gstaudioclock

gstaudioclock — Helper object for implementing audio clocks

Synopsis


#include <gst/audio/gstaudioclock.h>

                    GstAudioClock;
GstClockTime        (*GstAudioClockGetTimeFunc)         (GstClock *clock,
                                                         gpointer user_data);
GstClock*           gst_audio_clock_new                 (gchar *name,
                                                         GstAudioClockGetTimeFunc func,
                                                         gpointer user_data);

Object Hierarchy

  GObject
   +----GstObject
         +----GstClock
               +----GstSystemClock
                     +----GstAudioClock

Description

GstAudioClock makes it easy for elements to implement a GstClock, they simply need to provide a function that returns the current clock time.

This object is internally used to implement the clock in GstBaseAudioSink.

Last reviewed on 2006-09-27 (0.10.12)

Details

GstAudioClock

typedef struct _GstAudioClock GstAudioClock;

Opaque GstAudioClock.

GstAudioClockGetTimeFunc ()

GstClockTime        (*GstAudioClockGetTimeFunc)         (GstClock *clock,
                                                         gpointer user_data);

This function will be called whenever the current clock time needs to be calculated. If this function returns GST_CLOCK_TIME_NONE, the last reported time will be returned by the clock.

`clock` :	the GstAudioClock
`user_data` :	user data
Returns :	the current time or GST_CLOCK_TIME_NONE if the previous time should be used.

gst_audio_clock_new ()

GstClock*           gst_audio_clock_new                 (gchar *name,
                                                         GstAudioClockGetTimeFunc func,
                                                         gpointer user_data);

Create a new GstAudioClock instance. Whenever the clock time should be calculated it will call func with user_data. When func returns GST_CLOCK_TIME_NONE, the clock will return the last reported time.

`name` :	the name of the clock
`func` :	a function
`user_data` :	user data
Returns :	a new GstAudioClock casted to a GstClock.

			GStreamer Base Plugins 0.10 Library Reference Manual
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