/**
 * Video Format Handler
 *
 * Handles video file operations using fluent-ffmpeg.
 * Supports: MP4, MOV, AVI, MKV, WebM
 * Operations: metadata extraction, thumbnail generation
 */
export interface VideoMetadata {
    duration: number;
    width: number;
    height: number;
    codec: string;
    bitrate: number;
    fps: number;
    audioCodec?: string;
    size: number;
    format: string;
}
export interface ThumbnailOptions {
    time?: number;
    width?: number;
    height?: number;
    format?: 'png' | 'jpeg';
}
export declare class VideoHandler {
    /**
     * Get video metadata
     */
    getMetadata(filePath: string): Promise<VideoMetadata>;
    /**
     * Extract thumbnail from video at specified time
     */
    extractThumbnail(videoPath: string, outputPath: string, options?: ThumbnailOptions): Promise<void>;
    /**
     * Extract multiple thumbnails at different times
     */
    extractThumbnails(videoPath: string, outputDir: string, times: number[], options?: Omit<ThumbnailOptions, 'time'>): Promise<string[]>;
    /**
     * Get video duration quickly without full metadata
     */
    getDuration(filePath: string): Promise<number>;
    /**
     * Calculate FPS from ffprobe frame rate string (e.g., "30000/1001")
     */
    private calculateFPS;
    /**
     * Check if file is a supported video format
     */
    isSupportedFormat(filePath: string): boolean;
}
export declare const videoHandler: VideoHandler;
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