• 视频


    B站视频

    原文:https://github.com/Henryhaohao/Bilibili_video_download

    import requests,time,hashlib,urllib.request,re
    from xml.dom.minidom import parseString
    from moviepy.editor import *
    import os, sys, json
    
    #用户输入av号或者视频链接地址
    print('*'*30 + 'B站视频下载小助手' + '*'*30)
    start = input('请输入您要下载的B站av号或者视频链接地址:')
    if start.isdigit() == True: #如果输入的是av号
        start_url = 'https://www.bilibili.com/video/av' + start
    else:
        start_url = start
    
    #视频质量
    # <accept_format><![CDATA[flv,flv720,flv480,flv360]]></accept_format>
    # <accept_description><![CDATA[高清 1080P,高清 720P,清晰 480P,流畅 360P]]></accept_description>
    # <accept_quality><![CDATA[80,64,32,15]]></accept_quality>
    quality = input('请输入您要下载视频的清晰度(1080p:80;720p:64;480p:32;360p:15)(填写80或64或32或15):')
    
    #获取视频的cid,title
    headers = {
        'User-Agent':'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36'
    }
    html = requests.get(start_url,headers=headers).text
    print(html)
    cid = re.search(r'cid=(d+)&',html).group(1)
    title = re.search(r'<h1 title="(.*?)" class="video-title"',html).group(1)
    print('[下载视频的cid]:' +cid)
    print('[下载视频的标题]:' + title)
    # 清洗一下标题名称(不能有 / : * ? " < > |)
    title = re.sub(r'[/\:*?"<>|]', '', title)  # 替换为空的
    
    #访问API地址
    entropy = 'rbMCKn@KuamXWlPMoJGsKcbiJKUfkPF_8dABscJntvqhRSETg'
    appkey, sec = ''.join([chr(ord(i) + 2) for i in entropy[::-1]]).split(':')
    params = 'appkey=%s&cid=%s&otype=json&qn=%s&quality=%s&type=' % (appkey, cid, quality, quality)
    chksum = hashlib.md5(bytes(params + sec, 'utf8')).hexdigest()
    url_api = 'https://interface.bilibili.com/v2/playurl?%s&sign=%s' % (params, chksum)
    headers = {
        'Referer':start_url,  #注意加上referer
        'User-Agent':'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36'
    }
    # print(url_api)
    html = requests.get(url_api,headers=headers).json()
    # print(json.dumps(html))
    video_list = [html['durl'][0]['url']]
    # print(video_list)
    
    #下载视频
    '''
     urllib.urlretrieve 的回调函数:
    def callbackfunc(blocknum, blocksize, totalsize):
        @blocknum:  已经下载的数据块
        @blocksize: 数据块的大小
        @totalsize: 远程文件的大小
    '''
    
    
    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
    
        # 设置下载进度条
        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('
    ')
    
    
    # 字节bytes转化KMG
    def format_size(bytes):
        try:
            bytes = float(bytes)
            kb = bytes / 1024
        except:
            print("传入的字节格式不对")
            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)
    
    print('[正在下载,请稍等...]:' + title)
    currentVideoPath = os.path.join(sys.path[0],'bilibili_video',title)  #当前目录作为下载目录
    num = 1
    for i in video_list:
        opener = urllib.request.build_opener()
        # 请求头
        opener.addheaders = [
            # ('Host', 'upos-hz-mirrorks3.acgvideo.com'),  #注意修改host,不用也行
            ('User-Agent', 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36'),
            ('Accept', '*/*'),
            ('Accept-Language', 'en-US,en;q=0.5'),
            ('Accept-Encoding', 'gzip, deflate, br'),
            ('Range', 'bytes=0-'),  # Range 的值要为 bytes=0- 才能下载完整视频
            ('Referer', start_url),  #注意修改referer,必须要加的!
            ('Origin', 'https://www.bilibili.com'),
            ('Connection', 'keep-alive'),
        ]
        urllib.request.install_opener(opener)
        #创建文件夹存放下载的视频
        if not os.path.exists(currentVideoPath):
            os.makedirs(currentVideoPath)
        #开始下载
        start_time = time.time()
        urllib.request.urlretrieve(url=i,filename=os.path.join(currentVideoPath,r'{}-{}.flv'.format(title,num)), reporthook=Schedule_cmd)  #写成mp4也行  title + '-' + num + '.flv'
        num +=1
    
    #合并视频
    if len(video_list) >= 2:
        #视频大于一段才要合并
        print('[下载完成,正在合并视频]')
        # 定义一个数组
        L = []
        # 访问 video 文件夹 (假设视频都放在这里面)
        root_dir = currentVideoPath
        # 遍历所有文件
        for file in sorted(os.listdir(root_dir), key=lambda x: int(x[x.rindex("-")+1:x.rindex(".")])):
            # 如果后缀名为 .mp4/.flv
            if os.path.splitext(file)[1] == '.flv':
                 # 拼接成完整路径
                 filePath = os.path.join(root_dir, file)
                 # 载入视频
                 video = VideoFileClip(filePath)
                 # 添加到数组
                 L.append(video)
        # 拼接视频
        final_clip = concatenate_videoclips(L)
        # 生成目标视频文件
        final_clip.to_videofile(os.path.join(root_dir,r'{}.mp4'.format(title)), fps=24, remove_temp=False)
        print('[视频合并完成]')
    
    else:
        #视频只有一段则直接打印下载完成
        print('[下载完成]:' + title)
    #拓展:分P视频:url相同,只是cid不同,通过url?p=1,2..分别找出每个分P的cid,带入请求得到下载地址
    #如果是windows系统,下载完成后打开下载目录
    if(sys.platform.startswith('win')):
        os.startfile(currentVideoPath)
    
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  • 原文地址:https://www.cnblogs.com/fmgao-technology/p/10565200.html
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