LinuxQuestions.org - VOB -> AVI - with mencoder, pixlated... what should I do?

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VOB -> AVI - with mencoder, pixlated... what should I do?

Hi,

I tried using mencoder to convert a VOB file to AVI, however the resultant video is quiet pixlated. Here is my commandline options:

Code:

mencoder $1 \

    -o $2 \

    -ovc lavc \

    -lavcopts vcodec=mpeg4\

    :mbd=2\

    :mv0\

    :trell\

    :v4mv\

    :cbp\

    :last_pred=3\

    :predia=2\

    :dia=2\

    :vmax_b_frames=2\

    :vb_strategy=1\

    :precmp=2\

    :cmp=2\

    :subcmp=2\

    :preme=2\

    :qns=2\

    -oac copy

What am I doing wrong?
Thanks
Chris

i get good results with these parameters;
http://www.linuxquestions.org/questi...4/#post3522600

I prefer ffmpeg for this, and I would use:

Code:

ffmpeg -i input.vob -vcodec libxvid -qscale 5 -s 640x272 -r 23.976 -aspect 40:17 -g 240 -bf 2 -acodec libmp3lame -ab 160k -ar 48000 -async 48000 -ac 2 -pass 1 -an -f rawvideo -y /dev/null

ffmpeg -i input.vob -vcodec libxvid -qscale 5 -s 640x272 -r 23.976 -aspect 40:17 -g 240 -bf 2 -acodec libmp3lame -ab 160k -ar 48000 -async 48000 -ac 2 -pass 2 -f avi output.avi

Changing the parameters as needed. The GOP '-g' should be 10 x FPS, a lower qscale gives better quality, but higher bitrate and size, it's rare to ever use 3 or less as this may not play on most standalone players because of high bitrate, 5 is a good number.