import { HMSPluginSupportResult, HMSVideoPlugin, HMSVideoPluginType } from '@100mslive/hms-video-store';
import { HMSVirtualBackground, HMSVirtualBackgroundTypes } from './interfaces';
export declare class HMSVBPlugin implements HMSVideoPlugin {
    private TAG;
    private background;
    private backgroundType;
    private segmentation;
    private outputCanvas?;
    private outputCtx?;
    private gifFrames;
    private gifFramesIndex;
    private gifFrameImageData;
    private tempGifCanvas;
    private tempGifContext;
    private prevResults?;
    private input?;
    constructor(background: HMSVirtualBackground, backgroundType: HMSVirtualBackgroundTypes);
    isSupported(): boolean;
    isBlurSupported(): boolean;
    checkSupport(): HMSPluginSupportResult;
    getName(): string;
    getPluginType(): HMSVideoPluginType;
    init(): Promise<void>;
    /**
     * For bgType HMSVirtualBackgroundTypes.IMAGE pass bg as an image element
     * For bgType HMSVirtualBackgroundTypes.VIDEO pass video
     * For bgType HMSVirtualBackgroundTypes.GIF pass the gif url
     * @param {HMSVirtualBackground} background
     * @param {HMSVirtualBackgroundTypes} backgroundType
     */
    setBackground(background: HMSVirtualBackground, backgroundType: HMSVirtualBackgroundTypes): Promise<void>;
    getBackground(): HMSVirtualBackground;
    stop(): void;
    processVideoFrame(input: HTMLCanvasElement, output: HTMLCanvasElement, skipProcessing?: boolean): Promise<void>;
    private setImage;
    private handleResults;
    private loadGIF;
    private log;
    private renderBackground;
    private renderBlur;
    private renderGIF;
}
export { HMSVirtualBackgroundTypes };