[Video] Disable bg optimization if avg keyframe distance is >10s

media/blink/webmediaplayer_impl.cc

Index: media/blink/webmediaplayer_impl.cc
diff --git a/media/blink/webmediaplayer_impl.cc b/media/blink/webmediaplayer_impl.cc
index c44ada4b28883a4085ef020e6e0df6d22797948b..6e6d92729e878dff487470747da962ba0e97ea83 100644
--- a/media/blink/webmediaplayer_impl.cc
+++ b/media/blink/webmediaplayer_impl.cc
@@ -2114,9 +2114,14 @@ bool WebMediaPlayerImpl::ShouldPauseWhenHidden() const {
 }
 
 bool WebMediaPlayerImpl::ShouldDisableVideoWhenHidden() const {
+  DCHECK(main_task_runner_->BelongsToCurrentThread());
   DCHECK(IsHidden());
+
+  PipelineStatistics stats = pipeline_.GetStatistics();
   return IsBackgroundVideoTrackOptimizationEnabled() && hasVideo() &&

[DaleCurtis, 2017/01/10 21:11:40]

Early return before grabbing statistics if the rest of this is false.

[whywhat, 2017/01/10 21:51:54]

Done.

-         hasAudio() && !IsStreaming();
+         hasAudio() && !IsStreaming() &&
+         stats.video_keyframe_distance_average_ms <
+             max_keyframe_distance_for_fast_decode_.InMilliseconds();
 }
 
 void WebMediaPlayerImpl::EnableVideoTrackIfNeeded() {