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利用python 下載bilibili視頻

時間:2020-11-14來源:www.outletmksalestore.com作者:電腦系統城

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# !/usr/bin/python
# -*- coding:utf-8 -*-
# time: 2019/07/21--20:12
__author__ = 'Henry'
 
 
'''
項目: B站動漫番劇(bangumi)下載
版本2: 無加密API版,但是需要加入登錄后cookie中的SESSDATA字段,才可下載720p及以上視頻
API:
1.獲取cid的api為 https://api.bilibili.com/x/web-interface/view?aid=47476691 aid后面為av號
2.下載鏈接api為 https://api.bilibili.com/x/player/playurl?avid=44743619&cid=78328965&qn=32 cid為上面獲取到的 avid為輸入的av號 qn為視頻質量
注意:
但是此接口headers需要加上登錄后'Cookie': 'SESSDATA=3c5d20cf%2C1556704080%2C7dcd8c41' (30天的有效期)(因為現在只有登錄后才能看到720P以上視頻了)
不然下載之后都是最低清晰度,哪怕選擇了80也是只有480p的分辨率!!
'''
 
import requests, time, urllib.request, re
from moviepy.editor import *
import os, sys, threading, json
 
import imageio
 
# 訪問API地址
def get_play_list(aid, cid, quality):
  url_api = 'https://api.bilibili.com/x/player/playurl?cid={}&avid={}&qn={}'.format(cid, aid, quality)
  headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36',
    'Cookie': 'SESSDATA=13bd2abb%2C1619949439%2C2815d*b1', # 登錄B站后復制一下cookie中的SESSDATA字段,有效期1個月
    'Host': 'api.bilibili.com'
  }
  html = requests.get(url_api, headers=headers).json()
  # print(html)
  # 當下載會員視頻時,如果cookie中傳入的不是大會員的SESSDATA時就會返回: {'code': -404, 'message': '啥都木有', 'ttl': 1, 'data': None}
  if html['code'] != 0:
    print('注意!當前集數為B站大會員專享,若想下載,Cookie中請傳入大會員的SESSDATA')
    return 'NoVIP'
  video_list = []
  for i in html['data']['durl']:
    video_list.append(i['url'])
  print(video_list)
  return video_list
 
 
# 下載視頻
'''
 urllib.urlretrieve 的回調函數:
def callbackfunc(blocknum, blocksize, totalsize):
  @blocknum: 已經下載的數據塊
  @blocksize: 數據塊的大小
  @totalsize: 遠程文件的大小
'''
 
 
def Schedule_cmd(blocknum, blocksize, totalsize):
  speed = (blocknum * blocksize) / (time.time() - start_time)
  # speed_str = " Speed: %.2f" % speed
  speed_str = " Speed: %s" % format_size(speed)
  recv_size = blocknum * blocksize
 
  # 設置下載進度條
  f = sys.stdout
  pervent = recv_size / totalsize
  percent_str = "%.2f%%" % (pervent * 100)
  n = round(pervent * 50)
  s = ('#' * n).ljust(50, '-')
  f.write(percent_str.ljust(8, ' ') + '[' + s + ']' + speed_str)
  f.flush()
  # time.sleep(0.1)
  f.write('\r')
 
 
def Schedule(blocknum, blocksize, totalsize):
  speed = (blocknum * blocksize) / (time.time() - start_time)
  # speed_str = " Speed: %.2f" % speed
  speed_str = " Speed: %s" % format_size(speed)
  recv_size = blocknum * blocksize
 
  # 設置下載進度條
  f = sys.stdout
  pervent = recv_size / totalsize
  percent_str = "%.2f%%" % (pervent * 100)
  n = round(pervent * 50)
  s = ('#' * n).ljust(50, '-')
  print(percent_str.ljust(6, ' ') + '-' + speed_str)
  f.flush()
  time.sleep(2)
  # print('\r')
 
 
# 字節bytes轉化K\M\G
def format_size(bytes):
  try:
    bytes = float(bytes)
    kb = bytes / 1024
  except:
    print("傳入的字節格式不對")
    return "Error"
  if kb >= 1024:
    M = kb / 1024
    if M >= 1024:
      G = M / 1024
      return "%.3fG" % (G)
    else:
      return "%.3fM" % (M)
  else:
    return "%.3fK" % (kb)
 
 
# 下載視頻
def down_video(video_list, title, start_url, page):
  num = 1
  print('[正在下載第{}話視頻,請稍等...]:'.format(page) + title)
  currentVideoPath = os.path.join(sys.path[0], 'bilibili_video', title) # 當前目錄作為下載目錄
  for i in video_list:
    opener = urllib.request.build_opener()
    # 請求頭
    opener.addheaders = [
      # ('Host', 'upos-hz-mirrorks3.acgvideo.com'), #注意修改host,不用也行
      ('User-Agent', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:56.0) Gecko/20100101 Firefox/56.0'),
      ('Accept', '*/*'),
      ('Accept-Language', 'en-US,en;q=0.5'),
      ('Accept-Encoding', 'gzip, deflate, br'),
      ('Range', 'bytes=0-'), # Range 的值要為 bytes=0- 才能下載完整視頻
      ('Referer', start_url), # 注意修改referer,必須要加的!
      ('Origin', 'https://www.bilibili.com'),
      ('Connection', 'keep-alive'),
 
    ]
    urllib.request.install_opener(opener)
    # 創建文件夾存放下載的視頻
    if not os.path.exists(currentVideoPath):
      os.makedirs(currentVideoPath)
    # 開始下載
    if len(video_list) > 1:
      urllib.request.urlretrieve(url=i, filename=os.path.join(currentVideoPath, r'{}-{}.flv'.format(title, num)),
                    reporthook=Schedule_cmd) # 寫成mp4也行 title + '-' + num + '.flv'
    else:
      urllib.request.urlretrieve(url=i, filename=os.path.join(currentVideoPath, r'{}.flv'.format(title)),
                    reporthook=Schedule_cmd) # 寫成mp4也行 title + '-' + num + '.flv'
    num += 1
 
 
# 合并視頻(20190802新版)
def combine_video(title_list):
  video_path = os.path.join(sys.path[0], 'bilibili_video') # 下載目錄
  for title in title_list:
    current_video_path = os.path.join(video_path ,title)
    if len(os.listdir(current_video_path)) >= 2:
      # 視頻大于一段才要合并
      print('[下載完成,正在合并視頻...]:' + title)
      # 定義一個數組
      L = []
      # 遍歷所有文件
      for file in sorted(os.listdir(current_video_path), key=lambda x: int(x[x.rindex("-") + 1:x.rindex(".")])):
        # 如果后綴名為 .mp4/.flv
        if os.path.splitext(file)[1] == '.flv':
          # 拼接成完整路徑
          filePath = os.path.join(current_video_path, file)
          # 載入視頻
          video = VideoFileClip(filePath)
          # 添加到數組
          L.append(video)
      # 拼接視頻
      final_clip = concatenate_videoclips(L)
      # 生成目標視頻文件
      final_clip.to_videofile(os.path.join(current_video_path, r'{}.mp4'.format(title)), fps=24, remove_temp=False)
      print('[視頻合并完成]' + title)
    else:
      # 視頻只有一段則直接打印下載完成
      print('[視頻合并完成]:' + title)
 
 
if __name__ == '__main__':
  start_time = time.time()
  # 用戶輸入番劇完整鏈接地址
  # 1. https://www.bilibili.com/bangumi/play/ep267692 (用帶ep鏈接)
  # 2. https://www.bilibili.com/bangumi/play/ss26878 (不要用這個ss鏈接,epinfo的aid會變成'-1')
  print('*' * 30 + 'B站番劇視頻下載小助手' + '*' * 30)
  print('[提示]: 1.如果您想下載720P60,1080p+,1080p60質量的視頻,請將35行代碼中的SESSDATA改成你登錄大會員后得到的SESSDATA,普通用戶的SESSDATA最多只能下載1080p的視頻')
  print('    2.若發現下載的視頻質量在720p以下,請將35行代碼中的SESSDATA改成你登錄后得到的SESSDATA(有效期一個月),而失效的SESSDATA就只能下載480p的視頻')
 
  start = input('請輸入您要下載的B站番劇的完整鏈接地址(例如:https://www.bilibili.com/bangumi/play/ep267692):')
  ep_url = start
  headers = {
    'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36'
  }
  html = requests.get(ep_url,headers=headers).text
  ep_info = re.search(r'INITIAL_STATE__=(.*?"]});', html).group(1)
  # print(ep_info)
  ep_info = json.loads(ep_info)
  print(ep_info)
  # print('您將要下載的番劇名為:' + ep_info['mediaInfo']['title']) # 字段格式太不統一了
  y = input('請輸入1或2 - 1.只下載當前一集 2.下載此番劇的全集:')
  # 1.如果只下載當前ep
  id_list = []
  if y == '1':
    try:
      id_list.append([ep_info['videoData']['aid'], ep_info['videoData']['cid'],
              ep_info['videoData']['title'] + ' ' + ep_info['videoData']['title']])
    except:
      id_list.append([ep_info['videoData']['aid'], ep_info['videoData']['cid'],
              '第' + str(ep_info['videoData']['index']) + '話 ' + ep_info['videoData']['index_title']])
  # 2.下載此番劇全部ep
  else:
    for i in ep_info['epList']:
      # if i['badge'] == '': # 當badge字段為'會員'時,接口返回404
      try:
        id_list.append([i['aid'], i['cid'],
                i['titleFormat'] + ' ' + i['title']])
      except:
        id_list.append([i['aid'], i['cid'],'第' + str(i['index']) + '話 ' + i['index_title']])
 
  # qn參數就是視頻清晰度
  # 可選值:
  # 116: 高清1080P60 (需要帶入大會員的cookie中的SESSDATA才行,普通用戶的SESSDATA最多只能下載1080p的視頻,不帶入SESSDATA就只能下載480p的)
  # 112: 高清1080P+ (hdflv2) (需要大會員)
  # 80: 高清1080P (flv)
  # 74: 高清720P60 (需要大會員)
  # 64: 高清720P (flv720)
  # 32: 清晰480P (flv480)
  # 16: 流暢360P (flv360)
  print('請輸入您要下載視頻的清晰度(1080p60:116;1080p+:112;1080p:80;720p60:74;720p:64;480p:32;360p:16; **注意:1080p+,1080p60,720p60都需要帶入大會員的cookie中的SESSDATA才行,普通用戶的SESSDATA最多只能下載1080p的視頻):')
  quality = input('請輸入116或112或80或74或64或32或16:')
  threadpool = []
  title_list = []
  page = 1
  print(id_list)
  for item in id_list:
    aid = str(item[0])
    cid = str(item[1])
    title = item[2]
    title = re.sub(r'[\/\\:*?"<>|]', '', title) # 替換為空的
    print('[下載番劇標題]:' + title)
    title_list.append(title)
    start_url = ep_url
    video_list = get_play_list(aid, cid, quality)
    start_time = time.time()
    # down_video(video_list, title, start_url, page)
    # 定義線程
    if video_list != 'NoVIP':
      th = threading.Thread(target=down_video, args=(video_list, title, start_url, page))
      # 將線程加入線程池
      threadpool.append(th)
    page += 1
 
  # 開始線程
  for th in threadpool:
    th.start()
  # 等待所有線程運行完畢
  for th in threadpool:
    th.join()
   
  # 最后合并視頻
  print(title_list)
  combine_video(title_list)
   
  end_time = time.time() # 結束時間
  print('下載總耗時%.2f秒,約%.2f分鐘' % (end_time - start_time, int(end_time - start_time) / 60))
  # 如果是windows系統,下載完成后打開下載目錄
  currentVideoPath = os.path.join(sys.path[0], 'bilibili_video') # 當前目錄作為下載目錄
  if (sys.platform.startswith('win')):
    os.startfile(currentVideoPath)

以上就是利用python 下載bilibili視頻的詳細內容

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