gstreamer/gst/matroska/matroska-mux.h
Zaheer Abbas Merali 45f711044f matroskamux: change 2 second limit per cluster
Start cluster at every keyframe or when we would overflow the previous
cluster's relative timestamp field. This would avoid as much as possible
starting clusters at non-keyframes.
2010-06-10 01:32:15 +02:00

138 lines
3.8 KiB
C

/* GStreamer Matroska muxer/demuxer
* (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
* (c) 2005 Michal Benes <michal.benes@xeris.cz>
*
* matroska-mux.h: matroska file/stream muxer object types
*
* 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_MUX_H__
#define __GST_MATROSKA_MUX_H__
#include <gst/gst.h>
#include <gst/base/gstcollectpads.h>
#include "ebml-write.h"
#include "matroska-ids.h"
G_BEGIN_DECLS
#define GST_TYPE_MATROSKA_MUX \
(gst_matroska_mux_get_type ())
#define GST_MATROSKA_MUX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MATROSKA_MUX, GstMatroskaMux))
#define GST_MATROSKA_MUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MATROSKA_MUX, GstMatroskaMuxClass))
#define GST_IS_MATROSKA_MUX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MATROSKA_MUX))
#define GST_IS_MATROSKA_MUX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MATROSKA_MUX))
typedef enum {
GST_MATROSKA_MUX_STATE_START,
GST_MATROSKA_MUX_STATE_HEADER,
GST_MATROSKA_MUX_STATE_DATA,
} GstMatroskaMuxState;
typedef struct _GstMatroskaMetaSeekIndex {
guint32 id;
guint64 pos;
} GstMatroskaMetaSeekIndex;
/* all information needed for one matroska stream */
typedef struct
{
GstCollectData collect; /* we extend the CollectData */
GstMatroskaTrackContext *track;
GstBuffer *buffer; /* the queued buffer for this pad */
guint64 duration;
GstClockTime start_ts;
GstClockTime end_ts; /* last timestamp + (if available) duration */
}
GstMatroskaPad;
typedef struct _GstMatroskaMux {
GstElement element;
/* < private > */
/* pads */
GstPad *srcpad;
GstCollectPads *collect;
GstPadEventFunction collect_event;
GstEbmlWrite *ebml_write;
guint num_streams,
num_v_streams, num_a_streams, num_t_streams;
/* Application name (for the writing application header element) */
gchar *writing_app;
/* EBML DocType. */
const gchar *doctype;
/* DocType version. */
guint doctype_version;
/* state */
GstMatroskaMuxState state;
/* a cue (index) table */
GstMatroskaIndex *index;
guint num_indexes;
GstClockTimeDiff min_index_interval;
gboolean streamable;
/* timescale in the file */
guint64 time_scale;
/* based on timescale, limit of nanoseconds you can have in a cluster */
guint64 max_cluster_duration;
/* length, position (time, ns) */
guint64 duration;
/* byte-positions of master-elements (for replacing contents) */
guint64 segment_pos,
seekhead_pos,
cues_pos,
tags_pos,
info_pos,
tracks_pos,
duration_pos,
meta_pos;
guint64 segment_master;
/* current cluster */
guint64 cluster,
cluster_time,
cluster_pos,
prev_cluster_size;
} GstMatroskaMux;
typedef struct _GstMatroskaMuxClass {
GstElementClass parent;
} GstMatroskaMuxClass;
GType gst_matroska_mux_get_type (void);
G_END_DECLS
#endif /* __GST_MATROSKA_MUX_H__ */