2013-03-04 19:57:09 +01:00
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<html>
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<head>
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<title>PeerConnection DTMF Demo 1</title>
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<!-- Load the polyfill to switch-hit between Chrome and Firefox -->
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2013-03-05 03:04:07 +01:00
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<script src="../../base/adapter.js"></script>
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2013-03-04 19:57:09 +01:00
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<style>
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button {
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font: 18px sans-serif;
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padding: 8px;
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}
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#left { position: absolute; left: 20; top: 0; width: 50%; }
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#right { position: absolute; right: 0; top: 0; width: 50%; }
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</style>
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</head>
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<body onload="onload()">
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<div id="left">
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<audio id="audio1" autoplay="autoplay" muted="true"></audio>
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<h3>Send Dtmf Tones</h3>
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<div id="dialingPad"></div>
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<br><br>
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duration:
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2013-03-07 22:59:23 +01:00
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<input type="text" id="dtmf-tones-duration" size="10" value="500"/>
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2013-03-04 19:57:09 +01:00
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<br><br>
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tone-gap:
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<input type="text" id="dtmf-tones-gap" size="10" value="50"/>
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<br><br>
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tones:
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2013-03-07 22:59:23 +01:00
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<input type="text" id="dtmf-tones" size="10"
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value="1199##9,6633221,9966332,9966332,1199##9,6633221"/>
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2013-03-04 19:57:09 +01:00
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<button id="sendTones"
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onclick="sendTone(document.getElementById('dtmf-tones').value)">Send tones
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</button>
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<br><br>
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<button id="callBtn" onclick="call()">Call</button>
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<button id="hangBtn" onclick="hangup()">Hang Up</button>
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<br><br>
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</div>
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<div id="right">
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<audio id="audio2" autoplay="autoplay"></audio>
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<h3>Sent Tones</h3>
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<textarea id="dtmfTonesSent" rows="12" cols="40" disabled="true">
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</textarea><br>
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</div>
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<script>
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callBtn.disabled = false;
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hangBtn.disabled = true;
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sendTones.disabled = true;
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var pc1 = null,pc2 = null;
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var localstream = null;
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var dtmfSender = null;
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var sdpConstraints = {'mandatory': {
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'OfferToReceiveAudio':true,
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'OfferToReceiveVideo':false }};
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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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localstream = stream;
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audioTracks = localstream.getAudioTracks();
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if (audioTracks.length > 0)
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trace('Using Audio device: ' + audioTracks[0].label);
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pc1.addStream(localstream);
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trace("Adding Local Stream to peer connection");
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pc1.createOffer(gotDescription1);
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}
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function call() {
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trace("Starting call");
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var servers = null;
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var pc_constraints = {"optional": []};
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pc1 = new RTCPeerConnection(servers,pc_constraints);
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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,pc_constraints);
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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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trace("Requesting local stream");
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// Call into getUserMedia via the polyfill (adapter.js).
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getUserMedia({audio:true, video:false},
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gotStream, function() {});
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callBtn.disabled = true;
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hangBtn.disabled = false;
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sendTones.disabled = false;
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}
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function gotDescription1(desc){
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pc1.setLocalDescription(desc);
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trace("Offer from pc1 \n" + desc.sdp);
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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.
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pc2.createAnswer(gotDescription2, null, sdpConstraints);
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}
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function gotDescription2(desc){
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2013-04-08 23:23:58 +02:00
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// Setting PCMU as the preferred codec.
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desc.sdp = desc.sdp.replace(/m=.*\r\n/, "m=audio 1 RTP/SAVPF 0 126\r\n");
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// Workaround for issue 1603.
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desc.sdp = desc.sdp.replace(/.*fmtp.*\r\n/g, "");
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2013-03-04 19:57:09 +01:00
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pc2.setLocalDescription(desc);
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trace("Answer from pc2 \n" + desc.sdp);
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pc1.setRemoteDescription(desc);
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}
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function hangup() {
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trace("Ending call");
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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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localstream = null;
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dtmfSender = null;
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callBtn.disabled = false;
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hangBtn.disabled = true;
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sendTones.disabled = true;
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document.getElementById("dtmfTonesSent").value = "Dtmf de-activated\n";
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}
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function gotRemoteStream(e){
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2013-04-26 01:22:03 +02:00
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// Call the polyfill wrapper to attach the media stream to this element.
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attachMediaStream(audio2, e.stream);
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2013-03-04 19:57:09 +01:00
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trace("Received remote stream");
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enableDtmfSender();
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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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function enableDtmfSender(){
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document.getElementById("dtmfTonesSent").value = "Dtmf activated\n";
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if (localstream != null) {
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var local_audio_track = localstream.getAudioTracks()[0];
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dtmfSender = pc1.createDTMFSender(local_audio_track);
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trace("Created DTMF Sender\n");
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dtmfSender.ontonechange = dtmfOnToneChange;
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}
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else {
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trace("No Local Stream to create DTMF Sender\n");
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}
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}
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function dtmfOnToneChange(tone){
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if (tone) {
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trace("Sent Dtmf tone: \t" + tone.tone);
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document.getElementById("dtmfTonesSent").value += tone.tone + '\t';
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}
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}
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function sendTone(tones){
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if (dtmfSender) {
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duration = document.getElementById("dtmf-tones-duration").value;
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gap = document.getElementById("dtmf-tones-gap").value;
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dtmfSender.insertDTMF(tones, duration, gap);
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}
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}
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function createDialingPad() {
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var tones = '1234567890*#ABCD';
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var dialingPad = document.getElementById('dialingPad');
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for (var i = 0; i < tones.length; ++i) {
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var tone = tones.charAt(i);
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dialingPad.innerHTML += '<button id="' +
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tone + '" onclick="sendTone(\'' + tone +
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'\')" style="height:40px; width: 30px">' + tone + '</button>';
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if ((i + 1) % 4 == 0) {
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dialingPad.innerHTML += '<br>';
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}
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}
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}
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function onload() {
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createDialingPad();
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}
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</script>
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</body>
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</html>
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