通过访问tiktok的直播间网页，从网页的script标签内部提取出关于该直播间的相关信息的JSON串，最终从JSON里提取出直播视频流的hls地址和直播间的其他信息。

import sys

import requests
import json
import time
import subprocess
from urllib.parse import urlunparse
from bs4 import BeautifulSoup
from urllib.parse import urlparse


def get_tiktok_live_data_from_pc(user_agent, pc_live_url):
    headers = {
        'User-Agent': user_agent
    }

    response = requests.get(pc_live_url, headers=headers)
    html_str = response.text

    soup = BeautifulSoup(html_str, 'html.parser')
    script = soup.find('script', id='SIGI_STATE', type='application/json')

    json_data = {}
    target_str = script.string.strip()
    if target_str is not None and "live