[查看文件信息](%E5%AE%9E%E4%BE%8B/%E6%9F%A5%E7%9C%8B%E6%96%87%E4%BB%B6%E4%BF%A1%E6%81%AF.md) [转换编码格式](%E5%AE%9E%E4%BE%8B/%E8%BD%AC%E6%8D%A2%E7%BC%96%E7%A0%81%E6%A0%BC%E5%BC%8F.md) [调整码率](%E5%AE%9E%E4%BE%8B/%E8%B0%83%E6%95%B4%E7%A0%81%E7%8E%87.md) [改变分辨率](%E6%94%B9%E5%8F%98%E5%88%86%E8%BE%A8%E7%8E%87.md) [提取音频](%E5%AE%9E%E4%BE%8B/%E6%8F%90%E5%8F%96%E9%9F%B3%E9%A2%91.md) [截图](%E6%88%AA%E5%9B%BE.md) [裁剪](%E5%AE%9E%E4%BE%8B/%E8%A3%81%E5%89%AA.md) [为音频添加封面](%E5%AE%9E%E4%BE%8B/%E4%B8%BA%E9%9F%B3%E9%A2%91%E6%B7%BB%E5%8A%A0%E5%B0%81%E9%9D%A2.md)