DASH: parse transferCharacteristics property to better detect hdr
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peaBerberian
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This commit allows to signal HDR AdaptationSets through the API - thanks to the `hdrInfo` property added in v3.26.0 (june 2021) - when an `EssentialProperty` or `SupplementalProperty` element with its `schemeIdUri` attribute is set to `"urn:mpeg:mpegB:cicp:TransferCharacteristics"`. This is as specified in both the `6.2.5.1` and `10.2.3.4` chapters of the DASH-IF IOP the way that transfer function differences between AdaptationSets should be signaled when you have an MPD with both HDR and SDR Adaptation Sets. For now, only the "eotf" (the transfer function) is parsed (though we could also technically parse the `ColourPrimary` and `MatrixCoefficients` parts of those chapters later). The goal is to allow an application to detect when multiple AdaptationSets are present which corresponds to HDR and which corresponds to SDR video content.
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peaBerberian
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DASH: parse `transferCharacteristics` property to better detect hdr
peaBerberian
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Feb 9, 2023
DASH: parse `transferCharacteristics` property to better detect hdr
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This PR allows to signal HDR AdaptationSets through the API - thanks to the
hdrInfoproperty added in v3.26.0 (june 2021) - when anEssentialPropertyorSupplementalPropertyelement with itsschemeIdUriattribute is set to"urn:mpeg:mpegB:cicp:TransferCharacteristics".This is as specified in both the
6.2.5.1and10.2.3.4chapters of the DASH-IF IOP v4.3 the way that transfer function differences between AdaptationSets should be signaled when you have an MPD with both HDR and SDR Adaptation Sets.For now, only the "eotf" (the transfer function) is parsed (though we could also technically parse the
ColourPrimaryandMatrixCoefficientsparts of those chapters later).The goal is to allow an application to detect when multiple AdaptationSets are present which corresponds to HDR and which corresponds to SDR video content.