ruby-****@sourc*****
ruby-****@sourc*****
2004年 8月 6日 (金) 03:48:39 JST
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REMOTE_ADDR = 217.117.55.140
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URL = http://ruby-gnome2.sourceforge.jp//?Gst%3A%3AClock
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= class Gst::Clock
Abstract class for global clocks.
== Object Hierarchy
* Object
* GLib::Instantiatable
* GLib::Object
* Gst::Object
* Gst::Clock
== Instance Methods
--- ==(clock)
This method returns true if two Gst::Clock objects are synchronized on the same time, false otherwise.
* clock: a Gst::Clock object.
* Returns: true if two Gst::Clock objects are synchronized on the same time, false otherwise.
--- active=(state)
Activates or deactivates the clock based on the active parameter.
As soon as the clock is activated, the time will start ticking.
* state: a boolean value.
* Returns: the given parameter 'state'.
--- active?
This method returns true if the clock is active, false otherwise.
* Returns: true if the clock is active, false otherwise.
+ --- event_time
+ Gets the "event time" of a given clock. An event on the clock happens
+ whenever this method is called. This ensures that multiple events that
+ happen shortly after each other are treated as if they happened at the same
+ time. GStreamer uses to keep state changes of multiple elements in sync.
+ * Returns: the time of the event (in nanoseconds).
+
+ --- get_event_time_delay(delay)
+ Gets the "event time" of a given clock. An event on the clock happens
+ whenever this method is called. This ensures that multiple events that
+ happen shortly after each other are treated as if they happened at the same
+ time. GStreamer uses to keep state changes of multiple elements in sync.
+ When calling this method, the specified delay will be added to the current
+ time to produce the event time. This can be used for events that are
+ scheduled to happen at some point in the future.
+ * delay: time before the event actually occurs (in nanoseconds).
+ * Returns: the time of the event (in nanoseconds).
+
--- handle_discont(time)
Notifies the clock of a discontinuity in time (nanoseconds).
It is possible that the clock was not updated by this call because only
the first discontinuitity in the pipeline is honoured.
* time: time in nanoseconds.
* Returns: true if the clock was updated, otherwise false.
+ --- next_entry
+ Synonym for Gst::Clock#next_id.
+ * Returns: the clock ID of the next event, or nil is no event is pending.
+
+ --- next_id
+ Gets the clock ID of the next event.
+ * Returns: the clock ID of the next event, or nil is no event is pending.
+
--- reset!
Reset the clock to time 0.
* Returns: self.
--- resolution
This method returns the accuracy of the clock.
* Returns: the accuracy of the clock.
--- resolution=(resolution)
Sets the accuracy of the clock.
* resolution: the accurary of the clock.
* Returns: the given parameter 'resolution'.
--- set_active(state)
Activates or deactivates the clock based on the active parameter.
As soon as the clock is activated, the time will start ticking.
* state: a boolean value.
* Returns: self.
--- set_resolution(resolution)
Sets the accuracy of the clock.
* resolution: the accurary of the clock.
* Returns: self.
--- set_speed(speed)
Sets the speed of the clock.
1.0 is the default speed.
* speed: the speed of the clock.
* Returns: self.
--- speed
This method returns the speed of the clock.
* Returns: the speed of the clock.
--- speed=(speed)
Sets the speed of the clock.
1.0 is the default speed.
* speed: the speed of the clock.
* Returns: the given parameter 'speed'.
--- time
This method returns the time of the clock (in nanoseconds).
* Returns: the time of the clock (in nanoseconds).
== Constants
=== GstClockFlags
--- FLAG_CAN_DO_PERIODIC_ASYNC
--- FLAG_CAN_DO_PERIODIC_SYNC
--- FLAG_CAN_DO_SINGLE_ASYNC
--- FLAG_CAN_DO_SINGLE_SYNC
--- FLAG_CAN_SET_RESOLUTION
--- FLAG_CAN_SET_SPEED
=== GstClockReturn
--- EARLY
--- ERROR
--- STOPPED
--- TIMEOUT
--- UNSUPPORTED
== Properties
+ --- event-diff: Integer (Read/Write)
+ The amount of time that may elapse until 2 events are treated as happening at different times.
+
--- max-diff: Integer (Read/Write)
The maximum amount of time to wait in nanoseconds.
--- stats: true or false (Read/Write)
Enable clock stats.
== See Also
- ((<Gst::SystemClock>)), ((<Gst>)).
+ ((<Gst>)).
- ((<lrz>))