请教一个关于post请求的问题，post视频文件到B站为什么转码失败？

Question

想用python写一个上传B站视频的脚本，用cookie登录并从
http://member.bilibili.com/ge...
获取一些必要的参数，然后用
http://vs103.upload.acgvideo....
上传视频，最后把一些视频信息post到
http://member.bilibili.com/v/...
最后能把视频post到指定账号下但总是显示转码失败（正常上传能成功），如图：

代码如下：

import requests
import json
import sys
import os
import re

class User():
    # some code
    
    def cookies_login(self):
        # cookie 登录
        
    def password_login(self):
        # 密码登录
        
    def upload(self, filename):
        # some code 
        try:
            response = self.session.get('http://member.bilibili.com/get_vupload_url', cookies=cookies)
        except:
            print('Cannot get response from server!')
        uploadresponse = json.loads(response.text)
        """
        print(response.text)
        {"url":"http://vs101.upload.acgvideo.com/upload.cgi?uid=43091594&filename=5896bf9e980e815d29a6b3b4d42d40cf&hash=7496003172e8a9a5bbe73beace2521ad",
         "file_name":"5896bf9e980e815d29a6b3b4d42d40cf",
         "server_ip":"2",
         "html5":true}
        """
        try:        # if error happens...
            uploadresponse["error_code"]
        except KeyError:
            pass
        except:
            print('ERROR: '+ uploadresponse['error_msg'] + ', ' + str(uploadresponse["error_code"]))
            
        # http://member.bilibili.com/video_submit.html?tpl=upload
        server_ip = str(uploadresponse['server_ip'])
        remote_file_name = str(uploadresponse['file_name'])
        upload_url = str(uploadresponse['url'])
        
        # read file
        with open(file_path, 'rb') as f:
            files = {'file': f}
            headers_post = {
                'Accept-Language': 'zh-CN,zh;q=0.8',
                'Access-Control-Request-Headers': 'content-range',
                'Access-Control-Request-Method': 'POST',
                'Accept': 'application/json, text/javascript, */*; q=0.01',
                'Accept-Encoding': 'gzip, deflate',
                'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36',
                'content-type': 'multipart/form-data; boundary=----WebKitFormBoundaryBVqq6OeVT3hluZUO', 
                'Connection': 'keep-alive',
                }
            self.session.options(upload_url, headers={'Accept': '*/*', 'Accept-Encoding': 'gzip, deflate, sdch','Access-Control-Request-Method': 'POST'}) 
            self.session.post(upload_url, files=files, headers = headers_post, stream=True)
            print("upload success!")

        from_data = {
            'copyright': '1',
            'cover': '',
            'body': '[vupload]' + remote_file_name + ';' + filename + ';' + server_ip + ';[/vupload]',
            'title': filename[:-4],
            'typeid': '17',
            'tags': 'youtube',
            'keywords_change': '1',
            'description': 'Top_10_Real_Time_Strategy_Games title',
            'mission_id': '0',
        }
        resp = self.session.post('http://member.bilibili.com/v/archive/submit', headers={
            'Accept':'application/json, text/javascript, */*; q=0.01',
            'Content-Type':'application/x-www-form-urlencoded; charset=UTF-8',
            'Origin':'http://member.bilibili.com',
            'Referer':'http://member.bilibili.com/v/video/submit.html',
            'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.116 Safari/537.36',
            'X-Requested-With':'XMLHttpRequest',}, data=from_data)
        print(resp.text)
        print("hope success!")
        
if __name__ == "__main__":
    up = User('***','***')
    up.start()
    up.upload("***")

Answer 1

先传个小的视频，看能不能成功~