[MPlayer-DOCS] Re: Draft: iPod encoding guide

[Michael Niedermayer]

Hi

On Sat, Feb 10, 2007 at 09:16:43PM +0100, Michael Niedermayer wrote:
> Hi
> 
> On Wed, Feb 07, 2007 at 10:54:50PM +0100, Guillaume POIRIER wrote:
> > Hi,
> > 
> > On 2/7/07, Michael Niedermayer <michaelni at gmx.at> wrote:
> > >Hi
> > >
> > >On Thu, Jan 11, 2007 at 07:22:27PM -0500, Mark Pilgrim wrote:
> > >> Oh hell, I found some stupid copy-and-paste errors.  Just ignore draft
> > >> 1 and let's all start the discussion with draft 2 (attached).
> > >>
> > >> --
> > >> Cheers,
> > >> -Mark
> > >
> > >[...]
> > >> +<para>
> > >> +  The iPod 5G supports two video formats: MPEG-4 ASP (such as DivX or 
> > >Xvid)
> > >
> > >do we have to mention 2 random mpeg4 implemenattions here?
> > 
> > ;-)
> > 
> > 
> > >> +  and MPEG-4 AVC (commonly called H.264).  It supports two audio 
> > >formats:
> > >> +  MP3 and AAC.  But it only support one container format: MP4.  This 
> > >guide
> > >> +  will explain how to create iPod-compatible files with H.264 video and 
> > >AAC
> > >> +  audio in an MP4 container.  <application>MEncoder</application> can 
> > >not
> > >> +  create iPod-compatible MP4 files directly, but you can use
> > >> +  <application>MEncoder</application> to create the video and audio, 
> > >and then
> > >> +  use an external program such as <application>mp4creator</application> 
> > >to
> > >> +  remux into an MP4 container.</para>
> > >
> > >this is not true, i do have a ipod and mencoder can with lavf generate 
> > >working
> > >.mp4 files, so please remove this nonsense and use mencoder with lavf, if 
> > >it
> > >doesnt work send a bugreport and ill fix it
> > 
> > Did you save the commandline you used to encode for iPod?
> 
> no, but heres a new working one
> 
> mencoder somevideo.avi -ovc lavc -oac lavc -lavcopts vcodec=mpeg4:v4mv:mbd=2:trell:aic=2:cmp=2:subcmp=2:acodec=aac:vglobal=1:aglobal=1:vbitrate=1000:abitrate=128 -vf scale=320:180 -of lavf -lavfopts i_certify_that_my_video_stream_does_not_use_b_frames -info name=menctest -o menctest.mp4
> 
> the resolution can be increased upto 320x240, lame and x264 should work too

actually this is wrong, iam repeating what these loonys say witout checking,
sorry, ive checked and
mpeg4 640x360 at 2mb/sec average bitrate works perfectly fine too that is
without any weird special ipod tags at least i dont remember that any where
ever added to lavf, note i didnt try higher resolutions or bitrates
yet ...

file was uploaded to ipod with gtkpod ...

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The educated differ from the uneducated as much as the living from the
dead. -- Aristotle 
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