gstreamer/gst/matroska/matroska-demux.h
Mark Nauwelaerts 680eb51b68 matroskademux: additional parse recovery
In particular, upon parse failure in one cluster, we may forego remaining
content and try resuming from next cluster onwards.

Fixes #620790.
2010-09-06 14:45:30 +02:00

141 lines
4.3 KiB
C

/* GStreamer Matroska muxer/demuxer
* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
*
* 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., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_MATROSKA_DEMUX_H__
#define __GST_MATROSKA_DEMUX_H__
#include <gst/gst.h>
#include <gst/base/gstadapter.h>
#include "ebml-read.h"
#include "matroska-ids.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 enum {
GST_MATROSKA_DEMUX_STATE_START,
GST_MATROSKA_DEMUX_STATE_SEGMENT,
GST_MATROSKA_DEMUX_STATE_HEADER,
GST_MATROSKA_DEMUX_STATE_DATA,
GST_MATROSKA_DEMUX_STATE_SEEK,
GST_MATROSKA_DEMUX_STATE_SCANNING
} GstMatroskaDemuxState;
typedef struct _GstMatroskaDemux {
GstElement parent;
/* < private > */
GstIndex *element_index;
gint element_index_writer_id;
/* pads */
GstPad *sinkpad;
GPtrArray *src;
GstClock *clock;
guint num_streams;
guint num_v_streams;
guint num_a_streams;
guint num_t_streams;
/* metadata */
gchar *muxing_app;
gchar *writing_app;
gint64 created;
/* state */
gboolean streaming;
GstMatroskaDemuxState state;
guint level_up;
guint64 seek_block;
gboolean seek_first;
/* did we parse cues/tracks/segmentinfo already? */
gboolean index_parsed;
gboolean tracks_parsed;
gboolean segmentinfo_parsed;
gboolean attachments_parsed;
GList *tags_parsed;
GList *seek_parsed;
/* start-of-segment */
guint64 ebml_segment_start;
/* a cue (index) table */
GArray *index;
/* timescale in the file */
guint64 time_scale;
/* keeping track of playback position */
GstSegment segment;
gboolean segment_running;
GstClockTime last_stop_end;
GstEvent *close_segment;
GstEvent *new_segment;
GstTagList *global_tags;
/* pull mode caching */
GstBuffer *cached_buffer;
/* push and pull mode */
guint64 offset;
/* some state saving */
GstClockTime cluster_time;
guint64 cluster_offset;
guint64 first_cluster_offset;
guint64 next_cluster_offset;
/* push based mode usual suspects */
GstAdapter *adapter;
/* index stuff */
gboolean seekable;
gboolean building_index;
guint64 index_offset;
GstEvent *seek_event;
gboolean need_newsegment;
/* reverse playback */
GArray *seek_index;
gint seek_entry;
} GstMatroskaDemux;
typedef struct _GstMatroskaDemuxClass {
GstElementClass parent;
} GstMatroskaDemuxClass;
gboolean gst_matroska_demux_plugin_init (GstPlugin *plugin);
G_END_DECLS
#endif /* __GST_MATROSKA_DEMUX_H__ */