[MPlayer-users] mencoder: encoding a B&W movie

Bijan Soleymani bijan at psq.com
Mon Oct 21 15:10:04 CEST 2002


First pass:
mencoder TITLE01-ANGLE1.VOB -oac copy -ovc lavc -lavcopts
vcodec=mpeg4:vhq:vpass=1:vbitrate=800:keyint=48 -ofps 23.976 -npp lb
-ss 2:00 -endpos 0:30 -vop scale -zoom -xy 640 -o movie.avi

The bitrate is very low. At that bitrate I would scale to something
like 360x270 for 4:3 aspect ratio or 360x153 for 2.35:1.

Dvds average about 5 mb/s for 720x480. Even though the mpeg4
you're using with mencoder does better compression than the
mpeg2 on the dvd, it's still not going to work too well at 800
kbits.

I use this for 4:3 DVDs:
mencoder -dvd 1 -vop scale=360:270 -oac mp3lame
-ovc lavc -lavcopts vcodec=mpeg4


And this for 2.35:1
mencoder -dvd 1 -vop crop=360:153:0:23,scale=360:202
-oac mp3lame -ovc lavc -lavcopts vcodec=mpeg4

Bijan




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