FrameQueueSink.PopOutputQueueBuffer Method
Returns one IFrameQueueBuffer from the copied buffer list.
Syntax: 
[C#]
public IFrameQueueBuffer        PopOutputQueueBuffer();
Returns:

This returns either the oldest copied buffer or nullptr when the copied buffer list was empty.
Remarks:

Use this to get only one copied frame from the sink.

Information:

Introduced in version 3.5
See also: FrameQueueSink, IFrameQueueBuffer, IFrameQueueSinkListener.FramesQueued

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