2 * Copyright (C) 2005 Sebastien Moutte <sebastien@moutte.net>
3 * Copyright (C) 2007 Pioneers of the Inevitable <songbird@songbirdnest.com>
4 * Copyright (C) 2010 Fluendo S.A. <support@fluendo.com>
6 * gstdirectsoundsink.h:
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Library General Public
10 * License as published by the Free Software Foundation; either
11 * version 2 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Library General Public License for more details.
18 * You should have received a copy of the GNU Library General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
23 * The development of this code was made possible due to the involvement
24 * of Pioneers of the Inevitable, the creators of the Songbird Music player
29 #ifndef __GST_DIRECTSOUNDSINK_H__
30 #define __GST_DIRECTSOUNDSINK_H__
33 #include <gst/audio/audio.h>
34 #include <gst/audio/gstaudiosink.h>
44 #define GST_TYPE_DIRECTSOUND_SINK (gst_directsound_sink_get_type())
45 #define GST_DIRECTSOUND_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DIRECTSOUND_SINK,GstDirectSoundSink))
46 #define GST_DIRECTSOUND_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DIRECTSOUND_SINK,GstDirectSoundSinkClass))
47 #define GST_IS_DIRECTSOUND_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DIRECTSOUND_SINK))
48 #define GST_IS_DIRECTSOUND_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DIRECTSOUND_SINK))
49 typedef struct _GstDirectSoundSink GstDirectSoundSink;
50 typedef struct _GstDirectSoundSinkClass GstDirectSoundSinkClass;
52 #define GST_DSOUND_LOCK(obj) (g_mutex_lock (&obj->dsound_lock))
53 #define GST_DSOUND_UNLOCK(obj) (g_mutex_unlock (&obj->dsound_lock))
55 struct _GstDirectSoundSink
60 /* directsound object interface pointer */
63 /* directsound sound object interface pointer */
64 LPDIRECTSOUNDBUFFER pDSBSecondary;
66 /* directSound buffer size */
69 /* offset of the circular buffer where we must write next */
70 guint current_circular_offset;
72 guint bytes_per_sample;
74 /* current volume setup by mixer interface */
78 /* current directsound device ID */
82 /* lock used to protect writes and resets */
85 gboolean first_buffer_after_reset;
87 GstAudioRingBufferFormatType type;
90 struct _GstDirectSoundSinkClass
92 GstAudioSinkClass parent_class;
95 GType gst_directsound_sink_get_type (void);
98 #endif /* __GST_DIRECTSOUNDSINK_H__ */