mirror of https://github.com/yt-dlp/yt-dlp.git
[letv] Speedup M3U8 decryption
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@ -94,17 +94,16 @@ class LetvIE(InfoExtractor):
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return encrypted_data
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encrypted_data = encrypted_data[5:]
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_loc4_ = bytearray()
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while encrypted_data:
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b = compat_ord(encrypted_data[0])
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_loc4_.extend([b // 16, b & 0x0f])
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encrypted_data = encrypted_data[1:]
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_loc4_ = bytearray(2 * len(encrypted_data))
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for idx, val in enumerate(encrypted_data):
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b = compat_ord(val)
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_loc4_[2 * idx] = b // 16
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_loc4_[2 * idx + 1] = b % 16
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idx = len(_loc4_) - 11
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_loc4_ = _loc4_[idx:] + _loc4_[:idx]
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_loc7_ = bytearray()
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while _loc4_:
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_loc7_.append(_loc4_[0] * 16 + _loc4_[1])
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_loc4_ = _loc4_[2:]
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_loc7_ = bytearray(len(encrypted_data))
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for i in range(len(encrypted_data)):
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_loc7_[i] = _loc4_[2 * i] * 16 + _loc4_[2 * i + 1]
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return bytes(_loc7_)
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