我正在尝试从流媒体 mp4 中提取音频,成功了
ffmpeg -i http://www.sample-videos.com/video/mp4/720/big_buck_bunny_720p_1mb.mp4 out2.mp3
但它失败了这facebook mp4 流媒体视频。(辣妹警报)
它引发错误:out2.mp3: command not found
我怀疑 ffmpeg 是否强迫我使用文件扩展名?
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 --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --disable-lzma --enable-vda
libavutil 55. 28.100 / 55. 28.100
libavcodec 57. 48.101 / 57. 48.101
libavformat 57. 41.100 / 57. 41.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 47.100 / 6. 47.100
libavresample 3. 0. 0 / 3. 0. 0
libswscale 4. 1.100 / 4. 1.100
libswresample 2. 1.100 / 2. 1.100
libpostproc 54. 0.100 / 54. 0.100
答案1
我自己解决了,只需在网址周围加上引号