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M3u8Download.py
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M3u8Download.py
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# _*_ coding: utf-8 _*_
# _*_ author: anwenzen _*_
import os
import re
import queue
import requests
from concurrent.futures import ThreadPoolExecutor
class ThreadPoolExecutorWithQueueSizeLimit(ThreadPoolExecutor):
"""
实现多线程有界队列
队列数为线程数的2倍
"""
def __init__(self, max_workers=None, *args, **kwargs):
super().__init__(max_workers, *args, **kwargs)
self._work_queue = queue.Queue(max_workers * 2)
def make_sum():
ts_num = 0
while True:
yield ts_num
ts_num += 1
class M3u8Download:
"""
:param url: 完整的m3u8文件链接 如"https://www.bilibili.com/example/index.m3u8"
:param name: 保存m3u8的文件名 如"index"
:param max_workers: 多线程最大线程数
:param num_retries: 重试次数
"""
def __init__(self, url, name, max_workers=64, num_retries=5):
self.url = url
self.name = name
self.max_workers = max_workers
self.num_retries = num_retries
self.front_url = None
self.ts_url_list = []
self.success_sum = 0
self.ts_sum = 0
self.headers = {'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) \
AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36'}
requests.packages.urllib3.disable_warnings()
self.get_m3u8_info(self.url, self.num_retries)
with ThreadPoolExecutorWithQueueSizeLimit(self.max_workers) as pool:
for ts_url, auto_id in zip(self.ts_url_list, range(0, len(self.ts_url_list))):
pool.submit(self.download_ts, ts_url, auto_id, self.num_retries)
if self.success_sum == self.ts_sum:
self.output_mp4()
def get_m3u8_info(self, m3u8_url, num_retries):
"""
获取m3u8信息
"""
try:
res = requests.get(m3u8_url, timeout=(5, 60), verify=False, headers=self.headers)
self.front_url = res.url.split(res.request.path_url)[0]
if "EXT-X-STREAM-INF" in res.text: # 判定为顶级M3U8文件
for line in res.text.split('\n'):
if "#" in line:
continue
elif re.search(r'^http', line) is not None:
self.url = line
elif re.search(r'^/', line) is not None:
self.url = self.front_url + line
else:
self.url = self.url.rsplit("/", 1)[0] + '/' + line
self.get_m3u8_info(self.url, self.num_retries)
else:
m3u8_text_str = res.text
self.get_ts_url(m3u8_text_str)
except Exception as e:
print(e)
if num_retries > 0:
self.get_m3u8_info(m3u8_url, num_retries - 1)
def get_ts_url(self, m3u8_text_str):
"""
获取每一个ts文件的链接
"""
if not os.path.exists(f"./{self.name}"):
os.mkdir(f"./{self.name}")
new_m3u8_str = ''
ts = make_sum()
for line in m3u8_text_str.split('\n'):
if "#" in line:
if "EXT-X-KEY" in line:
key = self.download_key(line)
if key:
new_m3u8_str += f'{key}\n'
continue
new_m3u8_str += f'{line}\n'
if "EXT-X-ENDLIST" in line:
break
elif re.search(r'^http', line) is not None:
new_m3u8_str += f"./{self.name}/{next(ts)}\n"
self.ts_url_list.append(line)
elif re.search(r'^/', line) is not None:
new_m3u8_str += f"./{self.name}/{next(ts)}\n"
self.ts_url_list.append(self.front_url + line)
else:
new_m3u8_str += f"./{self.name}/{next(ts)}\n"
self.ts_url_list.append(self.url.rsplit("/", 1)[0] + '/' + line)
self.ts_sum = next(ts)
with open(f"./{self.name}.m3u8", "w") as f:
f.write(new_m3u8_str)
def download_ts(self, ts_url, save_ts_name, num_retries):
"""
下载 .ts 文件
"""
ts_url = ts_url.split('\n')[0]
try:
if not os.path.exists(f"./{self.name}/{save_ts_name}"):
res = requests.get(ts_url, stream=True, timeout=(5, 60), verify=False, headers=self.headers)
if res.status_code == 200:
with open(f"./{self.name}/{save_ts_name}", "wb") as ts:
for chunk in res.iter_content(chunk_size=1024):
if chunk:
ts.write(chunk)
self.success_sum += 1
print(f"\rDownloading {self.name}：{self.success_sum}/{self.ts_sum}\t", end='')
else:
self.download_ts(ts_url, save_ts_name, num_retries - 1)
res.close()
else:
self.success_sum += 1
except Exception:
if os.path.exists(f"./{self.name}/{save_ts_name}"):
os.remove(f"./{self.name}/{save_ts_name}")
if num_retries > 0:
self.download_ts(ts_url, save_ts_name, num_retries - 1)
def download_key(self, key_line, num_retries):
"""
下载key文件
"""
mid_part = re.search(r"URI=[\'|\"].*?[\'|\"]", key_line).group()
may_key_url = mid_part[5:-1]
if re.search(r'^http', may_key_url) is not None:
true_key_url = may_key_url
elif re.search(r'^/', may_key_url) is not None:
true_key_url = self.front_url + may_key_url
else:
true_key_url = self.url.rsplit("/", 1)[0] + '/' + may_key_url
try:
res = requests.get(true_key_url, timeout=(5, 60), verify=False, headers=self.headers)
with open(f"./{self.name}/key", 'wb') as f:
f.write(res.content)
res.close()
return f'{key_line.split(mid_part)[0]}URI="./{self.name}/key"{key_line.split(mid_part)[-1]}'
except Exception as e:
print(e)
if os.path.exists(f"./{self.name}/key"):
os.remove(f"./{self.name}/key")
print("加密视频,无法加载key,揭秘失败")
if num_retries > 0:
self.download_key(key_line, num_retries - 1)
def output_mp4(self):
"""
合并.ts文件，输出mp4格式视频，需要ffmpeg
"""
cmd = f"ffmpeg -allowed_extensions ALL -i {self.name}.m3u8 -acodec copy -vcodec copy -f mp4 {self.name}.mp4"
os.system(cmd)
os.system(f'rm -rf ./{self.name} ./{self.name}.m3u8')
print(f"Download successfully --> {self.name}")
if __name__ == "__main__":
url_list = input("输入url，若同时输入多个url时要用空格分开：").split()
name_list = input("输入name，若同时输入多个name要用空格分开：").split()
# 如果M3U8_URL的数量 ≠ SAVE_NAME的数量
# 下载一部电视剧时，只需要输入一个name就可以了
start_num = 1
for i in range(len(url_list)):
M3u8Download(url_list[i],
name_list[i] if len(url_list) == len(name_list) else f"{name_list[0]}{start_num:02}",
max_workers=64,
num_retries=10
)
start_num += 1