[Matroska-devel] [proposal] add new element DefaultDeocdedFieldDuration

Steve Lhomme slhomme at matroska.org
Sat Dec 29 23:52:43 CET 2012


OK then, for that and the rest. Using fraction timestamps will be a huge
step anyway, we know it.

Steve


On Sat, Dec 29, 2012 at 11:40 PM, Moritz Bunkus <moritz at bunkus.org> wrote:

> Hey,
>
> On Sat, Dec 29, 2012 at 11:32 PM, Steve Lhomme <slhomme at matroska.org>
> wrote:
>
> > Why is this field not TimecodeScale ? In the future we want timestamps
> to be
> > fractions, that mean they would all involve the scale at some point. So
> it
> > should be done now too.
>
> Because neither is DefaultDuration. I also think it's a very, very bad
> idea to scale it; especially with the 1ms granularity which we use by
> default. That would make most values pretty imprecise (e.g. N/ATSC
> broadcast: 1000000000ns/(60/1.001) = 16683333ns, scaled to 1ms
> precision => 16 or 17, depending on what the muxer writes).
>
> Kind regards,
> mosu
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-- 
Steve Lhomme
Matroska association Chairman
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