VideoFrame: copyTo() method

destination

An ArrayBuffer, a TypedArray, or a DataView to copy to.

options Optional

An object containing the following:

rect Optional

The rectangle of pixels to copy from the VideoFrame. If unspecified, the visibleRect will be used. This is in the format of a dictionary object containing:

• x: The x-coordinate.
• y: The y-coordinate.
• width: The width of the frame.
• height: The height of the frame.

layout Optional

A list containing the following values for each plane in the VideoFrame:

offset

An integer representing the offset in bytes where the given plane begins.

stride

An integer representing the number of bytes, including padding, used by each row of the plane. Planes may not overlap. If no layout is specified, the planes will be tightly packed.

A Promise that resolves to the layout of the copy when the copy has completed.

The following example copies the entire contents of videoFrame.

let buffer = new Uint8Array(videoFrame.allocationSize());
let layout = await videoFrame.copyTo(buffer);