/**
 * GIF Encoder - Encode captured frames to animated GIF
 *
 * Uses gif.js library for encoding.
 *
 * @example
 * ```typescript
 * const frames = await capture.captureAnimation(...);
 * const gif = await encodeGIF(frames, {
 *   width: 800,
 *   height: 600,
 *   fps: 30,
 *   quality: 10,
 * }, (percent) => console.log(`Encoding: ${percent}%`));
 *
 * // Download the GIF
 * downloadBlob(gif, 'animation.gif');
 * ```
 */
import type { CapturedFrame } from './frame-capture';
export interface GIFOptions {
    /** Output width in pixels */
    width: number;
    /** Output height in pixels */
    height: number;
    /** Frames per second */
    fps: number;
    /** Quality (1-30, lower is better quality but slower) */
    quality?: number;
    /** Number of web workers to use (default: 4) */
    workers?: number;
    /** Whether to loop the GIF (default: true) */
    loop?: boolean;
    /** Background color (default: transparent) */
    background?: string;
    /** Transparent color (for transparency support) */
    transparent?: string;
}
/**
 * Encode frames to animated GIF
 *
 * @param frames - Array of captured frames
 * @param options - GIF encoding options
 * @param onProgress - Progress callback (0-100)
 * @returns Blob containing the GIF
 */
export declare function encodeGIF(frames: CapturedFrame[], options: GIFOptions, onProgress?: (percent: number) => void): Promise<Blob>;
/**
 * Helper function to download a blob
 */
export declare function downloadBlob(blob: Blob, filename: string): void;
/**
 * Get estimated file size for GIF
 * Very rough estimate based on frame count and dimensions
 */
export declare function estimateGIFSize(frameCount: number, width: number, height: number, quality?: number): number;
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