import { clContext as nodenCLContext, OpenCLBuffer } from 'nodencl';
import { RedioPipe, RedioEnd } from 'redioactive';
import { Frame } from 'beamcoder';
interface AnchorParams {
    x: number;
    y: number;
}
interface FillParams {
    xOffset: number;
    yOffset: number;
    xScale: number;
    yScale: number;
}
export declare class Mixer {
    private readonly clContext;
    private readonly width;
    private readonly height;
    private transform;
    private mixAudio;
    private mixVideo;
    private audMixFilterer;
    anchorParams: AnchorParams;
    rotation: number;
    fillParams: FillParams;
    volume: number;
    constructor(clContext: nodenCLContext, width: number, height: number);
    init(srcAudio: RedioPipe<Frame | RedioEnd>[], srcVideo: RedioPipe<OpenCLBuffer | RedioEnd>[]): Promise<void>;
    setAnchor(_layer: number, x: number, y: number): boolean;
    setRotation(_layer: number, angle: number): boolean;
    setFill(_layer: number, xPos: number, yPos: number, xScale: number, yScale: number): boolean;
    setVolume(_layer: number, volume: number): boolean;
    getMixAudio(): RedioPipe<Frame | RedioEnd> | undefined;
    getMixVideo(): RedioPipe<OpenCLBuffer | RedioEnd> | undefined;
}
export {};