[PATCH v3 0/4] MR393: wmvcore: Asynchronous reader state transitions.

[Rémi Bernon (＠rbernon)]

Before https://gitlab.winehq.org/wine/wine/-/merge_requests/140, and to avoid a situation in the future where we might decide to implement this, and where the callback would be called asynchronously as they are supposed to, without the ASF reader filter supporting it.

--
  v3: winegstreamer: Make IWMReader state transitions asynchronous.
      winegstreamer: Leave the stream CS while waiting for a sample.
      winegstreamer: Move IWMReaderCallbackAdvanced *callback_advanced to a local variable.
      wmvcore/tests: Add more IWMReader_(Open|Start|Stop|Close) async checks.

https://gitlab.winehq.org/wine/wine/-/merge_requests/393