I am trying to reverse a video using MoviePy. My code is as under: -
from moviepy.editor import VideoFileClip
from moviepy.video.fx.all import time_mirror
clip = VideoFileClip("udit.mp4")
clip = clip.fx(time_mirror)
clip.write_videofile("reversed.mp4")
But, when I run it I get the following error:-
Traceback (most recent call last):
File "/Users/uditvashisht/projects/experiments/script.py", line 6, in <module>
clip = clip.fx(time_mirror)
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 212, in fx
return func(self, *args, **kwargs)
File "<decorator-gen-89>", line 2, in time_mirror
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 54, in requires_duration
return f(clip, *a, **k)
File "<decorator-gen-88>", line 2, in time_mirror
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 29, in apply_to_mask
newclip = f(clip, *a, **k)
File "<decorator-gen-87>", line 2, in time_mirror
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 41, in apply_to_audio
newclip = f(clip, *a, **k)
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/video/fx/time_mirror.py", line 13, in time_mirror
return self.fl_time(lambda t: self.duration - t, keep_duration=True)
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 187, in fl_time
return self.fl(lambda gf, t: gf(t_func(t)), apply_to,
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 136, in fl
newclip = self.set_make_frame(lambda t: fun(self.get_frame, t))
File "<decorator-gen-61>", line 2, in set_make_frame
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 14, in outplace
f(newclip, *a, **k)
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/video/VideoClip.py", line 644, in set_make_frame
self.size = self.get_frame(0).shape[:2][::-1]
File "<decorator-gen-11>", line 2, in get_frame
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 89, in wrapper
return f(*new_a, **new_kw)
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 93, in get_frame
return self.make_frame(t)
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 136, in <lambda>
newclip = self.set_make_frame(lambda t: fun(self.get_frame, t))
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 187, in <lambda>
return self.fl(lambda gf, t: gf(t_func(t)), apply_to,
File "<decorator-gen-11>", line 2, in get_frame
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/decorators.py", line 89, in wrapper
return f(*new_a, **new_kw)
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/Clip.py", line 93, in get_frame
return self.make_frame(t)
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/video/io/VideoFileClip.py", line 113, in <lambda>
self.make_frame = lambda t: self.reader.get_frame(t)
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/video/io/ffmpeg_reader.py", line 184, in get_frame
result = self.read_frame()
File "/opt/homebrew/lib/python3.9/site-packages/moviepy/video/io/ffmpeg_reader.py", line 133, in read_frame
raise IOError(("MoviePy error: failed to read the first frame of "
OSError: MoviePy error: failed to read the first frame of video file udit.mp4. That might mean that the file is corrupted. That may also mean that you are using a deprecated version of FFMPEG. On Ubuntu/Debian for instance the version in the repos is deprecated. Please update to a recent version from the website
I have tried the code on both Mac and Windows PC. The other functionality of MoviePy works fine, but I am not able to reverse the video. Both of my systems have ImageMagick and FFMPEG installed.
