gstreamer/sys/oss4/oss4-sink.h
Brian Cameron 8f12893c91 oss4sink: implement GstStreamVolume interface and add mute and volume properties
OSS4 supports per-stream volume control, so expose this using the right
API, so that playbin2 and applications like totem can make use of it
(instead of using a volume element for volume control).

Fixes #614305.
2010-04-29 13:21:29 +01:00

64 lines
2.1 KiB
C

/* GStreamer OSS4 audio sink
* Copyright (C) 2007-2008 Tim-Philipp Müller <tim centricular net>
*
* 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_OSS4_SINK_H
#define GST_OSS4_SINK_H
#include <gst/gst.h>
#include <gst/audio/gstaudiosink.h>
G_BEGIN_DECLS
#define GST_TYPE_OSS4_SINK (gst_oss4_sink_get_type())
#define GST_OSS4_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OSS4_SINK,GstOss4Sink))
#define GST_OSS4_SINK_CAST(obj) ((GstOss4Sink *)(obj))
#define GST_OSS4_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OSS4_SINK,GstOss4SinkClass))
#define GST_IS_OSS4_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OSS4_SINK))
#define GST_IS_OSS4_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OSS4_SINK))
typedef struct _GstOss4Sink GstOss4Sink;
typedef struct _GstOss4SinkClass GstOss4SinkClass;
struct _GstOss4Sink {
GstAudioSink audio_sink;
gchar * device; /* NULL if none was set */
gchar * open_device; /* the device we opened */
gchar * device_name; /* set if the device is open */
gint fd; /* -1 if not open */
gint bytes_per_sample;
gint mute_volume;
GstCaps * probed_caps;
GList * property_probe_list;
};
struct _GstOss4SinkClass {
GstAudioSinkClass audio_sink_class;
};
GType gst_oss4_sink_get_type (void);
G_END_DECLS
#endif /* GST_OSS4_SINK_H */