MFPKEY_VBRENABLED Property
Specifies whether the codec will use variable-bit-rate (VBR) encoding.
Constant for IPropertyBag
g_wszWMVCVBREnabled, g_wszWMCPAudioVBRSupported
Data Type
VT_BOOL
Default Value
FALSE
Remarks
This value must be set to TRUE for any of the other VBR properties to be used by the codec.
After you set this value to TRUE on the audio encoder, the output types retrieved by using the IMediaObject::GetOutputType method are VBR types.
Applies To
This read/write property is available on the encoder of the following codecs:
- Windows Media Audio 9
- Windows Media Audio 9 Lossless
- Windows Media Audio 10 Professional
- Windows Media Audio 9 Voice
- Windows Media Video 9
- Windows Media Video 9 Advanced Profile
- Windows Media Video 9 Screen
- Windows Media Video 9.1 Image
Requirements
Client: Requires Windows Vista or Windows XP.
Header: Include wmcodecdsp.h.
See Also