IMFPresentationClock::SetTimeSource method

Sets the time source for the presentation clock. The time source is the object that drives the clock by providing the current time.

Syntax

HRESULT SetTimeSource(
  [in] IMFPresentationTimeSource *pTimeSource
);

Parameters

pTimeSource [in]

Pointer to the IMFPresentationTimeSource interface of the time source.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Remarks

The presentation clock cannot start until it has a time source.

The time source is automatically registered to receive state change notifications from the clock, through the time source's IMFClockStateSink interface, which all time sources must implement.

This time source have a frequency of 10 MHz. See IMFClock::GetClockCharacteristics. If not, the method returns MF_E_CLOCK_NOT_SIMPLE.

Requirements

See also

IMFPresentationClock

Presentation Clock