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hls: dont decrypt the already unencrypted files.

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fixes: #1301
This commit is contained in:
Johan Andersson 2020-12-31 15:18:56 +01:00
parent 02012221c9
commit c3ff0527fc
1 changed files with 8 additions and 4 deletions
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12
lib/svtplay_dl/fetcher/hls.py
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@ -229,10 +229,14 @@ class HLS(VideoRetriever):
cipher = Cipher(algorithms.AES(key), modes.CBC(iv), backend=backend)
decryptor = cipher.decryptor()
if decryptor:
data = decryptor.update(data)
else:
raise ValueError("No decryptor found for encrypted hls steam.")
# In some cases the playlist say its encrypted but the files is not.
# This happen on svtplay 5.1ch stream where it started with ID3..
# Adding the other ones is header for mpeg-ts files. third byte is 10 or 11..
if data[:3] != b"ID3" and data[:3] != b"\x47\x40\x11" and data[:3] != b"\x47\x40\x10":
if decryptor:
data = decryptor.update(data)
else:
raise ValueError("No decryptor found for encrypted hls steam.")
file_d.write(data)