IMediaSample::IsSyncPoint
| 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