libswfdec/swfdec_audio_internal.h

   1 /* Swfdec
   2  * Copyright (C) 2003-2006 David Schleef <ds@schleef.org>
   3  *               2005-2006 Eric Anholt <eric@anholt.net>
   4  *               2006-2007 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_INTERNAL_H_
  23 #define _SWFDEC_AUDIO_INTERNAL_H_
  24
  25 #include <libswfdec/swfdec.h>
  26 #include <libswfdec/swfdec_audio.h>
  27 #include <libswfdec/swfdec_bits.h>
  28 #include <libswfdec/swfdec_types.h>
  29
  30 G_BEGIN_DECLS
  31
  32 typedef guint SwfdecAudioFormat;
  33 #define SWFDEC_IS_AUDIO_FORMAT(format) ((format) <= 0xF)
  34
  35
  36 struct _SwfdecAudio {
  37   GObject               object;
  38
  39   SwfdecPlayer *        player;         /* the player that plays us */
  40   gboolean              added;          /* set to TRUE after the added signal has been emitted */
  41 };
  42
  43 struct _SwfdecAudioClass {
  44   GObjectClass          object_class;
  45
  46   guint                 (* iterate)                     (SwfdecAudio *  audio,
  47                                                          guint          n_samples);
  48   void                  (* render)                      (SwfdecAudio *  audio,
  49                                                          gint16 *       dest,
  50                                                          guint          start,
  51                                                          guint          n_samples);
  52 };
  53
  54 void                    swfdec_audio_add                (SwfdecAudio *  audio,
  55                                                          SwfdecPlayer * player);
  56 void                    swfdec_audio_remove             (SwfdecAudio *  audio);
  57
  58 guint                   swfdec_audio_iterate            (SwfdecAudio *  audio,
  59                                                          guint          n_samples);
  60
  61 SwfdecAudioFormat       swfdec_audio_format_parse       (SwfdecBits *           bits);
  62 SwfdecAudioFormat       swfdec_audio_format_new         (guint                  rate,
  63                                                          guint                  channels,
  64                                                          gboolean               is_16bit);
  65 guint                   swfdec_audio_format_get_channels(SwfdecAudioFormat      format);
  66 gboolean                swfdec_audio_format_is_16bit    (SwfdecAudioFormat      format);
  67 guint                   swfdec_audio_format_get_rate    (SwfdecAudioFormat      format);
  68 guint                   swfdec_audio_format_get_granularity
  69                                                         (SwfdecAudioFormat      format);
  70 const char *            swfdec_audio_format_to_string   (SwfdecAudioFormat      format);
  71
  72
  73 G_END_DECLS
  74 #endif