2012-02-24, 06:20
OtisPresley Wrote:Thanks bluray, that did the trick! I monitored the stats during playback after disabling sync and never saw any drops under Video.
voip-ninja Wrote:This brings up a question I have, as I have also noticed pretty much zero frame drops using this trick with a 6450 (at least with H264 content). I notice that ae starts out at -50ms and wraps around about once every few minutes, I thought that when this happened a frame would be dropped? How can we see how far out of sync audio and video actually are during playback? Damian, any thoughts on this?
@otis - glad to hear it - that's how I usually run, with that disabled, as posted in a pic a dozen pages or so back. It seems to work best for me.
@voip-ninja - your OSD is showing how far out they are (that's what AE is) but within the movie are sync frames which lock things back in sync, so what you are seeing is that occuring. That's the wrap-around you're describing. Depending on your settings it will either hold the audio sample, creating a slight "blur" in the audio which is virtually unnoticeable, or drop the video frame.
The extent of this is gonna vary depending on refresh rate, sync frames, codec etc. Some formats and timings may make it more noticeable than others. Not sure why, but I think the 6450 seems to smooth this better than some of the other GPUs being tested here.
Keep testing videos of different codecs and you'll see quite a bit of varience in how far/fast "ae" drifts. Of course if you don't enable syncs you shouldn't see it drift.