[Matroska-devel] EBML data type constraints

wm4 nfxjfg at googlemail.com
Tue Jun 23 18:12:18 CEST 2015


On Tue, 23 Jun 2015 08:44:15 -0700
Ralph Giles <giles at thaumas.net> wrote:

> On 2015-06-23 6:30 AM, wm4 wrote:
> >> Is a 0 sized (un)signed integer allowed?
> > I'd vote no. Didn't we discuss this already and concluded they're not
> > allowed? But maybe I don't remember correctly.
> 
> That would be nice, but I worry it's too late. The EBML RFC has said for
> a decade that zero-length integer values represent zero. We're still
> getting away with rejecting such files in Firefox, per the matroska
> spec, but not all tools do.
> 
> http://matroska.org/technical/specs/rfc/index.html sec. 2.4
> https://bugzilla.mozilla.org/show_bug.cgi?id=778436

Interesting. It's the first time I've seen such a file ever.


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