[mpeg-OTspec] RE: font media types [1 Attachment]

[Levantovsky, Vladimir]

Bob,

Thank you very much for your comments, and I really like your proposed wording for the description of 'font-off' MIME type - I will replace the current one with what you proposed.

Thank you,
Vladimir


From: Bob Hallissy [mailto:bobh528 at yahoo.com]
Sent: Thursday, April 07, 2011 2:35 PM
To: Levantovsky, Vladimir
Cc: mpeg-OTspec at yahoogroups.com; lemon at adobe.com; chris at w3.org; tabatkins at google.com; karsten.luecke at kltf.de; singer at apple.com
Subject: Re: [mpeg-OTspec] RE: font media types [1 Attachment]


- application/font-off - to be used as a generic font type that identifies a font resource compliant with ISO OFF / OpenType format (identified by .otf extension);

a) Does this imply that OFF fonts MUST NOT have .ttf extension? I was unaware of that.

b) I would like to re-visit the issue raised earlier (5 April) by Sairus Patel regarding the definition of "compliance with ISO OFF". In particular, unless ISO 14496-22 specifically prohibits a font from including of any sfnt table tags other than those listed within the spec (and I don't think it does, but maybe I'm wrong), then one cannot say that, for example, a font is not compliant just because it contains AAT or Graphite tables.

Now if we want to define "application/font-off" as being constrained to OFF fonts that contain only those sfnt table tags as defined in the spec, then we can certainly do that -- we just cannot couch that constraint simply in terms of "compliance" with the spec. For example, we could say something like:

- application/font-off - to be used as a generic font type that identifies a font resource compliant with ISO OFF / OpenType format and which contains only sfnt tables documented by the OFF specification

Regards,

Bob Hallissy
SIL International
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