[mythtv-users] Mac OS X choppy playback at high display resolutions, such as 1080p
ryunokokoro at gmail.com
Wed Oct 10 04:53:53 UTC 2007
> I did some quick testing. It looks like that anytime that the image
> needs to be transformed (offset or scaled) it causes a problem so the
> patch wouldn't solve the problem if you set an overscan or offset.
> I don't know of an easy solution that will allow overscan or offset
> without using the QuickTime transform function which seems to be
> causing the problem.
> The most likely solution would probably be to move to a CoreVideo/
> OpenGL based VideoOutput class that could utilize the GPU for the
Ahh, so the problem lies in the QuickTime transform function.
Conceivably, though admittedly unlikely, Apple could update QuickTime
and fix the slow speed...?
The other option sounds like a major shift in the way the video is
processed on the Mac. Mino, are you a MythTV developer? Is that
something that is plausible? Should this be marked as a bug (as 1080p
TVs get more common this will likely affect a lot of people...)?
Thanks for all the help.
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