mirror of
https://github.com/ZLMediaKit/ZLMediaKit.git
synced 2024-11-23 11:17:09 +08:00
135 lines
3.2 KiB
JavaScript
135 lines
3.2 KiB
JavaScript
/*
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* Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree.
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*/
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'use strict';
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var vid2 = document.getElementById('vid2');
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var btn1 = document.getElementById('btn1');
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var btn3 = document.getElementById('btn3');
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var input1 = document.getElementById('input1');
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btn1.addEventListener('click', start);
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btn3.addEventListener('click', stop);
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btn1.disabled = false;
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btn3.disabled = true;
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var pc2 = null;
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var xmlhttp = null;
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function start() {
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btn1.disabled = true;
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btn3.disabled = false;
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trace('Starting Call');
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var servers = null;
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var addr = input1.value;
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pc2 = new RTCPeerConnection(servers);
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trace('Created remote peer connection object pc2');
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pc2.onicecandidate = iceCallback;
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pc2.onaddstream = gotRemoteStream;
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if (window.XMLHttpRequest)
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{
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// IE7+, Firefox, Chrome, Opera, Safari <20><><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>д<EFBFBD><D0B4><EFBFBD>
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xmlhttp=new XMLHttpRequest();
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}
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else
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{
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// IE6, IE5 <20><><EFBFBD><EFBFBD><EFBFBD>ִ<EFBFBD>д<EFBFBD><D0B4><EFBFBD>
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xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
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}
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xmlhttp.onreadystatechange=function()
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{
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if (xmlhttp.readyState==4 && xmlhttp.status==200)
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{
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var res = xmlhttp.responseText;
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gotoffer(res);
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}
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}
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xmlhttp.open("GET",addr,true);
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xmlhttp.send();
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}
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function onCreateSessionDescriptionError(error) {
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trace('Failed to create session description: ' + error.toString());
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stop();
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}
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function onCreateAnswerError(error) {
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trace('Failed to set createAnswer: ' + error.toString());
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stop();
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}
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function onSetLocalDescriptionError(error) {
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trace('Failed to set setLocalDescription: ' + error.toString());
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stop();
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}
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function onSetLocalDescriptionSuccess() {
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trace('localDescription success.');
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}
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function gotoffer(offer) {
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trace('Offer from server \n' + offer);
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//??????offer sdp????????RTCSessionDescription????
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var desc = new RTCSessionDescription();
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desc.sdp = offer;
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desc.type = 'offer';
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pc2.setRemoteDescription(desc);
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// Since the 'remote' side has no media stream we need
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// to pass in the right constraints in order for it to
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// accept the incoming offer of audio and video.
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pc2.createAnswer().then(
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gotDescription2,
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onCreateSessionDescriptionError
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);
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}
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function gotDescription2(desc) {
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// Provisional answer, set a=inactive & set sdp type to pranswer.
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/*desc.sdp = desc.sdp.replace(/a=recvonly/g, 'a=inactive');
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desc.type = 'pranswer';*/
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pc2.setLocalDescription(desc).then(
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onSetLocalDescriptionSuccess,
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onSetLocalDescriptionError
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);
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trace('Pranswer from pc2 \n' + desc.sdp);
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//conn.send(JSON.stringify(desc));
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// send desc.sdp to server
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}
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function stop() {
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trace('Ending Call' + '\n\n');
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pc2.close();
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pc2 = null;
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}
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function gotRemoteStream(e) {
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vid2.srcObject = e.stream;
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trace('Received remote stream');
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}
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function iceCallback(event) {
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if (event.candidate) {
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trace('Remote ICE candidate: \n ' + event.candidate.candidate);
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//conn.send(JSON.stringify(event.candidate));
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}
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else {
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// All ICE candidates have been sent
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}
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}
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