文章目錄

• 1.任務介紹
• 2.代碼實現

1.任務介紹

拿到每一集的m3u8文件后，可以根據文件內的若干鏈接下載到對應的ts片段，然后根據key對應的鏈接獲得視頻解碼的密鑰對所有下載的ts片段進行解碼。最后將所有片段拼接起來得到完整的一集視頻。

2.代碼實現

import requests,re,aiohttp,aiofiles,asyncio,os from Crypto.Cipher import AESdef decode_key(url):key_url = url.replace('index.m3u8','key.key')key_resp = requests.get(key_url)key = key_resp.textaes = AES.new(key=key, IV=b"0000000000000000", mode=AES.MODE_CBC)return aesdef ts_urls(url):resp = requests.get(url)pattern = re.compile('.*?\n(?P<ts_url>https://.*?.ts).*?',re.S)ts_urls = pattern.findall(resp.text)return ts_urlsasync def get_single_ts(session,i,aes):url = ts_urls[i]async with session.get(url) as resp:async with aiofiles.open('./cql_temp/{}.ts'.format(i),mode='wb') as f:await f.write(await resp.content.read())async with aiofiles.open('./cql_temp/{}.ts'.format(i),mode='rb') as f1, \aiofiles.open('./cql/{}.ts'.format(i),mode='wb') as f2:bs = await f1.read()await f2.write(aes.decrypt(bs))print(i,'done!')async def main():tasks = []async with aiohttp.ClientSession() as session:for i in range(len(ts_urls)):task = asyncio.create_task(get_single_ts(session,i,aes))tasks.append(task)await asyncio.wait(tasks)if __name__ == '__main__':url = 'https://pps.sd-play.com/20220314/VltFA5R5/1200kb/hls/index.m3u8' # 這里以第一集為例aes = decode_key(url)ts_urls = ts_urls(url)asyncio.run(main())

將所有ts文件合并到一起：

import os # windows: copy /b 1.ts+2.ts+3.ts xxx.mp4 # code = 'copy /b 0.ts+1.ts+2.ts+3.ts+4.ts+5.ts+6.ts cql.mp4' # os.system(code) files = os.listdir('./') files = [int(i.split('.')[0]) for i in files] files = sorted(files) part1 = [str(i)+'.ts' for i in files[:600]] part2 = [str(i)+'.ts' for i in files[600:]] # 因為ts文件太多(1200+),一次合并不完，所以分兩步進行 code1 = '+'.join(part1) code2 = '+'.join(part2) os.system('copy /b '+code1+' cql1.mp4') os.system('copy /b '+code2+' cql2.mp4') os.system('copy /b '+'cql1.mp4+cql2.mp4 cql.mp4')

總結

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