MFPKEY_BUFFERFULLNESSINFIRSTBYTE Property
Specifies whether the encoded video bit stream contains a buffer fullness value with every key frame.
Constant for IPropertyBag
g_wszWMVCBufferFullnessInFirstByte
Data Type
VT_BOOL
Remarks
You must set an output type before getting this value.
You can get the value of this property using IWMCodecProps::GetCodecProp. If you use IPropertyBag, you must first set the FOURCC value of the desired compressed format with the MFPKEY_FOURCC property.
Having the buffer fullness in the first byte of all key frames enables you to determine the buffer size required when concatenating compressed video streams.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows XP [desktop apps only] |
| Minimum supported server |
Windows Server 2003 [desktop apps only] |
| Header |
|
See also