[Webkit-unassigned] [Bug 231353] New: incoming H.264 video is not correctly color managed

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=231353

            Bug ID: 231353
           Summary: incoming H.264 video is not correctly color managed
           Product: WebKit
           Version: WebKit Local Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebRTC
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: heycam at apple.com
                CC: youennf at gmail.com

Attaching a few tests, which use canvas.captureStream(), RTCConnectionPeer, and <video> to convert an sRGB canvas to a video, locally.  In Safari on Monterey, the colors are not quite right.  Debugging showed that the CMSampleBuffers that are provided by the VTDecompressionSession have the VT default guessed color space attachments of Rec.601.  I think these should be sRGB, as that's the default for WebRTC streams.

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