| Summary: | Drawing video in canvas plays with low frame rate | ||||||
|---|---|---|---|---|---|---|---|
| Product: | WebKit | Reporter: | Daniel <danielchasehooper> | ||||
| Component: | Canvas | Assignee: | Nobody <webkit-unassigned> | ||||
| Status: | NEW --- | ||||||
| Severity: | Major | CC: | bfulgham, dino, eric.carlson, jer.noble, kkinnunen, webkit-bug-importer | ||||
| Priority: | P2 | Keywords: | InRadar | ||||
| Version: | Safari Technology Preview | ||||||
| Hardware: | All | ||||||
| OS: | All | ||||||
| Attachments: |
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This seems to work well for me on the macOS Ventura Beta 2 build. Perhaps it is limited to older macOS? I observe the same, looks good on macOS Ventura. But reproduces with STP 148 on macOS 12.5 beta. |
Created attachment 460520 [details] files to reproduce the bug video elements drawn into a canvas (2d or webgl, doesn't matter) has very stuttery playback. video in the canvas will display only every ~4th frame. the attached zip contains an html file that reproduces the issue - serve the html file with a local server and visit in safari. The 2d canvas and webgl canvas will both show the video stuttering, while the <video> element will play back smoothly. Firefox and Chrome both play the video smoothly in both canvas types. Reproduced on safari technology preview 147 Safari 15.5 macOS 12.4 2021 14" MacBook pro