[Ffmpeg-cvslog] Re: MPEG-4 based AMC file format

[QuickTime]

> 
> Hi,
> 
> > Here some infos about the file format i found on a quick search.
> >
> > http://viscom.kddlabs.co.jp/en/ezmovie/ezmovie_FAQ.htm
> 
> Thanks, but unfortunately those links don't say much about the format.
> 
> AMC is a proprietary file format, largely based on MPEG-4 (Quicktime) file
> format from my investigation - reverse engineering? - so far.
> 
> The bitstream itself is MPEG-4 compliant, so MPlayer can read it without
> problem.
> 
> What I am still hitting my head against is getting an AMC capable phone to read
> my FFMPEG made files.
> 
> One thing that could help me...
> in libavformat/movenc.c : mov_write_esds_tag()
> what is the "flags" byte for?
> In AMC files, it is set to 0x10.
> And the track number starts from 1 (instead of 0).

The track number always starts from 1 in mov/mp4/3gp,but not 0!!

> 
> Regards,
> Guilhem.
>