The codecs which have no fourcc in AVI

Hi

To make ivan happy, this thread is dedicated to the issue
of what to do if our selected codec id system doesnt have a
id for a
specific codec
an issue which many other container specs dont seem to care
about ...

so what can be done ...
*  IMO we should make a list of codec ids for codecs which
are
   common but which arent stored in avi normally, well
acually
   we already did make that list (see mailinglist, it was
done
   with the sligtly different goal of avoiding
implementation
   specific ids but when we drop these the rest is what we
need
   here), also note my proposal here is just a small <10
entry
   list nothing bigger

so whats left are "rare" codecs which arent
stored in avi
i think theres just one thing we can do here, and that is
to tell people to contact us to discuss/ register a id for
their codec
whats the difference from that to a nut specific id system?
makng and maintaining a list of all
codecs-implementations-ids vs.
maintaining a list of very few ids, just thouse which are
not 
supported by avi and which people want to use in nut and
where
the designers of the codec didnt specify a recommanded
fourcc
already in their spec

a few random notes ...
* people dont contact microsoft/iso/apple to register their
ids or
  did anyone? i dunno ...
* thouse who will attempt to store codec X in nut for the
first time
  will likely not be the ones who designed the codec and
they will very
  likely not have read the nut spec and as such will not
know how to 
  select a codec id -> they will not contact us

-- 
Michael     GnuPG fingerprint:
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Hi

Michael Niedermayer wrote:
> [...]
> 
> a few random notes ...
> * people dont contact microsoft/iso/apple to register
their ids or
>   did anyone? i dunno ...

http://www.mp4ra.org/ is
referencing atoms, codecs, object type id for
mp4 atm. You can register a codec from them.

> * thouse who will attempt to store codec X in nut for
the first time
>   will likely not be the ones who designed the codec
and they will very
>   likely not have read the nut spec and as such will
not know how to 
>   select a codec id -> they will not contact us
> 

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

Michael Niedermayer wrote:
> [...]
> 
> a few random notes ...
> * people dont contact microsoft/iso/apple to register
their ids or
>   did anyone? i dunno ...
> * thouse who will attempt to store codec X in nut for
the first time
>   will likely not be the ones who designed the codec
and they will very
>   likely not have read the nut spec and as such will
not know how to 
>   select a codec id -> they will not contact us
> 

I would say pick AVI first, then MOV (QDM2, ALAC, QCLP, AMR)
and then
decide on a fourcc. I would say write a paper mentioning TEH
fourcc for
each codec and stick with that fourcc not matter what.

Registering could be done by sending a mail to that mailing
list.

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