The new playback rate
The format of the seek values
The optional seek flags.
The type and flags for the new start position
The value of the new start position
The type and flags for the new stop position
The value of the new stop position
TRUE if the event was handled. Flushing seeks will trigger a preroll, which will emit GST_MESSAGE_ASYNC_DONE.
Sends a seek event to an element. See Event.newSeek for the details of the parameters. The seek event is sent to the element using Element.sendEvent.
MT safe.