[FFmpeg-user] 2-pass ENcoding with mpeg (switching from mencoder)

[James Board]

>Normally I get this error when trying to pass 5.1-channel audio to

>the libvo-aacenc encoder which can't handle it, but in this case you've
>disabled audio with '-an' (do you really want that?). 

Actually, I'd rather pass the audio through in the same exact format.  I
can do this in mencoder with '-avc copy'.  What's the equivalent way
to pass audio through in ffmpeg?