[MEncoder-users] Question: 2-Pass Encoding No Bitrate Specification

[andreil1 at starlett.lv]

Hi,

After all, 2 pass encoding started working, I have to remove one of  
the options which caused segmentation fault.

Now I have this:

mencoder $1 -nosound -ovc x264 -x264encopts  
pass=1:bitrate=1200:4x4mv:subq=5:bframes=3:b_pyramid:weight_b -o  
$1.temp.menc2p1200.mp4
rm -f $1.temp.menc2p1200.mp4
mencoder $1 -oac copy -ovc x264 -x264encopts  
pass=2:bitrate=1200:4x4mv:subq=5:bframes=3:b_pyramid:weight_b -o  
$1.temp.menc2p1200.mp4

The question is - how to get rid of explicit bitrate specification (2- 
pass encoding seem to require)? I would like to use this script for  
batch converting, and there are files with both high and low bitrate.  
Is there something like "best guess by mencoder itself"?


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