IMediaSample::SetSyncPoint method

The SetSyncPoint method specifies whether the beginning of this sample is a synchronization point.

Syntax


HRESULT SetSyncPoint(
  [in] BOOL bIsSyncPoint
);

Parameters

bIsSyncPoint [in]

Boolean value that specifies whether this is a synchronization point. If TRUE, this is a synchronization point.

Return value

Returns S_OK or an HRESULT value indicating the cause of the error.

Remarks

The filter that first generates the data in the sample should set this flag to TRUE or FALSE, as appropriate. For uncompressed video and PCM audio, set every sample to TRUE. For compressed video, set key frames to TRUE and delta frames to FALSE.

This flag is purely informational. Other filters downstream might check this flag; for example, a filter might need to skip to the next key frame.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Strmif.h (include Dshow.h)

Library

Strmiids.lib

See also

Error and Success Codes
IMediaSample Interface
IMediaSample::IsSyncPoint

 

 

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