[vorbis-dev] Content identifier
giles at xiph.org
Tue Jan 28 14:30:25 PST 2003
On Tuesday, January 28, 2003, at 10:17 pm, Linus Walleij wrote:
> This boils down to the fact that the namespace for Ogg codecs is simply
> 6 characters (or rather 6 bytes) and thats it. Sound reasonable, as the
> world will probably not be overly crowded with codecs after all
> not the 256^6 that this scheme makes possible). AVI files settled for 4
> characters only if I'm not mistaken.
That's a subset of what the spec allows consistent with usage, yes.
Note that the speex magic is really 'speex ' (8 bytes), and in all
three codecs the magic is followed by a version marker which may at
some point become important to distinguish. That's why I want to be
vague about the number of bytes required for type determination.
--- >8 ----
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