|Microsoft DirectX 9.0|
Downgrades the frame rate on a digital video (DV) stream. The DV Splitter filter exposes this interface.
Applications can use this interface to reduce the frame rate on a DV stream, before the stream reaches the DV Video Decoder filter. This can be helpful for processor-intensive tasks, such as real-time transcoding.
In addition to the methods inherited from IUnknown, the IDVSplitter interface exposes the following method.
|DiscardAlternateVideoFrames||Discards half of the frames in the video stream.|