swfdec/swfdec_sound_provider.c

   1 /* Swfdec
   2  * Copyright (C) 2008 Benjamin Otte <otte@gnome.org>
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  * Boston, MA  02110-1301  USA
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "swfdec_sound_provider.h"
  25 #include "swfdec_actor.h"
  26 #include "swfdec_debug.h"
  27 #include "swfdec_player_internal.h"
  28
  29 static void
  30 swfdec_sound_provider_base_init (gpointer klass)
  31 {
  32   static gboolean initialized = FALSE;
  33
  34   if (G_UNLIKELY (!initialized)) {
  35     initialized = TRUE;
  36   }
  37 }
  38
  39 GType
  40 swfdec_sound_provider_get_type (void)
  41 {
  42   static GType sound_provider_type = 0;
  43
  44   if (!sound_provider_type) {
  45     static const GTypeInfo sound_provider_info = {
  46       sizeof (SwfdecSoundProviderInterface),
  47       swfdec_sound_provider_base_init,
  48       NULL,
  49       NULL,
  50       NULL,
  51       NULL,
  52       0,
  53       0,
  54       NULL,
  55     };
  56
  57     sound_provider_type = g_type_register_static (G_TYPE_INTERFACE,
  58         "SwfdecSoundProvider", &sound_provider_info, 0);
  59     g_type_interface_add_prerequisite (sound_provider_type, G_TYPE_OBJECT);
  60   }
  61
  62   return sound_provider_type;
  63 }
  64
  65 void
  66 swfdec_sound_provider_start (SwfdecSoundProvider *provider,
  67     SwfdecActor *actor, gsize samples_offset, guint loops)
  68 {
  69   SwfdecSoundProviderInterface *iface;
  70
  71   g_return_if_fail (SWFDEC_IS_SOUND_PROVIDER (provider));
  72   g_return_if_fail (SWFDEC_IS_ACTOR (actor));
  73   g_return_if_fail (loops > 0);
  74
  75   iface = SWFDEC_SOUND_PROVIDER_GET_INTERFACE (provider);
  76   iface->start (provider, actor, samples_offset, loops);
  77 }
  78
  79 void
  80 swfdec_sound_provider_stop (SwfdecSoundProvider *provider, SwfdecActor *actor)
  81 {
  82   SwfdecSoundProviderInterface *iface;
  83
  84   g_return_if_fail (SWFDEC_IS_SOUND_PROVIDER (provider));
  85   g_return_if_fail (SWFDEC_IS_ACTOR (actor));
  86
  87   iface = SWFDEC_SOUND_PROVIDER_GET_INTERFACE (provider);
  88   iface->stop (provider, actor);
  89 }
  90
  91 SwfdecSoundMatrix *
  92 swfdec_sound_provider_get_matrix (SwfdecSoundProvider *provider)
  93 {
  94   SwfdecSoundProviderInterface *iface;
  95
  96   g_return_val_if_fail (SWFDEC_IS_SOUND_PROVIDER (provider), NULL);
  97
  98   iface = SWFDEC_SOUND_PROVIDER_GET_INTERFACE (provider);
  99   return iface->get_matrix (provider);
 100 }