(files[0]));
        const now = Date.now();
        console.time(`[${now}] ${files[0].name} execution time`);
        message.innerHTML = 'Start to transcode';
        const { file } = await runFFmpeg(IN_FILE_NAME, data, args, OUT_FILE_NAME)
        const video = document.getElementById('output-video');
        video.src = URL.createObjectURL(new Blob([file.buffer], { type: 'video/mp4' }));
        console.timeEnd(`[${now}] ${files[0].name} execution time`);
      };
      document.getElementById('uploader