MEPolicyChanged event
Raised by a pipeline component when the output policy for the stream changes. This event applies only to protected content.
Event values
Possible values retrieved from IMFMediaEvent::GetValue include the following.
| VARTYPE | Description |
|---|---|
| VT_UNKNOWN |
Pointer to the IMFOutputPolicy interface of the new policy for the stream. |
Remarks
All trusted outputs must handle this event. Media Foundation transforms (MFTs) receive this event through the IMFTransform::ProcessEvent method. Media sinks receive this event through the IMFStreamSink::PlaceMarker method.
The trusted output must apply the new policy or return the error code MF_E_POLICY_UNSUPPORTED.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows Vista [desktop apps | UWP apps] |
| Minimum supported server |
Windows Server 2008 [desktop apps | UWP apps] |
| Header |
|
See also