import { ExtendedVideoFrame } from "../frame";
import { MFXTransformStream } from "../stream";
/**
 * @group Visualization
 */
export declare class PaintToCanvas extends WritableStream<ExtendedVideoFrame> {
    constructor(canvas: HTMLCanvasElement);
}
/**
 * @group Visualization
 */
export declare class PassthroughCanvas extends MFXTransformStream<ExtendedVideoFrame, ExtendedVideoFrame> {
    get identifier(): string;
    constructor(canvas: HTMLCanvasElement);
}