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[aria2c] Fix IV for some AES-128 streams

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Authored by: shirt
This commit is contained in:
pukkandan 2021-09-22 00:15:56 +05:30
parent 0d32e124c6
commit 96933fc1b6
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1 changed files with 2 additions and 1 deletions
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3
yt_dlp/downloader/external.py
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@ -11,6 +11,7 @@ from ..aes import aes_cbc_decrypt_bytes
from ..compat import (
compat_setenv,
compat_str,
compat_struct_pack,
)
from ..postprocessor.ffmpeg import FFmpegPostProcessor, EXT_TO_OUT_FORMATS
from ..utils import (
@ -155,7 +156,7 @@ class ExternalFD(FileDownloader):
decrypt_info = fragment.get('decrypt_info')
if decrypt_info:
if decrypt_info['METHOD'] == 'AES-128':
iv = decrypt_info.get('IV')
iv = decrypt_info.get('IV') or compat_struct_pack('>8xq', fragment['media_sequence'])
decrypt_info['KEY'] = decrypt_info.get('KEY') or self.ydl.urlopen(
self._prepare_url(info_dict, info_dict.get('_decryption_key_url') or decrypt_info['URI'])).read()
encrypted_data = src.read()