IMFClockConsumer interface (mfidl.h)

Implemented by an app in order to get access to the IMFPresentationClock.

Inheritance

The IMFClockConsumer interface inherits from the IUnknown interface. IMFClockConsumer also has these types of members:

Methods

The IMFClockConsumer interface has these methods.

IMFClockConsumer::GetPresentationClock Called by the media pipeline to get an instance of IMFPresentationClock.
IMFClockConsumer::SetPresentationClock Called by the media pipeline to provide the app with an instance of IMFPresentationClock.

Remarks

The media pipeline checks for the presence of this interface by calling QueryInterface. Components can use the presentation clock supplied through this interface to determine how much buffering there is in the pipeline after the component. You can do this in the IMFTransform::ProcessInput method by calculating the difference between the value returned by IMFPresentationClock::GetTime and the value returned by IMFSample::GetSampleTime. This difference represents the amount of buffered data after the MFT in the pipeline.

Requirements

Requirement	Value
Minimum supported client	Windows 10, version 1703 [desktop apps only]
Minimum supported server	None supported
Target Platform	Windows
Header	mfidl.h