forked from mozilla/webrtc-landing
-
Notifications
You must be signed in to change notification settings - Fork 0
/
pc_forward.html
350 lines (307 loc) · 10.8 KB
/
pc_forward.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
<html><head>
<meta http-equiv="content-type" content="text/html; charset=ISO-8859-1">
<title>Simple RTCPeerConnection Video Test</title>
<style>
#player1 {
position:relative;
width:640px;
height:480px;
float:right;
}
#player2 {
position:relative;
width:640px;
height:480px;
float:left;
}
#mainvideo {
position:absolute;
top:0;
left:0;
z-index:0;
}
#localvideo1, #localvideo2 {
position:absolute;
top:0;
left:0;
z-index:1;
}
.hidden
{
display: none;
}
</style>
</head>
<body>
<h1>Simple RTCPeerConnection Video Test</h1>
<div>
<button id="tehbutton" onclick="start();">Start!</button>
<input type="checkbox" id="fake" value="Use Fake Video/Audio for one stream">
<label for="fake">Use Fake Audio/Video for one stream</label>
<input type="checkbox" id="oneway" value="one-way call">
<label for="oneway">One-way call</label>
<input type="checkbox" id="audio_only" value="Audio-only call">
<label for="audio_only">Audio-only call</label>
<input type="checkbox" id="disable_video" value="Disable video" onclick="disable_media(pc1, 1, 0);">
<label for="disable_video">Disable video</label>
<input type="checkbox" id="disable_audio" value="Disable audio" onclick="disable_media(pc1, 0, 0);">
<label for="disable_audio">Disable audio</label>
<input type="checkbox" id="requireh264" value="Require H.264" onclick="h264StateChange(this);">
<label for="requireh264">Require H.264 video</label>
<input type="checkbox" id="requireg722" value="Require G.722">
<label for="requireg722">Require G.722 audio</label>
<div id="divH264" class="hidden">
<br>
<input type="checkbox" id="prefermode0" value="Prefer Mode 0">
<label for="prefermode0">Prefer H.264 Mode 0</label>
</div>
</div><br>
<div>
<div id="player1">
<video tabindex="0" id="pc1video" class="mainvideo" controls="controls" height="480" width="640" muted></video>
<video tabindex="0" id="localvideo1" controls="controls" height="120" width="160" muted></video></div>
<div id="player2">
<video tabindex="0" id="pc2video" class="mainvideo" controls="controls" height="480" width="640" muted></video>
<video tabindex="0" id="localvideo2" controls="controls" height="120" width="160" muted></video></div><br>
<br style="clear: left;" />
</div>
<div id="log"></div>
<script type="application/javascript">
// Lame clone function. Not efficient but we don't have jQuery.
function copy_dictionary (obj) {
return JSON.parse(JSON.stringify(obj));
}
function log(msg) {
let div = document.getElementById("log");
div.innerHTML = div.innerHTML + "<p>" + msg + "</p>";
}
let pc1video = document.getElementById("pc1video");
let pc2video = document.getElementById("pc2video");
let button = document.getElementById("tehbutton");
let localvideo1 = document.getElementById("localvideo1");
let localvideo2 = document.getElementById("localvideo2");
let fake = document.getElementById("fake");
fake.checked = true;
let oneway = document.getElementById("oneway");
oneway.checked = false;
let audio_only = document.getElementById("audio_only");
audio_only.checked = false;
let video_disable = document.getElementById("disable_video");
let audio_disable = document.getElementById("disable_audio");
let requireh264 = document.getElementById("requireh264");
requireh264.checked = false;
let prefermode0 = document.getElementById("prefermode0");
prefermode0.checked = false;
let requireg722 = document.getElementById("requireg722");
requireg722.checked = false;
let pc1;
let pc2;
let pc1_offer;
let pc2_answer;
let offer_constraints;
let answer_constraints;
function disable_media(pc, type, array_index) {
log("disable_media");
var stream;
if (pc == pc1)
stream = localvideo1.mozSrcObject;
else if (pc == pc2)
stream = localvideo2.mozSrcObject;
else log("bad pc " + pc);
if (stream) {
log("track[" + array_index + "] = " + stream.getVideoTracks()[array_index]);
if (type == 1)
stream.getVideoTracks()[array_index].enabled = !video_disable.checked;
else if (type == 0)
stream.getAudioTracks()[array_index].enabled = !audio_disable.checked;
else
log("bad type");
}
else
log("no stream");
}
function failed(code) {
log("Failure callback: " + JSON.stringify(code));
}
// pc1.createOffer finished, call pc1.setLocal
function step1(offer) {
log("Offer: " + sdpPrettyPrint(offer.sdp));
pc1_offer = offer;
if (requireh264.checked) {
// to enforce the usage of H264 we remove the VP8 codec from the offer
offer.sdp = removeVP8(offer.sdp);
if (prefermode0.checked) {
offer.sdp = preferMode0(offer.sdp);
}
pc1_offer = offer;
log("No VP8 Offer: " + sdpPrettyPrint(offer.sdp));
if (!offer.sdp.match(/a=rtpmap:[0-9]+ H264/g)) {
log("No H264 found in the offer!!!");
return;
}
}
if (requireg722.checked) {
// to enforce the usage of G.722 we remove other codecs from the offer
offer.sdp = removeNonG722(offer.sdp);
pc1_offer = offer;
log("G.722 only Offer: " + sdpPrettyPrint(offer.sdp));
if (!offer.sdp.match(/a=rtpmap:[0-9]+ G722/g)) {
log("No G722 found in the offer!!!");
return;
}
}
pc1.setLocalDescription(offer, step2, failed);
}
// replace CR NL with HTML breaks
function sdpPrettyPrint(sdp) {
return sdp.replace(/[\r\n]+/g, '<br>');
}
function h264StateChange(cb)
{
var h264opts = document.getElementById('divH264');
if(cb.checked){
h264opts.style.display = 'block';
} else {
h264opts.style.display = 'none';
}
}
// Also remove mode 0 if it's offered
// Note, we don't bother removing the fmtp lines, which makes a good test
// for some SDP parsing issues.
function removeVP8(sdp) {
updated_sdp = sdp.replace("a=rtpmap:120 VP8/90000\r\n","");
updated_sdp = updated_sdp.replace(/m=video ([0-9]+) RTP\/SAVPF ([0-9 ]*) 120/g, "m=video $1 RTP\/SAVPF $2");
updated_sdp = updated_sdp.replace(/m=video ([0-9]+) RTP\/SAVPF 120([0-9 ]*)/g, "m=video $1 RTP\/SAVPF$2");
updated_sdp = updated_sdp.replace("a=rtcp-fb:120 nack\r\n","");
updated_sdp = updated_sdp.replace("a=rtcp-fb:120 nack pli\r\n","");
updated_sdp = updated_sdp.replace("a=rtcp-fb:120 ccm fir\r\n","");
return updated_sdp;
}
// Remove anything that's not G.722 from the m=audio line
function removeNonG722(sdp) {
updated_sdp = sdp.replace(/m=audio ([0-9]+) RTP\/SAVPF ([0-9 ]*)/g, "m=audio $1 RTP\/SAVPF 9");
return updated_sdp;
}
function preferMode0(sdp) {
updated_sdp = updated_sdp.replace("126 97", "97 126");
return updated_sdp;
}
// pc1.setLocal finished, call pc2.setRemote
function step2() {
pc1.onicecandidate = function(obj) {
if (obj.candidate) {
log("pc1 found ICE candidate: " + JSON.stringify(obj.candidate));
pc2.addIceCandidate(obj.candidate);
} else {
log("pc1 got end-of-candidates signal");
}
}
pc2.setRemoteDescription(pc1_offer, step3, failed);
};
// pc2.setRemote finished, call pc2.createAnswer
function step3() {
pc2.createAnswer(step4, failed, answer_constraints);
}
// pc2.createAnswer finished, call pc2.setLocal
function step4(answer) {
log("Answer: " + sdpPrettyPrint(answer.sdp));
pc2_answer = answer;
if ((requireh264.checked) && (!answer.sdp.match(/a=rtpmap:[0-9]+ H264/g))) {
log("No H264 found in the answer!!!");
return;
}
if ((requireg722.checked) && (!answer.sdp.match(/a=rtpmap:[0-9]+ G722/g))) {
log("No G722 found in the answer!!!");
return;
}
pc2.setLocalDescription(answer, step5, failed);
}
// pc2.setLocal finished, call pc1.setRemote
function step5() {
pc2.onicecandidate = function(obj) {
if (obj.candidate) {
log("pc2 found ICE candidate: " + JSON.stringify(obj.candidate));
pc1.addIceCandidate(obj.candidate);
} else {
log("pc2 got end-of-candidates signal");
}
}
pc1.setRemoteDescription(pc2_answer, step6, failed);
}
// pc1.setRemote finished, media should be running!
function step6() {
log("HIP HIP HOORAY");
}
function start() {
button.innerHTML = "Stop!";
button.onclick = stop;
pc1 = new RTCPeerConnection();
pc2 = new RTCPeerConnection();
pc1.onaddstream = function(obj) {
log("pc1 got remote stream from pc2 " + obj.type);
pc1video.mozSrcObject = obj.stream;
pc1video.play();
setTimeout(pc1video.play, 1000);
}
pc2.onaddstream = function(obj) {
log("pc2 got remote stream from pc1 " + obj.type);
pc2video.mozSrcObject = obj.stream;
pc2video.play();
setTimeout(pc2video.play, 1000);
}
var myrequest = { audio: true };
if (!(audio_only.checked)) {
myrequest = { audio: true, video: true };
}
myrequest_reverse = copy_dictionary(myrequest);
if (fake.checked) {
myrequest_reverse.fake = true;
}
if (oneway.checked) {
offer_constraints = { mandatory: { OfferToReceiveVideo : false,
OfferToReceiveAudio: false } };
answer_constraints = { mandatory: { OfferToReceiveVideo : true,
OfferToReceiveAudio: true } };
}
navigator.mozGetUserMedia(myrequest, function(video1) {
// Add stream obtained from gUM to <video> to start media flow.
localvideo1.mozSrcObject = video1;
if (video_disable.checked)
localvideo1.mozSrcObject.getVideoTracks()[0].enabled = false;
if (audio_disable.checked)
localvideo1.mozSrcObject.getAudioTracks()[0].enabled = false;
localvideo1.play();
pc1.addStream(video1);
if (!oneway.checked) {
if (!fake.checked) {
navigator.mozGetUserMedia(myrequest_reverse, function(video2) {
localvideo2.mozSrcObject = video2;
localvideo2.play();
pc2.addStream(video2);
// Start the signaling.
pc1.createOffer(step1, failed, offer_constraints );
}, failed);
} else {
localvideo2.src =
"http://ie.microsoft.com/TEStdrive/Graphics/VideoFormatSupport/big_buck_bunny_trailer_480p.webm";
localvideo2.play();
let video2 = localvideo2.mozCaptureStreamUntilEnded();
localvideo2.play(); // attempt in vain to get it to keep playing
log("video 2 = " + video2);
pc2.addStream(video2)
// Start the signaling.
pc1.createOffer(step1, failed, offer_constraints );
}
} else {
pc1.createOffer(step1, failed, offer_constraints );
}
}, failed);
}
function stop() {
pc1.close();
pc2.close();
button.innerHTML = "Start!";
button.onclick = start;
}
</script>
</body></html>