[Ffmpeg-devel] Re: [PATCH] mpegvideo remove fourcc upper case conversion
Wed Aug 23 21:09:50 CEST 2006
On Wed, Aug 23, 2006 at 04:27:17PM +0200, Baptiste Coudurier wrote:
> 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.
I mean: "You cannot put whatever fourcc in it, that's just non
standard." Since people apparently _do_ put whatever fourcc they want
in it, the same happens with mov/mp4...
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