122 lines
3.2 KiB
JavaScript
122 lines
3.2 KiB
JavaScript
//Get the Medooze Media Server interface
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const MediaServer = require("medooze-media-server");
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//Get Semantic SDP objects
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const SemanticSDP = require("semantic-sdp");
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const SDPInfo = SemanticSDP.SDPInfo;
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const MediaInfo = SemanticSDP.MediaInfo;
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const CandidateInfo = SemanticSDP.CandidateInfo;
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const DTLSInfo = SemanticSDP.DTLSInfo;
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const ICEInfo = SemanticSDP.ICEInfo;
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const StreamInfo = SemanticSDP.StreamInfo;
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const TrackInfo = SemanticSDP.TrackInfo;
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const Direction = SemanticSDP.Direction;
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const CodecInfo = SemanticSDP.CodecInfo;
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const Capabilities = {
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audio : {
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codecs : ["opus"],
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extensions : [ "urn:ietf:params:rtp-hdrext:ssrc-audio-level"]
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},
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video : {
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codecs : ["h264;packetization-mode=1"],
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rtx : true,
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rtcpfbs : [
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{ "id": "transport-cc"},
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{ "id": "ccm", "params": ["fir"]},
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{ "id": "nack"},
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{ "id": "nack", "params": ["pli"]}
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],
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extensions : [ "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01"]
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}
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};
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module.exports = function(request,protocol,endpoint)
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{
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const connection = request.accept(protocol);
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connection.on('message', (frame) =>
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{
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//Get cmd
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var msg = JSON.parse(frame.utf8Data);
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//Get cmd
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if (msg.cmd==="OFFER")
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{
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console.log(msg.offer);
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//Process the sdp
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var offer = SDPInfo.process(msg.offer);
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//Create recoreder
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const recorder = MediaServer.createRecorder ("recordings/"+ Date.now() +".mp4",{
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// refresh : 15000,
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// timeShift : 60000,
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disableHints : true,
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});
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//Create an DTLS ICE transport in that enpoint
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const transport = endpoint.createTransport(offer);
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transport.setBandwidthProbing(true);
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transport.setMaxProbingBitrate(1024000);
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transport.on("targetbitrate", bitrate=>console.log("targetbitrate " + bitrate));
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transport.on("dtlsstate", state=>console.log("dtlsstate:"+state));
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transport.dump("recordings/rec-"+ Date.now()+".pcap");
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//Set RTP remote properties
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transport.setRemoteProperties(offer);
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//Create local SDP info
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const answer = offer.answer({
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dtls : transport.getLocalDTLSInfo(),
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ice : transport.getLocalICEInfo(),
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candidates : endpoint.getLocalCandidates(),
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capabilities : Capabilities
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});
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//Set RTP local properties
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transport.setLocalProperties(answer);
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//For each stream offered
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for (let offered of offer.getStreams().values())
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{
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//Create the remote stream into the transport
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const incomingStream = transport.createIncomingStream(offered);
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//Create new local stream with only audio
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const outgoingStream = transport.createOutgoingStream({
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audio: false,
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video: true
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});
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//Get local stream info
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const info = outgoingStream.getStreamInfo();
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//Copy incoming data from the remote stream to the local one
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outgoingStream.attachTo(incomingStream);
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//Add local stream info it to the answer
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answer.addStream(info);
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//Record it
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recorder.record(incomingStream);
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}
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//setTimeout(()=>recorder.flush(),60000);
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//Send response
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connection.sendUTF(JSON.stringify({
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answer : answer.toString()
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}));
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//Close on disconnect
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connection.on("close",() => {
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console.log("close");
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//Stop
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recorder.stop();
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transport && transport.stop();
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});
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}
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});
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};
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