cntv.cn视频绝对地址分析

http://dianying.cntv.cn/love/lianaiqianguize/classpage/video/20091221/100120.shtml

这是CCTV电影站一个播放页面地址,打开源码,找到播放器一段,flash player是由JS创建的

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var fo = createPlayer("v_player_cctv",928,552);
fo.addVariable("videoId", "20091221100120");
fo.addVariable("articleId", "VIDE0020091221100120");
fo.addVariable("scheduleId", "C13671000001");
fo.addVariable("filePath", "/love/lianaiqianguize/classpage/video/");
fo.addVariable("sorts", "其他,,,爱情,C13671,CCTV-9");
fo.addVariable("sysSource", "discovery");
fo.addVariable("url", "http://dianying.cntv.cn/love/lianaiqianguize/classpage/video/20091221/100120.shtml");
fo.addVariable("videoCenterId","36b502b4ceeb4a6d950955b4bd9e93f8");//视频生产中心id
fo.addVariable("channelId",channelId);//埋码
fo.addVariable("adCall",adCall);//广告
fo.addVariable("isLogin", "y");
fo.addVariable("userId", "001");
fo.addVariable("hour24DataURL", "");
fo.addVariable("isCycle", "false");
fo.addVariable("wideMode", "normal");
fo.addVariable("defaultRate", "low");
fo.addVariable("isAutoPlay", "true");
writePlayer(fo,"myFlash");

createPlayer() 函数在 film_standard2.js 文件,找到swf播放器地址 http://player.cntv.cn/standard/cntvplayer.swf ,下载下来用 Action Script Viewer 6 打开

发现里面有这么个类 com.cntv.common.model.proxy.GetVideoInfoProxy ,通过用 videoId、articleId、filePath 等关键字搜索,找到这么一段AS代码

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_local2 = (((((this._localtor.configVO.videoInfoURL + this._localtor.paramVO.filePath) + this._localtor.paramVO.videoId.substr(0, 8)) + "/") + this._localtor.paramVO.videoId.substr(8, (this._localtor.paramVO.videoId.length - 1))) + ".txt");

就是说把videoId截前面8位,作为目录,后面是文件名,用 videoId = “20091221100120” 代入,得到这么一个地址

http://dianying.cntv.cn/love/lianaiqianguize/classpage/video/20091221/100120.txt,跟播放页地址一样,后缀名改为txt而已,把地址放到IE打开,发现是一个JSON格式的文本,格式化之后如下

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{
"videoid": "20091221100120",
"duration": "21:56",
"isLive": "false",
"title": "恋爱前规则1",
"imagePath": "http://p1.img.cctvpic.com/image/2009/qgds/2009/12/21/qgds_h264418000nero_aac32_20091221_1261357606439_2.jpg",
"isRtmp": "false",
"ack": "yes",
"relation": "public",
"refHtml": "<embed id=’v_player_cctv’ width=’960′ height=’540′ flashvars=’videoId=20091221100120&isLogin=y&userId=001& articleId=VIDE0020091221100120&scheduleId=C13671000001& filePath=/love/lianaiqianguize/classpage/video/&sorts=其他,,,爱情,C13671000001&url=http://dianying.cntv.cn/love/lianaiqianguize/classpage/video/20091221/100120.shtml&configPath=http://dianshiju.cntv.cn/nettv/Library/film/player/config.xml&widgetsConfig=http://dianshiju.cntv.cn/nettv/Library/film/player/widgetsConfig.xml&languageConfig=http://dianshiju.cntv.cn/nettv/Library/film/player/zh_cn.xml&sysSource=film’ allowscriptaccess=’always’ allowfullscreen=’true’ menu=’false’ quality=’best’ bgcolor=’#000000′ name=’v_player_cctv’ src=’http://dianshiju.cntv.cn/nettv/Library/tongyong/player/OutSidePlayer.swf’ type=’application/x-shockwave-flash’ lk_mediaid=’lk_juiceapp_mediaPopup_1257416656250′ lk_media=’yes’/>",
"refURL": "http://dianying.cntv.cn/love/lianaiqianguize/classpage/video/20091221/100120.shtml",
"chapters": [
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264418000nero_aac32_20091221_1261357606439-1.mp4",
"duration": "296"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264418000nero_aac32_20091221_1261357606439-2.mp4",
"duration": "297"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264418000nero_aac32_20091221_1261357606439-3.mp4",
"duration": "299"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264418000nero_aac32_20091221_1261357606439-4.mp4",
"duration": "299"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264418000nero_aac32_20091221_1261357606439-5.mp4",
"duration": "126"
}
],
"chapters2": [
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264818000nero_aac32_20091221_1261357611665-1.mp4",
"duration": "178"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264818000nero_aac32_20091221_1261357611665-2.mp4",
"duration": "178"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264818000nero_aac32_20091221_1261357611665-3.mp4",
"duration": "178"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264818000nero_aac32_20091221_1261357611665-4.mp4",
"duration": "179"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264818000nero_aac32_20091221_1261357611665-5.mp4",
"duration": "179"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264818000nero_aac32_20091221_1261357611665-6.mp4",
"duration": "176"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264818000nero_aac32_20091221_1261357611665-7.mp4",
"duration": "176"
},
{
"url": "http://sportsipr.v.cctv.com/200911/qgds/2009/12/21/qgds_h264818000nero_aac32_20091221_1261357611665-8.mp4",
"duration": "72"
}
]
}

实际是个播放列表,直接用迅雷就可以下载了

事实上,cntv还有另一种json格式,比如《火星没事》http://dianying.cntv.cn/lcomedy/C15956/classpage/video/20100128/100696.shtml,JSON文本如下

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{
"videoid": "20100128100696",
"duration": "01:32:36",
"isLive": "false",
"title": "火星宝贝之火星没事",
"imagePath": "http://p3.img.cctvpic.com/image/2009/qgds/2010/01/28/qgds_h26441800\r\n\r\n0nero_aac32_20100128_1264647498894_2.jpg",
"isRtmp": "true",
"ack": "yes",
"relation": "public",
"refHtml": "<embed id=’v_player_cctv’ width=’960′ height=’540′ flashvars=’videoId=20100128100696&isLogin=y&userId=001&articleId=VIDE0020100128100696&scheduleId=C15956000001&filePath=/lcomedy/C15956/classpage/video/&sorts=其他,,,喜剧,C15956000001&url=http://dianying.cntv.cn/lcomedy/C15956/classpage/video/20100128/100696.shtml&configPath=http://dianshiju.cntv.cn/nettv/Library/film/player/config.xml&widgetsConfig=http://dianshiju.cntv.cn/nettv/Library/film/player/widgetsConfig.xml&languageConfig=http://dianshiju.cntv.cn/nettv/Library/film/player/zh_cn.xml&sysSource=film’ allowscriptaccess=’always’ allowfullscreen=’true’ menu=’false’ quality=’best’ bgcolor=’#000000′ name=’v_player_cctv’ src=’http://dianshiju.cntv.cn/nettv/Library/tongyong/player/OutSidePlayer.swf’ type=’application/x-shockwave-flash’ lk_mediaid=’lk_juiceapp_mediaPopup_1257416656250′ lk_media=’yes’/>",
"refURL": "http://dianying.cntv.cn/lcomedy/C15956/classpage/video/20100128/100696.shtml",
"streams": [
{
"rtmpHost": "rtmp://streaming.cctvpic.com/vod/",
"streamName": "mp4:v/2010/01/28/65f94038a6f14759bf061da589feba26_h264218000nero_aac32.mp4",
"bitRate": "250"
},
{
"rtmpHost": "rtmp://streaming.cctvpic.com/vod/",
"streamName": "mp4:v/2010/01/28/65f94038a6f14759bf061da589feba26_h264418000nero_aac32.mp4",
"bitRate": "450"
},
{
"rtmpHost": "rtmp://streaming.cctvpic.com/vod/",
"streamName": "mp4:v/2010/01/28/65f94038a6f14759bf061da589feba26_h264818000nero_aac32.mp4",
"bitRate": "850"
},
{
"rtmpHost": "rtmp://streaming.cctvpic.com/vod/",
"streamName": "mp4:v/2010/01/28/65f94038a6f14759bf061da589feba26_h2641436000nero_aac64.mp4",
"bitRate": "1500"
}
]
}

rtmp 是adobe用于flash流媒体的播放协议,详情猛击这里 http://www.51testing.com/?uid-8776-action-viewspace-itemid-81594

关于rtmp的播放,我也不清楚,在反编译的AS中截取这么几段代码,剩下的请自己分析吧

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override protected function initNetConnection():void{
this.nc = new NetConnection();
this.nc.addEventListener(NetStatusEvent.NET_STATUS, this.ncNetStatuHandler);
this.nc.addEventListener(SecurityErrorEvent.SECURITY_ERROR, this.ncSecurityHandler);
this.nc.addEventListener(IOErrorEvent.IO_ERROR, this.ncIOErrorHandler);
this.nc.addEventListener(AsyncErrorEvent.ASYNC_ERROR, this.ncAsyncErrorHandler);
this.nc.client = new VideoPlayerClient(this);
this.nc.call("checkBandwidth", null);
}
override public function play():void{
if (!this.isStartPlay){
this.nc.connect(_modelLocator.currentVideoInfo.rtmpHost);
} else {
if (this.ns != null){
this.ns.resume();
this.isPause = false;
_dispatcher.dispatchEvent(new ControlBarEvent(ControlBarEvent.EVENT_VIDEO_PLAY));
};
};
}

private function createStream():void{
this.ns = new NetStream(this.nc);
this.ns.bufferTime = this.BUFFER_TIME;
this.ns.addEventListener(NetStatusEvent.NET_STATUS, this.nsNetStatusHandler);
this.ns.addEventListener(IOErrorEvent.IO_ERROR, this.nsIOErrorHandler);
this.ns.addEventListener(AsyncErrorEvent.ASYNC_ERROR, this.nsAsyncErrorHandler);
this.ns.client = new VideoPlayerClient(this);
this.video = new Video();
this.video.smoothing = true;
this.video.attachNetStream(this.ns);
this.psFilter = new PSFilterTools(this.video);
this.addChild(this.video);
setMask();
this.ns.play(_modelLocator.currentVideoInfo.streamName);
}