import xtermHeadless from "@xterm/headless";
declare const Terminal: typeof xtermHeadless.Terminal;
type Terminal = InstanceType<typeof Terminal>;
export declare const INLINE_SIZE_THRESHOLD = 4000000;
export declare const MAX_FRAME_HALVING_ATTEMPTS = 2;
export interface Frame {
    pixels: Uint8Array;
    delay: number;
    width: number;
    height: number;
}
export declare class Recorder {
    private terminal;
    private minIntervalMs;
    private maxDurationMs;
    private onAutoStop?;
    private frames;
    private lastFrameTime;
    private debounceTimer?;
    private maxTimer?;
    private stopped;
    constructor(terminal: Terminal, minIntervalMs?: number, maxDurationMs?: number, onAutoStop?: (() => void) | undefined);
    /**
     * Called when PTY output arrives. Captures a frame if enough time has passed,
     * or schedules one after the debounce interval.
     */
    onOutput(): void;
    private captureFrame;
    /**
     * Finalize recording and return captured frames.
     */
    stop(): Frame[];
    getFrameCount(): number;
    dispose(): void;
}
/**
 * Encode an array of frames as an animated GIF.
 */
export declare function encodeGif(frames: Frame[]): Buffer;
/**
 * Drop every other frame, doubling delays to preserve timing.
 */
export declare function halveFrames(frames: Frame[]): Frame[];
export {};