METransformHaveOutput event
Sent by an asynchronous Media Foundation transform (MFT) when new output data is available from the MFT.
Event values
Possible values retrieved from IMFMediaEvent::GetValue include the following.
VARTYPE | Description |
---|---|
VT_EMPTY |
No event data. |
Attributes
No attributes are defined for this event.
Remarks
Asynchronous MFTs send this event through the IMFMediaEventGenerator interface. Synchronous MFTs never send this event.
When the client of the MFT receives this event, it should call IMFTransform::ProcessOutput to get the output.
Requirements
Requirement | Value |
---|---|
Minimum supported client |
Windows 7 [desktop apps only] |
Minimum supported server |
Windows Server 2008 R2 [desktop apps only] |
Header |
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See also
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