/**
 * TranscodePipeline — Orchestrates HEVC → H.264 transcoding for MSE playback.
 *
 * Pipeline per segment:
 *   fMP4 HEVC segment → mp4box.js demux → HEVC NALs → WASM decode → YUV frames
 *   → VideoEncoder(H.264) → fMP4 mux → MSE SourceBuffer → <video>
 */
export interface TranscodePipelineConfig {
    videoElement: HTMLVideoElement;
    wasmUrl?: string;
    /** URL to the .wasm binary, forwarded to Emscripten's locateFile.
     *  Required when assets are loaded from a different origin than the page. */
    wasmBinaryUrl?: string;
    fps?: number;
    bitrate?: number;
}
export declare class TranscodePipeline {
    private _config;
    private _decoder;
    private _demuxer;
    private _encoder;
    private _muxer;
    private _mse;
    private _initialized;
    private _mseInitialized;
    private _timescale;
    private _baseDecodeTime;
    private _fps;
    constructor(config: TranscodePipelineConfig);
    /** Initialize the WASM decoder */
    init(): Promise<void>;
    /**
     * Process an fMP4 init segment (moov with HEVC codec config).
     * Extracts track info via mp4box.js.
     */
    processInitSegment(data: Uint8Array): Promise<void>;
    /**
     * Process an fMP4 media segment containing HEVC video.
     * Demuxes → decodes → re-encodes → muxes → appends to MSE.
     */
    processMediaSegment(data: Uint8Array): Promise<void>;
    /**
     * Process a raw HEVC bitstream (Annex B format, .265 file).
     */
    processRawBitstream(data: Uint8Array): Promise<void>;
    /** Flush remaining frames at end of stream */
    flush(): Promise<void>;
    /** Clean up all resources */
    destroy(): void;
    private _encodeAndAppend;
}
//# sourceMappingURL=transcode-pipeline.d.ts.map