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Add spatialScalability to VideoConfiguration #189

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merged 4 commits into from
Apr 5, 2022
Merged

Add spatialScalability to VideoConfiguration #189

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67794ca
Add spatialScalability to VideoConfiguration
drkron Jan 17, 2022
25e1288
Fix duplicate definition
drkron Jan 17, 2022
73b1fc4
Review comments
drkron Jan 25, 2022
ee9acf7
Clarify default mode for scalabilityMode
drkron Feb 8, 2022
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11 changes: 11 additions & 0 deletions index.bs
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Expand Up @@ -380,6 +380,7 @@ spec: secure-contexts; urlPrefix: https://www.w3.org/TR/secure-contexts/
ColorGamut colorGamut;
TransferFunction transferFunction;
DOMString scalabilityMode;
boolean spatialScalability;
};
</pre>

Expand Down Expand Up @@ -476,8 +477,18 @@ spec: secure-contexts; urlPrefix: https://www.w3.org/TR/secure-contexts/
<p>
If present, the <dfn for='VideoConfiguration' dict-member>scalabilityMode</dfn>
member represents the scalability mode as defined in [[webrtc-svc]].
Scalability mode is only applicable to the MediaEncodingType webrtc.
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</p>

<p>
If present, the <dfn for='VideoConfiguration' dict-member>spatialScalability</dfn>
member represents the ability to do spatial prediction, that is,
using frames of a resolution different than the current resolution as
dependencies. This is closely coupled to {{scalabilityMode}} in the
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sense that streams that are produced using certain scalability modes
can only be decoded if spatalScalability is supported. Spatial
scalability is only applicable to MediaDecodingConfiguration.
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</p>
</section>

<section>
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