BrokenPipeError: [Errno 32] Broken pipe

When i run python3 -m manim example_scenes.py SquareToCircle -pl

this is what i get Animation 0: ShowCreationSquare: 0%| | 0/15 [00:00<?, ?it/s]/home/pacchu/_temp.local/share/Trash/files/manim/media/videos/example_scenes/480p15/partial_movie_files/SquareToCircle/00000_temp.mp4: No such file or directory

Traceback (most recent call last): File “/home/pacchu/.local/share/Trash/files/manim/manimlib/extract_scene.py”, line 153, in main scene = SceneClass(**scene_kwargs) File “/home/pacchu/.local/share/Trash/files/manim/manimlib/scene/scene.py”, line 54, in init self.construct() File “example_scenes.py”, line 81, in construct self.play(ShowCreation(square)) File “/home/pacchu/.local/share/Trash/files/manim/manimlib/scene/scene.py”, line 449, in wrapper func(self, *args, **kwargs) File “/home/pacchu/.local/share/Trash/files/manim/manimlib/scene/scene.py”, line 484, in play self.add_frames(self.get_frame()) File “/home/pacchu/.local/share/Trash/files/manim/manimlib/scene/scene.py”, line 570, in add_frames self.file_writer.write_frame(frame) File “/home/pacchu/.local/share/Trash/files/manim/manimlib/scene/scene_file_writer.py”, line 171, in write_frame self.writing_process.stdin.write(frame.tostring()) BrokenPipeError: [Errno 32] Broken pipe

[wknowleskellett]

Above that, does it say Unknown encoder 'libx264'?

My guess is that when you run ffmpeg -codecs 2> /dev/null | grep -e 264 that none of the lines contain ‘libx264’, but that there is still output. Basically, I got this problem because ffmpeg (used by manim) would fail to generate the video as requested and close, causing your broken pipe.

I see two possible solutions -

1. For individuals with this problem: If my above command produced output for you which included the name of a codec (i.e. ‘h264’, change line 246 in ./manim/manimlib/scene/scene_file_writer.py from '-vcodec', 'libx264' to '-vcodec', 'the_codec_name_you_found'. This solved the problem for me (I used ‘h264’)
2. For the overall repository, maybe we change the installation requirements somehow to make sure you have libx264 installed. This, or if it turns out everyone should have one called h264, the master could be updated to use h264.

[amilapsn]

https://stackoverflow.com/a/58421346/4146678 For conda peple