python 下载bilibili视频

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,d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:

 import requests

 import re

 import os

 import json

 import sys

 import math

 from lxml import etree

 class BLDSplider:

     regex_cid = re.compile("\"cid\":(.{8})")

     def __init__(self, aid):

         self.aid = aid

         self.origin_url = "https://www.bilibili.com/video/av{}?from=search&seid=9346373599622336536".format(aid)

         self.headers = {

             "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",

         }

         self.url = "https://api.bilibili.com/x/player/playurl?avid={}&cid={}&qn=0&type=&otype=json"

     def check_dir(self, author_name):

         # 检查目录

         self.parent_path = "e:/bilibili/" + author_name + "/" + str(self.aid) + "/"

         if not os.path.exists(self.parent_path):

             os.makedirs(self.parent_path)

         self.video_name = self.parent_path + str(self.aid) + ".mp4"

     def parse_url(self, item):

         cid = item["cid"]

         print("aid:%s   cid:%s" % (str(self.aid), cid))

         title = item["title"]

         print("title:%s" % title)

         self.headers["Referer"] = self.origin_url

         # 视频

         response = requests.get(self.url.format(self.aid, cid), headers=self.headers)

         if response.status_code == 200:

             result = json.loads(response.content.decode())

             durl = result["data"]["durl"][0]

             video_url = durl["url"]

             print("video_url:%s" % video_url)

             # 视频大小

             size = durl["size"]

             print("size:%s,约%2.2fMB" % (size, size / (1024 * 1024)))

             video_response = requests.get(video_url, headers=self.headers, stream=True)

             if video_response.status_code == 200:

                 with open(self.video_name, "wb") as file:

                     buffer = 1024

                     count = 0

                     while True:

                         if count + buffer <= size:

                             file.write(video_response.raw.read(buffer))

                             count += buffer

                         else:

                             file.write(video_response.raw.read(size % buffer))

                             count += size % buffer

                         file_size = os.path.getsize(self.video_name)

                         # print("\r下载进度 %.2f %%" % (count * 100 / size), end="")

                         width = 50

                         percent = (count / size)

                         use_num = int(percent * width)

                         space_num = int(width - use_num)

                         percent = percent * 100

                         print('\r进度:[%s%s]    %d%%' % (use_num * '#', space_num * ' ', percent), file=sys.stdout,

                               flush=True, end="")

                         if size == count:

                             break

                 print("\r\n")

     # 获取视频相关参数

     def get_video_info(self):

         response = requests.get(self.origin_url, headers=self.headers)

         item = dict()

         if response.status_code == 200:

             # author

             html_element = etree.HTML(response.content.decode())

             author = dict()

             author_name = html_element.xpath(

                 "/html/body/div[@id='app']/div[@class='v-wrap']/div[@class='r-con']/div[@id='v_upinfo']//a[@report-id='name']/text()")[

                 0]

             # 通常是微博,微信公众号等联系方式

             author_others = html_element.xpath(

                 "/html/body/div[@id='app']/div[@class='v-wrap']/div[@class='r-con']/div[@id='v_upinfo']//div[@class='desc']/@title")[

                 0]

             author["name"] = author_name

             author["others"] = author_others

             item["author"] = author

             # cid

             cid = BLDSplider.regex_cid.findall(response.content.decode())[0]

             item["cid"] = cid

             info_url = "https://api.bilibili.com/x/web-interface/view?aid={}&cid={}".format(self.aid, cid)

             info_response = requests.get(info_url, headers=self.headers)

             if info_response.status_code == 200:

                 data = json.loads(info_response.content.decode())["data"]

                 # 视频简介

                 desc = data["desc"]

                 item["desc"] = desc

                 # title

                 title = data["title"]

                 item["title"] = title

                 stat = data["stat"]

                 # 播放量

                 view = stat["view"]

                 item["view"] = view

                 # d幕

                 danmaku = stat["danmaku"]

                 item["danmaku"] = danmaku

                 # 评论

                 reply = stat["reply"]

                 item["reply"] = reply

                 # 硬币

                 coin = stat["coin"]

                 item["coin"] = coin

                 # 点赞

                 like = stat["like"]

                 item["like"] = like

                 # 收藏

                 favorite = stat["favorite"]

                 item["favorite"] = favorite

                 # 分享

                 share = stat["share"]

                 item["share"] = share

             self.check_dir(item["author"]["name"])

             # 视频参数

             with open(self.parent_path + "video_info.txt", "w") as file:

                 file.write(json.dumps(item, ensure_ascii=False, indent=2))

             return item

     def run(self):

         item = self.get_video_info()

         self.parse_url(item)

 def main():

     #

     aid = 55036734

     if len(sys.argv) >= 2:

         if sys.argv[1]:

             aid = sys.argv[1]

     splider = BLDSplider(aid)

     splider.run()

 if __name__ == '__main__':

     main()