[PATCH 0/6] MR226: winegstreamer: Leave stream_cs when calling the async reader callbacks.

[Rémi Bernon (＠rbernon)]

For https://gitlab.winehq.org/wine/wine/-/merge_requests/140 we will want to be able to enter the ASF Reader filter CS in the callbacks, for instance when a sample is received, or to notify about EOS. At the same time, another thread will possibly try to stop the filter, calling `IWMReader_Stop` which will try to enter the stream_cs as well and wait on the stream thread.