Function AddRotations

src/video_frame.ts:1084–1091

(baseRotation: number, baseFlip: boolean, rotation: number)

};

const AddRotations = (baseRotation: number, baseFlip: boolean, rotation: number): number => {
	// 1. If baseFlip is false, let combinedRotation be |baseRotation| + |rotation|.
	const combinedRotation = baseFlip ? baseRotation - rotation : baseRotation + rotation;
	// 2. Let fullTurns be the greatest multiple of 360 less than or equal to combinedRotation.
	const fullTurns = Math.floor(combinedRotation / 360) * 360;
	// 3. Return |combinedRotation| - |fullTurns|.
	return Math.abs(combinedRotation) - Math.abs(fullTurns);
};

const ValidateVideoFrameInit = (
	init: VideoFrameInit,