/// <summary>
        /// Creates an instance of <see cref="YoutubeConverter"/>.
        /// </summary>
        public YoutubeConverter(IYoutubeClient youtubeClient, string ffmpegFilePath)
        {
            _youtubeClient = youtubeClient.GuardNotNull(nameof(youtubeClient));

            ffmpegFilePath.GuardNotNull(nameof(ffmpegFilePath));
            _ffmpeg = new FfmpegCli(ffmpegFilePath);
        }