mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-03 16:09:39 +00:00
8c7579e129
So we can use matroskademux for dash webm dash streams. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3159>
146 lines
5.2 KiB
C
146 lines
5.2 KiB
C
/* GStreamer Matroska muxer/demuxer
|
|
* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
|
|
* (c) 2011 Debarshi Ray <rishi@gnu.org>
|
|
*
|
|
* matroska-demux.h: matroska file/stream demuxer definition
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Library General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Library General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Library General Public
|
|
* License along with this library; if not, write to the
|
|
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __GST_MATROSKA_DEMUX_H__
|
|
#define __GST_MATROSKA_DEMUX_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstflowcombiner.h>
|
|
|
|
#include "ebml-read.h"
|
|
#include "matroska-ids.h"
|
|
#include "matroska-read-common.h"
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_MATROSKA_DEMUX \
|
|
(gst_matroska_demux_get_type ())
|
|
#define GST_MATROSKA_DEMUX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MATROSKA_DEMUX, GstMatroskaDemux))
|
|
#define GST_MATROSKA_DEMUX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MATROSKA_DEMUX, GstMatroskaDemuxClass))
|
|
#define GST_IS_MATROSKA_DEMUX(obj) \
|
|
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MATROSKA_DEMUX))
|
|
#define GST_IS_MATROSKA_DEMUX_CLASS(klass) \
|
|
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MATROSKA_DEMUX))
|
|
|
|
typedef struct _GstMatroskaDemux {
|
|
GstElement parent;
|
|
|
|
/* < private > */
|
|
|
|
GstMatroskaReadCommon common;
|
|
|
|
/* pads */
|
|
GstClock *clock;
|
|
gboolean have_nonintraonly_v_streams;
|
|
guint num_v_streams;
|
|
guint num_a_streams;
|
|
guint num_t_streams;
|
|
|
|
guint group_id;
|
|
gboolean have_group_id;
|
|
|
|
GstFlowCombiner *flowcombiner;
|
|
|
|
/* state */
|
|
gboolean streaming;
|
|
guint64 seek_block;
|
|
gboolean seek_first;
|
|
|
|
/* did we parse cues/tracks/segmentinfo already? */
|
|
GList *seek_parsed;
|
|
/* Offset of the last Tracks element parsed,
|
|
* to avoid reparsing or recreating tracks unecessarily */
|
|
guint64 tracks_ebml_offset;
|
|
|
|
/* cluster positions (optional) */
|
|
GArray *clusters;
|
|
|
|
/* keeping track of playback position */
|
|
GstClockTime last_stop_end;
|
|
GstClockTime stream_start_time;
|
|
|
|
/* Stop time for reverse playback */
|
|
GstClockTime to_time;
|
|
GstEvent *new_segment;
|
|
|
|
/* some state saving */
|
|
GstClockTime cluster_time;
|
|
guint64 cluster_offset;
|
|
guint64 cluster_prevsize; /* 0 if unknown */
|
|
guint64 first_cluster_offset;
|
|
guint64 next_cluster_offset;
|
|
GstClockTime requested_seek_time;
|
|
guint64 seek_offset;
|
|
GstClockTime audio_lead_in_ts;
|
|
|
|
/* alternative duration; optionally obtained from last cluster */
|
|
guint64 last_cluster_offset;
|
|
GstClockTime stream_last_time;
|
|
|
|
/* index stuff */
|
|
gboolean seekable;
|
|
gboolean building_index;
|
|
guint64 index_offset;
|
|
GstEvent *seek_event;
|
|
GstEvent *deferred_seek_event;
|
|
GstPad *deferred_seek_pad;
|
|
gboolean need_segment;
|
|
guint32 segment_seqnum;
|
|
/* If TRUE, matroskamux received upstream newsegment in TIME format
|
|
* which likely means that upstream is driving the pipeline (such as
|
|
* adaptive demuxers) */
|
|
gboolean upstream_format_is_time;
|
|
|
|
/* reverse playback */
|
|
GArray *seek_index;
|
|
gint seek_entry;
|
|
|
|
gboolean seen_cluster_prevsize; /* We track this because the
|
|
* first cluster won't have
|
|
* this set, so we can't just
|
|
* check cluster_prevsize to
|
|
* determine if it's there
|
|
* or not. We assume if one
|
|
* cluster has it, all but
|
|
* the first will have it. */
|
|
|
|
guint max_backtrack_distance; /* in seconds (0 = don't backtrack) */
|
|
|
|
/* gap handling */
|
|
guint64 max_gap_time;
|
|
|
|
/* for non-finalized files, with invalid segment duration */
|
|
gboolean invalid_duration;
|
|
|
|
/* Cached upstream length (default G_MAXUINT64) */
|
|
guint64 cached_length;
|
|
} GstMatroskaDemux;
|
|
|
|
typedef struct _GstMatroskaDemuxClass {
|
|
GstElementClass parent;
|
|
} GstMatroskaDemuxClass;
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_MATROSKA_DEMUX_H__ */
|