[MPlayer-users] 3pass mencoding creates shorter length video

Arpi arpi at thot.banki.hu
Sun Jan 12 21:32:37 CET 2003


Hi,

> mencoder -dvd 1 -oac copy -ovc lavc -lavcopts vpass=1:...
> mencoder -dvd 1 -oac mp3lame -ovc lavc -lavcopts vpass=2:...

you shouldn't do this.
if there are any broken bits in teh audio stream, or anyway, it's possible
that different frames will be skipped/dupped in the 2 passes, causing 2-pass
video messed up. you should use teh same audio codec for both passes (but
may use faster options for pass1, like minimum algo quality and abr)


A'rpi / Astral & ESP-team

--
Developer of MPlayer, the Movie Player for Linux - http://www.MPlayerHQ.hu



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