Specifies whether a Media Foundation transform (MFT) copies attributes from input samples to output samples.
| Data type | PROPVARIANT type (vt) | PROPVARIANT member |
|---|---|---|
| VARIANT_BOOL | VT_BOOL | boolVal |
DECLSPEC_SELECTANY PROPERTYKEY MFPKEY_EXATTRIBUTE_SUPPORTED = { {0x456fe843,0x3c87,0x40c0, {0x94,0x9d,0x14,0x9,0xc9,0x7d,0xab,0x2c} }, 0x01 }
This attribute can have the following values.
| Value | Description |
|---|---|
| VARIANT_TRUE | The MFT copies attributes from the input samples to the output samples. |
| VARIANT_FALSE | The Media Session copies attributes from input samples to output samples. It does not overwrite any attributes that the MFT sets on the output samples. |
To get this attribute, call QueryInterface on the MFT for the IPropertyStore interface.
The default value is VARIANT_FALSE. If the MFT does not expose the IPropertyStore interface, or if this property is not set, treat the value asVARIANT_FALSE.
This property is read-only.
Header: Declared in mftransform.h.