MFPKEY_VBRENABLED Property

Specifies whether the encoder uses variable-bit-rate (VBR) encoding. Read-write.

Constant for IPropertyBag

g_wszWMVCVBREnabled, g_wszWMCPAudioVBRSupported

Data Type

VT_BOOL

Default Value

VARIANT_FALSE

Remarks

This value must be set to VARIANT_TRUE for any of the other VBR properties to be used by the codec.

After you set this value to VARIANT_TRUE on the audio encoder, the output types retrieved by using the IMediaObject::GetOutputType method are VBR types.

Requirements

Minimum supported client

Windows XP [desktop apps only]

Minimum supported server

Windows Server 2003 [desktop apps only]

Header

Wmcodecdsp.h

See also

MFPKEY_CONSTRAIN_ENUMERATED_VBRQUALITY
MFPKEY_DESIRED_VBRQUALITY
Media Foundation Properties

 

 

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