[MEncoder-users] Video and Audio async

[RC]

On Tue, 20 Mar 2007 22:19:56 -0400
larrystotler at netscape.net wrote:

> This keeps from running the same mp3lame 2 times.  Speeds up overall 
> times. 

This is very bad advice.  
Your command-line completely throws away the MP3 audio, and you'll end
up with audio directly copied from the source file anyhow.  
It can only work when using -mc 0, (which doesn't work for most input)
Handling audio and video seperately leads to all kinds of strange
desync, unnecessarily.
Speed won't be improved much, if at all, over simply setting aq=9 on the
first pass (about 3x faster than aq=0).  
The better way to do something similar, is to encode video first using
-oac copy on both passes, then audio alone with something like:  
mencoder output.avi -ovc copy -oac mp3lame -o final.avi