ios – 在UIWebView中从AVPlayer获取视频URL_app

概述我试图通过这种方法检测从UIWebView播放的当前视频的URL： func webView(_ webView: UIWebView, shouldStartLoadWith request: URLRequest, navigationType: UIWebViewNavigationType) -> Bool { NotificationCenter.default 我试图通过这种方法检测从UIWebVIEw播放的当前视频的URL：

func webVIEw(_ webVIEw: UIWebVIEw,shouldStartLoaDWith request: URLRequest,navigationType: UIWebVIEwNavigationType) -> Bool    {        NotificationCenter.default.addobserver(self,selector: #selector(playerItemBecameCurrent(notification:)),name: NSNotification.name("AVPlayerItemBecameCurrentNotification"),object: nil)        //urlTextFIEld.text = webVIEw.request?.url?.absoluteString        return true    }  func playerItemBecameCurrent(notification:Notification)  {        let playerItem: AVPlayerItem? = notification.object as? AVPlayerItem        if playerItem == nil {            return        }        // Break down the AVPlayerItem to get to the path        let asset: AVURLAsset? = (playerItem?.asset as? AVURLAsset)        let url: URL? = asset?.url        let path: String? = url?.absoluteString        print(path!)    }

此代码有效,但视频网址不包含任何视频文件扩展名：
例如,这里是YouTube和Vimeo视频ulR：

https://r5---sn-ab5l6nzr.GooglevIDeo.com/vIDeoplayback?mime=vIDeo%2Fmp4&requiressl=yes&clen=27257208&mn=sn-ab5l6nzr&mm=31&mv=m&mt=1499534990&key=yt6&ms=au&source=youtube&ip=107.182.226.163&sparams=clen%2Cdur%2Cei%2Cgir%2CID%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Clmt%2Cmime%2Cmm%2Cmn%2CMS%2Cmv%2Cpl%2Cratebypass%2Crequiressl%2Csource%2Cexpire&initcwndbps=3565000&ID=o-ACG22m-TtwyC8tSG_AHUJk3qOPvhUm1X_-qRjy07pjIx&ei=-hZhWZXcJ_aV8gS2tbCQDg&lmt=1497638262979584&ratebypass=yes&gir=yes&pl=25&expire=1499556698&dur=316.093&signature=94C8ED3E4AF64A7AC9F1B7E226454823B236CA55.C18F5F5D9D314B73EDD01dfc4EA3CEA1621AC6C7&ipbits=0&itag=18&cpn=Wb3rpnfJRcFx5P-x&c=MWEB&cver=1.20170706&ptk=TiTV2010%2Buser&oID=1nI2Jk44kRu4HLE6kGDUrA&ptchn=E2VhHmwp3Y_wZvgz_LJvfg&pltype=content

和Vimeo：

https://36skyfiregce-vimeo.akamaized.net/exp=1499539063~acl=%2F222646835%2F%2A~hmac=dc3caeb64501f537e2795ee8e121aed75a7eed9ba4e1b921fe92c757fe06b314/222646835/vIDeo/778109097,778109103,778109102,778109101/master.m3u8?f=dash

解决方法首先,我想告诉你,你的编码工作正常.

镜像服务器

这是因为在上传,下载和流媒体处理过程中谷歌正在使用域名为GooglevIDeo.com的镜像服务器.

您在流式传输状态下访问链接视频.您将只获得该镜像链接.
Youtube视频位于此镜像服务器中.

与Vimeo使用镜像服务器akamaized.net相同

请参阅SO POST以获得澄清

从镜像URL解码视频链接

所以在这种情况下,我们需要拥有的是youtube中视频的唯一ID,并且可以通过附加网址https://www.youtube.com/watch?v=ID_here来访问

对于解码此镜像URL中的唯一ID是不可能的,如SO Answer所示

他们添加了这个镜像服务器概念,是为了获得一些安全性.

根据youtube T& C ..第5B节 – http://www.youtube.com/static?template=terms