python 下载bilibili视频

说明:

1.清晰度的选择要登录,暂时还没做,目前下载的视频清晰度都是默认的480P

2.进度条仿linux的,参考了一些博客修改了下,侵删

3.其他评论,弹幕之类的相关爬虫代码放在了https://github.com/teleJa/bilibili

4.判断sys.argv那个地方是因为一些爬虫调用了该文件,如果感觉不方面,直接传递视频番号进去就可以了

下载过程如图

直接上代码:

  1 import requests
  2 import re
  3 import os
  4 import json
  5 import sys
  6 import math
  7 from lxml import etree
  8 
  9 
 10 class BLDSplider:
 11     regex_cid = re.compile("\"cid\":(.{8})")
 12 
 13     def __init__(self, aid):
 14         self.aid = aid
 15 
 16         self.origin_url = "https://www.bilibili.com/video/av{}?from=search&seid=9346373599622336536".format(aid)
 17         self.headers = {
 18             "User-Agent": "Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/68.0.3440.106 Safari/537.36",
 19         }
 20 
 21         self.url = "https://api.bilibili.com/x/player/playurl?avid={}&cid={}&qn=0&type=&otype=json"
 22 
 23     def check_dir(self, author_name):
 24         # 检查目录
 25         self.parent_path = "e:/bilibili/" + author_name + "/" + str(self.aid) + "/"
 26         if not os.path.exists(self.parent_path):
 27             os.makedirs(self.parent_path)
 28 
 29         self.video_name = self.parent_path + str(self.aid) + ".mp4"
 30 
 31     def parse_url(self, item):
 32         cid = item["cid"]
 33         print("aid:%s   cid:%s" % (str(self.aid), cid))
 34         title = item["title"]
 35         print("title:%s" % title)
 36 
 37         self.headers["Referer"] = self.origin_url
 38         # 视频
 39         response = requests.get(self.url.format(self.aid, cid), headers=self.headers)
 40         if response.status_code == 200:
 41             result = json.loads(response.content.decode())
 42             durl = result["data"]["durl"][0]
 43             video_url = durl["url"]
 44             print("video_url:%s" % video_url)
 45             # 视频大小
 46             size = durl["size"]
 47             print("size:%s,约%2.2fMB" % (size, size / (1024 * 1024)))
 48             video_response = requests.get(video_url, headers=self.headers, stream=True)
 49             if video_response.status_code == 200:
 50                 with open(self.video_name, "wb") as file:
 51                     buffer = 1024
 52                     count = 0
 53                     while True:
 54                         if count + buffer <= size:
 55                             file.write(video_response.raw.read(buffer))
 56                             count += buffer
 57                         else:
 58                             file.write(video_response.raw.read(size % buffer))
 59                             count += size % buffer
 60                         file_size = os.path.getsize(self.video_name)
 61                         # print("\r下载进度 %.2f %%" % (count * 100 / size), end="")
 62 
 63                         width = 50
 64                         percent = (count / size)
 65                         use_num = int(percent * width)
 66                         space_num = int(width - use_num)
 67                         percent = percent * 100
 68                         print('\r进度:[%s%s]    %d%%' % (use_num * '#', space_num * ' ', percent), file=sys.stdout,
 69                               flush=True, end="")
 70                         if size == count:
 71                             break
 72                 print("\r\n")
 73 
 74     # 获取视频相关参数
 75     def get_video_info(self):
 76         response = requests.get(self.origin_url, headers=self.headers)
 77         item = dict()
 78         if response.status_code == 200:
 79             # author
 80             html_element = etree.HTML(response.content.decode())
 81             author = dict()
 82             author_name = html_element.xpath(
 83                 "/html/body/div[@id='app']/div[@class='v-wrap']/div[@class='r-con']/div[@id='v_upinfo']//a[@report-id='name']/text()")[
 84                 0]
 85             # 通常是微博,微信公众号等联系方式
 86             author_others = html_element.xpath(
 87                 "/html/body/div[@id='app']/div[@class='v-wrap']/div[@class='r-con']/div[@id='v_upinfo']//div[@class='desc']/@title")[
 88                 0]
 89             author["name"] = author_name
 90             author["others"] = author_others
 91             item["author"] = author
 92 
 93             # cid
 94             cid = BLDSplider.regex_cid.findall(response.content.decode())[0]
 95             item["cid"] = cid
 96             info_url = "https://api.bilibili.com/x/web-interface/view?aid={}&cid={}".format(self.aid, cid)
 97             info_response = requests.get(info_url, headers=self.headers)
 98             if info_response.status_code == 200:
 99                 data = json.loads(info_response.content.decode())["data"]
100                 # 视频简介
101                 desc = data["desc"]
102                 item["desc"] = desc
103 
104                 # title
105                 title = data["title"]
106                 item["title"] = title
107 
108                 stat = data["stat"]
109                 # 播放量
110                 view = stat["view"]
111                 item["view"] = view
112 
113                 # 弹幕
114                 danmaku = stat["danmaku"]
115                 item["danmaku"] = danmaku
116 
117                 # 评论
118                 reply = stat["reply"]
119                 item["reply"] = reply
120 
121                 # 硬币
122                 coin = stat["coin"]
123                 item["coin"] = coin
124 
125                 # 点赞
126                 like = stat["like"]
127                 item["like"] = like
128 
129                 # 收藏
130                 favorite = stat["favorite"]
131                 item["favorite"] = favorite
132 
133                 # 分享
134                 share = stat["share"]
135                 item["share"] = share
136             self.check_dir(item["author"]["name"])
137             # 视频参数
138             with open(self.parent_path + "video_info.txt", "w") as file:
139                 file.write(json.dumps(item, ensure_ascii=False, indent=2))
140             return item
141 
142     def run(self):
143         item = self.get_video_info()
144         self.parse_url(item)
145 
146 
147 def main():
148     # 55036734
149     aid = 55036734
150     if len(sys.argv) >= 2:
151         if sys.argv[1]:
152             aid = sys.argv[1]
153     splider = BLDSplider(aid)
154     splider.run()
155 
156 
157 if __name__ == '__main__':
158     main()

 

 

转载于:https://www.cnblogs.com/tele-share/p/11208351.html