swfdec/swfdec_audio_event.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_EVENT_H_
  23 #define _SWFDEC_AUDIO_EVENT_H_
  24
  25 #include <swfdec/swfdec_audio_internal.h>
  26 #include <swfdec/swfdec_sound.h>
  27
  28 G_BEGIN_DECLS
  29
  30 typedef struct _SwfdecAudioEvent SwfdecAudioEvent;
  31 typedef struct _SwfdecAudioEventClass SwfdecAudioEventClass;
  32
  33 #define SWFDEC_TYPE_AUDIO_EVENT                    (swfdec_audio_event_get_type())
  34 #define SWFDEC_IS_AUDIO_EVENT(obj)                 (G_TYPE_CHECK_INSTANCE_TYPE ((obj), SWFDEC_TYPE_AUDIO_EVENT))
  35 #define SWFDEC_IS_AUDIO_EVENT_CLASS(klass)         (G_TYPE_CHECK_CLASS_TYPE ((klass), SWFDEC_TYPE_AUDIO_EVENT))
  36 #define SWFDEC_AUDIO_EVENT(obj)                    (G_TYPE_CHECK_INSTANCE_CAST ((obj), SWFDEC_TYPE_AUDIO_EVENT, SwfdecAudioEvent))
  37 #define SWFDEC_AUDIO_EVENT_CLASS(klass)            (G_TYPE_CHECK_CLASS_CAST ((klass), SWFDEC_TYPE_AUDIO_EVENT, SwfdecAudioEventClass))
  38 #define SWFDEC_AUDIO_EVENT_GET_CLASS(obj)          (G_TYPE_INSTANCE_GET_CLASS ((obj), SWFDEC_TYPE_AUDIO_EVENT, SwfdecAudioEventClass))
  39
  40 struct _SwfdecAudioEvent
  41 {
  42   SwfdecAudio           audio;
  43
  44   /* static data */
  45   SwfdecSound *         sound;                  /* sound we're playing */
  46   gsize                 start_sample;           /* sample at which to start playing */
  47   gsize                 stop_sample;            /* first sample to not play anymore or 0 for playing all */
  48   gsize                 n_loops;                /* amount of times this sample still needs to be played back */
  49   guint                 n_envelopes;            /* amount of points in the envelope */
  50   SwfdecSoundEnvelope * envelope;               /* volume envelope or NULL if none */
  51   /* dynamic data */
  52   SwfdecBuffer *        decoded;                /* the decoded buffer we play back or NULL if failure */
  53   gsize                 offset;                 /* current offset in 44.1kHz */
  54   gsize                 loop;                   /* current loop we're in */
  55   gsize                 n_samples;              /* length of decoded buffer in 44.1kHz samples - can be 0 */
  56 };
  57
  58 struct _SwfdecAudioEventClass
  59 {
  60   SwfdecAudioClass      audio_class;
  61 };
  62
  63 GType           swfdec_audio_event_get_type             (void);
  64
  65 SwfdecAudio *   swfdec_audio_event_new                  (SwfdecPlayer *         player,
  66                                                          SwfdecSound *          sound,
  67                                                          guint                  offset,
  68                                                          guint                  n_loops);
  69 SwfdecAudio *   swfdec_audio_event_new_from_chunk       (SwfdecPlayer *         player,
  70                                                          SwfdecSoundChunk *     chunk);
  71
  72 G_END_DECLS
  73 #endif