[FFmpeg-devel] [PATCH] add uuid box to MP4 to make h.264 play on iPod

Michael Niedermayer michaelni
Sat Feb 23 17:20:50 CET 2008


On Sat, Feb 23, 2008 at 12:25:16PM +0000, M?ns Rullg?rd wrote:
> Mark Himsley <mark at mdsh.com> writes:
> 
> > Attached patch adds new -f <format> of ipod264. When using that format
> > the file is created as with mp4 format but with the addition of the
> > uuid required for the file to be transferred from iTunes to an iPod
> > that plays "Low Complexity" Baseline Profile H.264. Tested syncing
> > with iPod Touch.
> 
> I don't like inventing new, fake formats for each and every
> variation.  

I dont like it either but its easy, simple and doesnt really add hard to
maintain code ...
Also changing the fake formats to some other system is seperate of adding
new ones IMHO.


> Things like this should be passed as flags/parameters to
> the mp4 muxer instead.  If there is no way of doing that currently,
> lavf should be extended to support it.

This causes problems, because the following is stored per AVOutputFormat:
* default codecs
* list of supported codecs as well as their codec tags

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

The greatest way to live with honor in this world is to be what we pretend
to be. -- Socrates
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