[Ffmpeg-devel] Re: [PATCH] mpegvideo remove fourcc upper case conversion

Baptiste Coudurier baptiste.coudurier
Wed Aug 23 16:27:17 CEST 2006

Rich Felker wrote:
> On Wed, Aug 23, 2006 at 03:45:19PM +0200, Baptiste Coudurier wrote:
>> Hi
>> Michael Niedermayer wrote:
>>> [...]
>>>> Divx in mov is non standard
>>> disagree, mov is a generic container like avi, mkv, nut, ...
>>> futhermore i said already that we cannot and will not drop support for
>>> non standard stuff, if you keep trolling about this then ill ignore you
>>> btw, you can fork ffmpeg anytime if you want
>> Maybe right for mov but I disagree for mp4/3gp. Those are strictly
>> defined (there is a close saying about non defined atoms which must be
>> 'reserved', mp4 even more strict since stsd 'fourcc' is not a way to
>> identify codecs, object type id must be used), assume 14496-12 and
>> supersiding specs are the ref, those formats still evolve and get new
>> definitions (mjp2, 3g2, mp4). Also www.mp4ra.org defines standard object
>> type ids.
>> You cannot put whatever fourcc in it, that's just non standard.
>> You basically do what you want with avi/nut, dunno about mkv. That is
>> not the case with mp4/3gp.
>> That is a point of view. History has proved that a non strict container
>> leads to ugly hacks (avi, mkv, will see about nut). And yes let's quit
>> trolling.
> And you've just proved to us that a strict container leads to the
> exact same hacks!!
> Rich

Which ones ? Did I talk about something else than 3gp/mp4 here ? Those
don't need ugly hacks. "Maybe right for mov" thats what is written.

Baptiste COUDURIER                              GnuPG Key Id: 0x5C1ABAAA
SMARTJOG S.A.                                    http://www.smartjog.com
Key fingerprint                 8D77134D20CC9220201FC5DB0AC9325C5C1ABAAA
Phone: +33 1 49966312

More information about the ffmpeg-devel mailing list