[PATCH v2 0/3] MR10231: winegstreamer: Implement presentation clock functions for media sink.

[Ziqing Hui (＠zhui)]

This is needed by MF sink writer.

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  v2: winegstreamer: Implement media_sink_GetPresentationClock.
      winegstreamer: Implement media_sink_SetPresentationClock.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10231