2013-10-01 20:43:07 +02:00
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<!DOCTYPE html>
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<html>
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<!-- Load the polyfill to switch-hit between Chrome and Firefox -->
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<script src='../../base/adapter.js'></script>
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<head>
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<title>PC1 SDP Munge Demo</title>
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<style>
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div#left {
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float: left;
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margin: 0 2em 2.5em 0;
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}
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div#right {
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float: left;
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margin: 0 0 1.5em 0;
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}
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div#buttons button {
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margin: 0 1.3em 1em 0;
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width: 13em;
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}
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div#buttons {
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max-width: 30em;
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}
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div#source {
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clear: both;
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margin: 0 0 1em 0;
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}
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div#select {
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margin: 0 0 1em 0;
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}
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select {
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margin: 0 1em 0 0;
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}
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h2 {
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font-size: 1em;
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font-family: sans-serif;
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margin: 0 0 0.3em 0;
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padding: 0;
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}
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textarea {
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height: 20em;
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width: 98%;
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}
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video {
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background: #666;
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margin: 0 0 1.5em 0;
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width: 320px;
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height: 240px;
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}
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</style>
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</head>
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<body>
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<div id="left">
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<h2>Local Preview</h2>
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<video id="vid1" autoplay muted></video>
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<h2>Offer SDP</h2>
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<textarea id="offerSdp"></textarea><br><br>
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</div>
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<div id="right">
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<h2>Remote Preview</h2>
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<video id="vid2" autoplay></video>
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<h2>Answer SDP</h2>
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<textarea id="answerSdp"></textarea>
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</div>
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<div id="source">
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<label for="audiosrc">Audio source: </label><select id="audiosrc"></select>
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<label for="videosrc">Video source: </label><select id="videosrc"></select>
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</div>
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<div id="select">Select an audio & video source, then click GetUserMedia:</div>
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<div id="buttons">
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<button id="btnMedia" onclick="getMedia()">GetUserMedia</button>
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<button id="btnCreatePC" onclick="createPC()">Create PeerConnection</button>
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<button id="btnOffer" onclick="createOffer()">Create Offer</button>
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<button id="btnSetOffer" onclick="setOffer()">Set Offer</button>
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<button id="btnAnswer" onclick="createAnswer()">Create Answer</button>
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<button id="btnSetAnswer" onclick="setAnswer()">Set Answer</button>
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<button id="btnHangUp" onclick="hangup()">Hang Up</button>
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</div>
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<script>
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var audio_select = document.getElementById("audiosrc");
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var video_select = document.getElementById("videosrc");
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btnMedia.disabled = false;
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btnCreatePC.disabled = true;
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btnOffer.disabled = true;
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btnSetOffer.disabled = true;
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btnAnswer.disabled = true;
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btnSetAnswer.disabled = true;
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btnHangUp.disabled = true;
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//audio_select.onchange = changeDevices;
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//video_select.onchange = changeDevices;
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var pc1,pc2;
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var localstream;
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var sdpConstraints = {'mandatory': {
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'OfferToReceiveAudio':true,
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'OfferToReceiveVideo':true }};
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refreshSources();
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function refreshSources() {
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if (webrtcDetectedVersion >= 30) {
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MediaStreamTrack.getSources(gotSources);
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} else {
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alert('Make sure that you have Chrome M30 to test device enumeration api.');
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}
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}
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function gotSources(sourceInfos) {
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var audio_count = 0;
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var video_count = 0;
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audio_select.disabled = true;
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video_select.disabled = true;
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audio_select.innerHTML = '';
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video_select.innerHTML = '';
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for (var i = 0; i < sourceInfos.length; i++) {
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var option = document.createElement("option");
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option.value = sourceInfos[i].id;
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option.text = sourceInfos[i].label;
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if (sourceInfos[i].kind === 'audio') {
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audio_count++;
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if (option.text === '') {
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option.text = 'Audio ' + audio_count;
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}
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audio_select.appendChild(option);
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} else {
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video_count++;
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if (option.text === '') {
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option.text = 'Video ' + video_count;
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}
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video_select.appendChild(option);
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}
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}
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audio_select.disabled = false;
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video_select.disabled = false;
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}
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function getMedia() {
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changeDevices();
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audio_select.disabled = true;
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video_select.disabled = true;
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btnMedia.disabled = true;
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btnCreatePC.disabled = false;
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}
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function changeDevices() {
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var audio_source = null;
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var video_source = null;
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if (audio_select.options.length > 0) {
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audio_source = audio_select.options[audio_select.selectedIndex].value;
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trace('selected audio_source :' + audio_source);
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}
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if (video_select.options.length > 0 ) {
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video_source = video_select.options[video_select.selectedIndex].value;
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trace('selected video_source :' + video_source);
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}
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setWebcamAndMic(audio_source, video_source);
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}
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function setWebcamAndMic(audio_source, video_source) {
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trace("Requesting local stream");
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// Call into getUserMedia via the polyfill (adapter.js).
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getUserMedia({ audio: {optional: [{sourceId: audio_source}]},
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video: {optional: [{sourceId: video_source}]}
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}, gotStream, function() {});
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}
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function gotStream(stream) {
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trace("Received local stream");
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// Call the polyfill wrapper to attach the media stream to this element.
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attachMediaStream(vid1, stream);
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localstream = stream;
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}
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function createPC() {
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btnCreatePC.disabled = true;
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btnOffer.disabled = false;
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btnAnswer.disabled = false;
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btnSetOffer.disabled = false;
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btnSetAnswer.disabled = false;
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btnHangUp.disabled = false;
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trace("Starting call");
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videoTracks = localstream.getVideoTracks();
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audioTracks = localstream.getAudioTracks();
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if (videoTracks.length > 0) {
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trace('Using Video device: ' + videoTracks[0].label);
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}
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if (audioTracks.length > 0) {
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trace('Using Audio device: ' + audioTracks[0].label);
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}
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var servers = null;
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pc1 = new RTCPeerConnection(servers);
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trace("Created local peer connection object pc1");
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pc1.onicecandidate = iceCallback1;
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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 = iceCallback2;
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pc2.onaddstream = gotRemoteStream;
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pc1.addStream(localstream);
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trace("Adding Local Stream to peer connection");
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}
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2013-11-23 01:37:50 +01:00
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function onSetSessionDescriptionSuccess() {
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trace('Set session description success.');
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}
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function onSetSessionDescriptionError(error) {
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trace('Failed to set session description: ' + error.toString());
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}
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// Workaround for crbug/322756.
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function maybeAddLineBreakToEnd(sdp) {
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var endWithLineBreak = new RegExp(/\n$/);
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if (!endWithLineBreak.test(sdp)) {
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return sdp + '\n';
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}
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return sdp;
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}
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2013-10-01 20:43:07 +02:00
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function createOffer(){
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pc1.createOffer(gotDescription1,null,null);
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}
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function setOffer(){
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var sdp = document.getElementById("offerSdp").value;
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2013-11-23 01:37:50 +01:00
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sdp = maybeAddLineBreakToEnd(sdp);
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2013-10-01 20:43:07 +02:00
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var offer = new RTCSessionDescription({type:'offer',sdp:sdp});
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2013-11-23 01:37:50 +01:00
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pc1.setLocalDescription(offer,
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onSetSessionDescriptionSuccess,
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onSetSessionDescriptionError);
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2013-10-01 20:43:07 +02:00
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trace("Modified Offer from pc1 \n" + sdp);
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2013-11-23 01:37:50 +01:00
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pc2.setRemoteDescription(offer,
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onSetSessionDescriptionSuccess,
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onSetSessionDescriptionError);
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2013-10-01 20:43:07 +02:00
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}
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function gotDescription1(desc) {
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document.getElementById("offerSdp").disabled = false;
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document.getElementById("offerSdp").value = desc.sdp;
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}
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function createAnswer(){
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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(gotDescription2, null, sdpConstraints);
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}
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function setAnswer(){
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var sdp = document.getElementById("answerSdp").value;
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2013-11-23 01:37:50 +01:00
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sdp = maybeAddLineBreakToEnd(sdp);
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2013-10-01 20:43:07 +02:00
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var answer = new RTCSessionDescription({type:'answer',sdp:sdp});
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2013-11-23 01:37:50 +01:00
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pc2.setLocalDescription(answer,
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onSetSessionDescriptionSuccess,
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onSetSessionDescriptionError);
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2013-10-01 20:43:07 +02:00
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trace("Modified Answer from pc2 \n" + sdp);
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2013-11-23 01:37:50 +01:00
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pc1.setRemoteDescription(answer,
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onSetSessionDescriptionSuccess,
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onSetSessionDescriptionError);
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2013-10-01 20:43:07 +02:00
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}
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function gotDescription2(desc) {
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document.getElementById("answerSdp").disabled = false;
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document.getElementById("answerSdp").value = desc.sdp;
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}
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function hangup() {
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trace("Ending call");
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localstream.stop();
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pc1.close();
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pc2.close();
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pc1 = null;
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pc2 = null;
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audio_select.disabled = false;
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video_select.disabled = false;
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document.getElementById("offerSdp").disabled = true;
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document.getElementById("answerSdp").disabled = true;
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btnMedia.disabled = false;
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btnCreatePC.disabled = true;
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btnOffer.disabled = true;
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btnSetOffer.disabled = true;
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btnAnswer.disabled = true;
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btnSetAnswer.disabled = true;
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btnHangUp.disabled = true;
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}
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function gotRemoteStream(e) {
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// Call the polyfill wrapper to attach the media stream to this element.
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attachMediaStream(vid2, e.stream);
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trace("Received remote stream");
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}
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function iceCallback1(event) {
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if (event.candidate) {
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pc2.addIceCandidate(new RTCIceCandidate(event.candidate));
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trace("Local ICE candidate: \n" + event.candidate.candidate);
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}
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}
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function iceCallback2(event) {
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if (event.candidate) {
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pc1.addIceCandidate(new RTCIceCandidate(event.candidate));
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trace("Remote ICE candidate: \n " + event.candidate.candidate);
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}
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}
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</script>
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</body>
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</html>
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