Day07 solved
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Day 07/3DULK2N7DcpXFg8qGo9Z9qEQqvaEDpUCBB1v.mp4
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BIN
Day 07/3DULK2N7DcpXFg8qGo9Z9qEQqvaEDpUCBB1v.mp4
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35
Day 07/decode.py
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35
Day 07/decode.py
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#!/usr/bin/python
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#$ ffmpeg -i 3DULK2N7DcpXFg8qGo9Z9qEQqvaEDpUCBB1v.mp4 -vf fps=10 frames/frame%04d.jpg -hide_banner
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from PIL import Image
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import os.path
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def brightness(pix):
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return ((pix[0] + pix[1] + pix[2]) / 3) / 255
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bytes = []
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i = 1
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while True:
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path = "frames/frame%04d.jpg" % i
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if not os.path.isfile(path):
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break
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img = Image.open(path);
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pix = img.load()
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pos = [(343,177), (418,180), (551,166), (626,185),
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(717,169), (788,164), (878,162), (959,165)]
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byte = ""
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for p in pos:
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if brightness(pix[p]) > 0.6:
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byte += "1"
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else:
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byte += "0"
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bytes.append(byte)
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i = i + 1
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print("".join(chr(int(x, 2)) for x in bytes))
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