导入数据库表和音视频demo

2023-09-14 14:59:57 +08:00
parent c0ca154d31
commit 736c5376e0
157 changed files with 11044 additions and 0 deletions
--- a/media-server-demo-node/lib/svc.js
+++ b/media-server-demo-node/lib/svc.js
@@ -0,0 +1,153 @@
+//Get the Medooze Media Server interface
+const MediaServer = require("medooze-media-server");
+
+//Get Semantic SDP objects
+const SemanticSDP	= require("semantic-sdp");
+const SDPInfo		= SemanticSDP.SDPInfo;
+const MediaInfo		= SemanticSDP.MediaInfo;
+const CandidateInfo	= SemanticSDP.CandidateInfo;
+const DTLSInfo		= SemanticSDP.DTLSInfo;
+const ICEInfo		= SemanticSDP.ICEInfo;
+const StreamInfo	= SemanticSDP.StreamInfo;
+const TrackInfo		= SemanticSDP.TrackInfo;
+const Direction		= SemanticSDP.Direction;
+const CodecInfo		= SemanticSDP.CodecInfo;
+
+const Capabilities = {
+	video : {
+		codecs		: ["vp9"],
+		rtx		: true,
+		rtcpfbs		: [
+			{ "id": "transport-cc"},
+			{ "id": "ccm", "params": ["fir"]},
+			{ "id": "nack"},
+			{ "id": "nack", "params": ["pli"]}
+		],
+		extensions	: [ "http://www.ietf.org/id/draft-holmer-rmcat-transport-wide-cc-extensions-01"]
+	}
+};
+
+module.exports = function(request,protocol,endpoint)
+{
+	const connection = request.accept(protocol);
+
+	connection.on('message', (frame) =>
+	{
+		//Get cmd
+		var msg = JSON.parse(frame.utf8Data);
+
+		//Get cmd
+		if (msg.cmd==="OFFER")
+		{
+			const streams = {};
+
+			//Process the sdp
+			var offer = SDPInfo.process(msg.offer);
+
+			//Create an DTLS ICE transport in that enpoint
+			const transport = endpoint.createTransport(offer);
+			
+			//Enable probing
+			transport.setBandwidthProbing(true);
+			transport.setMaxProbingBitrate(512000);
+			
+			//DUMP
+			//transport.dump("recordings/svc-"+ts+".pcap",{incoming:true,rtcp:true,rtpHeadersOnly:true,bwe:true});
+
+			//Set RTP remote properties
+			 transport.setRemoteProperties({
+				audio : offer.getMedia("audio"),
+				video : offer.getMedia("video")
+			});
+
+			//Create local SDP info
+			const answer = offer.answer({
+				dtls		: transport.getLocalDTLSInfo(),
+				ice		: transport.getLocalICEInfo(),
+				candidates	: endpoint.getLocalCandidates(),
+				capabilities	: Capabilities
+			});
+
+			//Set RTP local  properties
+			transport.setLocalProperties({
+				video : answer.getMedia("video")
+			});
+			
+			//Get offered stream info
+			const offered = offer.getFirstStream();
+			
+			//Create the remote stream into the transports
+			const incomingStream = transport.createIncomingStream(offered);
+
+			//Create new local stream
+			const outgoingStream  = transport.createOutgoingStream({
+				audio: false,
+				video: true
+			});
+
+			//Get local stream info
+			const info = outgoingStream.getStreamInfo();
+
+			//Copy incoming data from the remote stream to the local one
+			const transponder = connection.transporder = outgoingStream.attachTo(incomingStream)[0];
+			
+			//Start on low
+			transponder.selectLayer(0,0);
+			
+			//Listen for bwe events
+			transport.on("targetbitrate",	bitrate=>{
+				//Get previous layer ids
+				const sid = transponder.getSelectedSpatialLayerId();
+				const tid = transponder.getSelectedTemporalLayerId();
+				//Select stream layer from bitrate
+				const rate = transponder.setTargetBitrate(bitrate);
+				//Get next layer
+				const next = rate.layers[rate.layerIndex-1];
+				//Probing
+				let probing = false;
+				//If the jump is lower
+				if (next)
+				{
+					//Set probing bitrate
+					probing = next.bitrate-rate;
+					//Set it on transport
+					transport.setMaxProbingBitrate(next.bitrate-rate);
+					//Enable
+					transport.setBandwidthProbing(true);
+				} else 
+					//Disable
+					transport.setBandwidthProbing(false);
+					
+				//Log
+				console.log("targetbitrate :" + bitrate + " probing:" + probing +" sid:" + transponder.getSelectedSpatialLayerId() + " tid:" +transponder.getSelectedTemporalLayerId());
+				//If changed
+				if (sid!=transponder.getSelectedSpatialLayerId() || tid!=transponder.getSelectedTemporalLayerId())
+					//Send response
+					connection.sendUTF(JSON.stringify({
+						sid : transponder.getSelectedSpatialLayerId(),
+						tid : transponder.getSelectedTemporalLayerId()
+					}));
+			});
+
+			//Add local stream info it to the answer
+			answer.addStream(info);
+
+			//Add to streams
+			streams[incomingStream.getId()] = incomingStream;
+
+			//Send response
+			connection.sendUTF(JSON.stringify({
+				answer : answer.toString()
+			}));
+
+			//Close on disconnect
+			connection.on("close",() => {
+				//Stop
+				transport.stop();
+			});
+		} else {
+			//Select layer
+			connection.transporder.selectLayer(parseInt(msg.spatialLayerId),parseInt(msg.temporalLayerId));
+		}
+	});
+};