[MEncoder-users] Ipod Video (or missing aac encoding in lavc)

[Everett]

On Monday 09 July 2007 03:06, Fredrik Eriksson wrote:
> Everett wrote:
> > I was struggling to make ipod compatible vids also; I googled
> > around and found a script called "podencoder."  It works well
> > for using x264 and faac.  It uses MP4Box (part of GPAC) to
> > convert the avi to mp4.  here is the website:
> >
> > http://diveintomark.org/archives/2007/06/07/howto-batch-encode-
> >video-for-ipod-under-linux-2007-edition
> >
> > I ended up using my own commands so that I could play around
> > with some -vf options.  I didn't try it with 640x480. 
> > something like this should work for a dvd, and I want to say
> > that most of the x264encopts I pulled out of that very
> > excellent "podencoder" script.
> >
> > mplayer dvd://1 -dumpstream -dumpfile out.vob
> >
> > mencoder -oac faac -faacopts br=128:object=2 -channels 2 -srate
> > 48000 -ovc x264 -x264encopts
> > pass=1:turbo=1:bitrate=500:vbv_maxrate=768:vbv_bufsize=244:noca
> >bac:level_idc=13 -vf scale=448:-10,harddup -ofps 24000/1001
> > in.vob -o out.avi
> >
> > mencoder -oac faac -faacopts br=128:object=2 -channels 2 -srate
> > 48000 -ovc x264 -x264encopts
> > pass=2:bitrate=500:vbv_maxrate=768:vbv_bufsize=244:nocabac:leve
> >l_idc=13:qcomp=0.7:me=umh:frameref=5:subq=6:partitions=all:trell
> >is=1:direct_pred=auto:threads=auto -vf scale=448:-10,harddup
> > -ofps 24000/1001 in.vob -o out.avi
> >
> > MP4Box -aviraw video out.avi
> > MP4Box -aviraw audio out.avi
> > mv out_audio.raw out.aac
> > mv out_video.h264 out.h264
> > MP4Box -add out.aac out.mp4
> > MP4Box -add out.h264:fps=23.976 out.mp4
>
> This is strange... I tried to use the *exact* same command (with
> the exceptions of using another input file, using -af-adv force=1
> for sane resampling, and muxing with 24 fps (same as input file)
> instead of 23.976), but it won't even play in quicktime (just
> like all other attempts I've done).
>
> I was starting to think that the lavf muxer was broken, since I
> even got segfaults when trying to remux the mplayer output files
> with MP4Box, but if this is supposed to work, then it seems like
> there is something strange with my mencoder... I've tried with
> revision 23744 (today) as well as the latest gentoo ebuild (from
> 22 june), none of them gave any result...
>
> any other ideas?
>
you could try rebuilding x264?