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Re: [csswg-drafts] [cssom-1][mediaqueries-5][css-color] Dealing with bi-plane (video/graphics) when reporting values (#4471)

From: mwatson2 via GitHub <sysbot+gh@w3.org>
Date: Thu, 31 Oct 2019 01:33:38 +0000
To: public-css-archive@w3.org
Message-ID: <issue_comment.created-548179959-1572485617-sysbot+gh@w3.org>
> That single Boolean will struggle with content that uses Rec.2020 colorspace and the HLG transfer function, though. "Everything uses PQ" is a Film/Movie-centric view; it is true there but not so much for News or Live Sports, for example.

PG vs HLG is important for the *can this be rendered* question (which is answered by `decodeInfo()` but not for the *should I choose this one* (when I have a choice).

> If we opt for this enum, should we define a rubric by which to judge the dynamic range of a display?

Good luck with that ;-) The question I want to answer is whether it would produce a better result to send HDR content vs SDR when I have both available and the device can render both. At least at the margins this is a matter of opinion. So then I think we should leave this to UAs, as agents of the user, who is the one with the opinion.

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Received on Thursday, 31 October 2019 01:33:40 UTC

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