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FFmpeg/python-命令在从shell运行时有效,但在从python运行时失败_Python_Shell_Ffmpeg - Fatal编程技术网

FFmpeg/python-命令在从shell运行时有效,但在从python运行时失败

FFmpeg/python-命令在从shell运行时有效,但在从python运行时失败,python,shell,ffmpeg,Python,Shell,Ffmpeg,我有一个python脚本,该脚本应使用以下函数运行ffmpeg命令: def transcode(in_path, out_path): cmd = ["ffmpeg", "-y", "-i", in_path, '-vf smartblur=lr=1'] cmd += ["-an", out_path] print("Running:", " ".join(cmd)) subprocess.run(cmd, stdout=cmdout, stderr=cmdou

我有一个python脚本,该脚本应使用以下函数运行ffmpeg命令:

def transcode(in_path, out_path):
    cmd = ["ffmpeg", "-y", "-i", in_path, '-vf smartblur=lr=1']
    cmd += ["-an", out_path]
    print("Running:", " ".join(cmd))
    subprocess.run(cmd, stdout=cmdout, stderr=cmdout)
当我运行python脚本时,它失败,出现以下ffmpeg错误:

Running: ffmpeg -y -i raid/orig/scenes/train/5786088.mp4 -vf smartblur=lr=1 -an raid/4K/scenes/train/5786088.mp4
ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Unrecognized option 'vf smartblur=lr=1'.
Error splitting the argument list: Option not found
您可以在第一行看到它试图执行的命令,当我在命令行中运行它时,它工作正常。当我在shell中运行该命令时,它输出的ffmpeg的版本和参数与上面的错误中所写的相同


我觉得我错过了一些简单而重要的东西,任何人都可以为我指出正确的方向?

您可能需要像这样拆分“-vf smartblur”选项:

cmd = ["ffmpeg", "-y", "-i", in_path, '-vf', 'smartblur=lr=1']

如果我戴着眼镜,我肯定90%的时间我都会在戴眼镜的时候寻找它们。这太明显了,我不知道我是怎么错过的,也不知道我是怎么没试过的。希望它能帮助其他有类似问题的可怜的灵魂。你已经有了一个解决方案,但是2.8分支是古老的。我建议进行更新,以避免很久以前修复的bug,或者]。