python实现m3u8格式转换为mp4视频格式

# -*- coding:utf-8 -*- 
import sys 
import os 
from glob import glob 
#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')) 
  #print(ts_list) 
  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)) 
      boxer.append(int(file)) 
  boxer.sort() 
  #print(boxer) 
  return boxer 
#文件合并   
def convert_m3u8(boxer,o_file_name): 
  #cmd_arg = str(ts0)+"+"+str(ts1)+" "+o_file_name 
  tmp = [] 
  for ts in boxer: 
    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.system(exec_str) 
     
     
if __name__=='__main__': 
  #print(sys.argv[1:]) 
  argv_len = len(sys.argv) 
  if argv_len == 3: 
    o_dir,o_file_name =sys.argv[1:] 
    #print(o_dir+":"+o_file_name) 
    user_path = get_user_path(o_dir) 
    #print(user_path) 
    if not user_path: 
      print("您输入的路径不正确，:-("); 
    else: 
      if os.path.exists(os.path.join(user_path,o_file_name)): 
        print('目标文件已存在，程序停止运行。') 
        exit(0) 
      os.chdir(user_path) 
      #convert_m3u8('2.ts','4.ts',o_file_name) 
      boxer = get_sorted_ts(user_path) 
      convert_m3u8(boxer,o_file_name) 
      #print(os.getcwd()) 
  else: 
    print("参数个数非法");