Method allocationSize

src/video_frame.ts:269–284

* Returns the number of bytes needed to hold a copy of the frame's pixel data.

(options: VideoFrameCopyToOptions = {})

	 * Returns the number of bytes needed to hold a copy of the frame's pixel data.
	 */
	allocationSize(options: VideoFrameCopyToOptions = {}): number {
		// 1. If [[Detached]] is true, throw an InvalidStateError DOMException.
		this.ensureNotClosed();

		// 2. If [[format]] is null, throw a NotSupportedError DOMException.
		if (this.format === null) {
			throw new Error('NotSupportedError: VideoFrame format is null');
		}

		// 3. Let combinedLayout be the result of running the Parse VideoFrameCopyToOptions algorithm with options.
		// 4. If combinedLayout is an exception, throw combinedLayout.
		const combinedLayout = ParseVideoFrameCopyToOptions(this, options);

		// 5. Return combinedLayout's allocationSize.
		return combinedLayout.allocationSize;
	}

	/**
	 * Copies the frame's pixel data to a destination buffer. Returns the layout of the planes in the destination