[PATCH v2 0/8] MR2742: winegstreamer: More media source cleanup.

[Rémi Bernon (＠rbernon)]

Fix a couple of potential leaks, avoid silently eating errors and simplify the presentation and stream descriptor initialization code.

--
  v2: winegstreamer: Create media source presentation descriptor as needed.
      winegstreamer: Keep a stream descriptor array on the media source.
      winegstreamer: Avoid eating errors in media source async commands.
      winegstreamer: Simplify media source wait_on_sample control flow.
      winegstreamer: Start media streams in a dedicated media_stream_start helper.
      winegstreamer: Use helpers to convert stream descriptor type to wg_format.
      winegstreamer: Avoid potential leak of media source async commands.
      winegstreamer: Return a IUnknown pointer from source_create_async_op.

https://gitlab.winehq.org/wine/wine/-/merge_requests/2742