[Webkit-unassigned] [Bug 250813] REGRESSION (iOS16): Component above video is turning gray on iOS

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Feb 10 17:22:37 PST 2023


--- Comment #6 from Peter <peter.m.coles at gmail.com> ---
> In order to display the "high dynamic range" colors in the video, the device's backlight ramps up to produce more visible light. SDR content is then ramped down by an equal amount to account for this. The SDR text colors are perceived as "grey" when displayed next to the super white colors of the video.
> So this is HDR videos behaving correctly, or at least, as expected.

Does it make sense that the text initially appears white and slowly fades to *appearing* gray over the course of a couple seconds?

Is there any way to counteract this apart from re-encoding the color space as something like Rec. 709?

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