Pause the RingBuffer before pausing the decoder.

If the RingBuffer has reached, or is very close to, the end of the file
then it may be in a wait state. Pausing the RingBuffer clears this wait
state and hence frees up the decoder thread so that it can be paused
quickly.

Author: Mark Kendall

mythtv/libs/libmythtv/mythplayer.cpp

@@ -341,8 +341,8 @@ bool MythPlayer::Pause(void)
     next_normal_speed = false;
     PauseVideo();
     audio.Pause(true);
-    PauseDecoder();
     PauseBuffer();
+    PauseDecoder();
     allpaused = decoderPaused && videoPaused && bufferPaused;
     {
         QMutexLocker locker(&decoder_change_lock);