| GStreamer Base Plugins 0.10 Library Reference Manual | ||||
|---|---|---|---|---|
#include <gst/audio/gstbaseaudiosink.h>
GstBaseAudioSink;
GstBaseAudioSinkClass;
enum GstBaseAudioSinkSlaveMethod;
#define GST_BASE_AUDIO_SINK_CLOCK (obj)
#define GST_BASE_AUDIO_SINK_PAD (obj)
GstRingBuffer* gst_base_audio_sink_create_ringbuffer
(GstBaseAudioSink *sink);
void gst_base_audio_sink_set_provide_clock
(GstBaseAudioSink *sink,
gboolean provide);
gboolean gst_base_audio_sink_get_provide_clock
(GstBaseAudioSink *sink);
void gst_base_audio_sink_set_slave_method
(GstBaseAudioSink *sink,
GstBaseAudioSinkSlaveMethod method);
GstBaseAudioSinkSlaveMethod gst_base_audio_sink_get_slave_method
(GstBaseAudioSink *sink);
GObject
+----GstObject
+----GstElement
+----GstBaseSink
+----GstBaseAudioSink
+----GstAudioSink
"buffer-time" gint64 : Read / Write "latency-time" gint64 : Read / Write "provide-clock" gboolean : Read / Write "slave-method" GstBaseAudioSinkSlaveMethod : Read / Write
This is the base class for audio sinks. Subclasses need to implement the ::create_ringbuffer vmethod. This base class will then take care of writing samples to the ringbuffer, synchronisation, clipping and flushing.
Last reviewed on 2006-09-27 (0.10.12)
typedef struct {
GstBaseSinkClass parent_class;
/* subclass ringbuffer allocation */
GstRingBuffer* (*create_ringbuffer) (GstBaseAudioSink *sink);
} GstBaseAudioSinkClass;
GstBaseAudioSink class. Override the vmethod to implement functionality.
GstBaseSinkClass |
the parent class. |
|
create and return a GstRingBuffer to write to. |
typedef enum
{
GST_BASE_AUDIO_SINK_SLAVE_RESAMPLE,
GST_BASE_AUDIO_SINK_SLAVE_SKEW,
GST_BASE_AUDIO_SINK_SLAVE_NONE
} GstBaseAudioSinkSlaveMethod;
Different possible clock slaving algorithms used when the internal audio clock is not selected as the pipeline master clock.
#define GST_BASE_AUDIO_SINK_CLOCK(obj) (GST_BASE_AUDIO_SINK (obj)->clock)
Get the GstClock of obj.
|
a GstBaseAudioSink |
#define GST_BASE_AUDIO_SINK_PAD(obj) (GST_BASE_SINK (obj)->sinkpad)
Get the sink GstPad of obj.
|
a GstBaseAudioSink |
GstRingBuffer* gst_base_audio_sink_create_ringbuffer (GstBaseAudioSink *sink);
Create and return the GstRingBuffer for sink. This function will call the
::create_ringbuffer vmethod and will set sink as the parent of the returned
buffer (see gst_object_set_parent()).
|
a GstBaseAudioSink. |
Returns : |
The new ringbuffer of sink.
|
void gst_base_audio_sink_set_provide_clock
(GstBaseAudioSink *sink,
gboolean provide);
Controls whether sink will provide a clock or not. If provide is TRUE,
gst_element_provide_clock() will return a clock that reflects the datarate
of sink. If provide is FALSE, gst_element_provide_clock() will return NULL.
|
a GstBaseAudioSink |
|
new state |
Since 0.10.16
gboolean gst_base_audio_sink_get_provide_clock (GstBaseAudioSink *sink);
Queries whether sink will provide a clock or not. See also
gst_base_audio_sink_set_provide_clock.
|
a GstBaseAudioSink |
Returns : |
TRUE if sink will provide a clock.
|
Since 0.10.16
void gst_base_audio_sink_set_slave_method
(GstBaseAudioSink *sink,
GstBaseAudioSinkSlaveMethod method);
Controls how clock slaving will be performed in sink.
|
a GstBaseAudioSink |
|
the new slave method |
Since 0.10.16
GstBaseAudioSinkSlaveMethod gst_base_audio_sink_get_slave_method (GstBaseAudioSink *sink);
Get the current slave method used by sink.
|
a GstBaseAudioSink |
Returns : |
The current slave method used by sink.
|
Since 0.10.16
"buffer-time" property"buffer-time" gint64 : Read / Write
Size of audio buffer in microseconds.
Allowed values: >= 1
Default value: 200000
"latency-time" property"latency-time" gint64 : Read / Write
Audio latency in microseconds.
Allowed values: >= 1
Default value: 10000
"provide-clock" property"provide-clock" gboolean : Read / Write
Provide a clock to be used as the global pipeline clock.
Default value: TRUE
"slave-method" property"slave-method" GstBaseAudioSinkSlaveMethod : Read / Write
Algorithm to use to match the rate of the masterclock.
Default value: Skew slaving