21 lines
691 B
Python
Executable File
21 lines
691 B
Python
Executable File
#!/usr/bin/env python3
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# this script creates a second version of the animation that fades out over time. these files are
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# animation-XXXX.png. i think plymouth could use this to smooth the transition to the login screen,
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# although it doesn't seem to be used for me.
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import os
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import re
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import sys
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digits = re.compile(r'\d+')
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# like blåhaj/throbber-0001.png
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filename = sys.argv[1]
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num = int(digits.search(filename).group())
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# fades from 1.0 to 1/60 over the animation
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opacity = (61 - num) / 60
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output = filename.replace('throbber', 'animation')
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os.system(f'ffmpeg -loglevel quiet -i {filename} -vf colorchannelmixer=aa={opacity} -y {output}')
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os.system(f'optipng -o7 -silent {output}')
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