ffmpeg从流mp4中提取音频
我试图从流mp4中提取音频,它成功了 ffmpeg -i http://www.sample-videos.com/video/mp4/720/big_buck_bunny_720p_1mb.mp4 out2.mp3 但它在这个 facebook mp4流媒体视频上失败了。(辣妹警报) 它抛出错误: out2.mp3: command not found 我怀疑ffmpeg强制我有文件扩展名? ffmpeg -i https://scontent.xx.fbcdn.net/v/t42.9040-29/10000000_1730984783818335_416671574_n.mp4?efg=eyJ2ZW5jb2RlX3RhZyI6InNkIn0=&oh=e720dd84a1bb46a272bf748a93b597b9&oe=57CB4994 3.mp3 控制台输出: [1] 4940 [2] 4941 -bash: 3.mp3: command not found [2]+ Done oh=e720dd84a1bb46a272bf748a93b597b9 ffmpeg version 3.1.3 Copyright (c) 2000-2016 the FFmpeg developers built with Apple LLVM version 7.3.0 (clang-703.0.31) configuration: --prefix=/usr/local/Cellar/ffmpeg/3.1.3 --enable-shared …