/usr/include/gstreamer-0.10/gst/audio/gstaudiosink.h is in libgstreamer-plugins-base0.10-dev 0.10.36-1.1ubuntu2.
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2005 Wim Taymans <wim@fluendo.com>
*
* gstaudiosink.h:
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_AUDIO_SINK_H__
#define __GST_AUDIO_SINK_H__
#include <gst/gst.h>
#include <gst/audio/gstbaseaudiosink.h>
G_BEGIN_DECLS
#define GST_TYPE_AUDIO_SINK (gst_audio_sink_get_type())
#define GST_AUDIO_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_SINK,GstAudioSink))
#define GST_AUDIO_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_SINK,GstAudioSinkClass))
#define GST_AUDIO_SINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_AUDIO_SINK,GstAudioSinkClass))
#define GST_IS_AUDIO_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_SINK))
#define GST_IS_AUDIO_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_SINK))
typedef struct _GstAudioSink GstAudioSink;
typedef struct _GstAudioSinkClass GstAudioSinkClass;
/**
* GstAudioSink:
*
* Opaque #GstAudioSink.
*/
struct _GstAudioSink {
GstBaseAudioSink element;
/*< private >*/ /* with LOCK */
GThread *thread;
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
/**
* GstAudioSinkClass:
* @parent_class: the parent class structure.
* @open: Open the device. No configuration needs to be done at this point.
* This function is also used to check if the device is available.
* @prepare: Prepare the device to operate with the specified parameters.
* @unprepare: Undo operations done in prepare.
* @close: Close the device.
* @write: Write data to the device.
* @delay: Return how many samples are still in the device. This is used to
* drive the synchronisation.
* @reset: Returns as quickly as possible from a write and flush any pending
* samples from the device.
*
* #GstAudioSink class. Override the vmethods to implement functionality.
*/
struct _GstAudioSinkClass {
GstBaseAudioSinkClass parent_class;
/* vtable */
/* open the device with given specs */
gboolean (*open) (GstAudioSink *sink);
/* prepare resources and state to operate with the given specs */
gboolean (*prepare) (GstAudioSink *sink, GstRingBufferSpec *spec);
/* undo anything that was done in prepare() */
gboolean (*unprepare) (GstAudioSink *sink);
/* close the device */
gboolean (*close) (GstAudioSink *sink);
/* write samples to the device */
/* FIXME 0.11: change return value to gint, as most implementation use that
* already anyway */
guint (*write) (GstAudioSink *sink, gpointer data, guint length);
/* get number of samples queued in the device */
guint (*delay) (GstAudioSink *sink);
/* reset the audio device, unblock from a write */
void (*reset) (GstAudioSink *sink);
/*< private >*/
gpointer _gst_reserved[GST_PADDING];
};
GType gst_audio_sink_get_type(void);
G_END_DECLS
#endif /* __GST_AUDIO_SINK_H__ */
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