vo: avoid burning CPU when paused

Some code always calls vo_event(), even with event==0, which leads to
immediate wakeup, which in turn causes the function to be called again.
This would burn CPU, which was especially noticeable when paused.

1 files changed, 2 insertions, 1 deletions

diff --git a/video/out/vo.c b/video/out/vo.c
index 74b4fce42f..e670551994 100644
--- a/video/out/vo.c
+++ b/video/out/vo.c
@@ -982,9 +982,10 @@ void vo_event(struct vo *vo, int event)
     pthread_mutex_lock(&in->lock);
     if ((in->queued_events & event & VO_EVENTS_USER) != (event & VO_EVENTS_USER))
         mp_input_wakeup(vo->input_ctx);
+    if (event)
+        wakeup_locked(vo);
     in->queued_events |= event;
     in->internal_events |= event;
-    wakeup_locked(vo);
     pthread_mutex_unlock(&in->lock);
 }