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IMediaSample::IsSyncPoint

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Microsoft DirectShow 9.0

IMediaSample::IsSyncPoint

The IsSyncPoint method determines if the beginning of this sample is a synchronization point.

Syntax

  HRESULT IsSyncPoint(void);

Return Values

Returns S_OK if the sample is a synchronization point. Otherwise, returns S_FALSE.

Remarks

A filter can begin a stream at any synchronization point. With some compression types, streaming can begin only at certain points in the stream; for example, on key frames. If the bTemporalCompression member of the AM_MEDIA_TYPE structure is FALSE, all samples are synchronization points.

Requirements

Header: Declared in Strmif.h; include Dshow.h.

Library: Use Strmiids.lib.

See Also