[PATCH v2 0/7] MR2719: winegstreamer: Cleanup media source streams and add synchronization.

[Rémi Bernon (＠rbernon)]

Mostly a refresh of https://gitlab.winehq.org/wine/wine/-/merge_requests/1278, with a bit of cleanup. More to come.

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  v2: winegstreamer: Remove unnecessary media source stream states.
      winegstreamer: Synchronize access to the media source from callbacks.
      winegstreamer: Synchronize concurrent access to the media stream.
      winegstreamer: Synchronize concurrent access to the media source.
      winegstreamer: Only break cyclic references in IMFMediaSource_Shutdown.
      winegstreamer: Keep a IMFMediaSource pointer in the media stream.
      winegstreamer: Query the wg_parser stream in media_stream_create.

https://gitlab.winehq.org/wine/wine/-/merge_requests/2719