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方法：

解析m3u8，获取其中的ts列表，多线程下载所有ts文件。

全部下完之后，用ffmpeg合并成mp4

代码：

import requests
import os
import threadingtnum = 64class Downloader(threading.Thread):def __init__(self, id, url, ts_list, file_path):threading.Thread.__init__(self)self.id = idself.url = urlself.ts_list = ts_listself.file_path = file_pathdef run(self):for i in range(self.id, len(self.ts_list), tnum):ts_url = self.ts_list[i]r = requests.get(ts_url, stream=True)if r.status_code == 200:with open(self.file_path + f'_{i}.ts', 'wb') as f:for chunk in r.iter_content(chunk_size=1024):if chunk:f.write(chunk)def download_m3u8_video(url, file_path):r = requests.get(url)if r.status_code != 200:print('m3u8视频下载链接无效')return Falsem3u8_list = r.text.split('\n')m3u8_list = [i for i in m3u8_list if i and i[0] != '#']ts_list = []for ts_url in m3u8_list:ts_url = url.rsplit('/', 1)[0] + '/' + ts_urlts_list.append(ts_url)f = open(file_path+'file_list.txt', 'w+')for i in range(len(ts_list)):f.write('file \'' + f'_{i}.ts' + "'\n")f.close()threads = []for i in range(0, tnum):thread = Downloader(i, url, ts_list, file_path.rsplit('.', 1)[0])thread.start()threads.append(thread)for thread in threads:thread.join()return not endflagdef merge_file(path, save_path):ffmpeg_bin_dic = 'C:/ffmpeg-2023-08-07-git-d295b6b693-full_build/bin/'os.system(ffmpeg_bin_dic+'ffmpeg -f concat -safe 0 -i '+path+'file_list.txt'+' -c '+ ' copy ' +save_path)def down(url):name = url[-41:-5]print(name)ts_file_path = 'D:/v/' + name+'/'os.makedirs(ts_file_path)mp4_file_path = 'D:/v2/'+name+'.mp4'global endflagendflag = Falseif download_m3u8_video(url, ts_file_path):print('m3u8视频下载完成')merge_file(ts_file_path, mp4_file_path)else :print('error!!!!')print(url)url_list = ['https://sth.com/videos/202305091/d63b006e-c6fb-4997-8d43-7ebd086e9c75.m3u8','https://sth.com/videos/202305081/2c9fa41b-e25b-4371-908f-d246628d7bed.m3u8',
]for url in url_list:down(url)