> On Jan 21, 2020, at 12:37 PM, Thomas Guilbert <tguilb...@google.com> wrote: > > Hello, > I'm reaching out to see if webkit would like to weigh in on the following > proposal: > https://discourse.wicg.io/t/proposal-video-requestanimationframe/3691 > <https://discourse.wicg.io/t/proposal-video-requestanimationframe/3691> > The HTMLVideoElement.requestAnimationFrame() API allows web developers to be > notified when a video frame has been presented for composition, and provides > metadata for that frame. > If you want to try it out, a prototype is available in Chromium Dev, behind > the enable-experimental-web-platform-features flag.
This is not official feedback, but I have some issues with the proposal. First, the name is confusing. It sounds like you're requesting a frame from the video, but it's really a "frame available" callback. Why not call it onFrameAvailable()? Second, its interaction with normal requestAnimationFrame() and the HTML event loop needs to be better defined. Where in in the https://html.spec.whatwg.org/multipage/webappapis.html#event-loop-processing-model <https://html.spec.whatwg.org/multipage/webappapis.html#event-loop-processing-model> do these callbacks fire? Simon
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