import { AudioSegment } from '../interfaces';
import { Config } from '../config/config';
/**
 * Get the duration of a video file in seconds
 * @param videoFilePath - Path to the video file
 * @returns Duration in seconds
 */
export declare function getVideoDuration(videoFilePath: string): number;
/**
 * Capture a frame from a video at a specific time position
 * @param videoFilePath - Path to the video file
 * @param timePosition - Time position in seconds
 * @param outputPath - Output path for the captured frame
 * @param lowQuality - If true, save screenshot in 360p resolution
 */
export declare function captureVideoFrame(videoFilePath: string, timePosition: number, outputPath: string, lowQuality?: boolean): void;
/**
 * Get the duration of an audio file in seconds
 * @param audioFilePath - Path to the audio file
 * @returns Duration in seconds
 */
export declare function getAudioDuration(audioFilePath: string): number;
/**
 * Combine audio segments into a single audio track using lossless intermediates
 * @param segments - Array of audio segment information
 * @param outputPath - Output path for the combined audio
 * @param videoDuration - Duration of the video in seconds
 * @param settings - Configuration settings
 */
export declare function combineAudioSegments(segments: AudioSegment[], outputPath: string, videoDuration: number, settings: Config): string | {
    commandFile: string;
};
/**
 * Clean up temporary files
 * @param tempDir - Directory containing temporary files
 */
export declare function cleanupTempFiles(tempDir: string): void;