URL规定：
rtsp://username:password@<ipaddress>/<videotype>/ch<number>/<streamtype>
01主码流：
rtsp://admin:[email protected]:554/h264/ch1/main/av_stream
01子码流：
rtsp://admin:[email protected]:554/h264/ch1/sub/av_stream
NVR地址：
rtsp://username:password@<address>:<port>/Streaming/Channels/<id>(?parm1=value1&parm2-=value2…)
2通道
rtsp://admin:[email protected]:554/Streaming/Channels/102?transportmode=unicast (单播)
rtsp://admin:[email protected]:554/Streaming/Channels/102?transportmode=multicast (多播)
回放取流地址
rtsp://username:password@<address>:<port>/Streaming/tracks/<id>(?parm1=value1&parm2-=value2…)
通道1样例
rtsp://admin:[email protected]:554/Streaming/tracks/101?starttime=20120802t063812z&endtime=20120802t064816z
注意：如果之前尝试多次取流错误，请重启取流摄像头