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6219 lines
192 KiB
C
6219 lines
192 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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*
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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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/**
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* SECTION:element-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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* <refsect2>
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* <title>Example launch line</title>
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* |[
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* gst-launch filesrc location=test.mov ! qtdemux name=demux demux.audio_00 ! decodebin ! audioconvert ! audioresample ! autoaudiosink demux.video_00 ! queue ! decodebin ! ffmpegcolorspace ! 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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* </refsect2>
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*
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* Last reviewed on 2006-12-29 (0.10.5)
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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 "gst/gst-i18n-plugin.h"
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#include <gst/tag/tag.h>
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#include "qtdemux_types.h"
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#include "qtdemux_dump.h"
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#include "qtdemux_fourcc.h"
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#include "qtdemux.h"
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#include "qtpalette.h"
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#include <stdlib.h>
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#include <string.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 (25*1024*1024)
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GST_DEBUG_CATEGORY (qtdemux_debug);
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/*typedef struct _QtNode QtNode; */
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typedef struct _QtDemuxSegment QtDemuxSegment;
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typedef struct _QtDemuxSample QtDemuxSample;
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/*struct _QtNode
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{
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guint32 type;
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guint8 *data;
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gint len;
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};*/
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struct _QtDemuxSample
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{
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guint32 size;
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guint64 offset;
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GstClockTimeDiff pts_offset; /* Add this value to timestamp to get the pts */
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guint64 timestamp; /* In GstClockTime */
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guint64 duration; /* in GstClockTime */
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gboolean keyframe; /* TRUE when this packet is a keyframe */
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};
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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 tupples 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 fortunatly 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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guint64 time;
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guint64 stop_time;
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guint64 duration;
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/* media time of trak, all gst time */
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guint64 media_start;
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guint64 media_stop;
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gdouble rate;
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};
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struct _QtDemuxStream
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{
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GstPad *pad;
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/* stream type */
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guint32 subtype;
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GstCaps *caps;
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guint32 fourcc;
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/* duration/scale */
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guint64 duration; /* in timescale */
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guint32 timescale;
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/* our samples */
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guint32 n_samples;
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QtDemuxSample *samples;
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gboolean all_keyframe; /* TRUE when all samples are keyframes (no stss) */
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guint32 min_duration; /* duration in timescale of first sample, used for figuring out
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the framerate, in timescale units */
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/* if we use chunks or samples */
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gboolean sampled;
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guint padding;
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/* video info */
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gint width;
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gint height;
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/* aspect ratio */
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gint display_width;
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gint display_height;
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gint par_w;
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gint par_h;
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/* Numerator/denominator framerate */
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gint fps_n;
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gint fps_d;
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guint16 bits_per_sample;
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guint16 color_table_id;
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/* audio info */
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gdouble rate;
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gint n_channels;
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guint samples_per_packet;
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guint samples_per_frame;
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guint bytes_per_packet;
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guint bytes_per_sample;
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guint bytes_per_frame;
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guint compression;
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/* when a discontinuity is pending */
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gboolean discont;
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/* list of buffers to push first */
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GSList *buffers;
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/* if we need to clip this buffer. This is only needed for uncompressed
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* data */
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gboolean need_clip;
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/* current position */
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guint32 segment_index;
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guint32 sample_index;
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guint64 time_position; /* in gst time */
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/* the Gst segment we are processing out, used for clipping */
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GstSegment segment;
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/* last GstFlowReturn */
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GstFlowReturn last_ret;
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/* quicktime segments */
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guint32 n_segments;
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QtDemuxSegment *segments;
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guint32 from_sample;
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guint32 to_sample;
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gboolean sent_eos;
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};
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enum QtDemuxState
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{
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QTDEMUX_STATE_INITIAL, /* Initial state (haven't got the header yet) */
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QTDEMUX_STATE_HEADER, /* Parsing the header */
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QTDEMUX_STATE_MOVIE, /* Parsing/Playing the media data */
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QTDEMUX_STATE_BUFFER_MDAT /* Buffering the mdat atom */
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};
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static GNode *qtdemux_tree_get_child_by_type (GNode * node, guint32 fourcc);
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static GNode *qtdemux_tree_get_sibling_by_type (GNode * node, guint32 fourcc);
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static const GstElementDetails gst_qtdemux_details =
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GST_ELEMENT_DETAILS ("QuickTime demuxer",
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"Codec/Demuxer",
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"Demultiplex a QuickTime file into audio and video streams",
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"David Schleef <ds@schleef.org>, Wim Taymans <wim@fluendo.com>");
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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_%02d",
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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_%02d",
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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_subpsrc_template =
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GST_STATIC_PAD_TEMPLATE ("subp_%02d",
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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 GstElementClass *parent_class = NULL;
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static void gst_qtdemux_class_init (GstQTDemuxClass * klass);
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static void gst_qtdemux_base_init (GstQTDemuxClass * klass);
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static void gst_qtdemux_init (GstQTDemux * quicktime_demux);
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static void gst_qtdemux_dispose (GObject * object);
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static GstStateChangeReturn gst_qtdemux_change_state (GstElement * element,
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GstStateChange transition);
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static gboolean qtdemux_sink_activate (GstPad * sinkpad);
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static gboolean qtdemux_sink_activate_pull (GstPad * sinkpad, gboolean active);
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static gboolean qtdemux_sink_activate_push (GstPad * sinkpad, gboolean active);
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static void gst_qtdemux_loop (GstPad * pad);
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static GstFlowReturn gst_qtdemux_chain (GstPad * sinkpad, GstBuffer * inbuf);
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static gboolean gst_qtdemux_handle_sink_event (GstPad * pad, GstEvent * event);
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static gboolean qtdemux_parse_moov (GstQTDemux * qtdemux, const guint8 * buffer,
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int length);
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static gboolean qtdemux_parse_node (GstQTDemux * qtdemux, GNode * node,
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const guint8 * buffer, int 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, GNode * esds, GstTagList * list);
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static GstCaps *qtdemux_video_caps (GstQTDemux * qtdemux,
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QtDemuxStream * stream, guint32 fourcc, const guint8 * stsd_data,
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gchar ** codec_name);
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static GstCaps *qtdemux_audio_caps (GstQTDemux * qtdemux,
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QtDemuxStream * stream, guint32 fourcc, const guint8 * data, int len,
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gchar ** codec_name);
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static GstCaps *qtdemux_subp_caps (GstQTDemux * qtdemux,
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QtDemuxStream * stream, guint32 fourcc, const guint8 * data,
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gchar ** codec_name);
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GType
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gst_qtdemux_get_type (void)
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{
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static GType qtdemux_type = 0;
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if (G_UNLIKELY (!qtdemux_type)) {
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static const GTypeInfo qtdemux_info = {
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sizeof (GstQTDemuxClass),
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(GBaseInitFunc) gst_qtdemux_base_init, NULL,
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(GClassInitFunc) gst_qtdemux_class_init,
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NULL, NULL, sizeof (GstQTDemux), 0,
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(GInstanceInitFunc) gst_qtdemux_init,
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};
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qtdemux_type =
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g_type_register_static (GST_TYPE_ELEMENT, "GstQTDemux", &qtdemux_info,
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0);
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}
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return qtdemux_type;
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}
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static void
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gst_qtdemux_base_init (GstQTDemuxClass * klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_qtdemux_sink_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_qtdemux_videosrc_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_qtdemux_audiosrc_template));
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gst_element_class_set_details (element_class, &gst_qtdemux_details);
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GST_DEBUG_CATEGORY_INIT (qtdemux_debug, "qtdemux", 0, "qtdemux plugin");
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}
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static void
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gst_qtdemux_class_init (GstQTDemuxClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->dispose = gst_qtdemux_dispose;
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gstelement_class->change_state = gst_qtdemux_change_state;
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}
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static void
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gst_qtdemux_init (GstQTDemux * qtdemux)
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{
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qtdemux->sinkpad =
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gst_pad_new_from_static_template (&gst_qtdemux_sink_template, "sink");
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gst_pad_set_activate_function (qtdemux->sinkpad, qtdemux_sink_activate);
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gst_pad_set_activatepull_function (qtdemux->sinkpad,
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qtdemux_sink_activate_pull);
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gst_pad_set_activatepush_function (qtdemux->sinkpad,
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qtdemux_sink_activate_push);
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gst_pad_set_chain_function (qtdemux->sinkpad, gst_qtdemux_chain);
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gst_pad_set_event_function (qtdemux->sinkpad, gst_qtdemux_handle_sink_event);
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gst_element_add_pad (GST_ELEMENT_CAST (qtdemux), qtdemux->sinkpad);
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qtdemux->state = QTDEMUX_STATE_INITIAL;
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/* FIXME, use segment last_stop for this */
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qtdemux->last_ts = GST_CLOCK_TIME_NONE;
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qtdemux->pullbased = FALSE;
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qtdemux->neededbytes = 16;
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qtdemux->todrop = 0;
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qtdemux->adapter = gst_adapter_new ();
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qtdemux->offset = 0;
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qtdemux->mdatoffset = GST_CLOCK_TIME_NONE;
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qtdemux->mdatbuffer = NULL;
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gst_segment_init (&qtdemux->segment, GST_FORMAT_TIME);
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}
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static void
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gst_qtdemux_dispose (GObject * object)
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{
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GstQTDemux *qtdemux = GST_QTDEMUX (object);
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if (qtdemux->adapter) {
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g_object_unref (G_OBJECT (qtdemux->adapter));
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qtdemux->adapter = NULL;
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static GstFlowReturn
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gst_qtdemux_pull_atom (GstQTDemux * qtdemux, guint64 offset, guint64 size,
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GstBuffer ** buf)
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{
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GstFlowReturn flow;
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/* Sanity check: catch bogus sizes (fuzzed/broken files) */
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if (G_UNLIKELY (size > QTDEMUX_MAX_ATOM_SIZE)) {
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GST_ELEMENT_ERROR (qtdemux, STREAM, DECODE,
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(_("This file is invalid and cannot be played.")),
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("atom has bogus size %" G_GUINT64_FORMAT, size));
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return GST_FLOW_ERROR;
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}
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flow = gst_pad_pull_range (qtdemux->sinkpad, offset, size, buf);
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if (G_UNLIKELY (flow != GST_FLOW_OK))
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return flow;
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/* Catch short reads - we don't want any partial atoms */
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if (G_UNLIKELY (GST_BUFFER_SIZE (*buf) < size)) {
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GST_WARNING_OBJECT (qtdemux, "short read: %u < %" G_GUINT64_FORMAT,
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GST_BUFFER_SIZE (*buf), size);
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gst_buffer_unref (*buf);
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*buf = NULL;
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return GST_FLOW_UNEXPECTED;
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}
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return flow;
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}
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#if 0
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static gboolean
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gst_qtdemux_src_convert (GstPad * pad, GstFormat src_format, gint64 src_value,
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GstFormat * dest_format, gint64 * dest_value)
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{
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gboolean res = TRUE;
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QtDemuxStream *stream = gst_pad_get_element_private (pad);
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if (stream->subtype == GST_MAKE_FOURCC ('v', 'i', 'd', 'e') &&
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(src_format == GST_FORMAT_BYTES || *dest_format == GST_FORMAT_BYTES))
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return FALSE;
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switch (src_format) {
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case GST_FORMAT_TIME:
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switch (*dest_format) {
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case GST_FORMAT_BYTES:
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*dest_value = src_value * 1; /* FIXME */
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break;
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case GST_FORMAT_DEFAULT:
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*dest_value = src_value * 1; /* FIXME */
|
|
break;
|
|
default:
|
|
res = FALSE;
|
|
break;
|
|
}
|
|
break;
|
|
case GST_FORMAT_BYTES:
|
|
switch (*dest_format) {
|
|
case GST_FORMAT_TIME:
|
|
*dest_value = src_value * 1; /* FIXME */
|
|
break;
|
|
default:
|
|
res = FALSE;
|
|
break;
|
|
}
|
|
break;
|
|
case GST_FORMAT_DEFAULT:
|
|
switch (*dest_format) {
|
|
case GST_FORMAT_TIME:
|
|
*dest_value = src_value * 1; /* FIXME */
|
|
break;
|
|
default:
|
|
res = FALSE;
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
res = FALSE;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
#endif
|
|
|
|
static const GstQueryType *
|
|
gst_qtdemux_get_src_query_types (GstPad * pad)
|
|
{
|
|
static const GstQueryType src_types[] = {
|
|
GST_QUERY_POSITION,
|
|
GST_QUERY_DURATION,
|
|
GST_QUERY_SEEKING,
|
|
0
|
|
};
|
|
|
|
return src_types;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_get_duration (GstQTDemux * qtdemux, gint64 * duration)
|
|
{
|
|
gboolean res = TRUE;
|
|
|
|
*duration = GST_CLOCK_TIME_NONE;
|
|
|
|
if (qtdemux->duration != 0) {
|
|
if (qtdemux->duration != G_MAXINT32 && qtdemux->timescale != 0) {
|
|
*duration = gst_util_uint64_scale (qtdemux->duration,
|
|
GST_SECOND, qtdemux->timescale);
|
|
}
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_handle_src_query (GstPad * pad, GstQuery * query)
|
|
{
|
|
gboolean res = FALSE;
|
|
GstQTDemux *qtdemux = GST_QTDEMUX (gst_pad_get_parent (pad));
|
|
|
|
GST_LOG_OBJECT (pad, "%s query", GST_QUERY_TYPE_NAME (query));
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_POSITION:
|
|
if (GST_CLOCK_TIME_IS_VALID (qtdemux->segment.last_stop)) {
|
|
gst_query_set_position (query, GST_FORMAT_TIME,
|
|
qtdemux->segment.last_stop);
|
|
res = TRUE;
|
|
}
|
|
break;
|
|
case GST_QUERY_DURATION:{
|
|
GstFormat fmt;
|
|
|
|
gst_query_parse_duration (query, &fmt, NULL);
|
|
if (fmt == GST_FORMAT_TIME) {
|
|
gint64 duration = -1;
|
|
|
|
gst_qtdemux_get_duration (qtdemux, &duration);
|
|
if (duration > 0) {
|
|
gst_query_set_duration (query, GST_FORMAT_TIME, duration);
|
|
res = TRUE;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case GST_QUERY_SEEKING:{
|
|
GstFormat fmt;
|
|
gboolean seekable;
|
|
|
|
gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
|
|
if (fmt == GST_FORMAT_TIME) {
|
|
gint64 duration = -1;
|
|
|
|
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;
|
|
}
|
|
default:
|
|
res = gst_pad_query_default (pad, query);
|
|
break;
|
|
}
|
|
|
|
gst_object_unref (qtdemux);
|
|
|
|
return res;
|
|
}
|
|
|
|
/* push event on all source pads; takes ownership of the event */
|
|
static void
|
|
gst_qtdemux_push_event (GstQTDemux * qtdemux, GstEvent * event)
|
|
{
|
|
guint n;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "pushing %s event on all source pads",
|
|
GST_EVENT_TYPE_NAME (event));
|
|
|
|
for (n = 0; n < qtdemux->n_streams; n++) {
|
|
GstPad *pad;
|
|
|
|
if ((pad = qtdemux->streams[n]->pad))
|
|
gst_pad_push_event (pad, gst_event_ref (event));
|
|
}
|
|
gst_event_unref (event);
|
|
}
|
|
|
|
/* push a pending newsegment event, if any from the streaming thread */
|
|
static void
|
|
gst_qtdemux_push_pending_newsegment (GstQTDemux * qtdemux)
|
|
{
|
|
if (qtdemux->pending_newsegment) {
|
|
gst_qtdemux_push_event (qtdemux, qtdemux->pending_newsegment);
|
|
qtdemux->pending_newsegment = NULL;
|
|
}
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
guint64 media_time;
|
|
} FindData;
|
|
|
|
static gint
|
|
find_func (QtDemuxSample * s1, guint64 * media_time, gpointer user_data)
|
|
{
|
|
if (s1->timestamp > *media_time)
|
|
return 1;
|
|
|
|
return -1;
|
|
}
|
|
|
|
/* find the index of the sample that includes the data for @media_time
|
|
*
|
|
* Returns the index of the sample.
|
|
*/
|
|
static guint32
|
|
gst_qtdemux_find_index (GstQTDemux * qtdemux, QtDemuxStream * str,
|
|
guint64 media_time)
|
|
{
|
|
QtDemuxSample *result;
|
|
guint32 index;
|
|
|
|
result = gst_util_array_binary_search (str->samples, str->n_samples,
|
|
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 keyframe needed to decode the sample at @index
|
|
* of stream @str.
|
|
*
|
|
* Returns the index of the keyframe.
|
|
*/
|
|
static guint32
|
|
gst_qtdemux_find_keyframe (GstQTDemux * qtdemux, QtDemuxStream * str,
|
|
guint32 index)
|
|
{
|
|
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 go back until we have a keyframe */
|
|
while (TRUE) {
|
|
if (str->samples[new_index].keyframe)
|
|
break;
|
|
|
|
if (new_index == 0)
|
|
break;
|
|
|
|
new_index--;
|
|
}
|
|
|
|
beach:
|
|
GST_DEBUG_OBJECT (qtdemux, "searching for keyframe index before index %u "
|
|
"gave %u", index, new_index);
|
|
|
|
return new_index;
|
|
}
|
|
|
|
/* find the segment for @time_position for @stream
|
|
*
|
|
* Returns -1 if the segment cannot be found.
|
|
*/
|
|
static guint32
|
|
gst_qtdemux_find_segment (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
guint64 time_position)
|
|
{
|
|
gint i;
|
|
guint32 seg_idx;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "finding segment for %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (time_position));
|
|
|
|
/* find segment corresponding to time_position if we are looking
|
|
* for a segment. */
|
|
seg_idx = -1;
|
|
for (i = 0; i < stream->n_segments; i++) {
|
|
QtDemuxSegment *segment = &stream->segments[i];
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"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 (qtdemux, "segment %d matches", i);
|
|
seg_idx = i;
|
|
break;
|
|
}
|
|
} else {
|
|
if (segment->time <= time_position && time_position <= segment->stop_time) {
|
|
GST_LOG_OBJECT (qtdemux, "segment %d matches", i);
|
|
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;
|
|
/* 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,
|
|
gint64 * key_time, gint64 * key_offset)
|
|
{
|
|
guint64 min_offset;
|
|
gint64 min_byte_offset = -1;
|
|
gint n;
|
|
|
|
min_offset = desired_time;
|
|
|
|
/* for each stream, find the index of the sample in the segment
|
|
* and move back to the previous keyframe. */
|
|
for (n = 0; n < qtdemux->n_streams; n++) {
|
|
QtDemuxStream *str;
|
|
guint32 index, kindex;
|
|
guint32 seg_idx;
|
|
guint64 media_start;
|
|
guint64 media_time;
|
|
guint64 seg_time;
|
|
QtDemuxSegment *seg;
|
|
|
|
str = qtdemux->streams[n];
|
|
|
|
seg_idx = gst_qtdemux_find_segment (qtdemux, str, desired_time);
|
|
GST_DEBUG_OBJECT (qtdemux, "align segment %d", seg_idx);
|
|
|
|
/* segment not found, continue with normal flow */
|
|
if (seg_idx == -1)
|
|
continue;
|
|
|
|
/* get segment and time in the segment */
|
|
seg = &str->segments[seg_idx];
|
|
seg_time = desired_time - seg->time;
|
|
|
|
/* 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 (qtdemux, str, media_start);
|
|
GST_DEBUG_OBJECT (qtdemux, "sample for %" GST_TIME_FORMAT " at %u",
|
|
GST_TIME_ARGS (media_start), index);
|
|
|
|
/* find previous keyframe */
|
|
kindex = gst_qtdemux_find_keyframe (qtdemux, str, index);
|
|
|
|
/* if the keyframe is at a different position, we need to update the
|
|
* requested seek time */
|
|
if (index != kindex) {
|
|
index = kindex;
|
|
|
|
/* get timestamp of keyframe */
|
|
media_time = str->samples[kindex].timestamp;
|
|
GST_DEBUG_OBJECT (qtdemux, "keyframe at %u with time %" GST_TIME_FORMAT,
|
|
kindex, GST_TIME_ARGS (media_time));
|
|
|
|
/* 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) {
|
|
guint64 seg_time;
|
|
|
|
/* this keyframe is inside the segment, convert back to
|
|
* segment time */
|
|
seg_time = (media_time - seg->media_start) + seg->time;
|
|
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;
|
|
GstFormat fmt;
|
|
|
|
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;
|
|
|
|
fmt = GST_FORMAT_TIME;
|
|
res = TRUE;
|
|
if (cur_type != GST_SEEK_TYPE_NONE)
|
|
res = gst_pad_query_convert (pad, *format, *cur, &fmt, cur);
|
|
if (res && stop_type != GST_SEEK_TYPE_NONE)
|
|
res = gst_pad_query_convert (pad, *format, *stop, &fmt, 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;
|
|
gboolean res;
|
|
gint64 byte_cur;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "doing push-based seek");
|
|
|
|
gst_event_parse_seek (event, &rate, &format, &flags,
|
|
&cur_type, &cur, &stop_type, &stop);
|
|
|
|
if (stop_type != GST_SEEK_TYPE_NONE)
|
|
goto unsupported_seek;
|
|
stop = -1;
|
|
|
|
/* 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;
|
|
|
|
/* find reasonable corresponding BYTE position,
|
|
* also try to mind about keyframes, since we can not go back a bit for them
|
|
* later on */
|
|
gst_qtdemux_adjust_seek (qtdemux, cur, NULL, &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);
|
|
/* BYTE seek event */
|
|
event = gst_event_new_seek (rate, GST_FORMAT_BYTES, flags, cur_type, byte_cur,
|
|
stop_type, stop);
|
|
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)
|
|
{
|
|
gint64 desired_offset;
|
|
gint n;
|
|
|
|
desired_offset = segment->last_stop;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "seeking to %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (desired_offset));
|
|
|
|
if (segment->flags & GST_SEEK_FLAG_KEY_UNIT) {
|
|
gint64 min_offset;
|
|
|
|
gst_qtdemux_adjust_seek (qtdemux, desired_offset, &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 */
|
|
for (n = 0; n < qtdemux->n_streams; n++) {
|
|
QtDemuxStream *stream = qtdemux->streams[n];
|
|
|
|
stream->time_position = desired_offset;
|
|
stream->sample_index = -1;
|
|
stream->segment_index = -1;
|
|
stream->last_ret = GST_FLOW_OK;
|
|
stream->sent_eos = FALSE;
|
|
}
|
|
segment->last_stop = desired_offset;
|
|
segment->time = desired_offset;
|
|
|
|
/* we stop at the end */
|
|
if (segment->stop == -1)
|
|
segment->stop = segment->duration;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* do a seek in pull based mode */
|
|
static gboolean
|
|
gst_qtdemux_do_seek (GstQTDemux * qtdemux, GstPad * pad, GstEvent * event)
|
|
{
|
|
gdouble rate;
|
|
GstFormat format;
|
|
GstSeekFlags flags;
|
|
GstSeekType cur_type, stop_type;
|
|
gint64 cur, stop;
|
|
gboolean flush;
|
|
gboolean update;
|
|
GstSegment seeksegment;
|
|
int i;
|
|
|
|
if (event) {
|
|
GST_DEBUG_OBJECT (qtdemux, "doing seek with event");
|
|
|
|
gst_event_parse_seek (event, &rate, &format, &flags,
|
|
&cur_type, &cur, &stop_type, &stop);
|
|
|
|
/* 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));
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "doing seek without event");
|
|
flags = 0;
|
|
}
|
|
|
|
flush = flags & GST_SEEK_FLAG_FLUSH;
|
|
|
|
/* stop streaming, either by flushing or by pausing the task */
|
|
if (flush) {
|
|
/* unlock upstream pull_range */
|
|
gst_pad_push_event (qtdemux->sinkpad, gst_event_new_flush_start ());
|
|
/* make sure out loop function exits */
|
|
gst_qtdemux_push_event (qtdemux, gst_event_new_flush_start ());
|
|
} 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));
|
|
|
|
if (event) {
|
|
/* configure the segment with the seek variables */
|
|
GST_DEBUG_OBJECT (qtdemux, "configuring seek");
|
|
gst_segment_set_seek (&seeksegment, rate, format, flags,
|
|
cur_type, cur, stop_type, stop, &update);
|
|
}
|
|
|
|
/* now do the seek, this actually never returns FALSE */
|
|
gst_qtdemux_perform_seek (qtdemux, &seeksegment);
|
|
|
|
/* prepare for streaming again */
|
|
if (flush) {
|
|
gst_pad_push_event (qtdemux->sinkpad, gst_event_new_flush_stop ());
|
|
gst_qtdemux_push_event (qtdemux, gst_event_new_flush_stop ());
|
|
} else if (qtdemux->segment_running) {
|
|
/* we are running the current segment and doing a non-flushing seek,
|
|
* close the segment first based on the last_stop. */
|
|
GST_DEBUG_OBJECT (qtdemux, "closing running segment %" G_GINT64_FORMAT
|
|
" to %" G_GINT64_FORMAT, qtdemux->segment.start,
|
|
qtdemux->segment.last_stop);
|
|
|
|
if (qtdemux->segment.rate >= 0) {
|
|
/* FIXME, rate is the product of the global rate and the (quicktime)
|
|
* segment rate. */
|
|
qtdemux->pending_newsegment = gst_event_new_new_segment (TRUE,
|
|
qtdemux->segment.rate, qtdemux->segment.format,
|
|
qtdemux->segment.start, qtdemux->segment.last_stop,
|
|
qtdemux->segment.time);
|
|
} else { /* For Reverse Playback */
|
|
guint64 stop;
|
|
|
|
if ((stop = qtdemux->segment.stop) == -1)
|
|
stop = qtdemux->segment.duration;
|
|
/* for reverse playback, we played from stop to last_stop. */
|
|
qtdemux->pending_newsegment = gst_event_new_new_segment (TRUE,
|
|
qtdemux->segment.rate, qtdemux->segment.format,
|
|
qtdemux->segment.last_stop, stop, qtdemux->segment.last_stop);
|
|
}
|
|
}
|
|
|
|
/* commit the new segment */
|
|
memcpy (&qtdemux->segment, &seeksegment, sizeof (GstSegment));
|
|
|
|
if (qtdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
|
|
gst_element_post_message (GST_ELEMENT_CAST (qtdemux),
|
|
gst_message_new_segment_start (GST_OBJECT_CAST (qtdemux),
|
|
qtdemux->segment.format, qtdemux->segment.last_stop));
|
|
}
|
|
|
|
/* restart streaming, NEWSEGMENT will be sent from the streaming
|
|
* thread. */
|
|
qtdemux->segment_running = TRUE;
|
|
for (i = 0; i < qtdemux->n_streams; i++)
|
|
qtdemux->streams[i]->last_ret = GST_FLOW_OK;
|
|
|
|
gst_pad_start_task (qtdemux->sinkpad, (GstTaskFunction) gst_qtdemux_loop,
|
|
qtdemux->sinkpad);
|
|
|
|
GST_PAD_STREAM_UNLOCK (qtdemux->sinkpad);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
no_format:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "unsupported format given, seek aborted.");
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_handle_src_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
gboolean res = TRUE;
|
|
GstQTDemux *qtdemux = GST_QTDEMUX (gst_pad_get_parent (pad));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_SEEK:
|
|
if (qtdemux->pullbased) {
|
|
res = gst_qtdemux_do_seek (qtdemux, pad, event);
|
|
} else if (qtdemux->state == QTDEMUX_STATE_MOVIE && qtdemux->n_streams) {
|
|
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;
|
|
case GST_EVENT_QOS:
|
|
case GST_EVENT_NAVIGATION:
|
|
res = FALSE;
|
|
gst_event_unref (event);
|
|
break;
|
|
default:
|
|
res = gst_pad_event_default (pad, event);
|
|
break;
|
|
}
|
|
|
|
gst_object_unref (qtdemux);
|
|
|
|
return res;
|
|
}
|
|
|
|
/* stream/index return sample that is min/max w.r.t. byte position,
|
|
* time is min/max w.r.t. time of samples,
|
|
* the latter need not be time of the former sample */
|
|
static void
|
|
gst_qtdemux_find_sample (GstQTDemux * qtdemux, gint64 byte_pos, gboolean fw,
|
|
gboolean set, QtDemuxStream ** _stream, gint * _index, gint64 * _time)
|
|
{
|
|
gint i, n, index;
|
|
gint64 time, min_time;
|
|
QtDemuxStream *stream;
|
|
|
|
min_time = -1;
|
|
stream = NULL;
|
|
index = -1;
|
|
|
|
for (n = 0; n < qtdemux->n_streams; ++n) {
|
|
QtDemuxStream *str;
|
|
gint inc;
|
|
gboolean set_sample;
|
|
|
|
|
|
str = qtdemux->streams[n];
|
|
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 &&
|
|
((fw && (str->samples[i].offset >= byte_pos)) ||
|
|
(!fw &&
|
|
(str->samples[i].offset + str->samples[i].size <=
|
|
byte_pos)))) {
|
|
/* move stream to first available sample */
|
|
if (set) {
|
|
gst_qtdemux_move_stream (qtdemux, str, i);
|
|
set_sample = TRUE;
|
|
}
|
|
/* determine min/max time */
|
|
time = str->samples[i].timestamp + str->samples[i].pts_offset;
|
|
if (min_time == -1 || (fw && min_time > time) ||
|
|
(!fw && min_time < time)) {
|
|
min_time = time;
|
|
}
|
|
/* determine stream with leading sample, to get its position */
|
|
/* only needed in fw case */
|
|
if (fw && (!stream ||
|
|
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;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_handle_sink_event (GstPad * sinkpad, GstEvent * event)
|
|
{
|
|
GstQTDemux *demux = GST_QTDEMUX (GST_PAD_PARENT (sinkpad));
|
|
gboolean res;
|
|
|
|
GST_LOG_OBJECT (demux, "handling %s event", GST_EVENT_TYPE_NAME (event));
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_NEWSEGMENT:
|
|
{
|
|
GstFormat format;
|
|
gdouble rate, arate;
|
|
gint64 start, stop, time, offset = 0;
|
|
QtDemuxStream *stream;
|
|
gint idx;
|
|
gboolean update;
|
|
GstSegment segment;
|
|
|
|
/* some debug output */
|
|
gst_segment_init (&segment, GST_FORMAT_UNDEFINED);
|
|
gst_event_parse_new_segment_full (event, &update, &rate, &arate, &format,
|
|
&start, &stop, &time);
|
|
gst_segment_set_newsegment_full (&segment, update, rate, arate, format,
|
|
start, stop, time);
|
|
GST_DEBUG_OBJECT (demux,
|
|
"received format %d newsegment %" GST_SEGMENT_FORMAT, format,
|
|
&segment);
|
|
|
|
/* chain will send initial newsegment after pads have been added */
|
|
if (demux->state != QTDEMUX_STATE_MOVIE || !demux->n_streams) {
|
|
GST_DEBUG_OBJECT (demux, "still starting, eating event");
|
|
goto exit;
|
|
}
|
|
|
|
/* we only expect a BYTE segment, e.g. following a seek */
|
|
if (format == GST_FORMAT_BYTES) {
|
|
if (start > 0) {
|
|
offset = start;
|
|
gst_qtdemux_find_sample (demux, start, TRUE, FALSE, NULL, NULL,
|
|
&start);
|
|
start = MAX (start, 0);
|
|
}
|
|
if (stop > 0) {
|
|
gst_qtdemux_find_sample (demux, stop, FALSE, FALSE, NULL, NULL,
|
|
&stop);
|
|
stop = MAX (stop, 0);
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "unsupported segment format, ignoring");
|
|
goto exit;
|
|
}
|
|
|
|
/* accept upstream's notion of segment and distribute along */
|
|
gst_segment_set_newsegment_full (&demux->segment, update, rate, arate,
|
|
GST_FORMAT_TIME, start, stop, start);
|
|
GST_DEBUG_OBJECT (demux, "Pushing newseg update %d, rate %g, "
|
|
"applied rate %g, format %d, start %" G_GINT64_FORMAT ", "
|
|
"stop %" G_GINT64_FORMAT, update, rate, arate, GST_FORMAT_TIME,
|
|
start, stop);
|
|
gst_qtdemux_push_event (demux,
|
|
gst_event_new_new_segment_full (update, rate, arate, GST_FORMAT_TIME,
|
|
start, stop, start));
|
|
|
|
/* clear leftover in current segment, if any */
|
|
gst_adapter_clear (demux->adapter);
|
|
/* set up streaming thread */
|
|
gst_qtdemux_find_sample (demux, offset, TRUE, TRUE, &stream, &idx, NULL);
|
|
demux->offset = offset;
|
|
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;
|
|
break;
|
|
}
|
|
case GST_EVENT_FLUSH_STOP:
|
|
{
|
|
gint i;
|
|
|
|
/* clean up, force EOS if no more info follows */
|
|
gst_adapter_clear (demux->adapter);
|
|
demux->offset = 0;
|
|
demux->neededbytes = -1;
|
|
/* reset flow return, e.g. following seek */
|
|
for (i = 0; i < demux->n_streams; i++) {
|
|
demux->streams[i]->last_ret = GST_FLOW_OK;
|
|
demux->streams[i]->sent_eos = FALSE;
|
|
}
|
|
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 && demux->n_streams == 0) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DECODE,
|
|
(_("This file contains no playable streams.")),
|
|
("no known streams found"));
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
res = gst_pad_event_default (demux->sinkpad, event);
|
|
|
|
drop:
|
|
return res;
|
|
}
|
|
|
|
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_PAUSED_TO_READY:
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
result = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:{
|
|
gint n;
|
|
|
|
qtdemux->state = QTDEMUX_STATE_INITIAL;
|
|
qtdemux->last_ts = GST_CLOCK_TIME_NONE;
|
|
qtdemux->neededbytes = 16;
|
|
qtdemux->todrop = 0;
|
|
qtdemux->pullbased = FALSE;
|
|
qtdemux->offset = 0;
|
|
qtdemux->mdatoffset = GST_CLOCK_TIME_NONE;
|
|
if (qtdemux->mdatbuffer)
|
|
gst_buffer_unref (qtdemux->mdatbuffer);
|
|
qtdemux->mdatbuffer = NULL;
|
|
if (qtdemux->comp_brands)
|
|
gst_buffer_unref (qtdemux->comp_brands);
|
|
qtdemux->comp_brands = NULL;
|
|
gst_adapter_clear (qtdemux->adapter);
|
|
for (n = 0; n < qtdemux->n_streams; n++) {
|
|
QtDemuxStream *stream = qtdemux->streams[n];
|
|
|
|
while (stream->buffers) {
|
|
gst_buffer_unref (GST_BUFFER_CAST (stream->buffers->data));
|
|
stream->buffers =
|
|
g_slist_delete_link (stream->buffers, stream->buffers);
|
|
}
|
|
if (stream->pad)
|
|
gst_element_remove_pad (element, stream->pad);
|
|
if (stream->samples)
|
|
g_free (stream->samples);
|
|
if (stream->caps)
|
|
gst_caps_unref (stream->caps);
|
|
if (stream->segments)
|
|
g_free (stream->segments);
|
|
g_free (stream);
|
|
}
|
|
qtdemux->major_brand = 0;
|
|
qtdemux->n_streams = 0;
|
|
qtdemux->n_video_streams = 0;
|
|
qtdemux->n_audio_streams = 0;
|
|
qtdemux->n_subp_streams = 0;
|
|
gst_segment_init (&qtdemux->segment, GST_FORMAT_TIME);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
qtdemux_parse_ftyp (GstQTDemux * qtdemux, const guint8 * buffer, gint length)
|
|
{
|
|
/* only consider at least a sufficiently complete ftyp atom */
|
|
if (length >= 20) {
|
|
GstBuffer *buf;
|
|
|
|
qtdemux->major_brand = QT_FOURCC (buffer + 8);
|
|
GST_DEBUG_OBJECT (qtdemux, "major brand: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (qtdemux->major_brand));
|
|
buf = qtdemux->comp_brands = gst_buffer_new_and_alloc (length - 16);
|
|
memcpy (GST_BUFFER_DATA (buf), buffer + 16, GST_BUFFER_SIZE (buf));
|
|
}
|
|
}
|
|
|
|
static void
|
|
extract_initial_length_and_fourcc (const guint8 * data, 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_MAXUINT32;
|
|
} else if (length == 1) {
|
|
/* 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 GstFlowReturn
|
|
gst_qtdemux_loop_state_header (GstQTDemux * qtdemux)
|
|
{
|
|
guint64 length = 0;
|
|
guint32 fourcc;
|
|
GstBuffer *buf = NULL;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
guint64 cur_offset = qtdemux->offset;
|
|
|
|
ret = gst_pad_pull_range (qtdemux->sinkpad, cur_offset, 16, &buf);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
|
goto beach;
|
|
if (G_LIKELY (GST_BUFFER_SIZE (buf) == 16))
|
|
extract_initial_length_and_fourcc (GST_BUFFER_DATA (buf), &length, &fourcc);
|
|
gst_buffer_unref (buf);
|
|
|
|
if (G_UNLIKELY (length == 0)) {
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DECODE,
|
|
(_("This file is invalid and cannot be played.")),
|
|
("Header atom '%" GST_FOURCC_FORMAT "' has empty length",
|
|
GST_FOURCC_ARGS (fourcc)));
|
|
ret = GST_FLOW_ERROR;
|
|
goto beach;
|
|
}
|
|
|
|
switch (fourcc) {
|
|
case FOURCC_mdat:
|
|
case FOURCC_free:
|
|
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 += length;
|
|
break;
|
|
}
|
|
case FOURCC_moov:
|
|
{
|
|
GstBuffer *moov;
|
|
|
|
ret = gst_pad_pull_range (qtdemux->sinkpad, cur_offset, length, &moov);
|
|
if (ret != GST_FLOW_OK)
|
|
goto beach;
|
|
if (length != GST_BUFFER_SIZE (moov)) {
|
|
/* 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 (GST_BUFFER_SIZE (moov) >= 8) {
|
|
guint8 *final_data = GST_BUFFER_DATA (moov) +
|
|
(GST_BUFFER_SIZE (moov) - 8);
|
|
guint32 final_length = QT_UINT32 (final_data);
|
|
guint32 final_fourcc = QT_FOURCC (final_data + 4);
|
|
if (final_fourcc == FOURCC_free &&
|
|
GST_BUFFER_SIZE (moov) + 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_copy_metadata (newmoov, moov,
|
|
GST_BUFFER_COPY_FLAGS | GST_BUFFER_COPY_TIMESTAMPS |
|
|
GST_BUFFER_COPY_CAPS);
|
|
memcpy (GST_BUFFER_DATA (newmoov), GST_BUFFER_DATA (moov),
|
|
GST_BUFFER_SIZE (moov));
|
|
memset (GST_BUFFER_DATA (newmoov) + GST_BUFFER_SIZE (moov), 0,
|
|
final_length - 8);
|
|
gst_buffer_unref (moov);
|
|
moov = newmoov;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (length != GST_BUFFER_SIZE (moov)) {
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DECODE,
|
|
(_("This file is incomplete and cannot be played.")),
|
|
("We got less than expected (received %u, wanted %u, offset %"
|
|
G_GUINT64_FORMAT ")",
|
|
GST_BUFFER_SIZE (moov), (guint) length, cur_offset));
|
|
ret = GST_FLOW_ERROR;
|
|
goto beach;
|
|
}
|
|
qtdemux->offset += length;
|
|
|
|
qtdemux_parse_moov (qtdemux, GST_BUFFER_DATA (moov), length);
|
|
qtdemux_node_dump (qtdemux, qtdemux->moov_node);
|
|
|
|
qtdemux_parse_tree (qtdemux);
|
|
g_node_destroy (qtdemux->moov_node);
|
|
gst_buffer_unref (moov);
|
|
qtdemux->moov_node = NULL;
|
|
qtdemux->state = QTDEMUX_STATE_MOVIE;
|
|
GST_DEBUG_OBJECT (qtdemux, "switching state to STATE_MOVIE (%d)",
|
|
qtdemux->state);
|
|
break;
|
|
}
|
|
case FOURCC_ftyp:
|
|
{
|
|
GstBuffer *ftyp;
|
|
|
|
/* 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;
|
|
qtdemux_parse_ftyp (qtdemux, GST_BUFFER_DATA (ftyp),
|
|
GST_BUFFER_SIZE (ftyp));
|
|
gst_buffer_unref (ftyp);
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
GstBuffer *unknown;
|
|
|
|
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_MEMDUMP ("Unknown tag", GST_BUFFER_DATA (unknown),
|
|
GST_BUFFER_SIZE (unknown));
|
|
gst_buffer_unref (unknown);
|
|
qtdemux->offset += length;
|
|
break;
|
|
}
|
|
}
|
|
|
|
beach:
|
|
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)
|
|
{
|
|
guint8 n = 0;
|
|
guint32 seg_idx = 0, k_index = 0;
|
|
guint64 k_pos = 0, last_stop = 0;
|
|
QtDemuxSegment *seg = NULL;
|
|
QtDemuxStream *ref_str = NULL;
|
|
|
|
/* 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 (n = 0; n < qtdemux->n_streams; n++) {
|
|
QtDemuxStream *str = qtdemux->streams[n];
|
|
|
|
seg_idx = gst_qtdemux_find_segment (qtdemux, str,
|
|
qtdemux->segment.last_stop);
|
|
|
|
/* segment not found, continue with normal flow */
|
|
if (seg_idx == -1)
|
|
continue;
|
|
|
|
/* No candidate yet, take that one */
|
|
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);
|
|
} else {
|
|
k_index = ref_str->from_sample - 10;
|
|
}
|
|
|
|
/* get current segment for that stream */
|
|
seg = &ref_str->segments[ref_str->segment_index];
|
|
/* Crawl back through segments to find the one containing this I frame */
|
|
while (ref_str->samples[k_index].timestamp < seg->media_start) {
|
|
GST_DEBUG_OBJECT (qtdemux, "keyframe position is out of segment %u",
|
|
ref_str->segment_index);
|
|
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];
|
|
}
|
|
/* Calculate time position of the keyframe and where we should stop */
|
|
k_pos = (ref_str->samples[k_index].timestamp - seg->media_start) + seg->time;
|
|
last_stop = ref_str->samples[ref_str->from_sample].timestamp;
|
|
last_stop = (last_stop - seg->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 */
|
|
gst_segment_set_last_stop (&qtdemux->segment, GST_FORMAT_TIME, 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;
|
|
}
|
|
|
|
/* Align them all on this */
|
|
for (n = 0; n < qtdemux->n_streams; n++) {
|
|
guint32 index = 0;
|
|
guint64 media_start = 0, seg_time = 0;
|
|
QtDemuxStream *str = qtdemux->streams[n];
|
|
|
|
seg_idx = gst_qtdemux_find_segment (qtdemux, str, k_pos);
|
|
GST_DEBUG_OBJECT (qtdemux, "align segment %d", seg_idx);
|
|
|
|
/* segment not found, continue with normal flow */
|
|
if (seg_idx == -1)
|
|
continue;
|
|
|
|
/* 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 */
|
|
media_start = seg->media_start + seg_time;
|
|
|
|
/* get the index of the sample with media time */
|
|
index = gst_qtdemux_find_index (qtdemux, str, media_start);
|
|
GST_DEBUG_OBJECT (qtdemux, "sample for %" GST_TIME_FORMAT " at %u",
|
|
GST_TIME_ARGS (media_start), index);
|
|
|
|
/* find previous keyframe */
|
|
k_index = gst_qtdemux_find_keyframe (qtdemux, str, index);
|
|
|
|
/* Remember until where we want to go */
|
|
str->to_sample = str->from_sample - 1;
|
|
/* Define our time position */
|
|
str->time_position =
|
|
(str->samples[k_index].timestamp - seg->media_start) + seg->time;
|
|
/* Now seek back in time */
|
|
gst_qtdemux_move_stream (qtdemux, str, k_index);
|
|
GST_DEBUG_OBJECT (qtdemux, "keyframe at %u, time position %"
|
|
GST_TIME_FORMAT " playing from sample %u to %u", k_index,
|
|
GST_TIME_ARGS (str->time_position), str->from_sample, str->to_sample);
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
|
|
eos:
|
|
return GST_FLOW_UNEXPECTED;
|
|
}
|
|
|
|
/* 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, guint64 offset)
|
|
{
|
|
GstEvent *event;
|
|
QtDemuxSegment *segment;
|
|
guint32 index, kf_index;
|
|
guint64 seg_time;
|
|
guint64 start, stop, time;
|
|
gdouble rate;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "activate segment %d, offset %" G_GUINT64_FORMAT,
|
|
seg_idx, offset);
|
|
|
|
/* 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 (qtdemux, "offset < segment->time %" G_GUINT64_FORMAT,
|
|
segment->time);
|
|
return FALSE;
|
|
}
|
|
|
|
/* get time in this segment */
|
|
seg_time = offset - segment->time;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "seg_time %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (seg_time));
|
|
|
|
if (G_UNLIKELY (seg_time > segment->duration)) {
|
|
GST_LOG_OBJECT (qtdemux, "seg_time > segment->duration %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (segment->duration));
|
|
return FALSE;
|
|
}
|
|
|
|
/* 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 */
|
|
|
|
if (qtdemux->segment.stop == -1)
|
|
stop = segment->media_stop;
|
|
else
|
|
stop =
|
|
MIN (segment->media_stop,
|
|
qtdemux->segment.stop - segment->time + segment->media_start);
|
|
|
|
if (qtdemux->segment.rate >= 0) {
|
|
start = MIN (segment->media_start + seg_time, stop);
|
|
time = offset;
|
|
} else {
|
|
start = segment->media_start;
|
|
stop = MIN (segment->media_start + seg_time, stop);
|
|
time = segment->time;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "newsegment %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;
|
|
|
|
/* update the segment values used for clipping */
|
|
gst_segment_init (&stream->segment, GST_FORMAT_TIME);
|
|
gst_segment_set_newsegment (&stream->segment, FALSE, rate, GST_FORMAT_TIME,
|
|
start, stop, time);
|
|
|
|
/* now prepare and send the segment */
|
|
if (stream->pad) {
|
|
event = gst_event_new_new_segment (FALSE, rate, GST_FORMAT_TIME,
|
|
start, stop, time);
|
|
gst_pad_push_event (stream->pad, event);
|
|
/* assume we can send more data now */
|
|
stream->last_ret = GST_FLOW_OK;
|
|
}
|
|
|
|
/* and move to the keyframe before the indicated media time of the
|
|
* segment */
|
|
if (qtdemux->segment.rate >= 0) {
|
|
index = gst_qtdemux_find_index (qtdemux, stream, start);
|
|
stream->to_sample = stream->n_samples;
|
|
GST_DEBUG_OBJECT (qtdemux, "moving data pointer to %" GST_TIME_FORMAT
|
|
", index: %u, pts %" GST_TIME_FORMAT, GST_TIME_ARGS (start), index,
|
|
GST_TIME_ARGS (stream->samples[index].timestamp));
|
|
} else {
|
|
index = gst_qtdemux_find_index (qtdemux, stream, stop);
|
|
stream->to_sample = index;
|
|
GST_DEBUG_OBJECT (qtdemux, "moving data pointer to %" GST_TIME_FORMAT
|
|
", index: %u, pts %" GST_TIME_FORMAT, GST_TIME_ARGS (stop), index,
|
|
GST_TIME_ARGS (stream->samples[index].timestamp));
|
|
}
|
|
|
|
/* we're at the right spot */
|
|
if (index == stream->sample_index) {
|
|
GST_DEBUG_OBJECT (qtdemux, "we are at the right index");
|
|
return TRUE;
|
|
}
|
|
|
|
/* find keyframe of the target index */
|
|
kf_index = gst_qtdemux_find_keyframe (qtdemux, stream, 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 (qtdemux, "moving forwards to keyframe at %u (pts %"
|
|
GST_TIME_FORMAT, kf_index,
|
|
GST_TIME_ARGS (stream->samples[kf_index].timestamp));
|
|
gst_qtdemux_move_stream (qtdemux, stream, kf_index);
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "moving forwards, keyframe at %u (pts %"
|
|
GST_TIME_FORMAT " already sent", kf_index,
|
|
GST_TIME_ARGS (stream->samples[kf_index].timestamp));
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "moving backwards to keyframe at %u (pts %"
|
|
GST_TIME_FORMAT, kf_index,
|
|
GST_TIME_ARGS (stream->samples[kf_index].timestamp));
|
|
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.
|
|
*/
|
|
static gboolean
|
|
gst_qtdemux_prepare_current_sample (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream, guint64 * offset, guint * size, guint64 * timestamp,
|
|
guint64 * duration, gboolean * keyframe)
|
|
{
|
|
QtDemuxSample *sample;
|
|
guint64 time_position;
|
|
guint32 seg_idx;
|
|
|
|
g_return_val_if_fail (stream != NULL, FALSE);
|
|
|
|
time_position = stream->time_position;
|
|
if (G_UNLIKELY (time_position == -1))
|
|
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);
|
|
|
|
/* nothing found, we're really eos */
|
|
if (seg_idx == -1)
|
|
goto eos;
|
|
}
|
|
|
|
/* 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);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "segment active, index = %u of %u",
|
|
stream->sample_index, stream->n_samples);
|
|
|
|
/* 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;
|
|
}
|
|
gst_buffer_set_caps (buffer, stream->caps);
|
|
|
|
gst_pad_push (stream->pad, buffer);
|
|
|
|
stream->buffers = g_slist_delete_link (stream->buffers, stream->buffers);
|
|
}
|
|
|
|
if (G_UNLIKELY (stream->sample_index >= stream->n_samples))
|
|
goto eos;
|
|
|
|
/* now get the info for the sample we're at */
|
|
sample = &stream->samples[stream->sample_index];
|
|
|
|
*timestamp = sample->timestamp + sample->pts_offset;
|
|
*offset = sample->offset;
|
|
*size = sample->size;
|
|
*duration = sample->duration;
|
|
*keyframe = stream->all_keyframe || sample->keyframe;
|
|
|
|
/* add padding */
|
|
if (stream->padding) {
|
|
*offset += stream->padding;
|
|
*size -= stream->padding;
|
|
}
|
|
|
|
return TRUE;
|
|
|
|
/* special cases */
|
|
eos:
|
|
{
|
|
stream->time_position = -1;
|
|
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;
|
|
|
|
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 = -1;
|
|
return;
|
|
}
|
|
|
|
/* move to next sample */
|
|
stream->sample_index++;
|
|
|
|
/* get current segment */
|
|
segment = &stream->segments[stream->segment_index];
|
|
|
|
/* reached the last sample, we need the next segment */
|
|
if (G_UNLIKELY (stream->sample_index >= stream->n_samples))
|
|
goto next_segment;
|
|
|
|
/* get next sample */
|
|
sample = &stream->samples[stream->sample_index];
|
|
|
|
/* see if we are past the segment */
|
|
if (G_UNLIKELY (sample->timestamp >= segment->media_stop))
|
|
goto next_segment;
|
|
|
|
if (sample->timestamp >= segment->media_start) {
|
|
/* inside the segment, update time_position, looks very familiar to
|
|
* GStreamer segments, doesn't it? */
|
|
stream->time_position =
|
|
(sample->timestamp - 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 = -1;
|
|
} 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 */
|
|
stream->segment_index = -1;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gst_qtdemux_sync_streams (GstQTDemux * demux)
|
|
{
|
|
gint i;
|
|
|
|
if (demux->n_streams <= 1)
|
|
return;
|
|
|
|
for (i = 0; i < demux->n_streams; i++) {
|
|
QtDemuxStream *stream;
|
|
GstClockTime end_time;
|
|
|
|
stream = demux->streams[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->time_position != -1)
|
|
continue;
|
|
} else {
|
|
/* push mode is byte position based */
|
|
if (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 (end_time),
|
|
GST_TIME_ARGS (demux->segment.last_stop));
|
|
if (end_time + 2 * GST_SECOND < demux->segment.last_stop) {
|
|
GST_DEBUG_OBJECT (demux, "sending EOS for stream %s",
|
|
GST_PAD_NAME (stream->pad));
|
|
stream->sent_eos = TRUE;
|
|
gst_pad_push_event (stream->pad, gst_event_new_eos ());
|
|
}
|
|
}
|
|
}
|
|
|
|
/* UNEXPECTED and NOT_LINKED need to be combined. This means that we return:
|
|
*
|
|
* GST_FLOW_NOT_LINKED: when all pads NOT_LINKED.
|
|
* GST_FLOW_UNEXPECTED: when all pads UNEXPECTED or NOT_LINKED.
|
|
*/
|
|
static GstFlowReturn
|
|
gst_qtdemux_combine_flows (GstQTDemux * demux, QtDemuxStream * stream,
|
|
GstFlowReturn ret)
|
|
{
|
|
gint i;
|
|
gboolean unexpected = FALSE, not_linked = TRUE;
|
|
|
|
GST_LOG_OBJECT (demux, "flow return: %s", gst_flow_get_name (ret));
|
|
|
|
/* store the value */
|
|
stream->last_ret = ret;
|
|
|
|
for (i = 0; i < demux->n_streams; i++) {
|
|
QtDemuxStream *ostream = demux->streams[i];
|
|
|
|
ret = ostream->last_ret;
|
|
|
|
/* no unexpected or unlinked, return */
|
|
if (G_LIKELY (ret != GST_FLOW_UNEXPECTED && ret != GST_FLOW_NOT_LINKED))
|
|
goto done;
|
|
|
|
/* we check to see if we have at least 1 unexpected or all unlinked */
|
|
unexpected |= (ret == GST_FLOW_UNEXPECTED);
|
|
not_linked &= (ret == GST_FLOW_NOT_LINKED);
|
|
}
|
|
|
|
/* when we get here, we all have unlinked or unexpected */
|
|
if (not_linked)
|
|
ret = GST_FLOW_NOT_LINKED;
|
|
else if (unexpected)
|
|
ret = GST_FLOW_UNEXPECTED;
|
|
done:
|
|
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 cliped */
|
|
static GstBuffer *
|
|
gst_qtdemux_clip_buffer (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GstBuffer * buf)
|
|
{
|
|
gint64 start, stop, cstart, cstop, diff;
|
|
GstClockTime timestamp = GST_CLOCK_TIME_NONE, duration = GST_CLOCK_TIME_NONE;
|
|
guint8 *data;
|
|
guint size;
|
|
gint num_rate, denom_rate;
|
|
gint frame_size;
|
|
gboolean clip_data;
|
|
|
|
data = GST_BUFFER_DATA (buf);
|
|
size = GST_BUFFER_SIZE (buf);
|
|
|
|
/* depending on the type, setup the clip parameters */
|
|
if (stream->subtype == FOURCC_soun) {
|
|
frame_size = stream->bytes_per_frame;
|
|
num_rate = GST_SECOND;
|
|
denom_rate = (gint) stream->rate;
|
|
clip_data = TRUE;
|
|
} else if (stream->subtype == FOURCC_vide) {
|
|
frame_size = size;
|
|
num_rate = stream->fps_n;
|
|
denom_rate = stream->fps_d;
|
|
clip_data = FALSE;
|
|
} else
|
|
goto wrong_type;
|
|
|
|
/* we can only clip if we have a valid timestamp */
|
|
timestamp = GST_BUFFER_TIMESTAMP (buf);
|
|
if (G_UNLIKELY (!GST_CLOCK_TIME_IS_VALID (timestamp)))
|
|
goto no_timestamp;
|
|
|
|
if (G_LIKELY (GST_BUFFER_DURATION_IS_VALID (buf))) {
|
|
duration = GST_BUFFER_DURATION (buf);
|
|
} else {
|
|
duration =
|
|
gst_util_uint64_scale_int (size / frame_size, num_rate, denom_rate);
|
|
}
|
|
|
|
start = timestamp;
|
|
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) {
|
|
timestamp = cstart;
|
|
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);
|
|
|
|
data += 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;
|
|
}
|
|
}
|
|
|
|
GST_BUFFER_TIMESTAMP (buf) = timestamp;
|
|
GST_BUFFER_DURATION (buf) = duration;
|
|
GST_BUFFER_SIZE (buf) = size;
|
|
GST_BUFFER_DATA (buf) = data;
|
|
|
|
return buf;
|
|
|
|
/* dropped buffer */
|
|
wrong_type:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "unknown stream type");
|
|
return buf;
|
|
}
|
|
no_timestamp:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "no timestamp on buffer");
|
|
return buf;
|
|
}
|
|
clipped:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "clipped buffer");
|
|
gst_buffer_unref (buf);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_qtdemux_loop_state_movie (GstQTDemux * qtdemux)
|
|
{
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstBuffer *buf = NULL;
|
|
QtDemuxStream *stream;
|
|
guint64 min_time;
|
|
guint64 offset = 0;
|
|
guint64 timestamp = GST_CLOCK_TIME_NONE;
|
|
guint64 duration = 0;
|
|
gboolean keyframe = FALSE;
|
|
guint size = 0;
|
|
gint index;
|
|
gint i;
|
|
|
|
gst_qtdemux_push_pending_newsegment (qtdemux);
|
|
|
|
/* 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;
|
|
index = -1;
|
|
for (i = 0; i < qtdemux->n_streams; i++) {
|
|
guint64 position;
|
|
|
|
stream = qtdemux->streams[i];
|
|
position = stream->time_position;
|
|
|
|
/* position of -1 is EOS */
|
|
if (position != -1 && position < min_time) {
|
|
min_time = position;
|
|
index = i;
|
|
}
|
|
}
|
|
/* all are EOS */
|
|
if (G_UNLIKELY (index == -1)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "all streams are EOS");
|
|
goto eos;
|
|
}
|
|
|
|
/* check for segment end */
|
|
if (G_UNLIKELY (qtdemux->segment.stop != -1
|
|
&& qtdemux->segment.stop < min_time)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "we reached the end of our segment.");
|
|
goto eos;
|
|
}
|
|
|
|
stream = qtdemux->streams[index];
|
|
|
|
/* fetch info for the current sample of this stream */
|
|
if (G_UNLIKELY (!gst_qtdemux_prepare_current_sample (qtdemux, stream, &offset,
|
|
&size, ×tamp, &duration, &keyframe)))
|
|
goto eos_stream;
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"pushing from stream %d, offset %" G_GUINT64_FORMAT
|
|
", size %d, timestamp=%" GST_TIME_FORMAT ", duration %" GST_TIME_FORMAT,
|
|
index, offset, size, GST_TIME_ARGS (timestamp), GST_TIME_ARGS (duration));
|
|
|
|
/* hmm, empty sample, skip and move to next sample */
|
|
if (G_UNLIKELY (size <= 0))
|
|
goto next;
|
|
|
|
/* last pushed sample was out of boundary, goto next sample */
|
|
if (G_UNLIKELY (stream->last_ret == GST_FLOW_UNEXPECTED))
|
|
goto next;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "reading %d bytes @ %" G_GUINT64_FORMAT, size,
|
|
offset);
|
|
|
|
ret = gst_qtdemux_pull_atom (qtdemux, offset, size, &buf);
|
|
if (G_UNLIKELY (ret != GST_FLOW_OK))
|
|
goto beach;
|
|
|
|
if (G_UNLIKELY (stream->fourcc == FOURCC_rtsp)) {
|
|
GstMessage *m;
|
|
gchar *url;
|
|
|
|
url = g_strndup ((gchar *) GST_BUFFER_DATA (buf), GST_BUFFER_SIZE (buf));
|
|
|
|
/* we have RTSP redirect now */
|
|
m = gst_message_new_element (GST_OBJECT_CAST (qtdemux),
|
|
gst_structure_new ("redirect",
|
|
"new-location", G_TYPE_STRING, url, NULL));
|
|
g_free (url);
|
|
|
|
gst_element_post_message (GST_ELEMENT_CAST (qtdemux), m);
|
|
}
|
|
|
|
qtdemux->last_ts = min_time;
|
|
if (qtdemux->segment.rate >= 0) {
|
|
gst_segment_set_last_stop (&qtdemux->segment, GST_FORMAT_TIME, min_time);
|
|
gst_qtdemux_sync_streams (qtdemux);
|
|
}
|
|
if (G_LIKELY (stream->pad)) {
|
|
/* we're going to modify the metadata */
|
|
buf = gst_buffer_make_metadata_writable (buf);
|
|
|
|
GST_BUFFER_TIMESTAMP (buf) = timestamp;
|
|
GST_BUFFER_DURATION (buf) = duration;
|
|
GST_BUFFER_OFFSET (buf) = -1;
|
|
GST_BUFFER_OFFSET_END (buf) = -1;
|
|
|
|
if (stream->need_clip)
|
|
buf = gst_qtdemux_clip_buffer (qtdemux, stream, buf);
|
|
|
|
if (buf == NULL)
|
|
goto next;
|
|
|
|
if (stream->discont) {
|
|
GST_LOG_OBJECT (qtdemux, "marking discont buffer");
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DISCONT);
|
|
stream->discont = FALSE;
|
|
}
|
|
|
|
if (!keyframe)
|
|
GST_BUFFER_FLAG_SET (buf, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
|
|
gst_buffer_set_caps (buf, stream->caps);
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"Pushing buffer with time %" GST_TIME_FORMAT ", duration %"
|
|
GST_TIME_FORMAT " on pad %s",
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (buf)),
|
|
GST_TIME_ARGS (GST_BUFFER_DURATION (buf)), GST_PAD_NAME (stream->pad));
|
|
|
|
ret = gst_pad_push (stream->pad, buf);
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "No output pad for stream, ignoring");
|
|
gst_buffer_unref (buf);
|
|
ret = GST_FLOW_OK;
|
|
}
|
|
|
|
/* combine flows */
|
|
ret = gst_qtdemux_combine_flows (qtdemux, stream, ret);
|
|
/* 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_UNEXPECTED)
|
|
ret = GST_FLOW_OK;
|
|
|
|
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_UNEXPECTED;
|
|
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 %d",
|
|
cur_offset, 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_UNEXPECTED) {
|
|
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"));
|
|
qtdemux->segment_running = FALSE;
|
|
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);
|
|
|
|
qtdemux->segment_running = FALSE;
|
|
gst_pad_pause_task (pad);
|
|
|
|
/* fatal errors need special actions */
|
|
if (GST_FLOW_IS_FATAL (ret) || ret == GST_FLOW_NOT_LINKED) {
|
|
/* check EOS */
|
|
if (ret == GST_FLOW_UNEXPECTED) {
|
|
if (qtdemux->n_streams == 0) {
|
|
/* we have no streams, post an error */
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DECODE,
|
|
(_("This file contains no playable streams.")),
|
|
("no known streams found"));
|
|
}
|
|
if (qtdemux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
|
|
gint64 stop;
|
|
|
|
/* FIXME: I am not sure this is the right fix. If the sinks are
|
|
* supposed to detect the segment is complete and accumulate
|
|
* automatically, it does not seem to work here. Need more work */
|
|
qtdemux->segment_running = TRUE;
|
|
|
|
if ((stop = qtdemux->segment.stop) == -1)
|
|
stop = qtdemux->segment.duration;
|
|
|
|
if (qtdemux->segment.rate >= 0) {
|
|
GST_LOG_OBJECT (qtdemux, "Sending segment done, at end of segment");
|
|
gst_element_post_message (GST_ELEMENT_CAST (qtdemux),
|
|
gst_message_new_segment_done (GST_OBJECT_CAST (qtdemux),
|
|
GST_FORMAT_TIME, stop));
|
|
} else {
|
|
/* For Reverse Playback */
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"Sending segment done, at start of segment");
|
|
gst_element_post_message (GST_ELEMENT_CAST (qtdemux),
|
|
gst_message_new_segment_done (GST_OBJECT_CAST (qtdemux),
|
|
GST_FORMAT_TIME, qtdemux->segment.start));
|
|
}
|
|
} else {
|
|
GST_LOG_OBJECT (qtdemux, "Sending EOS at end of segment");
|
|
gst_qtdemux_push_event (qtdemux, gst_event_new_eos ());
|
|
}
|
|
} else {
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, FAILED,
|
|
(NULL), ("streaming stopped, reason %s", reason));
|
|
gst_qtdemux_push_event (qtdemux, gst_event_new_eos ());
|
|
}
|
|
}
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
int i;
|
|
int smallidx = -1;
|
|
guint64 smalloffs = (guint64) - 1;
|
|
|
|
GST_LOG_OBJECT (demux, "Finding entry at offset %lld", demux->offset);
|
|
|
|
for (i = 0; i < demux->n_streams; i++) {
|
|
stream = demux->streams[i];
|
|
|
|
if (stream->sample_index == -1)
|
|
stream->sample_index = 0;
|
|
|
|
if (stream->sample_index >= stream->n_samples) {
|
|
GST_LOG_OBJECT (demux, "stream %d samples exhausted", i);
|
|
continue;
|
|
}
|
|
|
|
GST_LOG_OBJECT (demux,
|
|
"Checking Stream %d (sample_index:%d / offset:%lld / size:%d)",
|
|
i, stream->sample_index, stream->samples[stream->sample_index].offset,
|
|
stream->samples[stream->sample_index].size);
|
|
|
|
if (((smalloffs == -1)
|
|
|| (stream->samples[stream->sample_index].offset < smalloffs))
|
|
&& (stream->samples[stream->sample_index].size)) {
|
|
smallidx = i;
|
|
smalloffs = stream->samples[stream->sample_index].offset;
|
|
}
|
|
}
|
|
|
|
GST_LOG_OBJECT (demux, "stream %d offset %lld demux->offset :%lld",
|
|
smallidx, smalloffs, demux->offset);
|
|
|
|
if (smallidx == -1)
|
|
return -1;
|
|
stream = demux->streams[smallidx];
|
|
|
|
if (stream->samples[stream->sample_index].offset >= demux->offset) {
|
|
demux->todrop =
|
|
stream->samples[stream->sample_index].offset - demux->offset;
|
|
return stream->samples[stream->sample_index].size + demux->todrop;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "There wasn't any entry at offset %lld",
|
|
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)));
|
|
}
|
|
|
|
/* FIXME, unverified after edit list updates */
|
|
static GstFlowReturn
|
|
gst_qtdemux_chain (GstPad * sinkpad, GstBuffer * inbuf)
|
|
{
|
|
GstQTDemux *demux;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
demux = GST_QTDEMUX (gst_pad_get_parent (sinkpad));
|
|
|
|
gst_adapter_push (demux->adapter, inbuf);
|
|
|
|
/* we never really mean to buffer that much */
|
|
if (demux->neededbytes == -1)
|
|
goto eos;
|
|
|
|
GST_DEBUG_OBJECT (demux, "pushing in inbuf %p, neededbytes:%u, available:%u",
|
|
inbuf, demux->neededbytes, gst_adapter_available (demux->adapter));
|
|
|
|
while (((gst_adapter_available (demux->adapter)) >= demux->neededbytes) &&
|
|
(ret == GST_FLOW_OK)) {
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"state:%d , demux->neededbytes:%d, demux->offset:%lld", demux->state,
|
|
demux->neededbytes, demux->offset);
|
|
|
|
switch (demux->state) {
|
|
case QTDEMUX_STATE_INITIAL:{
|
|
const guint8 *data;
|
|
guint32 fourcc;
|
|
guint64 size;
|
|
|
|
data = gst_adapter_peek (demux->adapter, demux->neededbytes);
|
|
|
|
/* get fourcc/length, set neededbytes */
|
|
extract_initial_length_and_fourcc ((guint8 *) data, &size, &fourcc);
|
|
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, DECODE,
|
|
(_("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) {
|
|
if (demux->n_streams > 0) {
|
|
demux->state = QTDEMUX_STATE_MOVIE;
|
|
demux->neededbytes = next_entry_size (demux);
|
|
} else {
|
|
guint bs;
|
|
|
|
buffer_data:
|
|
/* there may be multiple mdat (or alike) buffers */
|
|
/* sanity check */
|
|
if (demux->mdatbuffer)
|
|
bs = GST_BUFFER_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, DECODE,
|
|
(_("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))
|
|
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_peek (demux->adapter, demux->neededbytes);
|
|
|
|
/* parse the header */
|
|
extract_initial_length_and_fourcc (data, NULL, &fourcc);
|
|
if (fourcc == FOURCC_moov) {
|
|
GST_DEBUG_OBJECT (demux, "Parsing [moov]");
|
|
|
|
qtdemux_parse_moov (demux, data, demux->neededbytes);
|
|
qtdemux_node_dump (demux, demux->moov_node);
|
|
qtdemux_parse_tree (demux);
|
|
|
|
g_node_destroy (demux->moov_node);
|
|
demux->moov_node = NULL;
|
|
GST_DEBUG_OBJECT (demux, "Finished parsing the header");
|
|
}
|
|
if (fourcc == FOURCC_ftyp) {
|
|
GST_DEBUG_OBJECT (demux, "Parsing [ftyp]");
|
|
qtdemux_parse_ftyp (demux, data, demux->neededbytes);
|
|
} else {
|
|
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 */
|
|
}
|
|
|
|
if (demux->mdatbuffer && demux->n_streams) {
|
|
GstBuffer *buf;
|
|
|
|
/* the mdat was before the header */
|
|
GST_DEBUG_OBJECT (demux, "We have n_streams:%d and mdatbuffer:%p",
|
|
demux->n_streams, 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 */
|
|
buf = gst_adapter_take_buffer (demux->adapter,
|
|
gst_adapter_available (demux->adapter));
|
|
gst_adapter_clear (demux->adapter);
|
|
gst_adapter_push (demux->adapter, demux->mdatbuffer);
|
|
gst_adapter_push (demux->adapter, buf);
|
|
demux->mdatbuffer = NULL;
|
|
demux->offset = demux->mdatoffset;
|
|
demux->neededbytes = next_entry_size (demux);
|
|
demux->state = QTDEMUX_STATE_MOVIE;
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "Carrying on normally");
|
|
gst_adapter_flush (demux->adapter, demux->neededbytes);
|
|
demux->offset += demux->neededbytes;
|
|
demux->neededbytes = 16;
|
|
demux->state = QTDEMUX_STATE_INITIAL;
|
|
}
|
|
|
|
break;
|
|
}
|
|
case QTDEMUX_STATE_BUFFER_MDAT:{
|
|
GstBuffer *buf;
|
|
|
|
GST_DEBUG_OBJECT (demux, "Got our buffer at offset %lld",
|
|
demux->offset);
|
|
buf = gst_adapter_take_buffer (demux->adapter, demux->neededbytes);
|
|
GST_DEBUG_OBJECT (demux, "mdatbuffer starts with %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (QT_FOURCC (GST_BUFFER_DATA (buf) + 4)));
|
|
if (demux->mdatbuffer)
|
|
demux->mdatbuffer = gst_buffer_join (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:{
|
|
GstBuffer *outbuf;
|
|
QtDemuxStream *stream = NULL;
|
|
int i = -1;
|
|
|
|
GST_DEBUG_OBJECT (demux, "BEGIN // in MOVIE for offset %lld",
|
|
demux->offset);
|
|
|
|
if (demux->todrop) {
|
|
GST_LOG_OBJECT (demux, "Dropping %d bytes", demux->todrop);
|
|
gst_adapter_flush (demux->adapter, demux->todrop);
|
|
demux->neededbytes -= demux->todrop;
|
|
demux->offset += demux->todrop;
|
|
}
|
|
|
|
/* Figure out which stream this is packet belongs to */
|
|
for (i = 0; i < demux->n_streams; i++) {
|
|
stream = demux->streams[i];
|
|
if (stream->sample_index >= stream->n_samples)
|
|
continue;
|
|
GST_LOG_OBJECT (demux,
|
|
"Checking stream %d (sample_index:%d / offset:%lld / size:%d)",
|
|
i, 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 || i == demux->n_streams))
|
|
goto unknown_stream;
|
|
|
|
/* first buffer? */
|
|
/* initial newsegment sent here after having added pads,
|
|
* possible others in sink_event */
|
|
if (G_UNLIKELY (demux->last_ts == GST_CLOCK_TIME_NONE)) {
|
|
gst_qtdemux_push_event (demux,
|
|
gst_event_new_new_segment (FALSE, 1.0, GST_FORMAT_TIME,
|
|
0, GST_CLOCK_TIME_NONE, 0));
|
|
}
|
|
|
|
/* Put data in a buffer, set timestamps, caps, ... */
|
|
outbuf = gst_adapter_take_buffer (demux->adapter, demux->neededbytes);
|
|
GST_DEBUG_OBJECT (demux, "stream : %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (stream->fourcc));
|
|
|
|
g_return_val_if_fail (outbuf != NULL, GST_FLOW_ERROR);
|
|
|
|
if (stream->samples[stream->sample_index].pts_offset) {
|
|
demux->last_ts = stream->samples[stream->sample_index].timestamp;
|
|
GST_BUFFER_TIMESTAMP (outbuf) = demux->last_ts +
|
|
stream->samples[stream->sample_index].pts_offset;
|
|
} else {
|
|
GST_BUFFER_TIMESTAMP (outbuf) =
|
|
stream->samples[stream->sample_index].timestamp;
|
|
demux->last_ts = GST_BUFFER_TIMESTAMP (outbuf);
|
|
}
|
|
GST_BUFFER_DURATION (outbuf) =
|
|
stream->samples[stream->sample_index].duration;
|
|
if (!stream->all_keyframe &&
|
|
!stream->samples[stream->sample_index].keyframe)
|
|
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
|
|
/* position reporting */
|
|
gst_segment_set_last_stop (&demux->segment, GST_FORMAT_TIME,
|
|
demux->last_ts);
|
|
gst_qtdemux_sync_streams (demux);
|
|
|
|
/* send buffer */
|
|
if (stream->pad) {
|
|
GST_LOG_OBJECT (demux,
|
|
"Pushing buffer with time %" GST_TIME_FORMAT " on pad %p",
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (outbuf)), stream->pad);
|
|
gst_buffer_set_caps (outbuf, stream->caps);
|
|
ret = gst_pad_push (stream->pad, outbuf);
|
|
} else {
|
|
gst_buffer_unref (outbuf);
|
|
ret = GST_FLOW_OK;
|
|
}
|
|
|
|
/* combine flows */
|
|
ret = gst_qtdemux_combine_flows (demux, stream, ret);
|
|
|
|
stream->sample_index++;
|
|
|
|
/* 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 %lld", demux->offset);
|
|
|
|
if ((demux->neededbytes = next_entry_size (demux)) == -1)
|
|
goto eos;
|
|
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:
|
|
gst_object_unref (demux);
|
|
|
|
return ret;
|
|
|
|
/* ERRORS */
|
|
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_UNEXPECTED;
|
|
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 withing first 10 MB"));
|
|
ret = GST_FLOW_ERROR;
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_sink_activate (GstPad * sinkpad)
|
|
{
|
|
if (gst_pad_check_pull_range (sinkpad))
|
|
return gst_pad_activate_pull (sinkpad, TRUE);
|
|
else
|
|
return gst_pad_activate_push (sinkpad, TRUE);
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_sink_activate_pull (GstPad * sinkpad, gboolean active)
|
|
{
|
|
GstQTDemux *demux = GST_QTDEMUX (GST_PAD_PARENT (sinkpad));
|
|
|
|
if (active) {
|
|
demux->pullbased = TRUE;
|
|
demux->segment_running = TRUE;
|
|
return gst_pad_start_task (sinkpad, (GstTaskFunction) gst_qtdemux_loop,
|
|
sinkpad);
|
|
} else {
|
|
demux->segment_running = FALSE;
|
|
return gst_pad_stop_task (sinkpad);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_sink_activate_push (GstPad * sinkpad, gboolean active)
|
|
{
|
|
GstQTDemux *demux = GST_QTDEMUX (GST_PAD_PARENT (sinkpad));
|
|
|
|
demux->pullbased = FALSE;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
#ifdef HAVE_ZLIB
|
|
static void *
|
|
qtdemux_zalloc (void *opaque, unsigned int items, unsigned int size)
|
|
{
|
|
return g_malloc (items * size);
|
|
}
|
|
|
|
static void
|
|
qtdemux_zfree (void *opaque, void *addr)
|
|
{
|
|
g_free (addr);
|
|
}
|
|
|
|
static void *
|
|
qtdemux_inflate (void *z_buffer, int z_length, int length)
|
|
{
|
|
guint8 *buffer;
|
|
z_stream *z;
|
|
int ret;
|
|
|
|
z = g_new0 (z_stream, 1);
|
|
z->zalloc = qtdemux_zalloc;
|
|
z->zfree = qtdemux_zfree;
|
|
z->opaque = NULL;
|
|
|
|
z->next_in = z_buffer;
|
|
z->avail_in = z_length;
|
|
|
|
buffer = (guint8 *) g_malloc (length);
|
|
ret = inflateInit (z);
|
|
while (z->avail_in > 0) {
|
|
if (z->avail_out == 0) {
|
|
length += 1024;
|
|
buffer = (guint8 *) g_realloc (buffer, length);
|
|
z->next_out = buffer + z->total_out;
|
|
z->avail_out = 1024;
|
|
}
|
|
ret = inflate (z, Z_SYNC_FLUSH);
|
|
if (ret != Z_OK)
|
|
break;
|
|
}
|
|
if (ret != Z_STREAM_END) {
|
|
g_warning ("inflate() returned %d", ret);
|
|
}
|
|
|
|
g_free (z);
|
|
return buffer;
|
|
}
|
|
#endif /* HAVE_ZLIB */
|
|
|
|
static gboolean
|
|
qtdemux_parse_moov (GstQTDemux * qtdemux, const guint8 * buffer, int length)
|
|
{
|
|
GNode *cmov;
|
|
|
|
qtdemux->moov_node = g_node_new ((guint8 *) buffer);
|
|
|
|
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;
|
|
|
|
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;
|
|
|
|
method = QT_FOURCC ((guint8 *) dcom->data + 8);
|
|
switch (method) {
|
|
#ifdef HAVE_ZLIB
|
|
case GST_MAKE_FOURCC ('z', 'l', 'i', 'b'):{
|
|
int uncompressed_length;
|
|
int compressed_length;
|
|
guint8 *buf;
|
|
|
|
uncompressed_length = QT_UINT32 ((guint8 *) cmvd->data + 8);
|
|
compressed_length = QT_UINT32 ((guint8 *) cmvd->data + 4) - 12;
|
|
GST_LOG ("length = %d", uncompressed_length);
|
|
|
|
buf =
|
|
(guint8 *) qtdemux_inflate ((guint8 *) cmvd->data + 12,
|
|
compressed_length, uncompressed_length);
|
|
|
|
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, end - buf);
|
|
break;
|
|
}
|
|
|
|
child = g_node_new ((guint8 *) buf);
|
|
g_node_append (node, child);
|
|
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);
|
|
memcpy (GST_BUFFER_DATA (buffer), 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);
|
|
memcpy (GST_BUFFER_DATA (buffer), 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);
|
|
memcpy (GST_BUFFER_DATA (buffer), 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,
|
|
int length)
|
|
{
|
|
guint32 fourcc;
|
|
guint32 node_length;
|
|
const QtNodeType *type;
|
|
const guint8 *end;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "qtdemux_parse buffer %p length %d", buffer, length);
|
|
|
|
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=%d, name '%s'",
|
|
GST_FOURCC_ARGS (fourcc), node_length, type->name);
|
|
|
|
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");
|
|
qtdemux_parse_container (qtdemux, node, buffer + 16, end);
|
|
break;
|
|
}
|
|
case FOURCC_mp4a:
|
|
{
|
|
guint32 version;
|
|
guint32 offset;
|
|
|
|
if (length < 20) {
|
|
/* small boxes are also inside wave inside the mp4a box */
|
|
GST_LOG_OBJECT (qtdemux, "skipping small mp4a box");
|
|
break;
|
|
}
|
|
version = QT_UINT32 (buffer + 16);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "mp4a version 0x%08x", version);
|
|
|
|
/* parse any esds descriptors */
|
|
switch (version) {
|
|
case 0x00000000:
|
|
offset = 0x24;
|
|
break;
|
|
case 0x00010000:
|
|
offset = 0x34;
|
|
break;
|
|
case 0x00020000:
|
|
offset = 0x58;
|
|
break;
|
|
default:
|
|
GST_WARNING_OBJECT (qtdemux, "unhandled mp4a version 0x%08x",
|
|
version);
|
|
offset = 0;
|
|
break;
|
|
}
|
|
if (offset)
|
|
qtdemux_parse_container (qtdemux, node, buffer + offset, end);
|
|
break;
|
|
}
|
|
case FOURCC_mp4v:
|
|
{
|
|
const guint8 *buf;
|
|
guint32 version;
|
|
int tlen;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing in mp4v");
|
|
version = QT_UINT32 (buffer + 16);
|
|
GST_DEBUG_OBJECT (qtdemux, "version %08x", version);
|
|
if (1 || version == 0x00000000) {
|
|
buf = buffer + 0x32;
|
|
|
|
/* FIXME Quicktime uses PASCAL string while
|
|
* the iso format uses C strings. Check the file
|
|
* type before attempting to parse the string here. */
|
|
tlen = QT_UINT8 (buf);
|
|
GST_DEBUG_OBJECT (qtdemux, "tlen = %d", tlen);
|
|
buf++;
|
|
GST_DEBUG_OBJECT (qtdemux, "string = %.*s", tlen, (char *) buf);
|
|
/* the string has a reserved space of 32 bytes so skip
|
|
* the remaining 31 */
|
|
buf += 31;
|
|
buf += 4; /* and 4 bytes reserved */
|
|
|
|
GST_MEMDUMP_OBJECT (qtdemux, "mp4v", buf, end - buf);
|
|
|
|
qtdemux_parse_container (qtdemux, node, buf, end);
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_mjp2:
|
|
{
|
|
qtdemux_parse_container (qtdemux, node, buffer + 86, end);
|
|
break;
|
|
}
|
|
case FOURCC_meta:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "parsing meta atom");
|
|
qtdemux_parse_container (qtdemux, node, buffer + 12, end);
|
|
break;
|
|
}
|
|
case FOURCC_XiTh:
|
|
{
|
|
guint32 version;
|
|
guint32 offset;
|
|
|
|
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)
|
|
qtdemux_parse_container (qtdemux, node, buffer + offset, end);
|
|
break;
|
|
}
|
|
case FOURCC_in24:
|
|
{
|
|
qtdemux_parse_container (qtdemux, node, buffer + 0x34, 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;
|
|
}
|
|
|
|
static GNode *
|
|
qtdemux_tree_get_child_by_type (GNode * node, guint32 fourcc)
|
|
{
|
|
GNode *child;
|
|
guint8 *buffer;
|
|
guint32 child_fourcc;
|
|
|
|
for (child = g_node_first_child (node); child;
|
|
child = g_node_next_sibling (child)) {
|
|
buffer = (guint8 *) child->data;
|
|
|
|
child_fourcc = QT_FOURCC (buffer + 4);
|
|
|
|
if (G_UNLIKELY (child_fourcc == fourcc)) {
|
|
return child;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static GNode *
|
|
qtdemux_tree_get_sibling_by_type (GNode * node, guint32 fourcc)
|
|
{
|
|
GNode *child;
|
|
guint8 *buffer;
|
|
guint32 child_fourcc;
|
|
|
|
for (child = g_node_next_sibling (node); child;
|
|
child = g_node_next_sibling (child)) {
|
|
buffer = (guint8 *) child->data;
|
|
|
|
child_fourcc = QT_FOURCC (buffer + 4);
|
|
|
|
if (child_fourcc == fourcc) {
|
|
return child;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static gboolean
|
|
gst_qtdemux_add_stream (GstQTDemux * qtdemux,
|
|
QtDemuxStream * stream, GstTagList * list)
|
|
{
|
|
if (qtdemux->n_streams >= GST_QTDEMUX_MAX_STREAMS)
|
|
goto too_many_streams;
|
|
|
|
if (stream->subtype == FOURCC_vide) {
|
|
gchar *name = g_strdup_printf ("video_%02d", qtdemux->n_video_streams);
|
|
|
|
stream->pad =
|
|
gst_pad_new_from_static_template (&gst_qtdemux_videosrc_template, name);
|
|
g_free (name);
|
|
|
|
/* fps is calculated base on the duration of the first frames since
|
|
* qt does not have a fixed framerate. */
|
|
if ((stream->n_samples == 1) && (stream->min_duration == 0)) {
|
|
/* still frame */
|
|
stream->fps_n = 0;
|
|
stream->fps_d = 1;
|
|
} else {
|
|
stream->fps_n = stream->timescale;
|
|
if (stream->min_duration == 0)
|
|
stream->fps_d = 1;
|
|
else
|
|
stream->fps_d = stream->min_duration;
|
|
}
|
|
|
|
if (stream->caps) {
|
|
gboolean gray;
|
|
gint depth, palette_count;
|
|
const guint32 *palette_data = NULL;
|
|
|
|
gst_caps_set_simple (stream->caps,
|
|
"width", G_TYPE_INT, stream->width,
|
|
"height", G_TYPE_INT, stream->height,
|
|
"framerate", GST_TYPE_FRACTION, stream->fps_n, stream->fps_d, NULL);
|
|
|
|
/* iso files:
|
|
* calculate pixel-aspect-ratio using display width and height */
|
|
if (qtdemux->major_brand != FOURCC_qt__) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"video size %dx%d, target display size %dx%d", stream->width,
|
|
stream->height, stream->display_width, stream->display_height);
|
|
|
|
if (stream->display_width > 0 && stream->display_height > 0 &&
|
|
stream->width > 0 && stream->height > 0) {
|
|
gint n, d;
|
|
|
|
/* calculate the pixel aspect ratio using the display and pixel w/h */
|
|
n = stream->display_width * stream->height;
|
|
d = stream->display_height * stream->width;
|
|
if (n != d) {
|
|
GST_DEBUG_OBJECT (qtdemux, "setting PAR to %d/%d", n, d);
|
|
gst_caps_set_simple (stream->caps, "pixel-aspect-ratio",
|
|
GST_TYPE_FRACTION, n, d, NULL);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* qt file might have pasp atom */
|
|
if (stream->par_w > 0 && stream->par_h > 0) {
|
|
GST_DEBUG_OBJECT (qtdemux, "par %d:%d", stream->par_w, stream->par_h);
|
|
gst_caps_set_simple (stream->caps, "pixel-aspect-ratio",
|
|
GST_TYPE_FRACTION, stream->par_w, stream->par_h, NULL);
|
|
}
|
|
|
|
depth = stream->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);
|
|
|
|
switch (palette_count) {
|
|
case 0:
|
|
break;
|
|
case 2:
|
|
palette_data = ff_qt_default_palette_2;
|
|
break;
|
|
case 4:
|
|
palette_data = ff_qt_default_palette_4;
|
|
break;
|
|
case 16:
|
|
if (gray)
|
|
palette_data = ff_qt_grayscale_palette_16;
|
|
else
|
|
palette_data = ff_qt_default_palette_16;
|
|
break;
|
|
case 256:
|
|
if (gray)
|
|
palette_data = ff_qt_grayscale_palette_256;
|
|
else
|
|
palette_data = ff_qt_default_palette_256;
|
|
break;
|
|
default:
|
|
GST_ELEMENT_WARNING (qtdemux, STREAM, DECODE,
|
|
(_("The video in this file might not play correctly.")),
|
|
("unsupported palette depth %d", depth));
|
|
break;
|
|
}
|
|
if (palette_data) {
|
|
GstBuffer *palette;
|
|
|
|
/* make sure it's not writable. We leave MALLOCDATA to NULL so that we
|
|
* don't free any of the buffer data. */
|
|
palette = gst_buffer_new ();
|
|
GST_BUFFER_FLAG_SET (palette, GST_BUFFER_FLAG_READONLY);
|
|
GST_BUFFER_DATA (palette) = (guint8 *) palette_data;
|
|
GST_BUFFER_SIZE (palette) = sizeof (guint32) * palette_count;
|
|
|
|
gst_caps_set_simple (stream->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. Ignoring stream.", depth));
|
|
|
|
gst_object_unref (stream->pad);
|
|
stream->pad = NULL;
|
|
}
|
|
}
|
|
qtdemux->n_video_streams++;
|
|
} else if (stream->subtype == FOURCC_soun) {
|
|
gchar *name = g_strdup_printf ("audio_%02d", qtdemux->n_audio_streams);
|
|
|
|
stream->pad =
|
|
gst_pad_new_from_static_template (&gst_qtdemux_audiosrc_template, name);
|
|
g_free (name);
|
|
if (stream->caps) {
|
|
gst_caps_set_simple (stream->caps,
|
|
"rate", G_TYPE_INT, (int) stream->rate,
|
|
"channels", G_TYPE_INT, stream->n_channels, NULL);
|
|
}
|
|
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) {
|
|
gchar *name = g_strdup_printf ("subp_%02d", qtdemux->n_subp_streams);
|
|
|
|
stream->pad =
|
|
gst_pad_new_from_static_template (&gst_qtdemux_subpsrc_template, name);
|
|
g_free (name);
|
|
qtdemux->n_subp_streams++;
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "unknown stream type");
|
|
goto done;
|
|
}
|
|
|
|
qtdemux->streams[qtdemux->n_streams] = stream;
|
|
qtdemux->n_streams++;
|
|
GST_DEBUG_OBJECT (qtdemux, "n_streams is now %d", qtdemux->n_streams);
|
|
|
|
if (stream->pad) {
|
|
GST_PAD_ELEMENT_PRIVATE (stream->pad) = stream;
|
|
|
|
gst_pad_use_fixed_caps (stream->pad);
|
|
gst_pad_set_event_function (stream->pad, gst_qtdemux_handle_src_event);
|
|
gst_pad_set_query_type_function (stream->pad,
|
|
gst_qtdemux_get_src_query_types);
|
|
gst_pad_set_query_function (stream->pad, gst_qtdemux_handle_src_query);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "setting caps %" GST_PTR_FORMAT, stream->caps);
|
|
gst_pad_set_caps (stream->pad, stream->caps);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "adding pad %s %p to qtdemux %p",
|
|
GST_OBJECT_NAME (stream->pad), stream->pad, qtdemux);
|
|
gst_pad_set_active (stream->pad, TRUE);
|
|
gst_element_add_pad (GST_ELEMENT_CAST (qtdemux), stream->pad);
|
|
if (list)
|
|
gst_element_found_tags_for_pad (GST_ELEMENT_CAST (qtdemux), stream->pad,
|
|
list);
|
|
}
|
|
done:
|
|
return TRUE;
|
|
|
|
too_many_streams:
|
|
{
|
|
GST_ELEMENT_WARNING (qtdemux, STREAM, DECODE,
|
|
(_("This file contains too many streams. Only playing first %d"),
|
|
GST_QTDEMUX_MAX_STREAMS), (NULL));
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
/* collect all samples for @stream by reading the info from @stbl
|
|
*/
|
|
static gboolean
|
|
qtdemux_parse_samples (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GNode * stbl)
|
|
{
|
|
GNode *stsc;
|
|
GNode *stsz;
|
|
GNode *stco;
|
|
GNode *co64;
|
|
GNode *stts;
|
|
GNode *stss;
|
|
GNode *stps;
|
|
GNode *ctts;
|
|
const guint8 *stsc_data, *stsz_data, *stco_data, *co64_data, *stts_data;
|
|
int sample_size;
|
|
int sample_index;
|
|
int n_samples;
|
|
int n_samples_per_chunk;
|
|
int n_sample_times;
|
|
QtDemuxSample *samples;
|
|
gint i, j, k;
|
|
int index;
|
|
guint64 timestamp, time;
|
|
|
|
/* sample to chunk */
|
|
if (!(stsc = qtdemux_tree_get_child_by_type (stbl, FOURCC_stsc)))
|
|
goto corrupt_file;
|
|
stsc_data = (const guint8 *) stsc->data;
|
|
|
|
/* sample size */
|
|
if (!(stsz = qtdemux_tree_get_child_by_type (stbl, FOURCC_stsz)))
|
|
goto corrupt_file;
|
|
stsz_data = (const guint8 *) stsz->data;
|
|
|
|
/* chunk offsets */
|
|
stco = qtdemux_tree_get_child_by_type (stbl, FOURCC_stco);
|
|
co64 = qtdemux_tree_get_child_by_type (stbl, FOURCC_co64);
|
|
if (stco) {
|
|
stco_data = (const guint8 *) stco->data;
|
|
co64_data = NULL;
|
|
} else {
|
|
stco_data = NULL;
|
|
if (co64 == NULL)
|
|
goto corrupt_file;
|
|
co64_data = (const guint8 *) co64->data;
|
|
}
|
|
/* sample time */
|
|
if (!(stts = qtdemux_tree_get_child_by_type (stbl, FOURCC_stts)))
|
|
goto corrupt_file;
|
|
stts_data = (const guint8 *) stts->data;
|
|
|
|
sample_size = QT_UINT32 (stsz_data + 12);
|
|
if (sample_size == 0 || stream->sampled) {
|
|
n_samples = QT_UINT32 (stsz_data + 16);
|
|
|
|
if (n_samples == 0)
|
|
goto no_samples;
|
|
else if (n_samples < 0)
|
|
goto corrupt_file;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "stsz sample_size 0, allocating n_samples %d",
|
|
n_samples);
|
|
|
|
samples = g_try_new0 (QtDemuxSample, n_samples);
|
|
if (samples == NULL)
|
|
goto out_of_memory;
|
|
|
|
stream->n_samples = n_samples;
|
|
stream->samples = samples;
|
|
|
|
/* set the sample sizes */
|
|
if (sample_size == 0) {
|
|
const guint8 *stsz_p = stsz_data + 20;
|
|
/* different sizes for each sample */
|
|
for (i = 0; i < n_samples; i++) {
|
|
samples[i].size = QT_UINT32 (stsz_p);
|
|
GST_LOG_OBJECT (qtdemux, "sample %d has size %d", i, samples[i].size);
|
|
stsz_p += 4;
|
|
}
|
|
} else {
|
|
/* samples have the same size */
|
|
GST_LOG_OBJECT (qtdemux, "all samples have size %d", sample_size);
|
|
for (i = 0; i < n_samples; i++)
|
|
samples[i].size = sample_size;
|
|
}
|
|
|
|
/* set the sample offsets in the file */
|
|
n_samples_per_chunk = QT_UINT32 (stsc_data + 12);
|
|
index = 0;
|
|
for (i = 0; i < n_samples_per_chunk; i++) {
|
|
guint32 first_chunk, last_chunk;
|
|
guint32 samples_per_chunk;
|
|
|
|
first_chunk = QT_UINT32 (stsc_data + 16 + i * 12 + 0) - 1;
|
|
if (G_UNLIKELY (i == n_samples_per_chunk - 1)) {
|
|
last_chunk = G_MAXUINT32;
|
|
} else {
|
|
last_chunk = QT_UINT32 (stsc_data + 16 + i * 12 + 12) - 1;
|
|
}
|
|
samples_per_chunk = QT_UINT32 (stsc_data + 16 + i * 12 + 4);
|
|
|
|
for (j = first_chunk; j < last_chunk; j++) {
|
|
guint64 chunk_offset;
|
|
|
|
if (stco) {
|
|
chunk_offset = QT_UINT32 (stco_data + 16 + j * 4);
|
|
} else {
|
|
chunk_offset = QT_UINT64 (co64_data + 16 + j * 8);
|
|
}
|
|
for (k = 0; k < samples_per_chunk; k++) {
|
|
GST_LOG_OBJECT (qtdemux, "Creating entry %d with offset %lld",
|
|
index, chunk_offset);
|
|
samples[index].offset = chunk_offset;
|
|
chunk_offset += samples[index].size;
|
|
index++;
|
|
if (G_UNLIKELY (index >= n_samples))
|
|
goto done2;
|
|
}
|
|
}
|
|
}
|
|
done2:
|
|
|
|
n_sample_times = QT_UINT32 (stts_data + 12);
|
|
GST_LOG_OBJECT (qtdemux, "%u timestamp blocks", n_sample_times);
|
|
timestamp = 0;
|
|
stream->min_duration = 0;
|
|
time = 0;
|
|
index = 0;
|
|
stts_data += 16;
|
|
for (i = 0; i < n_sample_times; i++) {
|
|
guint32 n;
|
|
guint32 duration;
|
|
|
|
n = QT_UINT32 (stts_data);
|
|
stts_data += 4;
|
|
duration = QT_UINT32 (stts_data);
|
|
stts_data += 4;
|
|
GST_LOG_OBJECT (qtdemux, "block %d, %u timestamps, duration %u ", i, n,
|
|
duration);
|
|
|
|
/* take first duration for fps */
|
|
if (G_UNLIKELY (stream->min_duration == 0))
|
|
stream->min_duration = duration;
|
|
|
|
for (j = 0; j < n; j++) {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"sample %d: index %d, timestamp %" GST_TIME_FORMAT, index, j,
|
|
GST_TIME_ARGS (timestamp));
|
|
|
|
samples[index].timestamp = timestamp;
|
|
/* add non-scaled values to avoid rounding errors */
|
|
time += duration;
|
|
timestamp = gst_util_uint64_scale (time, GST_SECOND, stream->timescale);
|
|
samples[index].duration = timestamp - samples[index].timestamp;
|
|
|
|
index++;
|
|
if (G_UNLIKELY (index >= n_samples))
|
|
goto done3;
|
|
}
|
|
}
|
|
/* 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 (; index < n_samples; index++) {
|
|
GST_DEBUG_OBJECT (qtdemux, "fill sample %d: timestamp %" GST_TIME_FORMAT,
|
|
index, GST_TIME_ARGS (timestamp));
|
|
samples[index].timestamp = timestamp;
|
|
samples[index].duration = -1;
|
|
}
|
|
done3:
|
|
|
|
/* sample sync, can be NULL */
|
|
stss = qtdemux_tree_get_child_by_type (stbl, FOURCC_stss);
|
|
|
|
if (stss) {
|
|
/* mark keyframes */
|
|
guint32 n_sample_syncs;
|
|
const guint8 *stss_p = (guint8 *) stss->data;
|
|
|
|
stss_p += 12;
|
|
n_sample_syncs = QT_UINT32 (stss_p);
|
|
if (n_sample_syncs == 0) {
|
|
stream->all_keyframe = TRUE;
|
|
} else {
|
|
for (i = 0; i < n_sample_syncs; i++) {
|
|
stss_p += 4;
|
|
/* note that the first sample is index 1, not 0 */
|
|
index = QT_UINT32 (stss_p);
|
|
if (G_LIKELY (index > 0 && index <= n_samples))
|
|
samples[index - 1].keyframe = TRUE;
|
|
}
|
|
}
|
|
stps = qtdemux_tree_get_child_by_type (stbl, FOURCC_stps);
|
|
if (stps) {
|
|
/* stps marks partial sync frames like open GOP I-Frames */
|
|
guint32 n_sample_syncs;
|
|
const guint8 *stps_p = (guint8 *) stps->data;
|
|
|
|
stps_p += 12;
|
|
n_sample_syncs = QT_UINT32 (stps_p);
|
|
if (n_sample_syncs != 0) {
|
|
/* no entries, the stss table contains the real sync
|
|
* samples */
|
|
} else {
|
|
for (i = 0; i < n_sample_syncs; i++) {
|
|
stps_p += 4;
|
|
/* note that the first sample is index 1, not 0 */
|
|
index = QT_UINT32 (stps_p);
|
|
if (G_LIKELY (index > 0 && index <= n_samples))
|
|
samples[index - 1].keyframe = TRUE;
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
/* no stss, all samples are keyframes */
|
|
stream->all_keyframe = TRUE;
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux,
|
|
"stsz sample_size %d != 0, treating chunks as samples", sample_size);
|
|
/* treat chunks as samples */
|
|
if (stco) {
|
|
n_samples = QT_UINT32 (stco_data + 12);
|
|
} else {
|
|
n_samples = QT_UINT32 (co64_data + 12);
|
|
}
|
|
|
|
if (n_samples == 0)
|
|
goto no_samples;
|
|
else if (n_samples < 0)
|
|
goto corrupt_file;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "allocating n_samples %d", n_samples);
|
|
|
|
samples = g_try_new0 (QtDemuxSample, n_samples);
|
|
if (samples == NULL)
|
|
goto out_of_memory;
|
|
|
|
stream->n_samples = n_samples;
|
|
stream->samples = samples;
|
|
|
|
n_samples_per_chunk = QT_UINT32 (stsc_data + 12);
|
|
GST_DEBUG_OBJECT (qtdemux, "n_samples_per_chunk %d", n_samples_per_chunk);
|
|
sample_index = 0;
|
|
timestamp = 0;
|
|
for (i = 0; i < n_samples_per_chunk; i++) {
|
|
guint32 first_chunk, last_chunk;
|
|
guint32 samples_per_chunk;
|
|
|
|
first_chunk = QT_UINT32 (stsc_data + 16 + i * 12 + 0) - 1;
|
|
/* 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 (i == n_samples_per_chunk - 1) {
|
|
last_chunk = G_MAXUINT32;
|
|
} else {
|
|
last_chunk = QT_UINT32 (stsc_data + 16 + i * 12 + 12) - 1;
|
|
}
|
|
samples_per_chunk = QT_UINT32 (stsc_data + 16 + i * 12 + 4);
|
|
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"entry %d has first_chunk %d, last_chunk %d, samples_per_chunk %d", i,
|
|
first_chunk, last_chunk, samples_per_chunk);
|
|
|
|
for (j = first_chunk; j < last_chunk; j++) {
|
|
guint64 chunk_offset;
|
|
|
|
if (j >= n_samples)
|
|
goto done;
|
|
|
|
if (stco) {
|
|
chunk_offset = QT_UINT32 (stco_data + 16 + j * 4);
|
|
} else {
|
|
chunk_offset = QT_UINT64 (co64_data + 16 + j * 8);
|
|
}
|
|
GST_LOG_OBJECT (qtdemux,
|
|
"Creating entry %d with offset %" G_GUINT64_FORMAT, j,
|
|
chunk_offset);
|
|
|
|
samples[j].offset = chunk_offset;
|
|
|
|
if (stream->samples_per_frame * stream->bytes_per_frame) {
|
|
samples[j].size = (samples_per_chunk * stream->n_channels) /
|
|
stream->samples_per_frame * stream->bytes_per_frame;
|
|
} else {
|
|
samples[j].size = samples_per_chunk;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "sample %d: timestamp %" GST_TIME_FORMAT
|
|
", size %u", j, GST_TIME_ARGS (timestamp), samples[j].size);
|
|
|
|
samples[j].timestamp = timestamp;
|
|
sample_index += samples_per_chunk;
|
|
|
|
timestamp = gst_util_uint64_scale (sample_index,
|
|
GST_SECOND, stream->timescale);
|
|
samples[j].duration = timestamp - samples[j].timestamp;
|
|
|
|
samples[j].keyframe = TRUE;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* composition time to sample */
|
|
if ((ctts = qtdemux_tree_get_child_by_type (stbl, FOURCC_ctts))) {
|
|
const guint8 *ctts_data, *ctts_p;
|
|
guint32 n_entries;
|
|
guint32 count;
|
|
gint32 soffset;
|
|
|
|
ctts_data = (const guint8 *) ctts->data;
|
|
n_entries = QT_UINT32 (ctts_data + 12);
|
|
|
|
/* Fill in the pts_offsets */
|
|
index = 0;
|
|
ctts_p = ctts_data + 16;
|
|
/* FIXME: make sure we don't read beyond the atom size/boundary */
|
|
for (i = 0; i < n_entries; i++) {
|
|
count = QT_UINT32 (ctts_p);
|
|
ctts_p += 4;
|
|
soffset = QT_UINT32 (ctts_p);
|
|
ctts_p += 4;
|
|
for (j = 0; j < count; j++) {
|
|
/* we operate with very small soffset values here, it shouldn't overflow */
|
|
samples[index].pts_offset = soffset * GST_SECOND / stream->timescale;
|
|
index++;
|
|
if (G_UNLIKELY (index >= n_samples))
|
|
goto done;
|
|
}
|
|
}
|
|
}
|
|
done:
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
corrupt_file:
|
|
{
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DECODE,
|
|
(_("This file is corrupt and cannot be played.")), (NULL));
|
|
return FALSE;
|
|
}
|
|
no_samples:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "stream has no samples");
|
|
return FALSE;
|
|
}
|
|
out_of_memory:
|
|
{
|
|
GST_WARNING_OBJECT (qtdemux, "failed to allocate %d samples", n_samples);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* collect all segment info for @stream.
|
|
*/
|
|
static gboolean
|
|
qtdemux_parse_segments (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
GNode * trak)
|
|
{
|
|
GNode *edts;
|
|
|
|
/* 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;
|
|
gint n_segments;
|
|
gint i, count;
|
|
guint64 time, stime;
|
|
guint8 *buffer;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "looking for edit list");
|
|
if (!(elst = qtdemux_tree_get_child_by_type (edts, FOURCC_elst)))
|
|
goto done;
|
|
|
|
buffer = elst->data;
|
|
|
|
n_segments = QT_UINT32 (buffer + 12);
|
|
|
|
/* 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;
|
|
count = 0;
|
|
for (i = 0; i < n_segments; i++) {
|
|
guint64 duration;
|
|
guint64 media_time;
|
|
QtDemuxSegment *segment;
|
|
guint32 rate_int;
|
|
|
|
media_time = QT_UINT32 (buffer + 20 + i * 12);
|
|
|
|
/* -1 media time is an empty segment, just ignore it */
|
|
if (media_time == G_MAXUINT32)
|
|
continue;
|
|
|
|
duration = QT_UINT32 (buffer + 16 + i * 12);
|
|
|
|
segment = &stream->segments[count++];
|
|
|
|
/* time and duration expressed in global timescale */
|
|
segment->time = stime;
|
|
/* add non scaled values so we don't cause roundoff errors */
|
|
time += duration;
|
|
stime = gst_util_uint64_scale (time, GST_SECOND, qtdemux->timescale);
|
|
segment->stop_time = stime;
|
|
segment->duration = stime - segment->time;
|
|
/* media_time expressed in stream timescale */
|
|
segment->media_start =
|
|
gst_util_uint64_scale (media_time, GST_SECOND, stream->timescale);
|
|
segment->media_stop = segment->media_start + segment->duration;
|
|
rate_int = GST_READ_UINT32_BE (buffer + 24 + i * 12);
|
|
|
|
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_time %" GST_TIME_FORMAT
|
|
", rate %g, (%d)", i, GST_TIME_ARGS (segment->time),
|
|
GST_TIME_ARGS (segment->duration),
|
|
GST_TIME_ARGS (segment->media_start), segment->rate, rate_int);
|
|
}
|
|
GST_DEBUG_OBJECT (qtdemux, "found %d non-empty segments", count);
|
|
stream->n_segments = count;
|
|
}
|
|
done:
|
|
|
|
/* push based does not handle segments, so act accordingly here,
|
|
* and warn if applicable */
|
|
if (!qtdemux->pullbased) {
|
|
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 = 0;
|
|
|
|
if (stream->segments == NULL)
|
|
stream->segments = g_new (QtDemuxSegment, 1);
|
|
|
|
/* samples know best */
|
|
if (stream->n_samples > 0) {
|
|
stream_duration =
|
|
stream->samples[stream->n_samples - 1].timestamp +
|
|
stream->samples[stream->n_samples - 1].pts_offset +
|
|
stream->samples[stream->n_samples - 1].duration;
|
|
}
|
|
|
|
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;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "created dummy segment %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (stream_duration));
|
|
stream->n_segments = 1;
|
|
}
|
|
GST_DEBUG_OBJECT (qtdemux, "using %d segments", stream->n_segments);
|
|
|
|
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)
|
|
{
|
|
int offset;
|
|
GNode *tkhd;
|
|
GNode *mdia;
|
|
GNode *mdhd;
|
|
GNode *hdlr;
|
|
GNode *minf;
|
|
GNode *stbl;
|
|
GNode *stsd;
|
|
GNode *mp4a;
|
|
GNode *mp4v;
|
|
GNode *wave;
|
|
GNode *esds;
|
|
GNode *pasp;
|
|
QtDemuxStream *stream;
|
|
GstTagList *list = NULL;
|
|
gchar *codec = NULL;
|
|
const guint8 *stsd_data;
|
|
guint32 version;
|
|
|
|
stream = g_new0 (QtDemuxStream, 1);
|
|
/* new streams always need a discont */
|
|
stream->discont = TRUE;
|
|
/* we enable clipping for raw audio/video streams */
|
|
stream->need_clip = FALSE;
|
|
stream->segment_index = -1;
|
|
stream->time_position = 0;
|
|
stream->sample_index = -1;
|
|
stream->last_ret = GST_FLOW_OK;
|
|
|
|
if (!(tkhd = qtdemux_tree_get_child_by_type (trak, FOURCC_tkhd)))
|
|
goto corrupt_file;
|
|
|
|
GST_LOG_OBJECT (qtdemux, "track[tkhd] version/flags: 0x%08x",
|
|
QT_UINT32 ((guint8 *) tkhd->data + 8));
|
|
|
|
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;
|
|
}
|
|
|
|
version = QT_UINT32 ((guint8 *) mdhd->data + 8);
|
|
GST_LOG_OBJECT (qtdemux, "track version/flags: %08x", version);
|
|
if (version == 0x01000000) {
|
|
stream->timescale = QT_UINT32 ((guint8 *) mdhd->data + 28);
|
|
stream->duration = QT_UINT64 ((guint8 *) mdhd->data + 32);
|
|
} else {
|
|
stream->timescale = QT_UINT32 ((guint8 *) mdhd->data + 20);
|
|
stream->duration = QT_UINT32 ((guint8 *) mdhd->data + 24);
|
|
}
|
|
|
|
GST_LOG_OBJECT (qtdemux, "track timescale: %" G_GUINT32_FORMAT,
|
|
stream->timescale);
|
|
GST_LOG_OBJECT (qtdemux, "track duration: %" G_GUINT64_FORMAT,
|
|
stream->duration);
|
|
|
|
if (G_UNLIKELY (stream->timescale == 0 || qtdemux->timescale == 0))
|
|
goto corrupt_file;
|
|
|
|
if (qtdemux->duration != G_MAXINT32 && 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 vide 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_GUINT32_FORMAT "/%" G_GUINT32_FORMAT ") of the stream "
|
|
"found, assuming preview image or something; skipping track",
|
|
stream->duration, stream->timescale, qtdemux->duration,
|
|
qtdemux->timescale);
|
|
g_free (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)));
|
|
|
|
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 stsd */
|
|
if (!(stsd = qtdemux_tree_get_child_by_type (stbl, FOURCC_stsd)))
|
|
goto corrupt_file;
|
|
stsd_data = (const guint8 *) stsd->data;
|
|
|
|
if (stream->subtype == FOURCC_vide) {
|
|
guint32 fourcc;
|
|
const guint8 *tkhd_data = (const guint8 *) tkhd->data;
|
|
|
|
stream->sampled = TRUE;
|
|
|
|
/* version 1 uses some 64-bit ints */
|
|
offset = (QT_UINT8 (tkhd_data + 8) == 1) ? 96 : 84;
|
|
stream->display_width = (guint) QT_FP32 (tkhd_data + offset);
|
|
stream->display_height = (guint) QT_FP32 (tkhd_data + offset + 4);
|
|
|
|
offset = 16;
|
|
stream->fourcc = fourcc = QT_FOURCC (stsd_data + offset + 4);
|
|
GST_LOG_OBJECT (qtdemux, "st type: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
|
|
stream->width = QT_UINT16 (stsd_data + offset + 32);
|
|
stream->height = QT_UINT16 (stsd_data + offset + 34);
|
|
stream->fps_n = 0; /* this is filled in later */
|
|
stream->fps_d = 0; /* this is filled in later */
|
|
stream->bits_per_sample = QT_UINT16 (stsd_data + offset + 82);
|
|
stream->color_table_id = QT_UINT16 (stsd_data + offset + 84);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "frame count: %u",
|
|
QT_UINT16 (stsd_data + offset + 48));
|
|
|
|
if (fourcc == FOURCC_drms)
|
|
goto error_encrypted;
|
|
|
|
stream->caps =
|
|
qtdemux_video_caps (qtdemux, stream, fourcc, stsd_data, &codec);
|
|
if (codec) {
|
|
list = gst_tag_list_new ();
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_VIDEO_CODEC, codec, NULL);
|
|
g_free (codec);
|
|
codec = NULL;
|
|
}
|
|
|
|
esds = NULL;
|
|
pasp = NULL;
|
|
mp4v = qtdemux_tree_get_child_by_type (stsd, FOURCC_mp4v);
|
|
if (mp4v) {
|
|
esds = qtdemux_tree_get_child_by_type (mp4v, FOURCC_esds);
|
|
pasp = qtdemux_tree_get_child_by_type (mp4v, FOURCC_pasp);
|
|
}
|
|
|
|
if (pasp) {
|
|
const guint8 *pasp_data = (const guint8 *) pasp->data;
|
|
|
|
stream->par_w = QT_UINT32 (pasp_data + 8);
|
|
stream->par_h = QT_UINT32 (pasp_data + 12);
|
|
} else {
|
|
stream->par_w = 0;
|
|
stream->par_h = 0;
|
|
}
|
|
|
|
if (esds) {
|
|
gst_qtdemux_handle_esds (qtdemux, stream, esds, list);
|
|
} else {
|
|
switch (fourcc) {
|
|
case FOURCC_avc1:
|
|
{
|
|
gint len = QT_UINT32 (stsd_data) - 0x66;
|
|
const guint8 *avc_data = stsd_data + 0x66;
|
|
|
|
/* find avcC */
|
|
while (len >= 0x8 &&
|
|
QT_FOURCC (avc_data + 0x4) != FOURCC_avcC &&
|
|
QT_UINT32 (avc_data) < len) {
|
|
len -= QT_UINT32 (avc_data);
|
|
avc_data += QT_UINT32 (avc_data);
|
|
}
|
|
|
|
/* parse, if found */
|
|
if (len > 0x8 && QT_FOURCC (avc_data + 0x4) == FOURCC_avcC) {
|
|
GstBuffer *buf;
|
|
gint size;
|
|
|
|
if (QT_UINT32 (avc_data) < len)
|
|
size = QT_UINT32 (avc_data) - 0x8;
|
|
else
|
|
size = len - 0x8;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found avcC codec_data in stsd");
|
|
|
|
buf = gst_buffer_new_and_alloc (size);
|
|
memcpy (GST_BUFFER_DATA (buf), avc_data + 0x8, size);
|
|
gst_caps_set_simple (stream->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_mjp2:
|
|
{
|
|
GNode *jp2h, *colr, *mjp2, *field, *prefix;
|
|
const guint8 *data;
|
|
guint32 fourcc = 0;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found mjp2");
|
|
/* some required atoms */
|
|
mjp2 = qtdemux_tree_get_child_by_type (stsd, FOURCC_mjp2);
|
|
if (!mjp2)
|
|
break;
|
|
jp2h = qtdemux_tree_get_child_by_type (mjp2, FOURCC_jp2h);
|
|
if (!jp2h)
|
|
break;
|
|
colr = qtdemux_tree_get_child_by_type (jp2h, FOURCC_colr);
|
|
if (!colr)
|
|
break;
|
|
GST_DEBUG_OBJECT (qtdemux, "found colr");
|
|
/* try to extract colour space info */
|
|
if (QT_UINT8 ((guint8 *) colr->data + 8) == 1) {
|
|
switch (QT_UINT32 ((guint8 *) colr->data + 11)) {
|
|
case 16:
|
|
fourcc = GST_MAKE_FOURCC ('s', 'R', 'G', 'B');
|
|
break;
|
|
case 17:
|
|
fourcc = GST_MAKE_FOURCC ('G', 'R', 'A', 'Y');
|
|
break;
|
|
case 18:
|
|
fourcc = GST_MAKE_FOURCC ('s', 'Y', 'U', 'V');
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (fourcc)
|
|
gst_caps_set_simple (stream->caps,
|
|
"fourcc", GST_TYPE_FOURCC, fourcc, NULL);
|
|
|
|
/* 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 (stream->caps, "fields", G_TYPE_INT,
|
|
(gint) * data, NULL);
|
|
}
|
|
/* add codec_data if provided */
|
|
if (prefix) {
|
|
GstBuffer *buf;
|
|
gint 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);
|
|
memcpy (GST_BUFFER_DATA (buf), data + 8, len);
|
|
gst_caps_set_simple (stream->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case FOURCC_SVQ3:
|
|
case FOURCC_VP31:
|
|
{
|
|
GstBuffer *buf;
|
|
gint len = QT_UINT32 (stsd_data);
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found codec_data in stsd");
|
|
|
|
buf = gst_buffer_new_and_alloc (len);
|
|
memcpy (GST_BUFFER_DATA (buf), stsd_data, len);
|
|
gst_caps_set_simple (stream->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
break;
|
|
}
|
|
case FOURCC_rle_:
|
|
{
|
|
gst_caps_set_simple (stream->caps,
|
|
"depth", G_TYPE_INT, QT_UINT16 (stsd_data + offset + 82), NULL);
|
|
break;
|
|
}
|
|
case FOURCC_XiTh:
|
|
{
|
|
GNode *xith, *xdxt;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found XiTh");
|
|
xith = qtdemux_tree_get_child_by_type (stsd, FOURCC_XiTh);
|
|
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;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
GST_INFO_OBJECT (qtdemux,
|
|
"type %" GST_FOURCC_FORMAT " caps %" GST_PTR_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc), stream->caps);
|
|
|
|
} else if (stream->subtype == FOURCC_soun) {
|
|
int version, samplesize;
|
|
guint32 fourcc;
|
|
int len;
|
|
guint16 compression_id;
|
|
|
|
len = QT_UINT32 (stsd_data + 16);
|
|
GST_LOG_OBJECT (qtdemux, "stsd len: %d", len);
|
|
|
|
stream->fourcc = fourcc = QT_FOURCC (stsd_data + 16 + 4);
|
|
GST_LOG_OBJECT (qtdemux, "stsd type: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (stream->fourcc));
|
|
|
|
offset = 32;
|
|
|
|
version = QT_UINT32 (stsd_data + offset);
|
|
stream->n_channels = QT_UINT16 (stsd_data + offset + 8);
|
|
samplesize = QT_UINT16 (stsd_data + offset + 10);
|
|
compression_id = QT_UINT16 (stsd_data + offset + 12);
|
|
stream->rate = QT_FP32 (stsd_data + offset + 16);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "version/rev: %08x", version);
|
|
GST_LOG_OBJECT (qtdemux, "vendor: %08x",
|
|
QT_UINT32 (stsd_data + offset + 4));
|
|
GST_LOG_OBJECT (qtdemux, "n_channels: %d", stream->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_data + offset + 14));
|
|
GST_LOG_OBJECT (qtdemux, "sample rate: %g", stream->rate);
|
|
|
|
if (compression_id == 0xfffe)
|
|
stream->sampled = TRUE;
|
|
|
|
/* first assume uncompressed audio */
|
|
stream->bytes_per_sample = samplesize / 8;
|
|
stream->samples_per_frame = stream->n_channels;
|
|
stream->bytes_per_frame = stream->n_channels * stream->bytes_per_sample;
|
|
stream->samples_per_packet = stream->samples_per_frame;
|
|
stream->bytes_per_packet = stream->bytes_per_sample;
|
|
|
|
offset = 52;
|
|
switch (fourcc) {
|
|
/* Yes, these have to be hard-coded */
|
|
case FOURCC_MAC6:
|
|
{
|
|
stream->samples_per_packet = 6;
|
|
stream->bytes_per_packet = 1;
|
|
stream->bytes_per_frame = 1 * stream->n_channels;
|
|
stream->bytes_per_sample = 1;
|
|
stream->samples_per_frame = 6 * stream->n_channels;
|
|
break;
|
|
}
|
|
case FOURCC_MAC3:
|
|
{
|
|
stream->samples_per_packet = 3;
|
|
stream->bytes_per_packet = 1;
|
|
stream->bytes_per_frame = 1 * stream->n_channels;
|
|
stream->bytes_per_sample = 1;
|
|
stream->samples_per_frame = 3 * stream->n_channels;
|
|
break;
|
|
}
|
|
case FOURCC_ima4:
|
|
{
|
|
stream->samples_per_packet = 64;
|
|
stream->bytes_per_packet = 34;
|
|
stream->bytes_per_frame = 34 * stream->n_channels;
|
|
stream->bytes_per_sample = 2;
|
|
stream->samples_per_frame = 64 * stream->n_channels;
|
|
break;
|
|
}
|
|
case FOURCC_ulaw:
|
|
case FOURCC_alaw:
|
|
{
|
|
stream->samples_per_packet = 1;
|
|
stream->bytes_per_packet = 1;
|
|
stream->bytes_per_frame = 1 * stream->n_channels;
|
|
stream->bytes_per_sample = 1;
|
|
stream->samples_per_frame = 1 * stream->n_channels;
|
|
break;
|
|
}
|
|
case FOURCC_agsm:
|
|
{
|
|
stream->samples_per_packet = 160;
|
|
stream->bytes_per_packet = 33;
|
|
stream->bytes_per_frame = 33 * stream->n_channels;
|
|
stream->bytes_per_sample = 2;
|
|
stream->samples_per_frame = 160 * stream->n_channels;
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (version == 0x00010000) {
|
|
switch (fourcc) {
|
|
case FOURCC_twos:
|
|
case FOURCC_sowt:
|
|
case FOURCC_raw_:
|
|
break;
|
|
default:
|
|
{
|
|
/* only parse extra decoding config for non-pcm audio */
|
|
stream->samples_per_packet = QT_UINT32 (stsd_data + offset);
|
|
stream->bytes_per_packet = QT_UINT32 (stsd_data + offset + 4);
|
|
stream->bytes_per_frame = QT_UINT32 (stsd_data + offset + 8);
|
|
stream->bytes_per_sample = QT_UINT32 (stsd_data + offset + 12);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "samples/packet: %d",
|
|
stream->samples_per_packet);
|
|
GST_LOG_OBJECT (qtdemux, "bytes/packet: %d",
|
|
stream->bytes_per_packet);
|
|
GST_LOG_OBJECT (qtdemux, "bytes/frame: %d",
|
|
stream->bytes_per_frame);
|
|
GST_LOG_OBJECT (qtdemux, "bytes/sample: %d",
|
|
stream->bytes_per_sample);
|
|
|
|
if (!stream->sampled && stream->bytes_per_packet) {
|
|
stream->samples_per_frame = (stream->bytes_per_frame /
|
|
stream->bytes_per_packet) * stream->samples_per_packet;
|
|
GST_LOG_OBJECT (qtdemux, "samples/frame: %d",
|
|
stream->samples_per_frame);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
} else if (version == 0x00020000) {
|
|
union
|
|
{
|
|
gdouble fp;
|
|
guint64 val;
|
|
} qtfp;
|
|
|
|
stream->samples_per_packet = QT_UINT32 (stsd_data + offset);
|
|
qtfp.val = QT_UINT64 (stsd_data + offset + 4);
|
|
stream->rate = qtfp.fp;
|
|
stream->n_channels = QT_UINT32 (stsd_data + offset + 12);
|
|
|
|
GST_LOG_OBJECT (qtdemux, "samples/packet: %d",
|
|
stream->samples_per_packet);
|
|
GST_LOG_OBJECT (qtdemux, "sample rate: %g", stream->rate);
|
|
GST_LOG_OBJECT (qtdemux, "n_channels: %d", stream->n_channels);
|
|
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux, "unknown version %08x", version);
|
|
}
|
|
|
|
if (fourcc == FOURCC_drms)
|
|
goto error_encrypted;
|
|
|
|
stream->caps = qtdemux_audio_caps (qtdemux, stream, fourcc, NULL, 0,
|
|
&codec);
|
|
|
|
switch (fourcc) {
|
|
case FOURCC_in24:
|
|
{
|
|
GNode *enda;
|
|
GNode *in24;
|
|
|
|
in24 = qtdemux_tree_get_child_by_type (stsd, FOURCC_in24);
|
|
|
|
enda = qtdemux_tree_get_child_by_type (in24, FOURCC_enda);
|
|
if (!enda) {
|
|
wave = qtdemux_tree_get_child_by_type (in24, FOURCC_wave);
|
|
if (wave)
|
|
enda = qtdemux_tree_get_child_by_type (wave, FOURCC_enda);
|
|
}
|
|
if (enda) {
|
|
gst_caps_set_simple (stream->caps,
|
|
"endianness", G_TYPE_INT, G_LITTLE_ENDIAN, NULL);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if (codec) {
|
|
list = gst_tag_list_new ();
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_AUDIO_CODEC, codec, NULL);
|
|
g_free (codec);
|
|
codec = NULL;
|
|
}
|
|
|
|
mp4a = qtdemux_tree_get_child_by_type (stsd, FOURCC_mp4a);
|
|
wave = NULL;
|
|
esds = 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 (esds) {
|
|
gst_qtdemux_handle_esds (qtdemux, stream, esds, list);
|
|
} 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_data);
|
|
|
|
if (len > 0x4C) {
|
|
GstBuffer *buf = gst_buffer_new_and_alloc (len - 0x4C);
|
|
|
|
memcpy (GST_BUFFER_DATA (buf), stsd_data + 0x4C, len - 0x4C);
|
|
gst_caps_set_simple (stream->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
gst_caps_set_simple (stream->caps,
|
|
"samplesize", G_TYPE_INT, samplesize, NULL);
|
|
break;
|
|
}
|
|
case FOURCC_alac:
|
|
{
|
|
gint len = QT_UINT32 (stsd_data);
|
|
|
|
if (len > 0x34) {
|
|
GstBuffer *buf = gst_buffer_new_and_alloc (len - 0x34);
|
|
|
|
memcpy (GST_BUFFER_DATA (buf), stsd_data + 0x34, len - 0x34);
|
|
gst_caps_set_simple (stream->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
gst_caps_set_simple (stream->caps,
|
|
"samplesize", G_TYPE_INT, samplesize, NULL);
|
|
break;
|
|
}
|
|
case FOURCC_samr:
|
|
{
|
|
gint len = QT_UINT32 (stsd_data);
|
|
|
|
if (len > 0x34) {
|
|
GstBuffer *buf = gst_buffer_new_and_alloc (len - 0x34);
|
|
|
|
memcpy (GST_BUFFER_DATA (buf), stsd_data + 0x34, len - 0x34);
|
|
|
|
gst_caps_set_simple (stream->caps,
|
|
"codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
GST_INFO_OBJECT (qtdemux,
|
|
"type %" GST_FOURCC_FORMAT " caps %" GST_PTR_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc), stream->caps);
|
|
|
|
} else if (stream->subtype == FOURCC_strm) {
|
|
guint32 fourcc;
|
|
|
|
stream->fourcc = fourcc = QT_FOURCC (stsd_data + 16 + 4);
|
|
GST_LOG_OBJECT (qtdemux, "stsd type: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
|
|
if (fourcc != FOURCC_rtsp) {
|
|
GST_INFO_OBJECT (qtdemux, "unhandled stream type %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
goto unknown_stream;
|
|
}
|
|
stream->sampled = TRUE;
|
|
} else if (stream->subtype == FOURCC_subp) {
|
|
guint32 fourcc;
|
|
|
|
stream->sampled = TRUE;
|
|
|
|
offset = 16;
|
|
stream->fourcc = fourcc = QT_FOURCC (stsd_data + offset + 4);
|
|
GST_LOG_OBJECT (qtdemux, "st type: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
|
|
stream->caps =
|
|
qtdemux_subp_caps (qtdemux, stream, fourcc, stsd_data, &codec);
|
|
} else {
|
|
goto unknown_stream;
|
|
}
|
|
|
|
/* promote to sampled format */
|
|
if (stream->fourcc == FOURCC_samr) {
|
|
/* force mono 8000 Hz for AMR */
|
|
stream->sampled = TRUE;
|
|
stream->n_channels = 1;
|
|
stream->rate = 8000;
|
|
} else if (stream->fourcc == FOURCC_sawb) {
|
|
/* force mono 16000 Hz for AMR-WB */
|
|
stream->sampled = TRUE;
|
|
stream->n_channels = 1;
|
|
stream->rate = 16000;
|
|
} else if (stream->fourcc == FOURCC_mp4a) {
|
|
stream->sampled = TRUE;
|
|
}
|
|
|
|
/* collect sample information */
|
|
if (!qtdemux_parse_samples (qtdemux, stream, stbl))
|
|
goto samples_failed;
|
|
|
|
/* configure segments */
|
|
if (!qtdemux_parse_segments (qtdemux, stream, trak))
|
|
goto segments_failed;
|
|
|
|
/* now we are ready to add the stream */
|
|
gst_qtdemux_add_stream (qtdemux, stream, list);
|
|
|
|
return TRUE;
|
|
|
|
/* ERRORS */
|
|
corrupt_file:
|
|
{
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DECODE,
|
|
(_("This file is corrupt and cannot be played.")), (NULL));
|
|
g_free (stream);
|
|
return FALSE;
|
|
}
|
|
error_encrypted:
|
|
{
|
|
GST_ELEMENT_ERROR (qtdemux, STREAM, DECRYPT, (NULL), (NULL));
|
|
g_free (stream);
|
|
return FALSE;
|
|
}
|
|
samples_failed:
|
|
{
|
|
/* we posted an error already */
|
|
g_free (stream);
|
|
return FALSE;
|
|
}
|
|
segments_failed:
|
|
{
|
|
/* we posted an error already */
|
|
g_free (stream);
|
|
return FALSE;
|
|
}
|
|
unknown_stream:
|
|
{
|
|
GST_INFO_OBJECT (qtdemux, "unknown subtype %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (stream->subtype));
|
|
g_free (stream);
|
|
return TRUE;
|
|
}
|
|
}
|
|
|
|
/* check if major or compatible brand is 3GP */
|
|
static inline gboolean
|
|
qtdemux_is_brand_3gp (GstQTDemux * qtdemux, gboolean major)
|
|
{
|
|
if (major) {
|
|
return ((qtdemux->major_brand & GST_MAKE_FOURCC (255, 255, 0, 0)) ==
|
|
GST_MAKE_FOURCC ('3', 'g', 0, 0));
|
|
} else {
|
|
guint8 *data = GST_BUFFER_DATA (qtdemux->comp_brands);
|
|
guint size = GST_BUFFER_SIZE (qtdemux->comp_brands);
|
|
gboolean res = FALSE;
|
|
|
|
while (size >= 4) {
|
|
res = res || ((QT_FOURCC (data) & GST_MAKE_FOURCC (255, 255, 0, 0)) ==
|
|
GST_MAKE_FOURCC ('3', 'g', 0, 0));
|
|
data += 4;
|
|
size -= 4;
|
|
}
|
|
return res;
|
|
}
|
|
}
|
|
|
|
/* check if tag is a spec'ed 3GP tag keyword storing a string */
|
|
static inline gboolean
|
|
qtdemux_is_string_tag_3gp (GstQTDemux * qtdemux, guint32 fourcc)
|
|
{
|
|
return fourcc == FOURCC_cprt || fourcc == FOURCC_gnre || fourcc == FOURCC_titl
|
|
|| fourcc == FOURCC_dscp || fourcc == FOURCC_perf || fourcc == FOURCC_auth
|
|
|| fourcc == FOURCC_albm;
|
|
}
|
|
|
|
static void
|
|
qtdemux_tag_add_location (GstQTDemux * qtdemux, const char *tag,
|
|
const char *dummy, GNode * node)
|
|
{
|
|
const gchar *env_vars[] = { "GST_QT_TAG_ENCODING", "GST_TAG_ENCODING", NULL };
|
|
int offset;
|
|
char *name;
|
|
gchar *data;
|
|
gdouble longitude, latitude, altitude;
|
|
|
|
data = node->data;
|
|
offset = 14;
|
|
|
|
/* TODO: language code skipped */
|
|
|
|
name = gst_tag_freeform_string_to_utf8 (data + offset, -1, env_vars);
|
|
|
|
if (!name) {
|
|
/* do not alarm in trivial case, but bail out otherwise */
|
|
if (*(data + offset) != 0) {
|
|
GST_DEBUG_OBJECT (qtdemux, "failed to convert %s tag to UTF-8, "
|
|
"giving up", tag);
|
|
}
|
|
} else {
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_GEO_LOCATION_NAME, name, NULL);
|
|
offset += strlen (name);
|
|
g_free (name);
|
|
}
|
|
|
|
/* +1 +1 = skip null-terminator and location role byte */
|
|
offset += 1 + 1;
|
|
longitude = QT_FP32 (data + offset);
|
|
|
|
offset += 4;
|
|
latitude = QT_FP32 (data + offset);
|
|
|
|
offset += 4;
|
|
altitude = QT_FP32 (data + offset);
|
|
|
|
/* one invalid means all are invalid */
|
|
if (longitude >= -180.0 && longitude <= 180.0 &&
|
|
latitude >= -90.0 && latitude <= 90.0) {
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_GEO_LOCATION_LATITUDE, latitude,
|
|
GST_TAG_GEO_LOCATION_LONGITUDE, longitude,
|
|
GST_TAG_GEO_LOCATION_ELEVATION, altitude, NULL);
|
|
}
|
|
|
|
/* TODO: no GST_TAG_, so astronomical body and additional notes skipped */
|
|
}
|
|
|
|
|
|
static void
|
|
qtdemux_tag_add_year (GstQTDemux * qtdemux, const char *tag, const char *dummy,
|
|
GNode * node)
|
|
{
|
|
guint16 y;
|
|
GDate *date;
|
|
|
|
y = QT_UINT16 ((guint8 *) node->data + 12);
|
|
GST_DEBUG_OBJECT (qtdemux, "year: %u", y);
|
|
|
|
date = g_date_new_dmy (1, 1, y);
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE, tag, date, NULL);
|
|
g_date_free (date);
|
|
}
|
|
|
|
static void
|
|
qtdemux_tag_add_classification (GstQTDemux * qtdemux, const char *tag,
|
|
const char *dummy, GNode * node)
|
|
{
|
|
int offset;
|
|
char *tag_str = NULL;
|
|
guint8 *entity;
|
|
guint16 table;
|
|
|
|
|
|
offset = 12;
|
|
entity = (guint8 *) node->data + offset;
|
|
|
|
offset += 4;
|
|
table = QT_UINT16 ((guint8 *) node->data + offset);
|
|
|
|
/* Language code skipped */
|
|
|
|
offset += 4;
|
|
|
|
/* Tag format: "XXXX://Y[YYYY]/classification info string"
|
|
* XXXX: classification entity, fixed length 4 chars.
|
|
* Y[YYYY]: classification table, max 5 chars.
|
|
*/
|
|
tag_str = g_strdup_printf ("----://%u/%s",
|
|
table, (char *) node->data + offset);
|
|
|
|
/* memcpy To be sure we're preserving byte order */
|
|
memcpy (tag_str, entity, 4);
|
|
GST_DEBUG_OBJECT (qtdemux, "classification info: %s", tag_str);
|
|
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_APPEND, tag,
|
|
tag_str, NULL);
|
|
|
|
g_free (tag_str);
|
|
}
|
|
|
|
static gboolean
|
|
qtdemux_tag_add_str_full (GstQTDemux * qtdemux, const char *tag,
|
|
const char *dummy, GNode * node)
|
|
{
|
|
const gchar *env_vars[] = { "GST_QT_TAG_ENCODING", "GST_TAG_ENCODING", NULL };
|
|
GNode *data;
|
|
char *s;
|
|
int len;
|
|
guint32 type;
|
|
int offset;
|
|
gboolean ret = TRUE;
|
|
|
|
data = qtdemux_tree_get_child_by_type (node, FOURCC_data);
|
|
if (data) {
|
|
len = QT_UINT32 (data->data);
|
|
type = QT_UINT32 ((guint8 *) data->data + 8);
|
|
if (type == 0x00000001) {
|
|
s = gst_tag_freeform_string_to_utf8 ((char *) data->data + 16, len - 16,
|
|
env_vars);
|
|
if (s) {
|
|
GST_DEBUG_OBJECT (qtdemux, "adding tag %s", GST_STR_NULL (s));
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE, tag, s,
|
|
NULL);
|
|
g_free (s);
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "failed to convert %s tag to UTF-8", tag);
|
|
}
|
|
}
|
|
} else {
|
|
len = QT_UINT32 (node->data);
|
|
type = QT_UINT32 ((guint8 *) node->data + 4);
|
|
if ((type >> 24) == 0xa9) {
|
|
/* Type starts with the (C) symbol, so the next 32 bits are
|
|
* the language code, which we ignore */
|
|
offset = 12;
|
|
GST_DEBUG_OBJECT (qtdemux, "found international text tag");
|
|
} else if (len > 14 && qtdemux_is_string_tag_3gp (qtdemux,
|
|
QT_FOURCC ((guint8 *) node->data + 4))) {
|
|
guint32 type = QT_UINT32 ((guint8 *) node->data + 8);
|
|
|
|
/* we go for 3GP style encoding if major brands claims so,
|
|
* or if no hope for data be ok UTF-8, and compatible 3GP brand present */
|
|
if (qtdemux_is_brand_3gp (qtdemux, TRUE) ||
|
|
(qtdemux_is_brand_3gp (qtdemux, FALSE) &&
|
|
((type & 0x00FFFFFF) == 0x0) && (type >> 24 <= 0xF))) {
|
|
offset = 14;
|
|
/* 16-bit Language code is ignored here as well */
|
|
GST_DEBUG_OBJECT (qtdemux, "found 3gpp text tag");
|
|
} else {
|
|
goto normal;
|
|
}
|
|
} else {
|
|
normal:
|
|
offset = 8;
|
|
GST_DEBUG_OBJECT (qtdemux, "found normal text tag");
|
|
ret = FALSE; /* may have to fallback */
|
|
}
|
|
s = gst_tag_freeform_string_to_utf8 ((char *) node->data + offset,
|
|
len - offset, env_vars);
|
|
if (s) {
|
|
GST_DEBUG_OBJECT (qtdemux, "adding tag %s", GST_STR_NULL (s));
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE, tag, s, NULL);
|
|
g_free (s);
|
|
ret = TRUE;
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "failed to convert %s tag to UTF-8", tag);
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
qtdemux_tag_add_str (GstQTDemux * qtdemux, const char *tag,
|
|
const char *dummy, GNode * node)
|
|
{
|
|
qtdemux_tag_add_str_full (qtdemux, tag, dummy, node);
|
|
}
|
|
|
|
static void
|
|
qtdemux_tag_add_keywords (GstQTDemux * qtdemux, const char *tag,
|
|
const char *dummy, GNode * node)
|
|
{
|
|
const gchar *env_vars[] = { "GST_QT_TAG_ENCODING", "GST_TAG_ENCODING", NULL };
|
|
guint8 *data;
|
|
char *s, *t, *k = NULL;
|
|
int len;
|
|
int offset;
|
|
int count;
|
|
|
|
/* first try normal string tag if major brand not 3GP */
|
|
if (!qtdemux_is_brand_3gp (qtdemux, TRUE)) {
|
|
if (!qtdemux_tag_add_str_full (qtdemux, tag, dummy, node)) {
|
|
/* hm, that did not work, maybe 3gpp storage in non-3gpp major brand;
|
|
* let's try it 3gpp way after minor safety check */
|
|
data = node->data;
|
|
if (QT_UINT32 (data) < 15 || !qtdemux_is_brand_3gp (qtdemux, FALSE))
|
|
return;
|
|
} else
|
|
return;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "found 3gpp keyword tag");
|
|
|
|
data = node->data;
|
|
|
|
len = QT_UINT32 (data);
|
|
if (len < 15)
|
|
goto short_read;
|
|
|
|
count = QT_UINT8 (data + 14);
|
|
offset = 15;
|
|
for (; count; count--) {
|
|
gint slen;
|
|
|
|
if (offset + 1 > len)
|
|
goto short_read;
|
|
slen = QT_UINT8 (data + offset);
|
|
offset += 1;
|
|
if (offset + slen > len)
|
|
goto short_read;
|
|
s = gst_tag_freeform_string_to_utf8 ((char *) node->data + offset,
|
|
slen, env_vars);
|
|
if (s) {
|
|
GST_DEBUG_OBJECT (qtdemux, "adding keyword %s", GST_STR_NULL (s));
|
|
if (k) {
|
|
t = g_strjoin (",", k, s, NULL);
|
|
g_free (s);
|
|
g_free (k);
|
|
k = t;
|
|
} else {
|
|
k = s;
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "failed to convert keyword to UTF-8");
|
|
}
|
|
offset += slen;
|
|
}
|
|
|
|
done:
|
|
if (k) {
|
|
GST_DEBUG_OBJECT (qtdemux, "adding tag %s", GST_STR_NULL (k));
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE, tag, k, NULL);
|
|
}
|
|
g_free (k);
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
short_read:
|
|
{
|
|
GST_DEBUG_OBJECT (qtdemux, "short read parsing 3GP keywords");
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_tag_add_num (GstQTDemux * qtdemux, const char *tag1,
|
|
const char *tag2, GNode * node)
|
|
{
|
|
GNode *data;
|
|
int len;
|
|
int type;
|
|
int n1, n2;
|
|
|
|
data = qtdemux_tree_get_child_by_type (node, FOURCC_data);
|
|
if (data) {
|
|
len = QT_UINT32 (data->data);
|
|
type = QT_UINT32 ((guint8 *) data->data + 8);
|
|
if (type == 0x00000000 && len >= 22) {
|
|
n1 = QT_UINT16 ((guint8 *) data->data + 18);
|
|
n2 = QT_UINT16 ((guint8 *) data->data + 20);
|
|
if (n1 > 0) {
|
|
GST_DEBUG_OBJECT (qtdemux, "adding tag %s=%d", tag1, n1);
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE,
|
|
tag1, n1, NULL);
|
|
}
|
|
if (n2 > 0) {
|
|
GST_DEBUG_OBJECT (qtdemux, "adding tag %s=%d", tag2, n2);
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE,
|
|
tag2, n2, NULL);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_tag_add_tmpo (GstQTDemux * qtdemux, const char *tag1, const char *dummy,
|
|
GNode * node)
|
|
{
|
|
GNode *data;
|
|
int len;
|
|
int type;
|
|
int n1;
|
|
|
|
data = qtdemux_tree_get_child_by_type (node, FOURCC_data);
|
|
if (data) {
|
|
len = QT_UINT32 (data->data);
|
|
type = QT_UINT32 ((guint8 *) data->data + 8);
|
|
GST_DEBUG_OBJECT (qtdemux, "have tempo tag, type=%d,len=%d", type, len);
|
|
/* some files wrongly have a type 0x0f=15, but it should be 0x15 */
|
|
if ((type == 0x00000015 || type == 0x0000000f) && len >= 18) {
|
|
n1 = QT_UINT16 ((guint8 *) data->data + 16);
|
|
if (n1) {
|
|
/* do not add bpm=0 */
|
|
GST_DEBUG_OBJECT (qtdemux, "adding tag %d", n1);
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE,
|
|
tag1, (gdouble) n1, NULL);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_tag_add_covr (GstQTDemux * qtdemux, const char *tag1, const char *dummy,
|
|
GNode * node)
|
|
{
|
|
GNode *data;
|
|
int len;
|
|
int type;
|
|
GstBuffer *buf;
|
|
|
|
data = qtdemux_tree_get_child_by_type (node, FOURCC_data);
|
|
if (data) {
|
|
len = QT_UINT32 (data->data);
|
|
type = QT_UINT32 ((guint8 *) data->data + 8);
|
|
GST_DEBUG_OBJECT (qtdemux, "have covr tag, type=%d,len=%d", type, len);
|
|
if ((type == 0x0000000d || type == 0x0000000e) && len > 16) {
|
|
if ((buf = gst_tag_image_data_to_image_buffer ((guint8 *) data->data + 16,
|
|
len - 16, GST_TAG_IMAGE_TYPE_NONE))) {
|
|
GST_DEBUG_OBJECT (qtdemux, "adding tag size %d", len - 16);
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE,
|
|
tag1, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_tag_add_date (GstQTDemux * qtdemux, const char *tag, const char *dummy,
|
|
GNode * node)
|
|
{
|
|
GNode *data;
|
|
char *s;
|
|
int len;
|
|
int type;
|
|
|
|
data = qtdemux_tree_get_child_by_type (node, FOURCC_data);
|
|
if (data) {
|
|
len = QT_UINT32 (data->data);
|
|
type = QT_UINT32 ((guint8 *) data->data + 8);
|
|
if (type == 0x00000001) {
|
|
guint y, m = 1, d = 1;
|
|
gint ret;
|
|
|
|
s = g_strndup ((char *) data->data + 16, len - 16);
|
|
GST_DEBUG_OBJECT (qtdemux, "adding date '%s'", s);
|
|
ret = sscanf (s, "%u-%u-%u", &y, &m, &d);
|
|
if (ret >= 1 && y > 1500 && y < 3000) {
|
|
GDate *date;
|
|
|
|
date = g_date_new_dmy (d, m, y);
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE, tag,
|
|
date, NULL);
|
|
g_date_free (date);
|
|
} else {
|
|
GST_DEBUG_OBJECT (qtdemux, "could not parse date string '%s'", s);
|
|
}
|
|
g_free (s);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
qtdemux_tag_add_gnre (GstQTDemux * qtdemux, const char *tag, const char *dummy,
|
|
GNode * node)
|
|
{
|
|
static const gchar *genres[] = {
|
|
"N/A", "Blues", "Classic Rock", "Country", "Dance", "Disco",
|
|
"Funk", "Grunge", "Hip-Hop", "Jazz", "Metal", "New Age", "Oldies",
|
|
"Other", "Pop", "R&B", "Rap", "Reggae", "Rock", "Techno",
|
|
"Industrial", "Alternative", "Ska", "Death Metal", "Pranks",
|
|
"Soundtrack", "Euro-Techno", "Ambient", "Trip-Hop", "Vocal",
|
|
"Jazz+Funk", "Fusion", "Trance", "Classical", "Instrumental",
|
|
"Acid", "House", "Game", "Sound Clip", "Gospel", "Noise",
|
|
"AlternRock", "Bass", "Soul", "Punk", "Space", "Meditative",
|
|
"Instrumental Pop", "Instrumental Rock", "Ethnic", "Gothic",
|
|
"Darkwave", "Techno-Industrial", "Electronic", "Pop-Folk",
|
|
"Eurodance", "Dream", "Southern Rock", "Comedy", "Cult", "Gangsta",
|
|
"Top 40", "Christian Rap", "Pop/Funk", "Jungle", "Native American",
|
|
"Cabaret", "New Wave", "Psychadelic", "Rave", "Showtunes",
|
|
"Trailer", "Lo-Fi", "Tribal", "Acid Punk", "Acid Jazz", "Polka",
|
|
"Retro", "Musical", "Rock & Roll", "Hard Rock", "Folk",
|
|
"Folk/Rock", "National Folk", "Swing", "Fast-Fusion", "Bebob",
|
|
"Latin", "Revival", "Celtic", "Bluegrass", "Avantgarde",
|
|
"Gothic Rock", "Progressive Rock", "Psychedelic Rock",
|
|
"Symphonic Rock", "Slow Rock", "Big Band", "Chorus",
|
|
"Easy Listening", "Acoustic", "Humour", "Speech", "Chanson",
|
|
"Opera", "Chamber Music", "Sonata", "Symphony", "Booty Bass",
|
|
"Primus", "Porn Groove", "Satire", "Slow Jam", "Club", "Tango",
|
|
"Samba", "Folklore", "Ballad", "Power Ballad", "Rhythmic Soul",
|
|
"Freestyle", "Duet", "Punk Rock", "Drum Solo", "A capella",
|
|
"Euro-House", "Dance Hall", "Goa", "Drum & Bass", "Club House",
|
|
"Hardcore", "Terror", "Indie", "BritPop", "NegerPunk",
|
|
"Polsk Punk", "Beat", "Christian Gangsta", "Heavy Metal",
|
|
"Black Metal", "Crossover", "Contemporary C", "Christian Rock",
|
|
"Merengue", "Salsa", "Thrash Metal", "Anime", "JPop", "SynthPop"
|
|
};
|
|
GNode *data;
|
|
int len;
|
|
int type;
|
|
int n;
|
|
|
|
data = qtdemux_tree_get_child_by_type (node, FOURCC_data);
|
|
|
|
/* re-route to normal string tag if major brand says so
|
|
* or no data atom and compatible brand suggests so */
|
|
if (qtdemux_is_brand_3gp (qtdemux, TRUE) ||
|
|
(qtdemux_is_brand_3gp (qtdemux, FALSE) && !data)) {
|
|
qtdemux_tag_add_str (qtdemux, tag, dummy, node);
|
|
return;
|
|
}
|
|
|
|
if (data) {
|
|
len = QT_UINT32 (data->data);
|
|
type = QT_UINT32 ((guint8 *) data->data + 8);
|
|
if (type == 0x00000000 && len >= 18) {
|
|
n = QT_UINT16 ((guint8 *) data->data + 16);
|
|
if (n > 0 && n < sizeof (genres) / sizeof (char *)) {
|
|
GST_DEBUG_OBJECT (qtdemux, "adding %d [%s]", n, genres[n]);
|
|
gst_tag_list_add (qtdemux->tag_list, GST_TAG_MERGE_REPLACE,
|
|
tag, genres[n], NULL);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
typedef void (*GstQTDemuxAddTagFunc) (GstQTDemux * demux,
|
|
const char *tag, const char *tag_bis, GNode * node);
|
|
|
|
static const struct
|
|
{
|
|
guint32 fourcc;
|
|
const gchar *gst_tag;
|
|
const gchar *gst_tag_bis;
|
|
const GstQTDemuxAddTagFunc func;
|
|
} add_funcs[] = {
|
|
{
|
|
FOURCC__nam, GST_TAG_TITLE, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC_titl, GST_TAG_TITLE, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC__grp, GST_TAG_ARTIST, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC__wrt, GST_TAG_COMPOSER, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC__ART, GST_TAG_ARTIST, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC_perf, GST_TAG_ARTIST, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC_auth, GST_TAG_COMPOSER, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC__alb, GST_TAG_ALBUM, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC_albm, GST_TAG_ALBUM, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC_cprt, GST_TAG_COPYRIGHT, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC__cpy, GST_TAG_COPYRIGHT, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC__cmt, GST_TAG_COMMENT, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC__des, GST_TAG_DESCRIPTION, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC_dscp, GST_TAG_DESCRIPTION, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC__day, GST_TAG_DATE, NULL, qtdemux_tag_add_date}, {
|
|
FOURCC_yrrc, GST_TAG_DATE, NULL, qtdemux_tag_add_year}, {
|
|
FOURCC__too, GST_TAG_COMMENT, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC__inf, GST_TAG_COMMENT, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC_trkn, GST_TAG_TRACK_NUMBER, GST_TAG_TRACK_COUNT, qtdemux_tag_add_num}, {
|
|
FOURCC_disk, GST_TAG_ALBUM_VOLUME_NUMBER, GST_TAG_ALBUM_VOLUME_COUNT,
|
|
qtdemux_tag_add_num}, {
|
|
FOURCC_disc, GST_TAG_ALBUM_VOLUME_NUMBER, GST_TAG_ALBUM_VOLUME_COUNT,
|
|
qtdemux_tag_add_num}, {
|
|
FOURCC__gen, GST_TAG_GENRE, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC_gnre, GST_TAG_GENRE, NULL, qtdemux_tag_add_gnre}, {
|
|
FOURCC_tmpo, GST_TAG_BEATS_PER_MINUTE, NULL, qtdemux_tag_add_tmpo}, {
|
|
FOURCC_covr, GST_TAG_PREVIEW_IMAGE, NULL, qtdemux_tag_add_covr}, {
|
|
FOURCC_kywd, GST_TAG_KEYWORDS, NULL, qtdemux_tag_add_keywords}, {
|
|
FOURCC_keyw, GST_TAG_KEYWORDS, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC__enc, GST_TAG_ENCODER, NULL, qtdemux_tag_add_str}, {
|
|
FOURCC_loci, GST_TAG_GEO_LOCATION_NAME, NULL, qtdemux_tag_add_location}, {
|
|
FOURCC_clsf, GST_QT_DEMUX_CLASSIFICATION_TAG, NULL,
|
|
qtdemux_tag_add_classification}
|
|
};
|
|
|
|
static void
|
|
qtdemux_tag_add_blob (GNode * node, GstQTDemux * demux)
|
|
{
|
|
gint len;
|
|
guint8 *data;
|
|
GstBuffer *buf;
|
|
gchar *media_type, *style;
|
|
GstCaps *caps;
|
|
guint i;
|
|
guint8 ndata[4];
|
|
|
|
data = node->data;
|
|
len = QT_UINT32 (data);
|
|
buf = gst_buffer_new_and_alloc (len);
|
|
memcpy (GST_BUFFER_DATA (buf), data, len);
|
|
|
|
/* heuristic to determine style of tag */
|
|
if (QT_FOURCC (data + 4) == FOURCC_____ ||
|
|
(len > 8 + 12 && QT_FOURCC (data + 12) == FOURCC_data))
|
|
style = "itunes";
|
|
else if (demux->major_brand == FOURCC_qt__)
|
|
style = "quicktime";
|
|
/* fall back to assuming iso/3gp tag style */
|
|
else
|
|
style = "iso";
|
|
|
|
/* santize the name for the caps. */
|
|
for (i = 0; i < 4; i++) {
|
|
guint8 d = data[4 + i];
|
|
if (g_ascii_isalnum (d))
|
|
ndata[i] = g_ascii_tolower (d);
|
|
else
|
|
ndata[i] = '_';
|
|
}
|
|
|
|
media_type = g_strdup_printf ("application/x-gst-qt-%c%c%c%c-tag",
|
|
ndata[0], ndata[1], ndata[2], ndata[3]);
|
|
GST_DEBUG_OBJECT (demux, "media type %s", media_type);
|
|
|
|
caps = gst_caps_new_simple (media_type, "style", G_TYPE_STRING, style, NULL);
|
|
gst_buffer_set_caps (buf, caps);
|
|
gst_caps_unref (caps);
|
|
g_free (media_type);
|
|
|
|
GST_DEBUG_OBJECT (demux, "adding private tag; size %d, caps %" GST_PTR_FORMAT,
|
|
GST_BUFFER_SIZE (buf), caps);
|
|
|
|
gst_tag_list_add (demux->tag_list, GST_TAG_MERGE_APPEND,
|
|
GST_QT_DEMUX_PRIVATE_TAG, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
|
|
static void
|
|
qtdemux_parse_udta (GstQTDemux * qtdemux, GNode * udta)
|
|
{
|
|
GNode *meta;
|
|
GNode *ilst;
|
|
GNode *node;
|
|
gint i;
|
|
|
|
meta = qtdemux_tree_get_child_by_type (udta, FOURCC_meta);
|
|
if (meta != NULL) {
|
|
ilst = qtdemux_tree_get_child_by_type (meta, FOURCC_ilst);
|
|
if (ilst == NULL) {
|
|
GST_LOG_OBJECT (qtdemux, "no ilst");
|
|
return;
|
|
}
|
|
} else {
|
|
ilst = udta;
|
|
GST_LOG_OBJECT (qtdemux, "no meta so using udta itself");
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "new tag list");
|
|
qtdemux->tag_list = gst_tag_list_new ();
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (add_funcs); ++i) {
|
|
node = qtdemux_tree_get_child_by_type (ilst, add_funcs[i].fourcc);
|
|
if (node) {
|
|
add_funcs[i].func (qtdemux, add_funcs[i].gst_tag,
|
|
add_funcs[i].gst_tag_bis, node);
|
|
g_node_destroy (node);
|
|
}
|
|
}
|
|
|
|
/* parsed nodes have been removed, pass along remainder as blob */
|
|
g_node_children_foreach (ilst, G_TRAVERSE_ALL,
|
|
(GNodeForeachFunc) qtdemux_tag_add_blob, qtdemux);
|
|
|
|
}
|
|
|
|
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);
|
|
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;
|
|
|
|
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;
|
|
|
|
/* 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 if (ref_type == FOURCC_url_) {
|
|
ref.location = g_strdup ((gchar *) ref_data);
|
|
} 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_memdup (&ref, sizeof (ref)));
|
|
} else {
|
|
GST_WARNING_OBJECT (qtdemux,
|
|
"Failed to extract redirect location from rdrf atom");
|
|
}
|
|
}
|
|
|
|
/* 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 ();
|
|
|
|
if (qtdemux->major_brand == FOURCC_mjp2)
|
|
fmt = "Motion JPEG 2000";
|
|
else if ((qtdemux->major_brand & 0xffff) == GST_MAKE_FOURCC ('3', 'g', 0, 0))
|
|
fmt = "3GP";
|
|
else if (qtdemux->major_brand == FOURCC_qt__)
|
|
fmt = "Quicktime";
|
|
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 th 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;
|
|
gint64 duration;
|
|
|
|
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);
|
|
}
|
|
|
|
qtdemux->timescale = QT_UINT32 ((guint8 *) mvhd->data + 20);
|
|
qtdemux->duration = QT_UINT32 ((guint8 *) mvhd->data + 24);
|
|
|
|
GST_INFO_OBJECT (qtdemux, "timescale: %u", qtdemux->timescale);
|
|
GST_INFO_OBJECT (qtdemux, "duration: %u", qtdemux->duration);
|
|
|
|
/* set duration in the segment info */
|
|
gst_qtdemux_get_duration (qtdemux, &duration);
|
|
gst_segment_set_duration (&qtdemux->segment, GST_FORMAT_TIME, 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);
|
|
}
|
|
gst_element_no_more_pads (GST_ELEMENT_CAST (qtdemux));
|
|
|
|
/* find and push tags, we do this after adding the pads so we can push the
|
|
* tags downstream as well. */
|
|
udta = qtdemux_tree_get_child_by_type (qtdemux->moov_node, FOURCC_udta);
|
|
if (udta) {
|
|
qtdemux_parse_udta (qtdemux, udta);
|
|
} else {
|
|
GST_LOG_OBJECT (qtdemux, "No udta node found.");
|
|
}
|
|
|
|
/* FIXME: tags must be pushed after the initial newsegment event */
|
|
qtdemux->tag_list = qtdemux_add_container_format (qtdemux, qtdemux->tag_list);
|
|
GST_INFO_OBJECT (qtdemux, "global tags: %" GST_PTR_FORMAT, qtdemux->tag_list);
|
|
gst_element_found_tags (GST_ELEMENT_CAST (qtdemux), qtdemux->tag_list);
|
|
qtdemux->tag_list = NULL;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* taken from ffmpeg */
|
|
static unsigned int
|
|
get_size (guint8 * ptr, guint8 ** end)
|
|
{
|
|
int count = 4;
|
|
int len = 0;
|
|
|
|
while (count--) {
|
|
int c = *ptr;
|
|
|
|
ptr++;
|
|
len = (len << 7) | (c & 0x7f);
|
|
if (!(c & 0x80))
|
|
break;
|
|
}
|
|
if (end)
|
|
*end = ptr;
|
|
return len;
|
|
}
|
|
|
|
/* this can change the codec originally present in @list */
|
|
static void
|
|
gst_qtdemux_handle_esds (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
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;
|
|
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 < end) {
|
|
tag = QT_UINT8 (ptr);
|
|
GST_DEBUG_OBJECT (qtdemux, "tag = %02x", tag);
|
|
ptr++;
|
|
len = get_size (ptr, &ptr);
|
|
GST_DEBUG_OBJECT (qtdemux, "len = %d", len);
|
|
|
|
switch (tag) {
|
|
case 0x03:
|
|
GST_DEBUG_OBJECT (qtdemux, "ID %04x", QT_UINT16 (ptr));
|
|
GST_DEBUG_OBJECT (qtdemux, "priority %04x", QT_UINT8 (ptr + 2));
|
|
ptr += 3;
|
|
break;
|
|
case 0x04:
|
|
object_type_id = QT_UINT8 (ptr);
|
|
GST_DEBUG_OBJECT (qtdemux, "object_type_id %02x", object_type_id);
|
|
GST_DEBUG_OBJECT (qtdemux, "stream_type %02x", QT_UINT8 (ptr + 1));
|
|
GST_DEBUG_OBJECT (qtdemux, "buffer_size_db %02x", QT_UINT24 (ptr + 2));
|
|
GST_DEBUG_OBJECT (qtdemux, "max bitrate %d", QT_UINT32 (ptr + 5));
|
|
GST_DEBUG_OBJECT (qtdemux, "avg bitrate %d", QT_UINT32 (ptr + 9));
|
|
ptr += 13;
|
|
break;
|
|
case 0x05:
|
|
GST_MEMDUMP_OBJECT (qtdemux, "data", ptr, len);
|
|
data_ptr = ptr;
|
|
data_len = len;
|
|
ptr += len;
|
|
break;
|
|
case 0x06:
|
|
GST_DEBUG_OBJECT (qtdemux, "data %02x", QT_UINT8 (ptr));
|
|
ptr += 1;
|
|
break;
|
|
default:
|
|
GST_ERROR_OBJECT (qtdemux, "parse error");
|
|
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 */
|
|
break; /* Nothing special needed here */
|
|
case 0x21: /* H.264 */
|
|
codec_name = "H.264 / AVC";
|
|
caps = gst_caps_new_simple ("video/x-h264", 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. */
|
|
if (data_ptr && data_len >= 2) {
|
|
guint channels, rateindex;
|
|
int rates[] = { 96000, 88200, 64000, 48000, 44100, 32000,
|
|
24000, 22050, 16000, 12000, 11025, 8000
|
|
};
|
|
|
|
channels = (data_ptr[1] & 0x7f) >> 3;
|
|
if (channels <= 7) {
|
|
stream->n_channels = channels;
|
|
}
|
|
|
|
rateindex = ((data_ptr[0] & 0x7) << 1) | ((data_ptr[1] & 0x80) >> 7);
|
|
if (rateindex < sizeof (rates) / sizeof (*rates)) {
|
|
stream->rate = rates[rateindex];
|
|
}
|
|
}
|
|
break;
|
|
case 0x60: /* MPEG-2, various profiles */
|
|
case 0x61:
|
|
case 0x62:
|
|
case 0x63:
|
|
case 0x64:
|
|
case 0x65:
|
|
codec_name = "MPEG-2 video";
|
|
|
|
gst_caps_unref (stream->caps);
|
|
stream->caps = gst_caps_new_simple ("video/mpeg",
|
|
"mpegversion", G_TYPE_INT, 2,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
case 0x69: /* MP3 has two different values, accept either */
|
|
case 0x6B:
|
|
/* change to mpeg1 layer 3 audio */
|
|
gst_caps_set_simple (stream->caps, "layer", G_TYPE_INT, 3,
|
|
"mpegversion", G_TYPE_INT, 1, NULL);
|
|
codec_name = "MPEG-1 layer 3";
|
|
break;
|
|
case 0x6A: /* MPEG-1 */
|
|
codec_name = "MPEG-1 video";
|
|
|
|
gst_caps_unref (stream->caps);
|
|
stream->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", NULL);
|
|
codec_name = "Motion-JPEG";
|
|
break;
|
|
case 0x6D: /* PNG */
|
|
caps = gst_caps_new_simple ("image/png", 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_simple ("video/x-dirac", NULL);
|
|
break;
|
|
case 0xA5: /* AC3 */
|
|
codec_name = "AC-3 audio";
|
|
caps = gst_caps_new_simple ("audio/x-ac3", NULL);
|
|
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_simple ("audio/qcelp", NULL);
|
|
codec_name = "QCELP";
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* If we have a replacement caps, then change our caps for this stream */
|
|
if (caps) {
|
|
gst_caps_unref (stream->caps);
|
|
stream->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);
|
|
memcpy (GST_BUFFER_DATA (buffer), 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 (stream->caps, "codec_data", GST_TYPE_BUFFER,
|
|
buffer, NULL);
|
|
gst_buffer_unref (buffer);
|
|
}
|
|
|
|
}
|
|
|
|
#define _codec(name) \
|
|
do { \
|
|
if (codec_name) { \
|
|
*codec_name = g_strdup (name); \
|
|
} \
|
|
} while (0)
|
|
|
|
static GstCaps *
|
|
qtdemux_video_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
guint32 fourcc, const guint8 * stsd_data, gchar ** codec_name)
|
|
{
|
|
GstCaps *caps;
|
|
const GstStructure *s;
|
|
const gchar *name;
|
|
|
|
switch (fourcc) {
|
|
case GST_MAKE_FOURCC ('p', 'n', 'g', ' '):
|
|
_codec ("PNG still images");
|
|
caps = gst_caps_new_simple ("image/png", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('j', 'p', 'e', 'g'):
|
|
_codec ("JPEG still images");
|
|
caps = gst_caps_new_simple ("image/jpeg", 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'):
|
|
_codec ("Motion-JPEG");
|
|
caps = gst_caps_new_simple ("image/jpeg", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('m', 'j', 'p', 'b'):
|
|
_codec ("Motion-JPEG format B");
|
|
caps = gst_caps_new_simple ("video/x-mjpeg-b", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('m', 'j', 'p', '2'):
|
|
_codec ("JPEG-2000");
|
|
/* override to what it should be according to spec, avoid palette_data */
|
|
stream->bits_per_sample = 24;
|
|
caps = gst_caps_new_simple ("image/x-j2c", "fields", G_TYPE_INT, 1, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('S', 'V', 'Q', '3'):
|
|
_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 ('r', 'a', 'w', ' '):
|
|
{
|
|
guint16 bps;
|
|
|
|
_codec ("Raw RGB video");
|
|
bps = QT_UINT16 (stsd_data + 98);
|
|
/* set common stuff */
|
|
caps = gst_caps_new_simple ("video/x-raw-rgb",
|
|
"endianness", G_TYPE_INT, G_BYTE_ORDER, "depth", G_TYPE_INT, bps,
|
|
NULL);
|
|
|
|
switch (bps) {
|
|
case 15:
|
|
gst_caps_set_simple (caps,
|
|
"bpp", G_TYPE_INT, 16,
|
|
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
|
|
"red_mask", G_TYPE_INT, 0x7c00,
|
|
"green_mask", G_TYPE_INT, 0x03e0,
|
|
"blue_mask", G_TYPE_INT, 0x001f, NULL);
|
|
break;
|
|
case 16:
|
|
gst_caps_set_simple (caps,
|
|
"bpp", G_TYPE_INT, 16,
|
|
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
|
|
"red_mask", G_TYPE_INT, 0xf800,
|
|
"green_mask", G_TYPE_INT, 0x07e0,
|
|
"blue_mask", G_TYPE_INT, 0x001f, NULL);
|
|
break;
|
|
case 24:
|
|
gst_caps_set_simple (caps,
|
|
"bpp", G_TYPE_INT, 24,
|
|
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
|
|
"red_mask", G_TYPE_INT, 0xff0000,
|
|
"green_mask", G_TYPE_INT, 0x00ff00,
|
|
"blue_mask", G_TYPE_INT, 0x0000ff, NULL);
|
|
break;
|
|
case 32:
|
|
gst_caps_set_simple (caps,
|
|
"bpp", G_TYPE_INT, 32,
|
|
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
|
|
"alpha_mask", G_TYPE_INT, 0xff000000,
|
|
"red_mask", G_TYPE_INT, 0x00ff0000,
|
|
"green_mask", G_TYPE_INT, 0x0000ff00,
|
|
"blue_mask", G_TYPE_INT, 0x000000ff, NULL);
|
|
break;
|
|
default:
|
|
/* unknown */
|
|
break;
|
|
}
|
|
break;
|
|
}
|
|
case GST_MAKE_FOURCC ('y', 'v', '1', '2'):
|
|
_codec ("Raw planar YUV 4:2:0");
|
|
caps = gst_caps_new_simple ("video/x-raw-yuv",
|
|
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('I', '4', '2', '0'),
|
|
NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('y', 'u', 'v', '2'):
|
|
case GST_MAKE_FOURCC ('Y', 'u', 'v', '2'):
|
|
_codec ("Raw packed YUV 4:2:2");
|
|
caps = gst_caps_new_simple ("video/x-raw-yuv",
|
|
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'),
|
|
NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('2', 'v', 'u', 'y'):
|
|
_codec ("Raw packed YUV 4:2:0");
|
|
caps = gst_caps_new_simple ("video/x-raw-yuv",
|
|
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'),
|
|
NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('v', '2', '1', '0'):
|
|
_codec ("Raw packed YUV 10-bit 4:2:2");
|
|
caps = gst_caps_new_simple ("video/x-raw-yuv",
|
|
"format", GST_TYPE_FOURCC, GST_MAKE_FOURCC ('v', '2', '1', '0'),
|
|
NULL);
|
|
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', '5'): // HDV 720p25
|
|
case GST_MAKE_FOURCC ('h', 'd', 'v', '6'): // HDV 1080i60
|
|
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', '2'): // XDCAM HD 1080i60
|
|
case GST_MAKE_FOURCC ('A', 'V', 'm', 'p'): // AVID IMX PAL
|
|
case GST_MAKE_FOURCC ('m', 'p', 'g', '2'): // AVID IMX PAL
|
|
_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_simple ("image/gif", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('h', '2', '6', '3'):
|
|
case GST_MAKE_FOURCC ('H', '2', '6', '3'):
|
|
case GST_MAKE_FOURCC ('s', '2', '6', '3'):
|
|
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", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('m', 'p', '4', 'v'):
|
|
_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 ('3', 'I', 'V', '1'):
|
|
case GST_MAKE_FOURCC ('3', 'I', 'V', '2'):
|
|
_codec ("3ivX video");
|
|
caps = gst_caps_new_simple ("video/x-3ivx", 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 ('X', 'V', 'I', 'D'):
|
|
case GST_MAKE_FOURCC ('x', 'v', 'i', 'd'):
|
|
_codec ("XVID MPEG-4");
|
|
caps = gst_caps_new_simple ("video/x-xvid", NULL);
|
|
break;
|
|
|
|
case GST_MAKE_FOURCC ('F', 'M', 'P', '4'):
|
|
case GST_MAKE_FOURCC ('U', 'M', 'P', '4'):
|
|
caps = gst_caps_new_simple ("video/mpeg",
|
|
"mpegversion", G_TYPE_INT, 4, NULL);
|
|
if (codec_name)
|
|
*codec_name = g_strdup ("FFmpeg MPEG-4");
|
|
break;
|
|
|
|
case GST_MAKE_FOURCC ('c', 'v', 'i', 'd'):
|
|
_codec ("Cinepak");
|
|
caps = gst_caps_new_simple ("video/x-cinepak", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('q', 'd', 'r', 'w'):
|
|
_codec ("Apple QuickDraw");
|
|
caps = gst_caps_new_simple ("video/x-qdrw", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('r', 'p', 'z', 'a'):
|
|
_codec ("Apple video");
|
|
caps = gst_caps_new_simple ("video/x-apple-video", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('a', 'v', 'c', '1'):
|
|
_codec ("H.264 / AVC");
|
|
caps = gst_caps_new_simple ("video/x-h264", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('r', 'l', 'e', ' '):
|
|
_codec ("Run-length encoding");
|
|
caps = gst_caps_new_simple ("video/x-rle",
|
|
"layout", G_TYPE_STRING, "quicktime", NULL);
|
|
break;
|
|
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 GST_MAKE_FOURCC ('d', 'v', 'c', 'p'):
|
|
case GST_MAKE_FOURCC ('d', 'v', 'c', ' '):
|
|
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 GST_MAKE_FOURCC ('d', 'v', '5', 'n'): //DVCPRO50 NTSC
|
|
case GST_MAKE_FOURCC ('d', 'v', '5', 'p'): //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_simple ("video/x-smc", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('V', 'P', '3', '1'):
|
|
_codec ("VP3");
|
|
caps = gst_caps_new_simple ("video/x-vp3", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('X', 'i', 'T', 'h'):
|
|
_codec ("Theora");
|
|
caps = gst_caps_new_simple ("video/x-theora", NULL);
|
|
/* theora uses one byte of padding in the data stream because it does not
|
|
* allow 0 sized packets while theora does */
|
|
stream->padding = 1;
|
|
break;
|
|
case GST_MAKE_FOURCC ('d', 'r', 'a', 'c'):
|
|
_codec ("Dirac");
|
|
caps = gst_caps_new_simple ("video/x-dirac", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('t', 'i', 'f', 'f'):
|
|
_codec ("TIFF still images");
|
|
caps = gst_caps_new_simple ("image/tiff", NULL);
|
|
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 GST_MAKE_FOURCC ('k', 'p', 'c', 'd'):
|
|
default:
|
|
{
|
|
char *s;
|
|
|
|
s = g_strdup_printf ("video/x-gst-fourcc-%" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
caps = gst_caps_new_simple (s, NULL);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* enable clipping for raw video streams */
|
|
s = gst_caps_get_structure (caps, 0);
|
|
name = gst_structure_get_name (s);
|
|
if (g_str_has_prefix (name, "video/x-raw-")) {
|
|
stream->need_clip = TRUE;
|
|
}
|
|
return caps;
|
|
}
|
|
|
|
static GstCaps *
|
|
qtdemux_audio_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
guint32 fourcc, const guint8 * data, int len, gchar ** codec_name)
|
|
{
|
|
GstCaps *caps;
|
|
const GstStructure *s;
|
|
const gchar *name;
|
|
gint endian = 0;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "resolve fourcc %08x", fourcc);
|
|
|
|
switch (fourcc) {
|
|
case GST_MAKE_FOURCC ('N', 'O', 'N', 'E'):
|
|
case GST_MAKE_FOURCC ('r', 'a', 'w', ' '):
|
|
_codec ("Raw 8-bit PCM audio");
|
|
caps = gst_caps_new_simple ("audio/x-raw-int", "width", G_TYPE_INT, 8,
|
|
"depth", G_TYPE_INT, 8, "signed", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('t', 'w', 'o', 's'):
|
|
endian = G_BIG_ENDIAN;
|
|
/* fall-through */
|
|
case GST_MAKE_FOURCC ('s', 'o', 'w', 't'):
|
|
{
|
|
gchar *str;
|
|
gint depth;
|
|
|
|
if (!endian)
|
|
endian = G_LITTLE_ENDIAN;
|
|
|
|
depth = stream->bytes_per_packet * 8;
|
|
str = g_strdup_printf ("Raw %d-bit PCM audio", depth);
|
|
_codec (str);
|
|
g_free (str);
|
|
caps = gst_caps_new_simple ("audio/x-raw-int",
|
|
"width", G_TYPE_INT, depth, "depth", G_TYPE_INT, depth,
|
|
"endianness", G_TYPE_INT, endian,
|
|
"signed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
break;
|
|
}
|
|
case GST_MAKE_FOURCC ('f', 'l', '6', '4'):
|
|
_codec ("Raw 64-bit floating-point audio");
|
|
caps = gst_caps_new_simple ("audio/x-raw-float", "width", G_TYPE_INT, 64,
|
|
"endianness", G_TYPE_INT, G_BIG_ENDIAN, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('f', 'l', '3', '2'):
|
|
_codec ("Raw 32-bit floating-point audio");
|
|
caps = gst_caps_new_simple ("audio/x-raw-float", "width", G_TYPE_INT, 32,
|
|
"endianness", G_TYPE_INT, G_BIG_ENDIAN, NULL);
|
|
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-int", "width", G_TYPE_INT, 24,
|
|
"depth", G_TYPE_INT, 24,
|
|
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
|
|
"signed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('i', 'n', '3', '2'):
|
|
_codec ("Raw 32-bit PCM audio");
|
|
caps = gst_caps_new_simple ("audio/x-raw-int", "width", G_TYPE_INT, 32,
|
|
"depth", G_TYPE_INT, 32,
|
|
"endianness", G_TYPE_INT, G_BIG_ENDIAN,
|
|
"signed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('u', 'l', 'a', 'w'):
|
|
_codec ("Mu-law audio");
|
|
caps = gst_caps_new_simple ("audio/x-mulaw", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('a', 'l', 'a', 'w'):
|
|
_codec ("A-law audio");
|
|
caps = gst_caps_new_simple ("audio/x-alaw", NULL);
|
|
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 ("IMA Loki SDL MJPEG ADPCM");
|
|
/* Loki ADPCM, See #550288 for a file that only decodes
|
|
* with the smjpeg variant of the ADPCM decoder. */
|
|
caps = gst_caps_new_simple ("audio/x-adpcm",
|
|
"layout", G_TYPE_STRING, "smjpeg", 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 GST_MAKE_FOURCC ('.', 'm', 'p', '3'):
|
|
_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 0x20736d:
|
|
case GST_MAKE_FOURCC ('a', 'c', '-', '3'):
|
|
_codec ("AC-3 audio");
|
|
caps = gst_caps_new_simple ("audio/x-ac3", NULL);
|
|
stream->sampled = TRUE;
|
|
break;
|
|
case GST_MAKE_FOURCC ('M', 'A', 'C', '3'):
|
|
_codec ("MACE-3");
|
|
caps = gst_caps_new_simple ("audio/x-mace",
|
|
"maceversion", G_TYPE_INT, 3, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('M', 'A', 'C', '6'):
|
|
_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_simple ("application/ogg", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('d', 'v', 'c', 'a'):
|
|
_codec ("DV audio");
|
|
caps = gst_caps_new_simple ("audio/x-dv", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('m', 'p', '4', 'a'):
|
|
_codec ("MPEG-4 AAC audio");
|
|
caps = gst_caps_new_simple ("audio/mpeg",
|
|
"mpegversion", G_TYPE_INT, 4, "framed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('Q', 'D', 'M', 'C'):
|
|
_codec ("QDesign Music");
|
|
caps = gst_caps_new_simple ("audio/x-qdm", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('Q', 'D', 'M', '2'):
|
|
_codec ("QDesign Music v.2");
|
|
/* FIXME: QDesign music version 2 (no constant) */
|
|
if (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_simple ("audio/x-qdm2", NULL);
|
|
}
|
|
break;
|
|
case GST_MAKE_FOURCC ('a', 'g', 's', 'm'):
|
|
_codec ("GSM audio");
|
|
caps = gst_caps_new_simple ("audio/x-gsm", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('s', 'a', 'm', 'r'):
|
|
_codec ("AMR audio");
|
|
caps = gst_caps_new_simple ("audio/AMR", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('s', 'a', 'w', 'b'):
|
|
_codec ("AMR-WB audio");
|
|
caps = gst_caps_new_simple ("audio/AMR-WB", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('i', 'm', 'a', '4'):
|
|
_codec ("Quicktime IMA ADPCM");
|
|
caps = gst_caps_new_simple ("audio/x-adpcm",
|
|
"layout", G_TYPE_STRING, "quicktime", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('a', 'l', 'a', 'c'):
|
|
_codec ("Apple lossless audio");
|
|
caps = gst_caps_new_simple ("audio/x-alac", NULL);
|
|
break;
|
|
case GST_MAKE_FOURCC ('Q', 'c', 'l', 'p'):
|
|
_codec ("QualComm PureVoice");
|
|
caps = gst_caps_from_string ("audio/qcelp");
|
|
break;
|
|
case GST_MAKE_FOURCC ('q', 't', 'v', 'r'):
|
|
/* ? */
|
|
default:
|
|
{
|
|
char *s;
|
|
|
|
s = g_strdup_printf ("audio/x-gst-fourcc-%" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
caps = gst_caps_new_simple (s, NULL);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* 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;
|
|
}
|
|
return caps;
|
|
}
|
|
|
|
static GstCaps *
|
|
qtdemux_subp_caps (GstQTDemux * qtdemux, QtDemuxStream * stream,
|
|
guint32 fourcc, const guint8 * stsd_data, gchar ** codec_name)
|
|
{
|
|
GstCaps *caps;
|
|
|
|
GST_DEBUG_OBJECT (qtdemux, "resolve fourcc %08x", fourcc);
|
|
|
|
switch (fourcc) {
|
|
case GST_MAKE_FOURCC ('m', 'p', '4', 's'):
|
|
_codec ("DVD subtitle");
|
|
caps = gst_caps_new_simple ("video/x-dvd-subpicture", NULL);
|
|
break;
|
|
default:
|
|
{
|
|
char *s;
|
|
|
|
s = g_strdup_printf ("audio/x-gst-fourcc-%" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (fourcc));
|
|
caps = gst_caps_new_simple (s, NULL);
|
|
break;
|
|
}
|
|
}
|
|
return caps;
|
|
}
|