IMediaSample::IsSyncPoint method (strmif.h)

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


HRESULT IsSyncPoint();

Return value

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


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.


Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header strmif.h (include Dshow.h)
Library Strmiids.lib

See also

Error and Success Codes

IMediaSample Interface