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 #include <gst/base/gstadapter.h>
  28
  29 #include "ebml-read.h"
  30 #include "matroska-ids.h"
  31 #include "matroska-read-common.h"
  32
  33 G_BEGIN_DECLS
  34
  35 #define GST_TYPE_MATROSKA_DEMUX \
  36   (gst_matroska_demux_get_type ())
  37 #define GST_MATROSKA_DEMUX(obj) \
  38   (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_MATROSKA_DEMUX, GstMatroskaDemux))
  39 #define GST_MATROSKA_DEMUX_CLASS(klass) \
  40   (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_MATROSKA_DEMUX, GstMatroskaDemuxClass))
  41 #define GST_IS_MATROSKA_DEMUX(obj) \
  42   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_MATROSKA_DEMUX))
  43 #define GST_IS_MATROSKA_DEMUX_CLASS(klass) \
  44   (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_MATROSKA_DEMUX))
  45
  46 typedef struct _GstMatroskaDemux {
  47   GstElement              parent;
  48
  49   /* < private > */
  50
  51   GstMatroskaReadCommon    common;
  52
  53   /* pads */
  54   GstPad                  *sinkpad;
  55   GstClock                *clock;
  56   guint                    num_v_streams;
  57   guint                    num_a_streams;
  58   guint                    num_t_streams;
  59
  60   /* metadata */
  61   gchar                   *muxing_app;
  62   gchar                   *writing_app;
  63   gint64                   created;
  64
  65   /* state */
  66   gboolean                 streaming;
  67   guint                    level_up;
  68   guint64                  seek_block;
  69   gboolean                 seek_first;
  70
  71   /* did we parse cues/tracks/segmentinfo already? */
  72   gboolean                 tracks_parsed;
  73   gboolean                 segmentinfo_parsed;
  74   gboolean                 attachments_parsed;
  75   GList                   *tags_parsed;
  76   GList                   *seek_parsed;
  77
  78   /* cluster positions (optional) */
  79   GArray                  *clusters;
  80
  81   /* keeping track of playback position */
  82   GstSegment               segment;
  83   gboolean                 segment_running;
  84   GstClockTime             last_stop_end;
  85
  86   GstEvent                *close_segment;
  87   GstEvent                *new_segment;
  88   GstTagList              *global_tags;
  89
  90   /* pull mode caching */
  91   GstBuffer *cached_buffer;
  92
  93   /* push and pull mode */
  94   guint64                  offset;
  95   /* some state saving */
  96   GstClockTime             cluster_time;
  97   guint64                  cluster_offset;
  98   guint64                  first_cluster_offset;
  99   guint64                  next_cluster_offset;
 100
 101   /* push based mode usual suspects */
 102   GstAdapter              *adapter;
 103   /* index stuff */
 104   gboolean                 seekable;
 105   gboolean                 building_index;
 106   guint64                  index_offset;
 107   GstEvent                *seek_event;
 108   gboolean                 need_newsegment;
 109
 110   /* reverse playback */
 111   GArray                  *seek_index;
 112   gint                     seek_entry;
 113 } GstMatroskaDemux;
 114
 115 typedef struct _GstMatroskaDemuxClass {
 116   GstElementClass parent;
 117 } GstMatroskaDemuxClass;
 118
 119 gboolean gst_matroska_demux_plugin_init (GstPlugin *plugin);
 120
 121 G_END_DECLS
 122
 123 #endif /* __GST_MATROSKA_DEMUX_H__ */