[Webkit-unassigned] [Bug 197384] New: [CG] Adding support for HEIF-sequence (‘public.heics’) images

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=197384

            Bug ID: 197384
           Summary: [CG] Adding support for HEIF-sequence (‘public.heics’)
                    images
           Product: WebKit
           Version: WebKit Nightly Build
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Images
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: sabouhallawa at apple.com

We need to add support for these images in two places:

1) ImageDecoderCG::repetitionCount(): Since HEICS images do not support loopCount, we will be returning RepetitionCountInfinite.
2) ImageDecoderCG::frameDurationAtIndex(): We need to read the values of the following dictionary keys for the frame duration kCGImagePropertyHEICSUnclampedDelayTime and kCGImagePropertyHEICSDelayTime.

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