/**
 * Opus documentation, https://opus-codec.org/docs/
 * Ogg Encapsulation for the Opus Audio Codec, https://datatracker.ietf.org/doc/html/rfc7845.html
 *
 * Packet Organization:
 *
 *      Page 0         Pages 1 ... n        Pages (n+1) ...
 *    +------------+ +---+ +---+ ... +---+ +-----------+ +---------+ +--
 *    |            | |   | |   |     |   | |           | |         | |
 *    |+----------+| |+-----------------+| |+-------------------+ +-----
 *    |||ID Header|| ||  Comment Header || ||Audio Data Packet 1| | ...
 *    |+----------+| |+-----------------+| |+-------------------+ +-----
 *    |            | |   | |   |     |   | |           | |         | |
 *    +------------+ +---+ +---+ ... +---+ +-----------+ +---------+ +--
 *    ^      ^                           ^
 *    |      |                           |
 *    |      |                           Mandatory Page Break
 *    |      |
 *    |      ID header is contained on a single page
 *    |
 *    'Beginning Of Stream'
 */
export class OPUS {
    static getFrameDuration(samples: any, timescale?: number): number;
    /**
     * Identification Header + Comment Header
     * @param {Uint8Array} data
     */
    static parseHeaderPackets(data: Uint8Array): {
        outputGain: number;
        sampleRate: number;
        channelCount: number;
        config: Uint8Array<ArrayBufferLike>;
        codec: string;
        originCodec: string;
    } | undefined;
}