[MEncoder-users] different xvid bitrate, same size for resulting file ??

[Guillaume POIRIER]

Hi,
On 1/3/06, Uzu Maki <tsukune at gmail.com> wrote:
> #########
> nice -n 3 mencoder -oac mp3lame -lameopts abr:br=128 -aid 129 -ovc
> xvid -xvidencopts bitrate=1350:pass=1 -vf
> crop=720:560:0:8,scale=620:340,pp=lb dvd://1 -o /dev/null
> nice -n 3 mencoder -oac mp3lame -lameopts abr:br=128 -aid 129 -ovc
> xvid -xvidencopts bitrate=1350:pass=2 -vf
> crop=720:560:0:8,scale=620:340,pp=lb dvd://1 -o "movie1350.avi"
> #########
>
> as you can see I used bitrate = 1350 and got this:
> 571276936 2006-01-03 21:47 movie1350.avi (545Mo)
>
> before that, I used: 1250 and got the same file...
>
> how can this be ?

If your movie encodes very well, then the extra bitrate is not
necessary, and won't be used. Check the stats file, and see if pretty
much only low quants are used.
If you really need extra quality, and do not care use up a little more
space, you can append min_iquant=1 to your xvid line of options.

Guillaume
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