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Re: [Cellar] enumeration lists for EBML Schema

Steve Lhomme <slhomme@matroska.org> Sat, 04 February 2017 13:23 UTC

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From: Steve Lhomme <slhomme@matroska.org>
Date: Sat, 04 Feb 2017 14:23:12 +0100
Message-ID: <CAOXsMFKVhN+cLFvj-J18JBZDvP-3HkKiKSsHhMqUpXBUO+mU-w@mail.gmail.com>
To: Dave Rice <dave@dericed.com>
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Cc: Codec Encoding for LossLess Archiving and Realtime transmission <cellar@ietf.org>
Subject: Re: [Cellar] enumeration lists for EBML Schema
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Both LGTM. Reto pointed a possible typo but other than that it's fine.

2017-02-02 1:01 GMT+01:00 Dave Rice <dave@dericed.com>:
> Hi cellar,
>
> These pull requests relate to an issue Steve opened at https://github.com/Matroska-Org/ebml-specification/issues/114 for defining an enumeration list for EBML Elements.
>
> This pull request includes an update to the EBMLSchema.xsd to allow <enum> elements along with documentation in the EBML spec, https://github.com/Matroska-Org/ebml-specification/pull/130. And this updates the EBML Schema for Matroska accordingly: https://github.com/Matroska-Org/matroska-specification/pull/92. This is inspired by the restriction element of XML Schemas (http://www.w3schools.com/xml/schema_facets.asp).
>
> So:
>
> <element name="TrackType" path="1*1(\Segment\Tracks\TrackEntry\TrackType)" id="0x83" type="uinteger" minOccurs="1" maxOccurs="1" minver="1" range="1-254”>
>   <documentation lang="en">A set of track types coded on 8 bits (1: video, 2: audio, 3: complex, 0x10: logo, 0x11: subtitle, 0x12: buttons, 0x20: control).</documentation>
> </element>
>
> becomes:
>
> <element name="TrackType" path="1*1(\Segment\Tracks\TrackEntry\TrackType)" id="0x83" type="uinteger" minOccurs="1" maxOccurs="1" minver="1" range="1-254">
>   <documentation lang="en">A set of track types coded on 8 bits.</documentation>
>   <restriction>
>     <enum value="1" label="video" />
>     <enum value="2" label="audio" />
>     <enum value="3" label="complex" />
>     <enum value="16" label="logo" />
>     <enum value="17" label="subtitle" />
>     <enum value="18" label="buttons" />
>     <enum value="32" label="control" />
>   </restriction>
> </element>
>
> This impacts the definition of the following Elements:
>
> ChapterTranslateCodec
> TrackType
> TrackTranslateCodec
> FlagInterlaced
> FieldOrder
> StereoMode
> OldStereoMode
> DisplayUnit
> AspectRatioType
> MatrixCoefficients
> ChromaSitingHorz
> ChromaSitingVert
> Range
> TransferCharacteristics
> Primaries
> ProjectionType
> TrackPlaneType
> ChapProcessTime
>
> Comments welcome,
> Dave
> _______________________________________________
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-- 
Steve Lhomme
Matroska association Chairman

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