See my problems here with 720P MKV's and getting the red line to stay straight - http://forum.slysoft.com/showthread.php?t=40589
Well I have been fiddling and I've found out how to fix it, and recreate it!
The problem it seems, is when I use BEST SINC Interpolation + Time Stretching + Speeding Up.
Taking a 720P MKV which contains 640kbps AC3 track running @ 23.976FPS, speeding up to 25.000FPS and applying Time Stretching (don't even bother trying to tell me not to do it, I will not listen! :rock: ).
If I use the same configuration except use FAST SINC the red line is absolutely perfectly straight as a pencil!
The same can be said for GOOD SINC, however it's not as stable, but at least stays more consistently straight.
So it's specifically just BEST sync with the use of Time Stretching which results in a continual, perfectly timed blip in the red line graph, which causes the video to play unstable.
Best Sinc with Time Stretching off = Perfectly straight line!
I've added 3 log files, with each of the 3 Sinc qualities.
I checked my CPU Usage, and it's around 30% on BEST, so it surely isn't my CPU causing this.
Hopefully someone here can work out what's going on!
EDIT: In the meantime, I'm absolutely loving this 720P file running in DXVA and going from 15.7-15.9 MS sync offset. The red line has been perfectly straight for 15 minutes now.
And to be honest, using PAL Speedup with Fast Sinc probably hides any quality loss from dropping down from Best Sinc.
Well I have been fiddling and I've found out how to fix it, and recreate it!
The problem it seems, is when I use BEST SINC Interpolation + Time Stretching + Speeding Up.
Taking a 720P MKV which contains 640kbps AC3 track running @ 23.976FPS, speeding up to 25.000FPS and applying Time Stretching (don't even bother trying to tell me not to do it, I will not listen! :rock: ).
If I use the same configuration except use FAST SINC the red line is absolutely perfectly straight as a pencil!
The same can be said for GOOD SINC, however it's not as stable, but at least stays more consistently straight.
So it's specifically just BEST sync with the use of Time Stretching which results in a continual, perfectly timed blip in the red line graph, which causes the video to play unstable.
Best Sinc with Time Stretching off = Perfectly straight line!
I've added 3 log files, with each of the 3 Sinc qualities.
I checked my CPU Usage, and it's around 30% on BEST, so it surely isn't my CPU causing this.
Hopefully someone here can work out what's going on!
EDIT: In the meantime, I'm absolutely loving this 720P file running in DXVA and going from 15.7-15.9 MS sync offset. The red line has been perfectly straight for 15 minutes now.
And to be honest, using PAL Speedup with Fast Sinc probably hides any quality loss from dropping down from Best Sinc.
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