AVIStreamPrevKeyFrameTime

The AVIStreamPrevKeyFrameTime macro returns the time of the previous key frame in the stream, starting at a given time.

AVIStreamPrevKeyFrameTime(
  pavi, 
  time  
);
 

Parameters

pavi

Handle of an open stream.

time

Position in the stream to begin searching.

Return Values

Returns the time if successful or – 1 otherwise.

Remarks

The search performed by this macro includes the frame that corresponds to the specified time.

The AVIStreamPrevKeyFrameTime macro is defined as follows:

#define AVIStreamPrevKeyFrameTime(pavi, time) \ 
    AVIStreamSampleToTime(pavi, AVIStreamPrevKeyFrame(pavi, 
    AVIStreamTimeToSample(pavi, time))) 
 

QuickInfo

  Windows NT: Requires version 3.1 or later.
  Windows: Requires Windows 95 or later.
  Windows CE: Unsupported.
  Header: Declared in vfw.h.

See Also

AVIFile Functions and Macros Overview, AVIFile Macros