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Re: [Cellar] Matroska Elements to support frame side data

Steve Lhomme <slhomme@matroska.org> Sun, 18 November 2018 14:03 UTC

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From: Steve Lhomme <slhomme@matroska.org>
Date: Sun, 18 Nov 2018 15:03:13 +0100
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To: Codec Encoding for LossLess Archiving and Realtime transmission <cellar@ietf.org>
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Subject: Re: [Cellar] Matroska Elements to support frame side data
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I did a Pull Request with my proposed additions to handle
BlockAdditional data in a meaningful way:
https://github.com/Matroska-Org/matroska-specification/pull/287

I added Timecode and RAWCooked values but IMO they should be in a
separate document (since the binary extra data will evolve over time,
independently of the Matroska specs). We will need a IANA registry for
each BlockAddIDType value.

The value 0 (Codec Complement) may be explained further.
Le dim. 18 nov. 2018 à 13:07, Steve Lhomme <slhomme@matroska.org> a écrit :
>
> Le lun. 12 nov. 2018 à 18:49, Michael Richardson <mcr@sandelman.ca> a écrit :
> >
> > Steve Lhomme <slhomme@matroska.org> wrote:
> >     > Just as I double check this, it turns out WebM has support for the
> >     > AlphaMode and all the BlockAddition that goes with it.
> >     > https://www.webmproject.org/docs/container/
> >
> > Is there some implication for Matroska?
>
> That means at least we can't deprecate it and we have to make sure
> what we do in the future is compatible with that. We don't want to
> separate the specs. From a "container" perspective it's just a pity
> that it's can't be "contained" in a BlockAdditionMapping. But that's
> the only issue.
>
> > btw: IANA (Michelle) and I had some discussion about how to reserve DocType
> > names for WebM properly, and I think we have a solution.
>
> OK, feel free to share it ;)
>
> > --
> > ]               Never tell me the odds!                 | ipv6 mesh networks [
> > ]   Michael Richardson, Sandelman Software Works        | network architect  [
> > ]     mcr@sandelman.ca  http://www.sandelman.ca/        |   ruby on rails    [
> >
>
>
> --
> Steve Lhomme
> Matroska association Chairman



-- 
Steve Lhomme
Matroska association Chairman

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