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List:       mplayer-dev-eng
Subject:    Re: [MPlayer-dev-eng] [PATCH] new mpeg muxer
From:       Alexander Strange <astrange () ithinksw ! com>
Date:       2005-02-28 21:53:31
Message-ID: 135ec7c09eaaefe4442533b86579413c () ithinksw ! com
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On Feb 28, 2005, at 2:31 PM, Arpi wrote:
> it's imho even worse. at least on my g5, it seems qt converts the
> yv12 image to rgb, so when doing big scaling (ie. 320x240 ->1280x1024)
> you can see big aliasing effect on colors, like if you first convert to
> to yuv 4:4:4 (or rgb) and then scale up using linear scaling...

I don't think it's that dumb (although Windows Media Player does it); 
I've seen other people making workarounds who could afford g5s and they 
never saw anything that bad . The best way to find out is to run 
mplayer in Apple's Shark profiler 
(http://developer.apple.com/tools/performance/#CHUD); 20% time will be 
in YUV420To2VUY_W1x if it's the same as everything I've seen.

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