import { clContext as nodenCLContext, OpenCLBuffer } from 'nodencl';
import { RedioPipe, RedioEnd } from 'redioactive';
import { Frame } from 'beamcoder';
import { VideoFormat } from '../config';
import { ClJobs } from '../clJobQueue';
export interface AudioMixFrame {
    frames: Frame[][];
    mute: boolean;
}
export interface AnchorParams {
    x: number;
    y: number;
}
export interface FillParams {
    xOffset: number;
    yOffset: number;
    xScale: number;
    yScale: number;
}
export declare type MixerParams = {
    anchor: AnchorParams;
    rotation: number;
    fill: FillParams;
    volume: number;
};
export declare const MixerDefaults: MixerParams;
export declare class Mixer {
    private readonly clContext;
    private readonly consumerFormat;
    private readonly clJobs;
    private transform;
    private mixAudio;
    private mixVideo;
    private audMixFilterer;
    private mixParams;
    private srcLevels;
    private muted;
    private running;
    private audDone;
    private vidDone;
    constructor(clContext: nodenCLContext, consumerFormat: VideoFormat, clJobs: ClJobs);
    init(sourceID: string, srcAudio: RedioPipe<AudioMixFrame | RedioEnd>, srcVideo: RedioPipe<OpenCLBuffer | RedioEnd>, srcFormat: VideoFormat): Promise<void>;
    release(): void;
    setMixParams(mixParams: MixerParams): void;
    setVolume(volume: number, mute?: boolean): boolean;
    getAudioPipe(): RedioPipe<Frame | RedioEnd> | undefined;
    getVideoPipe(): RedioPipe<OpenCLBuffer | RedioEnd> | undefined;
}