MMS appears to be a widely used protocol in sourcing interviews. It's a Windows Media Player protocol. Unfortunately the checkIfDead class cannot access these at current and result in coming back as dead at the moment.
We should investigate if these streams can be accessed with the cURL library to check for the presence of a stream behind it.
At the very least the class should be updated to return null instead of true or false for unsupported protocols.
$ echo -e 'DESCRIBE /radiotam RTSP/1.0\r\n\r\n' | nc -q 5 200.23.59.10 554 RTSP/1.0 200 OK Content-Type: application/sdp Vary: Accept X-Playlist-Gen-Id: 489 X-Broadcast-Id: 266 Content-Length: 1914 Date: Fri, 29 Sep 2017 17:49:43 GMT Server: WMServer/9.1.1.5001 Supported: com.microsoft.wm.srvppair, com.microsoft.wm.sswitch, com.microsoft.wm.eosmsg, com.microsoft.wm.fastcache, com.microsoft.wm.packetpairssrc, com.microsoft.wm.startupprofile Last-Modified: Sat, 30 Dec 1899 00:00:00 GMT Cache-Control: x-wms-stream-type="broadcast", no-cache, no-user-cache, private v=0 o=- 201709291749430538 201709291749430538 IN IP4 127.0.0.1 s=Radio Tamaulipas c=IN IP4 0.0.0.0 b=AS:21 a=maxps:1655 t=0 0 a=control:/radiotam/ a=etag:{CF0F99A9-33AA-58F4-01F0-8B792FC5166F} a=range:npt=2.600-2.600 a=type:broadcast a=recvonly a=pgmpu:data:application/x-wms-contentdesc,8,language,31,0,,44,WMS_CONTENT_DESCRIPTION_SERVER_BRANDING_INFO,31,12,WMServer/9.1,30,WMS_CONTENT_DESCRIPTION_RATING,31,0,,35,WMS_CONTENT_DESCRIPTION_DESCRIPTION,31,0,,9,copyright,31,0,,6,author,31,22,Gobierno%20de%20Tamaulipas,5,title,31,16,Radio%20Tamaulipas,51,WMS_CONTENT_DESCRIPTION_PLAYLIST_ENTRY_START_OFFSET,3,4,2600,47,WMS_CONTENT_DESCRIPTION_PLAYLIST_ENTRY_DURATION,3,1,0,58,WMS_CONTENT_DESCRIPTION_COPIED_METADATA_FROM_PLAYLIST_FILE,3,1,1,42,WMS_CONTENT_DESCRIPTION_PLAYLIST_ENTRY_URL,31,1,/%0D%0A a=pgmpu:data:application/vnd.ms.wms-hdr.asfv1;base64,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
Makes it seem feasible with the existing code base and some modifications.