gstreamer/gst/matroska/matroska-demux.h
Edward Hervey cbe56d2331 matroska-demux: Cache upstream length
Instead of constantly querying upstream, just cache the last duration,
and in the unlikelyness we might have gone over query again before
deciding we are EOS.

Cut 15% cpu off matroskademux streaming thread (srsly...)
2014-12-19 10:59:18 +01:00

123 lines
3.8 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;
guint num_v_streams;
guint num_a_streams;
guint num_t_streams;
guint group_id;
gboolean have_group_id;
GstFlowCombiner *flowcombiner;
/* state */
gboolean streaming;
guint level_up;
guint64 seek_block;
gboolean seek_first;
/* did we parse cues/tracks/segmentinfo already? */
gboolean tracks_parsed;
GList *seek_parsed;
/* 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 first_cluster_offset;
guint64 next_cluster_offset;
GstClockTime requested_seek_time;
guint64 seek_offset;
/* index stuff */
gboolean seekable;
gboolean building_index;
guint64 index_offset;
GstEvent *seek_event;
gboolean need_segment;
guint32 segment_seqnum;
/* reverse playback */
GArray *seek_index;
gint seek_entry;
/* 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;
gboolean gst_matroska_demux_plugin_init (GstPlugin *plugin);
G_END_DECLS
#endif /* __GST_MATROSKA_DEMUX_H__ */