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Re: [Cellar] ATRAC1 codec ID for Matroska

Jerome Martinez <jerome@mediaarea.net> Wed, 05 October 2022 06:32 UTC

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References: <CAO1ejfRd+1BrJ+w6PMEor3b_8Q6593Mujna1a81AG0CarrGA=w@mail.gmail.com> <87k05futn8.fsf@bunkus.online>
From: Jerome Martinez <jerome@mediaarea.net>
Cc: sir68k@gmail.com
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Subject: Re: [Cellar] ATRAC1 codec ID for Matroska
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On 05/10/2022 00:07, Moritz Bunkus wrote:
> A_ATRAC/<something> has the advantage of being extensible with 
> multiple versions.

Skimming https://en.wikipedia.org/wiki/ATRAC I read:
"ATRAC3 (not to be confused with version 3 of original ATRAC)"

So it needs to be clear what "<something>" refers to.

We already have for incompatible formats with same kind of name the 
version without a slash e.g. "V_MPEG1" and "V_MPEG2", so maybe V_ATRAC 
or V_ATRAC1 makes more sense here, with a number after the slash being 
the version of ATRAC1 if needed (incompatibility between versions of 
ATRAC1?)

Sir68k, a PR on 
https://github.com/ietf-wg-cellar/matroska-specification/blob/master/codec_specs.md 
with implementation details would be great!

Jérôme

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