FFmpeg 和 Jupyter 笔记本

Question

我在尝试运行 this 在 Jupyter Notebook[=23= 中创建和显示动画的简单示例时遇到错误 RuntimeError: Requested MovieWriter (ffmpeg) not available ].

--------------------------------------------------------------------------- RuntimeError Traceback (most recent call last) <ipython-input-1-799d6a3690af> in <module> 8 9 # Define the meta data for the movie ---> 10 FFMpegWriter = manimation.writers['ffmpeg'] 11 metadata = dict(title='Movie Test', artist='Matplotlib', 12 comment='a red circle following a blue sine wave') /usr/local/lib/python3.8/dist-packages/matplotlib/animation.py in __getitem__(self, name) 164 if self.is_available(name): 165 return self._registered[name] --> 166 raise RuntimeError(f"Requested MovieWriter ({name}) not available") 167 168 RuntimeError: Requested MovieWriter (ffmpeg) not available

运行 !pip install ffmpeg 没有帮助，因为 ffmpeg 已经安装，显然：

Requirement already satisfied: ffmpeg in /home/username/.local/lib/python3.8/site-packages

我怎样才能使这个工作？

Answer 1

我设法解决了这个问题，但我花了很长时间才找到正确的解决方案，所以我会分享它以防它对某人有帮助。基本上，您需要下载 FFmpeg 的最新静态构建并将其添加到 PATH，以便 python 可以找到它。您可以通过运行 this 脚本轻松完成此操作：

# Download a static FFmpeg build and add it to PATH.
exist = !which ffmpeg
if not exist:
  !curl https://johnvansickle.com/ffmpeg/releases/ffmpeg-release-amd64-static.tar.xz -o ffmpeg.tar.xz \
     && tar -xf ffmpeg.tar.xz && rm ffmpeg.tar.xz
  ffmdir = !find . -iname ffmpeg-*-static
  path = %env PATH
  path = path + ':' + ffmdir[0]
  %env PATH $path
print('')
!which ffmpeg
print('Done!')

希望对您有所帮助！

FFmpeg 和 Jupyter 笔记本

FFmpeg and Jupyter Notebooks

python

ffmpeg

jupyter-notebook

jupyterhub