| Florent Castelli | 9f783ba | 2023-05-16 13:09:15 | [diff] [blame^] | 1 | <!DOCTYPE html> |
| 2 | <meta charset="utf-8"> |
| 3 | <title>RTCRtpEncodingParameters codec property</title> |
| 4 | <script src="/resources/testharness.js"></script> |
| 5 | <script src="/resources/testharnessreport.js"></script> |
| 6 | <script src="../webrtc/RTCPeerConnection-helper.js"></script> |
| 7 | <script src="../webrtc/third_party/sdp/sdp.js"></script> |
| 8 | <script src="../webrtc/simulcast/simulcast.js"></script> |
| 9 | <script> |
| 10 | 'use strict'; |
| 11 | |
| 12 | function findFirstCodec(name) { |
| 13 | return RTCRtpSender.getCapabilities(name.split('/')[0]).codecs.filter(c => c.mimeType.localeCompare(name, undefined, { sensitivity: 'base' }) === 0)[0]; |
| 14 | } |
| 15 | |
| 16 | function codecsNotMatching(mimeType) { |
| 17 | return RTCRtpSender.getCapabilities(mimeType.split('/')[0]).codecs.filter(c => c.mimeType.localeCompare(mimeType, undefined, {sensitivity: 'base'}) !== 0); |
| 18 | } |
| 19 | |
| 20 | function assertCodecEquals(a, b) { |
| 21 | assert_equals(a.mimeType, b.mimeType); |
| 22 | assert_equals(a.clockRate, b.clockRate); |
| 23 | assert_equals(a.channels, b.channels); |
| 24 | assert_equals(a.sdpFmtpLine, b.sdpFmtpLine); |
| 25 | } |
| 26 | |
| 27 | async function codecsForSender(sender) { |
| 28 | const rids = sender.getParameters().encodings.map(e => e.rid); |
| 29 | const stats = await sender.getStats(); |
| 30 | const codecs = [...stats] |
| 31 | .filter(([k, v]) => v.type === 'outbound-rtp') |
| 32 | .sort(([k, v], [k2, v2]) => rids.indexOf(v.rid) - rids.indexOf(v2.rid)) |
| 33 | .map(([k, v]) => stats.get(v.codecId).mimeType); |
| 34 | return codecs; |
| 35 | } |
| 36 | |
| 37 | promise_test(async t => { |
| 38 | const pc = new RTCPeerConnection(); |
| 39 | t.add_cleanup(() => pc.close()); |
| 40 | |
| 41 | const { sender } = pc.addTransceiver('audio'); |
| 42 | |
| 43 | let param = sender.getParameters(); |
| 44 | let encoding = param.encodings[0]; |
| 45 | |
| 46 | assert_equals(encoding.codec, undefined); |
| 47 | }, `Codec should be undefined by default on audio encodings`); |
| 48 | |
| 49 | promise_test(async t => { |
| 50 | const pc = new RTCPeerConnection(); |
| 51 | t.add_cleanup(() => pc.close()); |
| 52 | |
| 53 | const { sender } = pc.addTransceiver('video'); |
| 54 | |
| 55 | let param = sender.getParameters(); |
| 56 | let encoding = param.encodings[0]; |
| 57 | |
| 58 | assert_equals(encoding.codec, undefined); |
| 59 | }, `Codec should be undefined by default on video encodings`); |
| 60 | |
| 61 | promise_test(async t => { |
| 62 | const pc = new RTCPeerConnection(); |
| 63 | t.add_cleanup(() => pc.close()); |
| 64 | |
| 65 | const opus = findFirstCodec('audio/opus'); |
| 66 | |
| 67 | const { sender } = pc.addTransceiver('audio', { |
| 68 | sendEncodings: [{codec: opus}], |
| 69 | }); |
| 70 | |
| 71 | let param = sender.getParameters(); |
| 72 | let encoding = param.encodings[0]; |
| 73 | |
| 74 | assertCodecEquals(opus, encoding.codec); |
| 75 | }, `Creating an audio sender with addTransceiver and codec should work`); |
| 76 | |
| 77 | promise_test(async t => { |
| 78 | const pc = new RTCPeerConnection(); |
| 79 | t.add_cleanup(() => pc.close()); |
| 80 | |
| 81 | const vp8 = findFirstCodec('video/VP8'); |
| 82 | |
| 83 | const { sender } = pc.addTransceiver('video', { |
| 84 | sendEncodings: [{codec: vp8}], |
| 85 | }); |
| 86 | |
| 87 | let param = sender.getParameters(); |
| 88 | let encoding = param.encodings[0]; |
| 89 | |
| 90 | assertCodecEquals(vp8, encoding.codec); |
| 91 | }, `Creating a video sender with addTransceiver and codec should work`); |
| 92 | |
| 93 | promise_test(async t => { |
| 94 | const pc = new RTCPeerConnection(); |
| 95 | t.add_cleanup(() => pc.close()); |
| 96 | |
| 97 | const opus = findFirstCodec('audio/opus'); |
| 98 | |
| 99 | const { sender } = pc.addTransceiver('audio'); |
| 100 | |
| 101 | let param = sender.getParameters(); |
| 102 | let encoding = param.encodings[0]; |
| 103 | |
| 104 | encoding.codec = opus; |
| 105 | await sender.setParameters(param); |
| 106 | param = sender.getParameters(); |
| 107 | encoding = param.encodings[0]; |
| 108 | |
| 109 | assertCodecEquals(opus, encoding.codec); |
| 110 | |
| 111 | delete encoding.codec; |
| 112 | await sender.setParameters(param); |
| 113 | param = sender.getParameters(); |
| 114 | encoding = param.encodings[0]; |
| 115 | |
| 116 | assert_equals(encoding.codec, undefined); |
| 117 | }, `Setting codec on an audio sender with setParameters should work`); |
| 118 | |
| 119 | promise_test(async t => { |
| 120 | const pc = new RTCPeerConnection(); |
| 121 | t.add_cleanup(() => pc.close()); |
| 122 | |
| 123 | const vp8 = findFirstCodec('video/VP8'); |
| 124 | |
| 125 | const { sender } = pc.addTransceiver('video'); |
| 126 | |
| 127 | let param = sender.getParameters(); |
| 128 | let encoding = param.encodings[0]; |
| 129 | |
| 130 | encoding.codec = vp8; |
| 131 | await sender.setParameters(param); |
| 132 | param = sender.getParameters(); |
| 133 | encoding = param.encodings[0]; |
| 134 | |
| 135 | assertCodecEquals(vp8, encoding.codec); |
| 136 | |
| 137 | delete encoding.codec; |
| 138 | await sender.setParameters(param); |
| 139 | param = sender.getParameters(); |
| 140 | encoding = param.encodings[0]; |
| 141 | |
| 142 | assert_equals(encoding.codec, undefined); |
| 143 | }, `Setting codec on a video sender with setParameters should work`); |
| 144 | |
| 145 | promise_test(async t => { |
| 146 | const pc = new RTCPeerConnection(); |
| 147 | t.add_cleanup(() => pc.close()); |
| 148 | |
| 149 | const newCodec = { |
| 150 | mimeType: "audio/newCodec", |
| 151 | clockRate: 90000, |
| 152 | channel: 2, |
| 153 | }; |
| 154 | |
| 155 | assert_throws_dom('OperationError', () => pc.addTransceiver('video', { |
| 156 | sendEncodings: [{codec: newCodec}], |
| 157 | })); |
| 158 | }, `Creating an audio sender with addTransceiver and non-existing codec should throw OperationError`); |
| 159 | |
| 160 | promise_test(async t => { |
| 161 | const pc = new RTCPeerConnection(); |
| 162 | t.add_cleanup(() => pc.close()); |
| 163 | |
| 164 | const newCodec = { |
| 165 | mimeType: "video/newCodec", |
| 166 | clockRate: 90000, |
| 167 | }; |
| 168 | |
| 169 | assert_throws_dom('OperationError', () => pc.addTransceiver('video', { |
| 170 | sendEncodings: [{codec: newCodec}], |
| 171 | })); |
| 172 | }, `Creating a video sender with addTransceiver and non-existing codec should throw OperationError`); |
| 173 | |
| 174 | promise_test(async t => { |
| 175 | const pc = new RTCPeerConnection(); |
| 176 | t.add_cleanup(() => pc.close()); |
| 177 | |
| 178 | const newCodec = { |
| 179 | mimeType: "audio/newCodec", |
| 180 | clockRate: 90000, |
| 181 | channel: 2, |
| 182 | }; |
| 183 | |
| 184 | const { sender } = pc.addTransceiver('audio'); |
| 185 | |
| 186 | let param = sender.getParameters(); |
| 187 | let encoding = param.encodings[0]; |
| 188 | |
| 189 | encoding.codec = newCodec; |
| 190 | await promise_rejects_dom(t, "InvalidModificationError", sender.setParameters(param)); |
| 191 | }, `Setting a non-existing codec on an audio sender with setParameters should throw InvalidModificationError`); |
| 192 | |
| 193 | promise_test(async t => { |
| 194 | const pc = new RTCPeerConnection(); |
| 195 | t.add_cleanup(() => pc.close()); |
| 196 | |
| 197 | const newCodec = { |
| 198 | mimeType: "video/newCodec", |
| 199 | clockRate: 90000, |
| 200 | }; |
| 201 | |
| 202 | const { sender } = pc.addTransceiver('video'); |
| 203 | |
| 204 | let param = sender.getParameters(); |
| 205 | let encoding = param.encodings[0]; |
| 206 | |
| 207 | encoding.codec = newCodec; |
| 208 | await promise_rejects_dom(t, "InvalidModificationError", sender.setParameters(param)); |
| 209 | }, `Setting a non-existing codec on a video sender with setParameters should throw InvalidModificationError`); |
| 210 | |
| 211 | promise_test(async t => { |
| 212 | const pc = new RTCPeerConnection(); |
| 213 | t.add_cleanup(() => pc.close()); |
| 214 | |
| 215 | const opus = findFirstCodec('audio/opus'); |
| 216 | const nonOpus = codecsNotMatching(opus.mimeType); |
| 217 | |
| 218 | const transceiver = pc.addTransceiver('audio'); |
| 219 | const sender = transceiver.sender; |
| 220 | |
| 221 | transceiver.setCodecPreferences(nonOpus); |
| 222 | |
| 223 | let param = sender.getParameters(); |
| 224 | let encoding = param.encodings[0]; |
| 225 | |
| 226 | encoding.codec = opus; |
| 227 | await promise_rejects_dom(t, "InvalidModificationError", sender.setParameters(param)); |
| 228 | }, `Setting a non-preferred codec on an audio sender with setParameters should throw InvalidModificationError`); |
| 229 | |
| 230 | promise_test(async t => { |
| 231 | const pc = new RTCPeerConnection(); |
| 232 | t.add_cleanup(() => pc.close()); |
| 233 | |
| 234 | const vp8 = findFirstCodec('video/VP8'); |
| 235 | const nonVP8 = codecsNotMatching(vp8.mimeType); |
| 236 | |
| 237 | const transceiver = pc.addTransceiver('video'); |
| 238 | const sender = transceiver.sender; |
| 239 | |
| 240 | transceiver.setCodecPreferences(nonVP8); |
| 241 | |
| 242 | let param = sender.getParameters(); |
| 243 | let encoding = param.encodings[0]; |
| 244 | |
| 245 | encoding.codec = vp8; |
| 246 | await promise_rejects_dom(t, "InvalidModificationError", sender.setParameters(param)); |
| 247 | }, `Setting a non-preferred codec on a video sender with setParameters should throw InvalidModificationError`); |
| 248 | |
| 249 | promise_test(async (t) => { |
| 250 | const pc1 = new RTCPeerConnection(); |
| 251 | const pc2 = new RTCPeerConnection(); |
| 252 | t.add_cleanup(() => pc1.close()); |
| 253 | t.add_cleanup(() => pc2.close()); |
| 254 | |
| 255 | const opus = findFirstCodec('audio/opus'); |
| 256 | const nonOpus = codecsNotMatching(opus.mimeType); |
| 257 | |
| 258 | const transceiver = pc1.addTransceiver('audio'); |
| 259 | const sender = transceiver.sender; |
| 260 | |
| 261 | transceiver.setCodecPreferences(nonOpus); |
| 262 | |
| 263 | exchangeIceCandidates(pc1, pc2); |
| 264 | await exchangeOfferAnswer(pc1, pc2); |
| 265 | |
| 266 | let param = sender.getParameters(); |
| 267 | let encoding = param.encodings[0]; |
| 268 | |
| 269 | encoding.codec = opus; |
| 270 | await promise_rejects_dom(t, "InvalidModificationError", sender.setParameters(param)); |
| 271 | }, `Setting a non-negotiated codec on an audio sender with setParameters should throw InvalidModificationError`); |
| 272 | |
| 273 | promise_test(async (t) => { |
| 274 | const pc1 = new RTCPeerConnection(); |
| 275 | const pc2 = new RTCPeerConnection(); |
| 276 | t.add_cleanup(() => pc1.close()); |
| 277 | t.add_cleanup(() => pc2.close()); |
| 278 | |
| 279 | const vp8 = findFirstCodec('video/VP8'); |
| 280 | const nonVP8 = codecsNotMatching(vp8.mimeType); |
| 281 | |
| 282 | const transceiver = pc1.addTransceiver('video'); |
| 283 | const sender = transceiver.sender; |
| 284 | |
| 285 | transceiver.setCodecPreferences(nonVP8); |
| 286 | |
| 287 | exchangeIceCandidates(pc1, pc2); |
| 288 | await exchangeOfferAnswer(pc1, pc2); |
| 289 | |
| 290 | let param = sender.getParameters(); |
| 291 | let encoding = param.encodings[0]; |
| 292 | |
| 293 | encoding.codec = vp8; |
| 294 | await promise_rejects_dom(t, "InvalidModificationError", sender.setParameters(param)); |
| 295 | }, `Setting a non-negotiated codec on a video sender with setParameters should throw InvalidModificationError`); |
| 296 | |
| 297 | promise_test(async (t) => { |
| 298 | const pc1 = new RTCPeerConnection(); |
| 299 | const pc2 = new RTCPeerConnection(); |
| 300 | t.add_cleanup(() => pc1.close()); |
| 301 | t.add_cleanup(() => pc2.close()); |
| 302 | |
| 303 | const opus = findFirstCodec('audio/opus'); |
| 304 | const nonOpus = codecsNotMatching(opus.mimeType); |
| 305 | |
| 306 | const transceiver = pc1.addTransceiver('audio', { |
| 307 | sendEncodings: [{codec: opus}], |
| 308 | }); |
| 309 | const sender = transceiver.sender; |
| 310 | |
| 311 | exchangeIceCandidates(pc1, pc2); |
| 312 | await exchangeOfferAnswer(pc1, pc2); |
| 313 | |
| 314 | let param = sender.getParameters(); |
| 315 | let encoding = param.encodings[0]; |
| 316 | |
| 317 | assertCodecEquals(opus, encoding.codec); |
| 318 | |
| 319 | transceiver.setCodecPreferences(nonOpus); |
| 320 | await exchangeOfferAnswer(pc1, pc2); |
| 321 | |
| 322 | param = sender.getParameters(); |
| 323 | encoding = param.encodings[0]; |
| 324 | |
| 325 | assert_equals(encoding.codec, undefined); |
| 326 | }, `Codec should be undefined after negotiating away the currently set codec on an audio sender`); |
| 327 | |
| 328 | promise_test(async (t) => { |
| 329 | const pc1 = new RTCPeerConnection(); |
| 330 | const pc2 = new RTCPeerConnection(); |
| 331 | t.add_cleanup(() => pc1.close()); |
| 332 | t.add_cleanup(() => pc2.close()); |
| 333 | |
| 334 | const vp8 = findFirstCodec('video/VP8'); |
| 335 | const nonVP8 = codecsNotMatching(vp8.mimeType); |
| 336 | |
| 337 | const transceiver = pc1.addTransceiver('video', { |
| 338 | sendEncodings: [{codec: vp8}], |
| 339 | }); |
| 340 | const sender = transceiver.sender; |
| 341 | |
| 342 | exchangeIceCandidates(pc1, pc2); |
| 343 | await exchangeOfferAnswer(pc1, pc2); |
| 344 | |
| 345 | let param = sender.getParameters(); |
| 346 | let encoding = param.encodings[0]; |
| 347 | |
| 348 | assertCodecEquals(vp8, encoding.codec); |
| 349 | |
| 350 | transceiver.setCodecPreferences(nonVP8); |
| 351 | await exchangeOfferAnswer(pc1, pc2); |
| 352 | |
| 353 | param = sender.getParameters(); |
| 354 | encoding = param.encodings[0]; |
| 355 | |
| 356 | assert_equals(encoding.codec, undefined); |
| 357 | }, `Codec should be undefined after negotiating away the currently set codec on a video sender`); |
| 358 | |
| 359 | promise_test(async (t) => { |
| 360 | const pc1 = new RTCPeerConnection(); |
| 361 | const pc2 = new RTCPeerConnection(); |
| 362 | t.add_cleanup(() => pc1.close()); |
| 363 | t.add_cleanup(() => pc2.close()); |
| 364 | const stream = await getNoiseStream({audio:true}); |
| 365 | t.add_cleanup(() => stream.getTracks().forEach(track => track.stop())); |
| 366 | |
| 367 | const opus = findFirstCodec('audio/opus'); |
| 368 | const nonOpus = codecsNotMatching(opus.mimeType); |
| 369 | |
| 370 | const transceiver = pc1.addTransceiver(stream.getTracks()[0]); |
| 371 | const sender = transceiver.sender; |
| 372 | |
| 373 | transceiver.setCodecPreferences(nonOpus.concat([opus])); |
| 374 | |
| 375 | exchangeIceCandidates(pc1, pc2); |
| 376 | await exchangeOfferAnswer(pc1, pc2); |
| 377 | |
| 378 | let codecs = await codecsForSender(sender); |
| 379 | assert_not_equals(codecs[0], opus.mimeType); |
| 380 | |
| 381 | let param = sender.getParameters(); |
| 382 | let encoding = param.encodings[0]; |
| 383 | encoding.codec = opus; |
| 384 | |
| 385 | await sender.setParameters(param); |
| 386 | |
| 387 | codecs = await codecsForSender(sender); |
| 388 | assert_array_equals(codecs, [opus.mimeType]); |
| 389 | }, `Stats output-rtp should match the selected codec in non-simulcast usecase on an audio sender`); |
| 390 | |
| 391 | promise_test(async (t) => { |
| 392 | const pc1 = new RTCPeerConnection(); |
| 393 | const pc2 = new RTCPeerConnection(); |
| 394 | t.add_cleanup(() => pc1.close()); |
| 395 | t.add_cleanup(() => pc2.close()); |
| 396 | const stream = await getNoiseStream({video:true}); |
| 397 | t.add_cleanup(() => stream.getTracks().forEach(track => track.stop())); |
| 398 | |
| 399 | const vp8 = findFirstCodec('video/VP8'); |
| 400 | const nonVP8 = codecsNotMatching(vp8.mimeType); |
| 401 | |
| 402 | const transceiver = pc1.addTransceiver(stream.getTracks()[0]); |
| 403 | const sender = transceiver.sender; |
| 404 | |
| 405 | transceiver.setCodecPreferences(nonVP8.concat([vp8])); |
| 406 | |
| 407 | exchangeIceCandidates(pc1, pc2); |
| 408 | await exchangeOfferAnswer(pc1, pc2); |
| 409 | |
| 410 | let codecs = await codecsForSender(sender); |
| 411 | assert_not_equals(codecs[0], vp8.mimeType); |
| 412 | |
| 413 | let param = sender.getParameters(); |
| 414 | let encoding = param.encodings[0]; |
| 415 | encoding.codec = vp8; |
| 416 | |
| 417 | await sender.setParameters(param); |
| 418 | |
| 419 | codecs = await codecsForSender(sender); |
| 420 | assert_array_equals(codecs, [vp8.mimeType]); |
| 421 | }, `Stats output-rtp should match the selected codec in non-simulcast usecase on a video sender`); |
| 422 | </script> |
