Due to limitations of Google Colab resources, I am trying to use MoviePy on other platforms. The latest platform I tried was a free account on DeepNote. However, when executing the code:
from moviepy.editor import *
text_clip = TextClip("Hello world!", fontsize=70, color='white')
bg_clip = ColorClip(size=(720, 480), color='black')
final_clip = CompositeVideoClip([bg_clip, text_clip]).set_duration(10)
final_clip.write_videofile("texto.mp4", fps=30)
The following errors happen:
Moviepy - Building video texto.mp4.
Moviepy - Writing video texto.mp4
TypeError: must be real number, not NoneType
---------------------------------------------------------------------------
TypeError Traceback (most recent call last)
Cell In [1], line 13
10 final_clip = CompositeVideoClip([bg_clip, text_clip]).set_duration(10)
12 # Salvando o resultado
---> 13 final_clip.write_videofile("texto.mp4", fps=30)
File /shared-libs/python3.10/py-core/lib/python3.10/site-packages/decorator.py:232, in decorate.<locals>.fun(*args, **kw)
230 if not kwsyntax:
231 args, kw = fix(args, kw, sig)
--> 232 return caller(func, *(extras + args), **kw)
File ~/venv/lib/python3.10/site-packages/moviepy/decorators.py:54, in requires_duration(f, clip, *a, **k)
52 raise ValueError("Attribute 'duration' not set")
53 else:
---> 54 return f(clip, *a, **k)
File /shared-libs/python3.10/py-core/lib/python3.10/site-packages/decorator.py:232, in decorate.<locals>.fun(*args, **kw)
230 if not kwsyntax:
231 args, kw = fix(args, kw, sig)
--> 232 return caller(func, *(extras + args), **kw)
File ~/venv/lib/python3.10/site-packages/moviepy/decorators.py:135, in use_clip_fps_by_default(f, clip, *a, **k)
130 new_a = [fun(arg) if (name=='fps') else arg
131 for (arg, name) in zip(a, names)]
132 new_kw = {k: fun(v) if k=='fps' else v
133 for (k,v) in k.items()}
--> 135 return f(clip, *new_a, **new_kw)
File /shared-libs/python3.10/py-core/lib/python3.10/site-packages/decorator.py:232, in decorate.<locals>.fun(*args, **kw)
230 if not kwsyntax:
231 args, kw = fix(args, kw, sig)
--> 232 return caller(func, *(extras + args), **kw)
File ~/venv/lib/python3.10/site-packages/moviepy/decorators.py:22, in convert_masks_to_RGB(f, clip, *a, **k)
20 if clip.ismask:
21 clip = clip.to_RGB()
---> 22 return f(clip, *a, **k)
File ~/venv/lib/python3.10/site-packages/moviepy/video/VideoClip.py:300, in VideoClip.write_videofile(self, filename, fps, codec, bitrate, audio, audio_fps, preset, audio_nbytes, audio_codec, audio_bitrate, audio_bufsize, temp_audiofile, rewrite_audio, remove_temp, write_logfile, verbose, threads, ffmpeg_params, logger)
292 if make_audio:
293 self.audio.write_audiofile(audiofile, audio_fps,
294 audio_nbytes, audio_bufsize,
295 audio_codec, bitrate=audio_bitrate,
296 write_logfile=write_logfile,
297 verbose=verbose,
298 logger=logger)
--> 300 ffmpeg_write_video(self, filename, fps, codec,
301 bitrate=bitrate,
302 preset=preset,
303 write_logfile=write_logfile,
304 audiofile=audiofile,
305 verbose=verbose, threads=threads,
306 ffmpeg_params=ffmpeg_params,
307 logger=logger)
309 if remove_temp and make_audio:
310 if os.path.exists(audiofile):
File ~/venv/lib/python3.10/site-packages/moviepy/video/io/ffmpeg_writer.py:213, in ffmpeg_write_video(clip, filename, fps, codec, bitrate, preset, withmask, write_logfile, audiofile, verbose, threads, ffmpeg_params, logger)
211 logfile = None
212 logger(message='Moviepy - Writing video %s\n' % filename)
--> 213 with FFMPEG_VideoWriter(filename, clip.size, fps, codec = codec,
214 preset=preset, bitrate=bitrate, logfile=logfile,
215 audiofile=audiofile, threads=threads,
216 ffmpeg_params=ffmpeg_params) as writer:
218 nframes = int(clip.duration*fps)
220 for t,frame in clip.iter_frames(logger=logger, with_times=True,
221 fps=fps, dtype="uint8"):
File ~/venv/lib/python3.10/site-packages/moviepy/video/io/ffmpeg_writer.py:88, in FFMPEG_VideoWriter.__init__(self, filename, size, fps, codec, audiofile, preset, bitrate, withmask, logfile, threads, ffmpeg_params)
77 self.ext = self.filename.split(".")[-1]
79 # order is important
80 cmd = [
81 get_setting("FFMPEG_BINARY"),
82 '-y',
83 '-loglevel', 'error' if logfile == sp.PIPE else 'info',
84 '-f', 'rawvideo',
85 '-vcodec', 'rawvideo',
86 '-s', '%dx%d' % (size[0], size[1]),
87 '-pix_fmt', 'rgba' if withmask else 'rgb24',
---> 88 '-r', '%.02f' % fps,
89 '-an', '-i', '-'
90 ]
91 if audiofile is not None:
92 cmd.extend([
93 '-i', audiofile,
94 '-acodec', 'copy'
95 ])
TypeError: must be real number, not NoneType
To avoid other errors that I discovered earlier I do:
!sudo apt-get update
!sudo apt install -y imagemagick
!sudo sed -i 's/none/read,write/g'> /etc/ImageMagick-6/policy.xml
!export 'IMAGEMAGICK_BINARY'='/usr/bin/convert'
!pip install moviepy
I just want to use MoviePy to generate a video with text appearing on the screen using Deepnote, but at some point in the code, the variable fps becomes None, resulting in an error in the operation ‘%.02f’ % fps.
