[MEncoder-users] Mencoder for iPod?

[Aaron Digulla]

Jim Driscoll wrote:
> I create ipod Compatible Files with:
> 
> -af volume=13:1 -aspect 16:9 -of lavf -lavfopts
> format=psp:i_certify_that_my_video_stream_does_not_use_b_frames  -oac lavc
> -ovc lavc -lavcopts
> aglobal=1:vglobal=1:coder=1:vcodec=mpeg4:acodec=aac:vbitrate=640:abitrate=12
> 8 -vf scale=374:214,crop=368:208:3:3,pp=fa,harddup -info name="": -ofps
> 24000/1001 
> 
> The volume is in there for DVD sources.

I guess "-af volume=13:1" is to fix the low volume of most DVDs?

> And obviously this is for a 16:9 source.
> Mencoder doesn't seem to set the bit rate correctly for AAC when combined
> with h264 for ipods.  If someone knows how to get aac and h264 to work with
> JUST Mencoder please reply.

Does that mean your command above will produce broken files without
sound? Or only if I would replace "vcodec=mpeg4" with "vcodec=h264"?

> Change the mpeg4 to h264 and you have a PSP compatible file, OR you can add
> -srate 24000, but you can get higher quality audio on the PSP with h264.

:-/ Why do you specify "format=psp" in your example? Is this a typo?

Do I have to use -ofps 24000/1001 or can I also use 30fps or 25fps (for
PAL TV shows)? What are the limits of an iPod?

Regards,

-- 
Aaron "Optimizer" Digulla a.k.a. Philmann Dark
"It's not the universe that's limited, it's our imagination.
Follow me and I'll show you something beyond the limits."
http://www.philmann-dark.de/