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[Cellar] EBML element identifier assignment

Tobias Rapp <t.rapp@noa-archive.com> Thu, 07 September 2017 13:33 UTC

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From: Tobias Rapp <t.rapp@noa-archive.com>
To: Codec Encoding for LossLess Archiving and Realtime transmission <cellar@ietf.org>
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Subject: [Cellar] EBML element identifier assignment
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Hi,

just out of curiosity: How are EBML element identifiers chosen which are
used within Matroska? Often-used elements seem to get a shorter
identifier which in turn determines the most significant bits. Are the
remaining bits assigned randomly?

In case some vendor would like to add a new element (theoretical
example, I have no current plans), is there some "reserved range"
similar to the Private Use Area of Unicode?

Regards,
Tobias

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