很早前买了个小兴看看Memo，但是它明明支持RTSP功能却通过一些方式加密了播放地址 用Wireshark抓包后可看到请求视频地址的方式
GET /common_page/GetVideoURL_lua.lua?codecType=1&_=1532614414122 HTTP/1.1
Accept: application/xml, text/xml, */*; q=0.01
X-Requested-With: XMLHttpRequest
Referer: http://192.168.50.21/
Accept-Language: zh-Hans-CN,zh-Hans;q=0.5
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; rv:11.0) like Gecko
Host: 192.168.50.21
Connection: Keep-Alive
Cookie: CurStreamID=1
HTTP/1.1 200 OK
Server: Mini web server 1.0 ZTE corp 2005.
Accept-Ranges: bytes
Connection: close
Cache-Control: no-cache,no-store
Content-Length: 423
Content-Type: text/html; charset=utf-8
<ajax_response_xml_root><IF_ERRORPARAM>SUCC</IF_ERRORPARAM><IF_ERRORTYPE>SUCC</IF_ERRORTYPE><IF_ERRORSTR>SUCC</IF_ERRORSTR><IF_ERRORID>0</IF_ERRORID><OBJ_GETVIDEOURL_ID><Instance><ParaName>_InstID</ParaName><ParaValue>IGD</ParaValue><ParaName>webURL</ParaName><ParaValue>rtsp://192.168.50.21:554/live/ch00_0?token=vixcufLSMixBQwsC</ParaValue></Instance></OBJ_GETVIDEOURL_ID><codecType>1</codecType></ajax_response_xml_root>
本地简单利用的话就是构造一个GET请求，然后解析返回的xml即可，这里得到的地址是： rtsp://192.168.50.21:554/live/ch00_0?token=vixcufLSMixBQwsC
要注意的是这个地址只能播放一次，下次需要重新获取新地址