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/* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, 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;
typedef gboolean (*GstMatroskaCapsFunc) (GstPad *pad, GstCaps *caps);
typedef struct _GstMatroskaMux GstMatroskaMux;
/* all information needed for one matroska stream */
typedef struct
{
GstCollectData collect; /* we extend the CollectData */
GstMatroskaCapsFunc capsfunc;
GstMatroskaTrackContext *track;
GstMatroskaMux *mux;
GstTagList *tags;
GstClockTime start_ts;
GstClockTime end_ts; /* last timestamp + (if available) duration */
guint64 default_duration_scaled;
}
GstMatroskaPad;
struct _GstMatroskaMux {
GstElement element;
/* < private > */
/* pads */
GstPad *srcpad;
GstCollectPads *collect;
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;
/* Date (for the DateUTC header element) */
GDateTime *creation_time;
/* 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;
/* timescale in the file */
guint64 time_scale;
/* minimum and maximum limit of nanoseconds you can have in a cluster */
guint64 max_cluster_duration;
guint64 min_cluster_duration;
/* earliest timestamp (time, ns) if offsetting to zero */
gboolean offset_to_zero;
guint64 cluster_timestamp_offset;
guint64 earliest_time;
/* length, position (time, ns) */
guint64 duration;
/* byte-positions of master-elements (for replacing contents) */
guint64 segment_pos,
seekhead_pos,
cues_pos,
chapters_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;
/* GstForceKeyUnit event */
GstEvent *force_key_unit_event;
/* Internal Toc (adjusted UIDs and title tags removed when processed) */
GstToc *internal_toc;
/* Flag to ease handling of WebM specifics */
gboolean is_webm;
};
typedef struct _GstMatroskaMuxClass {
GstElementClass parent;
} GstMatroskaMuxClass;
GType gst_matroska_mux_get_type (void);
G_END_DECLS
#endif /* __GST_MATROSKA_MUX_H__ */
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