YouTube数据API（v3）：获取视频源网址

对于应用程序，我希望获取为特定YouTube视频提供的视频源文件（mp4,3gp，flv，不同的分辨率...）。YouTube数据API（v3）：获取视频源网址

这些网址通常是这样的：

http://r3---sn-4g57knle.googlevideo.com/videoplayback?ipbits=0&fexp=900245%2C908586%2C924638%2C927622%2C930666%2C930672%2C931983%2C932404%2C934030%2C935664%2C945250%2C946022%2C947209%2C947225%2C952302%2C955103&ip=87.177.189.18&key=yt5&initcwndbps=681250&upn=X4vk4QMCQz0&source=youtube&mm=31&nh=IgpwcjAxLmZyYTA1KgkxMjcuMC4wLjE&id=o-AL7s5KXNMvYaMHLpLcWIlhPmCHFPFUsGva5dqMRyHvwA&ms=au&mt=1413583948&sparams=id%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Cmm%2Cms%2Cmv%2Cnh%2Csource%2Cupn%2Cexpire&mv=m&expire=1413605670&sver=3&signature=582FD84BF598E08232608193010E2090E528F9F2.F79985AC148D30F08B7FF52643D2366347DED9F3&itag=36

是否sombody知道这可能与给定的API。以下电话将只给我这些信息：

https://www.googleapis.com/youtube/v3/videos?id=7lCDEYXw3mM&key=AIzaSyAR8hEPiEkKI8pWSG9oDXMVfe_C6Uh80n8&part=status,snippet,player 
--------------------------------------------------------------------------------- 
{ 
"kind": "youtube#videoListResponse", 
"etag": "\"PSjn-HSKiX6orvNhGZvglLI2lvk/Zneg4lPSgXR0L-TSvyF64urNwpA\"", 
"pageInfo": { 
    "totalResults": 1, 
    "resultsPerPage": 1 
}, 
"items": [ 
    { 
    "kind": "youtube#video", 
    "etag": "\"PSjn-HSKiX6orvNhGZvglLI2lvk/MVQzBWrYyN1JHf2r72_T20nEM4E\"", 
    "id": "7lCDEYXw3mM", 
    "snippet": { 
    "publishedAt": "2012-06-20T23:12:38.000Z", 
    "channelId": "UC_x5XG1OV2P6uZZ5FSM9Ttw", 
    "title": "Google I/O 101: Q&A On Using Google APIs", 
    "description": "Antonio Fuentes speaks to us and takes questions on working with Google APIs and OAuth 2.0.", 
    "thumbnails": { 
    "default": { 
     "url": "https://i.ytimg.com/vi/7lCDEYXw3mM/default.jpg", 
     "width": 120, 
     "height": 90 
    }, 
    "medium": { 
     "url": "https://i.ytimg.com/vi/7lCDEYXw3mM/mqdefault.jpg", 
     "width": 320, 
     "height": 180 
    }, 
    "high": { 
     "url": "https://i.ytimg.com/vi/7lCDEYXw3mM/hqdefault.jpg", 
     "width": 480, 
     "height": 360 
    } 
    }, 
    "channelTitle": "Google Developers", 
    "categoryId": "28", 
    "liveBroadcastContent": "none" 
    }, 
    "status": { 
    "uploadStatus": "processed", 
    "privacyStatus": "public", 
    "license": "youtube", 
    "embeddable": true, 
    "publicStatsViewable": true 
    }, 
    "player": { 
    "embedHtml": "\u003ciframe type='text/html' src='http://www.youtube.com/embed/7lCDEYXw3mM' width='640' height='360' frameborder='0' allowfullscreen='true'/\u003e" 
    } 
    } 
] 
}

来源

2014-10-17 Frank Roth

这绝对是不可能的，并且违反了YouTube的服务条款。有关解决方法，请参阅http://superuser.com/q/773719 – 2014-10-18 17:13:06

@StevenPenny然后，他们为什么要使用它的v2 api的get_video_info来公开它。 – 2016-04-26 09:35:33

是的，这是可能的.. – 2016-12-21 05:57:27

这是解析这些URL并将其打印出来的可能解决方案。也许也有趣的是那里的人是mime型和itag。

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStreamReader; 
import java.net.URL; 
import java.net.URLDecoder; 
import java.util.HashSet; 
import java.util.regex.Matcher; 
import java.util.regex.Pattern; 

public class Main { 


    public static void main(String[] args) throws IOException { 

     // URL 
     URL youtubeUrl = new URL("https://www.youtube.com/watch?v=gbjg1CkX0As"); 

     // Open URL 
     BufferedReader reader = new BufferedReader(new InputStreamReader(youtubeUrl.openStream())); 
     StringBuilder builder = new StringBuilder(); 
     String line; 
     while ((line = reader.readLine()) != null) { 
      builder.append(line); 
     } 
     String content = builder.toString(); 

     // Parse URLs 
     String[] list = content.split("url="); 
     HashSet<String> results = new HashSet<String>(); 
     for (String hits : list) { 
      if (hits.startsWith("https")) { 
       String link = hits.split(",")[0]; 
       results.add(link); 
      } 
     } 

     String url = null; 
     String itag; 
     String type; 

     for (String set : results) { 
      set = set.replace("\\", "\\\\"); 

      for (String sdata : set.split("\\\\")) { 
       if (sdata.startsWith("https")) 
        url = sdata; 
      } 

      if (url != null) { 
       if (url.startsWith("https")) { 
        url = url.split(" ")[0]; 
        url = URLDecoder.decode(url, "UTF-8"); 

        System.out.println("Stream-URL: " + url.toString()); 

        if (url.contains("mime=")) { 
         type = (url.split("mime=")[1]).split("&")[0]; 
         type = URLDecoder.decode(type, "UTF-8"); 
         System.out.println("Mime-Type: " + type); 
        } 

        if (url.contains("itag")) { 
         itag = (url.split("itag=")[1]).split("&")[0]; 
         itag = URLDecoder.decode(itag, "UTF-8"); 
         System.out.println("itag: " + itag); 
        } 

        Pattern p = Pattern.compile("<title>(.*?)</title>"); 
        Matcher m = p.matcher(content); 
        while (m.find() == true) { 
         String htmlTitle = m.group(1); 
         htmlTitle = htmlTitle.substring(0, htmlTitle.length() - 10); 
         htmlTitle = URLDecoder.decode(htmlTitle); 
         System.out.println("Title: " + htmlTitle); 
         break; 
        } 
       } 
      } 
      System.out.println(); 
     } 
    } 
}

这个独立的脚本将打印出以下：

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.521&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&keepalive=yes&signature=DC485AFB3956E6F065BF3A2363187F47A392AFFA.8F137502456DB32C7B99D91EE0E6AE77116499A9&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1408633524115186&upn=GUSCKRIivU0&pl=17&source=youtube&clen=216513824&mv=m&itag=251&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=audio%2Fwebm&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: audio/webm 
itag: 251 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.576&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&keepalive=yes&signature=CDD2A5E66D7CCFA2FDEA03D02E9B21B613A76A08.74B909CEC39528AB3FACCC5F694908F13F733A7B&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1408762859064032&upn=GUSCKRIivU0&pl=17&source=youtube&clen=179669295&mv=m&itag=140&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=audio%2Fmp4&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: audio/mp4 
itag: 140 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://www.youtube.com/watch?v=gbjg1CkX0As&amp;format=xml" 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.441&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&keepalive=yes&signature=DA6900416026AD7E2DBB0D24DBBCD4CF0FC36FD0.D440569A1E63C9BF085EEB395AF1A793C46D6575&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1408762998859604&upn=GUSCKRIivU0&pl=17&source=youtube&clen=153850123&mv=m&itag=160&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=video%2Fmp4&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: video/mp4 
itag: 160 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.529&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&keepalive=yes&signature=068AC8C88659E40BA11BDAC4A08D494602492C07.8E23D8690A89ECE26BD145D2D7A7E5D52F1DCC44&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1408633512497831&upn=GUSCKRIivU0&pl=17&source=youtube&clen=134335071&mv=m&itag=171&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=audio%2Fwebm&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: audio/webm 
itag: 171 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.441&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&keepalive=yes&signature=0B4E9BEAB22A21CBC5DD9152ECCA2E5626A77B2B.37038F6342DE259E3845657C7446A5877E8ADB40&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1408762859400512&upn=GUSCKRIivU0&pl=17&source=youtube&clen=341375567&mv=m&itag=133&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=video%2Fmp4&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: video/mp4 
itag: 133 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.739&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&signature=5B6F6EBBC26356D5EA09305BB9943329E9799594.76406956D7019C08B0442CE5022ABECD26E050B2&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1402746302320112&upn=GUSCKRIivU0&pl=17&source=youtube&clen=315994974&mv=m&itag=36&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=video%2F3gpp&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: video/3gpp 
itag: 36 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.480&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&keepalive=yes&signature=600297F5AE56AD894F576C42435126AF5DC92250.ACF694661F71924F18DB33293CDE904E8D8DF819&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1408636410543086&upn=GUSCKRIivU0&pl=17&source=youtube&clen=221807998&mv=m&itag=242&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=video%2Fwebm&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: video/webm 
itag: 242 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Cratebypass%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.576&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&signature=BF5FD0028DB0E0CCBFA4F793E2DD14C40EF27260.A828539A9E99B3270E87CB52D354F3B9414F1473&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1408763244110396&upn=GUSCKRIivU0&pl=17&source=youtube&clen=587648380&mv=m&ratebypass=yes&itag=18&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=video%2Fmp4&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: video/mp4 
itag: 18 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.521&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&keepalive=yes&signature=2FE1F940A3683F82F334E53FFF01B22A493B4ECF.843617DDE77CE2928EC2394F6539AC369EA3D29C&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1408633517569061&upn=GUSCKRIivU0&pl=17&source=youtube&clen=65323057&mv=m&itag=249&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=audio%2Fwebm&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: audio/webm 
itag: 249 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.521&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&keepalive=yes&signature=8A5BC896960E448A63E47588896B3EACF1F9A66C.5811D670190E5D8868CCE217C46160A4962AE79C&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1408633513830627&upn=GUSCKRIivU0&pl=17&source=youtube&clen=80572787&mv=m&itag=250&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=audio%2Fwebm&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: audio/webm 
itag: 250 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Ckeepalive%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.520&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&keepalive=yes&signature=AF988FC4C3BB7B3DF2D099885625CF11C10071BF.061CFA4288DB323C11131F2014D7EA0B337C1885&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1408634899442262&upn=GUSCKRIivU0&pl=17&source=youtube&clen=92548106&mv=m&itag=278&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=video%2Fwebm&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: video/webm 
itag: 278 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=11191.785&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&signature=32AF551C5DE2593EF7B12ECEF5C5A9D0F2960D69.CBB13585C8B2B1EE42BDFAF99575D63B25ACA7DA&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1402744752653433&upn=GUSCKRIivU0&pl=17&source=youtube&clen=113602023&mv=m&itag=17&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=video%2F3gpp&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B" 
Mime-Type: video/3gpp 
itag: 17 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://r6---sn-4g5e6n7r.googlevideo.com/videoplayback?requiressl=yes&sparams=clen%2Cdur%2Cei%2Cgir%2Cid%2Cinitcwndbps%2Cip%2Cipbits%2Citag%2Clmt%2Cmime%2Cmm%2Cmn%2Cms%2Cmv%2Cnh%2Cpl%2Cratebypass%2Crequiressl%2Csource%2Cupn%2Cexpire&dur=0.000&ei=_slyWInMFIjBWoLKlogN&mn=sn-4g5e6n7r&mm=31&key=yt6&ip=46.5.2.116&signature=72B7D5F55A9D85FB4FD716217463096511BDB78E.3DEDD0D885FB7EF84E16CCA241DEC6902CBF6D58&initcwndbps=1150000&gir=yes&mt=1483917673&ms=au&ipbits=0&lmt=1402760337253038&upn=GUSCKRIivU0&pl=17&source=youtube&clen=997314522&mv=m&ratebypass=yes&itag=43&nh=IgpwcjA1LmZyYTE2KgkxMjcuMC4wLjE&mime=video%2Fwebm&expire=1483939422&id=o-AJNwZexTfaj7RaRcA8HeiWWa2oUKD0Sasrh8WqpZ5I0B 
Mime-Type: video/webm 
itag: 43 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0) 

Stream-URL: https://www.youtube.com/watch?v=gbjg1CkX0As&amp;format=json" 
Title: Karlsruher SC - FC Valencia 02.11.1993 (7:0)

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2017-01-08 23:21:31

YouTube数据API（v3）：获取视频源网址

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