mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-23 16:50:47 +00:00
108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
/* vim: set filetype=c: */
|
|
% ClassName
|
|
GstAudioSink
|
|
% TYPE_CLASS_NAME
|
|
GST_TYPE_AUDIO_SINK
|
|
% pads
|
|
sinkpad-audio
|
|
% pkg-config
|
|
gstreamer-audio-1.0
|
|
% includes
|
|
#include <gst/audio/gstaudiosink.h>
|
|
% prototypes
|
|
static gboolean gst_replace_open (GstAudioSink * sink);
|
|
static gboolean gst_replace_prepare (GstAudioSink * sink,
|
|
GstAudioRingBufferSpec * spec);
|
|
static gboolean gst_replace_unprepare (GstAudioSink * sink);
|
|
static gboolean gst_replace_close (GstAudioSink * sink);
|
|
static gint gst_replace_write (GstAudioSink * sink, gpointer data,
|
|
guint length);
|
|
static guint gst_replace_delay (GstAudioSink * sink);
|
|
static void gst_replace_reset (GstAudioSink * sink);
|
|
% declare-class
|
|
GstAudioSinkClass *audio_sink_class = GST_AUDIO_SINK_CLASS (klass);
|
|
% set-methods
|
|
audio_sink_class->open = GST_DEBUG_FUNCPTR (gst_replace_open);
|
|
audio_sink_class->prepare = GST_DEBUG_FUNCPTR (gst_replace_prepare);
|
|
audio_sink_class->unprepare = GST_DEBUG_FUNCPTR (gst_replace_unprepare);
|
|
audio_sink_class->close = GST_DEBUG_FUNCPTR (gst_replace_close);
|
|
audio_sink_class->write = GST_DEBUG_FUNCPTR (gst_replace_write);
|
|
audio_sink_class->delay = GST_DEBUG_FUNCPTR (gst_replace_delay);
|
|
audio_sink_class->reset = GST_DEBUG_FUNCPTR (gst_replace_reset);
|
|
% methods
|
|
/* open the device with given specs */
|
|
static gboolean
|
|
gst_replace_open (GstAudioSink * sink)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "open");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* prepare resources and state to operate with the given specs */
|
|
static gboolean
|
|
gst_replace_prepare (GstAudioSink * sink, GstAudioRingBufferSpec * spec)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "prepare");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* undo anything that was done in prepare() */
|
|
static gboolean
|
|
gst_replace_unprepare (GstAudioSink * sink)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "unprepare");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* close the device */
|
|
static gboolean
|
|
gst_replace_close (GstAudioSink * sink)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "close");
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/* write samples to the device */
|
|
static gint
|
|
gst_replace_write (GstAudioSink * sink, gpointer data, guint length)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "write");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* get number of samples queued in the device */
|
|
static guint
|
|
gst_replace_delay (GstAudioSink * sink)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "delay");
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* reset the audio device, unblock from a write */
|
|
static void
|
|
gst_replace_reset (GstAudioSink * sink)
|
|
{
|
|
GstReplace *replace = GST_REPLACE (sink);
|
|
|
|
GST_DEBUG_OBJECT (replace, "reset");
|
|
|
|
}
|
|
% end
|