[MPlayer-users] Is PSNR a definitive way of judging the quality of encoded files?
rcooley at spamcop.net
Sun Sep 25 21:44:12 CEST 2005
On Sat, 24 Sep 2005 13:28:37 +0100
VJ <vijay.s.gill at gmail.com> wrote:
> I found that with mbcmp=4,cmp=2,subcmp=2 the PSNR was the highest
> among various values of cmp and subcmp.
*cmp=2 may have a high PSNR, but it looks quite terrible, IMHO.
Incredibly blocky. Great on animation, though.
> Increasing the value of cmp and subcmp beyond does not make much
> difference but reduces the speed of encoding.
Umm, what? The values of the *cmp options aren't in any order
(greater values don't mean better/worse), they're all completely
different methods. Check the man page for mbcmp.
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