[MPlayer-dev-eng] Make ffmpeg MPEG1/2 decoder the default?

Loren Merritt lorenm at u.washington.edu
Tue Feb 19 08:29:52 CET 2008


On Tue, 19 Feb 2008, Rich Felker wrote:
> On Tue, Feb 19, 2008 at 06:55:30AM +0100, Michael Niedermayer wrote:
>
>> dont forget 
>> -lavdopts fast
>
> Will this cause any visible problems?

I don't see any problems.
The effect is to skip the part where it toggles the lsb of the 63rd dct 
coef if the sum of all dct coefs is even. (What's that for, anyway?)
Theoretically shouldn't be any worse than a idct mismatch, which is almost 
always the case in mpeg1/2 because we have no idea what idct the dvd 
encoder used.

--Loren Merritt



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