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iret was never read outside of that loop, and is always being exited if iret was != GST_FLOW_OK anyway.
5695 lines
166 KiB
C
5695 lines
166 KiB
C
/* GStreamer Matroska muxer/demuxer
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* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
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* (c) 2006 Tim-Philipp Müller <tim centricular net>
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* (c) 2008 Sebastian Dröge <slomo@circular-chaos.org>
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*
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* matroska-demux.c: matroska file/stream demuxer
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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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/* TODO: check CRC32 if present
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* TODO: there can be a segment after the first segment. Handle like
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* chained oggs. Fixes #334082
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* TODO: Test samples: http://www.matroska.org/samples/matrix/index.html
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* http://samples.mplayerhq.hu/Matroska/
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* TODO: check if demuxing is done correct for all codecs according to spec
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* TODO: seeking with incomplete or without CUE
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*/
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/**
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* SECTION:element-matroskademux
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*
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* matroskademux demuxes a Matroska file into the different contained streams.
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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 -v filesrc location=/path/to/mkv ! matroskademux ! vorbisdec ! audioconvert ! audioresample ! autoaudiosink
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* ]| This pipeline demuxes a Matroska file and outputs the contained Vorbis audio.
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* </refsect2>
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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 <math.h>
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#include <string.h>
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/* For AVI compatibility mode
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and for fourcc stuff */
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#include <gst/riff/riff-read.h>
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#include <gst/riff/riff-ids.h>
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#include <gst/riff/riff-media.h>
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#include <gst/tag/tag.h>
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#include <gst/base/gsttypefindhelper.h>
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#ifdef HAVE_ZLIB
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#include <zlib.h>
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#endif
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#ifdef HAVE_BZ2
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#include <bzlib.h>
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#endif
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#include "lzo.h"
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#include "matroska-demux.h"
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#include "matroska-ids.h"
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GST_DEBUG_CATEGORY_STATIC (matroskademux_debug);
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#define GST_CAT_DEFAULT matroskademux_debug
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#define DEBUG_ELEMENT_START(demux, ebml, element) \
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GST_DEBUG_OBJECT (demux, "Parsing " element " element at offset %" \
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G_GUINT64_FORMAT, ebml->offset)
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#define DEBUG_ELEMENT_STOP(demux, ebml, element, ret) \
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GST_DEBUG_OBJECT (demux, "Parsing " element " element at offset %" \
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G_GUINT64_FORMAT " finished with '%s'", ebml->offset, \
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gst_flow_get_name (ret))
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enum
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{
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ARG_0,
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ARG_METADATA,
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ARG_STREAMINFO
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};
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static GstStaticPadTemplate sink_templ = 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/x-matroska")
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);
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/* TODO: fill in caps! */
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static GstStaticPadTemplate audio_src_templ =
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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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);
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static GstStaticPadTemplate video_src_templ =
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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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);
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static GstStaticPadTemplate subtitle_src_templ =
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GST_STATIC_PAD_TEMPLATE ("subtitle_%02d",
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GST_PAD_SRC,
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GST_PAD_SOMETIMES,
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GST_STATIC_CAPS ("text/plain; application/x-ssa; application/x-ass; "
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"application/x-usf; video/x-dvd-subpicture; "
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"application/x-subtitle-unknown")
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);
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static GstFlowReturn gst_matroska_demux_parse_contents (GstMatroskaDemux *
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demux);
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/* element functions */
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static void gst_matroska_demux_loop (GstPad * pad);
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static gboolean gst_matroska_demux_element_send_event (GstElement * element,
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GstEvent * event);
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static gboolean gst_matroska_demux_element_query (GstElement * element,
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GstQuery * query);
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/* pad functions */
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static gboolean gst_matroska_demux_sink_activate_pull (GstPad * sinkpad,
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gboolean active);
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static gboolean gst_matroska_demux_sink_activate (GstPad * sinkpad);
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static gboolean gst_matroska_demux_handle_seek_event (GstMatroskaDemux * demux,
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GstPad * pad, GstEvent * event);
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static gboolean gst_matroska_demux_handle_src_event (GstPad * pad,
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GstEvent * event);
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static const GstQueryType *gst_matroska_demux_get_src_query_types (GstPad *
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pad);
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static gboolean gst_matroska_demux_handle_src_query (GstPad * pad,
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GstQuery * query);
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static GstStateChangeReturn
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gst_matroska_demux_change_state (GstElement * element,
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GstStateChange transition);
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/* caps functions */
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static GstCaps *gst_matroska_demux_video_caps (GstMatroskaTrackVideoContext
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* videocontext,
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const gchar * codec_id, guint8 * data, guint size, gchar ** codec_name);
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static GstCaps *gst_matroska_demux_audio_caps (GstMatroskaTrackAudioContext
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* audiocontext,
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const gchar * codec_id, guint8 * data, guint size, gchar ** codec_name);
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static GstCaps
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* gst_matroska_demux_subtitle_caps (GstMatroskaTrackSubtitleContext *
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subtitlecontext, const gchar * codec_id, gpointer data, guint size);
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/* stream methods */
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static void gst_matroska_demux_reset (GstElement * element);
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GST_BOILERPLATE (GstMatroskaDemux, gst_matroska_demux, GstEbmlRead,
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GST_TYPE_EBML_READ);
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static void
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gst_matroska_demux_base_init (gpointer 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 (&video_src_templ));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&audio_src_templ));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&subtitle_src_templ));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&sink_templ));
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gst_element_class_set_details_simple (element_class, "Matroska demuxer",
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"Codec/Demuxer",
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"Demuxes a Matroska Stream into video/audio/subtitles",
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"Ronald Bultje <rbultje@ronald.bitfreak.net>");
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}
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static void
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gst_matroska_demux_finalize (GObject * object)
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{
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GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (object);
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if (demux->src) {
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g_ptr_array_free (demux->src, TRUE);
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demux->src = NULL;
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}
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_matroska_demux_class_init (GstMatroskaDemuxClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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GstElementClass *gstelement_class = (GstElementClass *) klass;
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GST_DEBUG_CATEGORY_INIT (matroskademux_debug, "matroskademux", 0,
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"Matroska demuxer");
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gobject_class->finalize = gst_matroska_demux_finalize;
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_matroska_demux_change_state);
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gstelement_class->send_event =
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GST_DEBUG_FUNCPTR (gst_matroska_demux_element_send_event);
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gstelement_class->query =
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GST_DEBUG_FUNCPTR (gst_matroska_demux_element_query);
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}
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static void
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gst_matroska_demux_init (GstMatroskaDemux * demux,
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GstMatroskaDemuxClass * klass)
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{
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demux->sinkpad = gst_pad_new_from_static_template (&sink_templ, "sink");
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gst_pad_set_activate_function (demux->sinkpad,
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GST_DEBUG_FUNCPTR (gst_matroska_demux_sink_activate));
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gst_pad_set_activatepull_function (demux->sinkpad,
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GST_DEBUG_FUNCPTR (gst_matroska_demux_sink_activate_pull));
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gst_element_add_pad (GST_ELEMENT (demux), demux->sinkpad);
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GST_EBML_READ (demux)->sinkpad = demux->sinkpad;
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/* initial stream no. */
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demux->src = NULL;
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demux->writing_app = NULL;
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demux->muxing_app = NULL;
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demux->index = NULL;
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/* finish off */
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gst_matroska_demux_reset (GST_ELEMENT (demux));
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}
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static void
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gst_matroska_track_free (GstMatroskaTrackContext * track)
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{
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g_free (track->codec_id);
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g_free (track->codec_name);
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g_free (track->name);
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g_free (track->language);
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g_free (track->codec_priv);
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g_free (track->codec_state);
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if (track->encodings != NULL) {
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int i;
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for (i = 0; i < track->encodings->len; ++i) {
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GstMatroskaTrackEncoding *enc = &g_array_index (track->encodings,
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GstMatroskaTrackEncoding,
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i);
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g_free (enc->comp_settings);
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}
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g_array_free (track->encodings, TRUE);
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}
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if (track->pending_tags)
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gst_tag_list_free (track->pending_tags);
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g_free (track);
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}
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/*
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* Returns the aggregated GstFlowReturn.
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*/
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static GstFlowReturn
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gst_matroska_demux_combine_flows (GstMatroskaDemux * demux,
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GstMatroskaTrackContext * track, GstFlowReturn ret)
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{
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guint i;
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/* store the value */
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track->last_flow = ret;
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/* any other error that is not-linked can be returned right away */
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if (ret != GST_FLOW_NOT_LINKED)
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goto done;
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/* only return NOT_LINKED if all other pads returned NOT_LINKED */
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g_assert (demux->src->len == demux->num_streams);
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for (i = 0; i < demux->src->len; i++) {
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GstMatroskaTrackContext *ostream = g_ptr_array_index (demux->src, i);
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if (ostream == NULL)
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continue;
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ret = ostream->last_flow;
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/* some other return value (must be SUCCESS but we can return
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* other values as well) */
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if (ret != GST_FLOW_NOT_LINKED)
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goto done;
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}
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/* if we get here, all other pads were unlinked and we return
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* NOT_LINKED then */
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done:
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GST_LOG_OBJECT (demux, "combined return %s", gst_flow_get_name (ret));
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return ret;
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}
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static void
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gst_matroska_demux_reset (GstElement * element)
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{
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GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
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guint i;
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GST_DEBUG_OBJECT (demux, "Resetting state");
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/* reset input */
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demux->state = GST_MATROSKA_DEMUX_STATE_START;
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/* clean up existing streams */
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if (demux->src) {
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g_assert (demux->src->len == demux->num_streams);
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for (i = 0; i < demux->src->len; i++) {
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GstMatroskaTrackContext *context = g_ptr_array_index (demux->src, i);
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if (context->pad != NULL)
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gst_element_remove_pad (GST_ELEMENT (demux), context->pad);
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gst_caps_replace (&context->caps, NULL);
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gst_matroska_track_free (context);
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}
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g_ptr_array_free (demux->src, TRUE);
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}
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demux->src = g_ptr_array_new ();
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demux->num_streams = 0;
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demux->num_a_streams = 0;
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demux->num_t_streams = 0;
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demux->num_v_streams = 0;
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/* reset media info */
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g_free (demux->writing_app);
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demux->writing_app = NULL;
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g_free (demux->muxing_app);
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demux->muxing_app = NULL;
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/* reset indexes */
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if (demux->index) {
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g_array_free (demux->index, TRUE);
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demux->index = NULL;
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}
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/* reset timers */
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demux->clock = NULL;
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demux->time_scale = 1000000;
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demux->created = G_MININT64;
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demux->index_parsed = FALSE;
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demux->tracks_parsed = FALSE;
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demux->segmentinfo_parsed = FALSE;
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demux->attachments_parsed = FALSE;
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g_list_foreach (demux->tags_parsed, (GFunc) gst_ebml_level_free, NULL);
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g_list_free (demux->tags_parsed);
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demux->tags_parsed = NULL;
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gst_segment_init (&demux->segment, GST_FORMAT_TIME);
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demux->duration = -1;
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if (demux->close_segment) {
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gst_event_unref (demux->close_segment);
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demux->close_segment = NULL;
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}
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|
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if (demux->new_segment) {
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gst_event_unref (demux->new_segment);
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demux->new_segment = NULL;
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}
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}
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static gint
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gst_matroska_demux_stream_from_num (GstMatroskaDemux * demux, guint track_num)
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{
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guint n;
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g_assert (demux->src->len == demux->num_streams);
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for (n = 0; n < demux->src->len; n++) {
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GstMatroskaTrackContext *context = g_ptr_array_index (demux->src, n);
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|
|
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if (context->num == track_num) {
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return n;
|
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}
|
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}
|
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|
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if (n == demux->num_streams)
|
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GST_WARNING_OBJECT (demux,
|
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"Failed to find corresponding pad for tracknum %d", track_num);
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|
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return -1;
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}
|
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|
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static gint
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gst_matroska_demux_encoding_cmp (GstMatroskaTrackEncoding * a,
|
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GstMatroskaTrackEncoding * b)
|
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{
|
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if (b->order > a->order)
|
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return 1;
|
|
else if (b->order < a->order)
|
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return -1;
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else
|
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return 0;
|
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}
|
|
|
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static gboolean
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gst_matroska_demux_encoding_order_unique (GArray * encodings, guint64 order)
|
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{
|
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gint i;
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|
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if (encodings == NULL || encodings->len == 0)
|
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return TRUE;
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|
|
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for (i = 0; i < encodings->len; i++)
|
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if (g_array_index (encodings, GstMatroskaTrackEncoding, i).order == order)
|
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return FALSE;
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|
|
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return TRUE;
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}
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|
|
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static GstFlowReturn
|
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gst_matroska_demux_read_track_encoding (GstMatroskaDemux * demux,
|
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GstMatroskaTrackContext * context)
|
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{
|
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GstMatroskaTrackEncoding enc = { 0, };
|
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GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret;
|
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guint32 id;
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|
|
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DEBUG_ELEMENT_START (demux, ebml, "ContentEncoding");
|
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/* Set default values */
|
|
enc.scope = 1;
|
|
/* All other default values are 0 */
|
|
|
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if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
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DEBUG_ELEMENT_STOP (demux, ebml, "ContentEncoding", ret);
|
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return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
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if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
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break;
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|
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if (demux->level_up) {
|
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demux->level_up--;
|
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break;
|
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}
|
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|
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switch (id) {
|
|
case GST_MATROSKA_ID_CONTENTENCODINGORDER:{
|
|
guint64 num;
|
|
|
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if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
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if (!gst_matroska_demux_encoding_order_unique (context->encodings, num)) {
|
|
GST_ERROR_OBJECT (demux, "ContentEncodingOrder %" G_GUINT64_FORMAT
|
|
"is not unique for track %d", num, context->num);
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "ContentEncodingOrder: %" G_GUINT64_FORMAT,
|
|
num);
|
|
enc.order = num;
|
|
break;
|
|
}
|
|
case GST_MATROSKA_ID_CONTENTENCODINGSCOPE:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num > 7 && num == 0) {
|
|
GST_ERROR_OBJECT (demux, "Invalid ContentEncodingScope %"
|
|
G_GUINT64_FORMAT, num);
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "ContentEncodingScope: %" G_GUINT64_FORMAT,
|
|
num);
|
|
enc.scope = num;
|
|
|
|
break;
|
|
}
|
|
case GST_MATROSKA_ID_CONTENTENCODINGTYPE:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num > 1) {
|
|
GST_ERROR_OBJECT (demux, "Invalid ContentEncodingType %"
|
|
G_GUINT64_FORMAT, num);
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
} else if (num != 0) {
|
|
GST_ERROR_OBJECT (demux, "Encrypted tracks are not supported yet");
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
GST_DEBUG_OBJECT (demux, "ContentEncodingType: %" G_GUINT64_FORMAT,
|
|
num);
|
|
enc.type = num;
|
|
break;
|
|
}
|
|
case GST_MATROSKA_ID_CONTENTCOMPRESSION:{
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "ContentCompression");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up,
|
|
&id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
case GST_MATROSKA_ID_CONTENTCOMPALGO:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK) {
|
|
break;
|
|
}
|
|
if (num > 3) {
|
|
GST_ERROR_OBJECT (demux, "Invalid ContentCompAlgo %"
|
|
G_GUINT64_FORMAT, num);
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
GST_DEBUG_OBJECT (demux, "ContentCompAlgo: %" G_GUINT64_FORMAT,
|
|
num);
|
|
enc.comp_algo = num;
|
|
|
|
break;
|
|
}
|
|
case GST_MATROSKA_ID_CONTENTCOMPSETTINGS:{
|
|
guint8 *data;
|
|
guint64 size;
|
|
|
|
if ((ret =
|
|
gst_ebml_read_binary (ebml, &id, &data,
|
|
&size)) != GST_FLOW_OK) {
|
|
break;
|
|
}
|
|
enc.comp_settings = data;
|
|
enc.comp_settings_length = size;
|
|
GST_DEBUG_OBJECT (demux,
|
|
"ContentCompSettings of size %" G_GUINT64_FORMAT, size);
|
|
break;
|
|
}
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown ContentCompression subelement 0x%x - ignoring", id);
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "ContentCompression", ret);
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_CONTENTENCRYPTION:
|
|
GST_ERROR_OBJECT (demux, "Encrypted tracks not yet supported");
|
|
gst_ebml_read_skip (ebml);
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown ContentEncoding subelement 0x%x - ignoring", id);
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "ContentEncoding", ret);
|
|
if (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED)
|
|
return ret;
|
|
|
|
/* TODO: Check if the combination of values is valid */
|
|
|
|
g_array_append_val (context->encodings, enc);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_decompress_data (GstMatroskaTrackEncoding * enc,
|
|
guint8 ** data_out, guint * size_out,
|
|
GstMatroskaTrackCompressionAlgorithm algo)
|
|
{
|
|
guint8 *new_data = NULL;
|
|
guint new_size = 0;
|
|
|
|
guint8 *data = *data_out;
|
|
guint size = *size_out;
|
|
|
|
gboolean ret = TRUE;
|
|
|
|
if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_ZLIB) {
|
|
#ifdef HAVE_ZLIB
|
|
/* zlib encoded data */
|
|
z_stream zstream;
|
|
guint orig_size;
|
|
int result;
|
|
|
|
orig_size = size;
|
|
zstream.zalloc = (alloc_func) 0;
|
|
zstream.zfree = (free_func) 0;
|
|
zstream.opaque = (voidpf) 0;
|
|
if (inflateInit (&zstream) != Z_OK) {
|
|
GST_WARNING ("zlib initialization failed.");
|
|
ret = FALSE;
|
|
goto out;
|
|
}
|
|
zstream.next_in = (Bytef *) data;
|
|
zstream.avail_in = orig_size;
|
|
new_size = orig_size;
|
|
new_data = g_malloc (new_size);
|
|
zstream.avail_out = new_size;
|
|
zstream.next_out = (Bytef *) new_data;
|
|
|
|
do {
|
|
result = inflate (&zstream, Z_NO_FLUSH);
|
|
if (result != Z_OK && result != Z_STREAM_END) {
|
|
GST_WARNING ("zlib decompression failed.");
|
|
g_free (new_data);
|
|
inflateEnd (&zstream);
|
|
break;
|
|
}
|
|
new_size += 4000;
|
|
new_data = g_realloc (new_data, new_size);
|
|
zstream.next_out = (Bytef *) (new_data + zstream.total_out);
|
|
zstream.avail_out += 4000;
|
|
} while (zstream.avail_in != 0 && result != Z_STREAM_END);
|
|
|
|
if (result != Z_STREAM_END) {
|
|
ret = FALSE;
|
|
goto out;
|
|
} else {
|
|
new_size = zstream.total_out;
|
|
inflateEnd (&zstream);
|
|
}
|
|
#else
|
|
GST_WARNING ("zlib encoded tracks not supported.");
|
|
ret = FALSE;
|
|
goto out;
|
|
#endif
|
|
} else if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_BZLIB) {
|
|
#ifdef HAVE_BZ2
|
|
/* bzip2 encoded data */
|
|
bz_stream bzstream;
|
|
guint orig_size;
|
|
int result;
|
|
|
|
bzstream.bzalloc = NULL;
|
|
bzstream.bzfree = NULL;
|
|
bzstream.opaque = NULL;
|
|
orig_size = size;
|
|
|
|
if ((result = BZ2_bzDecompressInit (&bzstream, 0, 0)) != BZ_OK) {
|
|
GST_WARNING ("bzip2 initialization failed.");
|
|
ret = FALSE;
|
|
goto out;
|
|
}
|
|
|
|
bzstream.next_in = (char *) data;
|
|
bzstream.avail_in = orig_size;
|
|
new_size = orig_size;
|
|
new_data = g_malloc (new_size);
|
|
bzstream.avail_out = new_size;
|
|
bzstream.next_out = (char *) new_data;
|
|
|
|
do {
|
|
result = BZ2_bzDecompress (&bzstream);
|
|
if (result != BZ_OK && result != BZ_STREAM_END) {
|
|
GST_WARNING ("bzip2 decompression failed.");
|
|
g_free (new_data);
|
|
BZ2_bzDecompressEnd (&bzstream);
|
|
break;
|
|
}
|
|
new_size += 4000;
|
|
new_data = g_realloc (new_data, new_size);
|
|
bzstream.next_out = (char *) (new_data + bzstream.total_out_lo32);
|
|
bzstream.avail_out += 4000;
|
|
} while (bzstream.avail_in != 0 && result != BZ_STREAM_END);
|
|
|
|
if (result != BZ_STREAM_END) {
|
|
ret = FALSE;
|
|
goto out;
|
|
} else {
|
|
new_size = bzstream.total_out_lo32;
|
|
BZ2_bzDecompressEnd (&bzstream);
|
|
}
|
|
#else
|
|
GST_WARNING ("bzip2 encoded tracks not supported.");
|
|
ret = FALSE;
|
|
goto out;
|
|
#endif
|
|
} else if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_LZO1X) {
|
|
/* lzo encoded data */
|
|
int result;
|
|
int orig_size, out_size;
|
|
|
|
orig_size = size;
|
|
out_size = size;
|
|
new_size = size;
|
|
new_data = g_malloc (new_size);
|
|
|
|
do {
|
|
orig_size = size;
|
|
out_size = new_size;
|
|
|
|
result = lzo1x_decode (new_data, &out_size, data, &orig_size);
|
|
|
|
if (orig_size > 0) {
|
|
new_size += 4000;
|
|
new_data = g_realloc (new_data, new_size);
|
|
}
|
|
} while (orig_size > 0 && result == LZO_OUTPUT_FULL);
|
|
|
|
new_size -= out_size;
|
|
|
|
if (result != LZO_OUTPUT_FULL) {
|
|
GST_WARNING ("lzo decompression failed");
|
|
g_free (new_data);
|
|
|
|
ret = FALSE;
|
|
goto out;
|
|
}
|
|
|
|
} else if (algo == GST_MATROSKA_TRACK_COMPRESSION_ALGORITHM_HEADERSTRIP) {
|
|
/* header stripped encoded data */
|
|
if (enc->comp_settings_length > 0) {
|
|
new_data = g_malloc (size + enc->comp_settings_length);
|
|
new_size = size + enc->comp_settings_length;
|
|
|
|
memcpy (new_data, enc->comp_settings, enc->comp_settings_length);
|
|
memcpy (new_data + enc->comp_settings_length, data, size);
|
|
}
|
|
} else {
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
out:
|
|
|
|
if (!ret) {
|
|
*data_out = NULL;
|
|
*size_out = 0;
|
|
} else {
|
|
*data_out = new_data;
|
|
*size_out = new_size;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_decode_data (GArray * encodings, guint8 ** data_out,
|
|
guint * size_out, GstMatroskaTrackEncodingScope scope, gboolean free)
|
|
{
|
|
guint8 *data;
|
|
guint size;
|
|
gboolean ret = TRUE;
|
|
gint i;
|
|
|
|
g_return_val_if_fail (encodings != NULL, FALSE);
|
|
g_return_val_if_fail (data_out != NULL && *data_out != NULL, FALSE);
|
|
g_return_val_if_fail (size_out != NULL, FALSE);
|
|
|
|
data = *data_out;
|
|
size = *size_out;
|
|
|
|
for (i = 0; i < encodings->len; i++) {
|
|
GstMatroskaTrackEncoding *enc =
|
|
&g_array_index (encodings, GstMatroskaTrackEncoding, i);
|
|
guint8 *new_data = NULL;
|
|
guint new_size = 0;
|
|
|
|
if ((enc->scope & scope) == 0)
|
|
continue;
|
|
|
|
/* Encryption not supported yet */
|
|
if (enc->type != 0) {
|
|
ret = FALSE;
|
|
break;
|
|
}
|
|
|
|
new_data = data;
|
|
new_size = size;
|
|
|
|
ret =
|
|
gst_matroska_decompress_data (enc, &new_data, &new_size,
|
|
enc->comp_algo);
|
|
|
|
if (!ret)
|
|
break;
|
|
|
|
if ((data == *data_out && free) || (data != *data_out))
|
|
g_free (data);
|
|
|
|
data = new_data;
|
|
size = new_size;
|
|
}
|
|
|
|
if (!ret) {
|
|
if ((data == *data_out && free) || (data != *data_out))
|
|
g_free (data);
|
|
|
|
*data_out = NULL;
|
|
*size_out = 0;
|
|
} else {
|
|
*data_out = data;
|
|
*size_out = size;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_matroska_decode_buffer (GstMatroskaTrackContext * context, GstBuffer * buf)
|
|
{
|
|
guint8 *data;
|
|
guint size;
|
|
GstBuffer *new_buf;
|
|
|
|
g_return_val_if_fail (GST_IS_BUFFER (buf), NULL);
|
|
|
|
data = GST_BUFFER_DATA (buf);
|
|
size = GST_BUFFER_SIZE (buf);
|
|
|
|
g_return_val_if_fail (data != NULL && size > 0, buf);
|
|
|
|
if (gst_matroska_decode_data (context->encodings, &data, &size,
|
|
GST_MATROSKA_TRACK_ENCODING_SCOPE_FRAME, FALSE)) {
|
|
new_buf = gst_buffer_new ();
|
|
GST_BUFFER_MALLOCDATA (new_buf) = (guint8 *) data;
|
|
GST_BUFFER_DATA (new_buf) = (guint8 *) data;
|
|
GST_BUFFER_SIZE (new_buf) = size;
|
|
|
|
gst_buffer_unref (buf);
|
|
buf = new_buf;
|
|
|
|
return buf;
|
|
} else {
|
|
gst_buffer_unref (buf);
|
|
return NULL;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_decode_content_encodings (GArray * encodings)
|
|
{
|
|
gint i;
|
|
|
|
if (encodings == NULL)
|
|
return GST_FLOW_OK;
|
|
|
|
for (i = 0; i < encodings->len; i++) {
|
|
GstMatroskaTrackEncoding *enc =
|
|
&g_array_index (encodings, GstMatroskaTrackEncoding, i);
|
|
GstMatroskaTrackEncoding *enc2;
|
|
guint8 *data = NULL;
|
|
guint size;
|
|
|
|
if ((enc->scope & GST_MATROSKA_TRACK_ENCODING_SCOPE_NEXT_CONTENT_ENCODING)
|
|
== 0)
|
|
continue;
|
|
|
|
/* Encryption not supported yet */
|
|
if (enc->type != 0)
|
|
return GST_FLOW_ERROR;
|
|
|
|
if (i + 1 >= encodings->len)
|
|
return GST_FLOW_ERROR;
|
|
|
|
enc2 = &g_array_index (encodings, GstMatroskaTrackEncoding, i + 1);
|
|
|
|
if (enc->comp_settings_length == 0)
|
|
continue;
|
|
|
|
data = enc->comp_settings;
|
|
size = enc->comp_settings_length;
|
|
|
|
if (!gst_matroska_decompress_data (enc, &data, &size, enc->comp_algo))
|
|
return GST_FLOW_ERROR;
|
|
|
|
g_free (enc->comp_settings);
|
|
|
|
enc->comp_settings = data;
|
|
enc->comp_settings_length = size;
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_read_track_encodings (GstMatroskaDemux * demux,
|
|
GstMatroskaTrackContext * context)
|
|
{
|
|
GstFlowReturn ret;
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
guint32 id;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "ContentEncodings");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "ContentEncodings", ret);
|
|
return ret;
|
|
}
|
|
|
|
context->encodings =
|
|
g_array_sized_new (FALSE, FALSE, sizeof (GstMatroskaTrackEncoding), 1);
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
case GST_MATROSKA_ID_CONTENTENCODING:
|
|
ret = gst_matroska_demux_read_track_encoding (demux, context);
|
|
break;
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown ContentEncodings subelement 0x%x - ignoring", id);
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "ContentEncodings", ret);
|
|
if (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED)
|
|
return ret;
|
|
|
|
/* Sort encodings according to their order */
|
|
g_array_sort (context->encodings,
|
|
(GCompareFunc) gst_matroska_demux_encoding_cmp);
|
|
|
|
return gst_matroska_decode_content_encodings (context->encodings);
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_demux_tracknumber_unique (GstMatroskaDemux * demux, guint64 num)
|
|
{
|
|
gint i;
|
|
|
|
g_assert (demux->src->len == demux->num_streams);
|
|
for (i = 0; i < demux->src->len; i++) {
|
|
GstMatroskaTrackContext *context = g_ptr_array_index (demux->src, i);
|
|
|
|
if (context->num == num)
|
|
return FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_add_stream (GstMatroskaDemux * demux)
|
|
{
|
|
GstElementClass *klass = GST_ELEMENT_GET_CLASS (demux);
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstMatroskaTrackContext *context;
|
|
GstPadTemplate *templ = NULL;
|
|
GstCaps *caps = NULL;
|
|
gchar *padname = NULL;
|
|
GstFlowReturn ret;
|
|
guint32 id;
|
|
GstTagList *list = NULL;
|
|
gchar *codec = NULL;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "TrackEntry");
|
|
|
|
/* start with the master */
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "TrackEntry", ret);
|
|
return ret;
|
|
}
|
|
|
|
/* allocate generic... if we know the type, we'll g_renew()
|
|
* with the precise type */
|
|
context = g_new0 (GstMatroskaTrackContext, 1);
|
|
g_ptr_array_add (demux->src, context);
|
|
context->index = demux->num_streams;
|
|
context->type = 0; /* no type yet */
|
|
context->default_duration = 0;
|
|
context->pos = 0;
|
|
context->set_discont = TRUE;
|
|
context->timecodescale = 1.0;
|
|
context->flags =
|
|
GST_MATROSKA_TRACK_ENABLED | GST_MATROSKA_TRACK_DEFAULT |
|
|
GST_MATROSKA_TRACK_LACING;
|
|
context->last_flow = GST_FLOW_OK;
|
|
demux->num_streams++;
|
|
g_assert (demux->src->len == demux->num_streams);
|
|
|
|
GST_DEBUG_OBJECT (demux, "Stream number %d", context->index);
|
|
|
|
/* try reading the trackentry headers */
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
/* track number (unique stream ID) */
|
|
case GST_MATROSKA_ID_TRACKNUMBER:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
GST_ERROR_OBJECT (demux, "Invalid TrackNumber 0");
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
} else if (!gst_matroska_demux_tracknumber_unique (demux, num)) {
|
|
GST_ERROR_OBJECT (demux, "TrackNumber %" G_GUINT64_FORMAT
|
|
" is not unique", num);
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackNumber: %" G_GUINT64_FORMAT, num);
|
|
context->num = num;
|
|
break;
|
|
}
|
|
/* track UID (unique identifier) */
|
|
case GST_MATROSKA_ID_TRACKUID:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
GST_ERROR_OBJECT (demux, "Invalid TrackUID 0");
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackUID: %" G_GUINT64_FORMAT, num);
|
|
context->uid = num;
|
|
break;
|
|
}
|
|
|
|
/* track type (video, audio, combined, subtitle, etc.) */
|
|
case GST_MATROSKA_ID_TRACKTYPE:{
|
|
guint64 track_type;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &track_type)) != GST_FLOW_OK) {
|
|
break;
|
|
}
|
|
|
|
if (context->type != 0 && context->type != track_type) {
|
|
GST_WARNING_OBJECT (demux,
|
|
"More than one tracktype defined in a TrackEntry - skipping");
|
|
break;
|
|
} else if (track_type < 1 || track_type > 254) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackType %" G_GUINT64_FORMAT,
|
|
track_type);
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackType: %" G_GUINT64_FORMAT, track_type);
|
|
|
|
/* ok, so we're actually going to reallocate this thing */
|
|
switch (track_type) {
|
|
case GST_MATROSKA_TRACK_TYPE_VIDEO:
|
|
gst_matroska_track_init_video_context (&context);
|
|
break;
|
|
case GST_MATROSKA_TRACK_TYPE_AUDIO:
|
|
gst_matroska_track_init_audio_context (&context);
|
|
break;
|
|
case GST_MATROSKA_TRACK_TYPE_SUBTITLE:
|
|
gst_matroska_track_init_subtitle_context (&context);
|
|
break;
|
|
case GST_MATROSKA_TRACK_TYPE_COMPLEX:
|
|
case GST_MATROSKA_TRACK_TYPE_LOGO:
|
|
case GST_MATROSKA_TRACK_TYPE_BUTTONS:
|
|
case GST_MATROSKA_TRACK_TYPE_CONTROL:
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown or unsupported TrackType %" G_GUINT64_FORMAT,
|
|
track_type);
|
|
context->type = 0;
|
|
break;
|
|
}
|
|
g_ptr_array_index (demux->src, demux->num_streams - 1) = context;
|
|
break;
|
|
}
|
|
|
|
/* tracktype specific stuff for video */
|
|
case GST_MATROSKA_ID_TRACKVIDEO:{
|
|
GstMatroskaTrackVideoContext *videocontext;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "TrackVideo");
|
|
|
|
if (!gst_matroska_track_init_video_context (&context)) {
|
|
GST_WARNING_OBJECT (demux,
|
|
"TrackVideo element in non-video track - ignoring track");
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
} else if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
break;
|
|
}
|
|
videocontext = (GstMatroskaTrackVideoContext *) context;
|
|
g_ptr_array_index (demux->src, demux->num_streams - 1) = context;
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret =
|
|
gst_ebml_peek_id (ebml, &demux->level_up,
|
|
&id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
/* Should be one level up but some broken muxers write it here. */
|
|
case GST_MATROSKA_ID_TRACKDEFAULTDURATION:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackDefaultDuration 0");
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"TrackDefaultDuration: %" G_GUINT64_FORMAT, num);
|
|
context->default_duration = num;
|
|
break;
|
|
}
|
|
|
|
/* video framerate */
|
|
/* NOTE: This one is here only for backward compatibility.
|
|
* Use _TRACKDEFAULDURATION one level up. */
|
|
case GST_MATROSKA_ID_VIDEOFRAMERATE:{
|
|
gdouble num;
|
|
|
|
if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num <= 0.0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackVideoFPS %lf", num);
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackVideoFrameRate: %lf", num);
|
|
if (context->default_duration == 0)
|
|
context->default_duration =
|
|
gst_gdouble_to_guint64 ((gdouble) GST_SECOND * (1.0 / num));
|
|
videocontext->default_fps = num;
|
|
break;
|
|
}
|
|
|
|
/* width of the size to display the video at */
|
|
case GST_MATROSKA_ID_VIDEODISPLAYWIDTH:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackVideoDisplayWidth 0");
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"TrackVideoDisplayWidth: %" G_GUINT64_FORMAT, num);
|
|
videocontext->display_width = num;
|
|
break;
|
|
}
|
|
|
|
/* height of the size to display the video at */
|
|
case GST_MATROSKA_ID_VIDEODISPLAYHEIGHT:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackVideoDisplayHeight 0");
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"TrackVideoDisplayHeight: %" G_GUINT64_FORMAT, num);
|
|
videocontext->display_height = num;
|
|
break;
|
|
}
|
|
|
|
/* width of the video in the file */
|
|
case GST_MATROSKA_ID_VIDEOPIXELWIDTH:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackVideoPixelWidth 0");
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"TrackVideoPixelWidth: %" G_GUINT64_FORMAT, num);
|
|
videocontext->pixel_width = num;
|
|
break;
|
|
}
|
|
|
|
/* height of the video in the file */
|
|
case GST_MATROSKA_ID_VIDEOPIXELHEIGHT:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackVideoPixelHeight 0");
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"TrackVideoPixelHeight: %" G_GUINT64_FORMAT, num);
|
|
videocontext->pixel_height = num;
|
|
break;
|
|
}
|
|
|
|
/* whether the video is interlaced */
|
|
case GST_MATROSKA_ID_VIDEOFLAGINTERLACED:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num)
|
|
context->flags |= GST_MATROSKA_VIDEOTRACK_INTERLACED;
|
|
else
|
|
context->flags &= ~GST_MATROSKA_VIDEOTRACK_INTERLACED;
|
|
GST_DEBUG_OBJECT (demux, "TrackVideoInterlaced: %d",
|
|
(context->flags & GST_MATROSKA_VIDEOTRACK_INTERLACED) ? 1 :
|
|
0);
|
|
break;
|
|
}
|
|
|
|
/* aspect ratio behaviour */
|
|
case GST_MATROSKA_ID_VIDEOASPECTRATIOTYPE:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num != GST_MATROSKA_ASPECT_RATIO_MODE_FREE &&
|
|
num != GST_MATROSKA_ASPECT_RATIO_MODE_KEEP &&
|
|
num != GST_MATROSKA_ASPECT_RATIO_MODE_FIXED) {
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown TrackVideoAspectRatioType 0x%x", (guint) num);
|
|
break;
|
|
}
|
|
GST_DEBUG_OBJECT (demux,
|
|
"TrackVideoAspectRatioType: %" G_GUINT64_FORMAT, num);
|
|
videocontext->asr_mode = num;
|
|
break;
|
|
}
|
|
|
|
/* colourspace (only matters for raw video) fourcc */
|
|
case GST_MATROSKA_ID_VIDEOCOLOURSPACE:{
|
|
guint8 *data;
|
|
guint64 datalen;
|
|
|
|
if ((ret =
|
|
gst_ebml_read_binary (ebml, &id, &data,
|
|
&datalen)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (datalen != 4) {
|
|
g_free (data);
|
|
GST_WARNING_OBJECT (demux,
|
|
"Invalid TrackVideoColourSpace length %" G_GUINT64_FORMAT,
|
|
datalen);
|
|
break;
|
|
}
|
|
|
|
memcpy (&videocontext->fourcc, data, 4);
|
|
GST_DEBUG_OBJECT (demux,
|
|
"TrackVideoColourSpace: %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (videocontext->fourcc));
|
|
g_free (data);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown TrackVideo subelement 0x%x - ignoring", id);
|
|
/* fall through */
|
|
case GST_MATROSKA_ID_VIDEOSTEREOMODE:
|
|
case GST_MATROSKA_ID_VIDEODISPLAYUNIT:
|
|
case GST_MATROSKA_ID_VIDEOPIXELCROPBOTTOM:
|
|
case GST_MATROSKA_ID_VIDEOPIXELCROPTOP:
|
|
case GST_MATROSKA_ID_VIDEOPIXELCROPLEFT:
|
|
case GST_MATROSKA_ID_VIDEOPIXELCROPRIGHT:
|
|
case GST_MATROSKA_ID_VIDEOGAMMAVALUE:
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "TrackVideo", ret);
|
|
break;
|
|
}
|
|
|
|
/* tracktype specific stuff for audio */
|
|
case GST_MATROSKA_ID_TRACKAUDIO:{
|
|
GstMatroskaTrackAudioContext *audiocontext;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "TrackAudio");
|
|
|
|
if (!gst_matroska_track_init_audio_context (&context)) {
|
|
GST_WARNING_OBJECT (demux,
|
|
"TrackAudio element in non-audio track - ignoring track");
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
audiocontext = (GstMatroskaTrackAudioContext *) context;
|
|
g_ptr_array_index (demux->src, demux->num_streams - 1) = context;
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret =
|
|
gst_ebml_peek_id (ebml, &demux->level_up,
|
|
&id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
/* samplerate */
|
|
case GST_MATROSKA_ID_AUDIOSAMPLINGFREQ:{
|
|
gdouble num;
|
|
|
|
if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
|
|
if (num <= 0.0) {
|
|
GST_WARNING_OBJECT (demux,
|
|
"Invalid TrackAudioSamplingFrequency %lf", num);
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackAudioSamplingFrequency: %lf", num);
|
|
audiocontext->samplerate = num;
|
|
break;
|
|
}
|
|
|
|
/* bitdepth */
|
|
case GST_MATROSKA_ID_AUDIOBITDEPTH:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackAudioBitDepth 0");
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackAudioBitDepth: %" G_GUINT64_FORMAT,
|
|
num);
|
|
audiocontext->bitdepth = num;
|
|
break;
|
|
}
|
|
|
|
/* channels */
|
|
case GST_MATROSKA_ID_AUDIOCHANNELS:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackAudioChannels 0");
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackAudioChannels: %" G_GUINT64_FORMAT,
|
|
num);
|
|
audiocontext->channels = num;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown TrackAudio subelement 0x%x - ignoring", id);
|
|
/* fall through */
|
|
case GST_MATROSKA_ID_AUDIOCHANNELPOSITIONS:
|
|
case GST_MATROSKA_ID_AUDIOOUTPUTSAMPLINGFREQ:
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "TrackAudio", ret);
|
|
|
|
break;
|
|
}
|
|
|
|
/* codec identifier */
|
|
case GST_MATROSKA_ID_CODECID:{
|
|
gchar *text;
|
|
|
|
if ((ret = gst_ebml_read_ascii (ebml, &id, &text)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
GST_DEBUG_OBJECT (demux, "CodecID: %s", GST_STR_NULL (text));
|
|
context->codec_id = text;
|
|
break;
|
|
}
|
|
|
|
/* codec private data */
|
|
case GST_MATROSKA_ID_CODECPRIVATE:{
|
|
guint8 *data;
|
|
guint64 size;
|
|
|
|
if ((ret =
|
|
gst_ebml_read_binary (ebml, &id, &data, &size)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
context->codec_priv = data;
|
|
context->codec_priv_size = size;
|
|
|
|
GST_DEBUG_OBJECT (demux, "CodecPrivate of size %" G_GUINT64_FORMAT,
|
|
size);
|
|
break;
|
|
}
|
|
|
|
/* name of the codec */
|
|
case GST_MATROSKA_ID_CODECNAME:{
|
|
gchar *text;
|
|
|
|
if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
GST_DEBUG_OBJECT (demux, "CodecName: %s", GST_STR_NULL (text));
|
|
context->codec_name = text;
|
|
break;
|
|
}
|
|
|
|
/* name of this track */
|
|
case GST_MATROSKA_ID_TRACKNAME:{
|
|
gchar *text;
|
|
|
|
if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
context->name = text;
|
|
GST_DEBUG_OBJECT (demux, "TrackName: %s", GST_STR_NULL (text));
|
|
break;
|
|
}
|
|
|
|
/* language (matters for audio/subtitles, mostly) */
|
|
case GST_MATROSKA_ID_TRACKLANGUAGE:{
|
|
gchar *text;
|
|
|
|
if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
|
|
context->language = text;
|
|
|
|
/* fre-ca => fre */
|
|
if (strlen (context->language) >= 4 && context->language[3] == '-')
|
|
context->language[3] = '\0';
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackLanguage: %s",
|
|
GST_STR_NULL (context->language));
|
|
break;
|
|
}
|
|
|
|
/* whether this is actually used */
|
|
case GST_MATROSKA_ID_TRACKFLAGENABLED:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num)
|
|
context->flags |= GST_MATROSKA_TRACK_ENABLED;
|
|
else
|
|
context->flags &= ~GST_MATROSKA_TRACK_ENABLED;
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackEnabled: %d",
|
|
(context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0);
|
|
break;
|
|
}
|
|
|
|
/* whether it's the default for this track type */
|
|
case GST_MATROSKA_ID_TRACKFLAGDEFAULT:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num)
|
|
context->flags |= GST_MATROSKA_TRACK_DEFAULT;
|
|
else
|
|
context->flags &= ~GST_MATROSKA_TRACK_DEFAULT;
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackDefault: %d",
|
|
(context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0);
|
|
break;
|
|
}
|
|
|
|
/* whether the track must be used during playback */
|
|
case GST_MATROSKA_ID_TRACKFLAGFORCED:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num)
|
|
context->flags |= GST_MATROSKA_TRACK_FORCED;
|
|
else
|
|
context->flags &= ~GST_MATROSKA_TRACK_FORCED;
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackForced: %d",
|
|
(context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0);
|
|
break;
|
|
}
|
|
|
|
/* lacing (like MPEG, where blocks don't end/start on frame
|
|
* boundaries) */
|
|
case GST_MATROSKA_ID_TRACKFLAGLACING:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num)
|
|
context->flags |= GST_MATROSKA_TRACK_LACING;
|
|
else
|
|
context->flags &= ~GST_MATROSKA_TRACK_LACING;
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackLacing: %d",
|
|
(context->flags & GST_MATROSKA_TRACK_ENABLED) ? 1 : 0);
|
|
break;
|
|
}
|
|
|
|
/* default length (in time) of one data block in this track */
|
|
case GST_MATROSKA_ID_TRACKDEFAULTDURATION:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
|
|
if (num == 0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackDefaultDuration 0");
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackDefaultDuration: %" G_GUINT64_FORMAT,
|
|
num);
|
|
context->default_duration = num;
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_CONTENTENCODINGS:{
|
|
ret = gst_matroska_demux_read_track_encodings (demux, context);
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_TRACKTIMECODESCALE:{
|
|
gdouble num;
|
|
|
|
if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num <= 0.0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid TrackTimeCodeScale %lf", num);
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "TrackTimeCodeScale: %lf", num);
|
|
context->timecodescale = num;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING ("Unknown TrackEntry subelement 0x%x - ignoring", id);
|
|
/* pass-through */
|
|
|
|
/* we ignore these because they're nothing useful (i.e. crap)
|
|
* or simply not implemented yet. */
|
|
case GST_MATROSKA_ID_TRACKMINCACHE:
|
|
case GST_MATROSKA_ID_TRACKMAXCACHE:
|
|
case GST_MATROSKA_ID_MAXBLOCKADDITIONID:
|
|
case GST_MATROSKA_ID_TRACKATTACHMENTLINK:
|
|
case GST_MATROSKA_ID_TRACKOVERLAY:
|
|
case GST_MATROSKA_ID_TRACKTRANSLATE:
|
|
case GST_MATROSKA_ID_TRACKOFFSET:
|
|
case GST_MATROSKA_ID_CODECSETTINGS:
|
|
case GST_MATROSKA_ID_CODECINFOURL:
|
|
case GST_MATROSKA_ID_CODECDOWNLOADURL:
|
|
case GST_MATROSKA_ID_CODECDECODEALL:
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "TrackEntry", ret);
|
|
|
|
/* Decode codec private data if necessary */
|
|
if (context->encodings && context->encodings->len > 0 && context->codec_priv
|
|
&& context->codec_priv_size > 0) {
|
|
if (!gst_matroska_decode_data (context->encodings,
|
|
(guint8 **) & context->codec_priv, &context->codec_priv_size,
|
|
GST_MATROSKA_TRACK_ENCODING_SCOPE_CODEC_DATA, TRUE)) {
|
|
GST_WARNING_OBJECT (demux, "Decoding codec private data failed");
|
|
ret = GST_FLOW_ERROR;
|
|
}
|
|
}
|
|
|
|
if (context->type == 0 || context->codec_id == NULL || (ret != GST_FLOW_OK
|
|
&& ret != GST_FLOW_UNEXPECTED)) {
|
|
if (ret == GST_FLOW_OK || ret == GST_FLOW_UNEXPECTED)
|
|
GST_WARNING_OBJECT (ebml, "Unknown stream/codec in track entry header");
|
|
|
|
demux->num_streams--;
|
|
g_ptr_array_remove_index (demux->src, demux->num_streams);
|
|
g_assert (demux->src->len == demux->num_streams);
|
|
if (context) {
|
|
gst_matroska_track_free (context);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* now create the GStreamer connectivity */
|
|
switch (context->type) {
|
|
case GST_MATROSKA_TRACK_TYPE_VIDEO:{
|
|
GstMatroskaTrackVideoContext *videocontext =
|
|
(GstMatroskaTrackVideoContext *) context;
|
|
|
|
padname = g_strdup_printf ("video_%02d", demux->num_v_streams++);
|
|
templ = gst_element_class_get_pad_template (klass, "video_%02d");
|
|
caps = gst_matroska_demux_video_caps (videocontext,
|
|
context->codec_id,
|
|
(guint8 *) context->codec_priv, context->codec_priv_size, &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);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_TRACK_TYPE_AUDIO:{
|
|
GstMatroskaTrackAudioContext *audiocontext =
|
|
(GstMatroskaTrackAudioContext *) context;
|
|
|
|
padname = g_strdup_printf ("audio_%02d", demux->num_a_streams++);
|
|
templ = gst_element_class_get_pad_template (klass, "audio_%02d");
|
|
caps = gst_matroska_demux_audio_caps (audiocontext,
|
|
context->codec_id,
|
|
context->codec_priv, context->codec_priv_size, &codec);
|
|
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);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_TRACK_TYPE_SUBTITLE:{
|
|
GstMatroskaTrackSubtitleContext *subtitlecontext =
|
|
(GstMatroskaTrackSubtitleContext *) context;
|
|
|
|
padname = g_strdup_printf ("subtitle_%02d", demux->num_t_streams++);
|
|
templ = gst_element_class_get_pad_template (klass, "subtitle_%02d");
|
|
caps = gst_matroska_demux_subtitle_caps (subtitlecontext,
|
|
context->codec_id, context->codec_priv, context->codec_priv_size);
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_TRACK_TYPE_COMPLEX:
|
|
case GST_MATROSKA_TRACK_TYPE_LOGO:
|
|
case GST_MATROSKA_TRACK_TYPE_BUTTONS:
|
|
case GST_MATROSKA_TRACK_TYPE_CONTROL:
|
|
default:
|
|
/* we should already have quit by now */
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
if ((context->language == NULL || *context->language == '\0') &&
|
|
(context->type == GST_MATROSKA_TRACK_TYPE_AUDIO ||
|
|
context->type == GST_MATROSKA_TRACK_TYPE_SUBTITLE)) {
|
|
GST_LOG ("stream %d: language=eng (assuming default)", context->index);
|
|
context->language = g_strdup ("eng");
|
|
}
|
|
|
|
if (context->language) {
|
|
if (!list)
|
|
list = gst_tag_list_new ();
|
|
gst_tag_list_add (list, GST_TAG_MERGE_REPLACE,
|
|
GST_TAG_LANGUAGE_CODE, context->language, NULL);
|
|
}
|
|
|
|
if (caps == NULL) {
|
|
GST_WARNING_OBJECT (demux, "could not determine caps for stream with "
|
|
"codec_id='%s'", context->codec_id);
|
|
switch (context->type) {
|
|
case GST_MATROSKA_TRACK_TYPE_VIDEO:
|
|
caps = gst_caps_new_simple ("video/x-unknown", NULL);
|
|
break;
|
|
case GST_MATROSKA_TRACK_TYPE_AUDIO:
|
|
caps = gst_caps_new_simple ("audio/x-unknown", NULL);
|
|
break;
|
|
case GST_MATROSKA_TRACK_TYPE_SUBTITLE:
|
|
caps = gst_caps_new_simple ("application/x-subtitle-unknown", NULL);
|
|
break;
|
|
case GST_MATROSKA_TRACK_TYPE_COMPLEX:
|
|
default:
|
|
caps = gst_caps_new_simple ("application/x-matroska-unknown", NULL);
|
|
break;
|
|
}
|
|
gst_caps_set_simple (caps, "codec-id", G_TYPE_STRING, context->codec_id,
|
|
NULL);
|
|
}
|
|
|
|
/* the pad in here */
|
|
context->pad = gst_pad_new_from_template (templ, padname);
|
|
context->caps = caps;
|
|
|
|
gst_pad_set_event_function (context->pad,
|
|
GST_DEBUG_FUNCPTR (gst_matroska_demux_handle_src_event));
|
|
gst_pad_set_query_type_function (context->pad,
|
|
GST_DEBUG_FUNCPTR (gst_matroska_demux_get_src_query_types));
|
|
gst_pad_set_query_function (context->pad,
|
|
GST_DEBUG_FUNCPTR (gst_matroska_demux_handle_src_query));
|
|
|
|
GST_INFO_OBJECT (demux, "Adding pad '%s' with caps %" GST_PTR_FORMAT,
|
|
padname, caps);
|
|
|
|
context->pending_tags = list;
|
|
|
|
gst_pad_set_element_private (context->pad, context);
|
|
|
|
gst_pad_use_fixed_caps (context->pad);
|
|
gst_pad_set_caps (context->pad, context->caps);
|
|
gst_pad_set_active (context->pad, TRUE);
|
|
gst_element_add_pad (GST_ELEMENT (demux), context->pad);
|
|
|
|
g_free (padname);
|
|
|
|
/* tadaah! */
|
|
return ret;
|
|
}
|
|
|
|
static const GstQueryType *
|
|
gst_matroska_demux_get_src_query_types (GstPad * pad)
|
|
{
|
|
static const GstQueryType query_types[] = {
|
|
GST_QUERY_POSITION,
|
|
GST_QUERY_DURATION,
|
|
0
|
|
};
|
|
|
|
return query_types;
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_demux_query (GstMatroskaDemux * demux, GstPad * pad,
|
|
GstQuery * query)
|
|
{
|
|
gboolean res = FALSE;
|
|
GstMatroskaTrackContext *context = NULL;
|
|
|
|
if (pad) {
|
|
context = gst_pad_get_element_private (pad);
|
|
}
|
|
|
|
switch (GST_QUERY_TYPE (query)) {
|
|
case GST_QUERY_POSITION:
|
|
{
|
|
GstFormat format;
|
|
|
|
gst_query_parse_position (query, &format, NULL);
|
|
|
|
if (format == GST_FORMAT_TIME) {
|
|
GST_OBJECT_LOCK (demux);
|
|
if (context)
|
|
gst_query_set_position (query, GST_FORMAT_TIME, context->pos);
|
|
else
|
|
gst_query_set_position (query, GST_FORMAT_TIME,
|
|
demux->segment.last_stop);
|
|
GST_OBJECT_UNLOCK (demux);
|
|
} else if (format == GST_FORMAT_DEFAULT && context
|
|
&& context->default_duration) {
|
|
GST_OBJECT_LOCK (demux);
|
|
gst_query_set_position (query, GST_FORMAT_DEFAULT,
|
|
context->pos / context->default_duration);
|
|
GST_OBJECT_UNLOCK (demux);
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux,
|
|
"only position query in TIME and DEFAULT format is supported");
|
|
}
|
|
|
|
res = TRUE;
|
|
break;
|
|
}
|
|
case GST_QUERY_DURATION:
|
|
{
|
|
GstFormat format;
|
|
|
|
gst_query_parse_duration (query, &format, NULL);
|
|
|
|
if (format == GST_FORMAT_TIME) {
|
|
GST_OBJECT_LOCK (demux);
|
|
gst_query_set_duration (query, GST_FORMAT_TIME, demux->duration);
|
|
GST_OBJECT_UNLOCK (demux);
|
|
} else if (format == GST_FORMAT_DEFAULT && context
|
|
&& context->default_duration) {
|
|
GST_OBJECT_LOCK (demux);
|
|
gst_query_set_duration (query, GST_FORMAT_DEFAULT,
|
|
demux->duration / context->default_duration);
|
|
GST_OBJECT_UNLOCK (demux);
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux,
|
|
"only duration query in TIME and DEFAULT format is supported");
|
|
}
|
|
|
|
res = TRUE;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
res = gst_pad_query_default (pad, query);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_demux_element_query (GstElement * element, GstQuery * query)
|
|
{
|
|
return gst_matroska_demux_query (GST_MATROSKA_DEMUX (element), NULL, query);
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_demux_handle_src_query (GstPad * pad, GstQuery * query)
|
|
{
|
|
gboolean ret;
|
|
GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (gst_pad_get_parent (pad));
|
|
|
|
ret = gst_matroska_demux_query (demux, pad, query);
|
|
|
|
gst_object_unref (demux);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstMatroskaIndex *
|
|
gst_matroskademux_do_index_seek (GstMatroskaDemux * demux, guint track,
|
|
gint64 seek_pos, gint64 segment_stop, gboolean keyunit)
|
|
{
|
|
GstMatroskaIndex *entry = NULL;
|
|
guint n;
|
|
|
|
if (!demux->index || !demux->index->len)
|
|
return NULL;
|
|
|
|
/* find entry just before or at the requested position */
|
|
for (n = 0; n < demux->index->len; n++) {
|
|
GstMatroskaIndex *index;
|
|
|
|
index = &g_array_index (demux->index, GstMatroskaIndex, n);
|
|
|
|
if (index->time <= seek_pos && ((track && index->track == track) || !track))
|
|
entry = index;
|
|
else
|
|
break;
|
|
}
|
|
|
|
if (keyunit) {
|
|
/* find index entry closest to the requested position.
|
|
* n contains the index of the GstMatroskaIndex after
|
|
* entry
|
|
*/
|
|
if (entry && n < demux->index->len) {
|
|
GstMatroskaIndex *index;
|
|
GstClockTimeDiff d_this, d_entry;
|
|
|
|
do {
|
|
index = &g_array_index (demux->index, GstMatroskaIndex, n);
|
|
} while (n++ < demux->index->len && ((track && index->track == track)
|
|
|| !track));
|
|
|
|
d_entry = GST_CLOCK_DIFF (entry->time, seek_pos);
|
|
if (d_entry < 0)
|
|
d_entry = -d_entry;
|
|
|
|
d_this = GST_CLOCK_DIFF (index->time, seek_pos);
|
|
if (d_this < 0)
|
|
d_this = -d_this;
|
|
|
|
if (d_this < d_entry &&
|
|
(index->time < segment_stop || segment_stop == -1)) {
|
|
entry = index;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (entry == NULL && track)
|
|
entry = gst_matroskademux_do_index_seek (demux, 0,
|
|
seek_pos, segment_stop, keyunit);
|
|
|
|
return entry;
|
|
}
|
|
|
|
/* takes ownership of the passed event! */
|
|
static gboolean
|
|
gst_matroska_demux_send_event (GstMatroskaDemux * demux, GstEvent * event)
|
|
{
|
|
gboolean ret = TRUE;
|
|
gint i;
|
|
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
GST_DEBUG_OBJECT (demux, "Sending event of type %s to all source pads",
|
|
GST_EVENT_TYPE_NAME (event));
|
|
|
|
g_assert (demux->src->len == demux->num_streams);
|
|
for (i = 0; i < demux->src->len; i++) {
|
|
GstMatroskaTrackContext *stream;
|
|
|
|
stream = g_ptr_array_index (demux->src, i);
|
|
gst_event_ref (event);
|
|
gst_pad_push_event (stream->pad, event);
|
|
|
|
if (stream->pending_tags) {
|
|
GST_DEBUG_OBJECT (demux, "Sending pending_tags %p for pad %s:%s",
|
|
stream->pending_tags, GST_DEBUG_PAD_NAME (stream->pad));
|
|
gst_element_found_tags_for_pad (GST_ELEMENT (demux), stream->pad,
|
|
stream->pending_tags);
|
|
stream->pending_tags = NULL;
|
|
}
|
|
}
|
|
gst_event_unref (event);
|
|
return ret;
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_demux_element_send_event (GstElement * element, GstEvent * event)
|
|
{
|
|
GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
|
|
gboolean res;
|
|
|
|
g_return_val_if_fail (event != NULL, FALSE);
|
|
|
|
if (GST_EVENT_TYPE (event) == GST_EVENT_SEEK) {
|
|
res = gst_matroska_demux_handle_seek_event (demux, NULL, event);
|
|
} else {
|
|
GST_WARNING_OBJECT (demux, "Unhandled event of type %s",
|
|
GST_EVENT_TYPE_NAME (event));
|
|
res = FALSE;
|
|
}
|
|
gst_event_unref (event);
|
|
return res;
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_demux_handle_seek_event (GstMatroskaDemux * demux,
|
|
GstPad * pad, GstEvent * event)
|
|
{
|
|
GstMatroskaIndex *entry;
|
|
GstSeekFlags flags;
|
|
GstSeekType cur_type, stop_type;
|
|
GstFormat format;
|
|
gboolean flush, keyunit;
|
|
gdouble rate;
|
|
gint64 cur, stop;
|
|
gint64 segment_start, segment_stop;
|
|
gint i;
|
|
guint track = 0;
|
|
|
|
if (pad) {
|
|
GstMatroskaTrackContext *context = gst_pad_get_element_private (pad);
|
|
track = context->num;
|
|
}
|
|
|
|
gst_event_parse_seek (event, &rate, &format, &flags, &cur_type, &cur,
|
|
&stop_type, &stop);
|
|
|
|
/* we can only seek on time */
|
|
if (format != GST_FORMAT_TIME) {
|
|
GST_DEBUG_OBJECT (demux, "Can only seek on TIME");
|
|
return FALSE;
|
|
}
|
|
|
|
/* cannot yet do backwards playback */
|
|
if (rate <= 0.0) {
|
|
GST_DEBUG_OBJECT (demux, "Can only seek with positive rate");
|
|
return FALSE;
|
|
}
|
|
|
|
/* check sanity before we start flushing and all that */
|
|
if (cur_type == GST_SEEK_TYPE_SET) {
|
|
GST_OBJECT_LOCK (demux);
|
|
if (!gst_matroskademux_do_index_seek (demux, 0, cur, -1, FALSE)) {
|
|
GST_DEBUG_OBJECT (demux, "No matching seek entry in index");
|
|
GST_OBJECT_UNLOCK (demux);
|
|
return FALSE;
|
|
}
|
|
GST_DEBUG_OBJECT (demux, "Seek position looks sane");
|
|
GST_OBJECT_UNLOCK (demux);
|
|
}
|
|
|
|
flush = !!(flags & GST_SEEK_FLAG_FLUSH);
|
|
keyunit = !!(flags & GST_SEEK_FLAG_KEY_UNIT);
|
|
|
|
if (flush) {
|
|
GST_DEBUG_OBJECT (demux, "Starting flush");
|
|
gst_pad_push_event (demux->sinkpad, gst_event_new_flush_start ());
|
|
gst_matroska_demux_send_event (demux, gst_event_new_flush_start ());
|
|
} else {
|
|
gst_pad_pause_task (demux->sinkpad);
|
|
}
|
|
|
|
/* now grab the stream lock so that streaming cannot continue, for
|
|
* non flushing seeks when the element is in PAUSED this could block
|
|
* forever. */
|
|
GST_PAD_STREAM_LOCK (demux->sinkpad);
|
|
|
|
GST_OBJECT_LOCK (demux);
|
|
|
|
/* if nothing configured, play complete file */
|
|
if (!GST_CLOCK_TIME_IS_VALID (cur))
|
|
cur = 0;
|
|
/* prevent some calculations and comparisons involving INVALID */
|
|
segment_start = demux->segment.start;
|
|
segment_stop = demux->segment.stop;
|
|
if (!GST_CLOCK_TIME_IS_VALID (segment_start))
|
|
segment_start = 0;
|
|
|
|
if (cur_type == GST_SEEK_TYPE_SET)
|
|
segment_start = cur;
|
|
else if (cur_type == GST_SEEK_TYPE_CUR)
|
|
segment_start += cur;
|
|
|
|
if (stop_type == GST_SEEK_TYPE_SET) {
|
|
segment_stop = stop;
|
|
} else if (stop_type == GST_SEEK_TYPE_CUR) {
|
|
if (GST_CLOCK_TIME_IS_VALID (segment_stop)
|
|
&& GST_CLOCK_TIME_IS_VALID (stop))
|
|
segment_stop += stop;
|
|
else
|
|
segment_stop = -1;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"New segment positions: %" GST_TIME_FORMAT "-%" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (segment_start), GST_TIME_ARGS (segment_stop));
|
|
|
|
entry = gst_matroskademux_do_index_seek (demux, track, segment_start,
|
|
segment_stop, keyunit);
|
|
|
|
if (!entry) {
|
|
GST_DEBUG_OBJECT (demux, "No matching seek entry in index");
|
|
goto seek_error;
|
|
}
|
|
|
|
/* seek (relative to matroska segment) */
|
|
if (gst_ebml_read_seek (GST_EBML_READ (demux),
|
|
entry->pos + demux->ebml_segment_start) != GST_FLOW_OK) {
|
|
GST_DEBUG_OBJECT (demux, "Failed to seek to offset %" G_GUINT64_FORMAT,
|
|
entry->pos + demux->ebml_segment_start);
|
|
goto seek_error;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "Seeked to offset %" G_GUINT64_FORMAT, entry->pos +
|
|
demux->ebml_segment_start);
|
|
|
|
if (keyunit) {
|
|
GST_DEBUG_OBJECT (demux, "seek to key unit, adjusting segment start to %"
|
|
GST_TIME_FORMAT, GST_TIME_ARGS (entry->time));
|
|
segment_start = entry->time;
|
|
}
|
|
|
|
GST_OBJECT_UNLOCK (demux);
|
|
|
|
if (flush) {
|
|
GST_DEBUG_OBJECT (demux, "Stopping flush");
|
|
gst_pad_push_event (demux->sinkpad, gst_event_new_flush_stop ());
|
|
gst_matroska_demux_send_event (demux, gst_event_new_flush_stop ());
|
|
} else if (demux->segment_running) {
|
|
GST_DEBUG_OBJECT (demux, "Closing currently running segment");
|
|
|
|
GST_OBJECT_LOCK (demux);
|
|
if (demux->close_segment)
|
|
gst_event_unref (demux->close_segment);
|
|
|
|
demux->close_segment = gst_event_new_new_segment (TRUE,
|
|
demux->segment.rate, GST_FORMAT_TIME, demux->segment.start,
|
|
demux->segment.last_stop, demux->segment.last_stop);
|
|
GST_OBJECT_UNLOCK (demux);
|
|
}
|
|
|
|
GST_OBJECT_LOCK (demux);
|
|
GST_DEBUG_OBJECT (demux, "Committing new seek segment");
|
|
|
|
demux->segment.rate = rate;
|
|
demux->segment.flags = flags;
|
|
|
|
demux->segment.start = segment_start;
|
|
demux->segment.stop = segment_stop;
|
|
|
|
GST_OBJECT_UNLOCK (demux);
|
|
|
|
/* notify start of new segment */
|
|
if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
|
|
GstMessage *msg;
|
|
|
|
msg = gst_message_new_segment_start (GST_OBJECT (demux),
|
|
GST_FORMAT_TIME, demux->segment.start);
|
|
gst_element_post_message (GST_ELEMENT (demux), msg);
|
|
}
|
|
|
|
GST_OBJECT_LOCK (demux);
|
|
if (demux->new_segment)
|
|
gst_event_unref (demux->new_segment);
|
|
demux->new_segment = gst_event_new_new_segment (FALSE, rate,
|
|
GST_FORMAT_TIME, segment_start, segment_stop, segment_start);
|
|
GST_OBJECT_UNLOCK (demux);
|
|
|
|
/* update the time */
|
|
g_assert (demux->src->len == demux->num_streams);
|
|
for (i = 0; i < demux->src->len; i++) {
|
|
GstMatroskaTrackContext *context = g_ptr_array_index (demux->src, i);
|
|
context->pos = entry->time;
|
|
context->set_discont = TRUE;
|
|
context->last_flow = GST_FLOW_OK;
|
|
}
|
|
demux->segment.last_stop = entry->time;
|
|
|
|
/* restart our task since it might have been stopped when we did the
|
|
* flush. */
|
|
demux->segment_running = TRUE;
|
|
gst_pad_start_task (demux->sinkpad, (GstTaskFunction) gst_matroska_demux_loop,
|
|
demux->sinkpad);
|
|
|
|
/* streaming can continue now */
|
|
GST_PAD_STREAM_UNLOCK (demux->sinkpad);
|
|
|
|
return TRUE;
|
|
|
|
seek_error:
|
|
{
|
|
/* FIXME: shouldn't we either make it a real error or start the task
|
|
* function again so that things can continue from where they left off? */
|
|
GST_DEBUG_OBJECT (demux, "Got a seek error");
|
|
GST_OBJECT_UNLOCK (demux);
|
|
GST_PAD_STREAM_UNLOCK (demux->sinkpad);
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_demux_handle_src_event (GstPad * pad, GstEvent * event)
|
|
{
|
|
GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (gst_pad_get_parent (pad));
|
|
gboolean res = TRUE;
|
|
|
|
switch (GST_EVENT_TYPE (event)) {
|
|
case GST_EVENT_SEEK:
|
|
res = gst_matroska_demux_handle_seek_event (demux, pad, event);
|
|
gst_event_unref (event);
|
|
break;
|
|
|
|
/* events we don't need to handle */
|
|
case GST_EVENT_NAVIGATION:
|
|
case GST_EVENT_QOS:
|
|
gst_event_unref (event);
|
|
res = FALSE;
|
|
break;
|
|
|
|
case GST_EVENT_LATENCY:
|
|
default:
|
|
res = gst_pad_push_event (demux->sinkpad, event);
|
|
break;
|
|
}
|
|
|
|
gst_object_unref (demux);
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_init_stream (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
guint32 id;
|
|
gchar *doctype;
|
|
guint version;
|
|
GstFlowReturn ret;
|
|
|
|
GST_DEBUG_OBJECT (demux, "Init stream");
|
|
|
|
if ((ret = gst_ebml_read_header (ebml, &doctype, &version)) != GST_FLOW_OK)
|
|
return ret;
|
|
|
|
if (!doctype || strcmp (doctype, "matroska") != 0) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, WRONG_TYPE, (NULL),
|
|
("Input is not a matroska stream (doctype=%s)",
|
|
doctype ? doctype : "none"));
|
|
g_free (doctype);
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
g_free (doctype);
|
|
if (version > 2) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
|
|
("Demuxer version (2) is too old to read stream version %d", version));
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
/* find segment, must be the next element but search as long as
|
|
* we find it anyway */
|
|
while (TRUE) {
|
|
guint last_level;
|
|
|
|
if ((ret = gst_ebml_peek_id (ebml, &last_level, &id)) != GST_FLOW_OK) {
|
|
GST_DEBUG_OBJECT (demux, "gst_ebml_peek_id() failed!");
|
|
return ret;
|
|
}
|
|
|
|
if (id == GST_MATROSKA_ID_SEGMENT)
|
|
break;
|
|
|
|
/* oi! */
|
|
GST_WARNING_OBJECT (demux,
|
|
"Expected a Segment ID (0x%x), but received 0x%x!",
|
|
GST_MATROSKA_ID_SEGMENT, id);
|
|
|
|
if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
|
|
return ret;
|
|
}
|
|
|
|
/* we now have a EBML segment */
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
GST_DEBUG_OBJECT (demux, "gst_ebml_read_master() failed!");
|
|
return ret;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "Found Segment start at offset %" G_GUINT64_FORMAT,
|
|
ebml->offset);
|
|
/* seeks are from the beginning of the segment,
|
|
* after the segment ID/length */
|
|
demux->ebml_segment_start = ebml->offset;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_tracks (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
guint32 id;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "Tracks");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Tracks", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
/* one track within the "all-tracks" header */
|
|
case GST_MATROSKA_ID_TRACKENTRY:
|
|
ret = gst_matroska_demux_add_stream (demux);
|
|
break;
|
|
|
|
default:
|
|
GST_WARNING ("Unknown Track subelement 0x%x - ignoring", id);
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Tracks", ret);
|
|
|
|
demux->tracks_parsed = TRUE;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_index_cuetrack (GstMatroskaDemux * demux,
|
|
guint * nentries)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
guint32 id;
|
|
GstFlowReturn ret;
|
|
GstMatroskaIndex idx;
|
|
|
|
idx.pos = (guint64) - 1;
|
|
idx.track = 0;
|
|
idx.time = GST_CLOCK_TIME_NONE;
|
|
idx.block = 1;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "CueTrackPositions");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "CueTrackPositions", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
/* track number */
|
|
case GST_MATROSKA_ID_CUETRACK:
|
|
{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
idx.track = 0;
|
|
GST_WARNING_OBJECT (demux, "Invalid CueTrack 0");
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "CueTrack: %" G_GUINT64_FORMAT, num);
|
|
idx.track = num;
|
|
break;
|
|
}
|
|
|
|
/* position in file */
|
|
case GST_MATROSKA_ID_CUECLUSTERPOSITION:
|
|
{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num > G_MAXINT64) {
|
|
GST_WARNING_OBJECT (demux, "CueClusterPosition %" G_GUINT64_FORMAT
|
|
" too large", num);
|
|
break;
|
|
}
|
|
|
|
idx.pos = num;
|
|
break;
|
|
}
|
|
|
|
/* number of block in the cluster */
|
|
case GST_MATROSKA_ID_CUEBLOCKNUMBER:
|
|
{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num == 0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid CueBlockNumber 0");
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "CueBlockNumber: %" G_GUINT64_FORMAT, num);
|
|
idx.block = num;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING ("Unknown CueTrackPositions subelement 0x%x - ignoring",
|
|
id);
|
|
/* fall-through */
|
|
|
|
case GST_MATROSKA_ID_CUECODECSTATE:
|
|
case GST_MATROSKA_ID_CUEREFERENCE:
|
|
if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
|
|
break;
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "CueTrackPositions", ret);
|
|
|
|
if ((ret == GST_FLOW_OK || ret == GST_FLOW_UNEXPECTED)
|
|
&& idx.pos != (guint64) - 1 && idx.track > 0) {
|
|
g_array_append_val (demux->index, idx);
|
|
(*nentries)++;
|
|
} else if (ret == GST_FLOW_OK || ret == GST_FLOW_UNEXPECTED) {
|
|
GST_DEBUG_OBJECT (demux, "CueTrackPositions without valid content");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_index_pointentry (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
guint32 id;
|
|
GstFlowReturn ret;
|
|
GstClockTime time = GST_CLOCK_TIME_NONE;
|
|
guint nentries = 0;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "CuePoint");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "CuePoint", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
/* one single index entry ('point') */
|
|
case GST_MATROSKA_ID_CUETIME:
|
|
{
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &time)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
GST_DEBUG_OBJECT (demux, "CueTime: %" G_GUINT64_FORMAT, time);
|
|
time = time * demux->time_scale;
|
|
break;
|
|
}
|
|
|
|
/* position in the file + track to which it belongs */
|
|
case GST_MATROSKA_ID_CUETRACKPOSITIONS:
|
|
{
|
|
if ((ret =
|
|
gst_matroska_demux_parse_index_cuetrack (demux,
|
|
&nentries)) != GST_FLOW_OK)
|
|
break;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown CuePoint subelement 0x%x - ignoring", id);
|
|
if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
|
|
break;
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "CuePoint", ret);
|
|
|
|
if (nentries > 0) {
|
|
if (time == GST_CLOCK_TIME_NONE) {
|
|
GST_WARNING_OBJECT (demux, "CuePoint without valid time");
|
|
g_array_remove_range (demux->index, demux->index->len - nentries,
|
|
nentries);
|
|
} else {
|
|
gint i;
|
|
|
|
for (i = demux->index->len - nentries; i < demux->index->len; i++) {
|
|
GstMatroskaIndex *idx =
|
|
&g_array_index (demux->index, GstMatroskaIndex, i);
|
|
|
|
idx->time = time;
|
|
GST_DEBUG_OBJECT (demux, "Index entry: pos=%" G_GUINT64_FORMAT
|
|
", time=%" GST_TIME_FORMAT ", track=%u, block=%u", idx->pos,
|
|
GST_TIME_ARGS (idx->time), (guint) idx->track, (guint) idx->block);
|
|
}
|
|
}
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "Empty CuePoint");
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static gint
|
|
gst_matroska_index_compare (GstMatroskaIndex * i1, GstMatroskaIndex * i2)
|
|
{
|
|
if (i1->time < i2->time)
|
|
return -1;
|
|
else if (i1->time > i2->time)
|
|
return 1;
|
|
else if (i1->block < i2->block)
|
|
return -1;
|
|
else if (i1->block > i2->block)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_index (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
guint32 id;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
if (demux->index)
|
|
g_array_free (demux->index, TRUE);
|
|
demux->index =
|
|
g_array_sized_new (FALSE, FALSE, sizeof (GstMatroskaIndex), 128);
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "Cues");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Cues", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
/* one single index entry ('point') */
|
|
case GST_MATROSKA_ID_POINTENTRY:
|
|
ret = gst_matroska_demux_parse_index_pointentry (demux);
|
|
break;
|
|
|
|
default:
|
|
GST_WARNING ("Unknown Cues subelement 0x%x - ignoring", id);
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Cues", ret);
|
|
|
|
/* Sort index by time, smallest time first, for easier searching */
|
|
g_array_sort (demux->index, (GCompareFunc) gst_matroska_index_compare);
|
|
|
|
demux->index_parsed = TRUE;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_info (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
guint32 id;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "SegmentInfo");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "SegmentInfo", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
/* cluster timecode */
|
|
case GST_MATROSKA_ID_TIMECODESCALE:{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
|
|
GST_DEBUG_OBJECT (demux, "TimeCodeScale: %" G_GUINT64_FORMAT, num);
|
|
demux->time_scale = num;
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_DURATION:{
|
|
gdouble num;
|
|
GstClockTime dur;
|
|
|
|
if ((ret = gst_ebml_read_float (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (num <= 0.0) {
|
|
GST_WARNING_OBJECT (demux, "Invalid duration %lf", num);
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "Duration: %lf", num);
|
|
|
|
dur = gst_gdouble_to_guint64 (num *
|
|
gst_guint64_to_gdouble (demux->time_scale));
|
|
if (GST_CLOCK_TIME_IS_VALID (dur) && dur <= G_MAXINT64)
|
|
demux->duration = dur;
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_WRITINGAPP:{
|
|
gchar *text;
|
|
|
|
if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
GST_DEBUG_OBJECT (demux, "WritingApp: %s", GST_STR_NULL (text));
|
|
demux->writing_app = text;
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_MUXINGAPP:{
|
|
gchar *text;
|
|
|
|
if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
GST_DEBUG_OBJECT (demux, "MuxingApp: %s", GST_STR_NULL (text));
|
|
demux->muxing_app = text;
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_DATEUTC:{
|
|
gint64 time;
|
|
|
|
if ((ret = gst_ebml_read_date (ebml, &id, &time)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
GST_DEBUG_OBJECT (demux, "DateUTC: %" G_GINT64_FORMAT, time);
|
|
demux->created = time;
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_TITLE:{
|
|
gchar *text;
|
|
GstTagList *taglist;
|
|
|
|
if ((ret = gst_ebml_read_utf8 (ebml, &id, &text)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
GST_DEBUG_OBJECT (demux, "Title: %s", GST_STR_NULL (text));
|
|
taglist = gst_tag_list_new ();
|
|
gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, GST_TAG_TITLE, text,
|
|
NULL);
|
|
gst_element_found_tags (GST_ELEMENT (ebml), taglist);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown SegmentInfo subelement 0x%x - ignoring", id);
|
|
|
|
/* fall through */
|
|
case GST_MATROSKA_ID_SEGMENTUID:
|
|
case GST_MATROSKA_ID_SEGMENTFILENAME:
|
|
case GST_MATROSKA_ID_PREVUID:
|
|
case GST_MATROSKA_ID_PREVFILENAME:
|
|
case GST_MATROSKA_ID_NEXTUID:
|
|
case GST_MATROSKA_ID_NEXTFILENAME:
|
|
case GST_MATROSKA_ID_SEGMENTFAMILY:
|
|
case GST_MATROSKA_ID_CHAPTERTRANSLATE:
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "SegmentInfo", ret);
|
|
|
|
demux->segmentinfo_parsed = TRUE;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_metadata_id_simple_tag (GstMatroskaDemux * demux,
|
|
GstTagList ** p_taglist)
|
|
{
|
|
/* FIXME: check if there are more useful mappings */
|
|
struct
|
|
{
|
|
gchar *matroska_tagname;
|
|
gchar *gstreamer_tagname;
|
|
}
|
|
tag_conv[] = {
|
|
{
|
|
GST_MATROSKA_TAG_ID_TITLE, GST_TAG_TITLE}, {
|
|
GST_MATROSKA_TAG_ID_AUTHOR, GST_TAG_ARTIST}, {
|
|
GST_MATROSKA_TAG_ID_ALBUM, GST_TAG_ALBUM}, {
|
|
GST_MATROSKA_TAG_ID_COMMENTS, GST_TAG_COMMENT}, {
|
|
GST_MATROSKA_TAG_ID_BITSPS, GST_TAG_BITRATE}, {
|
|
GST_MATROSKA_TAG_ID_BPS, GST_TAG_BITRATE}, {
|
|
GST_MATROSKA_TAG_ID_ENCODER, GST_TAG_ENCODER}, {
|
|
GST_MATROSKA_TAG_ID_DATE, GST_TAG_DATE}, {
|
|
GST_MATROSKA_TAG_ID_ISRC, GST_TAG_ISRC}, {
|
|
GST_MATROSKA_TAG_ID_COPYRIGHT, GST_TAG_COPYRIGHT}, {
|
|
GST_MATROSKA_TAG_ID_BPM, GST_TAG_BEATS_PER_MINUTE}, {
|
|
GST_MATROSKA_TAG_ID_TERMS_OF_USE, GST_TAG_LICENSE}, {
|
|
GST_MATROSKA_TAG_ID_COMPOSER, GST_TAG_COMPOSER}, {
|
|
GST_MATROSKA_TAG_ID_LEAD_PERFORMER, GST_TAG_PERFORMER}, {
|
|
GST_MATROSKA_TAG_ID_GENRE, GST_TAG_GENRE}
|
|
};
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret;
|
|
guint32 id;
|
|
gchar *value = NULL;
|
|
gchar *tag = NULL;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "SimpleTag");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "SimpleTag", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
/* read all sub-entries */
|
|
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
case GST_MATROSKA_ID_TAGNAME:
|
|
g_free (tag);
|
|
tag = NULL;
|
|
ret = gst_ebml_read_ascii (ebml, &id, &tag);
|
|
GST_DEBUG_OBJECT (demux, "TagName: %s", GST_STR_NULL (tag));
|
|
break;
|
|
|
|
case GST_MATROSKA_ID_TAGSTRING:
|
|
g_free (value);
|
|
value = NULL;
|
|
ret = gst_ebml_read_utf8 (ebml, &id, &value);
|
|
GST_DEBUG_OBJECT (demux, "TagString: %s", GST_STR_NULL (value));
|
|
break;
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown SimpleTag subelement 0x%x - ignoring", id);
|
|
/* fall-through */
|
|
|
|
case GST_MATROSKA_ID_TAGLANGUAGE:
|
|
case GST_MATROSKA_ID_TAGDEFAULT:
|
|
case GST_MATROSKA_ID_TAGBINARY:
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "SimpleTag", ret);
|
|
|
|
if (tag && value) {
|
|
guint i;
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (tag_conv); i++) {
|
|
const gchar *tagname_gst = tag_conv[i].gstreamer_tagname;
|
|
|
|
const gchar *tagname_mkv = tag_conv[i].matroska_tagname;
|
|
|
|
if (strcmp (tagname_mkv, tag) == 0) {
|
|
GValue dest = { 0, };
|
|
GType dest_type = gst_tag_get_type (tagname_gst);
|
|
|
|
g_value_init (&dest, dest_type);
|
|
if (gst_value_deserialize (&dest, value)) {
|
|
gst_tag_list_add_values (*p_taglist, GST_TAG_MERGE_APPEND,
|
|
tagname_gst, &dest, NULL);
|
|
} else {
|
|
GST_WARNING_OBJECT (demux, "Can't transform tag '%s' with "
|
|
"value '%s' to target type '%s'", tag, value,
|
|
g_type_name (dest_type));
|
|
}
|
|
g_value_unset (&dest);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
g_free (tag);
|
|
g_free (value);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_metadata_id_tag (GstMatroskaDemux * demux,
|
|
GstTagList ** p_taglist)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
guint32 id;
|
|
GstFlowReturn ret;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "Tag");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Tag", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
/* read all sub-entries */
|
|
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
case GST_MATROSKA_ID_SIMPLETAG:
|
|
ret =
|
|
gst_matroska_demux_parse_metadata_id_simple_tag (demux, p_taglist);
|
|
break;
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux, "Unknown Tag subelement 0x%x - ignoring",
|
|
id);
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Tag", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_metadata (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstTagList *taglist;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
guint32 id;
|
|
GList *l;
|
|
GstEbmlLevel *curlevel;
|
|
|
|
/* Can't be NULL at this point */
|
|
g_assert (ebml->level != NULL);
|
|
curlevel = ebml->level->data;
|
|
|
|
/* Make sure we don't parse a tags element twice and
|
|
* post it's tags twice */
|
|
for (l = demux->tags_parsed; l; l = l->next) {
|
|
GstEbmlLevel *level = l->data;
|
|
|
|
if (ebml->level)
|
|
curlevel = ebml->level->data;
|
|
else
|
|
break;
|
|
|
|
if (level->start == curlevel->start && level->length == curlevel->length) {
|
|
GST_DEBUG_OBJECT (demux, "Skipping already parsed Tags at offset %"
|
|
G_GUINT64_FORMAT, ebml->offset);
|
|
ret = gst_ebml_read_skip (ebml);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "Tags");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Tags", ret);
|
|
return ret;
|
|
}
|
|
|
|
taglist = gst_tag_list_new ();
|
|
|
|
/* TODO: g_slice_dup() if we depend on GLib 2.14 */
|
|
curlevel = g_slice_new (GstEbmlLevel);
|
|
memcpy (curlevel, ebml->level->data, sizeof (GstEbmlLevel));
|
|
demux->tags_parsed = g_list_prepend (demux->tags_parsed, curlevel);
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
case GST_MATROSKA_ID_TAG:
|
|
ret = gst_matroska_demux_parse_metadata_id_tag (demux, &taglist);
|
|
break;
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux, "Unknown Tags subelement 0x%x - ignoring",
|
|
id);
|
|
/* FIXME: Use to limit the tags to specific pads */
|
|
case GST_MATROSKA_ID_TARGETS:
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Tags", ret);
|
|
|
|
if (gst_structure_n_fields (GST_STRUCTURE (taglist)) > 0) {
|
|
gst_element_found_tags (GST_ELEMENT (ebml), taglist);
|
|
} else {
|
|
gst_tag_list_free (taglist);
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_attached_file (GstMatroskaDemux * demux,
|
|
GstTagList * taglist)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
guint32 id;
|
|
GstFlowReturn ret;
|
|
gchar *description = NULL;
|
|
gchar *filename = NULL;
|
|
gchar *mimetype = NULL;
|
|
guint8 *data = NULL;
|
|
guint64 datalen = 0;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "AttachedFile");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "AttachedFile", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
/* read all sub-entries */
|
|
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
case GST_MATROSKA_ID_FILEDESCRIPTION:
|
|
if (description) {
|
|
GST_WARNING_OBJECT (demux, "FileDescription can only appear once");
|
|
break;
|
|
}
|
|
|
|
ret = gst_ebml_read_utf8 (ebml, &id, &description);
|
|
GST_DEBUG_OBJECT (demux, "FileDescription: %s",
|
|
GST_STR_NULL (description));
|
|
break;
|
|
case GST_MATROSKA_ID_FILENAME:
|
|
if (filename) {
|
|
GST_WARNING_OBJECT (demux, "FileName can only appear once");
|
|
break;
|
|
}
|
|
|
|
ret = gst_ebml_read_utf8 (ebml, &id, &filename);
|
|
|
|
GST_DEBUG_OBJECT (demux, "FileName: %s", GST_STR_NULL (filename));
|
|
break;
|
|
case GST_MATROSKA_ID_FILEMIMETYPE:
|
|
if (mimetype) {
|
|
GST_WARNING_OBJECT (demux, "FileMimeType can only appear once");
|
|
break;
|
|
}
|
|
|
|
ret = gst_ebml_read_ascii (ebml, &id, &mimetype);
|
|
GST_DEBUG_OBJECT (demux, "FileMimeType: %s", GST_STR_NULL (mimetype));
|
|
break;
|
|
case GST_MATROSKA_ID_FILEDATA:
|
|
if (data) {
|
|
GST_WARNING_OBJECT (demux, "FileData can only appear once");
|
|
break;
|
|
}
|
|
|
|
ret = gst_ebml_read_binary (ebml, &id, &data, &datalen);
|
|
GST_DEBUG_OBJECT (demux, "FileData of size %" G_GUINT64_FORMAT,
|
|
datalen);
|
|
break;
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown AttachedFile subelement 0x%x - ignoring", id);
|
|
/* fall through */
|
|
case GST_MATROSKA_ID_FILEUID:
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "AttachedFile", ret);
|
|
|
|
if (filename && mimetype && data && datalen > 0) {
|
|
GstTagImageType image_type = GST_TAG_IMAGE_TYPE_NONE;
|
|
GstBuffer *tagbuffer = NULL;
|
|
GstCaps *caps;
|
|
gchar *filename_lc = g_utf8_strdown (filename, -1);
|
|
|
|
GST_DEBUG_OBJECT (demux, "Creating tag for attachment with filename '%s', "
|
|
"mimetype '%s', description '%s', size %" G_GUINT64_FORMAT, filename,
|
|
mimetype, GST_STR_NULL (description), datalen);
|
|
|
|
/* TODO: better heuristics for different image types */
|
|
if (strstr (filename_lc, "cover")) {
|
|
if (strstr (filename_lc, "back"))
|
|
image_type = GST_TAG_IMAGE_TYPE_BACK_COVER;
|
|
else
|
|
image_type = GST_TAG_IMAGE_TYPE_FRONT_COVER;
|
|
} else if (g_str_has_prefix (mimetype, "image/") ||
|
|
g_str_has_suffix (filename_lc, "png") ||
|
|
g_str_has_suffix (filename_lc, "jpg") ||
|
|
g_str_has_suffix (filename_lc, "jpeg") ||
|
|
g_str_has_suffix (filename_lc, "gif") ||
|
|
g_str_has_suffix (filename_lc, "bmp")) {
|
|
image_type = GST_TAG_IMAGE_TYPE_UNDEFINED;
|
|
}
|
|
g_free (filename_lc);
|
|
|
|
/* First try to create an image tag buffer from this */
|
|
if (image_type != GST_TAG_IMAGE_TYPE_NONE) {
|
|
tagbuffer =
|
|
gst_tag_image_data_to_image_buffer (data, datalen, image_type);
|
|
|
|
if (!tagbuffer)
|
|
image_type = GST_TAG_IMAGE_TYPE_NONE;
|
|
}
|
|
|
|
/* if this failed create an attachment buffer */
|
|
if (!tagbuffer) {
|
|
tagbuffer = gst_buffer_new_and_alloc (datalen);
|
|
|
|
memcpy (GST_BUFFER_DATA (tagbuffer), data, datalen);
|
|
GST_BUFFER_SIZE (tagbuffer) = datalen;
|
|
|
|
caps = gst_type_find_helper_for_buffer (NULL, tagbuffer, NULL);
|
|
if (caps == NULL)
|
|
caps = gst_caps_new_simple (mimetype, NULL);
|
|
gst_buffer_set_caps (tagbuffer, caps);
|
|
gst_caps_unref (caps);
|
|
}
|
|
|
|
/* Set filename and description on the caps */
|
|
caps = GST_BUFFER_CAPS (tagbuffer);
|
|
gst_caps_set_simple (caps, "filename", G_TYPE_STRING, filename, NULL);
|
|
if (description)
|
|
gst_caps_set_simple (caps, "description", G_TYPE_STRING, description,
|
|
NULL);
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"Created attachment buffer with caps: %" GST_PTR_FORMAT, caps);
|
|
|
|
/* and append to the tag list */
|
|
if (image_type != GST_TAG_IMAGE_TYPE_NONE)
|
|
gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, GST_TAG_IMAGE, tagbuffer,
|
|
NULL);
|
|
else
|
|
gst_tag_list_add (taglist, GST_TAG_MERGE_APPEND, GST_TAG_ATTACHMENT,
|
|
tagbuffer, NULL);
|
|
}
|
|
|
|
g_free (filename);
|
|
g_free (mimetype);
|
|
g_free (data);
|
|
g_free (description);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_attachments (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
guint32 id;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
GstTagList *taglist;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "Attachments");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Attachments", ret);
|
|
return ret;
|
|
}
|
|
|
|
taglist = gst_tag_list_new ();
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
case GST_MATROSKA_ID_ATTACHEDFILE:
|
|
ret = gst_matroska_demux_parse_attached_file (demux, taglist);
|
|
break;
|
|
|
|
default:
|
|
GST_WARNING ("Unknown Attachments subelement 0x%x - ignoring", id);
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Attachments", ret);
|
|
|
|
if (gst_structure_n_fields (GST_STRUCTURE (taglist)) > 0) {
|
|
GST_DEBUG_OBJECT (demux, "Posting attachment tags");
|
|
gst_element_found_tags (GST_ELEMENT (ebml), taglist);
|
|
} else {
|
|
GST_DEBUG_OBJECT (demux, "No valid attachments found");
|
|
gst_tag_list_free (taglist);
|
|
}
|
|
|
|
demux->attachments_parsed = TRUE;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_chapters (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
guint32 id;
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
GST_WARNING_OBJECT (demux, "Parsing of chapters not implemented yet");
|
|
|
|
/* TODO: implement parsing of chapters */
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "Chapters");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Chapters", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
default:
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Chapters", ret);
|
|
return ret;
|
|
}
|
|
|
|
/*
|
|
* Read signed/unsigned "EBML" numbers.
|
|
* Return: number of bytes processed.
|
|
*/
|
|
|
|
static gint
|
|
gst_matroska_ebmlnum_uint (guint8 * data, guint size, guint64 * num)
|
|
{
|
|
gint len_mask = 0x80, read = 1, n = 1, num_ffs = 0;
|
|
guint64 total;
|
|
|
|
if (size <= 0) {
|
|
return -1;
|
|
}
|
|
|
|
total = data[0];
|
|
while (read <= 8 && !(total & len_mask)) {
|
|
read++;
|
|
len_mask >>= 1;
|
|
}
|
|
if (read > 8)
|
|
return -1;
|
|
|
|
if ((total &= (len_mask - 1)) == len_mask - 1)
|
|
num_ffs++;
|
|
if (size < read)
|
|
return -1;
|
|
while (n < read) {
|
|
if (data[n] == 0xff)
|
|
num_ffs++;
|
|
total = (total << 8) | data[n];
|
|
n++;
|
|
}
|
|
|
|
if (read == num_ffs && total != 0)
|
|
*num = G_MAXUINT64;
|
|
else
|
|
*num = total;
|
|
|
|
return read;
|
|
}
|
|
|
|
static gint
|
|
gst_matroska_ebmlnum_sint (guint8 * data, guint size, gint64 * num)
|
|
{
|
|
guint64 unum;
|
|
gint res;
|
|
|
|
/* read as unsigned number first */
|
|
if ((res = gst_matroska_ebmlnum_uint (data, size, &unum)) < 0)
|
|
return -1;
|
|
|
|
/* make signed */
|
|
if (unum == G_MAXUINT64)
|
|
*num = G_MAXINT64;
|
|
else
|
|
*num = unum - ((1 << ((7 * res) - 1)) - 1);
|
|
|
|
return res;
|
|
}
|
|
|
|
/*
|
|
* Mostly used for subtitles. We add void filler data for each
|
|
* lagging stream to make sure we don't deadlock.
|
|
*/
|
|
|
|
static void
|
|
gst_matroska_demux_sync_streams (GstMatroskaDemux * demux)
|
|
{
|
|
gint stream_nr;
|
|
|
|
GST_LOG_OBJECT (demux, "Sync to %" GST_TIME_FORMAT,
|
|
GST_TIME_ARGS (demux->segment.last_stop));
|
|
|
|
g_assert (demux->num_streams == demux->src->len);
|
|
for (stream_nr = 0; stream_nr < demux->src->len; stream_nr++) {
|
|
GstMatroskaTrackContext *context;
|
|
|
|
context = g_ptr_array_index (demux->src, stream_nr);
|
|
|
|
GST_LOG_OBJECT (demux,
|
|
"Checking for resync on stream %d (%" GST_TIME_FORMAT ")", stream_nr,
|
|
GST_TIME_ARGS (context->pos));
|
|
|
|
/* does it lag? 0.5 seconds is a random treshold... */
|
|
if (context->pos + (GST_SECOND / 2) < demux->segment.last_stop) {
|
|
GST_DEBUG_OBJECT (demux,
|
|
"Synchronizing stream %d with others by advancing time " "from %"
|
|
GST_TIME_FORMAT " to %" GST_TIME_FORMAT, stream_nr,
|
|
GST_TIME_ARGS (context->pos),
|
|
GST_TIME_ARGS (demux->segment.last_stop));
|
|
|
|
context->pos = demux->segment.last_stop;
|
|
|
|
/* advance stream time */
|
|
gst_pad_push_event (context->pad,
|
|
gst_event_new_new_segment (TRUE, demux->segment.rate,
|
|
GST_FORMAT_TIME, demux->segment.last_stop, -1,
|
|
demux->segment.last_stop));
|
|
}
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_push_hdr_buf (GstMatroskaDemux * demux,
|
|
GstMatroskaTrackContext * stream, guint8 * data, guint len)
|
|
{
|
|
GstFlowReturn ret, cret;
|
|
GstBuffer *header_buf = NULL;
|
|
|
|
ret = gst_pad_alloc_buffer_and_set_caps (stream->pad,
|
|
GST_BUFFER_OFFSET_NONE, len, stream->caps, &header_buf);
|
|
|
|
/* we combine but don't use the combined value to check if we have a buffer
|
|
* or not. The combined value is what we return. */
|
|
cret = gst_matroska_demux_combine_flows (demux, stream, ret);
|
|
if (ret != GST_FLOW_OK)
|
|
goto no_buffer;
|
|
|
|
memcpy (GST_BUFFER_DATA (header_buf), data, len);
|
|
|
|
if (stream->set_discont) {
|
|
GST_BUFFER_FLAG_SET (header_buf, GST_BUFFER_FLAG_DISCONT);
|
|
stream->set_discont = FALSE;
|
|
}
|
|
|
|
ret = gst_pad_push (stream->pad, header_buf);
|
|
|
|
/* combine flows */
|
|
cret = gst_matroska_demux_combine_flows (demux, stream, ret);
|
|
|
|
return cret;
|
|
|
|
/* ERRORS */
|
|
no_buffer:
|
|
{
|
|
GST_DEBUG_OBJECT (demux, "could not alloc buffer: %s, combined %s",
|
|
gst_flow_get_name (ret), gst_flow_get_name (cret));
|
|
return cret;
|
|
}
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_push_flac_codec_priv_data (GstMatroskaDemux * demux,
|
|
GstMatroskaTrackContext * stream)
|
|
{
|
|
GstFlowReturn ret;
|
|
guint8 *pdata;
|
|
guint off, len;
|
|
|
|
GST_LOG_OBJECT (demux, "priv data size = %u", stream->codec_priv_size);
|
|
|
|
pdata = (guint8 *) stream->codec_priv;
|
|
|
|
/* need at least 'fLaC' marker + STREAMINFO metadata block */
|
|
if (stream->codec_priv_size < ((4) + (4 + 34))) {
|
|
GST_WARNING_OBJECT (demux, "not enough codec priv data for flac headers");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
if (memcmp (pdata, "fLaC", 4) != 0) {
|
|
GST_WARNING_OBJECT (demux, "no flac marker at start of stream headers");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
ret = gst_matroska_demux_push_hdr_buf (demux, stream, pdata, 4);
|
|
if (ret != GST_FLOW_OK)
|
|
return ret;
|
|
|
|
off = 4; /* skip fLaC marker */
|
|
while (off < stream->codec_priv_size) {
|
|
len = GST_READ_UINT8 (pdata + off + 1) << 16;
|
|
len |= GST_READ_UINT8 (pdata + off + 2) << 8;
|
|
len |= GST_READ_UINT8 (pdata + off + 3);
|
|
|
|
GST_DEBUG_OBJECT (demux, "header packet: len=%u bytes, flags=0x%02x",
|
|
len, (guint) pdata[off]);
|
|
|
|
ret = gst_matroska_demux_push_hdr_buf (demux, stream, pdata + off, len);
|
|
if (ret != GST_FLOW_OK)
|
|
return ret;
|
|
|
|
off += 4 + len;
|
|
}
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_push_speex_codec_priv_data (GstMatroskaDemux * demux,
|
|
GstMatroskaTrackContext * stream)
|
|
{
|
|
GstFlowReturn ret;
|
|
guint8 *pdata;
|
|
|
|
GST_LOG_OBJECT (demux, "priv data size = %u", stream->codec_priv_size);
|
|
|
|
pdata = (guint8 *) stream->codec_priv;
|
|
|
|
/* need at least 'fLaC' marker + STREAMINFO metadata block */
|
|
if (stream->codec_priv_size < 80) {
|
|
GST_WARNING_OBJECT (demux, "not enough codec priv data for speex headers");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
if (memcmp (pdata, "Speex ", 8) != 0) {
|
|
GST_WARNING_OBJECT (demux, "no Speex marker at start of stream headers");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
ret = gst_matroska_demux_push_hdr_buf (demux, stream, pdata, 80);
|
|
if (ret != GST_FLOW_OK)
|
|
return ret;
|
|
|
|
if (stream->codec_priv_size == 80)
|
|
return ret;
|
|
else
|
|
return gst_matroska_demux_push_hdr_buf (demux, stream, pdata + 80,
|
|
stream->codec_priv_size - 80);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_push_xiph_codec_priv_data (GstMatroskaDemux * demux,
|
|
GstMatroskaTrackContext * stream)
|
|
{
|
|
GstFlowReturn ret;
|
|
guint8 *p = (guint8 *) stream->codec_priv;
|
|
gint i, offset, length, num_packets;
|
|
|
|
/* start of the stream and vorbis audio or theora video, need to
|
|
* send the codec_priv data as first three packets */
|
|
num_packets = p[0] + 1;
|
|
GST_DEBUG_OBJECT (demux, "%u stream headers, total length=%u bytes",
|
|
(guint) num_packets, stream->codec_priv_size);
|
|
|
|
offset = num_packets; /* offset to data of first packet */
|
|
|
|
for (i = 0; i < num_packets - 1; i++) {
|
|
length = p[i + 1];
|
|
|
|
GST_DEBUG_OBJECT (demux, "buffer %d: length=%u bytes", i, (guint) length);
|
|
if (offset + length > stream->codec_priv_size)
|
|
return GST_FLOW_ERROR;
|
|
|
|
ret = gst_matroska_demux_push_hdr_buf (demux, stream, p + offset, length);
|
|
if (ret != GST_FLOW_OK)
|
|
return ret;
|
|
|
|
offset += length;
|
|
}
|
|
|
|
length = stream->codec_priv_size - offset;
|
|
GST_DEBUG_OBJECT (demux, "buffer %d: length=%u bytes", i, (guint) length);
|
|
ret = gst_matroska_demux_push_hdr_buf (demux, stream, p + offset, length);
|
|
if (ret != GST_FLOW_OK)
|
|
return ret;
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static void
|
|
gst_matroska_demux_push_dvd_clut_change_event (GstMatroskaDemux * demux,
|
|
GstMatroskaTrackContext * stream)
|
|
{
|
|
gchar *buf, *start;
|
|
|
|
g_assert (!strcmp (stream->codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_VOBSUB));
|
|
|
|
if (!stream->codec_priv)
|
|
return;
|
|
|
|
/* ideally, VobSub private data should be parsed and stored more convenient
|
|
* elsewhere, but for now, only interested in a small part */
|
|
|
|
/* make sure we have terminating 0 */
|
|
buf = g_strndup (stream->codec_priv, stream->codec_priv_size);
|
|
|
|
/* just locate and parse palette part */
|
|
start = strstr (stream->codec_priv, "palette:");
|
|
if (start) {
|
|
gint i;
|
|
guint32 clut[16];
|
|
guint32 col;
|
|
guint8 r, g, b, y, u, v;
|
|
|
|
start += 8;
|
|
while (g_ascii_isspace (*start))
|
|
start++;
|
|
for (i = 0; i < 16; i++) {
|
|
if (sscanf (start, "%06x", &col) != 1)
|
|
break;
|
|
start += 6;
|
|
while ((*start == ',') || g_ascii_isspace (*start))
|
|
start++;
|
|
/* sigh, need to convert this from vobsub pseudo-RGB to YUV */
|
|
r = (col >> 16) & 0xff;
|
|
g = (col >> 8) & 0xff;
|
|
b = col & 0xff;
|
|
y = CLAMP ((0.1494 * r + 0.6061 * g + 0.2445 * b) * 219 / 255 + 16, 0,
|
|
255);
|
|
u = CLAMP (0.6066 * r - 0.4322 * g - 0.1744 * b + 128, 0, 255);
|
|
v = CLAMP (-0.08435 * r - 0.3422 * g + 0.4266 * b + 128, 0, 255);
|
|
clut[i] = (y << 16) | (u << 8) | v;
|
|
}
|
|
|
|
/* got them all without problems; build and send event */
|
|
if (i == 16) {
|
|
GstStructure *s;
|
|
|
|
s = gst_structure_new ("application/x-gst-dvd", "event", G_TYPE_STRING,
|
|
"dvd-spu-clut-change", "clut00", G_TYPE_INT, clut[0], "clut01",
|
|
G_TYPE_INT, clut[1], "clut02", G_TYPE_INT, clut[2], "clut03",
|
|
G_TYPE_INT, clut[3], "clut04", G_TYPE_INT, clut[4], "clut05",
|
|
G_TYPE_INT, clut[5], "clut06", G_TYPE_INT, clut[6], "clut07",
|
|
G_TYPE_INT, clut[7], "clut08", G_TYPE_INT, clut[8], "clut09",
|
|
G_TYPE_INT, clut[9], "clut10", G_TYPE_INT, clut[10], "clut11",
|
|
G_TYPE_INT, clut[11], "clut12", G_TYPE_INT, clut[12], "clut13",
|
|
G_TYPE_INT, clut[13], "clut14", G_TYPE_INT, clut[14], "clut15",
|
|
G_TYPE_INT, clut[15], NULL);
|
|
|
|
gst_pad_push_event (stream->pad,
|
|
gst_event_new_custom (GST_EVENT_CUSTOM_DOWNSTREAM, s));
|
|
}
|
|
}
|
|
g_free (buf);
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_add_mpeg_seq_header (GstElement * element,
|
|
GstMatroskaTrackContext * stream, GstBuffer ** buf)
|
|
{
|
|
GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
|
|
guint8 *seq_header;
|
|
guint seq_header_len;
|
|
guint32 header;
|
|
|
|
if (stream->codec_state) {
|
|
seq_header = stream->codec_state;
|
|
seq_header_len = stream->codec_state_size;
|
|
} else if (stream->codec_priv) {
|
|
seq_header = stream->codec_priv;
|
|
seq_header_len = stream->codec_priv_size;
|
|
} else {
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
/* Sequence header only needed for keyframes */
|
|
if (GST_BUFFER_FLAG_IS_SET (*buf, GST_BUFFER_FLAG_DELTA_UNIT))
|
|
return GST_FLOW_OK;
|
|
|
|
if (GST_BUFFER_SIZE (*buf) < 4)
|
|
return GST_FLOW_OK;
|
|
|
|
header = GST_READ_UINT32_BE (GST_BUFFER_DATA (*buf));
|
|
/* Sequence start code, if not found prepend */
|
|
if (header != 0x000001b3) {
|
|
GstBuffer *newbuf;
|
|
GstFlowReturn ret, cret;
|
|
|
|
ret = gst_pad_alloc_buffer_and_set_caps (stream->pad,
|
|
GST_BUFFER_OFFSET_NONE, GST_BUFFER_SIZE (*buf) + seq_header_len,
|
|
stream->caps, &newbuf);
|
|
cret = gst_matroska_demux_combine_flows (demux, stream, ret);
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_WARNING_OBJECT (demux, "Reallocating buffer for sequence header "
|
|
"failed: %s, combined flow return: %s", gst_flow_get_name (ret),
|
|
gst_flow_get_name (cret));
|
|
return cret;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "Prepending MPEG sequence header");
|
|
gst_buffer_copy_metadata (newbuf, *buf, GST_BUFFER_COPY_TIMESTAMPS |
|
|
GST_BUFFER_COPY_FLAGS);
|
|
g_memmove (GST_BUFFER_DATA (newbuf), seq_header, seq_header_len);
|
|
g_memmove (GST_BUFFER_DATA (newbuf) + seq_header_len,
|
|
GST_BUFFER_DATA (*buf), GST_BUFFER_SIZE (*buf));
|
|
gst_buffer_unref (*buf);
|
|
*buf = newbuf;
|
|
}
|
|
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_add_wvpk_header (GstElement * element,
|
|
GstMatroskaTrackContext * stream, GstBuffer ** buf)
|
|
{
|
|
GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
|
|
GstMatroskaTrackAudioContext *audiocontext =
|
|
(GstMatroskaTrackAudioContext *) stream;
|
|
GstBuffer *newbuf = NULL;
|
|
guint8 *data;
|
|
guint newlen;
|
|
GstFlowReturn ret, cret = GST_FLOW_OK;
|
|
Wavpack4Header wvh;
|
|
|
|
wvh.ck_id[0] = 'w';
|
|
wvh.ck_id[1] = 'v';
|
|
wvh.ck_id[2] = 'p';
|
|
wvh.ck_id[3] = 'k';
|
|
|
|
wvh.version = GST_READ_UINT16_LE (stream->codec_priv);
|
|
wvh.track_no = 0;
|
|
wvh.index_no = 0;
|
|
wvh.total_samples = -1;
|
|
wvh.block_index = audiocontext->wvpk_block_index;
|
|
|
|
if (audiocontext->channels <= 2) {
|
|
guint32 block_samples;
|
|
|
|
block_samples = GST_READ_UINT32_LE (GST_BUFFER_DATA (*buf));
|
|
/* we need to reconstruct the header of the wavpack block */
|
|
|
|
/* -20 because ck_size is the size of the wavpack block -8
|
|
* and lace_size is the size of the wavpack block + 12
|
|
* (the three guint32 of the header that already are in the buffer) */
|
|
wvh.ck_size = GST_BUFFER_SIZE (*buf) + sizeof (Wavpack4Header) - 20;
|
|
|
|
/* block_samples, flags and crc are already in the buffer */
|
|
newlen = GST_BUFFER_SIZE (*buf) + sizeof (Wavpack4Header) - 12;
|
|
ret =
|
|
gst_pad_alloc_buffer_and_set_caps (stream->pad, GST_BUFFER_OFFSET_NONE,
|
|
newlen, stream->caps, &newbuf);
|
|
cret = gst_matroska_demux_combine_flows (demux, stream, ret);
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_DEBUG_OBJECT (demux, "pad_alloc failed %s, combined %s",
|
|
gst_flow_get_name (ret), gst_flow_get_name (cret));
|
|
return cret;
|
|
}
|
|
|
|
data = GST_BUFFER_DATA (newbuf);
|
|
data[0] = 'w';
|
|
data[1] = 'v';
|
|
data[2] = 'p';
|
|
data[3] = 'k';
|
|
GST_WRITE_UINT32_LE (data + 4, wvh.ck_size);
|
|
GST_WRITE_UINT16_LE (data + 8, wvh.version);
|
|
GST_WRITE_UINT8 (data + 10, wvh.track_no);
|
|
GST_WRITE_UINT8 (data + 11, wvh.index_no);
|
|
GST_WRITE_UINT32_LE (data + 12, wvh.total_samples);
|
|
GST_WRITE_UINT32_LE (data + 16, wvh.block_index);
|
|
g_memmove (data + 20, GST_BUFFER_DATA (*buf), GST_BUFFER_SIZE (*buf));
|
|
gst_buffer_copy_metadata (newbuf, *buf,
|
|
GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS);
|
|
gst_buffer_unref (*buf);
|
|
*buf = newbuf;
|
|
audiocontext->wvpk_block_index += block_samples;
|
|
} else {
|
|
guint8 *outdata;
|
|
guint outpos = 0;
|
|
guint size;
|
|
guint32 block_samples, flags, crc, blocksize;
|
|
|
|
data = GST_BUFFER_DATA (*buf);
|
|
size = GST_BUFFER_SIZE (*buf);
|
|
|
|
if (size < 4) {
|
|
GST_ERROR_OBJECT (demux, "Too small wavpack buffer");
|
|
return GST_FLOW_ERROR;
|
|
}
|
|
|
|
block_samples = GST_READ_UINT32_LE (data);
|
|
data += 4;
|
|
size -= 4;
|
|
|
|
while (size > 12) {
|
|
flags = GST_READ_UINT32_LE (data);
|
|
data += 4;
|
|
size -= 4;
|
|
crc = GST_READ_UINT32_LE (data);
|
|
data += 4;
|
|
size -= 4;
|
|
blocksize = GST_READ_UINT32_LE (data);
|
|
data += 4;
|
|
size -= 4;
|
|
|
|
if (blocksize == 0 || size < blocksize)
|
|
break;
|
|
|
|
if (newbuf == NULL) {
|
|
newbuf = gst_buffer_new_and_alloc (sizeof (Wavpack4Header) + blocksize);
|
|
gst_buffer_set_caps (newbuf, stream->caps);
|
|
|
|
gst_buffer_copy_metadata (newbuf, *buf,
|
|
GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS);
|
|
|
|
outpos = 0;
|
|
outdata = GST_BUFFER_DATA (newbuf);
|
|
} else {
|
|
GST_BUFFER_SIZE (newbuf) += sizeof (Wavpack4Header) + blocksize;
|
|
GST_BUFFER_DATA (newbuf) =
|
|
g_realloc (GST_BUFFER_DATA (newbuf), GST_BUFFER_SIZE (newbuf));
|
|
GST_BUFFER_MALLOCDATA (newbuf) = GST_BUFFER_DATA (newbuf);
|
|
outdata = GST_BUFFER_DATA (newbuf);
|
|
}
|
|
|
|
outdata[outpos] = 'w';
|
|
outdata[outpos + 1] = 'v';
|
|
outdata[outpos + 2] = 'p';
|
|
outdata[outpos + 3] = 'k';
|
|
outpos += 4;
|
|
|
|
GST_WRITE_UINT32_LE (outdata + outpos,
|
|
blocksize + sizeof (Wavpack4Header) - 8);
|
|
GST_WRITE_UINT16_LE (outdata + outpos + 4, wvh.version);
|
|
GST_WRITE_UINT8 (outdata + outpos + 6, wvh.track_no);
|
|
GST_WRITE_UINT8 (outdata + outpos + 7, wvh.index_no);
|
|
GST_WRITE_UINT32_LE (outdata + outpos + 8, wvh.total_samples);
|
|
GST_WRITE_UINT32_LE (outdata + outpos + 12, wvh.block_index);
|
|
GST_WRITE_UINT32_LE (outdata + outpos + 16, block_samples);
|
|
GST_WRITE_UINT32_LE (outdata + outpos + 20, flags);
|
|
GST_WRITE_UINT32_LE (outdata + outpos + 24, crc);
|
|
outpos += 28;
|
|
|
|
g_memmove (outdata + outpos, data, blocksize);
|
|
outpos += blocksize;
|
|
data += blocksize;
|
|
size -= blocksize;
|
|
}
|
|
gst_buffer_unref (*buf);
|
|
*buf = newbuf;
|
|
audiocontext->wvpk_block_index += block_samples;
|
|
}
|
|
|
|
return cret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_check_subtitle_buffer (GstElement * element,
|
|
GstMatroskaTrackContext * stream, GstBuffer ** buf)
|
|
{
|
|
GstMatroskaTrackSubtitleContext *sub_stream;
|
|
const gchar *encoding, *data;
|
|
GError *err = NULL;
|
|
GstBuffer *newbuf;
|
|
gchar *utf8;
|
|
guint size;
|
|
|
|
sub_stream = (GstMatroskaTrackSubtitleContext *) stream;
|
|
|
|
data = (const gchar *) GST_BUFFER_DATA (*buf);
|
|
size = GST_BUFFER_SIZE (*buf);
|
|
|
|
if (!sub_stream->invalid_utf8) {
|
|
if (g_utf8_validate (data, size, NULL)) {
|
|
return GST_FLOW_OK;
|
|
}
|
|
GST_WARNING_OBJECT (element, "subtitle stream %d is not valid UTF-8, this "
|
|
"is broken according to the matroska specification", stream->num);
|
|
sub_stream->invalid_utf8 = TRUE;
|
|
}
|
|
|
|
/* file with broken non-UTF8 subtitle, do the best we can do to fix it */
|
|
encoding = g_getenv ("GST_SUBTITLE_ENCODING");
|
|
if (encoding == NULL || *encoding == '\0') {
|
|
/* if local encoding is UTF-8 and no encoding specified
|
|
* via the environment variable, assume ISO-8859-15 */
|
|
if (g_get_charset (&encoding)) {
|
|
encoding = "ISO-8859-15";
|
|
}
|
|
}
|
|
|
|
utf8 = g_convert_with_fallback (data, size, "UTF-8", encoding, "*",
|
|
NULL, NULL, &err);
|
|
|
|
if (err) {
|
|
GST_LOG_OBJECT (element, "could not convert string from '%s' to UTF-8: %s",
|
|
encoding, err->message);
|
|
g_error_free (err);
|
|
g_free (utf8);
|
|
|
|
/* invalid input encoding, fall back to ISO-8859-15 (always succeeds) */
|
|
encoding = "ISO-8859-15";
|
|
utf8 = g_convert_with_fallback (data, size, "UTF-8", encoding, "*",
|
|
NULL, NULL, NULL);
|
|
}
|
|
|
|
GST_LOG_OBJECT (element, "converted subtitle text from %s to UTF-8 %s",
|
|
encoding, (err) ? "(using ISO-8859-15 as fallback)" : "");
|
|
|
|
if (utf8 == NULL)
|
|
utf8 = g_strdup ("invalid subtitle");
|
|
|
|
newbuf = gst_buffer_new ();
|
|
GST_BUFFER_MALLOCDATA (newbuf) = (guint8 *) utf8;
|
|
GST_BUFFER_DATA (newbuf) = (guint8 *) utf8;
|
|
GST_BUFFER_SIZE (newbuf) = strlen (utf8);
|
|
gst_buffer_copy_metadata (newbuf, *buf,
|
|
GST_BUFFER_COPY_TIMESTAMPS | GST_BUFFER_COPY_FLAGS);
|
|
gst_buffer_unref (*buf);
|
|
|
|
*buf = newbuf;
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_blockgroup_or_simpleblock (GstMatroskaDemux * demux,
|
|
guint64 cluster_time, gboolean is_simpleblock)
|
|
{
|
|
GstMatroskaTrackContext *stream = NULL;
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
gboolean readblock = FALSE;
|
|
guint32 id;
|
|
guint64 block_duration = 0;
|
|
GstBuffer *buf = NULL;
|
|
gint stream_num = -1, n, laces = 0;
|
|
guint size = 0;
|
|
gint *lace_size = NULL;
|
|
gint64 time = 0;
|
|
gint flags = 0;
|
|
gint64 referenceblock = 0;
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if (!is_simpleblock) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
} else {
|
|
id = GST_MATROSKA_ID_SIMPLEBLOCK;
|
|
}
|
|
|
|
switch (id) {
|
|
/* one block inside the group. Note, block parsing is one
|
|
* of the harder things, so this code is a bit complicated.
|
|
* See http://www.matroska.org/ for documentation. */
|
|
case GST_MATROSKA_ID_SIMPLEBLOCK:
|
|
case GST_MATROSKA_ID_BLOCK:
|
|
{
|
|
guint64 num;
|
|
guint8 *data;
|
|
|
|
if ((ret = gst_ebml_read_buffer (ebml, &id, &buf)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
data = GST_BUFFER_DATA (buf);
|
|
size = GST_BUFFER_SIZE (buf);
|
|
|
|
/* first byte(s): blocknum */
|
|
if ((n = gst_matroska_ebmlnum_uint (data, size, &num)) < 0) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL), ("Data error"));
|
|
gst_buffer_unref (buf);
|
|
buf = NULL;
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
data += n;
|
|
size -= n;
|
|
|
|
/* fetch stream from num */
|
|
stream_num = gst_matroska_demux_stream_from_num (demux, num);
|
|
if (size < 3 || stream_num < 0 || stream_num >= demux->num_streams) {
|
|
gst_buffer_unref (buf);
|
|
buf = NULL;
|
|
GST_WARNING_OBJECT (demux, "Invalid stream %d or size %u", stream_num,
|
|
size);
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
|
|
stream = g_ptr_array_index (demux->src, stream_num);
|
|
|
|
/* time (relative to cluster time) */
|
|
time = ((gint16) GST_READ_UINT16_BE (data));
|
|
data += 2;
|
|
size -= 2;
|
|
flags = GST_READ_UINT8 (data);
|
|
data += 1;
|
|
size -= 1;
|
|
|
|
switch ((flags & 0x06) >> 1) {
|
|
case 0x0: /* no lacing */
|
|
laces = 1;
|
|
lace_size = g_new (gint, 1);
|
|
lace_size[0] = size;
|
|
break;
|
|
|
|
case 0x1: /* xiph lacing */
|
|
case 0x2: /* fixed-size lacing */
|
|
case 0x3: /* EBML lacing */
|
|
if (size == 0) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
|
|
("Invalid lacing size"));
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
laces = GST_READ_UINT8 (data) + 1;
|
|
data += 1;
|
|
size -= 1;
|
|
lace_size = g_new0 (gint, laces);
|
|
|
|
switch ((flags & 0x06) >> 1) {
|
|
case 0x1: /* xiph lacing */ {
|
|
guint temp, total = 0;
|
|
|
|
for (n = 0; ret == GST_FLOW_OK && n < laces - 1; n++) {
|
|
while (1) {
|
|
if (size == 0) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
|
|
("Invalid lacing size"));
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
temp = GST_READ_UINT8 (data);
|
|
lace_size[n] += temp;
|
|
data += 1;
|
|
size -= 1;
|
|
if (temp != 0xff)
|
|
break;
|
|
}
|
|
total += lace_size[n];
|
|
}
|
|
lace_size[n] = size - total;
|
|
break;
|
|
}
|
|
|
|
case 0x2: /* fixed-size lacing */
|
|
for (n = 0; n < laces; n++)
|
|
lace_size[n] = size / laces;
|
|
break;
|
|
|
|
case 0x3: /* EBML lacing */ {
|
|
guint total;
|
|
|
|
if ((n = gst_matroska_ebmlnum_uint (data, size, &num)) < 0) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
|
|
("Data error"));
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
data += n;
|
|
size -= n;
|
|
total = lace_size[0] = num;
|
|
for (n = 1; ret == GST_FLOW_OK && n < laces - 1; n++) {
|
|
gint64 snum;
|
|
gint r;
|
|
|
|
if ((r = gst_matroska_ebmlnum_sint (data, size, &snum)) < 0) {
|
|
GST_ELEMENT_ERROR (demux, STREAM, DEMUX, (NULL),
|
|
("Data error"));
|
|
ret = GST_FLOW_ERROR;
|
|
break;
|
|
}
|
|
data += r;
|
|
size -= r;
|
|
lace_size[n] = lace_size[n - 1] + snum;
|
|
total += lace_size[n];
|
|
}
|
|
if (n < laces)
|
|
lace_size[n] = size - total;
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (stream->send_xiph_headers) {
|
|
ret = gst_matroska_demux_push_xiph_codec_priv_data (demux, stream);
|
|
stream->send_xiph_headers = FALSE;
|
|
}
|
|
|
|
if (stream->send_flac_headers) {
|
|
ret = gst_matroska_demux_push_flac_codec_priv_data (demux, stream);
|
|
stream->send_flac_headers = FALSE;
|
|
}
|
|
|
|
if (stream->send_speex_headers) {
|
|
ret = gst_matroska_demux_push_speex_codec_priv_data (demux, stream);
|
|
stream->send_speex_headers = FALSE;
|
|
}
|
|
|
|
if (stream->send_dvd_event) {
|
|
gst_matroska_demux_push_dvd_clut_change_event (demux, stream);
|
|
/* FIXME: should we send this event again after (flushing) seek ? */
|
|
stream->send_dvd_event = FALSE;
|
|
}
|
|
|
|
if (ret != GST_FLOW_OK)
|
|
break;
|
|
|
|
readblock = TRUE;
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_BLOCKDURATION:{
|
|
ret = gst_ebml_read_uint (ebml, &id, &block_duration);
|
|
GST_DEBUG_OBJECT (demux, "BlockDuration: %" G_GUINT64_FORMAT,
|
|
block_duration);
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_REFERENCEBLOCK:{
|
|
ret = gst_ebml_read_sint (ebml, &id, &referenceblock);
|
|
GST_DEBUG_OBJECT (demux, "ReferenceBlock: %" G_GINT64_FORMAT,
|
|
referenceblock);
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_CODECSTATE:{
|
|
guint8 *data;
|
|
guint64 data_len = 0;
|
|
|
|
if ((ret =
|
|
gst_ebml_read_binary (ebml, &id, &data,
|
|
&data_len)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
g_free (stream->codec_state);
|
|
stream->codec_state = data;
|
|
stream->codec_state_size = data_len;
|
|
|
|
/* Decode if necessary */
|
|
if (stream->encodings && stream->encodings->len > 0
|
|
&& stream->codec_state && stream->codec_state_size > 0) {
|
|
if (!gst_matroska_decode_data (stream->encodings,
|
|
(guint8 **) & stream->codec_state, &stream->codec_state_size,
|
|
GST_MATROSKA_TRACK_ENCODING_SCOPE_CODEC_DATA, TRUE)) {
|
|
GST_WARNING_OBJECT (demux, "Decoding codec state failed");
|
|
}
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "CodecState of %u bytes",
|
|
stream->codec_state_size);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown BlockGroup subelement 0x%x - ignoring", id);
|
|
/* fall-through */
|
|
|
|
case GST_MATROSKA_ID_BLOCKVIRTUAL:
|
|
case GST_MATROSKA_ID_BLOCKADDITIONS:
|
|
case GST_MATROSKA_ID_REFERENCEPRIORITY:
|
|
case GST_MATROSKA_ID_REFERENCEVIRTUAL:
|
|
case GST_MATROSKA_ID_SLICES:
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (is_simpleblock)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ret == GST_FLOW_OK && readblock) {
|
|
guint64 duration = 0;
|
|
gint64 lace_time = 0;
|
|
|
|
stream = g_ptr_array_index (demux->src, stream_num);
|
|
|
|
if (cluster_time != GST_CLOCK_TIME_NONE) {
|
|
/* FIXME: What to do with negative timestamps? Give timestamp 0 or -1?
|
|
* Drop unless the lace contains timestamp 0? */
|
|
if (time < 0 && (-time) > cluster_time) {
|
|
lace_time = 0;
|
|
} else {
|
|
if (stream->timecodescale == 1.0)
|
|
lace_time = (cluster_time + time) * demux->time_scale;
|
|
else
|
|
lace_time =
|
|
gst_util_guint64_to_gdouble ((cluster_time + time) *
|
|
demux->time_scale) * stream->timecodescale;
|
|
}
|
|
} else {
|
|
lace_time = GST_CLOCK_TIME_NONE;
|
|
}
|
|
|
|
if (block_duration) {
|
|
if (stream->timecodescale == 1.0)
|
|
duration = block_duration * demux->time_scale;
|
|
else
|
|
duration =
|
|
gst_util_gdouble_to_guint64 (gst_util_guint64_to_gdouble
|
|
(block_duration * demux->time_scale) * stream->timecodescale);
|
|
} else if (stream->default_duration) {
|
|
duration = stream->default_duration * laces;
|
|
}
|
|
/* else duration is diff between timecode of this and next block */
|
|
for (n = 0; n < laces; n++) {
|
|
GstBuffer *sub;
|
|
GstClockTimeDiff diff;
|
|
|
|
sub = gst_buffer_create_sub (buf,
|
|
GST_BUFFER_SIZE (buf) - size, lace_size[n]);
|
|
|
|
if (stream->encodings != NULL && stream->encodings->len > 0)
|
|
sub = gst_matroska_decode_buffer (stream, sub);
|
|
|
|
if (sub == NULL) {
|
|
GST_WARNING_OBJECT (demux, "Decoding buffer failed");
|
|
goto next_lace;
|
|
}
|
|
|
|
GST_BUFFER_TIMESTAMP (sub) = lace_time;
|
|
|
|
if (lace_time != GST_CLOCK_TIME_NONE) {
|
|
demux->segment.last_stop = lace_time;
|
|
|
|
diff = GST_CLOCK_DIFF (stream->pos, lace_time);
|
|
if (diff < -GST_SECOND / 2 || diff > GST_SECOND / 2) {
|
|
GST_DEBUG_OBJECT (demux, "Gap of %" G_GINT64_FORMAT " ns detected in"
|
|
"stream %d. Sending updated NEWSEGMENT event", diff,
|
|
stream->index);
|
|
gst_pad_push_event (stream->pad, gst_event_new_new_segment (TRUE,
|
|
demux->segment.rate, GST_FORMAT_TIME, lace_time, -1,
|
|
lace_time));
|
|
}
|
|
}
|
|
|
|
stream->pos = demux->segment.last_stop;
|
|
|
|
gst_matroska_demux_sync_streams (demux);
|
|
|
|
|
|
if (duration) {
|
|
GST_BUFFER_DURATION (sub) = duration / laces;
|
|
stream->pos += GST_BUFFER_DURATION (sub);
|
|
demux->segment.last_stop += GST_BUFFER_DURATION (sub);
|
|
}
|
|
|
|
if (is_simpleblock) {
|
|
if (flags & 0x80)
|
|
GST_BUFFER_FLAG_UNSET (sub, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
else
|
|
GST_BUFFER_FLAG_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
} else {
|
|
if (referenceblock) {
|
|
GST_BUFFER_FLAG_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
} else {
|
|
GST_BUFFER_FLAG_UNSET (sub, GST_BUFFER_FLAG_DELTA_UNIT);
|
|
}
|
|
}
|
|
|
|
if (GST_BUFFER_FLAG_IS_SET (sub, GST_BUFFER_FLAG_DELTA_UNIT)
|
|
&& stream->set_discont) {
|
|
/* When doing seeks or such, we need to restart on key frames or
|
|
* decoders might choke. */
|
|
goto done;
|
|
}
|
|
|
|
if (stream->set_discont) {
|
|
GST_BUFFER_FLAG_SET (sub, GST_BUFFER_FLAG_DISCONT);
|
|
stream->set_discont = FALSE;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux,
|
|
"Pushing lace %d, data of size %d for stream %d, time=%"
|
|
GST_TIME_FORMAT " and duration=%" GST_TIME_FORMAT, n,
|
|
GST_BUFFER_SIZE (sub), stream_num,
|
|
GST_TIME_ARGS (GST_BUFFER_TIMESTAMP (sub)),
|
|
GST_TIME_ARGS (GST_BUFFER_DURATION (sub)));
|
|
|
|
gst_buffer_set_caps (sub, GST_PAD_CAPS (stream->pad));
|
|
|
|
/* Postprocess the buffers depending on the codec used */
|
|
if (stream->postprocess_frame) {
|
|
ret = stream->postprocess_frame (GST_ELEMENT (demux), stream, &sub);
|
|
}
|
|
|
|
ret = gst_pad_push (stream->pad, sub);
|
|
/* combine flows */
|
|
ret = gst_matroska_demux_combine_flows (demux, stream, ret);
|
|
|
|
next_lace:
|
|
size -= lace_size[n];
|
|
if (lace_time != GST_CLOCK_TIME_NONE && duration)
|
|
lace_time += duration / laces;
|
|
else
|
|
lace_time = GST_CLOCK_TIME_NONE;
|
|
}
|
|
}
|
|
|
|
done:
|
|
if (readblock)
|
|
gst_buffer_unref (buf);
|
|
g_free (lace_size);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_cluster (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
guint64 cluster_time = GST_CLOCK_TIME_NONE;
|
|
guint32 id;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "Cluster");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Cluster", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
/* cluster timecode */
|
|
case GST_MATROSKA_ID_CLUSTERTIMECODE:
|
|
{
|
|
guint64 num;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &num)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
GST_DEBUG_OBJECT (demux, "ClusterTimeCode: %" G_GUINT64_FORMAT, num);
|
|
cluster_time = num;
|
|
break;
|
|
}
|
|
|
|
/* a group of blocks inside a cluster */
|
|
case GST_MATROSKA_ID_BLOCKGROUP:
|
|
DEBUG_ELEMENT_START (demux, ebml, "BlockGroup");
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) == GST_FLOW_OK) {
|
|
ret = gst_matroska_demux_parse_blockgroup_or_simpleblock (demux,
|
|
cluster_time, FALSE);
|
|
}
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "BlockGroup", ret);
|
|
break;
|
|
|
|
case GST_MATROSKA_ID_SIMPLEBLOCK:
|
|
{
|
|
DEBUG_ELEMENT_START (demux, ebml, "SimpleBlock");
|
|
ret = gst_matroska_demux_parse_blockgroup_or_simpleblock (demux,
|
|
cluster_time, TRUE);
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "SimpleBlock", ret);
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING ("Unknown Cluster subelement 0x%x - ignoring", id);
|
|
/* fall-through */
|
|
|
|
case GST_MATROSKA_ID_POSITION:
|
|
case GST_MATROSKA_ID_PREVSIZE:
|
|
case GST_MATROSKA_ID_ENCRYPTEDBLOCK:
|
|
case GST_MATROSKA_ID_SILENTTRACKS:
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Cluster", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_contents_seekentry (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret;
|
|
guint64 seek_pos = (guint64) - 1;
|
|
guint32 seek_id = 0;
|
|
guint32 id;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "Seek");
|
|
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK) {
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Seek", ret);
|
|
return ret;
|
|
}
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
case GST_MATROSKA_ID_SEEKID:
|
|
{
|
|
guint64 t;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &t)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
GST_DEBUG_OBJECT (demux, "SeekID: %" G_GUINT64_FORMAT, t);
|
|
seek_id = t;
|
|
break;
|
|
}
|
|
|
|
case GST_MATROSKA_ID_SEEKPOSITION:
|
|
{
|
|
guint64 t;
|
|
|
|
if ((ret = gst_ebml_read_uint (ebml, &id, &t)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (t > G_MAXINT64) {
|
|
GST_WARNING_OBJECT (demux,
|
|
"Too large SeekPosition %" G_GUINT64_FORMAT, t);
|
|
break;
|
|
}
|
|
|
|
GST_DEBUG_OBJECT (demux, "SeekPosition: %" G_GUINT64_FORMAT, t);
|
|
seek_pos = t;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux,
|
|
"Unknown SeekHead subelement 0x%x - ignoring", id);
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (ret != GST_FLOW_OK && ret != GST_FLOW_UNEXPECTED)
|
|
return ret;
|
|
|
|
if (!seek_id || seek_pos == (guint64) - 1) {
|
|
GST_WARNING_OBJECT (demux, "Incomplete seekhead entry (0x%x/%"
|
|
G_GUINT64_FORMAT ")", seek_id, seek_pos);
|
|
return GST_FLOW_OK;
|
|
}
|
|
|
|
switch (seek_id) {
|
|
case GST_MATROSKA_ID_CUES:
|
|
case GST_MATROSKA_ID_TAGS:
|
|
case GST_MATROSKA_ID_TRACKS:
|
|
case GST_MATROSKA_ID_SEEKHEAD:
|
|
case GST_MATROSKA_ID_SEGMENTINFO:
|
|
case GST_MATROSKA_ID_ATTACHMENTS:
|
|
case GST_MATROSKA_ID_CHAPTERS:
|
|
{
|
|
guint level_up = demux->level_up;
|
|
guint64 before_pos, length;
|
|
GstEbmlLevel *level;
|
|
|
|
/* remember */
|
|
length = gst_ebml_read_get_length (ebml);
|
|
before_pos = ebml->offset;
|
|
|
|
/* check for validity */
|
|
if (seek_pos + demux->ebml_segment_start + 12 >= length) {
|
|
GST_WARNING_OBJECT (demux,
|
|
"SeekHead reference lies outside file!" " (%"
|
|
G_GUINT64_FORMAT "+%" G_GUINT64_FORMAT "+12 >= %"
|
|
G_GUINT64_FORMAT ")", seek_pos, demux->ebml_segment_start, length);
|
|
break;
|
|
}
|
|
|
|
/* seek */
|
|
if (gst_ebml_read_seek (ebml, seek_pos + demux->ebml_segment_start) !=
|
|
GST_FLOW_OK)
|
|
break;
|
|
|
|
/* we don't want to lose our seekhead level, so we add
|
|
* a dummy. This is a crude hack. */
|
|
level = g_slice_new (GstEbmlLevel);
|
|
level->start = 0;
|
|
level->length = G_MAXUINT64;
|
|
ebml->level = g_list_prepend (ebml->level, level);
|
|
|
|
/* check ID */
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
goto finish;
|
|
|
|
if (id != seek_id) {
|
|
GST_WARNING_OBJECT (demux,
|
|
"We looked for ID=0x%x but got ID=0x%x (pos=%" G_GUINT64_FORMAT ")",
|
|
seek_id, id, seek_pos + demux->ebml_segment_start);
|
|
goto finish;
|
|
}
|
|
|
|
/* read master + parse */
|
|
switch (id) {
|
|
case GST_MATROSKA_ID_CUES:
|
|
if (!demux->index_parsed) {
|
|
ret = gst_matroska_demux_parse_index (demux);
|
|
}
|
|
break;
|
|
case GST_MATROSKA_ID_TAGS:
|
|
ret = gst_matroska_demux_parse_metadata (demux);
|
|
break;
|
|
case GST_MATROSKA_ID_TRACKS:
|
|
if (!demux->tracks_parsed) {
|
|
ret = gst_matroska_demux_parse_tracks (demux);
|
|
}
|
|
break;
|
|
|
|
case GST_MATROSKA_ID_SEGMENTINFO:
|
|
if (!demux->segmentinfo_parsed) {
|
|
ret = gst_matroska_demux_parse_info (demux);
|
|
}
|
|
break;
|
|
case GST_MATROSKA_ID_SEEKHEAD:
|
|
{
|
|
GList *l;
|
|
|
|
DEBUG_ELEMENT_START (demux, ebml, "SeekHead");
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK)
|
|
goto finish;
|
|
|
|
/* Prevent infinite recursion if there's a cycle from
|
|
* one seekhead to the same again. Simply break if
|
|
* we already had this seekhead, finish will clean up
|
|
* everything. */
|
|
for (l = ebml->level; l; l = l->next) {
|
|
GstEbmlLevel *level = (GstEbmlLevel *) l->data;
|
|
|
|
if (level->start == ebml->offset && l->prev)
|
|
goto finish;
|
|
}
|
|
|
|
ret = gst_matroska_demux_parse_contents (demux);
|
|
break;
|
|
}
|
|
case GST_MATROSKA_ID_ATTACHMENTS:
|
|
if (!demux->attachments_parsed) {
|
|
ret = gst_matroska_demux_parse_attachments (demux);
|
|
}
|
|
break;
|
|
case GST_MATROSKA_ID_CHAPTERS:
|
|
ret = gst_matroska_demux_parse_chapters (demux);
|
|
break;
|
|
}
|
|
|
|
finish:
|
|
/* remove dummy level */
|
|
while (ebml->level) {
|
|
guint64 length;
|
|
|
|
level = ebml->level->data;
|
|
ebml->level = g_list_delete_link (ebml->level, ebml->level);
|
|
length = level->length;
|
|
g_slice_free (GstEbmlLevel, level);
|
|
if (length == G_MAXUINT64)
|
|
break;
|
|
}
|
|
|
|
/* seek back */
|
|
(void) gst_ebml_read_seek (ebml, before_pos);
|
|
demux->level_up = level_up;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_DEBUG_OBJECT (demux, "Ignoring Seek entry for ID=0x%x", seek_id);
|
|
break;
|
|
}
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "Seek", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_parse_contents (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
guint32 id;
|
|
|
|
while (ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
switch (id) {
|
|
case GST_MATROSKA_ID_SEEKENTRY:
|
|
{
|
|
ret = gst_matroska_demux_parse_contents_seekentry (demux);
|
|
/* Ignore EOS and errors here */
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_DEBUG_OBJECT (demux, "Ignoring %s", gst_flow_get_name (ret));
|
|
ret = GST_FLOW_OK;
|
|
}
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING ("Unknown SeekHead subelement 0x%x - ignoring", id);
|
|
ret = gst_ebml_read_skip (ebml);
|
|
break;
|
|
}
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
|
|
DEBUG_ELEMENT_STOP (demux, ebml, "SeekHead", ret);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* returns FALSE on error, otherwise TRUE */
|
|
static GstFlowReturn
|
|
gst_matroska_demux_loop_stream_parse_id (GstMatroskaDemux * demux,
|
|
guint32 id, gboolean * p_run_loop)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
|
|
switch (id) {
|
|
/* stream info
|
|
* Can exist more than once but following occurences
|
|
* must have the same content so ignore them */
|
|
case GST_MATROSKA_ID_SEGMENTINFO:
|
|
if (!demux->segmentinfo_parsed) {
|
|
if ((ret = gst_matroska_demux_parse_info (demux)) != GST_FLOW_OK)
|
|
return ret;
|
|
} else {
|
|
if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
|
|
return ret;
|
|
}
|
|
break;
|
|
|
|
/* track info headers
|
|
* Can exist more than once but following occurences
|
|
* must have the same content so ignore them */
|
|
case GST_MATROSKA_ID_TRACKS:
|
|
{
|
|
if (!demux->tracks_parsed) {
|
|
if ((ret = gst_matroska_demux_parse_tracks (demux)) != GST_FLOW_OK)
|
|
return ret;
|
|
} else {
|
|
if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
|
|
return ret;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* cues - seek table
|
|
* Either exists exactly one time or never but ignore
|
|
* following occurences for the sake of sanity */
|
|
case GST_MATROSKA_ID_CUES:
|
|
{
|
|
if (!demux->index_parsed) {
|
|
if ((ret = gst_matroska_demux_parse_index (demux)) != GST_FLOW_OK)
|
|
return ret;
|
|
} else {
|
|
if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
|
|
return ret;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* metadata
|
|
* can exist more than one time with different content */
|
|
case GST_MATROSKA_ID_TAGS:
|
|
{
|
|
if ((ret = gst_matroska_demux_parse_metadata (demux)) != GST_FLOW_OK)
|
|
return ret;
|
|
break;
|
|
}
|
|
|
|
/* file index (if seekable, seek to Cues/Tags/etc to parse it) */
|
|
case GST_MATROSKA_ID_SEEKHEAD:
|
|
{
|
|
DEBUG_ELEMENT_START (demux, ebml, "SeekHead");
|
|
if ((ret = gst_ebml_read_master (ebml, &id)) != GST_FLOW_OK)
|
|
return ret;
|
|
if ((ret = gst_matroska_demux_parse_contents (demux)) != GST_FLOW_OK)
|
|
return ret;
|
|
break;
|
|
}
|
|
|
|
/* cluster - contains the payload */
|
|
case GST_MATROSKA_ID_CLUSTER:
|
|
{
|
|
if (demux->state != GST_MATROSKA_DEMUX_STATE_DATA) {
|
|
/* We need a Tracks element first before we can output anything.
|
|
* Search it!
|
|
*/
|
|
if (!demux->tracks_parsed) {
|
|
GstEbmlLevel *level;
|
|
guint32 iid;
|
|
guint level_up;
|
|
guint64 before_pos;
|
|
|
|
GST_WARNING_OBJECT (demux,
|
|
"Found Cluster element before Tracks, searching Tracks");
|
|
|
|
/* remember */
|
|
level_up = demux->level_up;
|
|
before_pos = ebml->offset;
|
|
|
|
/* we don't want to lose our seekhead level, so we add
|
|
* a dummy. This is a crude hack. */
|
|
|
|
level = g_slice_new (GstEbmlLevel);
|
|
level->start = 0;
|
|
level->length = G_MAXUINT64;
|
|
ebml->level = g_list_prepend (ebml->level, level);
|
|
|
|
/* Search Tracks element */
|
|
while (TRUE) {
|
|
if (gst_ebml_read_skip (ebml) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (gst_ebml_peek_id (ebml, &demux->level_up, &iid) != GST_FLOW_OK)
|
|
break;
|
|
|
|
if (iid != GST_MATROSKA_ID_TRACKS)
|
|
continue;
|
|
|
|
gst_matroska_demux_parse_tracks (demux);
|
|
break;
|
|
}
|
|
|
|
if (!demux->tracks_parsed) {
|
|
GST_ERROR_OBJECT (demux, "No Tracks element found");
|
|
ret = GST_FLOW_ERROR;
|
|
}
|
|
|
|
/* remove dummy level */
|
|
while (ebml->level) {
|
|
guint64 length;
|
|
|
|
level = ebml->level->data;
|
|
ebml->level = g_list_delete_link (ebml->level, ebml->level);
|
|
length = level->length;
|
|
g_slice_free (GstEbmlLevel, level);
|
|
if (length == G_MAXUINT64)
|
|
break;
|
|
}
|
|
|
|
/* seek back */
|
|
gst_ebml_read_seek (ebml, before_pos);
|
|
demux->level_up = level_up;
|
|
}
|
|
|
|
if (ret != GST_FLOW_OK)
|
|
return ret;
|
|
|
|
demux->state = GST_MATROSKA_DEMUX_STATE_DATA;
|
|
/* send initial discont */
|
|
gst_matroska_demux_send_event (demux,
|
|
gst_event_new_new_segment (FALSE, 1.0,
|
|
GST_FORMAT_TIME, 0,
|
|
(demux->segment.duration > 0) ? demux->segment.duration : -1,
|
|
0));
|
|
GST_DEBUG_OBJECT (demux, "signaling no more pads");
|
|
gst_element_no_more_pads (GST_ELEMENT (demux));
|
|
} else {
|
|
/* The idea is that we parse one cluster per loop and
|
|
* then break out of the loop here. In the next call
|
|
* of the loopfunc, we will get back here with the
|
|
* next cluster. If an error occurs, we didn't
|
|
* actually push a buffer, but we still want to break
|
|
* out of the loop to handle a possible error. We'll
|
|
* get back here if it's recoverable. */
|
|
if ((ret = gst_matroska_demux_parse_cluster (demux)) != GST_FLOW_OK)
|
|
return ret;
|
|
*p_run_loop = FALSE;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* attachments - contains files attached to the mkv container
|
|
* like album art, etc */
|
|
case GST_MATROSKA_ID_ATTACHMENTS:{
|
|
if (!demux->attachments_parsed) {
|
|
if ((ret = gst_matroska_demux_parse_attachments (demux)) != GST_FLOW_OK)
|
|
return ret;
|
|
} else {
|
|
if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
|
|
return ret;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/* chapters - contains meta information about how to group
|
|
* the file into chapters, similar to DVD */
|
|
case GST_MATROSKA_ID_CHAPTERS:{
|
|
if ((ret = gst_matroska_demux_parse_chapters (demux)) != GST_FLOW_OK)
|
|
return ret;
|
|
break;
|
|
}
|
|
|
|
default:
|
|
GST_WARNING_OBJECT (demux, "Unknown Segment subelement 0x%x at %"
|
|
G_GUINT64_FORMAT " - ignoring", id, GST_EBML_READ (demux)->offset);
|
|
if ((ret = gst_ebml_read_skip (ebml)) != GST_FLOW_OK)
|
|
return ret;
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static GstFlowReturn
|
|
gst_matroska_demux_loop_stream (GstMatroskaDemux * demux)
|
|
{
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret = GST_FLOW_OK;
|
|
gboolean run_loop = TRUE;
|
|
guint32 id;
|
|
|
|
/* we've found our segment, start reading the different contents in here */
|
|
while (run_loop && ret == GST_FLOW_OK) {
|
|
if ((ret = gst_ebml_peek_id (ebml, &demux->level_up, &id)) != GST_FLOW_OK)
|
|
return ret;
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
|
|
ret = gst_matroska_demux_loop_stream_parse_id (demux, id, &run_loop);
|
|
|
|
if (demux->level_up) {
|
|
demux->level_up--;
|
|
break;
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
gst_matroska_demux_loop (GstPad * pad)
|
|
{
|
|
GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (pad));
|
|
GstEbmlRead *ebml = GST_EBML_READ (demux);
|
|
GstFlowReturn ret;
|
|
|
|
/* first, if we're to start, let's actually get starting */
|
|
if (demux->state == GST_MATROSKA_DEMUX_STATE_START) {
|
|
ret = gst_matroska_demux_init_stream (demux);
|
|
if (ret != GST_FLOW_OK) {
|
|
GST_WARNING_OBJECT (demux, "init stream failed!");
|
|
goto pause;
|
|
}
|
|
demux->state = GST_MATROSKA_DEMUX_STATE_HEADER;
|
|
}
|
|
|
|
/* If we have to close a segment are send a new segment do
|
|
* this now */
|
|
|
|
if (demux->state == GST_MATROSKA_DEMUX_STATE_DATA) {
|
|
if (demux->close_segment) {
|
|
gst_matroska_demux_send_event (demux, demux->close_segment);
|
|
demux->close_segment = NULL;
|
|
}
|
|
if (demux->new_segment) {
|
|
gst_matroska_demux_send_event (demux, demux->new_segment);
|
|
demux->new_segment = NULL;
|
|
}
|
|
}
|
|
|
|
ret = gst_matroska_demux_loop_stream (demux);
|
|
if (ret != GST_FLOW_OK)
|
|
goto pause;
|
|
|
|
/* check if we're at the end of a configured segment */
|
|
if (GST_CLOCK_TIME_IS_VALID (demux->segment.stop)) {
|
|
guint i;
|
|
|
|
g_assert (demux->num_streams == demux->src->len);
|
|
for (i = 0; i < demux->src->len; i++) {
|
|
GstMatroskaTrackContext *context = g_ptr_array_index (demux->src, i);
|
|
if (context->pos >= demux->segment.stop) {
|
|
GST_INFO_OBJECT (demux, "Reached end of segment (%" G_GUINT64_FORMAT
|
|
"-%" G_GUINT64_FORMAT ") on pad %s:%s", demux->segment.start,
|
|
demux->segment.stop, GST_DEBUG_PAD_NAME (context->pad));
|
|
ret = GST_FLOW_UNEXPECTED;
|
|
goto pause;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ebml->offset == gst_ebml_read_get_length (ebml)) {
|
|
GST_LOG_OBJECT (demux, "Reached end of stream, sending EOS");
|
|
ret = GST_FLOW_UNEXPECTED;
|
|
goto pause;
|
|
}
|
|
|
|
return;
|
|
|
|
/* ERRORS */
|
|
pause:
|
|
{
|
|
const gchar *reason = gst_flow_get_name (ret);
|
|
|
|
GST_LOG_OBJECT (demux, "pausing task, reason %s", reason);
|
|
demux->segment_running = FALSE;
|
|
gst_pad_pause_task (demux->sinkpad);
|
|
|
|
if (GST_FLOW_IS_FATAL (ret) || ret == GST_FLOW_NOT_LINKED) {
|
|
if (ret == GST_FLOW_UNEXPECTED) {
|
|
/* perform EOS logic */
|
|
if (demux->segment.flags & GST_SEEK_FLAG_SEGMENT) {
|
|
gint64 stop;
|
|
|
|
/* for segment playback we need to post when (in stream time)
|
|
* we stopped, this is either stop (when set) or the duration. */
|
|
if ((stop = demux->segment.stop) == -1)
|
|
stop = demux->segment.duration;
|
|
|
|
GST_LOG_OBJECT (demux, "Sending segment done, at end of segment");
|
|
gst_element_post_message (GST_ELEMENT (demux),
|
|
gst_message_new_segment_done (GST_OBJECT (demux), GST_FORMAT_TIME,
|
|
stop));
|
|
} else {
|
|
/* normal playback, send EOS to all linked pads */
|
|
GST_LOG_OBJECT (demux, "Sending EOS, at end of stream");
|
|
gst_matroska_demux_send_event (demux, gst_event_new_eos ());
|
|
}
|
|
} else {
|
|
GST_ELEMENT_ERROR (demux, STREAM, FAILED, (NULL),
|
|
("stream stopped, reason %s", reason));
|
|
gst_matroska_demux_send_event (demux, gst_event_new_eos ());
|
|
}
|
|
}
|
|
return;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_demux_sink_activate (GstPad * sinkpad)
|
|
{
|
|
if (gst_pad_check_pull_range (sinkpad))
|
|
return gst_pad_activate_pull (sinkpad, TRUE);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
gst_matroska_demux_sink_activate_pull (GstPad * sinkpad, gboolean active)
|
|
{
|
|
GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (GST_PAD_PARENT (sinkpad));
|
|
|
|
if (active) {
|
|
/* if we have a scheduler we can start the task */
|
|
demux->segment_running = TRUE;
|
|
gst_pad_start_task (sinkpad, (GstTaskFunction) gst_matroska_demux_loop,
|
|
sinkpad);
|
|
} else {
|
|
demux->segment_running = FALSE;
|
|
gst_pad_stop_task (sinkpad);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_matroska_demux_video_caps (GstMatroskaTrackVideoContext *
|
|
videocontext, const gchar * codec_id, guint8 * data, guint size,
|
|
gchar ** codec_name)
|
|
{
|
|
GstMatroskaTrackContext *context = (GstMatroskaTrackContext *) videocontext;
|
|
GstCaps *caps = NULL;
|
|
|
|
g_assert (videocontext != NULL);
|
|
g_assert (codec_name != NULL);
|
|
|
|
context->send_xiph_headers = FALSE;
|
|
context->send_flac_headers = FALSE;
|
|
context->send_speex_headers = FALSE;
|
|
|
|
/* TODO: check if we have all codec types from matroska-ids.h
|
|
* check if we have to do more special things with codec_private
|
|
*
|
|
* Add support for
|
|
* GST_MATROSKA_CODEC_ID_VIDEO_QUICKTIME
|
|
* GST_MATROSKA_CODEC_ID_VIDEO_SNOW
|
|
*/
|
|
|
|
if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_VFW_FOURCC)) {
|
|
gst_riff_strf_vids *vids = NULL;
|
|
|
|
if (data) {
|
|
GstBuffer *buf = NULL;
|
|
|
|
vids = (gst_riff_strf_vids *) data;
|
|
|
|
/* assure size is big enough */
|
|
if (size < 24) {
|
|
GST_WARNING ("Too small BITMAPINFOHEADER (%d bytes)", size);
|
|
return NULL;
|
|
}
|
|
if (size < sizeof (gst_riff_strf_vids)) {
|
|
vids = g_new (gst_riff_strf_vids, 1);
|
|
memcpy (vids, data, size);
|
|
}
|
|
|
|
/* little-endian -> byte-order */
|
|
vids->size = GUINT32_FROM_LE (vids->size);
|
|
vids->width = GUINT32_FROM_LE (vids->width);
|
|
vids->height = GUINT32_FROM_LE (vids->height);
|
|
vids->planes = GUINT16_FROM_LE (vids->planes);
|
|
vids->bit_cnt = GUINT16_FROM_LE (vids->bit_cnt);
|
|
vids->compression = GUINT32_FROM_LE (vids->compression);
|
|
vids->image_size = GUINT32_FROM_LE (vids->image_size);
|
|
vids->xpels_meter = GUINT32_FROM_LE (vids->xpels_meter);
|
|
vids->ypels_meter = GUINT32_FROM_LE (vids->ypels_meter);
|
|
vids->num_colors = GUINT32_FROM_LE (vids->num_colors);
|
|
vids->imp_colors = GUINT32_FROM_LE (vids->imp_colors);
|
|
|
|
if (size > sizeof (gst_riff_strf_vids)) { /* some extra_data */
|
|
buf = gst_buffer_new_and_alloc (size - sizeof (gst_riff_strf_vids));
|
|
memcpy (GST_BUFFER_DATA (buf),
|
|
(guint8 *) vids + sizeof (gst_riff_strf_vids),
|
|
GST_BUFFER_SIZE (buf));
|
|
}
|
|
|
|
caps = gst_riff_create_video_caps (vids->compression, NULL, vids,
|
|
buf, NULL, codec_name);
|
|
|
|
if (buf)
|
|
gst_buffer_unref (buf);
|
|
|
|
if (vids != (gst_riff_strf_vids *) data)
|
|
g_free (vids);
|
|
}
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_UNCOMPRESSED)) {
|
|
guint32 fourcc = 0;
|
|
|
|
switch (videocontext->fourcc) {
|
|
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
|
|
*codec_name = g_strdup ("Raw planar YUV 4:2:0");
|
|
fourcc = videocontext->fourcc;
|
|
break;
|
|
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
|
|
*codec_name = g_strdup ("Raw packed YUV 4:2:2");
|
|
fourcc = videocontext->fourcc;
|
|
break;
|
|
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):
|
|
*codec_name = g_strdup ("Raw packed YUV 4:2:0");
|
|
fourcc = videocontext->fourcc;
|
|
break;
|
|
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
|
|
*codec_name = g_strdup ("Raw packed YUV 4:2:2");
|
|
fourcc = videocontext->fourcc;
|
|
break;
|
|
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
|
|
*codec_name = g_strdup ("Raw packed YUV 4:4:4 with alpha channel");
|
|
fourcc = videocontext->fourcc;
|
|
break;
|
|
|
|
default:
|
|
GST_DEBUG ("Unknown fourcc %" GST_FOURCC_FORMAT,
|
|
GST_FOURCC_ARGS (videocontext->fourcc));
|
|
return NULL;
|
|
}
|
|
|
|
caps = gst_caps_new_simple ("video/x-raw-yuv",
|
|
"format", GST_TYPE_FOURCC, fourcc, NULL);
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_SP)) {
|
|
caps = gst_caps_new_simple ("video/x-divx",
|
|
"divxversion", G_TYPE_INT, 4, NULL);
|
|
*codec_name = g_strdup ("MPEG-4 simple profile");
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_ASP) ||
|
|
!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_AP)) {
|
|
#if 0
|
|
caps = gst_caps_new_full (gst_structure_new ("video/x-divx",
|
|
"divxversion", G_TYPE_INT, 5, NULL),
|
|
gst_structure_new ("video/x-xvid", NULL),
|
|
gst_structure_new ("video/mpeg",
|
|
"mpegversion", G_TYPE_INT, 4,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL), NULL);
|
|
#endif
|
|
caps = gst_caps_new_simple ("video/mpeg",
|
|
"mpegversion", G_TYPE_INT, 4,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
if (data) {
|
|
GstBuffer *priv = gst_buffer_new_and_alloc (size);
|
|
|
|
memcpy (GST_BUFFER_DATA (priv), data, size);
|
|
gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL);
|
|
gst_buffer_unref (priv);
|
|
}
|
|
if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_ASP))
|
|
*codec_name = g_strdup ("MPEG-4 advanced simple profile");
|
|
else
|
|
*codec_name = g_strdup ("MPEG-4 advanced profile");
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MSMPEG4V3)) {
|
|
#if 0
|
|
caps = gst_caps_new_full (gst_structure_new ("video/x-divx",
|
|
"divxversion", G_TYPE_INT, 3, NULL),
|
|
gst_structure_new ("video/x-msmpeg",
|
|
"msmpegversion", G_TYPE_INT, 43, NULL), NULL);
|
|
#endif
|
|
caps = gst_caps_new_simple ("video/x-msmpeg",
|
|
"msmpegversion", G_TYPE_INT, 43, NULL);
|
|
*codec_name = g_strdup ("Microsoft MPEG-4 v.3");
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG1) ||
|
|
!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG2)) {
|
|
gint mpegversion = -1;
|
|
|
|
if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG1))
|
|
mpegversion = 1;
|
|
else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG2))
|
|
mpegversion = 2;
|
|
else
|
|
g_assert_not_reached ();
|
|
|
|
caps = gst_caps_new_simple ("video/mpeg",
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE,
|
|
"mpegversion", G_TYPE_INT, mpegversion, NULL);
|
|
*codec_name = g_strdup_printf ("MPEG-%d video", mpegversion);
|
|
context->postprocess_frame = gst_matroska_demux_add_mpeg_seq_header;
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MJPEG)) {
|
|
caps = gst_caps_new_simple ("image/jpeg", NULL);
|
|
*codec_name = g_strdup ("Motion-JPEG");
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_MPEG4_AVC)) {
|
|
caps = gst_caps_new_simple ("video/x-h264", NULL);
|
|
if (data) {
|
|
GstBuffer *priv = gst_buffer_new_and_alloc (size);
|
|
|
|
memcpy (GST_BUFFER_DATA (priv), data, size);
|
|
gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL);
|
|
gst_buffer_unref (priv);
|
|
|
|
}
|
|
*codec_name = g_strdup ("H264");
|
|
} else if ((!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO1)) ||
|
|
(!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO2)) ||
|
|
(!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO3)) ||
|
|
(!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO4))) {
|
|
gint rmversion = -1;
|
|
|
|
if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO1))
|
|
rmversion = 1;
|
|
else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO2))
|
|
rmversion = 2;
|
|
else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO3))
|
|
rmversion = 3;
|
|
else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_REALVIDEO4))
|
|
rmversion = 4;
|
|
|
|
caps = gst_caps_new_simple ("video/x-pn-realvideo",
|
|
"rmversion", G_TYPE_INT, rmversion, NULL);
|
|
GST_DEBUG ("data:%p, size:0x%x", data, size);
|
|
/* We need to extract the extradata ! */
|
|
if (data && (size >= 0x22)) {
|
|
GstBuffer *priv;
|
|
guint rformat;
|
|
guint subformat;
|
|
|
|
subformat = GST_READ_UINT32_BE (data + 0x1a);
|
|
rformat = GST_READ_UINT32_BE (data + 0x1e);
|
|
|
|
priv = gst_buffer_new_and_alloc (size - 0x1a);
|
|
|
|
memcpy (GST_BUFFER_DATA (priv), data + 0x1a, size - 0x1a);
|
|
gst_caps_set_simple (caps,
|
|
"codec_data", GST_TYPE_BUFFER, priv,
|
|
"format", G_TYPE_INT, rformat,
|
|
"subformat", G_TYPE_INT, subformat, NULL);
|
|
gst_buffer_unref (priv);
|
|
|
|
}
|
|
*codec_name = g_strdup_printf ("RealVideo %d.0", rmversion);
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_THEORA)) {
|
|
caps = gst_caps_new_simple ("video/x-theora", NULL);
|
|
context->send_xiph_headers = TRUE;
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_VIDEO_DIRAC)) {
|
|
caps = gst_caps_new_simple ("video/x-dirac", NULL);
|
|
context->send_xiph_headers = FALSE;
|
|
} else {
|
|
GST_WARNING ("Unknown codec '%s', cannot build Caps", codec_id);
|
|
return NULL;
|
|
}
|
|
|
|
if (caps != NULL) {
|
|
int i;
|
|
GstStructure *structure;
|
|
|
|
for (i = 0; i < gst_caps_get_size (caps); i++) {
|
|
structure = gst_caps_get_structure (caps, i);
|
|
|
|
/* FIXME: use the real unit here! */
|
|
GST_DEBUG ("video size %dx%d, target display size %dx%d (any unit)",
|
|
videocontext->pixel_width,
|
|
videocontext->pixel_height,
|
|
videocontext->display_width, videocontext->display_height);
|
|
|
|
/* pixel width and height are the w and h of the video in pixels */
|
|
if (videocontext->pixel_width > 0 && videocontext->pixel_height > 0) {
|
|
gint w = videocontext->pixel_width;
|
|
|
|
gint h = videocontext->pixel_height;
|
|
|
|
gst_structure_set (structure,
|
|
"width", G_TYPE_INT, w, "height", G_TYPE_INT, h, NULL);
|
|
}
|
|
|
|
if (videocontext->display_width > 0 && videocontext->display_height > 0) {
|
|
int n, d;
|
|
|
|
/* calculate the pixel aspect ratio using the display and pixel w/h */
|
|
n = videocontext->display_width * videocontext->pixel_height;
|
|
d = videocontext->display_height * videocontext->pixel_width;
|
|
GST_DEBUG ("setting PAR to %d/%d", n, d);
|
|
gst_structure_set (structure, "pixel-aspect-ratio",
|
|
GST_TYPE_FRACTION,
|
|
videocontext->display_width * videocontext->pixel_height,
|
|
videocontext->display_height * videocontext->pixel_width, NULL);
|
|
}
|
|
|
|
if (videocontext->default_fps > 0.0) {
|
|
GValue fps_double = { 0, };
|
|
GValue fps_fraction = { 0, };
|
|
|
|
g_value_init (&fps_double, G_TYPE_DOUBLE);
|
|
g_value_init (&fps_fraction, GST_TYPE_FRACTION);
|
|
g_value_set_double (&fps_double, videocontext->default_fps);
|
|
g_value_transform (&fps_double, &fps_fraction);
|
|
|
|
gst_structure_set_value (structure, "framerate", &fps_fraction);
|
|
g_value_unset (&fps_double);
|
|
g_value_unset (&fps_fraction);
|
|
} else if (context->default_duration > 0) {
|
|
GValue fps_double = { 0, };
|
|
GValue fps_fraction = { 0, };
|
|
|
|
g_value_init (&fps_double, G_TYPE_DOUBLE);
|
|
g_value_init (&fps_fraction, GST_TYPE_FRACTION);
|
|
g_value_set_double (&fps_double, (gdouble) GST_SECOND /
|
|
gst_guint64_to_gdouble (context->default_duration));
|
|
g_value_transform (&fps_double, &fps_fraction);
|
|
|
|
gst_structure_set_value (structure, "framerate", &fps_fraction);
|
|
g_value_unset (&fps_double);
|
|
g_value_unset (&fps_fraction);
|
|
} else {
|
|
/* sort of a hack to get most codecs to support,
|
|
* even if the default_duration is missing */
|
|
gst_structure_set (structure, "framerate", GST_TYPE_FRACTION,
|
|
25, 1, NULL);
|
|
}
|
|
}
|
|
|
|
gst_caps_do_simplify (caps);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
/*
|
|
* Some AAC specific code... *sigh*
|
|
* FIXME: maybe we should use '15' and code the sample rate explicitly
|
|
* if the sample rate doesn't match the predefined rates exactly? (tpm)
|
|
*/
|
|
|
|
static gint
|
|
aac_rate_idx (gint rate)
|
|
{
|
|
if (92017 <= rate)
|
|
return 0;
|
|
else if (75132 <= rate)
|
|
return 1;
|
|
else if (55426 <= rate)
|
|
return 2;
|
|
else if (46009 <= rate)
|
|
return 3;
|
|
else if (37566 <= rate)
|
|
return 4;
|
|
else if (27713 <= rate)
|
|
return 5;
|
|
else if (23004 <= rate)
|
|
return 6;
|
|
else if (18783 <= rate)
|
|
return 7;
|
|
else if (13856 <= rate)
|
|
return 8;
|
|
else if (11502 <= rate)
|
|
return 9;
|
|
else if (9391 <= rate)
|
|
return 10;
|
|
else
|
|
return 11;
|
|
}
|
|
|
|
static gint
|
|
aac_profile_idx (const gchar * codec_id)
|
|
{
|
|
gint profile;
|
|
|
|
if (strlen (codec_id) <= 12)
|
|
profile = 3;
|
|
else if (!strncmp (&codec_id[12], "MAIN", 4))
|
|
profile = 0;
|
|
else if (!strncmp (&codec_id[12], "LC", 2))
|
|
profile = 1;
|
|
else if (!strncmp (&codec_id[12], "SSR", 3))
|
|
profile = 2;
|
|
else
|
|
profile = 3;
|
|
|
|
return profile;
|
|
}
|
|
|
|
#define AAC_SYNC_EXTENSION_TYPE 0x02b7
|
|
|
|
static GstCaps *
|
|
gst_matroska_demux_audio_caps (GstMatroskaTrackAudioContext *
|
|
audiocontext, const gchar * codec_id, guint8 * data, guint size,
|
|
gchar ** codec_name)
|
|
{
|
|
GstMatroskaTrackContext *context = (GstMatroskaTrackContext *) audiocontext;
|
|
GstCaps *caps = NULL;
|
|
|
|
g_assert (audiocontext != NULL);
|
|
g_assert (codec_name != NULL);
|
|
|
|
context->send_xiph_headers = FALSE;
|
|
context->send_flac_headers = FALSE;
|
|
context->send_speex_headers = FALSE;
|
|
|
|
/* TODO: check if we have all codec types from matroska-ids.h
|
|
* check if we have to do more special things with codec_private
|
|
* check if we need bitdepth in different places too
|
|
* implement channel position magic
|
|
* Add support for:
|
|
* GST_MATROSKA_CODEC_ID_AUDIO_AC3_BSID9
|
|
* GST_MATROSKA_CODEC_ID_AUDIO_AC3_BSID10
|
|
* GST_MATROSKA_CODEC_ID_AUDIO_QUICKTIME_QDMC
|
|
* GST_MATROSKA_CODEC_ID_AUDIO_QUICKTIME_QDM2
|
|
*/
|
|
|
|
if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L1) ||
|
|
!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L2) ||
|
|
!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L3)) {
|
|
gint layer = -1;
|
|
|
|
if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L1))
|
|
layer = 1;
|
|
else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L2))
|
|
layer = 2;
|
|
else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_MPEG1_L3))
|
|
layer = 3;
|
|
else
|
|
g_assert_not_reached ();
|
|
|
|
caps = gst_caps_new_simple ("audio/mpeg",
|
|
"mpegversion", G_TYPE_INT, 1, "layer", G_TYPE_INT, layer, NULL);
|
|
*codec_name = g_strdup_printf ("MPEG-1 layer %d", layer);
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_BE) ||
|
|
!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_LE)) {
|
|
gint endianness = -1;
|
|
|
|
if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_BE))
|
|
endianness = G_BIG_ENDIAN;
|
|
else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_INT_LE))
|
|
endianness = G_LITTLE_ENDIAN;
|
|
else
|
|
g_assert_not_reached ();
|
|
|
|
caps = gst_caps_new_simple ("audio/x-raw-int",
|
|
"width", G_TYPE_INT, audiocontext->bitdepth,
|
|
"depth", G_TYPE_INT, audiocontext->bitdepth,
|
|
"signed", G_TYPE_BOOLEAN, audiocontext->bitdepth != 8,
|
|
"endianness", G_TYPE_INT, endianness, NULL);
|
|
|
|
*codec_name = g_strdup_printf ("Raw %d-bit PCM audio",
|
|
audiocontext->bitdepth);
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_PCM_FLOAT)) {
|
|
caps = gst_caps_new_simple ("audio/x-raw-float",
|
|
"endianness", G_TYPE_INT, G_LITTLE_ENDIAN,
|
|
"width", G_TYPE_INT, audiocontext->bitdepth, NULL);
|
|
*codec_name = g_strdup_printf ("Raw %d-bit floating-point audio",
|
|
audiocontext->bitdepth);
|
|
} else if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AC3,
|
|
strlen (GST_MATROSKA_CODEC_ID_AUDIO_AC3))) {
|
|
caps = gst_caps_new_simple ("audio/x-ac3", NULL);
|
|
*codec_name = g_strdup ("AC-3 audio");
|
|
} else if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_EAC3,
|
|
strlen (GST_MATROSKA_CODEC_ID_AUDIO_EAC3))) {
|
|
caps = gst_caps_new_simple ("audio/x-eac3", NULL);
|
|
*codec_name = g_strdup ("E-AC-3 audio");
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_DTS)) {
|
|
caps = gst_caps_new_simple ("audio/x-dts", NULL);
|
|
*codec_name = g_strdup ("DTS audio");
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_VORBIS)) {
|
|
caps = gst_caps_new_simple ("audio/x-vorbis", NULL);
|
|
context->send_xiph_headers = TRUE;
|
|
/* vorbis decoder does tags */
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_FLAC)) {
|
|
caps = gst_caps_new_simple ("audio/x-flac", NULL);
|
|
context->send_flac_headers = TRUE;
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_SPEEX)) {
|
|
caps = gst_caps_new_simple ("audio/x-speex", NULL);
|
|
context->send_speex_headers = TRUE;
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_ACM)) {
|
|
gst_riff_strf_auds *auds = NULL;
|
|
|
|
if (data) {
|
|
auds = (gst_riff_strf_auds *) data;
|
|
|
|
/* little-endian -> byte-order */
|
|
auds->format = GUINT16_FROM_LE (auds->format);
|
|
auds->channels = GUINT16_FROM_LE (auds->channels);
|
|
auds->rate = GUINT32_FROM_LE (auds->rate);
|
|
auds->av_bps = GUINT32_FROM_LE (auds->av_bps);
|
|
auds->blockalign = GUINT16_FROM_LE (auds->blockalign);
|
|
auds->size = GUINT16_FROM_LE (auds->size);
|
|
|
|
caps = gst_riff_create_audio_caps (auds->format, NULL, auds, NULL,
|
|
NULL, codec_name);
|
|
}
|
|
} else if (g_str_has_prefix (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC)) {
|
|
GstBuffer *priv = NULL;
|
|
gint mpegversion = -1;
|
|
gint rate_idx, profile;
|
|
guint8 *data = NULL;
|
|
|
|
/* unspecified AAC profile with opaque private codec data */
|
|
if (strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC) == 0) {
|
|
if (context->codec_priv_size >= 2) {
|
|
guint obj_type, freq_index, explicit_freq_bytes = 0;
|
|
|
|
codec_id = GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4;
|
|
freq_index = (GST_READ_UINT16_BE (context->codec_priv) & 0x780) >> 7;
|
|
obj_type = (GST_READ_UINT16_BE (context->codec_priv) & 0xF800) >> 11;
|
|
if (freq_index == 15)
|
|
explicit_freq_bytes = 3;
|
|
GST_DEBUG ("obj_type = %u, freq_index = %u", obj_type, freq_index);
|
|
priv = gst_buffer_new_and_alloc (context->codec_priv_size);
|
|
memcpy (GST_BUFFER_DATA (priv), context->codec_priv,
|
|
context->codec_priv_size);
|
|
/* assume SBR if samplerate <= 24kHz */
|
|
if (obj_type == 5 || (freq_index >= 6 && freq_index != 15) ||
|
|
(context->codec_priv_size == (5 + explicit_freq_bytes))) {
|
|
audiocontext->samplerate *= 2;
|
|
}
|
|
} else {
|
|
GST_WARNING ("Opaque A_AAC codec ID, but no codec private data");
|
|
/* just try this and see what happens ... */
|
|
codec_id = GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4;
|
|
}
|
|
}
|
|
|
|
/* make up decoder-specific data if it is not supplied */
|
|
if (priv == NULL) {
|
|
priv = gst_buffer_new_and_alloc (5);
|
|
data = GST_BUFFER_DATA (priv);
|
|
rate_idx = aac_rate_idx (audiocontext->samplerate);
|
|
profile = aac_profile_idx (codec_id);
|
|
|
|
data[0] = ((profile + 1) << 3) | ((rate_idx & 0xE) >> 1);
|
|
data[1] = ((rate_idx & 0x1) << 7) | (audiocontext->channels << 3);
|
|
GST_BUFFER_SIZE (priv) = 2;
|
|
}
|
|
|
|
if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG2,
|
|
strlen (GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG2))) {
|
|
mpegversion = 2;
|
|
} else if (!strncmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4,
|
|
strlen (GST_MATROSKA_CODEC_ID_AUDIO_AAC_MPEG4))) {
|
|
mpegversion = 4;
|
|
|
|
if (g_strrstr (codec_id, "SBR")) {
|
|
/* HE-AAC (aka SBR AAC) */
|
|
audiocontext->samplerate *= 2;
|
|
rate_idx = aac_rate_idx (audiocontext->samplerate);
|
|
data[2] = AAC_SYNC_EXTENSION_TYPE >> 3;
|
|
data[3] = ((AAC_SYNC_EXTENSION_TYPE & 0x07) << 5) | 5;
|
|
data[4] = (1 << 7) | (rate_idx << 3);
|
|
GST_BUFFER_SIZE (priv) = 5;
|
|
}
|
|
} else {
|
|
g_assert_not_reached ();
|
|
}
|
|
|
|
caps = gst_caps_new_simple ("audio/mpeg",
|
|
"mpegversion", G_TYPE_INT, mpegversion,
|
|
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
if (priv) {
|
|
gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL);
|
|
}
|
|
*codec_name = g_strdup_printf ("MPEG-%d AAC audio", mpegversion);
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_TTA)) {
|
|
caps = gst_caps_new_simple ("audio/x-tta",
|
|
"width", G_TYPE_INT, audiocontext->bitdepth, NULL);
|
|
*codec_name = g_strdup ("TTA audio");
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_WAVPACK4)) {
|
|
caps = gst_caps_new_simple ("audio/x-wavpack",
|
|
"width", G_TYPE_INT, audiocontext->bitdepth,
|
|
"framed", G_TYPE_BOOLEAN, TRUE, NULL);
|
|
*codec_name = g_strdup ("Wavpack audio");
|
|
context->postprocess_frame = gst_matroska_demux_add_wvpk_header;
|
|
audiocontext->wvpk_block_index = 0;
|
|
} else if ((!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4)) ||
|
|
(!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4)) ||
|
|
(!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_COOK))) {
|
|
gint raversion = -1;
|
|
|
|
if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_14_4))
|
|
raversion = 1;
|
|
else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_COOK))
|
|
raversion = 8;
|
|
else
|
|
raversion = 2;
|
|
|
|
caps = gst_caps_new_simple ("audio/x-pn-realaudio",
|
|
"raversion", G_TYPE_INT, raversion, NULL);
|
|
/* Extract extra information from caps, mapping varies based on codec */
|
|
if (data && (size >= 0x50)) {
|
|
GstBuffer *priv;
|
|
guint flavor;
|
|
guint packet_size;
|
|
guint height;
|
|
guint leaf_size;
|
|
guint sample_width;
|
|
guint extra_data_size;
|
|
|
|
GST_ERROR ("real audio raversion:%d", raversion);
|
|
if (raversion == 8) {
|
|
/* COOK */
|
|
flavor = GST_READ_UINT16_BE (data + 22);
|
|
packet_size = GST_READ_UINT32_BE (data + 24);
|
|
height = GST_READ_UINT16_BE (data + 40);
|
|
leaf_size = GST_READ_UINT16_BE (data + 44);
|
|
sample_width = GST_READ_UINT16_BE (data + 58);
|
|
extra_data_size = GST_READ_UINT32_BE (data + 74);
|
|
|
|
GST_ERROR
|
|
("flavor:%d, packet_size:%d, height:%d, leaf_size:%d, sample_width:%d, extra_data_size:%d",
|
|
flavor, packet_size, height, leaf_size, sample_width,
|
|
extra_data_size);
|
|
gst_caps_set_simple (caps, "flavor", G_TYPE_INT, flavor, "packet_size",
|
|
G_TYPE_INT, packet_size, "height", G_TYPE_INT, height, "leaf_size",
|
|
G_TYPE_INT, leaf_size, "width", G_TYPE_INT, sample_width, NULL);
|
|
|
|
if ((size - 78) >= extra_data_size) {
|
|
priv = gst_buffer_new_and_alloc (extra_data_size);
|
|
memcpy (GST_BUFFER_DATA (priv), data + 78, extra_data_size);
|
|
gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, priv, NULL);
|
|
gst_buffer_unref (priv);
|
|
}
|
|
}
|
|
}
|
|
|
|
*codec_name = g_strdup_printf ("RealAudio %d.0", raversion);
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_SIPR)) {
|
|
caps = gst_caps_new_simple ("audio/x-sipro", NULL);
|
|
*codec_name = g_strdup ("Sipro/ACELP.NET Voice Codec");
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_RALF)) {
|
|
caps = gst_caps_new_simple ("audio/x-ralf-mpeg4-generic", NULL);
|
|
*codec_name = g_strdup ("Real Audio Lossless");
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_AUDIO_REAL_ATRC)) {
|
|
caps = gst_caps_new_simple ("audio/x-vnd.sony.atrac3", NULL);
|
|
*codec_name = g_strdup ("Sony ATRAC3");
|
|
} else {
|
|
GST_WARNING ("Unknown codec '%s', cannot build Caps", codec_id);
|
|
return NULL;
|
|
}
|
|
|
|
if (caps != NULL) {
|
|
if (audiocontext->samplerate > 0 && audiocontext->channels > 0) {
|
|
gint i;
|
|
|
|
for (i = 0; i < gst_caps_get_size (caps); i++) {
|
|
gst_structure_set (gst_caps_get_structure (caps, i),
|
|
"channels", G_TYPE_INT, audiocontext->channels,
|
|
"rate", G_TYPE_INT, audiocontext->samplerate, NULL);
|
|
}
|
|
}
|
|
|
|
gst_caps_do_simplify (caps);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
static GstCaps *
|
|
gst_matroska_demux_subtitle_caps (GstMatroskaTrackSubtitleContext *
|
|
subtitlecontext, const gchar * codec_id, gpointer data, guint size)
|
|
{
|
|
GstCaps *caps = NULL;
|
|
GstMatroskaTrackContext *context =
|
|
(GstMatroskaTrackContext *) subtitlecontext;
|
|
|
|
/* for backwards compatibility */
|
|
if (!g_ascii_strcasecmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_ASCII))
|
|
codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_UTF8;
|
|
else if (!g_ascii_strcasecmp (codec_id, "S_SSA"))
|
|
codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_SSA;
|
|
else if (!g_ascii_strcasecmp (codec_id, "S_ASS"))
|
|
codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_ASS;
|
|
else if (!g_ascii_strcasecmp (codec_id, "S_USF"))
|
|
codec_id = GST_MATROSKA_CODEC_ID_SUBTITLE_USF;
|
|
|
|
/* TODO: Add GST_MATROSKA_CODEC_ID_SUBTITLE_BMP support
|
|
* Check if we have to do something with codec_private */
|
|
if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_UTF8)) {
|
|
caps = gst_caps_new_simple ("text/plain", NULL);
|
|
context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer;
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_SSA)) {
|
|
caps = gst_caps_new_simple ("application/x-ssa", NULL);
|
|
context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer;
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_ASS)) {
|
|
caps = gst_caps_new_simple ("application/x-ass", NULL);
|
|
context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer;
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_USF)) {
|
|
caps = gst_caps_new_simple ("application/x-usf", NULL);
|
|
context->postprocess_frame = gst_matroska_demux_check_subtitle_buffer;
|
|
} else if (!strcmp (codec_id, GST_MATROSKA_CODEC_ID_SUBTITLE_VOBSUB)) {
|
|
caps = gst_caps_new_simple ("video/x-dvd-subpicture", NULL);
|
|
((GstMatroskaTrackContext *) subtitlecontext)->send_dvd_event = TRUE;
|
|
} else {
|
|
GST_DEBUG ("Unknown subtitle stream: codec_id='%s'", codec_id);
|
|
caps = gst_caps_new_simple ("application/x-subtitle-unknown", NULL);
|
|
}
|
|
|
|
if (data != NULL && size > 0) {
|
|
GstBuffer *buf;
|
|
|
|
buf = gst_buffer_new_and_alloc (size);
|
|
memcpy (GST_BUFFER_DATA (buf), data, size);
|
|
gst_caps_set_simple (caps, "codec_data", GST_TYPE_BUFFER, buf, NULL);
|
|
gst_buffer_unref (buf);
|
|
}
|
|
|
|
return caps;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_matroska_demux_change_state (GstElement * element,
|
|
GstStateChange transition)
|
|
{
|
|
GstMatroskaDemux *demux = GST_MATROSKA_DEMUX (element);
|
|
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
|
|
|
|
/* handle upwards state changes here */
|
|
switch (transition) {
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
/* handle downwards state changes */
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_PAUSED_TO_READY:
|
|
gst_matroska_demux_reset (GST_ELEMENT (demux));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
gboolean
|
|
gst_matroska_demux_plugin_init (GstPlugin * plugin)
|
|
{
|
|
gst_riff_init ();
|
|
|
|
/* create an elementfactory for the matroska_demux element */
|
|
if (!gst_element_register (plugin, "matroskademux",
|
|
GST_RANK_PRIMARY, GST_TYPE_MATROSKA_DEMUX))
|
|
return FALSE;
|
|
|
|
return TRUE;
|
|
}
|