134 lines
3.2 KiB
JavaScript
134 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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const FileSystem = require("fs");
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const Path = require("path");
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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", "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01"]
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},
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video : {
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codecs : ["vp9","vp8","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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let player;
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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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let mp4;
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//Get all files in recording dir
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const files = FileSystem.readdirSync('recordings');
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for(let i in files)
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{
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if (Path.extname(files[i])===".mp4")
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{
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//got ir
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mp4 = files[i];
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break;
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}
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}
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//Check
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if (!mp4)
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{
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console.error("no mp4 found");
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return connection.close();
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}
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//Create player
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player = MediaServer.createPlayer(Path.join("recordings",mp4));
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//Process the sdp
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var offer = SDPInfo.process(msg.offer);
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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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//Set RTP remote properties
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transport.setRemoteProperties(offer);
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transport.dump("recordings/play-"+ Date.now()+".pcap",{
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outgoing : true,
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rtcp : true
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});
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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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//Create new local stream with only video
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const outgoingStream = transport.createOutgoingStream({
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audio: true,
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video: true
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});
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//Copy incoming data from the broadcast stream to the local one
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outgoingStream.attachTo(player);
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//Get local stream info
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const info = outgoingStream.getStreamInfo();
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//Add local stream info it to the answer
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answer.addStream(info);
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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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//Stop
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transport.stop();
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//Stop playback too
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player.stop();
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});
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} else if (msg.cmd==="PLAY") {
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player.play({
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repeat : true
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});
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}
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});
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}; |