import { IFrameSource } from '../../types';

export declare class CanvasFrameSource implements IFrameSource {
    private video;
    private isInitialized;
    private lastWidth;
    private lastHeight;
    private dimensionsCallbacks;
    private resizeObserver;
    initialize(track: MediaStreamTrack): Promise<void>;
    private setupResizeObserver;
    private checkDimensionsChanged;
    onDimensionsChanged(callback: (dimensions: {
        width: number;
        height: number;
    }) => void): void;
    offDimensionsChanged(callback: (dimensions: {
        width: number;
        height: number;
    }) => void): void;
    capture(canvas: HTMLCanvasElement, ctx: CanvasRenderingContext2D): void;
    getVideoDimensions(): {
        width: number;
        height: number;
    };
    dispose(): void;
}