrupt and cannot be played.")), (NULL));
|
|
return FALSE;
|
|
}
|
|
no_samples:
|
|
{
|
|
gst_qtdemux_stbl_free (stream);
|
|
if (!qtdemux->fragmented) {
|
|
/* not quite good */
|
|
GST_WARNING_OBJECT (qtdemux, "stream has no samples");
|
|
return FALSE;
|
|
} else {
|
|
/* may pick up samples elsewhere */
|
|
return TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* collect samples from the next sample to be parsed up to sample @n for @stream
|
|
* by reading the info from @stbl
|
|
*
|
|
* This code can be executed from both the streaming thread and the seeking
|
|
* thread so it takes the object lock to protect itself
|
|
*/
|
|
static gboolean
|
|
qtdemux_parse_samples (GstQTDemux * qtdemux, QtDemuxStream * stream, guint32 n)
|
|
{
|
|
gint i, j, k;
|
|
QtDemuxSample *samples, *first, *cur, *last;
|
|
guint32 n_samples_per_chunk;
|
|
guint32 n_samples;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "parsing samples for stream fourcc %"
|
|
GST_FOURCC_FORMAT ", pad %s",
|
|
GST_FOURCC_ARGS (CUR_STREAM (stream)->fourcc),
|
|
stream->pad ? GST_PAD_NAME (stream->pad) : "(NULL)");
|
|
|
|
n_samples = stream->n_samples;
|
|
|
|
if (n >= n_samples)
|
|
goto out_of_samples;
|
|
|
|
GST_OBJECT_LOCK (qtdemux);
|
|
if (n <= stream->stbl_index)
|
|
goto already_parsed;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing up to sample %u", n);
|
|
|
|
if (!stream->stsz.data) {
|
|
/* so we already parsed and passed all the moov samples;
|
|
* onto fragmented ones */
|
|
g_assert (qtdemux->fragmented);
|
|
goto done;
|
|
}
|
|
|
|
/* pointer to the sample table */
|
|
samples = stream->samples;
|
|
|
|
/* starts from -1, moves to the next sample index to parse */
|
|
stream->stbl_index++;
|
|
|
|
/* keep track of the first and last sample to fill */
|
|
first = &samples[stream->stbl_index];
|
|
last = &samples[n];
|
|
|
|
if (!stream->chunks_are_samples) {
|
|
/* set the sample sizes */
|
|
if (stream->sample_size == 0) {
|
|
/* different sizes for each sample */
|
|
for (cur = first; cur <= last; cur++) {
|
|
cur->size = gst_byte_reader_get_uint32_be_unchecked (&stream->stsz);
|
|
GST_LOG_OBJECT (qtdemux, "sample %d has size %u",
|
|
(guint) (cur - samples), cur->size);
|
|
}
|
|
} else {
|
|
/* samples have the same size */
|
|
GST_LOG_OBJECT (qtdemux, "all samples have size %u", stream->sample_size);
|
|
for (cur = first; cur <= last; cur++)
|
|
cur->size = stream->sample_size;
|
|
}
|
|
}
|
|
|
|
n_samples_per_chunk = stream->n_samples_per_chunk;
|
|
cur = first;
|
|
|
|
for (i = stream->stsc_index; i < n_samples_per_chunk; i++) {
|
|
guint32 last_chunk;
|
|
|
|
if (stream->stsc_chunk_index >= stream->last_chunk
|
|
|| stream->stsc_chunk_index < stream->first_chunk) {
|
|
stream->first_chunk =
|
|
gst_byte_reader_get_uint32_be_unchecked (&stream->stsc);
|
|
stream->samples_per_chunk =
|
|
gst_byte_reader_get_uint32_be_unchecked (&stream->stsc);
|
|
/* starts from 1 */
|
|
stream->stsd_sample_description_id =
|
|
gst_byte_reader_get_uint32_be_unchecked (&stream->stsc) - 1;
|
|
|
|
/* chunk numbers are counted from 1 it seems */
|
|
if (G_UNLIKELY (stream->first_chunk == 0))
|
|
goto corrupt_file;
|
|
|
|
--stream->first_chunk;
|
|
|
|
/* the last chunk of each entry is calculated by taking the first chunk
|
|
* of the next entry; except if there is no next, where we fake it with
|
|
* INT_MAX */
|
|
if (G_UNLIKELY (i == (stream->n_samples_per_chunk - 1))) {
|
|
stream->last_chunk = G_MAXUINT32;
|
|
} else {
|
|
stream->last_chunk =
|
|
gst_byte_reader_peek_uint32_be_unchecked (&stream->stsc);
|
|
if (G_UNLIKELY (stream->last_chunk == 0))
|
|
goto corrupt_file;
|
|
|
|
--stream->last_chunk;
|
|
}
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"entry %d has first_chunk %d, last_chunk %d, samples_per_chunk %d"
|
|
"sample desc ID: %d", i, stream->first_chunk, stream->last_chunk,
|
|
stream->samples_per_chunk, stream->stsd_sample_description_id);
|
|
|
|
if (G_UNLIKELY (stream->last_chunk < stream->first_chunk))
|
|
goto corrupt_file;
|
|
|
|
if (stream->last_chunk != G_MAXUINT32) {
|
|
if (!qt_atom_parser_peek_sub (&stream->stco,
|
|
stream->first_chunk * stream->co_size,
|
|
(stream->last_chunk - stream->first_chunk) * stream->co_size,
|
|
&stream->co_chunk))
|
|
goto corrupt_file;
|
|
|
|
} else {
|
|
stream->co_chunk = stream->stco;
|
|
if (!gst_byte_reader_skip (&stream->co_chunk,
|
|
stream->first_chunk * stream->co_size))
|
|
goto corrupt_file;
|
|
}
|
|
|
|
stream->stsc_chunk_index = stream->first_chunk;
|
|
}
|
|
|
|
last_chunk = stream->last_chunk;
|
|
|
|
if (stream->chunks_are_samples) {
|
|
cur = &samples[stream->stsc_chunk_index];
|
|
|
|
for (j = stream->stsc_chunk_index; j < last_chunk; j++) {
|
|
if (j > n) {
|
|
/* save state */
|
|
stream->stsc_chunk_index = j;
|
|
goto done;
|
|
}
|
|
|
|
cur->offset =
|
|
qt_atom_parser_get_offset_unchecked (&stream->co_chunk,
|
|
stream->co_size);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "Created entry %d with offset "
|
|
"%" G_GUINT64_FORMAT, j, cur->offset);
|
|
|
|
if (CUR_STREAM (stream)->samples_per_frame > 0 &&
|
|
CUR_STREAM (stream)->bytes_per_frame > 0) {
|
|
cur->size =
|
|
(stream->samples_per_chunk * CUR_STREAM (stream)->n_channels) /
|
|
CUR_STREAM (stream)->samples_per_frame *
|
|
CUR_STREAM (stream)->bytes_per_frame;
|
|
} else {
|
|
cur->size = stream->samples_per_chunk;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"keyframe sample %d: timestamp %" GST_TIME_FORMAT ", size %u",
|
|
j, GST_TIME_ARGS (QTSTREAMTIME_TO_GSTTIME (stream,
|
|
stream->stco_sample_index)), cur->size);
|
|
|
|
cur->timestamp = stream->stco_sample_index;
|
|
cur->duration = stream->samples_per_chunk;
|
|
cur->keyframe = TRUE;
|
|
cur++;
|
|
|
|
stream->stco_sample_index += stream->samples_per_chunk;
|
|
}
|
|
stream->stsc_chunk_index = j;
|
|
} else {
|
|
for (j = stream->stsc_chunk_index; j < last_chunk; j++) {
|
|
guint32 samples_per_chunk;
|
|
guint64 chunk_offset;
|
|
|
|
if (!stream->stsc_sample_index
|
|
&& !qt_atom_parser_get_offset (&stream->co_chunk, stream->co_size,
|
|
&stream->chunk_offset))
|
|
goto corrupt_file;
|
|
|
|
samples_per_chunk = stream->samples_per_chunk;
|
|
chunk_offset = stream->chunk_offset;
|
|
|
|
for (k = stream->stsc_sample_index; k < samples_per_chunk; k++) {
|
|
GST_LOG_OBJECT (qtdemux, "creating entry %d with offset %"
|
|
G_GUINT64_FORMAT " and size %d",
|
|
(guint) (cur - samples), chunk_offset, cur->size);
|
|
|
|
cur->offset = chunk_offset;
|
|
chunk_offset += cur->size;
|
|
cur++;
|
|
|
|
if (G_UNLIKELY (cur > last)) {
|
|
/* save state */
|
|
stream->stsc_sample_index = k + 1;
|
|
stream->chunk_offset = chunk_offset;
|
|
stream->stsc_chunk_index = j;
|
|
goto done2;
|
|
}
|
|
}
|
|
stream->stsc_sample_index = 0;
|
|
}
|
|
stream->stsc_chunk_index = j;
|
|
}
|
|
stream->stsc_index++;
|
|
}
|
|
|
|
if (stream->chunks_are_samples)
|
|
goto ctts;
|
|
done2:
|
|
{
|
|
guint32 n_sample_times;
|
|
|
|
n_sample_times = stream->n_sample_times;
|
|
cur = first;
|
|
|
|
for (i = stream->stts_index; i < n_sample_times; i++) {
|
|
guint32 stts_samples;
|
|
gint32 stts_duration;
|
|
gint64 stts_time;
|
|
|
|
if (stream->stts_sample_index >= stream->stts_samples
|
|
|| !stream->stts_sample_index) {
|
|
|
|
stream->stts_samples =
|
|
gst_byte_reader_get_uint32_be_unchecked (&stream->stts);
|
|
stream->stts_duration =
|
|
gst_byte_reader_get_uint32_be_unchecked (&stream->stts);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "block %d, %u timestamps, duration %u",
|
|
i, stream->stts_samples, stream->stts_duration);
|
|
|
|
stream->stts_sample_index = 0;
|
|
}
|
|
|
|
stts_samples = stream->stts_samples;
|
|
stts_duration = stream->stts_duration;
|
|
stts_time = stream->stts_time;
|
|
|
|
for (j = stream->stts_sample_index; j < stts_samples; j++) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"sample %d: index %d, timestamp %" GST_TIME_FORMAT,
|
|
(guint) (cur - samples), j,
|
|
GST_TIME_ARGS (QTSTREAMTIME_TO_GSTTIME (stream, stts_time)));
|
|
|
|
cur->timestamp = stts_time;
|
|
cur->duration = stts_duration;
|
|
|
|
/* avoid 32-bit wrap-around,
|
|
* but still mind possible 'negative' duration */
|
|
stts_time += (gint64) stts_duration;
|
|
cur++;
|
|
|
|
if (G_UNLIKELY (cur > last)) {
|
|
/* save values */
|
|
stream->stts_time = stts_time;
|
|
stream->stts_sample_index = j + 1;
|
|
if (stream->stts_sample_index >= stream->stts_samples)
|
|
stream->stts_index++;
|
|
goto done3;
|
|
}
|
|
}
|
|
stream->stts_sample_index = 0;
|
|
stream->stts_time = stts_time;
|
|
stream->stts_index++;
|
|
}
|
|
/* fill up empty timestamps with the last timestamp, this can happen when
|
|
* the last samples do not decode and so we don't have timestamps for them.
|
|
* We however look at the last timestamp to estimate the track length so we
|
|
* need something in here. */
|
|
for (; cur < last; cur++) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"fill sample %d: timestamp %" GST_TIME_FORMAT,
|
|
(guint) (cur - samples),
|
|
GST_TIME_ARGS (QTSTREAMTIME_TO_GSTTIME (stream, stream->stts_time)));
|
|
cur->timestamp = stream->stts_time;
|
|
cur->duration = -1;
|
|
}
|
|
}
|
|
done3:
|
|
{
|
|
/* sample sync, can be NULL */
|
|
if (stream->stss_present == TRUE) {
|
|
guint32 n_sample_syncs;
|
|
|
|
n_sample_syncs = stream->n_sample_syncs;
|
|
|
|
if (!n_sample_syncs) {
|
|
GST_DEBUG_OBJECT (qtdemux, "all samples are keyframes");
|
|
stream->all_keyframe = TRUE;
|
|
} else {
|
|
for (i = stream->stss_index; i < n_sample_syncs; i++) {
|
|
/* note that the first sample is index 1, not 0 */
|
|
guint32 index;
|
|
|
|
index = gst_byte_reader_get_uint32_be_unchecked (&stream->stss);
|
|
|
|
if (G_LIKELY (index > 0 && index <= n_samples)) {
|
|
index -= 1;
|
|
samples[index].keyframe = TRUE;
|
|
GST_DEBUG_OBJECT (qtdemux, "samples at %u is keyframe", index);
|
|
/* and exit if we have enough samples */
|
|
if (G_UNLIKELY (index >= n)) {
|
|
i++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
/* save state */
|
|
stream->stss_index = i;
|
|
}
|
|
|
|
/* stps marks partial sync frames like open GOP I-Frames */
|
|
if (stream->stps_present == TRUE) {
|
|
guint32 n_sample_partial_syncs;
|
|
|
|
n_sample_partial_syncs = stream->n_sample_partial_syncs;
|
|
|
|
/* if there are no entries, the stss table contains the real
|
|
* sync samples */
|
|
if (n_sample_partial_syncs) {
|
|
for (i = stream->stps_index; i < n_sample_partial_syncs; i++) {
|
|
/* note that the first sample is index 1, not 0 */
|
|
guint32 index;
|
|
|
|
index = gst_byte_reader_get_uint32_be_unchecked (&stream->stps);
|
|
|
|
if (G_LIKELY (index > 0 && index <= n_samples)) {
|
|
index -= 1;
|
|
samples[index].keyframe = TRUE;
|
|
GST_DEBUG_OBJECT (qtdemux, "samples at %u is keyframe", index);
|
|
/* and exit if we have enough samples */
|
|
if (G_UNLIKELY (index >= n)) {
|
|
i++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
/* save state */
|
|
stream->stps_index = i;
|
|
}
|
|
}
|
|
} else {
|
|
/* no stss, all samples are keyframes */
|
|
stream->all_keyframe = TRUE;
|
|
GST_DEBUG_OBJECT (qtdemux, "setting all keyframes");
|
|
}
|
|
}
|
|
|
|
ctts:
|
|
/* composition time to sample */
|
|
if (stream->ctts_present == TRUE) {
|
|
guint32 n_composition_times;
|
|
guint32 ctts_count;
|
|
gint32 ctts_soffset;
|
|
|
|
/* Fill in the pts_offsets */
|
|
cur = first;
|
|
n_composition_times = stream->n_composition_times;
|
|
|
|
for (i = stream->ctts_index; i < n_composition_times; i++) {
|
|
if (stream->ctts_sample_index >= stream->ctts_count
|
|
|| !stream->ctts_sample_index) {
|
|
stream->ctts_count =
|
|
gst_byte_reader_get_uint32_be_unchecked (&stream->ctts);
|
|
stream->ctts_soffset =
|
|
gst_byte_reader_get_int32_be_unchecked (&stream->ctts);
|
|
stream->ctts_sample_index = 0;
|
|
}
|
|
|
|
ctts_count = stream->ctts_count;
|
|
ctts_soffset = stream->ctts_soffset;
|
|
|
|
/* FIXME: Set offset to 0 for "no decode samples". This needs
|
|
* to be handled in a codec specific manner ideally. */
|
|
if (ctts_soffset == G_MININT32)
|
|
ctts_soffset = 0;
|
|
|
|
for (j = stream->ctts_sample_index; j < ctts_count; j++) {
|
|
cur->pts_offset = ctts_soffset;
|
|
cur++;
|
|
|
|
if (G_UNLIKELY (cur > last)) {
|
|
/* save state */
|
|
stream->ctts_sample_index = j + 1;
|
|
goto done;
|
|
}
|
|
}
|
|
stream->ctts_sample_index = 0;
|
|
stream->ctts_index++;
|
|
}
|
|
}
|
|
done:
|
|
stream->stbl_index = n;
|
|
/* if index has been completely parsed, free data that is no-longer needed */
|
|
if (n + 1 == stream->n_samples) {
|
|
gst_qtdemux_stbl_free (stream);
|
|
GST_DEBUG_OBJECT (qtdemux, "parsed all available samples;");
|
|
if (qtdemux->pullbased) {
|
|
GST_DEBUG_OBJECT (qtdemux, "checking for more samples");
|
|
while (n + 1 == stream->n_samples)
|
|
if (qtdemux_add_fragmented_samples (qtdemux) != GST_FLOW_OK)
|
|
break;
|
|
}
|
|
}
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
|
|
return TRUE;
|
|
|
|
/* SUCCESS */
|
|
already_parsed:
|
|
{
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"Tried to parse up to sample %u but this sample has already been parsed",
|
|
n);
|
|
/* if fragmented, there may be more */
|
|
if (qtdemux->fragmented && n == stream->stbl_index)
|
|
goto done;
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
return TRUE;
|
|
}
|
|
/* ERRORS */
|
|
out_of_samples:
|
|
{
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"Tried to parse up to sample %u but there are only %u samples", n + 1,
|
|
stream->n_samples);
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("This file is corrupt and cannot be played.")), (NULL));
|
|
return FALSE;
|
|
}
|
|
corrupt_file:
|
|
{
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("This file is corrupt and cannot be played.")), (NULL));
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* collect all segment info for @stream.
|
|
*/
|
|
static gboolean
|
|
qtdemux_parse_segments (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GNode * trak)
|
|
{
|
|
GNode *edts;
|
|
/* accept edts if they contain gaps at start and there is only
|
|
* one media segment */
|
|
gboolean allow_pushbased_edts = TRUE;
|
|
gint media_segments_count = 0;
|
|
|
|
/* parse and prepare segment info from the edit list */
|
|
GST_DEBUG_OBJECT (qtdemux, "looking for edit list container");
|
|
stream->n_segments = 0;
|
|
stream->segments = NULL;
|
|
if ((edts = qtdemux_tree_get_child_by_type (trak, FOURCC_edts))) {
|
|
GNode *elst;
|
|
guint n_segments;
|
|
guint segment_number, entry_size;
|
|
guint64 time;
|
|
GstClockTime stime;
|
|
const guint8 *buffer;
|
|
guint8 version;
|
|
guint32 size;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "looking for edit list");
|
|
if (!(elst = qtdemux_tree_get_child_by_type (edts, FOURCC_elst)))
|
|
goto done;
|
|
|
|
buffer = elst->data;
|
|
|
|
size = QT_UINT32 (buffer);
|
|
/* version, flags, n_segments */
|
|
if (size < 16) {
|
|
GST_WARNING_OBJECT (qtdemux, "Invalid edit list");
|
|
goto done;
|
|
}
|
|
version = QT_UINT8 (buffer + 8);
|
|
entry_size = (version == 1) ? 20 : 12;
|
|
|
|
n_segments = QT_UINT32 (buffer + 12);
|
|
|
|
if (n_segments > 100000 || size < 16 + n_segments * entry_size) {
|
|
GST_WARNING_OBJECT (qtdemux, "Invalid edit list");
|
|
goto done;
|
|
}
|
|
|
|
/* we might allocate a bit too much, at least allocate 1 segment */
|
|
stream->segments = g_new (QtDemuxSegment, MAX (n_segments, 1));
|
|
|
|
/* segments always start from 0 */
|
|
time = 0;
|
|
stime = 0;
|
|
buffer += 16;
|
|
for (segment_number = 0; segment_number < n_segments; segment_number++) {
|
|
guint64 duration;
|
|
guint64 media_time;
|
|
gboolean empty_edit = FALSE;
|
|
QtDemuxSegment *segment;
|
|
guint32 rate_int;
|
|
GstClockTime media_start = GST_CLOCK_TIME_NONE;
|
|
|
|
if (version == 1) {
|
|
media_time = QT_UINT64 (buffer + 8);
|
|
duration = QT_UINT64 (buffer);
|
|
if (media_time == G_MAXUINT64)
|
|
empty_edit = TRUE;
|
|
} else {
|
|
media_time = QT_UINT32 (buffer + 4);
|
|
duration = QT_UINT32 (buffer);
|
|
if (media_time == G_MAXUINT32)
|
|
empty_edit = TRUE;
|
|
}
|
|
|
|
if (!empty_edit)
|
|
media_start = QTSTREAMTIME_TO_GSTTIME (stream, media_time);
|
|
|
|
segment = &stream->segments[segment_number];
|
|
|
|
/* time and duration expressed in global timescale */
|
|
segment->time = stime;
|
|
if (duration != 0 || empty_edit) {
|
|
/* edge case: empty edits with duration=zero are treated here.
|
|
* (files should not have these anyway). */
|
|
|
|
/* add non scaled values so we don't cause roundoff errors */
|
|
time += duration;
|
|
stime = QTTIME_TO_GSTTIME (qtdemux, time);
|
|
segment->duration = stime - segment->time;
|
|
} else {
|
|
/* zero duration does not imply media_start == media_stop
|
|
* but, only specify media_start. The edit ends with the track. */
|
|
stime = segment->duration = GST_CLOCK_TIME_NONE;
|
|
/* Don't allow more edits after this one. */
|
|
n_segments = segment_number + 1;
|
|
}
|
|
segment->stop_time = stime;
|
|
|
|
segment->trak_media_start = media_time;
|
|
/* media_time expressed in stream timescale */
|
|
if (!empty_edit) {
|
|
segment->media_start = media_start;
|
|
segment->media_stop = GST_CLOCK_TIME_IS_VALID (segment->duration)
|
|
? segment->media_start + segment->duration : GST_CLOCK_TIME_NONE;
|
|
media_segments_count++;
|
|
} else {
|
|
segment->media_start = GST_CLOCK_TIME_NONE;
|
|
segment->media_stop = GST_CLOCK_TIME_NONE;
|
|
}
|
|
rate_int = QT_UINT32 (buffer + ((version == 1) ? 16 : 8));
|
|
|
|
if (rate_int <= 1) {
|
|
/* 0 is not allowed, some programs write 1 instead of the floating point
|
|
* value */
|
|
GST_WARNING_OBJECT (qtdemux, "found suspicious rate %" G_GUINT32_FORMAT,
|
|
rate_int);
|
|
segment->rate = 1;
|
|
} else {
|
|
segment->rate = rate_int / 65536.0;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "created segment %d time %" GST_TIME_FORMAT
|
|
", duration %" GST_TIME_FORMAT ", media_start %" GST_TIME_FORMAT
|
|
" (%" G_GUINT64_FORMAT ") , media_stop %" GST_TIME_FORMAT
|
|
" stop_time %" GST_TIME_FORMAT " rate %g, (%d) timescale %u",
|
|
segment_number, GST_TIME_ARGS (segment->time),
|
|
GST_TIME_ARGS (segment->duration),
|
|
GST_TIME_ARGS (segment->media_start), media_time,
|
|
GST_TIME_ARGS (segment->media_stop),
|
|
GST_TIME_ARGS (segment->stop_time), segment->rate, rate_int,
|
|
stream->timescale);
|
|
if (segment->stop_time > qtdemux->segment.stop &&
|
|
!qtdemux->upstream_format_is_time) {
|
|
GST_WARNING_OBJECT (qtdemux, "Segment %d "
|
|
" extends to %" GST_TIME_FORMAT
|
|
" past the end of the declared movie duration %" GST_TIME_FORMAT
|
|
" movie segment will be extended", segment_number,
|
|
GST_TIME_ARGS (segment->stop_time),
|
|
GST_TIME_ARGS (qtdemux->segment.stop));
|
|
qtdemux->segment.stop = qtdemux->segment.duration = segment->stop_time;
|
|
}
|
|
|
|
buffer += entry_size;
|
|
}
|
|
GST_DEBUG_OBJECT (qtdemux, "found %d segments", n_segments);
|
|
stream->n_segments = n_segments;
|
|
if (media_segments_count != 1)
|
|
allow_pushbased_edts = FALSE;
|
|
}
|
|
done:
|
|
|
|
/* push based does not handle segments, so act accordingly here,
|
|
* and warn if applicable */
|
|
if (!qtdemux->pullbased && !allow_pushbased_edts) {
|
|
GST_WARNING_OBJECT (qtdemux, "streaming; discarding edit list segments");
|
|
/* remove and use default one below, we stream like it anyway */
|
|
g_free (stream->segments);
|
|
stream->segments = NULL;
|
|
stream->n_segments = 0;
|
|
}
|
|
|
|
/* no segments, create one to play the complete trak */
|
|
if (stream->n_segments == 0) {
|
|
GstClockTime stream_duration =
|
|
QTSTREAMTIME_TO_GSTTIME (stream, stream->duration);
|
|
|
|
if (stream->segments == NULL)
|
|
stream->segments = g_new (QtDemuxSegment, 1);
|
|
|
|
/* represent unknown our way */
|
|
if (stream_duration == 0)
|
|
stream_duration = GST_CLOCK_TIME_NONE;
|
|
|
|
stream->segments[0].time = 0;
|
|
stream->segments[0].stop_time = stream_duration;
|
|
stream->segments[0].duration = stream_duration;
|
|
stream->segments[0].media_start = 0;
|
|
stream->segments[0].media_stop = stream_duration;
|
|
stream->segments[0].rate = 1.0;
|
|
stream->segments[0].trak_media_start = 0;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "created dummy segment %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (stream_duration));
|
|
stream->n_segments = 1;
|
|
stream->dummy_segment = TRUE;
|
|
}
|
|
GST_DEBUG_OBJECT (qtdemux, "using %d segments", stream->n_segments);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* Parses the stsd atom of a svq3 trak looking for
|
|
* the SMI and gama atoms.
|
|
*/
|
|
static void
|
|
qtdemux_parse_svq3_stsd_data (GstQTDemux * qtdemux,
|
|
const guint8 * stsd_entry_data, const guint8 ** gamma, GstBuffer ** seqh)
|
|
{
|
|
const guint8 *_gamma = NULL;
|
|
GstBuffer *_seqh = NULL;
|
|
const guint8 *stsd_data = stsd_entry_data;
|
|
guint32 length = QT_UINT32 (stsd_data);
|
|
guint16 version;
|
|
|
|
if (length < 32) {
|
|
GST_WARNING_OBJECT (qtdemux, "stsd too short");
|
|
goto end;
|
|
}
|
|
|
|
stsd_data += 16;
|
|
length -= 16;
|
|
version = QT_UINT16 (stsd_data);
|
|
if (version == 3) {
|
|
if (length >= 70) {
|
|
length -= 70;
|
|
stsd_data += 70;
|
|
while (length > 8) {
|
|
guint32 fourcc, size;
|
|
const guint8 *data;
|
|
size = QT_UINT32 (stsd_data);
|
|
fourcc = QT_FOURCC (stsd_data + 4);
|
|
data = stsd_data + 8;
|
|
|
|
if (size == 0) {
|
|
GST_WARNING_OBJECT (qtdemux, "Atom of size 0 found, aborting "
|
|
"svq3 atom parsing");
|
|
goto end;
|
|
}
|
|
|
|
switch (fourcc) {
|
|
case FOURCC_gama:{
|
|
if (size == 12) {
|
|
_gamma = data;
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "Unexpected size %" G_GUINT32_FORMAT
|
|
" for gama atom, expected 12", size);
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_SMI_:{
|
|
if (size > 16 && QT_FOURCC (data) == FOURCC_SEQH) {
|
|
guint32 seqh_size;
|
|
if (_seqh != NULL) {
|
|
GST_WARNING_OBJECT (qtdemux, "Unexpected second SEQH SMI atom "
|
|
" found, ignoring");
|
|
} else {
|
|
seqh_size = QT_UINT32 (data + 4);
|
|
if (seqh_size > 0) {
|
|
_seqh = gst_buffer_new_and_alloc (seqh_size);
|
|
gst_buffer_fill (_seqh, 0, data + 8, seqh_size);
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
default:{
|
|
GST_WARNING_OBJECT (qtdemux, "Unhandled atom %" GST_FOURCC_FORMAT
|
|
" in SVQ3 entry in stsd atom", GST_FOURCC_ARGS (fourcc));
|
|
}
|
|
}
|
|
|
|
if (size <= length) {
|
|
length -= size;
|
|
stsd_data += size;
|
|
}
|
|
}
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "SVQ3 entry too short in stsd atom");
|
|
}
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "Unexpected version for SVQ3 entry %"
|
|
G_GUINT16_FORMAT, version);
|
|
goto end;
|
|
}
|
|
|
|
end:
|
|
if (gamma) {
|
|
*gamma = _gamma;
|
|
}
|
|
if (seqh) {
|
|
*seqh = _seqh;
|
|
} else if (_seqh) {
|
|
gst_buffer_unref (_seqh);
|
|
}
|
|
}
|
|
|
|
static gchar *
|
|
qtdemux_get_rtsp_uri_from_hndl (GstQTDemux * qtdemux, GNode * minf)
|
|
{
|
|
GNode *dinf;
|
|
GstByteReader dref;
|
|
gchar *uri = NULL;
|
|
|
|
/*
|
|
* Get 'dinf', to get its child 'dref', that might contain a 'hndl'
|
|
* atom that might contain a 'data' atom with the rtsp uri.
|
|
* This case was reported in bug #597497, some info about
|
|
* the hndl atom can be found in TN1195
|
|
*/
|
|
dinf = qtdemux_tree_get_child_by_type (minf, FOURCC_dinf);
|
|
GST_DEBUG_OBJECT (qtdemux, "Trying to obtain rtsp URI for stream trak");
|
|
|
|
if (dinf) {
|
|
guint32 dref_num_entries = 0;
|
|
if (qtdemux_tree_get_child_by_type_full (dinf, FOURCC_dref, &dref) &&
|
|
gst_byte_reader_skip (&dref, 4) &&
|
|
gst_byte_reader_get_uint32_be (&dref, &dref_num_entries)) {
|
|
gint i;
|
|
|
|
/* search dref entries for hndl atom */
|
|
for (i = 0; i < dref_num_entries; i++) {
|
|
guint32 size = 0, type;
|
|
guint8 string_len = 0;
|
|
if (gst_byte_reader_get_uint32_be (&dref, &size) &&
|
|
qt_atom_parser_get_fourcc (&dref, &type)) {
|
|
if (type == FOURCC_hndl) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Found hndl atom");
|
|
|
|
/* skip data reference handle bytes and the
|
|
* following pascal string and some extra 4
|
|
* bytes I have no idea what are */
|
|
if (!gst_byte_reader_skip (&dref, 4) ||
|
|
!gst_byte_reader_get_uint8 (&dref, &string_len) ||
|
|
!gst_byte_reader_skip (&dref, string_len + 4)) {
|
|
GST_WARNING_OBJECT (qtdemux, "Failed to parse hndl atom");
|
|
break;
|
|
}
|
|
|
|
/* iterate over the atoms to find the data atom */
|
|
while (gst_byte_reader_get_remaining (&dref) >= 8) {
|
|
guint32 atom_size;
|
|
guint32 atom_type;
|
|
|
|
if (gst_byte_reader_get_uint32_be (&dref, &atom_size) &&
|
|
qt_atom_parser_get_fourcc (&dref, &atom_type)) {
|
|
if (atom_type == FOURCC_data) {
|
|
const guint8 *uri_aux = NULL;
|
|
|
|
/* found the data atom that might contain the rtsp uri */
|
|
GST_DEBUG_OBJECT (qtdemux, "Found data atom inside "
|
|
"hndl atom, interpreting it as an URI");
|
|
if (gst_byte_reader_peek_data (&dref, atom_size - 8,
|
|
&uri_aux)) {
|
|
if (g_strstr_len ((gchar *) uri_aux, 7, "rtsp://") != NULL)
|
|
uri = g_strndup ((gchar *) uri_aux, atom_size - 8);
|
|
else
|
|
GST_WARNING_OBJECT (qtdemux, "Data atom in hndl atom "
|
|
"didn't contain a rtsp address");
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "Failed to get the data "
|
|
"atom contents");
|
|
}
|
|
break;
|
|
}
|
|
/* skipping to the next entry */
|
|
if (!gst_byte_reader_skip (&dref, atom_size - 8))
|
|
break;
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "Failed to parse hndl child "
|
|
"atom header");
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
/* skip to the next entry */
|
|
if (!gst_byte_reader_skip (&dref, size - 8))
|
|
break;
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "Error parsing dref atom");
|
|
}
|
|
}
|
|
GST_DEBUG_OBJECT (qtdemux, "Finished parsing dref atom");
|
|
}
|
|
}
|
|
return uri;
|
|
}
|
|
|
|
#define AMR_NB_ALL_MODES 0x81ff
|
|
#define AMR_WB_ALL_MODES 0x83ff
|
|
static guint
|
|
qtdemux_parse_amr_bitrate (GstBuffer * buf, gboolean wb)
|
|
{
|
|
/* The 'damr' atom is of the form:
|
|
*
|
|
* | vendor | decoder_ver | mode_set | mode_change_period | frames/sample |
|
|
* 32 b 8 b 16 b 8 b 8 b
|
|
*
|
|
* The highest set bit of the first 7 (AMR-NB) or 8 (AMR-WB) bits of mode_set
|
|
* represents the highest mode used in the stream (and thus the maximum
|
|
* bitrate), with a couple of special cases as seen below.
|
|
*/
|
|
|
|
/* Map of frame type ID -> bitrate */
|
|
static const guint nb_bitrates[] = {
|
|
4750, 5150, 5900, 6700, 7400, 7950, 10200, 12200
|
|
};
|
|
static const guint wb_bitrates[] = {
|
|
6600, 8850, 12650, 14250, 15850, 18250, 19850, 23050, 23850
|
|
};
|
|
GstMapInfo map;
|
|
gsize max_mode;
|
|
guint16 mode_set;
|
|
|
|
gst_buffer_map (buf, &map, GST_MAP_READ);
|
|
|
|
if (map.size != 0x11) {
|
|
GST_DEBUG ("Atom should have size 0x11, not %" G_GSIZE_FORMAT, map.size);
|
|
goto bad_data;
|
|
}
|
|
|
|
if (QT_FOURCC (map.data + 4) != FOURCC_damr) {
|
|
GST_DEBUG ("Unknown atom in %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (QT_UINT32 (map.data + 4)));
|
|
goto bad_data;
|
|
}
|
|
|
|
mode_set = QT_UINT16 (map.data + 13);
|
|
|
|
if (mode_set == (wb ? AMR_WB_ALL_MODES : AMR_NB_ALL_MODES))
|
|
max_mode = 7 + (wb ? 1 : 0);
|
|
else
|
|
/* AMR-NB modes fo from 0-7, and AMR-WB modes go from 0-8 */
|
|
max_mode = g_bit_nth_msf ((gulong) mode_set & (wb ? 0x1ff : 0xff), -1);
|
|
|
|
if (max_mode == -1) {
|
|
GST_DEBUG ("No mode indication was found (mode set) = %x",
|
|
(guint) mode_set);
|
|
goto bad_data;
|
|
}
|
|
|
|
gst_buffer_unmap (buf, &map);
|
|
return wb ? wb_bitrates[max_mode] : nb_bitrates[max_mode];
|
|
|
|
bad_data:
|
|
gst_buffer_unmap (buf, &map);
|
|
return 0;
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_transformation_matrix (GstQTDemux * qtdemux,
|
|
GstByteReader * reader, guint32 * matrix, const gchar * atom)
|
|
{
|
|
/*
|
|
* 9 values of 32 bits (fixed point 16.16, except 2 5 and 8 that are 2.30)
|
|
* [0 1 2]
|
|
* [3 4 5]
|
|
* [6 7 8]
|
|
*/
|
|
|
|
if (gst_byte_reader_get_remaining (reader) < 36)
|
|
return FALSE;
|
|
|
|
matrix[0] = gst_byte_reader_get_uint32_be_unchecked (reader);
|
|
matrix[1] = gst_byte_reader_get_uint32_be_unchecked (reader);
|
|
matrix[2] = gst_byte_reader_get_uint32_be_unchecked (reader);
|
|
matrix[3] = gst_byte_reader_get_uint32_be_unchecked (reader);
|
|
matrix[4] = gst_byte_reader_get_uint32_be_unchecked (reader);
|
|
matrix[5] = gst_byte_reader_get_uint32_be_unchecked (reader);
|
|
matrix[6] = gst_byte_reader_get_uint32_be_unchecked (reader);
|
|
matrix[7] = gst_byte_reader_get_uint32_be_unchecked (reader);
|
|
matrix[8] = gst_byte_reader_get_uint32_be_unchecked (reader);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Transformation matrix from atom %s", atom);
|
|
GST_DEBUG_OBJECT (qtdemux, "%u.%u %u.%u %u.%u", matrix[0] >> 16,
|
|
matrix[0] & 0xFFFF, matrix[1] >> 16, matrix[1] & 0xFF, matrix[2] >> 16,
|
|
matrix[2] & 0xFF);
|
|
GST_DEBUG_OBJECT (qtdemux, "%u.%u %u.%u %u.%u", matrix[3] >> 16,
|
|
matrix[3] & 0xFFFF, matrix[4] >> 16, matrix[4] & 0xFF, matrix[5] >> 16,
|
|
matrix[5] & 0xFF);
|
|
GST_DEBUG_OBJECT (qtdemux, "%u.%u %u.%u %u.%u", matrix[6] >> 16,
|
|
matrix[6] & 0xFFFF, matrix[7] >> 16, matrix[7] & 0xFF, matrix[8] >> 16,
|
|
matrix[8] & 0xFF);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
qtdemux_inspect_transformation_matrix (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream, guint32 * matrix, GstTagList ** taglist)
|
|
{
|
|
|
|
/* [a b c]
|
|
* [d e f]
|
|
* [g h i]
|
|
*
|
|
* This macro will only compare value abdegh, it expects cfi to have already
|
|
* been checked
|
|
*/
|
|
#define QTCHECK_MATRIX(m,a,b,d,e) ((m)[0] == (a << 16) && (m)[1] == (b << 16) && \
|
|
(m)[3] == (d << 16) && (m)[4] == (e << 16))
|
|
|
|
/* only handle the cases where the last column has standard values */
|
|
if (matrix[2] == 0 && matrix[5] == 0 && matrix[8] == 1 << 30) {
|
|
const gchar *rotation_tag = NULL;
|
|
|
|
/* no rotation needed */
|
|
if (QTCHECK_MATRIX (matrix, 1, 0, 0, 1)) {
|
|
/* NOP */
|
|
} else if (QTCHECK_MATRIX (matrix, 0, 1, G_MAXUINT16, 0)) {
|
|
rotation_tag = "rotate-90";
|
|
} else if (QTCHECK_MATRIX (matrix, G_MAXUINT16, 0, 0, G_MAXUINT16)) {
|
|
rotation_tag = "rotate-180";
|
|
} else if (QTCHECK_MATRIX (matrix, 0, G_MAXUINT16, 1, 0)) {
|
|
rotation_tag = "rotate-270";
|
|
} else {
|
|
GST_FIXME_OBJECT (qtdemux, "Unhandled transformation matrix values");
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Transformation matrix rotation %s",
|
|
GST_STR_NULL (rotation_tag));
|
|
if (rotation_tag != NULL) {
|
|
if (*taglist == NULL)
|
|
*taglist = gst_tag_list_new_empty ();
|
|
gst_tag_list_add (*taglist, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_IMAGE_ORIENTATION, rotation_tag, NULL);
|
|
}
|
|
} else {
|
|
GST_FIXME_OBJECT (qtdemux, "Unhandled transformation matrix values");
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_protection_aavd (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream, GNode * container, guint32 * original_fmt)
|
|
{
|
|
GNode *adrm;
|
|
guint32 adrm_size;
|
|
GstBuffer *adrm_buf = NULL;
|
|
QtDemuxAavdEncryptionInfo *info;
|
|
|
|
adrm = qtdemux_tree_get_child_by_type (container, FOURCC_adrm);
|
|
if (G_UNLIKELY (!adrm)) {
|
|
GST_ERROR_OBJECT (qtdemux, "aavd box does not contain mandatory adrm box");
|
|
return FALSE;
|
|
}
|
|
adrm_size = QT_UINT32 (adrm->data);
|
|
adrm_buf = gst_buffer_new_memdup (adrm->data, adrm_size);
|
|
|
|
stream->protection_scheme_type = FOURCC_aavd;
|
|
|
|
if (!stream->protection_scheme_info)
|
|
stream->protection_scheme_info = g_new0 (QtDemuxAavdEncryptionInfo, 1);
|
|
|
|
info = (QtDemuxAavdEncryptionInfo *) stream->protection_scheme_info;
|
|
|
|
if (info->default_properties)
|
|
gst_structure_free (info->default_properties);
|
|
info->default_properties = gst_structure_new ("application/x-aavd",
|
|
"encrypted", G_TYPE_BOOLEAN, TRUE,
|
|
"adrm", GST_TYPE_BUFFER, adrm_buf, NULL);
|
|
gst_buffer_unref (adrm_buf);
|
|
|
|
*original_fmt = FOURCC_mp4a;
|
|
return TRUE;
|
|
}
|
|
|
|
/* Parses the boxes defined in ISO/IEC 14496-12 that enable support for
|
|
* protected streams (sinf, frma, schm and schi); if the protection scheme is
|
|
* Common Encryption (cenc), the function will also parse the tenc box (defined
|
|
* in ISO/IEC 23001-7). @container points to the node that contains these boxes
|
|
* (typically an enc[v|a|t|s] sample entry); the function will set
|
|
* @original_fmt to the fourcc of the original unencrypted stream format.
|
|
* Returns TRUE if successful; FALSE otherwise. */
|
|
static gboolean
|
|
qtdemux_parse_protection_scheme_info (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream, GNode * container, guint32 * original_fmt)
|
|
{
|
|
GNode *sinf;
|
|
GNode *frma;
|
|
GNode *schm;
|
|
GNode *schi;
|
|
QtDemuxCencSampleSetInfo *info;
|
|
GNode *tenc;
|
|
const guint8 *tenc_data;
|
|
|
|
g_return_val_if_fail (qtdemux != NULL, FALSE);
|
|
g_return_val_if_fail (stream != NULL, FALSE);
|
|
g_return_val_if_fail (container != NULL, FALSE);
|
|
g_return_val_if_fail (original_fmt != NULL, FALSE);
|
|
|
|
sinf = qtdemux_tree_get_child_by_type (container, FOURCC_sinf);
|
|
if (G_UNLIKELY (!sinf)) {
|
|
if (stream->protection_scheme_type == FOURCC_cenc
|
|
|| stream->protection_scheme_type == FOURCC_cbcs) {
|
|
GST_ERROR_OBJECT (qtdemux, "sinf box does not contain schi box, which is "
|
|
"mandatory for Common Encryption");
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
frma = qtdemux_tree_get_child_by_type (sinf, FOURCC_frma);
|
|
if (G_UNLIKELY (!frma)) {
|
|
GST_ERROR_OBJECT (qtdemux, "sinf box does not contain mandatory frma box");
|
|
return FALSE;
|
|
}
|
|
|
|
*original_fmt = QT_FOURCC ((const guint8 *) frma->data + 8);
|
|
GST_DEBUG_OBJECT (qtdemux, "original stream format: '%" GST_FOURCC_FORMAT "'",
|
|
GST_FOURCC_ARGS (*original_fmt));
|
|
|
|
schm = qtdemux_tree_get_child_by_type (sinf, FOURCC_schm);
|
|
if (!schm) {
|
|
GST_DEBUG_OBJECT (qtdemux, "sinf box does not contain schm box");
|
|
return FALSE;
|
|
}
|
|
stream->protection_scheme_type = QT_FOURCC ((const guint8 *) schm->data + 12);
|
|
stream->protection_scheme_version =
|
|
QT_UINT32 ((const guint8 *) schm->data + 16);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"protection_scheme_type: %" GST_FOURCC_FORMAT ", "
|
|
"protection_scheme_version: %#010x",
|
|
GST_FOURCC_ARGS (stream->protection_scheme_type),
|
|
stream->protection_scheme_version);
|
|
|
|
schi = qtdemux_tree_get_child_by_type (sinf, FOURCC_schi);
|
|
if (!schi) {
|
|
GST_DEBUG_OBJECT (qtdemux, "sinf box does not contain schi box");
|
|
return FALSE;
|
|
}
|
|
if (stream->protection_scheme_type != FOURCC_cenc &&
|
|
stream->protection_scheme_type != FOURCC_piff &&
|
|
stream->protection_scheme_type != FOURCC_cbcs) {
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"Invalid protection_scheme_type: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (stream->protection_scheme_type));
|
|
return FALSE;
|
|
}
|
|
|
|
if (G_UNLIKELY (!stream->protection_scheme_info))
|
|
stream->protection_scheme_info =
|
|
g_malloc0 (sizeof (QtDemuxCencSampleSetInfo));
|
|
|
|
info = (QtDemuxCencSampleSetInfo *) stream->protection_scheme_info;
|
|
|
|
if (stream->protection_scheme_type == FOURCC_cenc
|
|
|| stream->protection_scheme_type == FOURCC_cbcs) {
|
|
guint8 is_encrypted;
|
|
guint8 iv_size;
|
|
guint8 constant_iv_size = 0;
|
|
const guint8 *default_kid;
|
|
guint8 crypt_byte_block = 0;
|
|
guint8 skip_byte_block = 0;
|
|
const guint8 *constant_iv = NULL;
|
|
|
|
tenc = qtdemux_tree_get_child_by_type (schi, FOURCC_tenc);
|
|
if (!tenc) {
|
|
GST_ERROR_OBJECT (qtdemux, "schi box does not contain tenc box, "
|
|
"which is mandatory for Common Encryption");
|
|
return FALSE;
|
|
}
|
|
tenc_data = (const guint8 *) tenc->data + 12;
|
|
is_encrypted = QT_UINT8 (tenc_data + 2);
|
|
iv_size = QT_UINT8 (tenc_data + 3);
|
|
default_kid = (tenc_data + 4);
|
|
if (stream->protection_scheme_type == FOURCC_cbcs) {
|
|
guint8 possible_pattern_info;
|
|
if (iv_size == 0) {
|
|
constant_iv_size = QT_UINT8 (tenc_data + 20);
|
|
if (constant_iv_size != 8 && constant_iv_size != 16) {
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"constant IV size should be 8 or 16, not %hhu", constant_iv_size);
|
|
return FALSE;
|
|
}
|
|
constant_iv = (tenc_data + 21);
|
|
}
|
|
possible_pattern_info = QT_UINT8 (tenc_data + 1);
|
|
crypt_byte_block = (possible_pattern_info >> 4) & 0x0f;
|
|
skip_byte_block = possible_pattern_info & 0x0f;
|
|
}
|
|
qtdemux_update_default_sample_cenc_settings (qtdemux, info,
|
|
is_encrypted, stream->protection_scheme_type, iv_size, default_kid,
|
|
crypt_byte_block, skip_byte_block, constant_iv_size, constant_iv);
|
|
} else if (stream->protection_scheme_type == FOURCC_piff) {
|
|
GstByteReader br;
|
|
static const guint8 piff_track_encryption_uuid[] = {
|
|
0x89, 0x74, 0xdb, 0xce, 0x7b, 0xe7, 0x4c, 0x51,
|
|
0x84, 0xf9, 0x71, 0x48, 0xf9, 0x88, 0x25, 0x54
|
|
};
|
|
|
|
tenc = qtdemux_tree_get_child_by_type (schi, FOURCC_uuid);
|
|
if (!tenc) {
|
|
GST_ERROR_OBJECT (qtdemux, "schi box does not contain tenc box, "
|
|
"which is mandatory for Common Encryption");
|
|
return FALSE;
|
|
}
|
|
|
|
tenc_data = (const guint8 *) tenc->data + 8;
|
|
if (memcmp (tenc_data, piff_track_encryption_uuid, 16) != 0) {
|
|
gchar *box_uuid = qtdemux_uuid_bytes_to_string (tenc_data);
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"Unsupported track encryption box with uuid: %s", box_uuid);
|
|
g_free (box_uuid);
|
|
return FALSE;
|
|
}
|
|
tenc_data = (const guint8 *) tenc->data + 16 + 12;
|
|
gst_byte_reader_init (&br, tenc_data, 20);
|
|
if (!qtdemux_update_default_piff_encryption_settings (qtdemux, info, &br)) {
|
|
GST_ERROR_OBJECT (qtdemux, "PIFF track box parsing error");
|
|
return FALSE;
|
|
}
|
|
stream->protection_scheme_type = FOURCC_cenc;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gint
|
|
qtdemux_track_id_compare_func (QtDemuxStream ** stream1,
|
|
QtDemuxStream ** stream2)
|
|
{
|
|
return (gint) (*stream1)->track_id - (gint) (*stream2)->track_id;
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_parse_stereo_svmi_atom (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GNode * stbl)
|
|
{
|
|
GNode *svmi;
|
|
|
|
/*parse svmi header if existing */
|
|
svmi = qtdemux_tree_get_child_by_type (stbl, FOURCC_svmi);
|
|
if (svmi) {
|
|
guint32 len = QT_UINT32 ((guint8 *) svmi->data);
|
|
guint32 version = QT_UINT32 ((guint8 *) svmi->data + 8);
|
|
if (!version) {
|
|
GstVideoMultiviewMode mode = GST_VIDEO_MULTIVIEW_MODE_NONE;
|
|
GstVideoMultiviewFlags flags = GST_VIDEO_MULTIVIEW_FLAGS_NONE;
|
|
guint8 frame_type, frame_layout;
|
|
guint32 stereo_mono_change_count;
|
|
|
|
if (len < 18)
|
|
return FALSE;
|
|
|
|
/* MPEG-A stereo video */
|
|
if (qtdemux->major_brand == FOURCC_ss02)
|
|
flags |= GST_VIDEO_MULTIVIEW_FLAGS_MIXED_MONO;
|
|
|
|
frame_type = QT_UINT8 ((guint8 *) svmi->data + 12);
|
|
frame_layout = QT_UINT8 ((guint8 *) svmi->data + 13) & 0x01;
|
|
stereo_mono_change_count = QT_UINT32 ((guint8 *) svmi->data + 14);
|
|
|
|
switch (frame_type) {
|
|
case 0:
|
|
mode = GST_VIDEO_MULTIVIEW_MODE_SIDE_BY_SIDE;
|
|
break;
|
|
case 1:
|
|
mode = GST_VIDEO_MULTIVIEW_MODE_ROW_INTERLEAVED;
|
|
break;
|
|
case 2:
|
|
mode = GST_VIDEO_MULTIVIEW_MODE_FRAME_BY_FRAME;
|
|
break;
|
|
case 3:
|
|
/* mode 3 is primary/secondary view sequence, ie
|
|
* left/right views in separate tracks. See section 7.2
|
|
* of ISO/IEC 23000-11:2009 */
|
|
/* In the future this might be supported using related
|
|
* streams, like an enhancement track - if files like this
|
|
* ever exist */
|
|
GST_FIXME_OBJECT (qtdemux,
|
|
"Implement stereo video in separate streams");
|
|
}
|
|
|
|
if ((frame_layout & 0x1) == 0)
|
|
flags |= GST_VIDEO_MULTIVIEW_FLAGS_RIGHT_VIEW_FIRST;
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"StereoVideo: composition type: %u, is_left_first: %u",
|
|
frame_type, frame_layout);
|
|
|
|
if (stereo_mono_change_count > 1) {
|
|
GST_FIXME_OBJECT (qtdemux,
|
|
"Mixed-mono flags are not yet supported in qtdemux.");
|
|
}
|
|
|
|
stream->multiview_mode = mode;
|
|
stream->multiview_flags = flags;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* parse the traks.
|
|
* With each track we associate a new QtDemuxStream that contains all the info
|
|
* about the trak.
|
|
* traks that do not decode to something (like strm traks) will not have a pad.
|
|
*/
|
|
static gboolean
|
|
qtdemux_parse_trak (GstQTDemux * qtdemux, GNode * trak)
|
|
{
|
|
GstByteReader tkhd;
|
|
int offset;
|
|
GNode *mdia;
|
|
GNode *mdhd;
|
|
GNode *hdlr;
|
|
GNode *minf;
|
|
GNode *stbl;
|
|
GNode *stsd;
|
|
GNode *mp4a;
|
|
GNode *mp4v;
|
|
GNode *esds;
|
|
GNode *tref;
|
|
GNode *udta;
|
|
|
|
QtDemuxStream *stream = NULL;
|
|
const guint8 *stsd_data;
|
|
const guint8 *stsd_entry_data;
|
|
guint remaining_stsd_len;
|
|
guint stsd_entry_count;
|
|
guint stsd_index;
|
|
guint16 lang_code; /* quicktime lang code or packed iso code */
|
|
guint32 version;
|
|
guint32 tkhd_flags = 0;
|
|
guint8 tkhd_version = 0;
|
|
guint32 w = 0, h = 0;
|
|
guint value_size, stsd_len, len;
|
|
guint32 track_id;
|
|
guint32 dummy;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "parse_trak");
|
|
|
|
if (!qtdemux_tree_get_child_by_type_full (trak, FOURCC_tkhd, &tkhd)
|
|
|| !gst_byte_reader_get_uint8 (&tkhd, &tkhd_version)
|
|
|| !gst_byte_reader_get_uint24_be (&tkhd, &tkhd_flags))
|
|
goto corrupt_file;
|
|
|
|
/* pick between 64 or 32 bits */
|
|
value_size = tkhd_version == 1 ? 8 : 4;
|
|
if (!gst_byte_reader_skip (&tkhd, value_size * 2) ||
|
|
!gst_byte_reader_get_uint32_be (&tkhd, &track_id))
|
|
goto corrupt_file;
|
|
|
|
/* Check if current moov has duplicated track_id */
|
|
if (qtdemux_find_stream (qtdemux, track_id))
|
|
goto existing_stream;
|
|
|
|
stream = _create_stream (qtdemux, track_id);
|
|
stream->stream_tags = gst_tag_list_make_writable (stream->stream_tags);
|
|
|
|
/* need defaults for fragments */
|
|
qtdemux_parse_trex (qtdemux, stream, &dummy, &dummy, &dummy);
|
|
|
|
if ((tkhd_flags & 1) == 0)
|
|
stream->disabled = TRUE;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "track[tkhd] version/flags/id: 0x%02x/%06x/%u",
|
|
tkhd_version, tkhd_flags, stream->track_id);
|
|
|
|
if (!(mdia = qtdemux_tree_get_child_by_type (trak, FOURCC_mdia)))
|
|
goto corrupt_file;
|
|
|
|
if (!(mdhd = qtdemux_tree_get_child_by_type (mdia, FOURCC_mdhd))) {
|
|
/* be nice for some crooked mjp2 files that use mhdr for mdhd */
|
|
if (qtdemux->major_brand != FOURCC_mjp2 ||
|
|
!(mdhd = qtdemux_tree_get_child_by_type (mdia, FOURCC_mhdr)))
|
|
goto corrupt_file;
|
|
}
|
|
|
|
len = QT_UINT32 ((guint8 *) mdhd->data);
|
|
version = QT_UINT32 ((guint8 *) mdhd->data + 8);
|
|
GST_LOG_OBJECT (qtdemux, "track version/flags: %08x", version);
|
|
if (version == 0x01000000) {
|
|
if (len < 42)
|
|
goto corrupt_file;
|
|
stream->timescale = QT_UINT32 ((guint8 *) mdhd->data + 28);
|
|
stream->duration = QT_UINT64 ((guint8 *) mdhd->data + 32);
|
|
lang_code = QT_UINT16 ((guint8 *) mdhd->data + 40);
|
|
} else {
|
|
if (len < 30)
|
|
goto corrupt_file;
|
|
stream->timescale = QT_UINT32 ((guint8 *) mdhd->data + 20);
|
|
stream->duration = QT_UINT32 ((guint8 *) mdhd->data + 24);
|
|
lang_code = QT_UINT16 ((guint8 *) mdhd->data + 28);
|
|
}
|
|
|
|
if (lang_code < 0x400) {
|
|
qtdemux_lang_map_qt_code_to_iso (stream->lang_id, lang_code);
|
|
} else if (lang_code == 0x7fff) {
|
|
stream->lang_id[0] = 0; /* unspecified */
|
|
} else {
|
|
stream->lang_id[0] = 0x60 + ((lang_code >> 10) & 0x1F);
|
|
stream->lang_id[1] = 0x60 + ((lang_code >> 5) & 0x1F);
|
|
stream->lang_id[2] = 0x60 + (lang_code & 0x1F);
|
|
stream->lang_id[3] = 0;
|
|
}
|
|
|
|
GST_LOG_OBJECT (qtdemux, "track timescale: %" G_GUINT32_FORMAT,
|
|
stream->timescale);
|
|
GST_LOG_OBJECT (qtdemux, "track duration: %" G_GUINT64_FORMAT,
|
|
stream->duration);
|
|
GST_LOG_OBJECT (qtdemux, "track language code/id: 0x%04x/%s",
|
|
lang_code, stream->lang_id);
|
|
|
|
if (G_UNLIKELY (stream->timescale == 0 || qtdemux->timescale == 0))
|
|
goto corrupt_file;
|
|
|
|
if ((tref = qtdemux_tree_get_child_by_type (trak, FOURCC_tref))) {
|
|
/* chapters track reference */
|
|
GNode *chap = qtdemux_tree_get_child_by_type (tref, FOURCC_chap);
|
|
if (chap) {
|
|
gsize length = GST_READ_UINT32_BE (chap->data);
|
|
if (qtdemux->chapters_track_id)
|
|
GST_FIXME_OBJECT (qtdemux, "Multiple CHAP tracks");
|
|
|
|
if (length >= 12) {
|
|
qtdemux->chapters_track_id =
|
|
GST_READ_UINT32_BE ((gint8 *) chap->data + 8);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* fragmented files may have bogus duration in moov */
|
|
if (!qtdemux->fragmented &&
|
|
qtdemux->duration != G_MAXINT64 && stream->duration != G_MAXINT32) {
|
|
guint64 tdur1, tdur2;
|
|
|
|
/* don't overflow */
|
|
tdur1 = stream->timescale * (guint64) qtdemux->duration;
|
|
tdur2 = qtdemux->timescale * (guint64) stream->duration;
|
|
|
|
/* HACK:
|
|
* some of those trailers, nowadays, have prologue images that are
|
|
* themselves video tracks as well. I haven't really found a way to
|
|
* identify those yet, except for just looking at their duration. */
|
|
if (tdur1 != 0 && (tdur2 * 10 / tdur1) < 2) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Track shorter than 20%% (%" G_GUINT64_FORMAT "/%" G_GUINT32_FORMAT
|
|
" vs. %" G_GUINT64_FORMAT "/%" G_GUINT32_FORMAT ") of the stream "
|
|
"found, assuming preview image or something; skipping track",
|
|
stream->duration, stream->timescale, qtdemux->duration,
|
|
qtdemux->timescale);
|
|
gst_qtdemux_stream_unref (stream);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
if (!(hdlr = qtdemux_tree_get_child_by_type (mdia, FOURCC_hdlr)))
|
|
goto corrupt_file;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "track type: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (QT_FOURCC ((guint8 *) hdlr->data + 12)));
|
|
|
|
len = QT_UINT32 ((guint8 *) hdlr->data);
|
|
if (len >= 20)
|
|
stream->subtype = QT_FOURCC ((guint8 *) hdlr->data + 16);
|
|
GST_LOG_OBJECT (qtdemux, "track subtype: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (stream->subtype));
|
|
|
|
if (!(minf = qtdemux_tree_get_child_by_type (mdia, FOURCC_minf)))
|
|
goto corrupt_file;
|
|
|
|
if (!(stbl = qtdemux_tree_get_child_by_type (minf, FOURCC_stbl)))
|
|
goto corrupt_file;
|
|
|
|
/* Parse out svmi (and later st3d/sv3d) atoms */
|
|
if (!qtdemux_parse_stereo_svmi_atom (qtdemux, stream, stbl))
|
|
goto corrupt_file;
|
|
|
|
/* parse rest of tkhd */
|
|
if (stream->subtype == FOURCC_vide) {
|
|
guint32 matrix[9];
|
|
|
|
/* version 1 uses some 64-bit ints */
|
|
if (!gst_byte_reader_skip (&tkhd, 20 + value_size))
|
|
goto corrupt_file;
|
|
|
|
if (!qtdemux_parse_transformation_matrix (qtdemux, &tkhd, matrix, "tkhd"))
|
|
goto corrupt_file;
|
|
|
|
if (!gst_byte_reader_get_uint32_be (&tkhd, &w)
|
|
|| !gst_byte_reader_get_uint32_be (&tkhd, &h))
|
|
goto corrupt_file;
|
|
|
|
qtdemux_inspect_transformation_matrix (qtdemux, stream, matrix,
|
|
&stream->stream_tags);
|
|
}
|
|
|
|
/* parse stsd */
|
|
if (!(stsd = qtdemux_tree_get_child_by_type (stbl, FOURCC_stsd)))
|
|
goto corrupt_file;
|
|
stsd_data = (const guint8 *) stsd->data;
|
|
|
|
/* stsd should at least have one entry */
|
|
stsd_len = QT_UINT32 (stsd_data);
|
|
if (stsd_len < 24) {
|
|
/* .. but skip stream with empty stsd produced by some Vivotek cameras */
|
|
if (stream->subtype == FOURCC_vivo) {
|
|
gst_qtdemux_stream_unref (stream);
|
|
return TRUE;
|
|
} else {
|
|
goto corrupt_file;
|
|
}
|
|
}
|
|
|
|
stream->stsd_entries_length = stsd_entry_count = QT_UINT32 (stsd_data + 12);
|
|
/* each stsd entry must contain at least 8 bytes */
|
|
if (stream->stsd_entries_length == 0
|
|
|| stream->stsd_entries_length > stsd_len / 8) {
|
|
stream->stsd_entries_length = 0;
|
|
goto corrupt_file;
|
|
}
|
|
stream->stsd_entries = g_new0 (QtDemuxStreamStsdEntry, stsd_entry_count);
|
|
GST_LOG_OBJECT (qtdemux, "stsd len: %d", stsd_len);
|
|
GST_LOG_OBJECT (qtdemux, "stsd entry count: %u", stsd_entry_count);
|
|
|
|
stsd_entry_data = stsd_data + 16;
|
|
remaining_stsd_len = stsd_len - 16;
|
|
for (stsd_index = 0; stsd_index < stsd_entry_count; stsd_index++) {
|
|
guint32 fourcc;
|
|
gchar *codec = NULL;
|
|
QtDemuxStreamStsdEntry *entry = &stream->stsd_entries[stsd_index];
|
|
|
|
/* and that entry should fit within stsd */
|
|
len = QT_UINT32 (stsd_entry_data);
|
|
if (len > remaining_stsd_len)
|
|
goto corrupt_file;
|
|
|
|
entry->fourcc = fourcc = QT_FOURCC (stsd_entry_data + 4);
|
|
GST_LOG_OBJECT (qtdemux, "stsd type: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (entry->fourcc));
|
|
GST_LOG_OBJECT (qtdemux, "stsd type len: %d", len);
|
|
|
|
if ((fourcc == FOURCC_drms) || (fourcc == FOURCC_drmi))
|
|
goto error_encrypted;
|
|
|
|
if (fourcc == FOURCC_aavd) {
|
|
if (stream->subtype != FOURCC_soun) {
|
|
GST_ERROR_OBJECT (qtdemux,
|
|
"Unexpeced stsd type 'aavd' outside 'soun' track");
|
|
} else {
|
|
/* encrypted audio with sound sample description v0 */
|
|
GNode *enc = qtdemux_tree_get_child_by_type (stsd, fourcc);
|
|
stream->protected = TRUE;
|
|
if (!qtdemux_parse_protection_aavd (qtdemux, stream, enc, &fourcc))
|
|
GST_ERROR_OBJECT (qtdemux, "Failed to parse protection scheme info");
|
|
}
|
|
}
|
|
|
|
if (fourcc == FOURCC_encv || fourcc == FOURCC_enca) {
|
|
/* FIXME this looks wrong, there might be multiple children
|
|
* with the same type */
|
|
GNode *enc = qtdemux_tree_get_child_by_type (stsd, fourcc);
|
|
stream->protected = TRUE;
|
|
if (!qtdemux_parse_protection_scheme_info (qtdemux, stream, enc, &fourcc))
|
|
GST_ERROR_OBJECT (qtdemux, "Failed to parse protection scheme info");
|
|
}
|
|
|
|
if (stream->subtype == FOURCC_vide) {
|
|
GNode *colr;
|
|
GNode *fiel;
|
|
GNode *pasp;
|
|
gboolean gray;
|
|
gint depth, palette_size, palette_count;
|
|
guint32 *palette_data = NULL;
|
|
|
|
entry->sampled = TRUE;
|
|
|
|
stream->display_width = w >> 16;
|
|
stream->display_height = h >> 16;
|
|
|
|
offset = 16;
|
|
if (len < 86) /* TODO verify */
|
|
goto corrupt_file;
|
|
|
|
entry->width = QT_UINT16 (stsd_entry_data + offset + 16);
|
|
entry->height = QT_UINT16 (stsd_entry_data + offset + 18);
|
|
entry->fps_n = 0; /* this is filled in later */
|
|
entry->fps_d = 0; /* this is filled in later */
|
|
entry->bits_per_sample = QT_UINT16 (stsd_entry_data + offset + 66);
|
|
entry->color_table_id = QT_UINT16 (stsd_entry_data + offset + 68);
|
|
|
|
/* if color_table_id is 0, ctab atom must follow; however some files
|
|
* produced by TMPEGEnc have color_table_id = 0 and no ctab atom, so
|
|
* if color table is not present we'll correct the value */
|
|
if (entry->color_table_id == 0 &&
|
|
(len < 90
|
|
|| QT_FOURCC (stsd_entry_data + offset + 70) != FOURCC_ctab)) {
|
|
entry->color_table_id = -1;
|
|
}
|
|
|
|
GST_LOG_OBJECT (qtdemux, "width %d, height %d, bps %d, color table id %d",
|
|
entry->width, entry->height, entry->bits_per_sample,
|
|
entry->color_table_id);
|
|
|
|
depth = entry->bits_per_sample;
|
|
|
|
/* more than 32 bits means grayscale */
|
|
gray = (depth > 32);
|
|
/* low 32 bits specify the depth */
|
|
depth &= 0x1F;
|
|
|
|
/* different number of palette entries is determined by depth. */
|
|
palette_count = 0;
|
|
if ((depth == 1) || (depth == 2) || (depth == 4) || (depth == 8))
|
|
palette_count = (1 << depth);
|
|
palette_size = palette_count * 4;
|
|
|
|
if (entry->color_table_id) {
|
|
switch (palette_count) {
|
|
case 0:
|
|
break;
|
|
case 2:
|
|
palette_data = g_memdup2 (ff_qt_default_palette_2, palette_size);
|
|
break;
|
|
case 4:
|
|
palette_data = g_memdup2 (ff_qt_default_palette_4, palette_size);
|
|
break;
|
|
case 16:
|
|
if (gray)
|
|
palette_data =
|
|
g_memdup2 (ff_qt_grayscale_palette_16, palette_size);
|
|
else
|
|
palette_data = g_memdup2 (ff_qt_default_palette_16, palette_size);
|
|
break;
|
|
case 256:
|
|
if (gray)
|
|
palette_data =
|
|
g_memdup2 (ff_qt_grayscale_palette_256, palette_size);
|
|
else
|
|
palette_data =
|
|
g_memdup2 (ff_qt_default_palette_256, palette_size);
|
|
break;
|
|
default:
|
|
GST_ELEMENT_WARNING (qtdemux, STREAM, DEMUX,
|
|
(_("The video in this file might not play correctly.")),
|
|
("unsupported palette depth %d", depth));
|
|
break;
|
|
}
|
|
} else {
|
|
guint i, j, start, end;
|
|
|
|
if (len < 94)
|
|
goto corrupt_file;
|
|
|
|
/* read table */
|
|
start = QT_UINT32 (stsd_entry_data + offset + 70);
|
|
palette_count = QT_UINT16 (stsd_entry_data + offset + 74);
|
|
end = QT_UINT16 (stsd_entry_data + offset + 76);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "start %d, end %d, palette_count %d",
|
|
start, end, palette_count);
|
|
|
|
if (end > 255)
|
|
end = 255;
|
|
if (start > end)
|
|
start = end;
|
|
|
|
if (len < 94 + (end - start) * 8)
|
|
goto corrupt_file;
|
|
|
|
/* palette is always the same size */
|
|
palette_data = g_malloc0 (256 * 4);
|
|
palette_size = 256 * 4;
|
|
|
|
for (j = 0, i = start; i <= end; j++, i++) {
|
|
guint32 a, r, g, b;
|
|
|
|
a = QT_UINT16 (stsd_entry_data + offset + 78 + (j * 8));
|
|
r = QT_UINT16 (stsd_entry_data + offset + 80 + (j * 8));
|
|
g = QT_UINT16 (stsd_entry_data + offset + 82 + (j * 8));
|
|
b = QT_UINT16 (stsd_entry_data + offset + 84 + (j * 8));
|
|
|
|
palette_data[i] = ((a & 0xff00) << 16) | ((r & 0xff00) << 8) |
|
|
(g & 0xff00) | (b >> 8);
|
|
}
|
|
}
|
|
|
|
if (entry->caps)
|
|
gst_caps_unref (entry->caps);
|
|
|
|
entry->caps =
|
|
qtdemux_video_caps (qtdemux, stream, entry, fourcc, stsd_entry_data,
|
|
&codec);
|
|
if (G_UNLIKELY (!entry->caps)) {
|
|
g_free (palette_data);
|
|
goto unknown_stream;
|
|
}
|
|
|
|
if (codec) {
|
|
gst_tag_list_add (stream->stream_tags, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_VIDEO_CODEC, codec, NULL);
|
|
g_free (codec);
|
|
codec = NULL;
|
|
}
|
|
|
|
if (palette_data) {
|
|
GstStructure *s;
|
|
|
|
if (entry->rgb8_palette)
|
|
gst_memory_unref (entry->rgb8_palette);
|
|
entry->rgb8_palette = gst_memory_new_wrapped (GST_MEMORY_FLAG_READONLY,
|
|
palette_data, palette_size, 0, palette_size, palette_data, g_free);
|
|
|
|
s = gst_caps_get_structure (entry->caps, 0);
|
|
|
|
/* non-raw video has a palette_data property. raw video has the palette as
|
|
* an extra plane that we append to the output buffers before we push
|
|
* them*/
|
|
if (!gst_structure_has_name (s, "video/x-raw")) {
|
|
GstBuffer *palette;
|
|
|
|
palette = gst_buffer_new ();
|
|
gst_buffer_append_memory (palette, entry->rgb8_palette);
|
|
entry->rgb8_palette = NULL;
|
|
|
|
gst_caps_set_simple (entry->caps, "palette_data",
|
|
GST_TYPE_BUFFER, palette, NULL);
|
|
gst_buffer_unref (palette);
|
|
}
|
|
} else if (palette_count != 0) {
|
|
GST_ELEMENT_WARNING (qtdemux, STREAM, NOT_IMPLEMENTED,
|
|
(NULL), ("Unsupported palette depth %d", depth));
|
|
}
|
|
|
|
GST_LOG_OBJECT (qtdemux, "frame count: %u",
|
|
QT_UINT16 (stsd_entry_data + offset + 32));
|
|
|
|
esds = NULL;
|
|
pasp = NULL;
|
|
colr = NULL;
|
|
fiel = NULL;
|
|
/* pick 'the' stsd child */
|
|
mp4v = qtdemux_tree_get_child_by_index (stsd, stsd_index);
|
|
// We should skip parsing the stsd for non-protected streams if
|
|
// the entry doesn't match the fourcc, since they don't change
|
|
// format. However, for protected streams we can have partial
|
|
// encryption, where parts of the stream are encrypted and parts
|
|
// not. For both parts of such streams, we should ensure the
|
|
// esds overrides are parsed for both from the stsd.
|
|
if (QTDEMUX_TREE_NODE_FOURCC (mp4v) != fourcc) {
|
|
if (stream->protected && QTDEMUX_TREE_NODE_FOURCC (mp4v) != FOURCC_encv)
|
|
mp4v = NULL;
|
|
else if (!stream->protected)
|
|
mp4v = NULL;
|
|
}
|
|
|
|
if (mp4v) {
|
|
esds = qtdemux_tree_get_child_by_type (mp4v, FOURCC_esds);
|
|
pasp = qtdemux_tree_get_child_by_type (mp4v, FOURCC_pasp);
|
|
colr = qtdemux_tree_get_child_by_type (mp4v, FOURCC_colr);
|
|
fiel = qtdemux_tree_get_child_by_type (mp4v, FOURCC_fiel);
|
|
}
|
|
|
|
if (pasp) {
|
|
const guint8 *pasp_data = (const guint8 *) pasp->data;
|
|
guint len = QT_UINT32 (pasp_data);
|
|
|
|
if (len == 16) {
|
|
CUR_STREAM (stream)->par_w = QT_UINT32 (pasp_data + 8);
|
|
CUR_STREAM (stream)->par_h = QT_UINT32 (pasp_data + 12);
|
|
} else {
|
|
CUR_STREAM (stream)->par_w = 0;
|
|
CUR_STREAM (stream)->par_h = 0;
|
|
}
|
|
} else {
|
|
CUR_STREAM (stream)->par_w = 0;
|
|
CUR_STREAM (stream)->par_h = 0;
|
|
}
|
|
|
|
if (fiel) {
|
|
const guint8 *fiel_data = (const guint8 *) fiel->data;
|
|
guint len = QT_UINT32 (fiel_data);
|
|
|
|
if (len == 10) {
|
|
CUR_STREAM (stream)->interlace_mode = GST_READ_UINT8 (fiel_data + 8);
|
|
CUR_STREAM (stream)->field_order = GST_READ_UINT8 (fiel_data + 9);
|
|
}
|
|
}
|
|
|
|
if (colr) {
|
|
const guint8 *colr_data = (const guint8 *) colr->data;
|
|
guint len = QT_UINT32 (colr_data);
|
|
|
|
if (len == 19 || len == 18) {
|
|
guint32 color_type = GST_READ_UINT32_LE (colr_data + 8);
|
|
|
|
if (color_type == FOURCC_nclx || color_type == FOURCC_nclc) {
|
|
guint16 primaries = GST_READ_UINT16_BE (colr_data + 12);
|
|
guint16 transfer_function = GST_READ_UINT16_BE (colr_data + 14);
|
|
guint16 matrix = GST_READ_UINT16_BE (colr_data + 16);
|
|
gboolean full_range = len == 19 ? colr_data[17] >> 7 : FALSE;
|
|
|
|
CUR_STREAM (stream)->colorimetry.primaries =
|
|
gst_video_color_primaries_from_iso (primaries);
|
|
CUR_STREAM (stream)->colorimetry.transfer =
|
|
gst_video_transfer_function_from_iso (transfer_function);
|
|
CUR_STREAM (stream)->colorimetry.matrix =
|
|
gst_video_color_matrix_from_iso (matrix);
|
|
CUR_STREAM (stream)->colorimetry.range =
|
|
full_range ? GST_VIDEO_COLOR_RANGE_0_255 :
|
|
GST_VIDEO_COLOR_RANGE_16_235;
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "Unsupported color type");
|
|
}
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "Invalid colr atom size");
|
|
}
|
|
}
|
|
|
|
if (esds) {
|
|
gst_qtdemux_handle_esds (qtdemux, stream, entry, esds,
|
|
stream->stream_tags);
|
|
} else {
|
|
switch (fourcc) {
|
|
case FOURCC_H264:
|
|
case FOURCC_avc1:
|
|
case FOURCC_avc3:
|
|
{
|
|
guint len = QT_UINT32 (stsd_entry_data);
|
|
len = len <= 0x56 ? 0 : len - 0x56;
|
|
const guint8 *avc_data = stsd_entry_data + 0x56;
|
|
|
|
/* find avcC */
|
|
while (len >= 0x8) {
|
|
guint size;
|
|
|
|
if (QT_UINT32 (avc_data) <= 0x8)
|
|
size = 0;
|
|
else if (QT_UINT32 (avc_data) <= len)
|
|
size = QT_UINT32 (avc_data) - 0x8;
|
|
else
|
|
size = len - 0x8;
|
|
|
|
if (size < 1)
|
|
/* No real data, so break out */
|
|
break;
|
|
|
|
switch (QT_FOURCC (avc_data + 0x4)) {
|
|
case FOURCC_avcC:
|
|
{
|
|
/* parse, if found */
|
|
GstBuffer *buf;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found avcC codec_data in stsd");
|
|
|
|
/* First 4 bytes are the length of the atom, the next 4 bytes
|
|
* are the fourcc, the next 1 byte is the version, and the
|
|
* subsequent bytes are profile_tier_level structure like data. */
|
|
gst_codec_utils_h264_caps_set_level_and_profile (entry->caps,
|
|
avc_data + 8 + 1, size - 1);
|
|
buf = gst_buffer_new_and_alloc (size);
|
|
gst_buffer_fill (buf, 0, avc_data + 0x8, size);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
|
|
break;
|
|
}
|
|
case FOURCC_strf:
|
|
{
|
|
GstBuffer *buf;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found strf codec_data in stsd");
|
|
|
|
/* First 4 bytes are the length of the atom, the next 4 bytes
|
|
* are the fourcc, next 40 bytes are BITMAPINFOHEADER,
|
|
* next 1 byte is the version, and the
|
|
* subsequent bytes are sequence parameter set like data. */
|
|
|
|
size -= 40; /* we'll be skipping BITMAPINFOHEADER */
|
|
if (size > 1) {
|
|
gst_codec_utils_h264_caps_set_level_and_profile
|
|
(entry->caps, avc_data + 8 + 40 + 1, size - 1);
|
|
|
|
buf = gst_buffer_new_and_alloc (size);
|
|
gst_buffer_fill (buf, 0, avc_data + 8 + 40, size);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_btrt:
|
|
{
|
|
guint avg_bitrate, max_bitrate;
|
|
|
|
/* bufferSizeDB, maxBitrate and avgBitrate - 4 bytes each */
|
|
if (size < 12)
|
|
break;
|
|
|
|
max_bitrate = QT_UINT32 (avc_data + 0xc);
|
|
avg_bitrate = QT_UINT32 (avc_data + 0x10);
|
|
|
|
if (!max_bitrate && !avg_bitrate)
|
|
break;
|
|
|
|
/* Some muxers seem to swap the average and maximum bitrates
|
|
* (I'm looking at you, YouTube), so we swap for sanity. */
|
|
if (max_bitrate > 0 && max_bitrate < avg_bitrate) {
|
|
guint temp = avg_bitrate;
|
|
|
|
avg_bitrate = max_bitrate;
|
|
max_bitrate = temp;
|
|
}
|
|
|
|
if (max_bitrate > 0 && max_bitrate < G_MAXUINT32) {
|
|
gst_tag_list_add (stream->stream_tags,
|
|
GST_TAG_MERGE_REPLACE, GST_TAG_MAXIMUM_BITRATE,
|
|
max_bitrate, NULL);
|
|
}
|
|
if (avg_bitrate > 0 && avg_bitrate < G_MAXUINT32) {
|
|
gst_tag_list_add (stream->stream_tags,
|
|
GST_TAG_MERGE_REPLACE, GST_TAG_BITRATE, avg_bitrate,
|
|
NULL);
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
len -= size + 8;
|
|
avc_data += size + 8;
|
|
}
|
|
|
|
break;
|
|
}
|
|
case FOURCC_H265:
|
|
case FOURCC_hvc1:
|
|
case FOURCC_hev1:
|
|
case FOURCC_dvh1:
|
|
case FOURCC_dvhe:
|
|
{
|
|
guint len = QT_UINT32 (stsd_entry_data);
|
|
len = len <= 0x56 ? 0 : len - 0x56;
|
|
const guint8 *hevc_data = stsd_entry_data + 0x56;
|
|
|
|
/* find hevc */
|
|
while (len >= 0x8) {
|
|
guint size;
|
|
|
|
if (QT_UINT32 (hevc_data) <= 0x8)
|
|
size = 0;
|
|
else if (QT_UINT32 (hevc_data) <= len)
|
|
size = QT_UINT32 (hevc_data) - 0x8;
|
|
else
|
|
size = len - 0x8;
|
|
|
|
if (size < 1)
|
|
/* No real data, so break out */
|
|
break;
|
|
|
|
switch (QT_FOURCC (hevc_data + 0x4)) {
|
|
case FOURCC_hvcC:
|
|
{
|
|
/* parse, if found */
|
|
GstBuffer *buf;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found hvcC codec_data in stsd");
|
|
|
|
/* First 4 bytes are the length of the atom, the next 4 bytes
|
|
* are the fourcc, the next 1 byte is the version, and the
|
|
* subsequent bytes are sequence parameter set like data. */
|
|
gst_codec_utils_h265_caps_set_level_tier_and_profile
|
|
(entry->caps, hevc_data + 8 + 1, size - 1);
|
|
|
|
buf = gst_buffer_new_and_alloc (size);
|
|
gst_buffer_fill (buf, 0, hevc_data + 0x8, size);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
len -= size + 8;
|
|
hevc_data += size + 8;
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_mp4v:
|
|
case FOURCC_MP4V:
|
|
case FOURCC_fmp4:
|
|
case FOURCC_FMP4:
|
|
case FOURCC_xvid:
|
|
case FOURCC_XVID:
|
|
{
|
|
GNode *glbl;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
|
|
/* codec data might be in glbl extension atom */
|
|
glbl = mp4v ?
|
|
qtdemux_tree_get_child_by_type (mp4v, FOURCC_glbl) : NULL;
|
|
if (glbl) {
|
|
guint8 *data;
|
|
GstBuffer *buf;
|
|
guint len;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found glbl data in stsd");
|
|
data = glbl->data;
|
|
len = QT_UINT32 (data);
|
|
if (len > 0x8) {
|
|
len -= 0x8;
|
|
buf = gst_buffer_new_and_alloc (len);
|
|
gst_buffer_fill (buf, 0, data + 8, len);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_mjp2:
|
|
{
|
|
/* see annex I of the jpeg2000 spec */
|
|
GNode *jp2h, *ihdr, *colr, *mjp2, *field, *prefix, *cmap, *cdef;
|
|
const guint8 *data;
|
|
const gchar *colorspace = NULL;
|
|
gint ncomp = 0;
|
|
guint32 ncomp_map = 0;
|
|
gint32 *comp_map = NULL;
|
|
guint32 nchan_def = 0;
|
|
gint32 *chan_def = NULL;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found mjp2");
|
|
/* some required atoms */
|
|
mjp2 = qtdemux_tree_get_child_by_index (stsd, stsd_index);
|
|
if (!mjp2)
|
|
break;
|
|
jp2h = qtdemux_tree_get_child_by_type (mjp2, FOURCC_jp2h);
|
|
if (!jp2h)
|
|
break;
|
|
|
|
/* number of components; redundant with info in codestream, but useful
|
|
to a muxer */
|
|
ihdr = qtdemux_tree_get_child_by_type (jp2h, FOURCC_ihdr);
|
|
if (!ihdr || QT_UINT32 (ihdr->data) != 22)
|
|
break;
|
|
ncomp = QT_UINT16 (((guint8 *) ihdr->data) + 16);
|
|
|
|
colr = qtdemux_tree_get_child_by_type (jp2h, FOURCC_colr);
|
|
if (!colr)
|
|
break;
|
|
GST_DEBUG_OBJECT (qtdemux, "found colr");
|
|
/* extract colour space info */
|
|
if (QT_UINT8 ((guint8 *) colr->data + 8) == 1) {
|
|
switch (QT_UINT32 ((guint8 *) colr->data + 11)) {
|
|
case 16:
|
|
colorspace = "sRGB";
|
|
break;
|
|
case 17:
|
|
colorspace = "GRAY";
|
|
break;
|
|
case 18:
|
|
colorspace = "sYUV";
|
|
break;
|
|
default:
|
|
colorspace = NULL;
|
|
break;
|
|
}
|
|
}
|
|
if (!colorspace)
|
|
/* colr is required, and only values 16, 17, and 18 are specified,
|
|
so error if we have no colorspace */
|
|
break;
|
|
|
|
/* extract component mapping */
|
|
cmap = qtdemux_tree_get_child_by_type (jp2h, FOURCC_cmap);
|
|
if (cmap) {
|
|
guint32 cmap_len = 0;
|
|
int i;
|
|
cmap_len = QT_UINT32 (cmap->data);
|
|
if (cmap_len >= 8) {
|
|
/* normal box, subtract off header */
|
|
cmap_len -= 8;
|
|
/* cmap: { u16 cmp; u8 mtyp; u8 pcol; }* */
|
|
if (cmap_len % 4 == 0) {
|
|
ncomp_map = (cmap_len / 4);
|
|
comp_map = g_new0 (gint32, ncomp_map);
|
|
for (i = 0; i < ncomp_map; i++) {
|
|
guint16 cmp;
|
|
guint8 mtyp, pcol;
|
|
cmp = QT_UINT16 (((guint8 *) cmap->data) + 8 + i * 4);
|
|
mtyp = QT_UINT8 (((guint8 *) cmap->data) + 8 + i * 4 + 2);
|
|
pcol = QT_UINT8 (((guint8 *) cmap->data) + 8 + i * 4 + 3);
|
|
comp_map[i] = (mtyp << 24) | (pcol << 16) | cmp;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
/* extract channel definitions */
|
|
cdef = qtdemux_tree_get_child_by_type (jp2h, FOURCC_cdef);
|
|
if (cdef) {
|
|
guint32 cdef_len = 0;
|
|
int i;
|
|
cdef_len = QT_UINT32 (cdef->data);
|
|
if (cdef_len >= 10) {
|
|
/* normal box, subtract off header and len */
|
|
cdef_len -= 10;
|
|
/* cdef: u16 n; { u16 cn; u16 typ; u16 asoc; }* */
|
|
if (cdef_len % 6 == 0) {
|
|
nchan_def = (cdef_len / 6);
|
|
chan_def = g_new0 (gint32, nchan_def);
|
|
for (i = 0; i < nchan_def; i++)
|
|
chan_def[i] = -1;
|
|
for (i = 0; i < nchan_def; i++) {
|
|
guint16 cn, typ, asoc;
|
|
cn = QT_UINT16 (((guint8 *) cdef->data) + 10 + i * 6);
|
|
typ = QT_UINT16 (((guint8 *) cdef->data) + 10 + i * 6 + 2);
|
|
asoc = QT_UINT16 (((guint8 *) cdef->data) + 10 + i * 6 + 4);
|
|
if (cn < nchan_def) {
|
|
switch (typ) {
|
|
case 0:
|
|
chan_def[cn] = asoc;
|
|
break;
|
|
case 1:
|
|
chan_def[cn] = 0; /* alpha */
|
|
break;
|
|
default:
|
|
chan_def[cn] = -typ;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
gst_caps_set_simple (entry->caps,
|
|
"num-components", G_TYPE_INT, ncomp, NULL);
|
|
gst_caps_set_simple (entry->caps,
|
|
"colorspace", G_TYPE_STRING, colorspace, NULL);
|
|
|
|
if (comp_map) {
|
|
GValue arr = { 0, };
|
|
GValue elt = { 0, };
|
|
int i;
|
|
g_value_init (&arr, GST_TYPE_ARRAY);
|
|
g_value_init (&elt, G_TYPE_INT);
|
|
for (i = 0; i < ncomp_map; i++) {
|
|
g_value_set_int (&elt, comp_map[i]);
|
|
gst_value_array_append_value (&arr, &elt);
|
|
}
|
|
gst_structure_set_value (gst_caps_get_structure (entry->caps, 0),
|
|
"component-map", &arr);
|
|
g_value_unset (&elt);
|
|
g_value_unset (&arr);
|
|
g_free (comp_map);
|
|
}
|
|
|
|
if (chan_def) {
|
|
GValue arr = { 0, };
|
|
GValue elt = { 0, };
|
|
int i;
|
|
g_value_init (&arr, GST_TYPE_ARRAY);
|
|
g_value_init (&elt, G_TYPE_INT);
|
|
for (i = 0; i < nchan_def; i++) {
|
|
g_value_set_int (&elt, chan_def[i]);
|
|
gst_value_array_append_value (&arr, &elt);
|
|
}
|
|
gst_structure_set_value (gst_caps_get_structure (entry->caps, 0),
|
|
"channel-definitions", &arr);
|
|
g_value_unset (&elt);
|
|
g_value_unset (&arr);
|
|
g_free (chan_def);
|
|
}
|
|
|
|
/* some optional atoms */
|
|
field = qtdemux_tree_get_child_by_type (mjp2, FOURCC_fiel);
|
|
prefix = qtdemux_tree_get_child_by_type (mjp2, FOURCC_jp2x);
|
|
|
|
/* indicate possible fields in caps */
|
|
if (field) {
|
|
data = (guint8 *) field->data + 8;
|
|
if (*data != 1)
|
|
gst_caps_set_simple (entry->caps, "fields", G_TYPE_INT,
|
|
(gint) * data, NULL);
|
|
}
|
|
/* add codec_data if provided */
|
|
if (prefix) {
|
|
GstBuffer *buf;
|
|
guint len;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found prefix data in stsd");
|
|
data = prefix->data;
|
|
len = QT_UINT32 (data);
|
|
if (len > 0x8) {
|
|
len -= 0x8;
|
|
buf = gst_buffer_new_and_alloc (len);
|
|
gst_buffer_fill (buf, 0, data + 8, len);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_SVQ3:
|
|
case FOURCC_VP31:
|
|
{
|
|
GstBuffer *buf;
|
|
GstBuffer *seqh = NULL;
|
|
const guint8 *gamma_data = NULL;
|
|
guint len = QT_UINT32 (stsd_data); /* FIXME review - why put the whole stsd in codec data? */
|
|
|
|
qtdemux_parse_svq3_stsd_data (qtdemux, stsd_entry_data, &gamma_data,
|
|
&seqh);
|
|
if (gamma_data) {
|
|
gst_caps_set_simple (entry->caps, "applied-gamma", G_TYPE_DOUBLE,
|
|
QT_FP32 (gamma_data), NULL);
|
|
}
|
|
if (seqh) {
|
|
/* sorry for the bad name, but we don't know what this is, other
|
|
* than its own fourcc */
|
|
gst_caps_set_simple (entry->caps, "seqh", GST_TYPE_BUFFER, seqh,
|
|
NULL);
|
|
gst_buffer_unref (seqh);
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found codec_data in stsd");
|
|
buf = gst_buffer_new_and_alloc (len);
|
|
gst_buffer_fill (buf, 0, stsd_data, len);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
break;
|
|
}
|
|
case FOURCC_jpeg:
|
|
{
|
|
/* https://developer.apple.com/standards/qtff-2001.pdf,
|
|
* page 92, "Video Sample Description", under table 3.1 */
|
|
GstByteReader br;
|
|
|
|
const gint compressor_offset =
|
|
16 + 4 + 4 * 3 + 2 * 2 + 2 * 4 + 4 + 2;
|
|
const gint min_size = compressor_offset + 32 + 2 + 2;
|
|
GNode *jpeg;
|
|
guint32 len;
|
|
guint16 color_table_id = 0;
|
|
gboolean ok;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found jpeg");
|
|
|
|
/* recover information on interlaced/progressive */
|
|
jpeg = qtdemux_tree_get_child_by_type (stsd, FOURCC_jpeg);
|
|
if (!jpeg)
|
|
break;
|
|
|
|
len = QT_UINT32 (jpeg->data);
|
|
GST_DEBUG_OBJECT (qtdemux, "Found jpeg: len %u, need %d", len,
|
|
min_size);
|
|
if (len >= min_size) {
|
|
gst_byte_reader_init (&br, jpeg->data, len);
|
|
|
|
gst_byte_reader_skip (&br, compressor_offset + 32 + 2);
|
|
gst_byte_reader_get_uint16_le (&br, &color_table_id);
|
|
if (color_table_id != 0) {
|
|
/* the spec says there can be concatenated chunks in the data, and we want
|
|
* to find one called field. Walk through them. */
|
|
gint offset = min_size;
|
|
while (offset + 8 < len) {
|
|
guint32 size = 0, tag;
|
|
ok = gst_byte_reader_get_uint32_le (&br, &size);
|
|
ok &= gst_byte_reader_get_uint32_le (&br, &tag);
|
|
if (!ok || size < 8) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Failed to walk optional chunk list");
|
|
break;
|
|
}
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Found optional %4.4s chunk, size %u",
|
|
(const char *) &tag, size);
|
|
if (tag == FOURCC_fiel) {
|
|
guint8 n_fields = 0, ordering = 0;
|
|
gst_byte_reader_get_uint8 (&br, &n_fields);
|
|
gst_byte_reader_get_uint8 (&br, &ordering);
|
|
if (n_fields == 1 || n_fields == 2) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Found fiel tag with %u fields, ordering %u",
|
|
n_fields, ordering);
|
|
if (n_fields == 2)
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps,
|
|
"interlace-mode", G_TYPE_STRING, "interleaved",
|
|
NULL);
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Found fiel tag with invalid fields (%u)", n_fields);
|
|
}
|
|
}
|
|
offset += size;
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Color table ID is 0, not trying to get interlacedness");
|
|
}
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Length of jpeg chunk is too small, not trying to get interlacedness");
|
|
}
|
|
|
|
break;
|
|
}
|
|
case FOURCC_rle_:
|
|
case FOURCC_WRLE:
|
|
{
|
|
gst_caps_set_simple (entry->caps,
|
|
"depth", G_TYPE_INT, QT_UINT16 (stsd_entry_data + offset + 66),
|
|
NULL);
|
|
break;
|
|
}
|
|
case FOURCC_XiTh:
|
|
{
|
|
GNode *xith, *xdxt;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found XiTh");
|
|
xith = qtdemux_tree_get_child_by_index (stsd, stsd_index);
|
|
if (!xith)
|
|
break;
|
|
|
|
xdxt = qtdemux_tree_get_child_by_type (xith, FOURCC_XdxT);
|
|
if (!xdxt)
|
|
break;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found XdxT node");
|
|
/* collect the headers and store them in a stream list so that we can
|
|
* send them out first */
|
|
qtdemux_parse_theora_extension (qtdemux, stream, xdxt);
|
|
break;
|
|
}
|
|
case FOURCC_ovc1:
|
|
{
|
|
GNode *ovc1;
|
|
guint8 *ovc1_data;
|
|
guint ovc1_len;
|
|
GstBuffer *buf;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "parse ovc1 header");
|
|
ovc1 = qtdemux_tree_get_child_by_index (stsd, stsd_index);
|
|
if (!ovc1)
|
|
break;
|
|
ovc1_data = ovc1->data;
|
|
ovc1_len = QT_UINT32 (ovc1_data);
|
|
if (ovc1_len <= 198) {
|
|
GST_WARNING_OBJECT (qtdemux, "Too small ovc1 header, skipping");
|
|
break;
|
|
}
|
|
buf = gst_buffer_new_and_alloc (ovc1_len - 198);
|
|
gst_buffer_fill (buf, 0, ovc1_data + 198, ovc1_len - 198);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
break;
|
|
}
|
|
case FOURCC_vc_1:
|
|
{
|
|
guint len = QT_UINT32 (stsd_entry_data);
|
|
len = len <= 0x56 ? 0 : len - 0x56;
|
|
const guint8 *vc1_data = stsd_entry_data + 0x56;
|
|
|
|
/* find dvc1 */
|
|
while (len >= 8) {
|
|
guint size;
|
|
|
|
if (QT_UINT32 (vc1_data) <= 8)
|
|
size = 0;
|
|
else if (QT_UINT32 (vc1_data) <= len)
|
|
size = QT_UINT32 (vc1_data) - 8;
|
|
else
|
|
size = len - 8;
|
|
|
|
if (size < 1)
|
|
/* No real data, so break out */
|
|
break;
|
|
|
|
switch (QT_FOURCC (vc1_data + 0x4)) {
|
|
case GST_MAKE_FOURCC ('d', 'v', 'c', '1'):
|
|
{
|
|
GstBuffer *buf;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found dvc1 codec_data in stsd");
|
|
buf = gst_buffer_new_and_alloc (size);
|
|
gst_buffer_fill (buf, 0, vc1_data + 8, size);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
len -= size + 8;
|
|
vc1_data += size + 8;
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_av01:
|
|
{
|
|
guint len = QT_UINT32 (stsd_entry_data);
|
|
len = len <= 0x56 ? 0 : len - 0x56;
|
|
const guint8 *av1_data = stsd_entry_data + 0x56;
|
|
|
|
/* find av1C */
|
|
while (len >= 0x8) {
|
|
guint size;
|
|
|
|
if (QT_UINT32 (av1_data) <= 0x8)
|
|
size = 0;
|
|
else if (QT_UINT32 (av1_data) <= len)
|
|
size = QT_UINT32 (av1_data) - 0x8;
|
|
else
|
|
size = len - 0x8;
|
|
|
|
if (size < 1)
|
|
/* No real data, so break out */
|
|
break;
|
|
|
|
switch (QT_FOURCC (av1_data + 0x4)) {
|
|
case FOURCC_av1C:
|
|
{
|
|
/* parse, if found */
|
|
GstBuffer *buf;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"found av1C codec_data in stsd of size %d", size);
|
|
|
|
/* not enough data, just ignore and hope for the best */
|
|
if (size < 4)
|
|
break;
|
|
|
|
/* Content is:
|
|
* 4 bytes: atom length
|
|
* 4 bytes: fourcc
|
|
*
|
|
* version 1 (marker=1):
|
|
*
|
|
* unsigned int (1) marker = 1;
|
|
* unsigned int (7) version = 1;
|
|
* unsigned int (3) seq_profile;
|
|
* unsigned int (5) seq_level_idx_0;
|
|
* unsigned int (1) seq_tier_0;
|
|
* unsigned int (1) high_bitdepth;
|
|
* unsigned int (1) twelve_bit;
|
|
* unsigned int (1) monochrome;
|
|
* unsigned int (1) chroma_subsampling_x;
|
|
* unsigned int (1) chroma_subsampling_y;
|
|
* unsigned int (2) chroma_sample_position;
|
|
* unsigned int (3) reserved = 0;
|
|
*
|
|
* unsigned int (1) initial_presentation_delay_present;
|
|
* if (initial_presentation_delay_present) {
|
|
* unsigned int (4) initial_presentation_delay_minus_one;
|
|
* } else {
|
|
* unsigned int (4) reserved = 0;
|
|
* }
|
|
*
|
|
* unsigned int (8) configOBUs[];
|
|
*
|
|
* rest: OBUs.
|
|
*/
|
|
|
|
switch (av1_data[8]) {
|
|
case 0x81:{
|
|
guint8 pres_delay_field;
|
|
|
|
/* We let profile and the other parts be figured out by
|
|
* av1parse and only include the presentation delay here
|
|
* if present */
|
|
/* We skip initial_presentation_delay* for now */
|
|
pres_delay_field = *(av1_data + 11);
|
|
if (pres_delay_field & (1 << 5)) {
|
|
gst_caps_set_simple (entry->caps,
|
|
"presentation-delay", G_TYPE_INT,
|
|
(gint) (pres_delay_field & 0x0F) + 1, NULL);
|
|
}
|
|
|
|
buf = gst_buffer_new_and_alloc (size);
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_HEADER);
|
|
gst_buffer_fill (buf, 0, av1_data + 8, size);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
break;
|
|
}
|
|
default:
|
|
GST_WARNING ("Unknown version 0x%02x of av1C box",
|
|
av1_data[8]);
|
|
break;
|
|
}
|
|
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
len -= size + 8;
|
|
av1_data += size + 8;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
/* TODO: Need to parse vpcC for VP8 codec too.
|
|
* Note that VPCodecConfigurationBox (vpcC) is defined for
|
|
* vp08, vp09, and vp10 fourcc. */
|
|
case FOURCC_vp09:
|
|
{
|
|
guint len = QT_UINT32 (stsd_entry_data);
|
|
len = len <= 0x56 ? 0 : len - 0x56;
|
|
const guint8 *vpcc_data = stsd_entry_data + 0x56;
|
|
|
|
/* find vpcC */
|
|
while (len >= 0x8) {
|
|
guint size;
|
|
|
|
if (QT_UINT32 (vpcc_data) <= 0x8)
|
|
size = 0;
|
|
else if (QT_UINT32 (vpcc_data) <= len)
|
|
size = QT_UINT32 (vpcc_data) - 0x8;
|
|
else
|
|
size = len - 0x8;
|
|
|
|
if (size < 1)
|
|
/* No real data, so break out */
|
|
break;
|
|
|
|
switch (QT_FOURCC (vpcc_data + 0x4)) {
|
|
case FOURCC_vpcC:
|
|
{
|
|
const gchar *profile_str = NULL;
|
|
const gchar *chroma_format_str = NULL;
|
|
guint8 profile;
|
|
guint8 bitdepth;
|
|
guint8 chroma_format;
|
|
GstVideoColorimetry cinfo;
|
|
|
|
/* parse, if found */
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"found vp codec_data in stsd of size %d", size);
|
|
|
|
/* the meaning of "size" is length of the atom body, excluding
|
|
* atom length and fourcc fields */
|
|
if (size < 12)
|
|
break;
|
|
|
|
/* Content is:
|
|
* 4 bytes: atom length
|
|
* 4 bytes: fourcc
|
|
* 1 byte: version
|
|
* 3 bytes: flags
|
|
* 1 byte: profile
|
|
* 1 byte: level
|
|
* 4 bits: bitDepth
|
|
* 3 bits: chromaSubsampling
|
|
* 1 bit: videoFullRangeFlag
|
|
* 1 byte: colourPrimaries
|
|
* 1 byte: transferCharacteristics
|
|
* 1 byte: matrixCoefficients
|
|
* 2 bytes: codecIntializationDataSize (should be zero for vp8 and vp9)
|
|
* rest: codecIntializationData (not used for vp8 and vp9)
|
|
*/
|
|
|
|
if (vpcc_data[8] != 1) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"unknown vpcC version %d", vpcc_data[8]);
|
|
break;
|
|
}
|
|
|
|
profile = vpcc_data[12];
|
|
switch (profile) {
|
|
case 0:
|
|
profile_str = "0";
|
|
break;
|
|
case 1:
|
|
profile_str = "1";
|
|
break;
|
|
case 2:
|
|
profile_str = "2";
|
|
break;
|
|
case 3:
|
|
profile_str = "3";
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (profile_str) {
|
|
gst_caps_set_simple (entry->caps,
|
|
"profile", G_TYPE_STRING, profile_str, NULL);
|
|
}
|
|
|
|
/* skip level, the VP9 spec v0.6 defines only one level atm,
|
|
* but webm spec define various ones. Add level to caps
|
|
* if we really need it then */
|
|
|
|
bitdepth = (vpcc_data[14] & 0xf0) >> 4;
|
|
if (bitdepth == 8 || bitdepth == 10 || bitdepth == 12) {
|
|
gst_caps_set_simple (entry->caps,
|
|
"bit-depth-luma", G_TYPE_UINT, bitdepth,
|
|
"bit-depth-chroma", G_TYPE_UINT, bitdepth, NULL);
|
|
}
|
|
|
|
chroma_format = (vpcc_data[14] & 0xe) >> 1;
|
|
switch (chroma_format) {
|
|
case 0:
|
|
case 1:
|
|
chroma_format_str = "4:2:0";
|
|
break;
|
|
case 2:
|
|
chroma_format_str = "4:2:2";
|
|
break;
|
|
case 3:
|
|
chroma_format_str = "4:4:4";
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (chroma_format_str) {
|
|
gst_caps_set_simple (entry->caps,
|
|
"chroma-format", G_TYPE_STRING, chroma_format_str,
|
|
NULL);
|
|
}
|
|
|
|
if ((vpcc_data[14] & 0x1) != 0)
|
|
cinfo.range = GST_VIDEO_COLOR_RANGE_0_255;
|
|
else
|
|
cinfo.range = GST_VIDEO_COLOR_RANGE_16_235;
|
|
cinfo.primaries =
|
|
gst_video_color_primaries_from_iso (vpcc_data[15]);
|
|
cinfo.transfer =
|
|
gst_video_transfer_function_from_iso (vpcc_data[16]);
|
|
cinfo.matrix =
|
|
gst_video_color_matrix_from_iso (vpcc_data[17]);
|
|
|
|
if (cinfo.primaries != GST_VIDEO_COLOR_PRIMARIES_UNKNOWN &&
|
|
cinfo.transfer != GST_VIDEO_TRANSFER_UNKNOWN &&
|
|
cinfo.matrix != GST_VIDEO_COLOR_MATRIX_UNKNOWN) {
|
|
/* set this only if all values are known, otherwise this
|
|
* might overwrite valid ones parsed from other color box */
|
|
CUR_STREAM (stream)->colorimetry = cinfo;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
len -= size + 8;
|
|
vpcc_data += size + 8;
|
|
}
|
|
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
GST_INFO_OBJECT (qtdemux,
|
|
"type %" GST_FOURCC_FORMAT " caps %" GST_PTR_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc), entry->caps);
|
|
|
|
} else if (stream->subtype == FOURCC_soun) {
|
|
GNode *wave;
|
|
guint version, samplesize;
|
|
guint16 compression_id;
|
|
gboolean amrwb = FALSE;
|
|
|
|
offset = 16;
|
|
/* sample description entry (16) + sound sample description v0 (20) */
|
|
if (len < 36)
|
|
goto corrupt_file;
|
|
|
|
version = QT_UINT32 (stsd_entry_data + offset);
|
|
entry->n_channels = QT_UINT16 (stsd_entry_data + offset + 8);
|
|
samplesize = QT_UINT16 (stsd_entry_data + offset + 10);
|
|
compression_id = QT_UINT16 (stsd_entry_data + offset + 12);
|
|
entry->rate = QT_FP32 (stsd_entry_data + offset + 16);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "version/rev: %08x", version);
|
|
GST_LOG_OBJECT (qtdemux, "vendor: %08x",
|
|
QT_UINT32 (stsd_entry_data + offset + 4));
|
|
GST_LOG_OBJECT (qtdemux, "n_channels: %d", entry->n_channels);
|
|
GST_LOG_OBJECT (qtdemux, "sample_size: %d", samplesize);
|
|
GST_LOG_OBJECT (qtdemux, "compression_id: %d", compression_id);
|
|
GST_LOG_OBJECT (qtdemux, "packet size: %d",
|
|
QT_UINT16 (stsd_entry_data + offset + 14));
|
|
GST_LOG_OBJECT (qtdemux, "sample rate: %g", entry->rate);
|
|
|
|
if (compression_id == 0xfffe)
|
|
entry->sampled = TRUE;
|
|
|
|
/* first assume uncompressed audio */
|
|
entry->bytes_per_sample = samplesize / 8;
|
|
entry->samples_per_frame = entry->n_channels;
|
|
entry->bytes_per_frame = entry->n_channels * entry->bytes_per_sample;
|
|
entry->samples_per_packet = entry->samples_per_frame;
|
|
entry->bytes_per_packet = entry->bytes_per_sample;
|
|
|
|
offset = 36;
|
|
|
|
if (version == 0x00010000) {
|
|
/* sample description entry (16) + sound sample description v1 (20+16) */
|
|
if (len < 52)
|
|
goto corrupt_file;
|
|
|
|
/* take information from here over the normal sample description */
|
|
entry->samples_per_packet = QT_UINT32 (stsd_entry_data + offset);
|
|
entry->bytes_per_packet = QT_UINT32 (stsd_entry_data + offset + 4);
|
|
entry->bytes_per_frame = QT_UINT32 (stsd_entry_data + offset + 8);
|
|
entry->bytes_per_sample = QT_UINT32 (stsd_entry_data + offset + 12);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "Sound sample description Version 1");
|
|
GST_LOG_OBJECT (qtdemux, "samples/packet: %d",
|
|
entry->samples_per_packet);
|
|
GST_LOG_OBJECT (qtdemux, "bytes/packet: %d",
|
|
entry->bytes_per_packet);
|
|
GST_LOG_OBJECT (qtdemux, "bytes/frame: %d",
|
|
entry->bytes_per_frame);
|
|
GST_LOG_OBJECT (qtdemux, "bytes/sample: %d",
|
|
entry->bytes_per_sample);
|
|
|
|
if (!entry->sampled && entry->bytes_per_packet) {
|
|
entry->samples_per_frame = (entry->bytes_per_frame /
|
|
entry->bytes_per_packet) * entry->samples_per_packet;
|
|
GST_LOG_OBJECT (qtdemux, "samples/frame: %d",
|
|
entry->samples_per_frame);
|
|
}
|
|
} else if (version == 0x00020000) {
|
|
/* sample description entry (16) + sound sample description v2 (56) */
|
|
if (len < 72)
|
|
goto corrupt_file;
|
|
|
|
/* take information from here over the normal sample description */
|
|
entry->rate = GST_READ_DOUBLE_BE (stsd_entry_data + offset + 4);
|
|
entry->n_channels = QT_UINT32 (stsd_entry_data + offset + 12);
|
|
entry->samples_per_frame = entry->n_channels;
|
|
entry->bytes_per_sample = QT_UINT32 (stsd_entry_data + offset + 20) / 8;
|
|
entry->bytes_per_packet = QT_UINT32 (stsd_entry_data + offset + 28);
|
|
entry->samples_per_packet = QT_UINT32 (stsd_entry_data + offset + 32);
|
|
entry->bytes_per_frame = entry->bytes_per_sample * entry->n_channels;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "Sound sample description Version 2");
|
|
GST_LOG_OBJECT (qtdemux, "sample rate: %g", entry->rate);
|
|
GST_LOG_OBJECT (qtdemux, "n_channels: %d", entry->n_channels);
|
|
GST_LOG_OBJECT (qtdemux, "bits/channel: %d",
|
|
entry->bytes_per_sample * 8);
|
|
GST_LOG_OBJECT (qtdemux, "format flags: %X",
|
|
QT_UINT32 (stsd_entry_data + offset + 24));
|
|
GST_LOG_OBJECT (qtdemux, "bytes/packet: %d",
|
|
entry->bytes_per_packet);
|
|
GST_LOG_OBJECT (qtdemux, "LPCM frames/packet: %d",
|
|
entry->samples_per_packet);
|
|
} else if (version != 0x00000) {
|
|
GST_WARNING_OBJECT (qtdemux, "unknown audio STSD version %08x",
|
|
version);
|
|
}
|
|
|
|
switch (fourcc) {
|
|
/* Yes, these have to be hard-coded */
|
|
case FOURCC_MAC6:
|
|
{
|
|
entry->samples_per_packet = 6;
|
|
entry->bytes_per_packet = 1;
|
|
entry->bytes_per_frame = 1 * entry->n_channels;
|
|
entry->bytes_per_sample = 1;
|
|
entry->samples_per_frame = 6 * entry->n_channels;
|
|
break;
|
|
}
|
|
case FOURCC_MAC3:
|
|
{
|
|
entry->samples_per_packet = 3;
|
|
entry->bytes_per_packet = 1;
|
|
entry->bytes_per_frame = 1 * entry->n_channels;
|
|
entry->bytes_per_sample = 1;
|
|
entry->samples_per_frame = 3 * entry->n_channels;
|
|
break;
|
|
}
|
|
case FOURCC_ima4:
|
|
{
|
|
entry->samples_per_packet = 64;
|
|
entry->bytes_per_packet = 34;
|
|
entry->bytes_per_frame = 34 * entry->n_channels;
|
|
entry->bytes_per_sample = 2;
|
|
entry->samples_per_frame = 64 * entry->n_channels;
|
|
break;
|
|
}
|
|
case FOURCC_ulaw:
|
|
case FOURCC_alaw:
|
|
{
|
|
entry->samples_per_packet = 1;
|
|
entry->bytes_per_packet = 1;
|
|
entry->bytes_per_frame = 1 * entry->n_channels;
|
|
entry->bytes_per_sample = 1;
|
|
entry->samples_per_frame = 1 * entry->n_channels;
|
|
break;
|
|
}
|
|
case FOURCC_agsm:
|
|
{
|
|
entry->samples_per_packet = 160;
|
|
entry->bytes_per_packet = 33;
|
|
entry->bytes_per_frame = 33 * entry->n_channels;
|
|
entry->bytes_per_sample = 2;
|
|
entry->samples_per_frame = 160 * entry->n_channels;
|
|
break;
|
|
}
|
|
/* fix up any invalid header information from above */
|
|
case FOURCC_twos:
|
|
case FOURCC_sowt:
|
|
case FOURCC_raw_:
|
|
case FOURCC_lpcm:
|
|
/* Sometimes these are set to 0 in the sound sample descriptions so
|
|
* let's try to infer useful values from the other information we
|
|
* have available */
|
|
if (entry->bytes_per_sample == 0)
|
|
entry->bytes_per_sample =
|
|
entry->bytes_per_frame / entry->n_channels;
|
|
if (entry->bytes_per_sample == 0)
|
|
entry->bytes_per_sample = samplesize / 8;
|
|
|
|
if (entry->bytes_per_frame == 0)
|
|
entry->bytes_per_frame =
|
|
entry->bytes_per_sample * entry->n_channels;
|
|
|
|
if (entry->bytes_per_packet == 0)
|
|
entry->bytes_per_packet = entry->bytes_per_sample;
|
|
|
|
if (entry->samples_per_frame == 0)
|
|
entry->samples_per_frame = entry->n_channels;
|
|
|
|
if (entry->samples_per_packet == 0)
|
|
entry->samples_per_packet = entry->samples_per_frame;
|
|
|
|
break;
|
|
case FOURCC_in24:
|
|
case FOURCC_in32:
|
|
case FOURCC_fl32:
|
|
case FOURCC_fl64:
|
|
case FOURCC_s16l:{
|
|
switch (fourcc) {
|
|
case FOURCC_in24:
|
|
entry->bytes_per_sample = 3;
|
|
break;
|
|
case FOURCC_in32:
|
|
case FOURCC_fl32:
|
|
entry->bytes_per_sample = 4;
|
|
break;
|
|
case FOURCC_fl64:
|
|
entry->bytes_per_sample = 8;
|
|
break;
|
|
case FOURCC_s16l:
|
|
entry->bytes_per_sample = 2;
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
entry->samples_per_frame = entry->n_channels;
|
|
entry->bytes_per_frame = entry->n_channels * entry->bytes_per_sample;
|
|
entry->samples_per_packet = entry->samples_per_frame;
|
|
entry->bytes_per_packet = entry->bytes_per_sample;
|
|
break;
|
|
}
|
|
|
|
/* According to TS 102 366, the channel count in
|
|
* a (E)AC3SampleEntry box is to be ignored */
|
|
case 0x20736d:
|
|
case GST_MAKE_FOURCC ('e', 'c', '-', '3'):
|
|
case GST_MAKE_FOURCC ('s', 'a', 'c', '3'): // Nero Recode
|
|
case FOURCC_ac_3:
|
|
entry->n_channels = 0;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (entry->caps)
|
|
gst_caps_unref (entry->caps);
|
|
|
|
entry->caps = qtdemux_audio_caps (qtdemux, stream, entry, fourcc,
|
|
stsd_entry_data + 32, len - 16, &codec);
|
|
|
|
switch (fourcc) {
|
|
case FOURCC_in24:
|
|
case FOURCC_in32:
|
|
case FOURCC_fl32:
|
|
case FOURCC_fl64:
|
|
{
|
|
GNode *enda;
|
|
GNode *fmt;
|
|
|
|
fmt = qtdemux_tree_get_child_by_type (stsd, fourcc);
|
|
|
|
enda = qtdemux_tree_get_child_by_type (fmt, FOURCC_enda);
|
|
if (!enda) {
|
|
wave = qtdemux_tree_get_child_by_type (fmt, FOURCC_wave);
|
|
if (wave)
|
|
enda = qtdemux_tree_get_child_by_type (wave, FOURCC_enda);
|
|
}
|
|
if (enda) {
|
|
int enda_value = QT_UINT16 ((guint8 *) enda->data + 8);
|
|
const gchar *format_str;
|
|
|
|
switch (fourcc) {
|
|
case FOURCC_in24:
|
|
format_str = (enda_value) ? "S24LE" : "S24BE";
|
|
break;
|
|
case FOURCC_in32:
|
|
format_str = (enda_value) ? "S32LE" : "S32BE";
|
|
break;
|
|
case FOURCC_fl32:
|
|
format_str = (enda_value) ? "F32LE" : "F32BE";
|
|
break;
|
|
case FOURCC_fl64:
|
|
format_str = (enda_value) ? "F64LE" : "F64BE";
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
gst_caps_set_simple (entry->caps,
|
|
"format", G_TYPE_STRING, format_str, NULL);
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_owma:
|
|
{
|
|
const guint8 *owma_data;
|
|
const gchar *codec_name = NULL;
|
|
guint owma_len;
|
|
GstBuffer *buf;
|
|
gint version = 1;
|
|
/* from http://msdn.microsoft.com/en-us/library/dd757720(VS.85).aspx */
|
|
/* FIXME this should also be gst_riff_strf_auds,
|
|
* but the latter one is actually missing bits-per-sample :( */
|
|
typedef struct
|
|
{
|
|
gint16 wFormatTag;
|
|
gint16 nChannels;
|
|
gint32 nSamplesPerSec;
|
|
gint32 nAvgBytesPerSec;
|
|
gint16 nBlockAlign;
|
|
gint16 wBitsPerSample;
|
|
gint16 cbSize;
|
|
} WAVEFORMATEX;
|
|
WAVEFORMATEX *wfex;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "parse owma");
|
|
owma_data = stsd_entry_data;
|
|
owma_len = QT_UINT32 (owma_data);
|
|
if (owma_len <= 54) {
|
|
GST_WARNING_OBJECT (qtdemux, "Too small owma header, skipping");
|
|
break;
|
|
}
|
|
wfex = (WAVEFORMATEX *) (owma_data + 36);
|
|
buf = gst_buffer_new_and_alloc (owma_len - 54);
|
|
gst_buffer_fill (buf, 0, owma_data + 54, owma_len - 54);
|
|
if (wfex->wFormatTag == 0x0161) {
|
|
codec_name = "Windows Media Audio";
|
|
version = 2;
|
|
} else if (wfex->wFormatTag == 0x0162) {
|
|
codec_name = "Windows Media Audio 9 Pro";
|
|
version = 3;
|
|
} else if (wfex->wFormatTag == 0x0163) {
|
|
codec_name = "Windows Media Audio 9 Lossless";
|
|
/* is that correct? gstffmpegcodecmap.c is missing it, but
|
|
* fluendo codec seems to support it */
|
|
version = 4;
|
|
}
|
|
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf,
|
|
"wmaversion", G_TYPE_INT, version,
|
|
"block_align", G_TYPE_INT,
|
|
GST_READ_UINT16_LE (&wfex->nBlockAlign), "bitrate", G_TYPE_INT,
|
|
GST_READ_UINT32_LE (&wfex->nAvgBytesPerSec), "width", G_TYPE_INT,
|
|
GST_READ_UINT16_LE (&wfex->wBitsPerSample), "depth", G_TYPE_INT,
|
|
GST_READ_UINT16_LE (&wfex->wBitsPerSample), NULL);
|
|
gst_buffer_unref (buf);
|
|
|
|
if (codec_name) {
|
|
g_free (codec);
|
|
codec = g_strdup (codec_name);
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_wma_:
|
|
{
|
|
guint len = QT_UINT32 (stsd_entry_data);
|
|
len = len <= offset ? 0 : len - offset;
|
|
const guint8 *wfex_data = stsd_entry_data + offset;
|
|
const gchar *codec_name = NULL;
|
|
gint version = 1;
|
|
/* from http://msdn.microsoft.com/en-us/library/dd757720(VS.85).aspx */
|
|
/* FIXME this should also be gst_riff_strf_auds,
|
|
* but the latter one is actually missing bits-per-sample :( */
|
|
typedef struct
|
|
{
|
|
gint16 wFormatTag;
|
|
gint16 nChannels;
|
|
gint32 nSamplesPerSec;
|
|
gint32 nAvgBytesPerSec;
|
|
gint16 nBlockAlign;
|
|
gint16 wBitsPerSample;
|
|
gint16 cbSize;
|
|
} WAVEFORMATEX;
|
|
WAVEFORMATEX wfex;
|
|
|
|
/* FIXME: unify with similar wavformatex parsing code above */
|
|
GST_DEBUG_OBJECT (qtdemux, "parse wma, looking for wfex");
|
|
|
|
/* find wfex */
|
|
while (len >= 8) {
|
|
guint size;
|
|
|
|
if (QT_UINT32 (wfex_data) <= 0x8)
|
|
size = 0;
|
|
else if (QT_UINT32 (wfex_data) <= len)
|
|
size = QT_UINT32 (wfex_data) - 8;
|
|
else
|
|
size = len - 8;
|
|
|
|
if (size < 1)
|
|
/* No real data, so break out */
|
|
break;
|
|
|
|
switch (QT_FOURCC (wfex_data + 4)) {
|
|
case GST_MAKE_FOURCC ('w', 'f', 'e', 'x'):
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "found wfex in stsd");
|
|
|
|
if (size < 8 + 18)
|
|
break;
|
|
|
|
wfex.wFormatTag = GST_READ_UINT16_LE (wfex_data + 8 + 0);
|
|
wfex.nChannels = GST_READ_UINT16_LE (wfex_data + 8 + 2);
|
|
wfex.nSamplesPerSec = GST_READ_UINT32_LE (wfex_data + 8 + 4);
|
|
wfex.nAvgBytesPerSec = GST_READ_UINT32_LE (wfex_data + 8 + 8);
|
|
wfex.nBlockAlign = GST_READ_UINT16_LE (wfex_data + 8 + 12);
|
|
wfex.wBitsPerSample = GST_READ_UINT16_LE (wfex_data + 8 + 14);
|
|
wfex.cbSize = GST_READ_UINT16_LE (wfex_data + 8 + 16);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "Found wfex box in stsd:");
|
|
GST_LOG_OBJECT (qtdemux, "FormatTag = 0x%04x, Channels = %u, "
|
|
"SamplesPerSec = %u, AvgBytesPerSec = %u, BlockAlign = %u, "
|
|
"BitsPerSample = %u, Size = %u", wfex.wFormatTag,
|
|
wfex.nChannels, wfex.nSamplesPerSec, wfex.nAvgBytesPerSec,
|
|
wfex.nBlockAlign, wfex.wBitsPerSample, wfex.cbSize);
|
|
|
|
if (wfex.wFormatTag == 0x0161) {
|
|
codec_name = "Windows Media Audio";
|
|
version = 2;
|
|
} else if (wfex.wFormatTag == 0x0162) {
|
|
codec_name = "Windows Media Audio 9 Pro";
|
|
version = 3;
|
|
} else if (wfex.wFormatTag == 0x0163) {
|
|
codec_name = "Windows Media Audio 9 Lossless";
|
|
/* is that correct? gstffmpegcodecmap.c is missing it, but
|
|
* fluendo codec seems to support it */
|
|
version = 4;
|
|
}
|
|
|
|
gst_caps_set_simple (entry->caps,
|
|
"wmaversion", G_TYPE_INT, version,
|
|
"block_align", G_TYPE_INT, wfex.nBlockAlign,
|
|
"bitrate", G_TYPE_INT, wfex.nAvgBytesPerSec,
|
|
"width", G_TYPE_INT, wfex.wBitsPerSample,
|
|
"depth", G_TYPE_INT, wfex.wBitsPerSample, NULL);
|
|
|
|
if (size > wfex.cbSize) {
|
|
GstBuffer *buf;
|
|
|
|
buf = gst_buffer_new_and_alloc (size - wfex.cbSize);
|
|
gst_buffer_fill (buf, 0, wfex_data + 8 + wfex.cbSize,
|
|
size - wfex.cbSize);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "no codec data");
|
|
}
|
|
|
|
if (codec_name) {
|
|
g_free (codec);
|
|
codec = g_strdup (codec_name);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
len -= size + 8;
|
|
wfex_data += size + 8;
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_opus:
|
|
{
|
|
guint8 *channel_mapping = NULL;
|
|
guint32 dops_len, rate;
|
|
guint8 n_channels;
|
|
guint8 channel_mapping_family;
|
|
guint8 stream_count;
|
|
guint8 coupled_count;
|
|
guint8 i;
|
|
|
|
GNode *opus;
|
|
GNode *dops;
|
|
|
|
opus = qtdemux_tree_get_child_by_type (stsd, FOURCC_opus);
|
|
if (opus == NULL) {
|
|
GST_WARNING_OBJECT (qtdemux, "Opus Sample Entry not found");
|
|
goto corrupt_file;
|
|
}
|
|
|
|
dops = qtdemux_tree_get_child_by_type (opus, FOURCC_dops);
|
|
if (dops == NULL) {
|
|
GST_WARNING_OBJECT (qtdemux, "Opus Specific Box not found");
|
|
goto corrupt_file;
|
|
}
|
|
|
|
/* Opus Specific Box content:
|
|
* 4 bytes: length
|
|
* 4 bytes: "dOps"
|
|
* 1 byte: Version;
|
|
* 1 byte: OutputChannelCount;
|
|
* 2 bytes: PreSkip (big-endians);
|
|
* 4 bytes: InputSampleRate (big-endians);
|
|
* 2 bytes: OutputGain (big-endians);
|
|
* 1 byte: ChannelMappingFamily;
|
|
* if (ChannelMappingFamily != 0) {
|
|
* 1 byte: StreamCount;
|
|
* 1 byte: CoupledCount;
|
|
* for (OutputChannel in 0..OutputChannelCount) {
|
|
* 1 byte: ChannelMapping;
|
|
* }
|
|
* }
|
|
*/
|
|
|
|
dops_len = QT_UINT32 ((guint8 *) dops->data);
|
|
if (len < offset + dops_len) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Opus Sample Entry has bogus size %" G_GUINT32_FORMAT, len);
|
|
goto corrupt_file;
|
|
}
|
|
if (dops_len < 19) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Opus Specific Box has bogus size %" G_GUINT32_FORMAT,
|
|
dops_len);
|
|
goto corrupt_file;
|
|
}
|
|
|
|
n_channels = GST_READ_UINT8 ((guint8 *) dops->data + 9);
|
|
rate = GST_READ_UINT32_BE ((guint8 *) dops->data + 12);
|
|
channel_mapping_family = GST_READ_UINT8 ((guint8 *) dops->data + 18);
|
|
|
|
if (channel_mapping_family != 0) {
|
|
if (dops_len < 21 + n_channels) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Opus Specific Box has bogus size %" G_GUINT32_FORMAT,
|
|
dops_len);
|
|
goto corrupt_file;
|
|
}
|
|
|
|
stream_count = GST_READ_UINT8 ((guint8 *) dops->data + 19);
|
|
coupled_count = GST_READ_UINT8 ((guint8 *) dops->data + 20);
|
|
|
|
if (n_channels > 0) {
|
|
channel_mapping = g_malloc (n_channels * sizeof (guint8));
|
|
for (i = 0; i < n_channels; i++)
|
|
channel_mapping[i] =
|
|
GST_READ_UINT8 ((guint8 *) dops->data + i + 21);
|
|
}
|
|
} else if (n_channels == 1) {
|
|
stream_count = 1;
|
|
coupled_count = 0;
|
|
} else if (n_channels == 2) {
|
|
stream_count = 1;
|
|
coupled_count = 1;
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Opus unexpected nb of channels %d without channel mapping",
|
|
n_channels);
|
|
goto corrupt_file;
|
|
}
|
|
|
|
entry->caps = gst_codec_utils_opus_create_caps (rate, n_channels,
|
|
channel_mapping_family, stream_count, coupled_count,
|
|
channel_mapping);
|
|
g_free (channel_mapping);
|
|
|
|
entry->sampled = TRUE;
|
|
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (codec) {
|
|
GstStructure *s;
|
|
gint bitrate = 0;
|
|
|
|
gst_tag_list_add (stream->stream_tags, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_AUDIO_CODEC, codec, NULL);
|
|
g_free (codec);
|
|
codec = NULL;
|
|
|
|
/* some bitrate info may have ended up in caps */
|
|
s = gst_caps_get_structure (entry->caps, 0);
|
|
gst_structure_get_int (s, "bitrate", &bitrate);
|
|
if (bitrate > 0)
|
|
gst_tag_list_add (stream->stream_tags, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_BITRATE, bitrate, NULL);
|
|
}
|
|
|
|
esds = NULL;
|
|
mp4a = qtdemux_tree_get_child_by_index (stsd, stsd_index);
|
|
if (QTDEMUX_TREE_NODE_FOURCC (mp4a) != fourcc) {
|
|
if (stream->protected) {
|
|
if (QTDEMUX_TREE_NODE_FOURCC (mp4a) == FOURCC_aavd) {
|
|
esds = qtdemux_tree_get_child_by_type (mp4a, FOURCC_esds);
|
|
}
|
|
if (QTDEMUX_TREE_NODE_FOURCC (mp4a) != FOURCC_enca) {
|
|
mp4a = NULL;
|
|
}
|
|
} else {
|
|
mp4a = NULL;
|
|
}
|
|
}
|
|
|
|
wave = NULL;
|
|
if (mp4a) {
|
|
wave = qtdemux_tree_get_child_by_type (mp4a, FOURCC_wave);
|
|
if (wave)
|
|
esds = qtdemux_tree_get_child_by_type (wave, FOURCC_esds);
|
|
if (!esds)
|
|
esds = qtdemux_tree_get_child_by_type (mp4a, FOURCC_esds);
|
|
}
|
|
|
|
|
|
/* If the fourcc's bottom 16 bits gives 'sm', then the top
|
|
16 bits is a byte-swapped wave-style codec identifier,
|
|
and we can find a WAVE header internally to a 'wave' atom here.
|
|
This can more clearly be thought of as 'ms' as the top 16 bits, and a
|
|
codec id as the bottom 16 bits - but byte-swapped to store in QT (which
|
|
is big-endian).
|
|
*/
|
|
if ((fourcc & 0xffff) == (('s' << 8) | 'm')) {
|
|
if (len < offset + 20) {
|
|
GST_WARNING_OBJECT (qtdemux, "No wave atom in MS-style audio");
|
|
} else {
|
|
guint32 datalen = QT_UINT32 (stsd_entry_data + offset + 16);
|
|
const guint8 *data = stsd_entry_data + offset + 16;
|
|
GNode *wavenode;
|
|
GNode *waveheadernode;
|
|
|
|
wavenode = g_node_new ((guint8 *) data);
|
|
if (qtdemux_parse_node (qtdemux, wavenode, data, datalen)) {
|
|
const guint8 *waveheader;
|
|
guint32 headerlen;
|
|
|
|
waveheadernode = qtdemux_tree_get_child_by_type (wavenode, fourcc);
|
|
if (waveheadernode) {
|
|
waveheader = (const guint8 *) waveheadernode->data;
|
|
headerlen = QT_UINT32 (waveheader);
|
|
|
|
if (headerlen > 8) {
|
|
gst_riff_strf_auds *header = NULL;
|
|
GstBuffer *headerbuf;
|
|
GstBuffer *extra;
|
|
|
|
waveheader += 8;
|
|
headerlen -= 8;
|
|
|
|
headerbuf = gst_buffer_new_and_alloc (headerlen);
|
|
gst_buffer_fill (headerbuf, 0, waveheader, headerlen);
|
|
|
|
if (gst_riff_parse_strf_auds (GST_ELEMENT_CAST (qtdemux),
|
|
headerbuf, &header, &extra)) {
|
|
gst_caps_unref (entry->caps);
|
|
/* FIXME: Need to do something with the channel reorder map */
|
|
entry->caps =
|
|
gst_riff_create_audio_caps (header->format, NULL, header,
|
|
extra, NULL, NULL, NULL);
|
|
|
|
if (extra)
|
|
gst_buffer_unref (extra);
|
|
g_free (header);
|
|
}
|
|
}
|
|
} else
|
|
GST_DEBUG ("Didn't find waveheadernode for this codec");
|
|
}
|
|
g_node_destroy (wavenode);
|
|
}
|
|
} else if (esds) {
|
|
gst_qtdemux_handle_esds (qtdemux, stream, entry, esds,
|
|
stream->stream_tags);
|
|
} else {
|
|
switch (fourcc) {
|
|
#if 0
|
|
/* FIXME: what is in the chunk? */
|
|
case FOURCC_QDMC:
|
|
{
|
|
gint len = QT_UINT32 (stsd_data);
|
|
|
|
/* seems to be always = 116 = 0x74 */
|
|
break;
|
|
}
|
|
#endif
|
|
case FOURCC_QDM2:
|
|
{
|
|
gint len = QT_UINT32 (stsd_entry_data);
|
|
|
|
if (len > 0x3C) {
|
|
GstBuffer *buf = gst_buffer_new_and_alloc (len - 0x3C);
|
|
|
|
gst_buffer_fill (buf, 0, stsd_entry_data + 0x3C, len - 0x3C);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
gst_caps_set_simple (entry->caps,
|
|
"samplesize", G_TYPE_INT, samplesize, NULL);
|
|
break;
|
|
}
|
|
case FOURCC_alac:
|
|
{
|
|
GNode *alac, *wave = NULL;
|
|
|
|
/* apparently, m4a has this atom appended directly in the stsd entry,
|
|
* while mov has it in a wave atom */
|
|
alac = qtdemux_tree_get_child_by_type (stsd, FOURCC_alac);
|
|
if (alac) {
|
|
/* alac now refers to stsd entry atom */
|
|
wave = qtdemux_tree_get_child_by_type (alac, FOURCC_wave);
|
|
if (wave)
|
|
alac = qtdemux_tree_get_child_by_type (wave, FOURCC_alac);
|
|
else
|
|
alac = qtdemux_tree_get_child_by_type (alac, FOURCC_alac);
|
|
}
|
|
if (alac) {
|
|
const guint8 *alac_data = alac->data;
|
|
gint len = QT_UINT32 (alac->data);
|
|
GstBuffer *buf;
|
|
|
|
if (len < 36) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"discarding alac atom with unexpected len %d", len);
|
|
} else {
|
|
/* codec-data contains alac atom size and prefix,
|
|
* ffmpeg likes it that way, not quite gst-ish though ...*/
|
|
buf = gst_buffer_new_and_alloc (len);
|
|
gst_buffer_fill (buf, 0, alac->data, len);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
|
|
entry->bytes_per_frame = QT_UINT32 (alac_data + 12);
|
|
entry->n_channels = QT_UINT8 (alac_data + 21);
|
|
entry->rate = QT_UINT32 (alac_data + 32);
|
|
samplesize = QT_UINT8 (alac_data + 16 + 1);
|
|
}
|
|
}
|
|
gst_caps_set_simple (entry->caps,
|
|
"samplesize", G_TYPE_INT, samplesize, NULL);
|
|
break;
|
|
}
|
|
case FOURCC_fLaC:
|
|
{
|
|
/* The codingname of the sample entry is 'fLaC' */
|
|
GNode *flac = qtdemux_tree_get_child_by_type (stsd, FOURCC_fLaC);
|
|
|
|
if (flac) {
|
|
/* The 'dfLa' box is added to the sample entry to convey
|
|
initializing information for the decoder. */
|
|
const GNode *dfla =
|
|
qtdemux_tree_get_child_by_type (flac, FOURCC_dfLa);
|
|
|
|
if (dfla) {
|
|
const guint32 len = QT_UINT32 (dfla->data);
|
|
|
|
/* Must contain at least dfLa box header (12),
|
|
* METADATA_BLOCK_HEADER (4), METADATA_BLOCK_STREAMINFO (34) */
|
|
if (len < 50) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"discarding dfla atom with unexpected len %d", len);
|
|
} else {
|
|
/* skip dfLa header to get the METADATA_BLOCKs */
|
|
const guint8 *metadata_blocks = (guint8 *) dfla->data + 12;
|
|
const guint32 metadata_blocks_len = len - 12;
|
|
|
|
gchar *stream_marker = g_strdup ("fLaC");
|
|
GstBuffer *block = gst_buffer_new_wrapped (stream_marker,
|
|
strlen (stream_marker));
|
|
|
|
guint32 index = 0;
|
|
guint32 remainder = 0;
|
|
guint32 block_size = 0;
|
|
gboolean is_last = FALSE;
|
|
|
|
GValue array = G_VALUE_INIT;
|
|
GValue value = G_VALUE_INIT;
|
|
|
|
g_value_init (&array, GST_TYPE_ARRAY);
|
|
g_value_init (&value, GST_TYPE_BUFFER);
|
|
|
|
gst_value_set_buffer (&value, block);
|
|
gst_value_array_append_value (&array, &value);
|
|
g_value_reset (&value);
|
|
|
|
gst_buffer_unref (block);
|
|
|
|
/* check there's at least one METADATA_BLOCK_HEADER's worth
|
|
* of data, and we haven't already finished parsing */
|
|
while (!is_last && ((index + 3) < metadata_blocks_len)) {
|
|
remainder = metadata_blocks_len - index;
|
|
|
|
/* add the METADATA_BLOCK_HEADER size to the signalled size */
|
|
block_size = 4 +
|
|
(metadata_blocks[index + 1] << 16) +
|
|
(metadata_blocks[index + 2] << 8) +
|
|
metadata_blocks[index + 3];
|
|
|
|
/* be careful not to read off end of box */
|
|
if (block_size > remainder) {
|
|
break;
|
|
}
|
|
|
|
is_last = metadata_blocks[index] >> 7;
|
|
|
|
block = gst_buffer_new_and_alloc (block_size);
|
|
|
|
gst_buffer_fill (block, 0, &metadata_blocks[index],
|
|
block_size);
|
|
|
|
gst_value_set_buffer (&value, block);
|
|
gst_value_array_append_value (&array, &value);
|
|
g_value_reset (&value);
|
|
|
|
gst_buffer_unref (block);
|
|
|
|
index += block_size;
|
|
}
|
|
|
|
/* only append the metadata if we successfully read all of it */
|
|
if (is_last) {
|
|
gst_structure_set_value (gst_caps_get_structure (CUR_STREAM
|
|
(stream)->caps, 0), "streamheader", &array);
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"discarding all METADATA_BLOCKs due to invalid "
|
|
"block_size %d at idx %d, rem %d", block_size, index,
|
|
remainder);
|
|
}
|
|
|
|
g_value_unset (&value);
|
|
g_value_unset (&array);
|
|
|
|
/* The sample rate obtained from the stsd may not be accurate
|
|
* since it cannot represent rates greater than 65535Hz, so
|
|
* override that value with the sample rate from the
|
|
* METADATA_BLOCK_STREAMINFO block */
|
|
CUR_STREAM (stream)->rate =
|
|
(QT_UINT32 (metadata_blocks + 14) >> 12) & 0xFFFFF;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_sawb:
|
|
/* Fallthrough! */
|
|
amrwb = TRUE;
|
|
case FOURCC_samr:
|
|
{
|
|
gint len = QT_UINT32 (stsd_entry_data);
|
|
|
|
if (len > 0x24) {
|
|
GstBuffer *buf = gst_buffer_new_and_alloc (len - 0x24);
|
|
guint bitrate;
|
|
|
|
gst_buffer_fill (buf, 0, stsd_entry_data + 0x24, len - 0x24);
|
|
|
|
/* If we have enough data, let's try to get the 'damr' atom. See
|
|
* the 3GPP container spec (26.244) for more details. */
|
|
if ((len - 0x34) > 8 &&
|
|
(bitrate = qtdemux_parse_amr_bitrate (buf, amrwb))) {
|
|
gst_tag_list_add (stream->stream_tags, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_MAXIMUM_BITRATE, bitrate, NULL);
|
|
}
|
|
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_mp4a:
|
|
{
|
|
/* mp4a atom withtout ESDS; Attempt to build codec data from atom */
|
|
gint len = QT_UINT32 (stsd_entry_data);
|
|
guint16 sound_version = 0;
|
|
/* FIXME: Can this be determined somehow? There doesn't seem to be
|
|
* anything in mp4a atom that specifis compression */
|
|
gint profile = 2;
|
|
guint16 channels = entry->n_channels;
|
|
guint32 time_scale = (guint32) entry->rate;
|
|
gint sample_rate_index = -1;
|
|
|
|
if (len >= 34) {
|
|
sound_version = QT_UINT16 (stsd_entry_data + 16);
|
|
|
|
if (sound_version == 1) {
|
|
channels = QT_UINT16 (stsd_entry_data + 24);
|
|
time_scale = QT_UINT32 (stsd_entry_data + 30);
|
|
} else {
|
|
GST_FIXME_OBJECT (qtdemux, "Unhandled mp4a atom version %d",
|
|
sound_version);
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "Too small stsd entry data len %d",
|
|
len);
|
|
}
|
|
|
|
sample_rate_index =
|
|
gst_codec_utils_aac_get_index_from_sample_rate (time_scale);
|
|
if (sample_rate_index >= 0 && channels > 0) {
|
|
guint8 codec_data[2];
|
|
GstBuffer *buf;
|
|
|
|
/* build AAC codec data */
|
|
codec_data[0] = profile << 3;
|
|
codec_data[0] |= ((sample_rate_index >> 1) & 0x7);
|
|
codec_data[1] = (sample_rate_index & 0x01) << 7;
|
|
codec_data[1] |= (channels & 0xF) << 3;
|
|
|
|
buf = gst_buffer_new_and_alloc (2);
|
|
gst_buffer_fill (buf, 0, codec_data, 2);
|
|
gst_caps_set_simple (entry->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_opus:
|
|
case FOURCC_lpcm:
|
|
case FOURCC_in24:
|
|
case FOURCC_in32:
|
|
case FOURCC_fl32:
|
|
case FOURCC_fl64:
|
|
case FOURCC_s16l:
|
|
/* Fully handled elsewhere */
|
|
break;
|
|
default:
|
|
GST_INFO_OBJECT (qtdemux,
|
|
"unhandled type %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
|
|
break;
|
|
}
|
|
}
|
|
GST_INFO_OBJECT (qtdemux,
|
|
"type %" GST_FOURCC_FORMAT " caps %" GST_PTR_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc), entry->caps);
|
|
|
|
} else if (stream->subtype == FOURCC_strm) {
|
|
if (fourcc == FOURCC_rtsp) {
|
|
stream->redirect_uri = qtdemux_get_rtsp_uri_from_hndl (qtdemux, minf);
|
|
} else {
|
|
GST_INFO_OBJECT (qtdemux, "unhandled stream type %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
goto unknown_stream;
|
|
}
|
|
entry->sampled = TRUE;
|
|
} else if (stream->subtype == FOURCC_subp || stream->subtype == FOURCC_text
|
|
|| stream->subtype == FOURCC_sbtl || stream->subtype == FOURCC_subt
|
|
|| stream->subtype == FOURCC_clcp || stream->subtype == FOURCC_wvtt) {
|
|
|
|
entry->sampled = TRUE;
|
|
entry->sparse = TRUE;
|
|
|
|
entry->caps =
|
|
qtdemux_sub_caps (qtdemux, stream, entry, fourcc, stsd_entry_data,
|
|
&codec);
|
|
if (codec) {
|
|
gst_tag_list_add (stream->stream_tags, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_SUBTITLE_CODEC, codec, NULL);
|
|
g_free (codec);
|
|
codec = NULL;
|
|
}
|
|
|
|
/* hunt for sort-of codec data */
|
|
switch (fourcc) {
|
|
case FOURCC_mp4s:
|
|
{
|
|
GNode *mp4s = NULL;
|
|
GNode *esds = NULL;
|
|
|
|
/* look for palette in a stsd->mp4s->esds sub-atom */
|
|
mp4s = qtdemux_tree_get_child_by_type (stsd, FOURCC_mp4s);
|
|
if (mp4s)
|
|
esds = qtdemux_tree_get_child_by_type (mp4s, FOURCC_esds);
|
|
if (esds == NULL) {
|
|
/* Invalid STSD */
|
|
GST_LOG_OBJECT (qtdemux, "Skipping invalid stsd: no esds child");
|
|
break;
|
|
}
|
|
|
|
gst_qtdemux_handle_esds (qtdemux, stream, entry, esds,
|
|
stream->stream_tags);
|
|
break;
|
|
}
|
|
default:
|
|
GST_INFO_OBJECT (qtdemux,
|
|
"unhandled type %" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
|
|
break;
|
|
}
|
|
GST_INFO_OBJECT (qtdemux,
|
|
"type %" GST_FOURCC_FORMAT " caps %" GST_PTR_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc), entry->caps);
|
|
} else if (stream->subtype == FOURCC_meta) {
|
|
entry->sampled = TRUE;
|
|
entry->sparse = TRUE;
|
|
|
|
entry->caps =
|
|
qtdemux_meta_caps (qtdemux, stream, entry, fourcc, stsd_entry_data,
|
|
&codec);
|
|
if (codec) {
|
|
gst_tag_list_add (stream->stream_tags, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_CODEC, codec, NULL);
|
|
g_free (codec);
|
|
codec = NULL;
|
|
}
|
|
|
|
GST_INFO_OBJECT (qtdemux,
|
|
"type %" GST_FOURCC_FORMAT " caps %" GST_PTR_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc), entry->caps);
|
|
} else {
|
|
/* everything in 1 sample */
|
|
entry->sampled = TRUE;
|
|
|
|
entry->caps =
|
|
qtdemux_generic_caps (qtdemux, stream, entry, fourcc, stsd_entry_data,
|
|
&codec);
|
|
|
|
if (entry->caps == NULL)
|
|
goto unknown_stream;
|
|
|
|
if (codec) {
|
|
gst_tag_list_add (stream->stream_tags, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_SUBTITLE_CODEC, codec, NULL);
|
|
g_free (codec);
|
|
codec = NULL;
|
|
}
|
|
}
|
|
|
|
/* promote to sampled format */
|
|
if (entry->fourcc == FOURCC_samr) {
|
|
/* force mono 8000 Hz for AMR */
|
|
entry->sampled = TRUE;
|
|
entry->n_channels = 1;
|
|
entry->rate = 8000;
|
|
} else if (entry->fourcc == FOURCC_sawb) {
|
|
/* force mono 16000 Hz for AMR-WB */
|
|
entry->sampled = TRUE;
|
|
entry->n_channels = 1;
|
|
entry->rate = 16000;
|
|
} else if (entry->fourcc == FOURCC_mp4a) {
|
|
entry->sampled = TRUE;
|
|
}
|
|
|
|
|
|
stsd_entry_data += len;
|
|
remaining_stsd_len -= len;
|
|
|
|
}
|
|
|
|
/* collect sample information */
|
|
if (!qtdemux_stbl_init (qtdemux, stream, stbl))
|
|
goto samples_failed;
|
|
|
|
if (qtdemux->fragmented) {
|
|
guint64 offset;
|
|
|
|
/* need all moov samples as basis; probably not many if any at all */
|
|
/* prevent moof parsing taking of at this time */
|
|
offset = qtdemux->moof_offset;
|
|
qtdemux->moof_offset = 0;
|
|
if (stream->n_samples &&
|
|
!qtdemux_parse_samples (qtdemux, stream, stream->n_samples - 1)) {
|
|
qtdemux->moof_offset = offset;
|
|
goto samples_failed;
|
|
}
|
|
qtdemux->moof_offset = offset;
|
|
/* movie duration more reliable in this case (e.g. mehd) */
|
|
if (qtdemux->segment.duration &&
|
|
GST_CLOCK_TIME_IS_VALID (qtdemux->segment.duration))
|
|
stream->duration =
|
|
GSTTIME_TO_QTSTREAMTIME (stream, qtdemux->segment.duration);
|
|
}
|
|
|
|
/* configure segments */
|
|
if (!qtdemux_parse_segments (qtdemux, stream, trak))
|
|
goto segments_failed;
|
|
|
|
/* add some language tag, if useful */
|
|
if (stream->lang_id[0] != '\0' && strcmp (stream->lang_id, "unk") &&
|
|
strcmp (stream->lang_id, "und")) {
|
|
const gchar *lang_code;
|
|
|
|
/* convert ISO 639-2 code to ISO 639-1 */
|
|
lang_code = gst_tag_get_language_code (stream->lang_id);
|
|
gst_tag_list_add (stream->stream_tags, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_LANGUAGE_CODE, (lang_code) ? lang_code : stream->lang_id, NULL);
|
|
}
|
|
|
|
/* Check for UDTA tags */
|
|
if ((udta = qtdemux_tree_get_child_by_type (trak, FOURCC_udta))) {
|
|
qtdemux_parse_udta (qtdemux, stream->stream_tags, udta);
|
|
}
|
|
|
|
/* Insert and sort new stream in track-id order.
|
|
* This will help in comparing old/new streams during stream update check */
|
|
g_ptr_array_add (qtdemux->active_streams, stream);
|
|
g_ptr_array_sort (qtdemux->active_streams,
|
|
(GCompareFunc) qtdemux_track_id_compare_func);
|
|
GST_DEBUG_OBJECT (qtdemux, "n_streams is now %d",
|
|
QTDEMUX_N_STREAMS (qtdemux));
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
corrupt_file:
|
|
{
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DEMUX,
|
|
(_("This file is corrupt and cannot be played.")), (NULL));
|
|
if (stream)
|
|
gst_qtdemux_stream_unref (stream);
|
|
return FALSE;
|
|
}
|
|
error_encrypted:
|
|
{
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DECRYPT, (NULL), (NULL));
|
|
gst_qtdemux_stream_unref (stream);
|
|
return FALSE;
|
|
}
|
|
samples_failed:
|
|
segments_failed:
|
|
{
|
|
/* we posted an error already */
|
|
/* free stbl sub-atoms */
|
|
gst_qtdemux_stbl_free (stream);
|
|
gst_qtdemux_stream_unref (stream);
|
|
return FALSE;
|
|
}
|
|
existing_stream:
|
|
{
|
|
GST_INFO_OBJECT (qtdemux, "stream with track id %i already exists",
|
|
track_id);
|
|
return TRUE;
|
|
}
|
|
unknown_stream:
|
|
{
|
|
GST_INFO_OBJECT (qtdemux, "unknown subtype %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (stream->subtype));
|
|
gst_qtdemux_stream_unref (stream);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
/* If we can estimate the overall bitrate, and don't have information about the
|
|
* stream bitrate for exactly one stream, this guesses the stream bitrate as
|
|
* the overall bitrate minus the sum of the bitrates of all other streams. This
|
|
* should be useful for the common case where we have one audio and one video
|
|
* stream and can estimate the bitrate of one, but not the other. */
|
|
static void
|
|
gst_qtdemux_guess_bitrate (GstQTDemux * qtdemux)
|
|
{
|
|
QtDemuxStream *stream = NULL;
|
|
gint64 size, sys_bitrate, sum_bitrate = 0;
|
|
GstClockTime duration;
|
|
guint bitrate;
|
|
gint i;
|
|
|
|
if (qtdemux->fragmented)
|
|
return;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "Looking for streams with unknown bitrate");
|
|
|
|
if (!gst_pad_peer_query_duration (qtdemux->sinkpad, GST_FORMAT_BYTES, &size)
|
|
|| size <= 0) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Size in bytes of the stream not known - bailing");
|
|
return;
|
|
}
|
|
|
|
/* Subtract the header size */
|
|
GST_DEBUG_OBJECT (qtdemux, "Total size %" G_GINT64_FORMAT ", header size %u",
|
|
size, qtdemux->header_size);
|
|
|
|
if (size < qtdemux->header_size)
|
|
return;
|
|
|
|
size = size - qtdemux->header_size;
|
|
|
|
if (!gst_qtdemux_get_duration (qtdemux, &duration)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Stream duration not known - bailing");
|
|
return;
|
|
}
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *str = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
switch (str->subtype) {
|
|
case FOURCC_soun:
|
|
case FOURCC_vide:
|
|
GST_DEBUG_OBJECT (qtdemux, "checking bitrate for %" GST_PTR_FORMAT,
|
|
CUR_STREAM (str)->caps);
|
|
/* retrieve bitrate, prefer avg then max */
|
|
bitrate = 0;
|
|
if (str->stream_tags) {
|
|
if (gst_tag_list_get_uint (str->stream_tags,
|
|
GST_TAG_MAXIMUM_BITRATE, &bitrate))
|
|
GST_DEBUG_OBJECT (qtdemux, "max-bitrate: %u", bitrate);
|
|
if (gst_tag_list_get_uint (str->stream_tags,
|
|
GST_TAG_NOMINAL_BITRATE, &bitrate))
|
|
GST_DEBUG_OBJECT (qtdemux, "nominal-bitrate: %u", bitrate);
|
|
if (gst_tag_list_get_uint (str->stream_tags,
|
|
GST_TAG_BITRATE, &bitrate))
|
|
GST_DEBUG_OBJECT (qtdemux, "bitrate: %u", bitrate);
|
|
}
|
|
if (bitrate)
|
|
sum_bitrate += bitrate;
|
|
else {
|
|
if (stream) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
">1 stream with unknown bitrate - bailing");
|
|
return;
|
|
} else
|
|
stream = str;
|
|
}
|
|
|
|
default:
|
|
/* For other subtypes, we assume no significant impact on bitrate */
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!stream) {
|
|
GST_DEBUG_OBJECT (qtdemux, "All stream bitrates are known");
|
|
return;
|
|
}
|
|
|
|
sys_bitrate = gst_util_uint64_scale (size, GST_SECOND * 8, duration);
|
|
|
|
if (sys_bitrate < sum_bitrate) {
|
|
/* This can happen, since sum_bitrate might be derived from maximum
|
|
* bitrates and not average bitrates */
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"System bitrate less than sum bitrate - bailing");
|
|
return;
|
|
}
|
|
|
|
bitrate = sys_bitrate - sum_bitrate;
|
|
GST_DEBUG_OBJECT (qtdemux, "System bitrate = %" G_GINT64_FORMAT
|
|
", Stream bitrate = %u", sys_bitrate, bitrate);
|
|
|
|
if (!stream->stream_tags)
|
|
stream->stream_tags = gst_tag_list_new_empty ();
|
|
else
|
|
stream->stream_tags = gst_tag_list_make_writable (stream->stream_tags);
|
|
|
|
gst_tag_list_add (stream->stream_tags, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_BITRATE, bitrate, NULL);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
qtdemux_prepare_streams (GstQTDemux * qtdemux)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
gint i;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "prepare %u streams", QTDEMUX_N_STREAMS (qtdemux));
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
guint32 sample_num = 0;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "track-id %u, fourcc %" GST_FOURCC_FORMAT,
|
|
stream->track_id, GST_FOURCC_ARGS (CUR_STREAM (stream)->fourcc));
|
|
|
|
if (qtdemux->fragmented && qtdemux->pullbased) {
|
|
/* need all moov samples first */
|
|
GST_OBJECT_LOCK (qtdemux);
|
|
while (stream->n_samples == 0)
|
|
if ((ret = qtdemux_add_fragmented_samples (qtdemux)) != GST_FLOW_OK)
|
|
break;
|
|
GST_OBJECT_UNLOCK (qtdemux);
|
|
} else {
|
|
/* discard any stray moof */
|
|
qtdemux->moof_offset = 0;
|
|
}
|
|
|
|
/* prepare braking */
|
|
if (ret != GST_FLOW_ERROR)
|
|
ret = GST_FLOW_OK;
|
|
|
|
/* in pull mode, we should have parsed some sample info by now;
|
|
* and quite some code will not handle no samples.
|
|
* in push mode, we'll just have to deal with it */
|
|
if (G_UNLIKELY (qtdemux->pullbased && !stream->n_samples)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "no samples for stream; discarding");
|
|
g_ptr_array_remove_index (qtdemux->active_streams, i);
|
|
i--;
|
|
continue;
|
|
} else if (stream->track_id == qtdemux->chapters_track_id &&
|
|
(stream->subtype == FOURCC_text || stream->subtype == FOURCC_sbtl)) {
|
|
/* TODO - parse chapters track and expose it as GstToc; For now just ignore it
|
|
so that it doesn't look like a subtitle track */
|
|
g_ptr_array_remove_index (qtdemux->active_streams, i);
|
|
i--;
|
|
continue;
|
|
}
|
|
|
|
/* parse the initial sample for use in setting the frame rate cap */
|
|
while (sample_num == 0 && sample_num < stream->n_samples) {
|
|
if (!qtdemux_parse_samples (qtdemux, stream, sample_num))
|
|
break;
|
|
++sample_num;
|
|
}
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
_stream_equal_func (const QtDemuxStream * stream, const gchar * stream_id)
|
|
{
|
|
return g_strcmp0 (stream->stream_id, stream_id) == 0;
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_is_streams_update (GstQTDemux * qtdemux)
|
|
{
|
|
gint i;
|
|
|
|
/* Different length, updated */
|
|
if (QTDEMUX_N_STREAMS (qtdemux) != qtdemux->old_streams->len)
|
|
return TRUE;
|
|
|
|
/* streams in list are sorted in track-id order */
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
/* Different stream-id, updated */
|
|
if (g_strcmp0 (QTDEMUX_NTH_STREAM (qtdemux, i)->stream_id,
|
|
QTDEMUX_NTH_OLD_STREAM (qtdemux, i)->stream_id))
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_reuse_and_configure_stream (GstQTDemux * qtdemux,
|
|
QtDemuxStream * oldstream, QtDemuxStream * newstream)
|
|
{
|
|
/* Connect old stream's srcpad to new stream */
|
|
newstream->pad = oldstream->pad;
|
|
oldstream->pad = NULL;
|
|
|
|
/* unset new_stream to prevent stream-start event, unless we are EOS in which
|
|
* case we need to force one through */
|
|
newstream->new_stream = newstream->pad != NULL
|
|
&& GST_PAD_IS_EOS (newstream->pad);
|
|
|
|
return gst_qtdemux_configure_stream (qtdemux, newstream);
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_update_streams (GstQTDemux * qtdemux)
|
|
{
|
|
gint i;
|
|
g_assert (qtdemux->streams_aware);
|
|
|
|
/* At below, figure out which stream in active_streams has identical stream-id
|
|
* with that of in old_streams. If there is matching stream-id,
|
|
* corresponding newstream will not be exposed again,
|
|
* but demux will reuse srcpad of matched old stream
|
|
*
|
|
* active_streams : newly created streams from the latest moov
|
|
* old_streams : existing streams (belong to previous moov)
|
|
*/
|
|
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
QtDemuxStream *oldstream = NULL;
|
|
guint target;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "track-id %u, fourcc %" GST_FOURCC_FORMAT,
|
|
stream->track_id, GST_FOURCC_ARGS (CUR_STREAM (stream)->fourcc));
|
|
|
|
if (g_ptr_array_find_with_equal_func (qtdemux->old_streams,
|
|
stream->stream_id, (GEqualFunc) _stream_equal_func, &target)) {
|
|
oldstream = QTDEMUX_NTH_OLD_STREAM (qtdemux, target);
|
|
|
|
/* null pad stream cannot be reused */
|
|
if (oldstream->pad == NULL)
|
|
oldstream = NULL;
|
|
}
|
|
|
|
if (oldstream) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Reuse track-id %d", oldstream->track_id);
|
|
|
|
if (!qtdemux_reuse_and_configure_stream (qtdemux, oldstream, stream))
|
|
return FALSE;
|
|
|
|
/* we don't need to preserve order of old streams */
|
|
g_ptr_array_remove_fast (qtdemux->old_streams, oldstream);
|
|
} else {
|
|
GstTagList *list;
|
|
|
|
/* now we have all info and can expose */
|
|
list = stream->stream_tags;
|
|
stream->stream_tags = NULL;
|
|
if (!gst_qtdemux_add_stream (qtdemux, stream, list))
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* Must be called with expose lock */
|
|
static GstFlowReturn
|
|
qtdemux_expose_streams (GstQTDemux * qtdemux)
|
|
{
|
|
gint i;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "exposing streams");
|
|
|
|
if (!qtdemux_is_streams_update (qtdemux)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Reuse all streams");
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *new_stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
QtDemuxStream *old_stream = QTDEMUX_NTH_OLD_STREAM (qtdemux, i);
|
|
if (!qtdemux_reuse_and_configure_stream (qtdemux, old_stream, new_stream))
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
g_ptr_array_set_size (qtdemux->old_streams, 0);
|
|
qtdemux->need_segment = TRUE;
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
if (qtdemux->streams_aware) {
|
|
if (!qtdemux_update_streams (qtdemux))
|
|
return GST_FLOW_ERROR;
|
|
} else {
|
|
for (i = 0; i < QTDEMUX_N_STREAMS (qtdemux); i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_STREAM (qtdemux, i);
|
|
GstTagList *list;
|
|
|
|
/* now we have all info and can expose */
|
|
list = stream->stream_tags;
|
|
stream->stream_tags = NULL;
|
|
if (!gst_qtdemux_add_stream (qtdemux, stream, list))
|
|
return GST_FLOW_ERROR;
|
|
|
|
}
|
|
}
|
|
|
|
gst_qtdemux_guess_bitrate (qtdemux);
|
|
|
|
/* If we have still old_streams, it's no more used stream */
|
|
for (i = 0; i < qtdemux->old_streams->len; i++) {
|
|
QtDemuxStream *stream = QTDEMUX_NTH_OLD_STREAM (qtdemux, i);
|
|
|
|
if (stream->pad) {
|
|
GstEvent *event;
|
|
|
|
event = gst_event_new_eos ();
|
|
if (qtdemux->segment_seqnum)
|
|
gst_event_set_seqnum (event, qtdemux->segment_seqnum);
|
|
|
|
gst_pad_push_event (stream->pad, event);
|
|
}
|
|
}
|
|
|
|
g_ptr_array_set_size (qtdemux->old_streams, 0);
|
|
|
|
gst_element_no_more_pads (GST_ELEMENT_CAST (qtdemux));
|
|
|
|
/* check if we should post a redirect in case there is a single trak
|
|
* and it is a redirecting trak */
|
|
if (QTDEMUX_N_STREAMS (qtdemux) == 1 &&
|
|
QTDEMUX_NTH_STREAM (qtdemux, 0)->redirect_uri != NULL) {
|
|
GstMessage *m;
|
|
|
|
GST_INFO_OBJECT (qtdemux, "Issuing a redirect due to a single track with "
|
|
"an external content");
|
|
m = gst_message_new_element (GST_OBJECT_CAST (qtdemux),
|
|
gst_structure_new ("redirect",
|
|
"new-location", G_TYPE_STRING,
|
|
QTDEMUX_NTH_STREAM (qtdemux, 0)->redirect_uri, NULL));
|
|
gst_element_post_message (GST_ELEMENT_CAST (qtdemux), m);
|
|
g_free (qtdemux->redirect_location);
|
|
qtdemux->redirect_location =
|
|
g_strdup (QTDEMUX_NTH_STREAM (qtdemux, 0)->redirect_uri);
|
|
}
|
|
|
|
g_ptr_array_foreach (qtdemux->active_streams,
|
|
(GFunc) qtdemux_do_allocation, qtdemux);
|
|
|
|
qtdemux->need_segment = TRUE;
|
|
|
|
qtdemux->exposed = TRUE;
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
GstStructure *structure; /* helper for sort function */
|
|
gchar *location;
|
|
guint min_req_bitrate;
|
|
guint min_req_qt_version;
|
|
} GstQtReference;
|
|
|
|
static gint
|
|
qtdemux_redirects_sort_func (gconstpointer a, gconstpointer b)
|
|
{
|
|
GstQtReference *ref_a = (GstQtReference *) a;
|
|
GstQtReference *ref_b = (GstQtReference *) b;
|
|
|
|
if (ref_b->min_req_qt_version != ref_a->min_req_qt_version)
|
|
return ref_b->min_req_qt_version - ref_a->min_req_qt_version;
|
|
|
|
/* known bitrates go before unknown; higher bitrates go first */
|
|
return ref_b->min_req_bitrate - ref_a->min_req_bitrate;
|
|
}
|
|
|
|
/* sort the redirects and post a message for the application.
|
|
*/
|
|
static void
|
|
qtdemux_process_redirects (GstQTDemux * qtdemux, GList * references)
|
|
{
|
|
GstQtReference *best;
|
|
GstStructure *s;
|
|
GstMessage *msg;
|
|
GValue list_val = { 0, };
|
|
GList *l;
|
|
|
|
g_assert (references != NULL);
|
|
|
|
references = g_list_sort (references, qtdemux_redirects_sort_func);
|
|
|
|
best = (GstQtReference *) references->data;
|
|
|
|
g_value_init (&list_val, GST_TYPE_LIST);
|
|
|
|
for (l = references; l != NULL; l = l->next) {
|
|
GstQtReference *ref = (GstQtReference *) l->data;
|
|
GValue struct_val = { 0, };
|
|
|
|
ref->structure = gst_structure_new ("redirect",
|
|
"new-location", G_TYPE_STRING, ref->location, NULL);
|
|
|
|
if (ref->min_req_bitrate > 0) {
|
|
gst_structure_set (ref->structure, "minimum-bitrate", G_TYPE_INT,
|
|
ref->min_req_bitrate, NULL);
|
|
}
|
|
|
|
g_value_init (&struct_val, GST_TYPE_STRUCTURE);
|
|
g_value_set_boxed (&struct_val, ref->structure);
|
|
gst_value_list_append_value (&list_val, &struct_val);
|
|
g_value_unset (&struct_val);
|
|
/* don't free anything here yet, since we need best->structure below */
|
|
}
|
|
|
|
g_assert (best != NULL);
|
|
s = gst_structure_copy (best->structure);
|
|
|
|
if (g_list_length (references) > 1) {
|
|
gst_structure_set_value (s, "locations", &list_val);
|
|
}
|
|
|
|
g_value_unset (&list_val);
|
|
|
|
for (l = references; l != NULL; l = l->next) {
|
|
GstQtReference *ref = (GstQtReference *) l->data;
|
|
|
|
gst_structure_free (ref->structure);
|
|
g_free (ref->location);
|
|
g_free (ref);
|
|
}
|
|
g_list_free (references);
|
|
|
|
GST_INFO_OBJECT (qtdemux, "posting redirect message: %" GST_PTR_FORMAT, s);
|
|
g_free (qtdemux->redirect_location);
|
|
qtdemux->redirect_location =
|
|
g_strdup (gst_structure_get_string (s, "new-location"));
|
|
msg = gst_message_new_element (GST_OBJECT_CAST (qtdemux), s);
|
|
gst_element_post_message (GST_ELEMENT_CAST (qtdemux), msg);
|
|
}
|
|
|
|
/* look for redirect nodes, collect all redirect information and
|
|
* process it.
|
|
*/
|
|
static gboolean
|
|
qtdemux_parse_redirects (GstQTDemux * qtdemux)
|
|
{
|
|
GNode *rmra, *rmda, *rdrf;
|
|
|
|
rmra = qtdemux_tree_get_child_by_type (qtdemux->moov_node, FOURCC_rmra);
|
|
if (rmra) {
|
|
GList *redirects = NULL;
|
|
|
|
rmda = qtdemux_tree_get_child_by_type (rmra, FOURCC_rmda);
|
|
while (rmda) {
|
|
GstQtReference ref = { NULL, NULL, 0, 0 };
|
|
GNode *rmdr, *rmvc;
|
|
|
|
if ((rmdr = qtdemux_tree_get_child_by_type (rmda, FOURCC_rmdr))) {
|
|
ref.min_req_bitrate = QT_UINT32 ((guint8 *) rmdr->data + 12);
|
|
GST_LOG_OBJECT (qtdemux, "data rate atom, required bitrate = %u",
|
|
ref.min_req_bitrate);
|
|
}
|
|
|
|
if ((rmvc = qtdemux_tree_get_child_by_type (rmda, FOURCC_rmvc))) {
|
|
guint32 package = QT_FOURCC ((guint8 *) rmvc->data + 12);
|
|
guint version = QT_UINT32 ((guint8 *) rmvc->data + 16);
|
|
|
|
#ifndef GST_DISABLE_GST_DEBUG
|
|
guint bitmask = QT_UINT32 ((guint8 *) rmvc->data + 20);
|
|
#endif
|
|
guint check_type = QT_UINT16 ((guint8 *) rmvc->data + 24);
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"version check atom [%" GST_FOURCC_FORMAT "], version=0x%08x"
|
|
", mask=%08x, check_type=%u", GST_FOURCC_ARGS (package), version,
|
|
bitmask, check_type);
|
|
if (package == FOURCC_qtim && check_type == 0) {
|
|
ref.min_req_qt_version = version;
|
|
}
|
|
}
|
|
|
|
rdrf = qtdemux_tree_get_child_by_type (rmda, FOURCC_rdrf);
|
|
if (rdrf) {
|
|
guint32 ref_type;
|
|
guint8 *ref_data;
|
|
guint ref_len;
|
|
|
|
ref_len = QT_UINT32 ((guint8 *) rdrf->data);
|
|
if (ref_len > 20) {
|
|
ref_type = QT_FOURCC ((guint8 *) rdrf->data + 12);
|
|
ref_data = (guint8 *) rdrf->data + 20;
|
|
if (ref_type == FOURCC_alis) {
|
|
guint record_len, record_version, fn_len;
|
|
|
|
if (ref_len > 70) {
|
|
/* MacOSX alias record, google for alias-layout.txt */
|
|
record_len = QT_UINT16 (ref_data + 4);
|
|
record_version = QT_UINT16 (ref_data + 4 + 2);
|
|
fn_len = QT_UINT8 (ref_data + 50);
|
|
if (record_len > 50 && record_version == 2 && fn_len > 0) {
|
|
ref.location = g_strndup ((gchar *) ref_data + 51, fn_len);
|
|
}
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "Invalid rdrf/alis size (%u < 70)",
|
|
ref_len);
|
|
}
|
|
} else if (ref_type == FOURCC_url_) {
|
|
ref.location = g_strndup ((gchar *) ref_data, ref_len - 8);
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"unknown rdrf reference type %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (ref_type));
|
|
}
|
|
if (ref.location != NULL) {
|
|
GST_INFO_OBJECT (qtdemux, "New location: %s", ref.location);
|
|
redirects =
|
|
g_list_prepend (redirects, g_memdup2 (&ref, sizeof (ref)));
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Failed to extract redirect location from rdrf atom");
|
|
}
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "Invalid rdrf size (%u < 20)", ref_len);
|
|
}
|
|
}
|
|
|
|
/* look for others */
|
|
rmda = qtdemux_tree_get_sibling_by_type (rmda, FOURCC_rmda);
|
|
}
|
|
|
|
if (redirects != NULL) {
|
|
qtdemux_process_redirects (qtdemux, redirects);
|
|
}
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static GstTagList *
|
|
qtdemux_add_container_format (GstQTDemux * qtdemux, GstTagList * tags)
|
|
{
|
|
const gchar *fmt;
|
|
|
|
if (tags == NULL) {
|
|
tags = gst_tag_list_new_empty ();
|
|
gst_tag_list_set_scope (tags, GST_TAG_SCOPE_GLOBAL);
|
|
}
|
|
|
|
if (qtdemux->major_brand == FOURCC_mjp2)
|
|
fmt = "Motion JPEG 2000";
|
|
else if ((qtdemux->major_brand & 0xffff) == FOURCC_3g__)
|
|
fmt = "3GP";
|
|
else if (qtdemux->major_brand == FOURCC_qt__)
|
|
fmt = "Quicktime";
|
|
else if (qtdemux->fragmented)
|
|
fmt = "ISO fMP4";
|
|
else
|
|
fmt = "ISO MP4/M4A";
|
|
|
|
GST_LOG_OBJECT (qtdemux, "mapped %" GST_FOURCC_FORMAT " to '%s'",
|
|
GST_FOURCC_ARGS (qtdemux->major_brand), fmt);
|
|
|
|
gst_tag_list_add (tags, GST_TAG_MERGE_REPLACE, GST_TAG_CONTAINER_FORMAT,
|
|
fmt, NULL);
|
|
|
|
return tags;
|
|
}
|
|
|
|
/* we have read the complete moov node now.
|
|
* This function parses all of the relevant info, creates the traks and
|
|
* prepares all data structures for playback
|
|
*/
|
|
static gboolean
|
|
qtdemux_parse_tree (GstQTDemux * qtdemux)
|
|
{
|
|
GNode *mvhd;
|
|
GNode *trak;
|
|
GNode *udta;
|
|
GNode *mvex;
|
|
GNode *pssh;
|
|
guint64 creation_time;
|
|
GstDateTime *datetime = NULL;
|
|
gint version;
|
|
|
|
/* make sure we have a usable taglist */
|
|
qtdemux->tag_list = gst_tag_list_make_writable (qtdemux->tag_list);
|
|
|
|
mvhd = qtdemux_tree_get_child_by_type (qtdemux->moov_node, FOURCC_mvhd);
|
|
if (mvhd == NULL) {
|
|
GST_LOG_OBJECT (qtdemux, "No mvhd node found, looking for redirects.");
|
|
return qtdemux_parse_redirects (qtdemux);
|
|
}
|
|
|
|
version = QT_UINT8 ((guint8 *) mvhd->data + 8);
|
|
if (version == 1) {
|
|
creation_time = QT_UINT64 ((guint8 *) mvhd->data + 12);
|
|
qtdemux->timescale = QT_UINT32 ((guint8 *) mvhd->data + 28);
|
|
qtdemux->duration = QT_UINT64 ((guint8 *) mvhd->data + 32);
|
|
} else if (version == 0) {
|
|
creation_time = QT_UINT32 ((guint8 *) mvhd->data + 12);
|
|
qtdemux->timescale = QT_UINT32 ((guint8 *) mvhd->data + 20);
|
|
qtdemux->duration = QT_UINT32 ((guint8 *) mvhd->data + 24);
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "Unhandled mvhd version %d", version);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Moving qt creation time (secs since 1904) to unix time */
|
|
if (creation_time != 0) {
|
|
/* Try to use epoch first as it should be faster and more commonly found */
|
|
if (creation_time >= QTDEMUX_SECONDS_FROM_1904_TO_1970) {
|
|
gint64 now_s;
|
|
|
|
creation_time -= QTDEMUX_SECONDS_FROM_1904_TO_1970;
|
|
/* some data cleansing sanity */
|
|
now_s = g_get_real_time () / G_USEC_PER_SEC;
|
|
if (now_s + 24 * 3600 < creation_time) {
|
|
GST_DEBUG_OBJECT (qtdemux, "discarding bogus future creation time");
|
|
} else {
|
|
datetime = gst_date_time_new_from_unix_epoch_utc (creation_time);
|
|
}
|
|
} else {
|
|
GDateTime *base_dt = g_date_time_new_utc (1904, 1, 1, 0, 0, 0);
|
|
GDateTime *dt, *dt_local;
|
|
|
|
dt = g_date_time_add_seconds (base_dt, creation_time);
|
|
dt_local = g_date_time_to_local (dt);
|
|
datetime = gst_date_time_new_from_g_date_time (dt_local);
|
|
|
|
g_date_time_unref (base_dt);
|
|
g_date_time_unref (dt);
|
|
}
|
|
}
|
|
if (datetime) {
|
|
/* Use KEEP as explicit tags should have a higher priority than mvhd tag */
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_KEEP, GST_TAG_DATE_TIME,
|
|
datetime, NULL);
|
|
gst_date_time_unref (datetime);
|
|
}
|
|
|
|
GST_INFO_OBJECT (qtdemux, "timescale: %u", qtdemux->timescale);
|
|
GST_INFO_OBJECT (qtdemux, "duration: %" G_GUINT64_FORMAT, qtdemux->duration);
|
|
|
|
/* check for fragmented file and get some (default) data */
|
|
mvex = qtdemux_tree_get_child_by_type (qtdemux->moov_node, FOURCC_mvex);
|
|
if (mvex) {
|
|
GNode *mehd;
|
|
GstByteReader mehd_data;
|
|
|
|
/* let track parsing or anyone know weird stuff might happen ... */
|
|
qtdemux->fragmented = TRUE;
|
|
|
|
/* compensate for total duration */
|
|
mehd = qtdemux_tree_get_child_by_type_full (mvex, FOURCC_mehd, &mehd_data);
|
|
if (mehd)
|
|
qtdemux_parse_mehd (qtdemux, &mehd_data);
|
|
}
|
|
|
|
/* Update the movie segment duration, unless it was directly given to us
|
|
* by upstream. Otherwise let it as is, as we don't want to mangle the
|
|
* duration provided by upstream that may come e.g. from a MPD file. */
|
|
if (!qtdemux->upstream_format_is_time) {
|
|
GstClockTime duration;
|
|
/* set duration in the segment info */
|
|
gst_qtdemux_get_duration (qtdemux, &duration);
|
|
qtdemux->segment.duration = duration;
|
|
/* also do not exceed duration; stop is set that way post seek anyway,
|
|
* and segment activation falls back to duration,
|
|
* whereas loop only checks stop, so let's align this here as well */
|
|
qtdemux->segment.stop = duration;
|
|
}
|
|
|
|
/* parse all traks */
|
|
trak = qtdemux_tree_get_child_by_type (qtdemux->moov_node, FOURCC_trak);
|
|
while (trak) {
|
|
qtdemux_parse_trak (qtdemux, trak);
|
|
/* iterate all siblings */
|
|
trak = qtdemux_tree_get_sibling_by_type (trak, FOURCC_trak);
|
|
}
|
|
|
|
qtdemux->tag_list = gst_tag_list_make_writable (qtdemux->tag_list);
|
|
|
|
/* find tags */
|
|
udta = qtdemux_tree_get_child_by_type (qtdemux->moov_node, FOURCC_udta);
|
|
if (udta) {
|
|
qtdemux_parse_udta (qtdemux, qtdemux->tag_list, udta);
|
|
} else {
|
|
GST_LOG_OBJECT (qtdemux, "No udta node found.");
|
|
}
|
|
|
|
/* maybe also some tags in meta box */
|
|
udta = qtdemux_tree_get_child_by_type (qtdemux->moov_node, FOURCC_meta);
|
|
if (udta) {
|
|
GST_DEBUG_OBJECT (qtdemux, "Parsing meta box for tags.");
|
|
qtdemux_parse_udta (qtdemux, qtdemux->tag_list, udta);
|
|
} else {
|
|
GST_LOG_OBJECT (qtdemux, "No meta node found.");
|
|
}
|
|
|
|
/* parse any protection system info */
|
|
pssh = qtdemux_tree_get_child_by_type (qtdemux->moov_node, FOURCC_pssh);
|
|
if (pssh) {
|
|
/* Unref old protection events if we are going to receive new ones. */
|
|
qtdemux_clear_protection_events_on_all_streams (qtdemux);
|
|
}
|
|
while (pssh) {
|
|
GST_LOG_OBJECT (qtdemux, "Parsing pssh box.");
|
|
qtdemux_parse_pssh (qtdemux, pssh);
|
|
pssh = qtdemux_tree_get_sibling_by_type (pssh, FOURCC_pssh);
|
|
}
|
|
|
|
qtdemux->tag_list = qtdemux_add_container_format (qtdemux, qtdemux->tag_list);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* taken from ffmpeg */
|
|
static int
|
|
read_descr_size (guint8 * ptr, guint8 * end, guint8 ** end_out)
|
|
{
|
|
int count = 4;
|
|
int len = 0;
|
|
|
|
while (count--) {
|
|
int c;
|
|
|
|
if (ptr >= end)
|
|
return -1;
|
|
|
|
c = *ptr++;
|
|
len = (len << 7) | (c & 0x7f);
|
|
if (!(c & 0x80))
|
|
break;
|
|
}
|
|
*end_out = ptr;
|
|
return len;
|
|
}
|
|
|
|
static GList *
|
|
parse_xiph_stream_headers (GstQTDemux * qtdemux, gpointer codec_data,
|
|
gsize codec_data_size)
|
|
{
|
|
GList *list = NULL;
|
|
guint8 *p = codec_data;
|
|
gint i, offset, num_packets;
|
|
guint *length, last;
|
|
|
|
GST_MEMDUMP_OBJECT (qtdemux, "xiph codec data", codec_data, codec_data_size);
|
|
|
|
if (codec_data == NULL || codec_data_size == 0)
|
|
goto error;
|
|
|
|
/* start of the stream and vorbis audio or theora video, need to
|
|
* send the codec_priv data as first three packets */
|
|
num_packets = p[0] + 1;
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"%u stream headers, total length=%" G_GSIZE_FORMAT " bytes",
|
|
(guint) num_packets, codec_data_size);
|
|
|
|
/* Let's put some limits, Don't think there even is a xiph codec
|
|
* with more than 3-4 headers */
|
|
if (G_UNLIKELY (num_packets > 16)) {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Unlikely number of xiph headers, most likely not valid");
|
|
goto error;
|
|
}
|
|
|
|
length = g_alloca (num_packets * sizeof (guint));
|
|
last = 0;
|
|
offset = 1;
|
|
|
|
/* first packets, read length values */
|
|
for (i = 0; i < num_packets - 1; i++) {
|
|
length[i] = 0;
|
|
while (offset < codec_data_size) {
|
|
length[i] += p[offset];
|
|
if (p[offset++] != 0xff)
|
|
break;
|
|
}
|
|
last += length[i];
|
|
}
|
|
if (offset + last > codec_data_size)
|
|
goto error;
|
|
|
|
/* last packet is the remaining size */
|
|
length[i] = codec_data_size - offset - last;
|
|
|
|
for (i = 0; i < num_packets; i++) {
|
|
GstBuffer *hdr;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "buffer %d: %u bytes", i, (guint) length[i]);
|
|
|
|
if (offset + length[i] > codec_data_size)
|
|
goto error;
|
|
|
|
hdr = gst_buffer_new_memdup (p + offset, length[i]);
|
|
list = g_list_append (list, hdr);
|
|
|
|
offset += length[i];
|
|
}
|
|
|
|
return list;
|
|
|
|
/* ERRORS */
|
|
error:
|
|
{
|
|
if (list != NULL)
|
|
g_list_free_full (list, (GDestroyNotify) gst_buffer_unref);
|
|
return NULL;
|
|
}
|
|
|
|
}
|
|
|
|
/* this can change the codec originally present in @list */
|
|
static void
|
|
gst_qtdemux_handle_esds (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
QtDemuxStreamStsdEntry * entry, GNode * esds, GstTagList * list)
|
|
{
|
|
int len = QT_UINT32 (esds->data);
|
|
guint8 *ptr = esds->data;
|
|
guint8 *end = ptr + len;
|
|
int tag;
|
|
guint8 *data_ptr = NULL;
|
|
int data_len = 0;
|
|
guint8 object_type_id = 0;
|
|
guint8 stream_type = 0;
|
|
const char *codec_name = NULL;
|
|
GstCaps *caps = NULL;
|
|
|
|
GST_MEMDUMP_OBJECT (qtdemux, "esds", ptr, len);
|
|
ptr += 8;
|
|
GST_DEBUG_OBJECT (qtdemux, "version/flags = %08x", QT_UINT32 (ptr));
|
|
ptr += 4;
|
|
while (ptr + 1 < end) {
|
|
tag = QT_UINT8 (ptr);
|
|
GST_DEBUG_OBJECT (qtdemux, "tag = %02x", tag);
|
|
ptr++;
|
|
len = read_descr_size (ptr, end, &ptr);
|
|
GST_DEBUG_OBJECT (qtdemux, "len = %d", len);
|
|
|
|
/* Check the stated amount of data is available for reading */
|
|
if (len < 0 || ptr + len > end)
|
|
break;
|
|
|
|
switch (tag) {
|
|
case ES_DESCRIPTOR_TAG:
|
|
GST_DEBUG_OBJECT (qtdemux, "ID 0x%04x", QT_UINT16 (ptr));
|
|
GST_DEBUG_OBJECT (qtdemux, "priority 0x%04x", QT_UINT8 (ptr + 2));
|
|
ptr += 3;
|
|
break;
|
|
case DECODER_CONFIG_DESC_TAG:{
|
|
guint max_bitrate, avg_bitrate;
|
|
|
|
object_type_id = QT_UINT8 (ptr);
|
|
stream_type = QT_UINT8 (ptr + 1) >> 2;
|
|
max_bitrate = QT_UINT32 (ptr + 5);
|
|
avg_bitrate = QT_UINT32 (ptr + 9);
|
|
GST_DEBUG_OBJECT (qtdemux, "object_type_id %02x", object_type_id);
|
|
GST_DEBUG_OBJECT (qtdemux, "stream_type %02x", stream_type);
|
|
GST_DEBUG_OBJECT (qtdemux, "buffer_size_db %02x", QT_UINT24 (ptr + 2));
|
|
GST_DEBUG_OBJECT (qtdemux, "max bitrate %u", max_bitrate);
|
|
GST_DEBUG_OBJECT (qtdemux, "avg bitrate %u", avg_bitrate);
|
|
if (max_bitrate > 0 && max_bitrate < G_MAXUINT32) {
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_MAXIMUM_BITRATE, max_bitrate, NULL);
|
|
}
|
|
if (avg_bitrate > 0 && avg_bitrate < G_MAXUINT32) {
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE, GST_TAG_BITRATE,
|
|
avg_bitrate, NULL);
|
|
}
|
|
ptr += 13;
|
|
break;
|
|
}
|
|
case DECODER_SPECIFIC_INFO_TAG:
|
|
GST_MEMDUMP_OBJECT (qtdemux, "data", ptr, len);
|
|
if (object_type_id == 0xe0 && len == 0x40) {
|
|
guint8 *data;
|
|
GstStructure *s;
|
|
guint32 clut[16];
|
|
gint i;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"Have VOBSUB palette. Creating palette event");
|
|
/* move to decConfigDescr data and read palette */
|
|
data = ptr;
|
|
for (i = 0; i < 16; i++) {
|
|
clut[i] = QT_UINT32 (data);
|
|
data += 4;
|
|
}
|
|
|
|
s = gst_structure_new ("application/x-gst-dvd", "event",
|
|
G_TYPE_STRING, "dvd-spu-clut-change",
|
|
"clut00", G_TYPE_INT, clut[0], "clut01", G_TYPE_INT, clut[1],
|
|
"clut02", G_TYPE_INT, clut[2], "clut03", G_TYPE_INT, clut[3],
|
|
"clut04", G_TYPE_INT, clut[4], "clut05", G_TYPE_INT, clut[5],
|
|
"clut06", G_TYPE_INT, clut[6], "clut07", G_TYPE_INT, clut[7],
|
|
"clut08", G_TYPE_INT, clut[8], "clut09", G_TYPE_INT, clut[9],
|
|
"clut10", G_TYPE_INT, clut[10], "clut11", G_TYPE_INT, clut[11],
|
|
"clut12", G_TYPE_INT, clut[12], "clut13", G_TYPE_INT, clut[13],
|
|
"clut14", G_TYPE_INT, clut[14], "clut15", G_TYPE_INT, clut[15],
|
|
NULL);
|
|
|
|
/* store event and trigger custom processing */
|
|
stream->pending_event =
|
|
gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s);
|
|
} else {
|
|
/* Generic codec_data handler puts it on the caps */
|
|
data_ptr = ptr;
|
|
data_len = len;
|
|
}
|
|
|
|
ptr += len;
|
|
break;
|
|
case SL_CONFIG_DESC_TAG:
|
|
GST_DEBUG_OBJECT (qtdemux, "data %02x", QT_UINT8 (ptr));
|
|
ptr += 1;
|
|
break;
|
|
default:
|
|
GST_DEBUG_OBJECT (qtdemux, "Unknown/unhandled descriptor tag %02x",
|
|
tag);
|
|
GST_MEMDUMP_OBJECT (qtdemux, "descriptor data", ptr, len);
|
|
ptr += len;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* object_type_id in the esds atom in mp4a and mp4v tells us which codec is
|
|
* in use, and should also be used to override some other parameters for some
|
|
* codecs. */
|
|
switch (object_type_id) {
|
|
case 0x20: /* MPEG-4 */
|
|
/* 4 bytes for the visual_object_sequence_start_code and 1 byte for the
|
|
* profile_and_level_indication */
|
|
if (data_ptr != NULL && data_len >= 5 &&
|
|
GST_READ_UINT32_BE (data_ptr) == 0x000001b0) {
|
|
gst_codec_utils_mpeg4video_caps_set_level_and_profile (entry->caps,
|
|
data_ptr + 4, data_len - 4);
|
|
}
|
|
break; /* Nothing special needed here */
|
|
case 0x21: /* H.264 */
|
|
codec_name = "H.264 / AVC";
|
|
caps = gst_caps_new_simple ("video/x-h264",
|
|
"stream-format", G_TYPE_STRING, "avc",
|
|
"alignment", G_TYPE_STRING, "au", NULL);
|
|
break;
|
|
case 0x40: /* AAC (any) */
|
|
case 0x66: /* AAC Main */
|
|
case 0x67: /* AAC LC */
|
|
case 0x68: /* AAC SSR */
|
|
/* Override channels and rate based on the codec_data, as it's often
|
|
* wrong. */
|
|
/* Only do so for basic setup without HE-AAC extension */
|
|
if (data_ptr && data_len == 2) {
|
|
guint channels, rate;
|
|
|
|
channels = gst_codec_utils_aac_get_channels (data_ptr, data_len);
|
|
if (channels > 0)
|
|
entry->n_channels = channels;
|
|
|
|
rate = gst_codec_utils_aac_get_sample_rate (data_ptr, data_len);
|
|
if (rate > 0)
|
|
entry->rate = rate;
|
|
}
|
|
|
|
/* Set level and profile if possible */
|
|
if (data_ptr != NULL && data_len >= 2) {
|
|
gst_codec_utils_aac_caps_set_level_and_profile (entry->caps,
|
|
data_ptr, data_len);
|
|
} else {
|
|
const gchar *profile_str = NULL;
|
|
GstBuffer *buffer;
|
|
GstMapInfo map;
|
|
guint8 *codec_data;
|
|
gint rate_idx, profile;
|
|
|
|
/* No codec_data, let's invent something.
|
|
* FIXME: This is wrong for SBR! */
|
|
|
|
GST_WARNING_OBJECT (qtdemux, "No codec_data for AAC available");
|
|
|
|
buffer = gst_buffer_new_and_alloc (2);
|
|
gst_buffer_map (buffer, &map, GST_MAP_WRITE);
|
|
codec_data = map.data;
|
|
|
|
rate_idx =
|
|
gst_codec_utils_aac_get_index_from_sample_rate (CUR_STREAM
|
|
(stream)->rate);
|
|
|
|
switch (object_type_id) {
|
|
case 0x66:
|
|
profile_str = "main";
|
|
profile = 0;
|
|
break;
|
|
case 0x67:
|
|
profile_str = "lc";
|
|
profile = 1;
|
|
break;
|
|
case 0x68:
|
|
profile_str = "ssr";
|
|
profile = 2;
|
|
break;
|
|
default:
|
|
profile = 3;
|
|
break;
|
|
}
|
|
|
|
codec_data[0] = ((profile + 1) << 3) | ((rate_idx & 0xE) >> 1);
|
|
codec_data[1] =
|
|
((rate_idx & 0x1) << 7) | (CUR_STREAM (stream)->n_channels << 3);
|
|
|
|
gst_buffer_unmap (buffer, &map);
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps, "codec_data",
|
|
GST_TYPE_BUFFER, buffer, NULL);
|
|
gst_buffer_unref (buffer);
|
|
|
|
if (profile_str) {
|
|
gst_caps_set_simple (CUR_STREAM (stream)->caps, "profile",
|
|
G_TYPE_STRING, profile_str, NULL);
|
|
}
|
|
}
|
|
break;
|
|
case 0x60: /* MPEG-2, various profiles */
|
|
case 0x61:
|
|
case 0x62:
|
|
case 0x63:
|
|
case 0x64:
|
|
case 0x65:
|
|
codec_name = "MPEG-2 video";
|
|
caps = gst_caps_new_simple ("video/mpeg",
|
|
"mpegversion", G_TYPE_INT, 2,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
case 0x69: /* MPEG-2 BC audio */
|
|
case 0x6B: /* MPEG-1 audio */
|
|
caps = gst_caps_new_simple ("audio/mpeg",
|
|
"mpegversion", G_TYPE_INT, 1, NULL);
|
|
codec_name = "MPEG-1 audio";
|
|
break;
|
|
case 0x6A: /* MPEG-1 */
|
|
codec_name = "MPEG-1 video";
|
|
caps = gst_caps_new_simple ("video/mpeg",
|
|
"mpegversion", G_TYPE_INT, 1,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
case 0x6C: /* MJPEG */
|
|
caps =
|
|
gst_caps_new_simple ("image/jpeg", "parsed", G_TYPE_BOOLEAN, TRUE,
|
|
NULL);
|
|
codec_name = "Motion-JPEG";
|
|
break;
|
|
case 0x6D: /* PNG */
|
|
caps =
|
|
gst_caps_new_simple ("image/png", "parsed", G_TYPE_BOOLEAN, TRUE,
|
|
NULL);
|
|
codec_name = "PNG still images";
|
|
break;
|
|
case 0x6E: /* JPEG2000 */
|
|
codec_name = "JPEG-2000";
|
|
caps = gst_caps_new_simple ("image/x-j2c", "fields", G_TYPE_INT, 1, NULL);
|
|
break;
|
|
case 0xA4: /* Dirac */
|
|
codec_name = "Dirac";
|
|
caps = gst_caps_new_empty_simple ("video/x-dirac");
|
|
break;
|
|
case 0xA5: /* AC3 */
|
|
codec_name = "AC-3 audio";
|
|
caps = gst_caps_new_simple ("audio/x-ac3",
|
|
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
break;
|
|
case 0xA9: /* AC3 */
|
|
codec_name = "DTS audio";
|
|
caps = gst_caps_new_simple ("audio/x-dts",
|
|
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
break;
|
|
case 0xDD:
|
|
if (stream_type == 0x05 && data_ptr) {
|
|
GList *headers =
|
|
parse_xiph_stream_headers (qtdemux, data_ptr, data_len);
|
|
if (headers) {
|
|
GList *tmp;
|
|
GValue arr_val = G_VALUE_INIT;
|
|
GValue buf_val = G_VALUE_INIT;
|
|
GstStructure *s;
|
|
|
|
/* Let's assume it's vorbis if it's an audio stream of type 0xdd and we have codec data that extracts properly */
|
|
codec_name = "Vorbis";
|
|
caps = gst_caps_new_empty_simple ("audio/x-vorbis");
|
|
g_value_init (&arr_val, GST_TYPE_ARRAY);
|
|
g_value_init (&buf_val, GST_TYPE_BUFFER);
|
|
for (tmp = headers; tmp; tmp = tmp->next) {
|
|
g_value_set_boxed (&buf_val, (GstBuffer *) tmp->data);
|
|
gst_value_array_append_value (&arr_val, &buf_val);
|
|
}
|
|
s = gst_caps_get_structure (caps, 0);
|
|
gst_structure_take_value (s, "streamheader", &arr_val);
|
|
g_value_unset (&buf_val);
|
|
g_list_free (headers);
|
|
|
|
data_ptr = NULL;
|
|
data_len = 0;
|
|
}
|
|
}
|
|
break;
|
|
case 0xE1: /* QCELP */
|
|
/* QCELP, the codec_data is a riff tag (little endian) with
|
|
* more info (http://ftp.3gpp2.org/TSGC/Working/2003/2003-05-SanDiego/TSG-C-2003-05-San%20Diego/WG1/SWG12/C12-20030512-006%20=%20C12-20030217-015_Draft_Baseline%20Text%20of%20FFMS_R2.doc). */
|
|
caps = gst_caps_new_empty_simple ("audio/qcelp");
|
|
codec_name = "QCELP";
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* If we have a replacement caps, then change our caps for this stream */
|
|
if (caps) {
|
|
gst_caps_unref (entry->caps);
|
|
entry->caps = caps;
|
|
}
|
|
|
|
if (codec_name && list)
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_AUDIO_CODEC, codec_name, NULL);
|
|
|
|
/* Add the codec_data attribute to caps, if we have it */
|
|
if (data_ptr) {
|
|
GstBuffer *buffer;
|
|
|
|
buffer = gst_buffer_new_and_alloc (data_len);
|
|
gst_buffer_fill (buffer, 0, data_ptr, data_len);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "setting codec_data from esds");
|
|
GST_MEMDUMP_OBJECT (qtdemux, "codec_data from esds", data_ptr, data_len);
|
|
|
|
gst_caps_set_simple (entry->caps, "codec_data", GST_TYPE_BUFFER,
|
|
buffer, NULL);
|
|
gst_buffer_unref (buffer);
|
|
}
|
|
|
|
}
|
|
|
|
static inline GstCaps *
|
|
_get_unknown_codec_name (const gchar * type, guint32 fourcc)
|
|
{
|
|
GstCaps *caps;
|
|
guint i;
|
|
char *s, fourstr[5];
|
|
|
|
g_snprintf (fourstr, 5, "%" GST_FOURCC_FORMAT, GST_FOURCC_ARGS (fourcc));
|
|
for (i = 0; i < 4; i++) {
|
|
if (!g_ascii_isalnum (fourstr[i]))
|
|
fourstr[i] = '_';
|
|
}
|
|
s = g_strdup_printf ("%s/x-gst-fourcc-%s", type, g_strstrip (fourstr));
|
|
caps = gst_caps_new_empty_simple (s);
|
|
g_free (s);
|
|
return caps;
|
|
}
|
|
|
|
#define _codec(name) \
|
|
do { \
|
|
if (codec_name) { \
|
|
*codec_name = g_strdup (name); \
|
|
} \
|
|
} while (0)
|
|
|
|
static GstCaps *
|
|
qtdemux_video_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
QtDemuxStreamStsdEntry * entry, guint32 fourcc,
|
|
const guint8 * stsd_entry_data, gchar ** codec_name)
|
|
{
|
|
GstCaps *caps = NULL;
|
|
GstVideoFormat format = GST_VIDEO_FORMAT_UNKNOWN;
|
|
|
|
switch (fourcc) {
|
|
case FOURCC_png:
|
|
_codec ("PNG still images");
|
|
caps = gst_caps_new_empty_simple ("image/png");
|
|
break;
|
|
case FOURCC_jpeg:
|
|
_codec ("JPEG still images");
|
|
caps =
|
|
gst_caps_new_simple ("image/jpeg", "parsed", G_TYPE_BOOLEAN, TRUE,
|
|
NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('m', 'j', 'p', 'a'):
|
|
case GST_MAKE_FOURCC ('A', 'V', 'D', 'J'):
|
|
case GST_MAKE_FOURCC ('M', 'J', 'P', 'G'):
|
|
case GST_MAKE_FOURCC ('d', 'm', 'b', '1'):
|
|
_codec ("Motion-JPEG");
|
|
caps =
|
|
gst_caps_new_simple ("image/jpeg", "parsed", G_TYPE_BOOLEAN, TRUE,
|
|
NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('m', 'j', 'p', 'b'):
|
|
_codec ("Motion-JPEG format B");
|
|
caps = gst_caps_new_empty_simple ("video/x-mjpeg-b");
|
|
break;
|
|
case FOURCC_mjp2:
|
|
_codec ("JPEG-2000");
|
|
/* override to what it should be according to spec, avoid palette_data */
|
|
entry->bits_per_sample = 24;
|
|
caps = gst_caps_new_simple ("image/x-j2c", "fields", G_TYPE_INT, 1, NULL);
|
|
break;
|
|
case FOURCC_SVQ3:
|
|
_codec ("Sorensen video v.3");
|
|
caps = gst_caps_new_simple ("video/x-svq",
|
|
"svqversion", G_TYPE_INT, 3, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('s', 'v', 'q', 'i'):
|
|
case GST_MAKE_FOURCC ('S', 'V', 'Q', '1'):
|
|
_codec ("Sorensen video v.1");
|
|
caps = gst_caps_new_simple ("video/x-svq",
|
|
"svqversion", G_TYPE_INT, 1, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('W', 'R', 'A', 'W'):
|
|
caps = gst_caps_new_empty_simple ("video/x-raw");
|
|
gst_caps_set_simple (caps, "format", G_TYPE_STRING, "RGB8P", NULL);
|
|
_codec ("Windows Raw RGB");
|
|
stream->alignment = 32;
|
|
break;
|
|
case FOURCC_raw_:
|
|
{
|
|
guint16 bps;
|
|
|
|
bps = QT_UINT16 (stsd_entry_data + 82);
|
|
switch (bps) {
|
|
case 15:
|
|
format = GST_VIDEO_FORMAT_RGB15;
|
|
break;
|
|
case 16:
|
|
format = GST_VIDEO_FORMAT_RGB16;
|
|
break;
|
|
case 24:
|
|
format = GST_VIDEO_FORMAT_RGB;
|
|
break;
|
|
case 32:
|
|
format = GST_VIDEO_FORMAT_ARGB;
|
|
break;
|
|
default:
|
|
/* unknown */
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case GST_MAKE_FOURCC ('y', 'v', '1', '2'):
|
|
format = GST_VIDEO_FORMAT_I420;
|
|
break;
|
|
case GST_MAKE_FOURCC ('y', 'u', 'v', '2'):
|
|
case GST_MAKE_FOURCC ('Y', 'u', 'v', '2'):
|
|
format = GST_VIDEO_FORMAT_I420;
|
|
break;
|
|
case FOURCC_2vuy:
|
|
case GST_MAKE_FOURCC ('2', 'V', 'u', 'y'):
|
|
format = GST_VIDEO_FORMAT_UYVY;
|
|
break;
|
|
case GST_MAKE_FOURCC ('v', '3', '0', '8'):
|
|
format = GST_VIDEO_FORMAT_v308;
|
|
break;
|
|
case GST_MAKE_FOURCC ('v', '2', '1', '6'):
|
|
format = GST_VIDEO_FORMAT_v216;
|
|
break;
|
|
case FOURCC_v210:
|
|
format = GST_VIDEO_FORMAT_v210;
|
|
break;
|
|
case GST_MAKE_FOURCC ('r', '2', '1', '0'):
|
|
format = GST_VIDEO_FORMAT_r210;
|
|
break;
|
|
/* Packed YUV 4:4:4 10 bit in 32 bits, complex
|
|
case GST_MAKE_FOURCC ('v', '4', '1', '0'):
|
|
format = GST_VIDEO_FORMAT_v410;
|
|
break;
|
|
*/
|
|
/* Packed YUV 4:4:4:4 8 bit in 32 bits
|
|
* but different order than AYUV
|
|
case GST_MAKE_FOURCC ('v', '4', '0', '8'):
|
|
format = GST_VIDEO_FORMAT_v408;
|
|
break;
|
|
*/
|
|
case GST_MAKE_FOURCC ('m', 'p', 'e', 'g'):
|
|
case GST_MAKE_FOURCC ('m', 'p', 'g', '1'):
|
|
_codec ("MPEG-1 video");
|
|
caps = gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 1,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', '1'): /* HDV 720p30 */
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', '2'): /* HDV 1080i60 */
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', '3'): /* HDV 1080i50 */
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', '4'): /* HDV 720p24 */
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', '5'): /* HDV 720p25 */
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', '6'): /* HDV 1080p24 */
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', '7'): /* HDV 1080p25 */
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', '8'): /* HDV 1080p30 */
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', '9'): /* HDV 720p60 */
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', 'a'): /* HDV 720p50 */
|
|
case GST_MAKE_FOURCC ('m', 'x', '5', 'n'): /* MPEG2 IMX NTSC 525/60 50mb/s produced by FCP */
|
|
case GST_MAKE_FOURCC ('m', 'x', '5', 'p'): /* MPEG2 IMX PAL 625/60 50mb/s produced by FCP */
|
|
case GST_MAKE_FOURCC ('m', 'x', '4', 'n'): /* MPEG2 IMX NTSC 525/60 40mb/s produced by FCP */
|
|
case GST_MAKE_FOURCC ('m', 'x', '4', 'p'): /* MPEG2 IMX PAL 625/60 40mb/s produced by FCP */
|
|
case GST_MAKE_FOURCC ('m', 'x', '3', 'n'): /* MPEG2 IMX NTSC 525/60 30mb/s produced by FCP */
|
|
case GST_MAKE_FOURCC ('m', 'x', '3', 'p'): /* MPEG2 IMX PAL 625/50 30mb/s produced by FCP */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', '1'): /* XDCAM HD 720p30 35Mb/s */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', '2'): /* XDCAM HD 1080i60 35Mb/s */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', '3'): /* XDCAM HD 1080i50 35Mb/s */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', '4'): /* XDCAM HD 720p24 35Mb/s */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', '5'): /* XDCAM HD 720p25 35Mb/s */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', '6'): /* XDCAM HD 1080p24 35Mb/s */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', '7'): /* XDCAM HD 1080p25 35Mb/s */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', '8'): /* XDCAM HD 1080p30 35Mb/s */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', '9'): /* XDCAM HD 720p60 35Mb/s */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', 'a'): /* XDCAM HD 720p50 35Mb/s */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', 'b'): /* XDCAM EX 1080i60 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', 'c'): /* XDCAM EX 1080i50 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', 'd'): /* XDCAM HD 1080p24 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', 'e'): /* XDCAM HD 1080p25 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'v', 'f'): /* XDCAM HD 1080p30 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', '5', '1'): /* XDCAM HD422 720p30 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', '5', '4'): /* XDCAM HD422 720p24 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', '5', '5'): /* XDCAM HD422 720p25 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', '5', '9'): /* XDCAM HD422 720p60 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', '5', 'a'): /* XDCAM HD422 720p50 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', '5', 'b'): /* XDCAM HD422 1080i50 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', '5', 'c'): /* XDCAM HD422 1080i50 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', '5', 'd'): /* XDCAM HD422 1080p24 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', '5', 'e'): /* XDCAM HD422 1080p25 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', '5', 'f'): /* XDCAM HD422 1080p30 50Mb/s CBR */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'h', 'd'): /* XDCAM HD 540p */
|
|
case GST_MAKE_FOURCC ('x', 'd', 'h', '2'): /* XDCAM HD422 540p */
|
|
case GST_MAKE_FOURCC ('A', 'V', 'm', 'p'): /* AVID IMX PAL */
|
|
case GST_MAKE_FOURCC ('m', 'p', 'g', '2'): /* AVID IMX PAL */
|
|
case GST_MAKE_FOURCC ('m', 'p', '2', 'v'): /* AVID IMX PAL */
|
|
case GST_MAKE_FOURCC ('m', '2', 'v', '1'):
|
|
_codec ("MPEG-2 video");
|
|
caps = gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 2,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('g', 'i', 'f', ' '):
|
|
_codec ("GIF still images");
|
|
caps = gst_caps_new_empty_simple ("image/gif");
|
|
break;
|
|
case FOURCC_h263:
|
|
case GST_MAKE_FOURCC ('H', '2', '6', '3'):
|
|
case FOURCC_s263:
|
|
case GST_MAKE_FOURCC ('U', '2', '6', '3'):
|
|
_codec ("H.263");
|
|
/* ffmpeg uses the height/width props, don't know why */
|
|
caps = gst_caps_new_simple ("video/x-h263",
|
|
"variant", G_TYPE_STRING, "itu", NULL);
|
|
break;
|
|
case FOURCC_mp4v:
|
|
case FOURCC_MP4V:
|
|
_codec ("MPEG-4 video");
|
|
caps = gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 4,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('3', 'i', 'v', 'd'):
|
|
case GST_MAKE_FOURCC ('3', 'I', 'V', 'D'):
|
|
_codec ("Microsoft MPEG-4 4.3"); /* FIXME? */
|
|
caps = gst_caps_new_simple ("video/x-msmpeg",
|
|
"msmpegversion", G_TYPE_INT, 43, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('D', 'I', 'V', '3'):
|
|
_codec ("DivX 3");
|
|
caps = gst_caps_new_simple ("video/x-divx",
|
|
"divxversion", G_TYPE_INT, 3, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('D', 'I', 'V', 'X'):
|
|
case GST_MAKE_FOURCC ('d', 'i', 'v', 'x'):
|
|
_codec ("DivX 4");
|
|
caps = gst_caps_new_simple ("video/x-divx",
|
|
"divxversion", G_TYPE_INT, 4, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('D', 'X', '5', '0'):
|
|
_codec ("DivX 5");
|
|
caps = gst_caps_new_simple ("video/x-divx",
|
|
"divxversion", G_TYPE_INT, 5, NULL);
|
|
break;
|
|
|
|
case GST_MAKE_FOURCC ('F', 'F', 'V', '1'):
|
|
_codec ("FFV1");
|
|
caps = gst_caps_new_simple ("video/x-ffv",
|
|
"ffvversion", G_TYPE_INT, 1, NULL);
|
|
break;
|
|
|
|
case GST_MAKE_FOURCC ('3', 'I', 'V', '1'):
|
|
case GST_MAKE_FOURCC ('3', 'I', 'V', '2'):
|
|
case FOURCC_XVID:
|
|
case FOURCC_xvid:
|
|
case FOURCC_FMP4:
|
|
case FOURCC_fmp4:
|
|
case GST_MAKE_FOURCC ('U', 'M', 'P', '4'):
|
|
caps = gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 4,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
_codec ("MPEG-4");
|
|
break;
|
|
|
|
case GST_MAKE_FOURCC ('c', 'v', 'i', 'd'):
|
|
_codec ("Cinepak");
|
|
caps = gst_caps_new_empty_simple ("video/x-cinepak");
|
|
break;
|
|
case GST_MAKE_FOURCC ('q', 'd', 'r', 'w'):
|
|
_codec ("Apple QuickDraw");
|
|
caps = gst_caps_new_empty_simple ("video/x-qdrw");
|
|
break;
|
|
case GST_MAKE_FOURCC ('r', 'p', 'z', 'a'):
|
|
_codec ("Apple video");
|
|
caps = gst_caps_new_empty_simple ("video/x-apple-video");
|
|
break;
|
|
case FOURCC_H264:
|
|
case FOURCC_avc1:
|
|
case FOURCC_dva1:
|
|
_codec ("H.264 / AVC");
|
|
caps = gst_caps_new_simple ("video/x-h264",
|
|
"stream-format", G_TYPE_STRING, "avc",
|
|
"alignment", G_TYPE_STRING, "au", NULL);
|
|
break;
|
|
case FOURCC_avc3:
|
|
case FOURCC_dvav:
|
|
_codec ("H.264 / AVC");
|
|
caps = gst_caps_new_simple ("video/x-h264",
|
|
"stream-format", G_TYPE_STRING, "avc3",
|
|
"alignment", G_TYPE_STRING, "au", NULL);
|
|
break;
|
|
case FOURCC_ai12:
|
|
case FOURCC_ai13:
|
|
case FOURCC_ai15:
|
|
case FOURCC_ai16:
|
|
case FOURCC_ai1p:
|
|
case FOURCC_ai1q:
|
|
case FOURCC_ai52:
|
|
case FOURCC_ai53:
|
|
case FOURCC_ai55:
|
|
case FOURCC_ai56:
|
|
case FOURCC_ai5p:
|
|
case FOURCC_ai5q:
|
|
_codec ("H.264 / AVC");
|
|
caps = gst_caps_new_simple ("video/x-h264",
|
|
"stream-format", G_TYPE_STRING, "byte-stream",
|
|
"alignment", G_TYPE_STRING, "au", NULL);
|
|
break;
|
|
case FOURCC_H265:
|
|
case FOURCC_hvc1:
|
|
case FOURCC_dvh1:
|
|
_codec ("H.265 / HEVC");
|
|
caps = gst_caps_new_simple ("video/x-h265",
|
|
"stream-format", G_TYPE_STRING, "hvc1",
|
|
"alignment", G_TYPE_STRING, "au", NULL);
|
|
break;
|
|
case FOURCC_hev1:
|
|
case FOURCC_dvhe:
|
|
_codec ("H.265 / HEVC");
|
|
caps = gst_caps_new_simple ("video/x-h265",
|
|
"stream-format", G_TYPE_STRING, "hev1",
|
|
"alignment", G_TYPE_STRING, "au", NULL);
|
|
break;
|
|
case FOURCC_rle_:
|
|
_codec ("Run-length encoding");
|
|
caps = gst_caps_new_simple ("video/x-rle",
|
|
"layout", G_TYPE_STRING, "quicktime", NULL);
|
|
break;
|
|
case FOURCC_WRLE:
|
|
_codec ("Run-length encoding");
|
|
caps = gst_caps_new_simple ("video/x-rle",
|
|
"layout", G_TYPE_STRING, "microsoft", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('I', 'V', '3', '2'):
|
|
case GST_MAKE_FOURCC ('i', 'v', '3', '2'):
|
|
_codec ("Indeo Video 3");
|
|
caps = gst_caps_new_simple ("video/x-indeo",
|
|
"indeoversion", G_TYPE_INT, 3, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('I', 'V', '4', '1'):
|
|
case GST_MAKE_FOURCC ('i', 'v', '4', '1'):
|
|
_codec ("Intel Video 4");
|
|
caps = gst_caps_new_simple ("video/x-indeo",
|
|
"indeoversion", G_TYPE_INT, 4, NULL);
|
|
break;
|
|
case FOURCC_dvcp:
|
|
case FOURCC_dvc_:
|
|
case GST_MAKE_FOURCC ('d', 'v', 's', 'd'):
|
|
case GST_MAKE_FOURCC ('D', 'V', 'S', 'D'):
|
|
case GST_MAKE_FOURCC ('d', 'v', 'c', 's'):
|
|
case GST_MAKE_FOURCC ('D', 'V', 'C', 'S'):
|
|
case GST_MAKE_FOURCC ('d', 'v', '2', '5'):
|
|
case GST_MAKE_FOURCC ('d', 'v', 'p', 'p'):
|
|
_codec ("DV Video");
|
|
caps = gst_caps_new_simple ("video/x-dv", "dvversion", G_TYPE_INT, 25,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
case FOURCC_dv5n: /* DVCPRO50 NTSC */
|
|
case FOURCC_dv5p: /* DVCPRO50 PAL */
|
|
_codec ("DVCPro50 Video");
|
|
caps = gst_caps_new_simple ("video/x-dv", "dvversion", G_TYPE_INT, 50,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('d', 'v', 'h', '5'): /* DVCPRO HD 50i produced by FCP */
|
|
case GST_MAKE_FOURCC ('d', 'v', 'h', '6'): /* DVCPRO HD 60i produced by FCP */
|
|
_codec ("DVCProHD Video");
|
|
caps = gst_caps_new_simple ("video/x-dv", "dvversion", G_TYPE_INT, 100,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('s', 'm', 'c', ' '):
|
|
_codec ("Apple Graphics (SMC)");
|
|
caps = gst_caps_new_empty_simple ("video/x-smc");
|
|
break;
|
|
case GST_MAKE_FOURCC ('V', 'P', '3', '1'):
|
|
_codec ("VP3");
|
|
caps = gst_caps_new_empty_simple ("video/x-vp3");
|
|
break;
|
|
case GST_MAKE_FOURCC ('V', 'P', '6', 'F'):
|
|
_codec ("VP6 Flash");
|
|
caps = gst_caps_new_empty_simple ("video/x-vp6-flash");
|
|
break;
|
|
case FOURCC_XiTh:
|
|
_codec ("Theora");
|
|
caps = gst_caps_new_empty_simple ("video/x-theora");
|
|
/* theora uses one byte of padding in the data stream because it does not
|
|
* allow 0 sized packets while theora does */
|
|
entry->padding = 1;
|
|
break;
|
|
case FOURCC_drac:
|
|
_codec ("Dirac");
|
|
caps = gst_caps_new_empty_simple ("video/x-dirac");
|
|
break;
|
|
case GST_MAKE_FOURCC ('t', 'i', 'f', 'f'):
|
|
_codec ("TIFF still images");
|
|
caps = gst_caps_new_empty_simple ("image/tiff");
|
|
break;
|
|
case GST_MAKE_FOURCC ('i', 'c', 'o', 'd'):
|
|
_codec ("Apple Intermediate Codec");
|
|
caps = gst_caps_from_string ("video/x-apple-intermediate-codec");
|
|
break;
|
|
case GST_MAKE_FOURCC ('A', 'V', 'd', 'n'):
|
|
_codec ("AVID DNxHD");
|
|
caps = gst_caps_from_string ("video/x-dnxhd");
|
|
break;
|
|
case FOURCC_VP80:
|
|
case FOURCC_vp08:
|
|
_codec ("On2 VP8");
|
|
caps = gst_caps_from_string ("video/x-vp8");
|
|
break;
|
|
case FOURCC_vp09:
|
|
_codec ("Google VP9");
|
|
caps = gst_caps_from_string ("video/x-vp9");
|
|
break;
|
|
case FOURCC_apcs:
|
|
_codec ("Apple ProRes LT");
|
|
caps =
|
|
gst_caps_new_simple ("video/x-prores", "variant", G_TYPE_STRING, "lt",
|
|
NULL);
|
|
break;
|
|
case FOURCC_apch:
|
|
_codec ("Apple ProRes HQ");
|
|
caps =
|
|
gst_caps_new_simple ("video/x-prores", "variant", G_TYPE_STRING, "hq",
|
|
NULL);
|
|
break;
|
|
case FOURCC_apcn:
|
|
_codec ("Apple ProRes");
|
|
caps =
|
|
gst_caps_new_simple ("video/x-prores", "variant", G_TYPE_STRING,
|
|
"standard", NULL);
|
|
break;
|
|
case FOURCC_apco:
|
|
_codec ("Apple ProRes Proxy");
|
|
caps =
|
|
gst_caps_new_simple ("video/x-prores", "variant", G_TYPE_STRING,
|
|
"proxy", NULL);
|
|
break;
|
|
case FOURCC_ap4h:
|
|
_codec ("Apple ProRes 4444");
|
|
caps =
|
|
gst_caps_new_simple ("video/x-prores", "variant", G_TYPE_STRING,
|
|
"4444", NULL);
|
|
|
|
/* 24 bits per sample = an alpha channel is coded but image is always opaque */
|
|
if (entry->bits_per_sample > 0) {
|
|
gst_caps_set_simple (caps, "depth", G_TYPE_INT, entry->bits_per_sample,
|
|
NULL);
|
|
}
|
|
break;
|
|
case FOURCC_ap4x:
|
|
_codec ("Apple ProRes 4444 XQ");
|
|
caps =
|
|
gst_caps_new_simple ("video/x-prores", "variant", G_TYPE_STRING,
|
|
"4444xq", NULL);
|
|
|
|
/* 24 bits per sample = an alpha channel is coded but image is always opaque */
|
|
if (entry->bits_per_sample > 0) {
|
|
gst_caps_set_simple (caps, "depth", G_TYPE_INT, entry->bits_per_sample,
|
|
NULL);
|
|
}
|
|
break;
|
|
case FOURCC_cfhd:
|
|
_codec ("GoPro CineForm");
|
|
caps = gst_caps_from_string ("video/x-cineform");
|
|
break;
|
|
case FOURCC_vc_1:
|
|
case FOURCC_ovc1:
|
|
_codec ("VC-1");
|
|
caps = gst_caps_new_simple ("video/x-wmv",
|
|
"wmvversion", G_TYPE_INT, 3, "format", G_TYPE_STRING, "WVC1", NULL);
|
|
break;
|
|
case FOURCC_av01:
|
|
_codec ("AV1");
|
|
caps = gst_caps_new_simple ("video/x-av1",
|
|
"stream-format", G_TYPE_STRING, "obu-stream",
|
|
"alignment", G_TYPE_STRING, "tu", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('k', 'p', 'c', 'd'):
|
|
default:
|
|
{
|
|
caps = _get_unknown_codec_name ("video", fourcc);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (format != GST_VIDEO_FORMAT_UNKNOWN) {
|
|
GstVideoInfo info;
|
|
|
|
gst_video_info_init (&info);
|
|
gst_video_info_set_format (&info, format, entry->width, entry->height);
|
|
|
|
caps = gst_video_info_to_caps (&info);
|
|
*codec_name = gst_pb_utils_get_codec_description (caps);
|
|
|
|
/* enable clipping for raw video streams */
|
|
stream->need_clip = TRUE;
|
|
stream->alignment = 32;
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
static guint
|
|
round_up_pow2 (guint n)
|
|
{
|
|
n = n - 1;
|
|
n = n | (n >> 1);
|
|
n = n | (n >> 2);
|
|
n = n | (n >> 4);
|
|
n = n | (n >> 8);
|
|
n = n | (n >> 16);
|
|
return n + 1;
|
|
}
|
|
|
|
static GstCaps *
|
|
qtdemux_audio_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
QtDemuxStreamStsdEntry * entry, guint32 fourcc, const guint8 * data,
|
|
int len, gchar ** codec_name)
|
|
{
|
|
GstCaps *caps;
|
|
const GstStructure *s;
|
|
const gchar *name;
|
|
gint endian = 0;
|
|
GstAudioFormat format = 0;
|
|
gint depth;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "resolve fourcc 0x%08x", GUINT32_TO_BE (fourcc));
|
|
|
|
depth = entry->bytes_per_packet * 8;
|
|
|
|
switch (fourcc) {
|
|
case GST_MAKE_FOURCC ('N', 'O', 'N', 'E'):
|
|
case FOURCC_raw_:
|
|
/* 8-bit audio is unsigned */
|
|
if (depth == 8)
|
|
format = GST_AUDIO_FORMAT_U8;
|
|
/* otherwise it's signed and big-endian just like 'twos' */
|
|
case FOURCC_twos:
|
|
endian = G_BIG_ENDIAN;
|
|
/* fall-through */
|
|
case FOURCC_sowt:
|
|
{
|
|
gchar *str;
|
|
|
|
if (!endian)
|
|
endian = G_LITTLE_ENDIAN;
|
|
|
|
if (!format)
|
|
format = gst_audio_format_build_integer (TRUE, endian, depth, depth);
|
|
|
|
str = g_strdup_printf ("Raw %d-bit PCM audio", depth);
|
|
_codec (str);
|
|
g_free (str);
|
|
|
|
caps = gst_caps_new_simple ("audio/x-raw",
|
|
"format", G_TYPE_STRING, gst_audio_format_to_string (format),
|
|
"layout", G_TYPE_STRING, "interleaved", NULL);
|
|
stream->alignment = GST_ROUND_UP_8 (depth);
|
|
stream->alignment = round_up_pow2 (stream->alignment);
|
|
break;
|
|
}
|
|
case FOURCC_fl64:
|
|
_codec ("Raw 64-bit floating-point audio");
|
|
/* we assume BIG ENDIAN, an enda box will tell us to change this to little
|
|
* endian later */
|
|
caps = gst_caps_new_simple ("audio/x-raw",
|
|
"format", G_TYPE_STRING, "F64BE",
|
|
"layout", G_TYPE_STRING, "interleaved", NULL);
|
|
stream->alignment = 8;
|
|
break;
|
|
case FOURCC_fl32:
|
|
_codec ("Raw 32-bit floating-point audio");
|
|
/* we assume BIG ENDIAN, an enda box will tell us to change this to little
|
|
* endian later */
|
|
caps = gst_caps_new_simple ("audio/x-raw",
|
|
"format", G_TYPE_STRING, "F32BE",
|
|
"layout", G_TYPE_STRING, "interleaved", NULL);
|
|
stream->alignment = 4;
|
|
break;
|
|
case FOURCC_in24:
|
|
_codec ("Raw 24-bit PCM audio");
|
|
/* we assume BIG ENDIAN, an enda box will tell us to change this to little
|
|
* endian later */
|
|
caps = gst_caps_new_simple ("audio/x-raw",
|
|
"format", G_TYPE_STRING, "S24BE",
|
|
"layout", G_TYPE_STRING, "interleaved", NULL);
|
|
stream->alignment = 4;
|
|
break;
|
|
case FOURCC_in32:
|
|
_codec ("Raw 32-bit PCM audio");
|
|
/* we assume BIG ENDIAN, an enda box will tell us to change this to little
|
|
* endian later */
|
|
caps = gst_caps_new_simple ("audio/x-raw",
|
|
"format", G_TYPE_STRING, "S32BE",
|
|
"layout", G_TYPE_STRING, "interleaved", NULL);
|
|
stream->alignment = 4;
|
|
break;
|
|
case FOURCC_s16l:
|
|
_codec ("Raw 16-bit PCM audio");
|
|
caps = gst_caps_new_simple ("audio/x-raw",
|
|
"format", G_TYPE_STRING, "S16LE",
|
|
"layout", G_TYPE_STRING, "interleaved", NULL);
|
|
stream->alignment = 2;
|
|
break;
|
|
case FOURCC_ulaw:
|
|
_codec ("Mu-law audio");
|
|
caps = gst_caps_new_empty_simple ("audio/x-mulaw");
|
|
break;
|
|
case FOURCC_alaw:
|
|
_codec ("A-law audio");
|
|
caps = gst_caps_new_empty_simple ("audio/x-alaw");
|
|
break;
|
|
case 0x0200736d:
|
|
case 0x6d730002:
|
|
_codec ("Microsoft ADPCM");
|
|
/* Microsoft ADPCM-ACM code 2 */
|
|
caps = gst_caps_new_simple ("audio/x-adpcm",
|
|
"layout", G_TYPE_STRING, "microsoft", NULL);
|
|
break;
|
|
case 0x1100736d:
|
|
case 0x6d730011:
|
|
_codec ("DVI/IMA ADPCM");
|
|
caps = gst_caps_new_simple ("audio/x-adpcm",
|
|
"layout", G_TYPE_STRING, "dvi", NULL);
|
|
break;
|
|
case 0x1700736d:
|
|
case 0x6d730017:
|
|
_codec ("DVI/Intel IMA ADPCM");
|
|
/* FIXME DVI/Intel IMA ADPCM/ACM code 17 */
|
|
caps = gst_caps_new_simple ("audio/x-adpcm",
|
|
"layout", G_TYPE_STRING, "quicktime", NULL);
|
|
break;
|
|
case 0x5500736d:
|
|
case 0x6d730055:
|
|
/* MPEG layer 3, CBR only (pre QT4.1) */
|
|
case FOURCC__mp3:
|
|
case FOURCC_mp3_:
|
|
_codec ("MPEG-1 layer 3");
|
|
/* MPEG layer 3, CBR & VBR (QT4.1 and later) */
|
|
caps = gst_caps_new_simple ("audio/mpeg", "layer", G_TYPE_INT, 3,
|
|
"mpegversion", G_TYPE_INT, 1, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('.', 'm', 'p', '2'):
|
|
_codec ("MPEG-1 layer 2");
|
|
/* MPEG layer 2 */
|
|
caps = gst_caps_new_simple ("audio/mpeg", "layer", G_TYPE_INT, 2,
|
|
"mpegversion", G_TYPE_INT, 1, NULL);
|
|
break;
|
|
case 0x20736d:
|
|
case GST_MAKE_FOURCC ('e', 'c', '-', '3'):
|
|
_codec ("EAC-3 audio");
|
|
caps = gst_caps_new_simple ("audio/x-eac3",
|
|
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
entry->sampled = TRUE;
|
|
break;
|
|
case GST_MAKE_FOURCC ('s', 'a', 'c', '3'): // Nero Recode
|
|
case FOURCC_ac_3:
|
|
_codec ("AC-3 audio");
|
|
caps = gst_caps_new_simple ("audio/x-ac3",
|
|
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
entry->sampled = TRUE;
|
|
break;
|
|
case GST_MAKE_FOURCC ('d', 't', 's', 'c'):
|
|
case GST_MAKE_FOURCC ('D', 'T', 'S', ' '):
|
|
_codec ("DTS audio");
|
|
caps = gst_caps_new_simple ("audio/x-dts",
|
|
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
entry->sampled = TRUE;
|
|
break;
|
|
case GST_MAKE_FOURCC ('d', 't', 's', 'h'): // DTS-HD
|
|
case GST_MAKE_FOURCC ('d', 't', 's', 'l'): // DTS-HD Lossless
|
|
_codec ("DTS-HD audio");
|
|
caps = gst_caps_new_simple ("audio/x-dts",
|
|
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
entry->sampled = TRUE;
|
|
break;
|
|
case FOURCC_MAC3:
|
|
_codec ("MACE-3");
|
|
caps = gst_caps_new_simple ("audio/x-mace",
|
|
"maceversion", G_TYPE_INT, 3, NULL);
|
|
break;
|
|
case FOURCC_MAC6:
|
|
_codec ("MACE-6");
|
|
caps = gst_caps_new_simple ("audio/x-mace",
|
|
"maceversion", G_TYPE_INT, 6, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('O', 'g', 'g', 'V'):
|
|
/* ogg/vorbis */
|
|
caps = gst_caps_new_empty_simple ("application/ogg");
|
|
break;
|
|
case GST_MAKE_FOURCC ('d', 'v', 'c', 'a'):
|
|
_codec ("DV audio");
|
|
caps = gst_caps_new_empty_simple ("audio/x-dv");
|
|
break;
|
|
case FOURCC_mp4a:
|
|
_codec ("MPEG-4 AAC audio");
|
|
caps = gst_caps_new_simple ("audio/mpeg",
|
|
"mpegversion", G_TYPE_INT, 4, "framed", G_TYPE_BOOLEAN, TRUE,
|
|
"stream-format", G_TYPE_STRING, "raw", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('Q', 'D', 'M', 'C'):
|
|
_codec ("QDesign Music");
|
|
caps = gst_caps_new_empty_simple ("audio/x-qdm");
|
|
break;
|
|
case FOURCC_QDM2:
|
|
_codec ("QDesign Music v.2");
|
|
/* FIXME: QDesign music version 2 (no constant) */
|
|
if (FALSE && data) {
|
|
caps = gst_caps_new_simple ("audio/x-qdm2",
|
|
"framesize", G_TYPE_INT, QT_UINT32 (data + 52),
|
|
"bitrate", G_TYPE_INT, QT_UINT32 (data + 40),
|
|
"blocksize", G_TYPE_INT, QT_UINT32 (data + 44), NULL);
|
|
} else {
|
|
caps = gst_caps_new_empty_simple ("audio/x-qdm2");
|
|
}
|
|
break;
|
|
case FOURCC_agsm:
|
|
_codec ("GSM audio");
|
|
caps = gst_caps_new_empty_simple ("audio/x-gsm");
|
|
break;
|
|
case FOURCC_samr:
|
|
_codec ("AMR audio");
|
|
caps = gst_caps_new_empty_simple ("audio/AMR");
|
|
break;
|
|
case FOURCC_sawb:
|
|
_codec ("AMR-WB audio");
|
|
caps = gst_caps_new_empty_simple ("audio/AMR-WB");
|
|
break;
|
|
case FOURCC_ima4:
|
|
_codec ("Quicktime IMA ADPCM");
|
|
caps = gst_caps_new_simple ("audio/x-adpcm",
|
|
"layout", G_TYPE_STRING, "quicktime", NULL);
|
|
break;
|
|
case FOURCC_alac:
|
|
_codec ("Apple lossless audio");
|
|
caps = gst_caps_new_empty_simple ("audio/x-alac");
|
|
break;
|
|
case FOURCC_fLaC:
|
|
_codec ("Free Lossless Audio Codec");
|
|
caps = gst_caps_new_simple ("audio/x-flac",
|
|
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('Q', 'c', 'l', 'p'):
|
|
_codec ("QualComm PureVoice");
|
|
caps = gst_caps_from_string ("audio/qcelp");
|
|
break;
|
|
case FOURCC_wma_:
|
|
case FOURCC_owma:
|
|
_codec ("WMA");
|
|
caps = gst_caps_new_empty_simple ("audio/x-wma");
|
|
break;
|
|
case FOURCC_opus:
|
|
_codec ("Opus");
|
|
caps = gst_caps_new_empty_simple ("audio/x-opus");
|
|
break;
|
|
case FOURCC_lpcm:
|
|
{
|
|
guint32 flags = 0;
|
|
guint32 depth = 0;
|
|
guint32 width = 0;
|
|
GstAudioFormat format;
|
|
enum
|
|
{
|
|
FLAG_IS_FLOAT = 0x1,
|
|
FLAG_IS_BIG_ENDIAN = 0x2,
|
|
FLAG_IS_SIGNED = 0x4,
|
|
FLAG_IS_PACKED = 0x8,
|
|
FLAG_IS_ALIGNED_HIGH = 0x10,
|
|
FLAG_IS_NON_INTERLEAVED = 0x20
|
|
};
|
|
_codec ("Raw LPCM audio");
|
|
|
|
if (data && len >= 36) {
|
|
depth = QT_UINT32 (data + 24);
|
|
flags = QT_UINT32 (data + 28);
|
|
width = QT_UINT32 (data + 32) * 8 / entry->n_channels;
|
|
}
|
|
if ((flags & FLAG_IS_FLOAT) == 0) {
|
|
if (depth == 0)
|
|
depth = 16;
|
|
if (width == 0)
|
|
width = 16;
|
|
if ((flags & FLAG_IS_ALIGNED_HIGH))
|
|
depth = width;
|
|
|
|
format = gst_audio_format_build_integer ((flags & FLAG_IS_SIGNED) ?
|
|
TRUE : FALSE, (flags & FLAG_IS_BIG_ENDIAN) ?
|
|
G_BIG_ENDIAN : G_LITTLE_ENDIAN, width, depth);
|
|
caps = gst_caps_new_simple ("audio/x-raw",
|
|
"format", G_TYPE_STRING,
|
|
format !=
|
|
GST_AUDIO_FORMAT_UNKNOWN ? gst_audio_format_to_string (format) :
|
|
"UNKNOWN", "layout", G_TYPE_STRING,
|
|
(flags & FLAG_IS_NON_INTERLEAVED) ? "non-interleaved" :
|
|
"interleaved", NULL);
|
|
stream->alignment = GST_ROUND_UP_8 (depth);
|
|
stream->alignment = round_up_pow2 (stream->alignment);
|
|
} else {
|
|
if (width == 0)
|
|
width = 32;
|
|
if (width == 64) {
|
|
if (flags & FLAG_IS_BIG_ENDIAN)
|
|
format = GST_AUDIO_FORMAT_F64BE;
|
|
else
|
|
format = GST_AUDIO_FORMAT_F64LE;
|
|
} else {
|
|
if (flags & FLAG_IS_BIG_ENDIAN)
|
|
format = GST_AUDIO_FORMAT_F32BE;
|
|
else
|
|
format = GST_AUDIO_FORMAT_F32LE;
|
|
}
|
|
caps = gst_caps_new_simple ("audio/x-raw",
|
|
"format", G_TYPE_STRING, gst_audio_format_to_string (format),
|
|
"layout", G_TYPE_STRING, (flags & FLAG_IS_NON_INTERLEAVED) ?
|
|
"non-interleaved" : "interleaved", NULL);
|
|
stream->alignment = width / 8;
|
|
}
|
|
break;
|
|
}
|
|
case GST_MAKE_FOURCC ('a', 'c', '-', '4'):
|
|
{
|
|
_codec ("AC4");
|
|
caps = gst_caps_new_empty_simple ("audio/x-ac4");
|
|
break;
|
|
}
|
|
case GST_MAKE_FOURCC ('q', 't', 'v', 'r'):
|
|
/* ? */
|
|
default:
|
|
{
|
|
caps = _get_unknown_codec_name ("audio", fourcc);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (caps) {
|
|
GstCaps *templ_caps =
|
|
gst_static_pad_template_get_caps (&gst_qtdemux_audiosrc_template);
|
|
GstCaps *intersection = gst_caps_intersect (caps, templ_caps);
|
|
gst_caps_unref (caps);
|
|
gst_caps_unref (templ_caps);
|
|
caps = intersection;
|
|
}
|
|
|
|
/* enable clipping for raw audio streams */
|
|
s = gst_caps_get_structure (caps, 0);
|
|
name = gst_structure_get_name (s);
|
|
if (g_str_has_prefix (name, "audio/x-raw")) {
|
|
stream->need_clip = TRUE;
|
|
stream->min_buffer_size = 1024 * entry->bytes_per_frame;
|
|
stream->max_buffer_size = entry->rate * entry->bytes_per_frame;
|
|
GST_DEBUG ("setting min/max buffer sizes to %d/%d", stream->min_buffer_size,
|
|
stream->max_buffer_size);
|
|
}
|
|
return caps;
|
|
}
|
|
|
|
static GstCaps *
|
|
qtdemux_sub_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
QtDemuxStreamStsdEntry * entry, guint32 fourcc,
|
|
const guint8 * stsd_entry_data, gchar ** codec_name)
|
|
{
|
|
GstCaps *caps;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "resolve fourcc 0x%08x", GUINT32_TO_BE (fourcc));
|
|
|
|
switch (fourcc) {
|
|
case FOURCC_mp4s:
|
|
_codec ("DVD subtitle");
|
|
caps = gst_caps_new_empty_simple ("subpicture/x-dvd");
|
|
stream->process_func = gst_qtdemux_process_buffer_dvd;
|
|
break;
|
|
case FOURCC_text:
|
|
_codec ("Quicktime timed text");
|
|
goto text;
|
|
case FOURCC_tx3g:
|
|
_codec ("3GPP timed text");
|
|
text:
|
|
caps = gst_caps_new_simple ("text/x-raw", "format", G_TYPE_STRING,
|
|
"utf8", NULL);
|
|
/* actual text piece needs to be extracted */
|
|
stream->process_func = gst_qtdemux_process_buffer_text;
|
|
break;
|
|
case FOURCC_stpp:
|
|
_codec ("XML subtitles");
|
|
caps = gst_caps_new_empty_simple ("application/ttml+xml");
|
|
break;
|
|
case FOURCC_wvtt:
|
|
{
|
|
GstBuffer *buffer;
|
|
const gchar *buf = "WEBVTT\n\n";
|
|
|
|
_codec ("WebVTT subtitles");
|
|
caps = gst_caps_new_empty_simple ("application/x-subtitle-vtt");
|
|
stream->process_func = gst_qtdemux_process_buffer_wvtt;
|
|
|
|
/* FIXME: Parse the vttC atom and get the entire WEBVTT header */
|
|
buffer = gst_buffer_new_and_alloc (8);
|
|
gst_buffer_fill (buffer, 0, buf, 8);
|
|
stream->buffers = g_slist_append (stream->buffers, buffer);
|
|
|
|
break;
|
|
}
|
|
case FOURCC_c608:
|
|
_codec ("CEA 608 Closed Caption");
|
|
caps =
|
|
gst_caps_new_simple ("closedcaption/x-cea-608", "format",
|
|
G_TYPE_STRING, "s334-1a", NULL);
|
|
stream->process_func = gst_qtdemux_process_buffer_clcp;
|
|
stream->need_split = TRUE;
|
|
break;
|
|
case FOURCC_c708:
|
|
_codec ("CEA 708 Closed Caption");
|
|
caps =
|
|
gst_caps_new_simple ("closedcaption/x-cea-708", "format",
|
|
G_TYPE_STRING, "cdp", NULL);
|
|
stream->process_func = gst_qtdemux_process_buffer_clcp;
|
|
break;
|
|
|
|
default:
|
|
{
|
|
caps = _get_unknown_codec_name ("text", fourcc);
|
|
break;
|
|
}
|
|
}
|
|
return caps;
|
|
}
|
|
|
|
static GstCaps *
|
|
qtdemux_meta_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
QtDemuxStreamStsdEntry * entry, guint32 fourcc,
|
|
const guint8 * stsd_entry_data, gchar ** codec_name)
|
|
{
|
|
GstCaps *caps = NULL;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "resolve fourcc 0x%08x", GUINT32_TO_BE (fourcc));
|
|
|
|
switch (fourcc) {
|
|
case FOURCC_metx:{
|
|
gsize size = QT_UINT32 (stsd_entry_data);
|
|
GstByteReader reader = GST_BYTE_READER_INIT (stsd_entry_data, size);
|
|
const gchar *content_encoding;
|
|
const gchar *namespaces;
|
|
const gchar *schema_locations;
|
|
|
|
if (!gst_byte_reader_skip (&reader, 8 + 6 + 2)) {
|
|
GST_WARNING_OBJECT (qtdemux, "Too short metx sample entry");
|
|
break;
|
|
}
|
|
|
|
if (!gst_byte_reader_get_string (&reader, &content_encoding) ||
|
|
!gst_byte_reader_get_string (&reader, &namespaces) ||
|
|
!gst_byte_reader_get_string (&reader, &schema_locations)) {
|
|
GST_WARNING_OBJECT (qtdemux, "Too short metx sample entry");
|
|
break;
|
|
}
|
|
|
|
if (strstr (namespaces, "http://www.onvif.org/ver10/schema") != 0) {
|
|
if (content_encoding == NULL || *content_encoding == '\0'
|
|
|| g_ascii_strcasecmp (content_encoding, "xml") == 0) {
|
|
_codec ("ONVIF Timed XML MetaData");
|
|
caps =
|
|
gst_caps_new_simple ("application/x-onvif-metadata", "parsed",
|
|
G_TYPE_BOOLEAN, TRUE, NULL);
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "Unknown content encoding: %s",
|
|
content_encoding);
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "Unknown metadata namespaces: %s",
|
|
namespaces);
|
|
}
|
|
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (!caps)
|
|
caps = _get_unknown_codec_name ("meta", fourcc);
|
|
|
|
return caps;
|
|
}
|
|
|
|
static GstCaps *
|
|
qtdemux_generic_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
QtDemuxStreamStsdEntry * entry, guint32 fourcc,
|
|
const guint8 * stsd_entry_data, gchar ** codec_name)
|
|
{
|
|
GstCaps *caps;
|
|
|
|
switch (fourcc) {
|
|
case FOURCC_m1v:
|
|
_codec ("MPEG 1 video");
|
|
caps = gst_caps_new_simple ("video/mpeg", "mpegversion", G_TYPE_INT, 1,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
default:
|
|
caps = NULL;
|
|
break;
|
|
}
|
|
return caps;
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_append_protection_system_id (GstQTDemux * qtdemux,
|
|
const gchar * system_id)
|
|
{
|
|
gint i;
|
|
|
|
if (!qtdemux->protection_system_ids)
|
|
qtdemux->protection_system_ids =
|
|
g_ptr_array_new_with_free_func ((GDestroyNotify) g_free);
|
|
/* Check whether we already have an entry for this system ID. */
|
|
for (i = 0; i < qtdemux->protection_system_ids->len; ++i) {
|
|
const gchar *id = g_ptr_array_index (qtdemux->protection_system_ids, i);
|
|
if (g_ascii_strcasecmp (system_id, id) == 0) {
|
|
return;
|
|
}
|
|
}
|
|
GST_DEBUG_OBJECT (qtdemux, "Adding cenc protection system ID %s", system_id);
|
|
g_ptr_array_add (qtdemux->protection_system_ids, g_ascii_strdown (system_id,
|
|
-1));
|
|
}
|