IAMVideoCompression::put_KeyFrameRate
This method sets the key-frame rate.
HRESULT put_KeyFrameRate(
long KeyFrameRate
);
Parameters
- KeyFrameRate
[in] A long value that identifies the desired key-frame rate. If the value is negative, the filter will use the default key-frame rate. If the value is zero, only the first frame will be a key frame.
Return Values
This method returns an HRESULT value.
Remarks
To determine if the filter supports this method, call the IAMVideoCompression::GetInfo method and check for the CompressionCaps_CanKeyFrame flag (see CompressionCaps) in the pCapabilities parameter. The GetInfo method also returns the default key-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_KeyFrameRate | IAMVideoCompression::GetInfo | CompressionCaps
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