Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Contains the merit value of a hardware codec.
Data type
UINT32
Get/set
To get this attribute, call IMFAttributes::GetUINT32.
To set this attribute, call IMFAttributes::SetUINT32.
Remarks
This attribute is set on the activation object for a Media Foundation transform (MFT) that represents a hardware codec. The value of the attribute is the codec's merit value.
This attribute controls the order in which the MFTEnumEx function enumerates codecs, if the MFT_ENUM_FLAG_SORTANDFILTER flag is set. MFTs with a merit value appear higher in the list than other MFTs.
This attribute does not contain a trusted value. To verify the codec's actual merit value, call the MFGetMFTMerit function.
If the value of the MFT_CODEC_MERIT_Attribute attribute does not match the merit value retrieved by MFGetMFTMerit, the IMFActivate::ActivateObject method fails and returns MF_E_INVALID_CODEC_MERIT.
The GUID constant for this attribute is exported from mfuuid.lib.
Requirements
Requirement | Value |
---|---|
Minimum supported client |
Windows 7 [desktop apps | UWP apps] |
Minimum supported server |
Windows Server 2008 R2 [desktop apps | UWP apps] |
Header |
|
See also