-
Notifications
You must be signed in to change notification settings - Fork 3.2k
/
Copy pathRTCPeerConnection-addTrack.https.html
394 lines (326 loc) · 15.7 KB
/
RTCPeerConnection-addTrack.https.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
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
<!doctype html>
<meta charset=utf-8>
<title>RTCPeerConnection.prototype.addTrack</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src=/resources/testdriver.js></script>
<script src=/resources/testdriver-vendor.js></script>
<script src='../mediacapture-streams/permission-helper.js'></script>
<script src="RTCPeerConnection-helper.js"></script>
<script>
'use strict';
// Test is based on the following editor draft:
// https://w3c.github.io/webrtc-pc/archives/20170605/webrtc.html
// The following helper functions are called from RTCPeerConnection-helper.js:
// getNoiseStream()
/*
5.1. RTCPeerConnection Interface Extensions
partial interface RTCPeerConnection {
...
sequence<RTCRtpSender> getSenders();
sequence<RTCRtpReceiver> getReceivers();
sequence<RTCRtpTransceiver> getTransceivers();
RTCRtpSender addTrack(MediaStreamTrack track,
MediaStream... streams);
RTCRtpTransceiver addTransceiver((MediaStreamTrack or DOMString) trackOrKind,
optional RTCRtpTransceiverInit init);
};
Note
While addTrack checks if the MediaStreamTrack given as an argument is
already being sent to avoid sending the same MediaStreamTrack twice,
the other ways do not, allowing the same MediaStreamTrack to be sent
several times simultaneously.
*/
/*
5.1. addTrack
4. If connection's [[isClosed]] slot is true, throw an InvalidStateError.
*/
promise_test(async t => {
const pc = new RTCPeerConnection();
t.add_cleanup(() => pc.close());
const stream = await getNoiseStream({ audio: true });
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
pc.close();
assert_throws_dom('InvalidStateError', () => pc.addTrack(track, stream))
}, 'addTrack when pc is closed should throw InvalidStateError');
/*
5.1. addTrack
8. If sender is null, run the following steps:
1. Create an RTCRtpSender with track and streams and let sender be
the result.
2. Create an RTCRtpReceiver with track.kind as kind and let receiver
be the result.
3. Create an RTCRtpTransceiver with sender and receiver and let
transceiver be the result.
4. Add transceiver to connection's set of transceivers.
*/
promise_test(async t => {
const pc = new RTCPeerConnection();
t.add_cleanup(() => pc.close());
const stream = await getNoiseStream({ audio: true });
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
const sender = pc.addTrack(track);
assert_true(sender instanceof RTCRtpSender,
'Expect sender to be instance of RTCRtpSender');
assert_equals(sender.track, track,
`Expect sender's track to be the added track`);
const transceivers = pc.getTransceivers();
assert_equals(transceivers.length, 1,
'Expect only one transceiver with sender added');
const [transceiver] = transceivers;
assert_equals(transceiver.sender, sender);
assert_array_equals([sender], pc.getSenders(),
'Expect only one sender with given track added');
const { receiver } = transceiver;
assert_equals(receiver.track.kind, 'audio');
assert_array_equals([transceiver.receiver], pc.getReceivers(),
'Expect only one receiver associated with transceiver added');
}, 'addTrack with single track argument and no stream should succeed');
promise_test(async t => {
const pc = new RTCPeerConnection();
t.add_cleanup(() => pc.close());
const stream = await getNoiseStream({ audio: true });
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
const sender = pc.addTrack(track, stream);
assert_true(sender instanceof RTCRtpSender,
'Expect sender to be instance of RTCRtpSender');
assert_equals(sender.track, track,
`Expect sender's track to be the added track`);
}, 'addTrack with single track argument and single stream should succeed');
promise_test(async t => {
const pc = new RTCPeerConnection();
t.add_cleanup(() => pc.close());
const stream = await getNoiseStream({ audio: true });
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
const stream2 = new MediaStream([track]);
const sender = pc.addTrack(track, stream, stream2);
assert_true(sender instanceof RTCRtpSender,
'Expect sender to be instance of RTCRtpSender');
assert_equals(sender.track, track,
`Expect sender's track to be the added track`);
}, 'addTrack with single track argument and multiple streams should succeed');
/*
5.1. addTrack
5. Let senders be the result of executing the CollectSenders algorithm.
If an RTCRtpSender for track already exists in senders, throw an
InvalidAccessError.
*/
promise_test(async t => {
const pc = new RTCPeerConnection();
t.add_cleanup(() => pc.close());
const stream = await getNoiseStream({ audio: true });
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
pc.addTrack(track, stream);
assert_throws_dom('InvalidAccessError', () => pc.addTrack(track, stream));
}, 'Adding the same track multiple times should throw InvalidAccessError');
/*
5.1. addTrack
6. The steps below describe how to determine if an existing sender can
be reused.
If any RTCRtpSender object in senders matches all the following
criteria, let sender be that object, or null otherwise:
- The sender's track is null.
- The transceiver kind of the RTCRtpTransceiver, associated with
the sender, matches track's kind.
- The sender has never been used to send. More precisely, the
RTCRtpTransceiver associated with the sender has never had a
currentDirection of sendrecv or sendonly.
7. If sender is not null, run the following steps to use that sender:
1. Set sender.track to track.
3. Enable sending direction on the RTCRtpTransceiver associated
with sender.
*/
promise_test(async t => {
const pc = new RTCPeerConnection();
t.add_cleanup(() => pc.close());
const transceiver = pc.addTransceiver('audio', { direction: 'recvonly' });
assert_equals(transceiver.sender.track, null);
assert_equals(transceiver.direction, 'recvonly');
await setMediaPermission("granted", ["microphone"]);
const stream = await navigator.mediaDevices.getUserMedia({audio: true});
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
const sender = pc.addTrack(track);
assert_equals(sender, transceiver.sender);
assert_equals(sender.track, track);
assert_equals(transceiver.direction, 'sendrecv');
assert_array_equals([sender], pc.getSenders());
}, 'addTrack with existing sender with null track, same kind, and recvonly direction should reuse sender');
promise_test(async t => {
const pc = new RTCPeerConnection();
t.add_cleanup(() => pc.close());
const transceiver = pc.addTransceiver('audio');
assert_equals(transceiver.sender.track, null);
assert_equals(transceiver.direction, 'sendrecv');
const stream = await getNoiseStream({audio: true});
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
const sender = pc.addTrack(track);
assert_equals(sender.track, track);
assert_equals(sender, transceiver.sender);
}, 'addTrack with existing sender that has not been used to send should reuse the sender');
promise_test(async t => {
const caller = new RTCPeerConnection();
t.add_cleanup(() => caller.close());
const callee = new RTCPeerConnection();
t.add_cleanup(() => callee.close());
const stream = await getNoiseStream({audio: true});
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
const transceiver = caller.addTransceiver(track);
{
const offer = await caller.createOffer();
await caller.setLocalDescription(offer);
await callee.setRemoteDescription(offer);
const answer = await callee.createAnswer();
await callee.setLocalDescription(answer);
await caller.setRemoteDescription(answer);
}
assert_equals(transceiver.currentDirection, 'sendonly');
caller.removeTrack(transceiver.sender);
{
const offer = await caller.createOffer();
await caller.setLocalDescription(offer);
await callee.setRemoteDescription(offer);
const answer = await callee.createAnswer();
await callee.setLocalDescription(answer);
await caller.setRemoteDescription(answer);
}
assert_equals(transceiver.direction, 'recvonly');
assert_equals(transceiver.currentDirection, 'inactive');
// |transceiver.sender| is currently not used for sending, but it should not
// be reused because it has been used for sending before.
const sender = caller.addTrack(track);
assert_true(sender != null);
assert_not_equals(sender, transceiver.sender);
}, 'addTrack with existing sender that has been used to send should create new sender');
promise_test(async t => {
const pc = new RTCPeerConnection();
t.add_cleanup(() => pc.close());
const transceiver = pc.addTransceiver('video', { direction: 'recvonly' });
assert_equals(transceiver.sender.track, null);
assert_equals(transceiver.direction, 'recvonly');
const stream = await getNoiseStream({audio: true});
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
const sender = pc.addTrack(track);
assert_equals(sender.track, track);
assert_not_equals(sender, transceiver.sender);
const senders = pc.getSenders();
assert_equals(senders.length, 2,
'Expect 2 senders added to connection');
assert_true(senders.includes(sender),
'Expect senders list to include sender');
assert_true(senders.includes(transceiver.sender),
`Expect senders list to include first transceiver's sender`);
}, 'addTrack with existing sender with null track, different kind, and recvonly direction should create new sender');
/*
TODO
5.1. addTrack
3. Let streams be a list of MediaStream objects constructed from the
method's remaining arguments, or an empty list if the method was
called with a single argument.
6. The steps below describe how to determine if an existing sender can
be reused. Doing so will cause future calls to createOffer and
createAnswer to mark the corresponding media description as sendrecv
or sendonly and add the MSID of the track added, as defined in [JSEP]
(section 5.2.2. and section 5.3.2.).
Non-Testable
5.1. addTrack
7. If sender is not null, run the following steps to use that sender:
2. Set sender's [[associated MediaStreams]] to streams.
Tested in RTCPeerConnection-onnegotiationneeded.html:
5.1. addTrack
10. Update the negotiation-needed flag for connection.
*/
promise_test(async t => {
const caller = new RTCPeerConnection();
t.add_cleanup(() => caller.close());
const callee = new RTCPeerConnection();
t.add_cleanup(() => callee.close());
const stream = await getNoiseStream({audio: true});
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
const transceiver = caller.addTransceiver(track);
// Note that this test doesn't process canididates.
{
const offer = await caller.createOffer();
await caller.setLocalDescription(offer);
await callee.setRemoteDescription(offer);
const answer = await callee.createAnswer();
await callee.setLocalDescription(answer);
await caller.setRemoteDescription(answer);
}
assert_equals(transceiver.currentDirection, 'sendonly');
await waitForIceGatheringState(caller, ['complete']);
await waitForIceGatheringState(callee, ['complete']);
const second_stream = await getNoiseStream({audio: true});
t.add_cleanup(() => second_stream.getTracks().forEach(track => track.stop()));
// There may be callee candidates in flight. It seems that waiting
// for a createOffer() is enough time to let them complete processing.
// TODO(https://crbug.com/webrtc/13095): Fix bug and remove.
await caller.createOffer();
const [second_track] = second_stream.getTracks();
caller.onicecandidate = t.unreached_func(
'No caller candidates should be generated.');
callee.onicecandidate = t.unreached_func(
'No callee candidates should be generated.');
caller.addTrack(second_track);
{
const offer = await caller.createOffer();
await caller.setLocalDescription(offer);
await callee.setRemoteDescription(offer);
const answer = await callee.createAnswer();
await callee.setLocalDescription(answer);
await caller.setRemoteDescription(answer);
}
// Check that we're bundled.
const [first_transceiver, second_transceiver] = caller.getTransceivers();
assert_equals(first_transceiver.transport, second_transceiver.transport);
}, 'Adding more tracks does not generate more candidates if bundled');
promise_test(async t => {
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
const stream = await getNoiseStream({ audio: true });
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
pc1.addTrack(track);
const offer = await pc1.createOffer();
// We do not await here; we want to ensure that the transceiver this creates
// is untouched by addTrack, and that addTrack creates _another_ transceiver
const srdPromise = pc2.setRemoteDescription(offer);
const sender = pc2.addTrack(track);
await srdPromise;
assert_equals(pc2.getTransceivers().length, 1, "Should have 1 transceiver");
assert_equals(pc2.getTransceivers()[0].sender, sender, "The transceiver should be the one added by addTrack");
}, 'Calling addTrack while sRD(offer) is pending should allow the new remote transceiver to be the same one that addTrack creates');
promise_test(async t => {
const pc1 = new RTCPeerConnection();
t.add_cleanup(() => pc1.close());
const pc2 = new RTCPeerConnection();
t.add_cleanup(() => pc2.close());
pc1.addTransceiver('video');
const stream = await getNoiseStream({ audio: true });
t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
const [track] = stream.getTracks();
const offer = await pc1.createOffer();
const srdPromise = pc2.setRemoteDescription(offer);
assert_equals(pc2.getTransceivers().length, 0);
pc2.addTrack(track);
assert_equals(pc2.getTransceivers().length, 1);
const transceiver0 = pc2.getTransceivers()[0];
assert_equals(transceiver0.mid, null);
await srdPromise;
assert_equals(pc2.getTransceivers().length, 2);
const transceiver1 = pc2.getTransceivers()[1];
assert_equals(transceiver0.mid, null);
assert_not_equals(transceiver1.mid, null);
}, 'When addTrack is called while sRD is in progress, and both addTrack and sRD add a transceiver of different media types, the addTrack transceiver should come first, and then the sRD transceiver.');
</script>