2014-11-10
提取音频
ffmpeg -i input -vn output.mp3
-vn 不需要视频 no video
压缩
ffmpeg -i input -acodec copy -vcodec copy -s 800x600 output
-s scale 压缩后大小
日期: 2016-02-02 17:30:06, 8 years and 348 days ago
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