python 实现视频流下载保存MP4的方法

如下所示：

# -*- coding:utf-8 -*-
import sys
import os
from glob import glob
import requests
 
 
reload(sys)
sys.setdefaultencoding("utf-8")
file_path=os.getcwd()
#获取需要转换的路径
def get_user_path(argv_dir):
if os.path.isdir(argv_dir):
return argv_dir
elif os.path.isabs(argv_dir):
return argv_dir
else:
return false
#对转换的ts文件进行排序	
def get_sorted_ts(user_path):
 
ts_list = glob(os.path.join(user_path,'*.ts'))
 
boxer = []
for ts in ts_list:
 
if os.path.exists(ts):
# print(os.path.splitext(os.path.basename(ts)))
file,_ = os.path.splitext(os.path.basename(ts))
print file
boxer.append(file)
# boxer.append(int(file))
boxer.sort()
print(boxer)
return boxer
#文件合并	
def convert_m3u8(file_path,boxer,o_file_name):
print u"开始拼接视频"
 
new_path=file_path+"/"+u"视频"
try:
os.chdir(new_path)
except exception, e:
os.mkdir(new_path)
tmp = []
for ts in boxer:
print ts
tmp.append(str(ts)+'.ts')
cmd_str = '+'.join(tmp)
exec_str = "copy /b "+cmd_str+' '+o_file_name
print("copy /b "+cmd_str+' '+o_file_name)
os.chdir(user_path)
os.system(exec_str)
print "go home path"
import shutil
shutil.move(o_file_name,new_path+"/"+o_file_name)
os.chdir(file_path)
 
 
 
 
 
reload(sys)
sys.setdefaultencoding('utf-8')
 
# 功能：爬取m3u8格式的视频
 
# 检查存储路径是否正常
def check_path(_path):
# 判断存储路径是否存在
if os.path.isdir(_path) or os.path.isabs(_path):
# 判断存储路径是否为空
if not os.listdir(_path):
return _path
 
else:
 
print u'>>>[-] 目标文件不为空，将清空目标文件，是否更换路径？'
flag = raw_input('>>>[*] yes:1 no:2 \n>>>[+] [2]')
 
try:
if flag == '1':
_path = raw_input(unicode('>>>[+] 请输入目标文件路径。\n>>>[+] ').encode('gbk'))
check_path(_path)
else:
# 清空存储路径
os.system('rd /s /q ' + _path)
os.system('mkdir ' + _path)
return _path
except exception as e:
print e
exit(0)
 
else:
os.makedirs(_path)
return _path
 
# 获取ts视频的爬取位置
def get_url(_url, _path):
 
all_url = _url.split('/')
url_pre = '/'.join(all_url[:-1]) + '/'
url_next = all_url[-1]
 
os.chdir(_path)
# 获取m3u8文件
m3u8_txt = requests.get(_url, headers = {'connection':'close'})
with open(url_next, 'wb') as m3u8_content:
m3u8_content.write(m3u8_txt.content)
# 提取ts视频的url
movies_url = []
_urls = open(url_next, 'rb')
for line in _urls.readlines():
if '.ts' in line:
movies_url.append(url_pre + line[:-1])
else:
continue
 
_urls.close()
return movies_url
 
# 爬取ts视频
def download_movie(num,movie_url, _path):
os.chdir(_path)
print u'>>>[+] 第{}个视频 downloading...'.format(num)
print '-' * 60
error_get = []
 
for _url in movie_url:
 
# ts视频的名称
movie_name = _url.split('/')[-1][-6:]
movie_name1 = _url.split('_')[-1][-6:]
# print movie_name2
if len(str(movie_name1))<=4:
movie_name1="00"+str(movie_name1)
elif len(str(movie_name1))<=5:
movie_name1="0"+str(movie_name1)
else :
movie_name1=str(movie_name1)
 
try:
# 'connection':'close' 防止请求端口占用
# timeout=30 防止请求时间超长连接
movie = requests.get(_url, headers = {'connection':'close'}, timeout=60)
with open(movie_name1, 'wb') as movie_content:
movie_content.writelines(movie)
print u'>>>[+] 视频片段 ' + movie_name1 + u' 下载完成'
# 捕获异常，记录失败请求
except:
error_get.append(_url)
continue
# 如果没有不成功的请求就结束
if error_get:
print u'共有%d个请求失败' % len(file_list)
print '-' * 60
download_movie(error_get, _path)
else:
print '>>>[+] download successfully!!!'
 
url=["http://video.renrenjiang.cn/record/alilive/7684990805-1512186274.m3u8"]
 
if __name__ == '__main__':
try:
 
# _url = raw_input(unicode('>>>[+] 请输入指定的[.m3u8]目标url。\n>>>[+] ').encode('gbk'))
# _path = raw_input(unicode('>>>[+] 请输入存储目标文件路径。\n>>>[+] ').encode('gbk'))
for i in range(len(url)):
_url=url[i]
_path=os.getcwd()+"/"+"ts"+str(i+5)
try:
os.chdir(_path)
except exception, e:
os.mkdir(_path)
storage_path = check_path(_path)
movie_url = get_url(_url, storage_path)
download_movie(i+1,movie_url, storage_path)#下载视频
user_path =_path
o_file_name=str(i+5)+".mp4"
boxer = get_sorted_ts(user_path)
convert_m3u8(file_path,boxer,o_file_name)#拼接视频
 
except exception as e:
print e

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