struct GstBaseAudioSink

struct GstBaseAudioSink;

Opaque GstBaseAudioSink.

struct GstBaseAudioSinkClass

struct GstBaseAudioSinkClass {
  GstBaseSinkClass parent_class;

  /* subclass ringbuffer allocation */
  GstRingBuffer* (*create_ringbuffer)  (GstBaseAudioSink *sink);

  /* subclass payloader */
  GstBuffer*     (*payload)            (GstBaseAudioSink *sink,
                                        GstBuffer        *buffer);
};

GstBaseAudioSink class. Override the vmethod to implement functionality.

enum GstBaseAudioSinkSlaveMethod

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.

GST_BASE_AUDIO_SINK_CLOCK()

#define GST_BASE_AUDIO_SINK_CLOCK(obj)   (GST_BASE_AUDIO_SINK (obj)->clock)

Get the GstClock of obj.

GST_BASE_AUDIO_SINK_PAD()

#define GST_BASE_AUDIO_SINK_PAD(obj)     (GST_BASE_SINK (obj)->sinkpad)

Get the sink GstPad of obj.

gst_base_audio_sink_create_ringbuffer ()

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()).

gst_base_audio_sink_set_provide_clock ()

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.

Since 0.10.16

gst_base_audio_sink_get_provide_clock ()

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.

Since 0.10.16

gst_base_audio_sink_set_slave_method ()

void                gst_base_audio_sink_set_slave_method
                                                        (GstBaseAudioSink *sink,
                                                         GstBaseAudioSinkSlaveMethod method);

Controls how clock slaving will be performed in sink.

Since 0.10.16

gst_base_audio_sink_get_slave_method ()

GstBaseAudioSinkSlaveMethod gst_base_audio_sink_get_slave_method
                                                        (GstBaseAudioSink *sink);

Get the current slave method used by sink.

Since 0.10.16

gst_base_audio_sink_get_drift_tolerance ()

gint64              gst_base_audio_sink_get_drift_tolerance
                                                        (GstBaseAudioSink *sink);

Get the current drift tolerance, in microseconds, used by sink.

Since 0.10.31

gst_base_audio_sink_set_drift_tolerance ()

void                gst_base_audio_sink_set_drift_tolerance
                                                        (GstBaseAudioSink *sink,
                                                         gint64 drift_tolerance);

Controls the sink's drift tolerance.

Since 0.10.31

The "alignment-threshold" property

  "alignment-threshold"      guint64               : Read / Write

Timestamp alignment threshold in nanoseconds.

Allowed values: [1,18446744073709551614]

Default value: 40000000

The "buffer-time" property

  "buffer-time"              gint64                : Read / Write

Size of audio buffer in microseconds.

Allowed values: >= 1

Default value: 200000

The "can-activate-pull" property

  "can-activate-pull"        gboolean              : Read / Write

Allow pull-based scheduling.

Default value: FALSE

The "discont-wait" property

  "discont-wait"             guint64               : Read / Write

A window of time in nanoseconds to wait before creating a discontinuity as a result of breaching the drift-tolerance.

Allowed values: <= 18446744073709551614

Default value: 1000000000

Since 0.10.36

The "drift-tolerance" property

  "drift-tolerance"          gint64                : Read / Write

Controls the amount of time in microseconds that clocks are allowed to drift before resynchronisation happens.

Allowed values: >= 1

Default value: 40000

Since 0.10.26

The "latency-time" property

  "latency-time"             gint64                : Read / Write

Audio latency in microseconds.

Allowed values: >= 1

Default value: 10000

The "provide-clock" property

  "provide-clock"            gboolean              : Read / Write

Provide a clock to be used as the global pipeline clock.

Default value: TRUE

The "slave-method" property

  "slave-method"             GstBaseAudioSinkSlaveMethod  : Read / Write

Algorithm to use to match the rate of the masterclock.

Default value: GST_BASE_AUDIO_SINK_SLAVE_SKEW