Play b64 encoded stream in mpv

streamenhancer.py

import json                                                                      
import base64                                                                    
import argparse                                                                  
from subprocess import run, PIPE                                                 
                                                                                  
                                                                                  
parser = argparse.ArgumentParser()                                               
parser.add_argument("b64", help="b64 string for stream", type=str)               
args = parser.parse_args()                                                       
parsed = args.b64.split('streamenhancer://', 1)[1]                               
decoded = base64.b64decode(parsed)                                               
subscriber = json.loads(decoded)                                                 
url = subscriber['request']['url']                                               
result= ""                                                                       
for x in subscriber['request']['headers']:                                       
  result += " --http-header \"%s=%s\"" %(x.pop('name'), x.pop('value'))        
  p = run(["streamlink", "-p mpv", url, "best"], stdout=PIPE, input=result, encoding='ascii')
  print(p.returncode)                                                              
  print(p.stdout)