使用 FFMPEG.WASM 浏览器在线视频格式转换

26 min read

官方网址

https://ffmpegwasm.netlify.app/#demo

转换为mp3的例子

<body>
  <video id="player" controls></video>
  <input type="file" id="uploader">
  <script src="ffmpeg.min.js"></script>
  <script>
    const { createFFmpeg, fetchFile } = FFmpeg;
    const ffmpeg = createFFmpeg({ log: true });
    const transcode = async ({ target: { files } }) => {
      const { name } = files[0];
      await ffmpeg.load();
      ffmpeg.FS('writeFile', name, await fetchFile(files[0]));
      await ffmpeg.run('-i', name,  'output.mp4');
      const data = ffmpeg.FS('readFile', 'output.mp4');
      const video = document.getElementById('player');
      video.src = URL.createObjectURL(new Blob([data.buffer], { type: 'video/mp4' }));
    }
    document
      .getElementById('uploader').addEventListener('change', transcode);
  </script>
</body>

支持以下扩展插件

SCR-20220829-jaq.png