IMFSampleGrabberSinkCallback interface (mfidl.h)
Callback interface to get media data from the sample-grabber sink.
Inheritance
The IMFSampleGrabberSinkCallback interface inherits from IMFClockStateSink. IMFSampleGrabberSinkCallback also has these types of members:
Methods
The IMFSampleGrabberSinkCallback interface has these methods.
| IMFSampleGrabberSinkCallback::OnProcessSample Called when the sample-grabber sink receives a new media sample. (IMFSampleGrabberSinkCallback.OnProcessSample) |
| IMFSampleGrabberSinkCallback::OnSetPresentationClock Called when the presentation clock is set on the sample-grabber sink. |
| IMFSampleGrabberSinkCallback::OnShutdown Called when the sample-grabber sink is shut down. |
Remarks
The sample-grabber sink enables an application to get data from the Media Foundation pipeline without implementing a custom media sink. To use the sample-grabber sink, the application must perform the following steps:
- Implement the IMFSampleGrabberSinkCallback interface.
- Call MFCreateSampleGrabberSinkActivate, passing in the IMFSampleGrabberSinkCallback interface pointer. This function returns an IMFActivate object.
- Create a topology that includes an output node with the sink's IMFActivate object.
- Pass this topology to the Media Session.
You cannot use the sample-grabber sink to get protected content.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | mfidl.h |