Schema for Composite Font Representation format (was RE: [mpeg-OTspec] AHG Kick-off)

Ken Lunde lunde at
Mon Feb 27 20:28:25 CET 2012


I have no experience writing schemas, meaning that someone else would need to step up to the proverbial plate to take this on, but I would like to be involved in reviewing the result, which is likely to become a learning exercise on my part.


-- Ken

On Feb 24, 2012, at 1:44 PM, Levantovsky, Vladimir wrote:

> Apologies for a delayed response.
> I agree that developing a schema for ISO/IEC 14496-28:2012 would be something that is not only doable and in scope of our work but also highly desirable. I am also wondering (and will find out and report back to the AHG) if the schema should be considered a part of reference implementation and, as such, would be considered as an amendment to part 5 "Reference software implementation" (ISO/IEC 14496-5). This part *is* available for free download so making the schema for CFR an amendment to part 5 would establish a proper home for it and provide unrestricted access for download.
> Thank you,
> Vladimir
>> -----Original Message-----
>> From: mpeg-OTspec at [mailto:mpeg-OTspec at]
>> On Behalf Of Ken Lunde
>> Sent: Saturday, February 18, 2012 10:26 AM
>> To: suzuki toshiya
>> Cc: OTspec mpeg-OTspec
>> Subject: Re: [mpeg-OTspec] AHG Kick-off
>> Suzuki-san,
>> Thank you for confirming the (somewhat sad) reality of working on
>> standards development. Given that ISO/IEC 14496-28:2012 is about 25
>> pages, its price shouldn't be extraordinarily high, and if memory
>> serves, the price associated with ISO standards is largely based on the
>> number of pages.
>> With regard to developing a schema for ISO/IEC 14496-28:2012, Vladimir
>> can correct me if I am wrong or out of line, but this seems like
>> something that is definitely within the scope of the AHG, something
>> that would benefit developers, and something that could be distributed
>> freely.
>> Regards...
>> -- Ken
>> On Feb 17, 2012, at 5:26 PM, suzuki toshiya wrote:
>>> I'm not sure whether SC29 has a special convention, but when I've
>>> participated a development of an JTC1 spec in SC34, the convenor
>>> told me that JTC1 has no convention giving a free-charged copy for
>>> the editor.
>>> By the way, it should be discussed if it is possible for this AHG
>>> to develop a schema for ISO/IEC 14496-28 and distribute it freely,
>>> or such free schema should not be produced as "by SC29/WG11 Font
>> AHG".
>>> Regards,
>>> mpsuzuki
>>> James Cloos wrote:
>>>>>>>>> "LV" == Levantovsky, Vladimir
>> <vladimir.levantovsky at> writes:
>>>> LV> I am afraid the copy of the standard can only be obtained via
>> ISO Web Store
>>>> If those who participated in creating a spec cannot get a copy of it
>> w/o
>>>> wasting cash (for which at least some of us have zero budget), then
>> the
>>>> iso lacks any value as a standards organization.
>>>> The last draft of the composite font format posted here, before
>> things
>>>> went off list, was far from ready for publication.  One would at the
>>>> very least like to know whether any of the issues I wrote about were
>>>> addressed.  (Especially sub-font naming.  Specifying subfonts only
>> by
>>>> postscript name, as I previously wrote, makes implementation
>> impossible
>>>> on current fontconfig-based systems.)
>>>> -JimC
>> ------------------------------------
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