import { PayloadDescriptor } from './payload-description';
/**
 * @class
 * Describes the payload of a buffer, how many samples it contains of that, and time-contextual information
 * for decrypting/decoding/presentation of the buffer.
 *
 * Generic media-key and parameters can be included as metadata around the buffer.
 *
 * Many buffer "slices" can (but must not) share one buffer-properties object instance, where that has advantages.
 *
 */
export declare class BufferProperties extends PayloadDescriptor {
    samplesCount: number;
    isBitstreamHeader: boolean;
    isKeyframe: boolean;
    timestampDelta: number;
    mediaKey: any;
    tags: Set<string>;
    /**
     * NOTE: Keep this in sync with SocketDescriptor.fromJson
     * @param props
     */
    static clone(props: BufferProperties): BufferProperties;
    static fromTransferable(props: BufferProperties): BufferProperties;
    constructor(mimeType?: string, sampleRateInteger?: number, sampleDepth?: number, sampleDurationNumerator?: number, samplesCount?: number, isBitstreamHeader?: boolean, isKeyframe?: boolean, timestampDelta?: number, mediaKey?: any, tags?: Set<string>);
    clone(): BufferProperties;
    /**
     * Normal units [s]
     */
    getSliceDuration(): number;
    toString(): string;
}