Baseline 2024
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The cancelVideoFrameCallback() method of the HTMLVideoElement interface cancels a previously-registered video frame callback.
cancelVideoFrameCallback(id)
id
A number representing the ID of the video frame callback you want to cancel. This will be the value returned by the corresponding HTMLVideoElement.requestVideoFrameCallback call.
None (undefined).
This example shows how to use cancelVideoFrameCallback() to cancel a previously-registered video frame callback.
const updateCanvas = (now, metadata) => {
// Do something with the frame
// â¦
// Re-register the callback to run on the next frame
// It's important to update the videoCallbackId on each iteration
// so you can cancel the callback successfully
videoCallbackId = video.requestVideoFrameCallback(updateCanvas);
};
// Initial registration of the callback to run on the first frame
let videoCallbackId = video.requestVideoFrameCallback(updateCanvas);
// â¦
// Cancel video frame callback using the latest videoCallbackId
video.cancelVideoFrameCallback(videoCallbackId);
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