gst/matroska/matroska-demux.h

   1 /* GStreamer Matroska muxer/demuxer
   2  * (c) 2003 Ronald Bultje <rbultje@ronald.bitfreak.net>
   3  * (c) 2011 Debarshi Ray <rishi@gnu.org>
   4  *
   5  * matroska-demux.h: matroska file/stream demuxer definition
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Library General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Library General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Library General Public
  18  * License along with this library; if not, write to the
  19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  20  * Boston, MA 02111-1307, USA.
  21  */
  22
  23 #ifndef __GST_MATROSKA_DEMUX_H__
  24 #define __GST_MATROSKA_DEMUX_H__
  25
  26 #include <gst/gst.h>
  27
  28 #include "ebml-read.h"
  29 #include "matroska-ids.h"
  30 #include "matroska-read-common.h"
  31
  32 G_BEGIN_DECLS
  33
  34 #define GST_TYPE_MATROSKA_DEMUX \
  35   (gst_matroska_demux_get_type ())
  36 #define GST_MATROSKA_DEMUX(obj) \
  37   (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MATROSKA_DEMUX, GstMatroskaDemux))
  38 #define GST_MATROSKA_DEMUX_CLASS(klass) \
  39   (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MATROSKA_DEMUX, GstMatroskaDemuxClass))
  40 #define GST_IS_MATROSKA_DEMUX(obj) \
  41   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MATROSKA_DEMUX))
  42 #define GST_IS_MATROSKA_DEMUX_CLASS(klass) \
  43   (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MATROSKA_DEMUX))
  44
  45 typedef struct _GstMatroskaDemux {
  46   GstElement              parent;
  47
  48   /* < private > */
  49
  50   GstMatroskaReadCommon    common;
  51
  52   /* pads */
  53   GstClock                *clock;
  54   guint                    num_v_streams;
  55   guint                    num_a_streams;
  56   guint                    num_t_streams;
  57
  58   /* metadata */
  59   gchar                   *muxing_app;
  60   gchar                   *writing_app;
  61   gint64                   created;
  62
  63   /* state */
  64   gboolean                 streaming;
  65   guint                    level_up;
  66   guint64                  seek_block;
  67   gboolean                 seek_first;
  68
  69   /* did we parse cues/tracks/segmentinfo already? */
  70   gboolean                 tracks_parsed;
  71   gboolean                 segmentinfo_parsed;
  72   gboolean                 attachments_parsed;
  73   GList                   *tags_parsed;
  74   GList                   *seek_parsed;
  75
  76   /* cluster positions (optional) */
  77   GArray                  *clusters;
  78
  79   /* keeping track of playback position */
  80   GstSegment               segment;
  81   gboolean                 segment_running;
  82   GstClockTime             last_stop_end;
  83
  84   GstEvent                *close_segment;
  85   GstEvent                *new_segment;
  86   GstTagList              *global_tags;
  87
  88   /* some state saving */
  89   GstClockTime             cluster_time;
  90   guint64                  cluster_offset;
  91   guint64                  first_cluster_offset;
  92   guint64                  next_cluster_offset;
  93
  94   /* index stuff */
  95   gboolean                 seekable;
  96   gboolean                 building_index;
  97   guint64                  index_offset;
  98   GstEvent                *seek_event;
  99   gboolean                 need_newsegment;
 100
 101   /* reverse playback */
 102   GArray                  *seek_index;
 103   gint                     seek_entry;
 104 } GstMatroskaDemux;
 105
 106 typedef struct _GstMatroskaDemuxClass {
 107   GstElementClass parent;
 108 } GstMatroskaDemuxClass;
 109
 110 gboolean gst_matroska_demux_plugin_init (GstPlugin *plugin);
 111
 112 G_END_DECLS
 113
 114 #endif /* __GST_MATROSKA_DEMUX_H__ */