swfdec/swfdec_audio_stream.h

   1 /* Swfdec
   2  * Copyright (C) 2003-2006 David Schleef <ds@schleef.org>
   3  *               2005-2006 Eric Anholt <eric@anholt.net>
   4  *               2006-2008 Benjamin Otte <otte@gnome.org>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 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  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  19  * Boston, MA  02110-1301  USA
  20  */
  21
  22 #ifndef _SWFDEC_AUDIO_STREAM_H_
  23 #define _SWFDEC_AUDIO_STREAM_H_
  24
  25 #include <swfdec/swfdec_audio_decoder.h>
  26 #include <swfdec/swfdec_audio_internal.h>
  27
  28 G_BEGIN_DECLS
  29
  30 typedef struct _SwfdecAudioStream SwfdecAudioStream;
  31 typedef struct _SwfdecAudioStreamClass SwfdecAudioStreamClass;
  32
  33 #define SWFDEC_TYPE_AUDIO_STREAM                    (swfdec_audio_stream_get_type())
  34 #define SWFDEC_IS_AUDIO_STREAM(obj)                 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SWFDEC_TYPE_AUDIO_STREAM))
  35 #define SWFDEC_IS_AUDIO_STREAM_CLASS(klass)         (G_TYPE_CHECK_CLASS_TYPE ((klass), SWFDEC_TYPE_AUDIO_STREAM))
  36 #define SWFDEC_AUDIO_STREAM(obj)                    (G_TYPE_CHECK_INSTANCE_CAST ((obj), SWFDEC_TYPE_AUDIO_STREAM, SwfdecAudioStream))
  37 #define SWFDEC_AUDIO_STREAM_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST ((klass), SWFDEC_TYPE_AUDIO_STREAM, SwfdecAudioStreamClass))
  38 #define SWFDEC_AUDIO_STREAM_GET_CLASS(obj)          (G_TYPE_INSTANCE_GET_CLASS ((obj), SWFDEC_TYPE_AUDIO_STREAM, SwfdecAudioStreamClass))
  39
  40 struct _SwfdecAudioStream
  41 {
  42   SwfdecAudio           audio;
  43
  44   SwfdecAudioDecoder *  decoder;        /* decoder in use */
  45   GQueue *              queue;          /* all the samples we've decoded so far */
  46   gsize                 queue_size;     /* size of queue in samples */
  47   gboolean              done;           /* no more data will arrive */
  48   gboolean              buffering;      /* pull vfunc returned NULL */
  49 };
  50
  51 struct _SwfdecAudioStreamClass
  52 {
  53   SwfdecAudioClass      audio_class;
  54
  55   /* get another buffer if available */
  56   SwfdecBuffer *        (* pull)                        (SwfdecAudioStream *    stream);
  57 };
  58
  59 GType           swfdec_audio_stream_get_type            (void);
  60
  61 /* to be called from pull callback */
  62 void            swfdec_audio_stream_use_decoder         (SwfdecAudioStream *    stream,
  63                                                          guint                  codec,
  64                                                          SwfdecAudioFormat      format);
  65 void            swfdec_audio_stream_done                (SwfdecAudioStream *    stream);
  66
  67 G_END_DECLS
  68 #endif