`createVideoFrameCallback`

[nathanbabcock]

I'd like to contribute a primitive for the requestVideoFrameCallback API.

Fundamentally it works the same as requestAnimationFrame, but with some convenient features for videos such as not requesting redundant frames when the video is paused, or polling higher than the video's framerate.

Implementation

Since it's so similar, I'd match the API of createRAF almost exactly. They might be so similar that they could share a common implementation, but I'd leave the up to the package maintainers and create a parallel version for now.

The only relevant difference might be that if the video element is removed, the callback could be cancelled reactively (for example if it took an Accessor<HTMLVideoElement> as an input). But maybe that should be left up to the user, since it doesn't really save that much mental overhead, and the user would still need to handle assigning the ref and clearing it in an onCleanup.

Naming

Any recommendations?

• createRequestVideoFrameCallback is a bit of a mouthful, but it's the most descriptive
• createRVFC matches the naming convention of createRAF, but it's pretty cryptic at a glance.
• createVideoFrameCallback is my personal preference, dropping the request verb in favor of the conventional create (or make)

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Would anyone else find this useful? Any opinions on the best approach?