[good]ffmpeg直接获取rtsp监控摄像头流信息实现远程监控

<p>转载地址：http://www.52codes.net/article/277.html</p>
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<p style="font-family:瀹嬩綋; text-indent:2em; padding-top:5px; padding-bottom:5px; color:rgb(51,51,51); font-size:14px; line-height:25px"> 网上大多数的教程都是ffmpeg打开本地视频的教程，没有直接读取摄像头的教程的，有些摄像头都是rtsp的，这边吾爱的技术人员为大家提供了一个解决方案</p>
<p style="font-family:瀹嬩綋; text-indent:2em; padding-top:5px; padding-bottom:5px; color:rgb(51,51,51); font-size:14px; line-height:25px"> ffmpeg直接获取摄像监控的rtsp实在远程监控，在线直播的功能</p>
<p style="font-family:瀹嬩綋; text-indent:2em; padding-top:5px; padding-bottom:5px; color:rgb(51,51,51); font-size:14px; line-height:25px"> 代码如下：</p>
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