[MEncoder-users] Happy with encoding results but wish better understanding

[RC]

On Tue, 20 Apr 2010 13:40:40 +0000
"Sue Morton" <zytb8phzgv at snkmail.com> wrote:

> Command line to create progressive AVI:
> 
>   mencoder input.mpg -edl input.edlp
>   -mc 5 -idx -aspect 4:3
>   -ovc lavc -lavcopts vcodec=mpeg4:mbd=2:trell:
>           v4mv:vhq:vbitrate=2500:threads=2:aspect=4/3:vpass={pass}
>   -vf yadif=3,mcdeint,framestep=2,harddup
>   -oac mp3lame -lameopts cbr:br=128 -af lavcresample=44100 -srate
>   44100 -passlogfile input.log -ffourcc DX50 -o {output}

vhq is mbd=1, so a conflict with mbd=2 in there.

You would get the most help from adding "trell".  You might be able
to squeeze some more quality out of it using vlelim=-4:vcelim=7,
and perhaps nr=.

I would think you'd be happy with yadif=0 and drop mcdeint,framestep=2,
but if performance is no issue, no reason not to keep it.

Additionally, you'll get a big quality improvement/size reduction if you
crop the black borders and noise around the edges, but then it will
display at least a bit differently on your player, so be a bit careful. 
If you go that way, make sure you use final dimentions that are
multiples of 16 for progressive, and 32 for the height when the video
will be interlaced.

-- 
Ha. I'm the idiot.