[Webkit-unassigned] [Bug 180472] New: looping single frame mp4 causes repaint in <img src=mp4>

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=180472

            Bug ID: 180472
           Summary: looping single frame mp4 causes repaint in <img
                    src=mp4>
           Product: WebKit
           Version: Safari Technology Preview
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Images
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: colin at bendell.ca

Single frame MP4 (h264/hevc) in an <img> tag offers a good alternative to jpg because of hardware decode advantage. However, <img src=mp4> assumes muted looping which causes continual repaints of the viewport

https://colinbendell.github.io/webperf/img-mp4/index.html
https://colinbendell.github.io/webperf/img-mp4/index_hevc.html

For situations where there are 1 (perhaps <=2 ?) frames, the <img src=mp4> should not loop.

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