IAMVideoCompression::put_PFramesPerKeyFrame
This method sets the rate of predicted (P) frames per key frame.
HRESULT put_PFramesPerKeyFrame(
long PFramesPerKeyFrame
);
Parameters
- PFramesPerKeyFrame
[in] Specifies the number of P frames per key frame. If the value is negative, the filter will use the default rate.
Return Values
Returns an HRESULT value.
Remarks
To determine if the filter supports this method, call the IAMVideoCompression::GetInfo method and check for the CompressionCaps_CanBFrame flag (see CompressionCaps) in the pCapabilities parameter. The GetInfo method also returns the default P-frame rate.
Requirements
DirectShow applications and DirectShow filters have different include file and link library requirements. See Setting Up the Build Environment for more information.
Pocket PC: Windows Mobile 5.0 and later
Smartphone: Windows Mobile 5.0 and later
OS Versions: Windows CE 5.01 and later.
Header:
See Also
IAMVideoCompression Interface | IAMVideoCompression::get_PFramesPerKeyFrame | IAMVideoCompression::GetInfo | CompressionCaps
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