[PATCH 0/1] MR2887: winegstreamer: Make sure threads are not waiting for event_cond object.

[Santino Mazza (＠tati1454)]

First we set the EOS state, so the wait_parser_stream_buffer function doesn't
call pthread_cond_wait again. Then we must call pthread_cond_signal to make sure
that no one is waiting for it, if we don't do that, there is the possibility of
hanging wg_parser_disconnect at the free_stream call, because pthread_cond_destroy
will hang when the cond object is being waited by other threads.

Specifically this helps to fix a hang in some applications, specially Unreal Engine
games when changing sources too fast in a MediaPlayer.