gst/matroska/matroska-demux.h

   1 /* GStreamer Matroska muxer/demuxer
   2  * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
   3  *
   4  * matroska-demux.h: matroska file/stream demuxer definition
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Library General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Library General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Library General Public
  17  * License along with this library; if not, write to the
  18  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19  * Boston, MA 02111-1307, USA.
  20  */
  21
  22 #ifndef __GST_MATROSKA_DEMUX_H__
  23 #define __GST_MATROSKA_DEMUX_H__
  24
  25 #include <gst/gst.h>
  26
  27 #include "ebml-read.h"
  28 #include "matroska-ids.h"
  29
  30 G_BEGIN_DECLS
  31
  32 #define GST_TYPE_MATROSKA_DEMUX \
  33   (gst_matroska_demux_get_type ())
  34 #define GST_MATROSKA_DEMUX(obj) \
  35   (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MATROSKA_DEMUX, GstMatroskaDemux))
  36 #define GST_MATROSKA_DEMUX_CLASS(klass) \
  37   (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MATROSKA_DEMUX, GstMatroskaDemuxClass))
  38 #define GST_IS_MATROSKA_DEMUX(obj) \
  39   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MATROSKA_DEMUX))
  40 #define GST_IS_MATROSKA_DEMUX_CLASS(klass) \
  41   (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MATROSKA_DEMUX))
  42
  43 typedef enum {
  44   GST_MATROSKA_DEMUX_STATE_START,
  45   GST_MATROSKA_DEMUX_STATE_HEADER,
  46   GST_MATROSKA_DEMUX_STATE_DATA
  47 } GstMatroskaDemuxState;
  48
  49 typedef struct _GstMatroskaDemuxIndex {
  50   guint64        pos;   /* of the corresponding *cluster*! */
  51   guint16        track; /* reference to 'num' */
  52   guint64        time;  /* in nanoseconds */
  53 } GstMatroskaDemuxIndex;
  54
  55 typedef struct _GstMatroskaDemux {
  56   GstEbmlRead              parent;
  57
  58   /* pads */
  59   GstPad                  *sinkpad;
  60   GPtrArray               *src;
  61   GstClock                *clock;
  62   guint                    num_streams;
  63   guint                    num_v_streams;
  64   guint                    num_a_streams;
  65   guint                    num_t_streams;
  66
  67   /* metadata */
  68   gchar                   *muxing_app;
  69   gchar                   *writing_app;
  70   gint64                   created;
  71
  72   /* state */
  73   GstMatroskaDemuxState    state;
  74   guint                    level_up;
  75
  76   /* did we parse cues/tracks/segmentinfo already? */
  77   gboolean                 index_parsed;
  78   gboolean                 tracks_parsed;
  79   gboolean                 segmentinfo_parsed;
  80   gboolean                 attachments_parsed;
  81   GList                   *tags_parsed;
  82
  83   /* start-of-segment */
  84   guint64                  ebml_segment_start;
  85
  86   /* a cue (index) table */
  87   GArray                  *index;
  88
  89   /* timescale in the file */
  90   guint64                  time_scale;
  91
  92   /* keeping track of playback position */
  93   GstSegment               segment;
  94   gboolean                 segment_running;
  95   gint64                   duration;
  96 } GstMatroskaDemux;
  97
  98 typedef struct _GstMatroskaDemuxClass {
  99   GstEbmlReadClass parent;
 100 } GstMatroskaDemuxClass;
 101
 102 gboolean gst_matroska_demux_plugin_init (GstPlugin *plugin);
 103
 104 G_END_DECLS
 105
 106 #endif /* __GST_MATROSKA_DEMUX_H__ */