/**
 * fMP4 Demuxer — Wraps mp4box.js for robust fMP4 demuxing.
 *
 * Extracts raw NAL units from fragmented MP4 segments (HEVC or H.264).
 * Uses mp4box.js for ISO BMFF parsing — supports all box types,
 * extended sizes, multi-track, and proper hvcC/avcC extraction.
 */
export interface DemuxedSample {
    trackId: number;
    /** Raw NAL units (no start code, no length prefix) */
    nalUnits: Uint8Array[];
    /** Presentation timestamp (in timescale units) */
    pts: number;
    /** Decode timestamp */
    dts: number;
    /** Duration (in timescale units) */
    duration: number;
    /** Whether this is a keyframe (IDR/CRA) */
    isKeyframe: boolean;
}
export interface VideoTrackInfo {
    trackId: number;
    codec: string;
    timescale: number;
    width: number;
    height: number;
    nalLengthSize: number;
}
/**
 * fMP4 Demuxer backed by mp4box.js.
 *
 * @example
 * ```ts
 * const demuxer = new FMP4Demuxer();
 * await demuxer.parse(initSegmentBytes);
 * const samples = await demuxer.extractSamples(mediaSegmentBytes);
 * ```
 */
export declare class FMP4Demuxer {
    private _mp4box;
    private _videoTrack;
    private _pendingSamples;
    private _offset;
    private _ready;
    private _readyPromise;
    private _readyResolve;
    constructor();
    /** Get the video track info (available after parse) */
    get videoTrack(): VideoTrackInfo | null;
    /** Whether the init segment has been parsed */
    get isReady(): boolean;
    /**
     * Feed data to the demuxer. Works for both init and media segments.
     * Call with the init segment first, then media segments.
     */
    feed(data: Uint8Array): void;
    /**
     * Wait for the init segment to be parsed (moov box found).
     */
    waitReady(): Promise<void>;
    /**
     * Drain all pending samples extracted so far.
     */
    drainSamples(): DemuxedSample[];
    /**
     * Convenience: parse init segment and wait for ready.
     */
    parseInit(data: Uint8Array): Promise<void>;
    /**
     * Convenience: feed a media segment and return extracted samples.
     */
    parseSegment(data: Uint8Array): DemuxedSample[];
    /** Flush any remaining data in the parser */
    flush(): void;
    private _onReady;
}
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