1 /*
2 * Copyright 2011 The WebRTC project authors. All Rights Reserved.
3 *
4 * Use of this source code is governed by a BSD-style license
5 * that can be found in the LICENSE file in the root of the source
6 * tree. An additional intellectual property rights grant can be found
7 * in the file PATENTS. All contributing project authors may
8 * be found in the AUTHORS file in the root of the source tree.
9 */
10
11 #include <stdio.h>
12 #include <string.h>
13
14 #include <algorithm>
15 #include <cstdint>
16 #include <map>
17 #include <memory>
18 #include <string>
19 #include <utility>
20 #include <vector>
21
22 #include "absl/algorithm/container.h"
23 #include "absl/memory/memory.h"
24 #include "absl/strings/str_replace.h"
25 #include "api/array_view.h"
26 #include "api/crypto_params.h"
27 #include "api/jsep_session_description.h"
28 #include "api/media_types.h"
29 #include "api/rtp_parameters.h"
30 #include "api/rtp_transceiver_interface.h"
31 #include "media/base/codec.h"
32 #include "media/base/media_constants.h"
33 #include "media/base/stream_params.h"
34 #include "p2p/base/p2p_constants.h"
35 #include "p2p/base/port.h"
36 #include "p2p/base/transport_description.h"
37 #include "p2p/base/transport_info.h"
38 #include "pc/media_session.h"
39 #include "pc/session_description.h"
40 #include "rtc_base/checks.h"
41 #include "rtc_base/message_digest.h"
42 #include "rtc_base/socket_address.h"
43 #include "rtc_base/ssl_fingerprint.h"
44 #include "rtc_base/string_encode.h"
45 #include "test/gmock.h"
46 #include "test/gtest.h"
47
48 #ifdef WEBRTC_ANDROID
49 #include "pc/test/android_test_initializer.h"
50 #endif
51 #include "pc/webrtc_sdp.h"
52
53 using cricket::AudioCodec;
54 using cricket::AudioContentDescription;
55 using cricket::Candidate;
56 using cricket::ContentGroup;
57 using cricket::ContentInfo;
58 using cricket::CryptoParams;
59 using cricket::DataCodec;
60 using cricket::ICE_CANDIDATE_COMPONENT_RTCP;
61 using cricket::ICE_CANDIDATE_COMPONENT_RTP;
62 using cricket::kFecSsrcGroupSemantics;
63 using cricket::LOCAL_PORT_TYPE;
64 using cricket::MediaProtocolType;
65 using cricket::RELAY_PORT_TYPE;
66 using cricket::RidDescription;
67 using cricket::RidDirection;
68 using cricket::RtpDataContentDescription;
69 using cricket::SctpDataContentDescription;
70 using cricket::SessionDescription;
71 using cricket::SimulcastDescription;
72 using cricket::SimulcastLayer;
73 using cricket::StreamParams;
74 using cricket::STUN_PORT_TYPE;
75 using cricket::TransportDescription;
76 using cricket::TransportInfo;
77 using cricket::VideoCodec;
78 using cricket::VideoContentDescription;
79 using ::testing::ElementsAre;
80 using ::testing::Field;
81 using webrtc::IceCandidateCollection;
82 using webrtc::IceCandidateInterface;
83 using webrtc::JsepIceCandidate;
84 using webrtc::JsepSessionDescription;
85 using webrtc::RtpExtension;
86 using webrtc::RtpTransceiverDirection;
87 using webrtc::SdpParseError;
88 using webrtc::SdpType;
89 using webrtc::SessionDescriptionInterface;
90
91 typedef std::vector<AudioCodec> AudioCodecs;
92 typedef std::vector<Candidate> Candidates;
93
94 static const uint32_t kDefaultSctpPort = 5000;
95 static const uint16_t kUnusualSctpPort = 9556;
96 static const char kSessionTime[] = "t=0 0\r\n";
97 static const uint32_t kCandidatePriority = 2130706432U; // pref = 1.0
98 static const char kAttributeIceUfragVoice[] = "a=ice-ufrag:ufrag_voice\r\n";
99 static const char kAttributeIcePwdVoice[] = "a=ice-pwd:pwd_voice\r\n";
100 static const char kAttributeIceUfragVideo[] = "a=ice-ufrag:ufrag_video\r\n";
101 static const char kAttributeIcePwdVideo[] = "a=ice-pwd:pwd_video\r\n";
102 static const uint32_t kCandidateGeneration = 2;
103 static const char kCandidateFoundation1[] = "a0+B/1";
104 static const char kCandidateFoundation2[] = "a0+B/2";
105 static const char kCandidateFoundation3[] = "a0+B/3";
106 static const char kCandidateFoundation4[] = "a0+B/4";
107 static const char kAttributeCryptoVoice[] =
108 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
109 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
110 "dummy_session_params\r\n";
111 static const char kAttributeCryptoVideo[] =
112 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
113 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n";
114 static const char kFingerprint[] =
115 "a=fingerprint:sha-1 "
116 "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n";
117 static const char kExtmapAllowMixed[] = "a=extmap-allow-mixed\r\n";
118 static const int kExtmapId = 1;
119 static const char kExtmapUri[] = "http://example.com/082005/ext.htm#ttime";
120 static const char kExtmap[] =
121 "a=extmap:1 http://example.com/082005/ext.htm#ttime\r\n";
122 static const char kExtmapWithDirectionAndAttribute[] =
123 "a=extmap:1/sendrecv http://example.com/082005/ext.htm#ttime a1 a2\r\n";
124 static const char kExtmapWithDirectionAndAttributeEncrypted[] =
125 "a=extmap:1/sendrecv urn:ietf:params:rtp-hdrext:encrypt "
126 "http://example.com/082005/ext.htm#ttime a1 a2\r\n";
127
128 static const uint8_t kIdentityDigest[] = {
129 0x4A, 0xAD, 0xB9, 0xB1, 0x3F, 0x82, 0x18, 0x3B, 0x54, 0x02,
130 0x12, 0xDF, 0x3E, 0x5D, 0x49, 0x6B, 0x19, 0xE5, 0x7C, 0xAB};
131
132 static const char kDtlsSctp[] = "DTLS/SCTP";
133 static const char kUdpDtlsSctp[] = "UDP/DTLS/SCTP";
134 static const char kTcpDtlsSctp[] = "TCP/DTLS/SCTP";
135
136 struct CodecParams {
137 int max_ptime;
138 int ptime;
139 int min_ptime;
140 int sprop_stereo;
141 int stereo;
142 int useinband;
143 int maxaveragebitrate;
144 };
145
146 // TODO(deadbeef): In these reference strings, use "a=fingerprint" by default
147 // instead of "a=crypto", and have an explicit test for adding "a=crypto".
148 // Currently it's the other way around.
149
150 // Reference sdp string
151 static const char kSdpFullString[] =
152 "v=0\r\n"
153 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
154 "s=-\r\n"
155 "t=0 0\r\n"
156 "a=msid-semantic: WMS local_stream_1\r\n"
157 "m=audio 2345 RTP/SAVPF 111 103 104\r\n"
158 "c=IN IP4 74.125.127.126\r\n"
159 "a=rtcp:2347 IN IP4 74.125.127.126\r\n"
160 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host "
161 "generation 2\r\n"
162 "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host "
163 "generation 2\r\n"
164 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host "
165 "generation 2\r\n"
166 "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host "
167 "generation 2\r\n"
168 "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx "
169 "raddr 192.168.1.5 rport 2346 "
170 "generation 2\r\n"
171 "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx "
172 "raddr 192.168.1.5 rport 2348 "
173 "generation 2\r\n"
174 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
175 "a=mid:audio_content_name\r\n"
176 "a=sendrecv\r\n"
177 "a=rtcp-mux\r\n"
178 "a=rtcp-rsize\r\n"
179 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
180 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
181 "dummy_session_params\r\n"
182 "a=rtpmap:111 opus/48000/2\r\n"
183 "a=rtpmap:103 ISAC/16000\r\n"
184 "a=rtpmap:104 ISAC/32000\r\n"
185 "a=ssrc:1 cname:stream_1_cname\r\n"
186 "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n"
187 "a=ssrc:1 mslabel:local_stream_1\r\n"
188 "a=ssrc:1 label:audio_track_id_1\r\n"
189 "m=video 3457 RTP/SAVPF 120\r\n"
190 "c=IN IP4 74.125.224.39\r\n"
191 "a=rtcp:3456 IN IP4 74.125.224.39\r\n"
192 "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host "
193 "generation 2\r\n"
194 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host "
195 "generation 2\r\n"
196 "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host "
197 "generation 2\r\n"
198 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host "
199 "generation 2\r\n"
200 "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay "
201 "generation 2\r\n"
202 "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay "
203 "generation 2\r\n"
204 "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n"
205 "a=mid:video_content_name\r\n"
206 "a=sendrecv\r\n"
207 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
208 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"
209 "a=rtpmap:120 VP8/90000\r\n"
210 "a=ssrc-group:FEC 2 3\r\n"
211 "a=ssrc:2 cname:stream_1_cname\r\n"
212 "a=ssrc:2 msid:local_stream_1 video_track_id_1\r\n"
213 "a=ssrc:2 mslabel:local_stream_1\r\n"
214 "a=ssrc:2 label:video_track_id_1\r\n"
215 "a=ssrc:3 cname:stream_1_cname\r\n"
216 "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n"
217 "a=ssrc:3 mslabel:local_stream_1\r\n"
218 "a=ssrc:3 label:video_track_id_1\r\n";
219
220 // SDP reference string without the candidates.
221 static const char kSdpString[] =
222 "v=0\r\n"
223 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
224 "s=-\r\n"
225 "t=0 0\r\n"
226 "a=msid-semantic: WMS local_stream_1\r\n"
227 "m=audio 9 RTP/SAVPF 111 103 104\r\n"
228 "c=IN IP4 0.0.0.0\r\n"
229 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
230 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
231 "a=mid:audio_content_name\r\n"
232 "a=sendrecv\r\n"
233 "a=rtcp-mux\r\n"
234 "a=rtcp-rsize\r\n"
235 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
236 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
237 "dummy_session_params\r\n"
238 "a=rtpmap:111 opus/48000/2\r\n"
239 "a=rtpmap:103 ISAC/16000\r\n"
240 "a=rtpmap:104 ISAC/32000\r\n"
241 "a=ssrc:1 cname:stream_1_cname\r\n"
242 "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n"
243 "a=ssrc:1 mslabel:local_stream_1\r\n"
244 "a=ssrc:1 label:audio_track_id_1\r\n"
245 "m=video 9 RTP/SAVPF 120\r\n"
246 "c=IN IP4 0.0.0.0\r\n"
247 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
248 "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n"
249 "a=mid:video_content_name\r\n"
250 "a=sendrecv\r\n"
251 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
252 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"
253 "a=rtpmap:120 VP8/90000\r\n"
254 "a=ssrc-group:FEC 2 3\r\n"
255 "a=ssrc:2 cname:stream_1_cname\r\n"
256 "a=ssrc:2 msid:local_stream_1 video_track_id_1\r\n"
257 "a=ssrc:2 mslabel:local_stream_1\r\n"
258 "a=ssrc:2 label:video_track_id_1\r\n"
259 "a=ssrc:3 cname:stream_1_cname\r\n"
260 "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n"
261 "a=ssrc:3 mslabel:local_stream_1\r\n"
262 "a=ssrc:3 label:video_track_id_1\r\n";
263
264 static const char kSdpRtpDataChannelString[] =
265 "m=application 9 RTP/SAVPF 101\r\n"
266 "c=IN IP4 0.0.0.0\r\n"
267 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
268 "a=ice-ufrag:ufrag_data\r\n"
269 "a=ice-pwd:pwd_data\r\n"
270 "a=mid:data_content_name\r\n"
271 "a=sendrecv\r\n"
272 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
273 "inline:FvLcvU2P3ZWmQxgPAgcDu7Zl9vftYElFOjEzhWs5\r\n"
274 "a=rtpmap:101 google-data/90000\r\n"
275 "a=ssrc:10 cname:data_channel_cname\r\n"
276 "a=ssrc:10 msid:data_channel data_channeld0\r\n"
277 "a=ssrc:10 mslabel:data_channel\r\n"
278 "a=ssrc:10 label:data_channeld0\r\n";
279
280 // draft-ietf-mmusic-sctp-sdp-03
281 static const char kSdpSctpDataChannelString[] =
282 "m=application 9 UDP/DTLS/SCTP 5000\r\n"
283 "c=IN IP4 0.0.0.0\r\n"
284 "a=ice-ufrag:ufrag_data\r\n"
285 "a=ice-pwd:pwd_data\r\n"
286 "a=mid:data_content_name\r\n"
287 "a=sctpmap:5000 webrtc-datachannel 1024\r\n";
288
289 // draft-ietf-mmusic-sctp-sdp-12
290 // Note - this is invalid per draft-ietf-mmusic-sctp-sdp-26,
291 // since the separator after "sctp-port" needs to be a colon.
292 static const char kSdpSctpDataChannelStringWithSctpPort[] =
293 "m=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\n"
294 "a=sctp-port 5000\r\n"
295 "c=IN IP4 0.0.0.0\r\n"
296 "a=ice-ufrag:ufrag_data\r\n"
297 "a=ice-pwd:pwd_data\r\n"
298 "a=mid:data_content_name\r\n";
299
300 // draft-ietf-mmusic-sctp-sdp-26
301 static const char kSdpSctpDataChannelStringWithSctpColonPort[] =
302 "m=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\n"
303 "a=sctp-port:5000\r\n"
304 "c=IN IP4 0.0.0.0\r\n"
305 "a=ice-ufrag:ufrag_data\r\n"
306 "a=ice-pwd:pwd_data\r\n"
307 "a=mid:data_content_name\r\n";
308
309 static const char kSdpSctpDataChannelWithCandidatesString[] =
310 "m=application 2345 UDP/DTLS/SCTP 5000\r\n"
311 "c=IN IP4 74.125.127.126\r\n"
312 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host "
313 "generation 2\r\n"
314 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host "
315 "generation 2\r\n"
316 "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx "
317 "raddr 192.168.1.5 rport 2346 "
318 "generation 2\r\n"
319 "a=ice-ufrag:ufrag_data\r\n"
320 "a=ice-pwd:pwd_data\r\n"
321 "a=mid:data_content_name\r\n"
322 "a=sctpmap:5000 webrtc-datachannel 1024\r\n";
323
324 static const char kSdpConferenceString[] =
325 "v=0\r\n"
326 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
327 "s=-\r\n"
328 "t=0 0\r\n"
329 "a=msid-semantic: WMS\r\n"
330 "m=audio 9 RTP/SAVPF 111 103 104\r\n"
331 "c=IN IP4 0.0.0.0\r\n"
332 "a=x-google-flag:conference\r\n"
333 "m=video 9 RTP/SAVPF 120\r\n"
334 "c=IN IP4 0.0.0.0\r\n"
335 "a=x-google-flag:conference\r\n";
336
337 static const char kSdpSessionString[] =
338 "v=0\r\n"
339 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
340 "s=-\r\n"
341 "t=0 0\r\n"
342 "a=msid-semantic: WMS local_stream\r\n";
343
344 static const char kSdpAudioString[] =
345 "m=audio 9 RTP/SAVPF 111\r\n"
346 "c=IN IP4 0.0.0.0\r\n"
347 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
348 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
349 "a=mid:audio_content_name\r\n"
350 "a=sendrecv\r\n"
351 "a=rtpmap:111 opus/48000/2\r\n"
352 "a=ssrc:1 cname:stream_1_cname\r\n"
353 "a=ssrc:1 msid:local_stream audio_track_id_1\r\n"
354 "a=ssrc:1 mslabel:local_stream\r\n"
355 "a=ssrc:1 label:audio_track_id_1\r\n";
356
357 static const char kSdpVideoString[] =
358 "m=video 9 RTP/SAVPF 120\r\n"
359 "c=IN IP4 0.0.0.0\r\n"
360 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
361 "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n"
362 "a=mid:video_content_name\r\n"
363 "a=sendrecv\r\n"
364 "a=rtpmap:120 VP8/90000\r\n"
365 "a=ssrc:2 cname:stream_1_cname\r\n"
366 "a=ssrc:2 msid:local_stream video_track_id_1\r\n"
367 "a=ssrc:2 mslabel:local_stream\r\n"
368 "a=ssrc:2 label:video_track_id_1\r\n";
369
370 // Reference sdp string using bundle-only.
371 static const char kBundleOnlySdpFullString[] =
372 "v=0\r\n"
373 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
374 "s=-\r\n"
375 "t=0 0\r\n"
376 "a=group:BUNDLE audio_content_name video_content_name\r\n"
377 "a=msid-semantic: WMS local_stream_1\r\n"
378 "m=audio 2345 RTP/SAVPF 111 103 104\r\n"
379 "c=IN IP4 74.125.127.126\r\n"
380 "a=rtcp:2347 IN IP4 74.125.127.126\r\n"
381 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host "
382 "generation 2\r\n"
383 "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host "
384 "generation 2\r\n"
385 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host "
386 "generation 2\r\n"
387 "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host "
388 "generation 2\r\n"
389 "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx "
390 "raddr 192.168.1.5 rport 2346 "
391 "generation 2\r\n"
392 "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx "
393 "raddr 192.168.1.5 rport 2348 "
394 "generation 2\r\n"
395 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
396 "a=mid:audio_content_name\r\n"
397 "a=sendrecv\r\n"
398 "a=rtcp-mux\r\n"
399 "a=rtcp-rsize\r\n"
400 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
401 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
402 "dummy_session_params\r\n"
403 "a=rtpmap:111 opus/48000/2\r\n"
404 "a=rtpmap:103 ISAC/16000\r\n"
405 "a=rtpmap:104 ISAC/32000\r\n"
406 "a=ssrc:1 cname:stream_1_cname\r\n"
407 "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n"
408 "a=ssrc:1 mslabel:local_stream_1\r\n"
409 "a=ssrc:1 label:audio_track_id_1\r\n"
410 "m=video 0 RTP/SAVPF 120\r\n"
411 "c=IN IP4 0.0.0.0\r\n"
412 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
413 "a=bundle-only\r\n"
414 "a=mid:video_content_name\r\n"
415 "a=sendrecv\r\n"
416 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
417 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"
418 "a=rtpmap:120 VP8/90000\r\n"
419 "a=ssrc-group:FEC 2 3\r\n"
420 "a=ssrc:2 cname:stream_1_cname\r\n"
421 "a=ssrc:2 msid:local_stream_1 video_track_id_1\r\n"
422 "a=ssrc:2 mslabel:local_stream_1\r\n"
423 "a=ssrc:2 label:video_track_id_1\r\n"
424 "a=ssrc:3 cname:stream_1_cname\r\n"
425 "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n"
426 "a=ssrc:3 mslabel:local_stream_1\r\n"
427 "a=ssrc:3 label:video_track_id_1\r\n";
428
429 // Plan B SDP reference string, with 2 streams, 2 audio tracks and 3 video
430 // tracks.
431 static const char kPlanBSdpFullString[] =
432 "v=0\r\n"
433 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
434 "s=-\r\n"
435 "t=0 0\r\n"
436 "a=msid-semantic: WMS local_stream_1 local_stream_2\r\n"
437 "m=audio 2345 RTP/SAVPF 111 103 104\r\n"
438 "c=IN IP4 74.125.127.126\r\n"
439 "a=rtcp:2347 IN IP4 74.125.127.126\r\n"
440 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host "
441 "generation 2\r\n"
442 "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host "
443 "generation 2\r\n"
444 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host "
445 "generation 2\r\n"
446 "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host "
447 "generation 2\r\n"
448 "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx "
449 "raddr 192.168.1.5 rport 2346 "
450 "generation 2\r\n"
451 "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx "
452 "raddr 192.168.1.5 rport 2348 "
453 "generation 2\r\n"
454 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
455 "a=mid:audio_content_name\r\n"
456 "a=sendrecv\r\n"
457 "a=rtcp-mux\r\n"
458 "a=rtcp-rsize\r\n"
459 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
460 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
461 "dummy_session_params\r\n"
462 "a=rtpmap:111 opus/48000/2\r\n"
463 "a=rtpmap:103 ISAC/16000\r\n"
464 "a=rtpmap:104 ISAC/32000\r\n"
465 "a=ssrc:1 cname:stream_1_cname\r\n"
466 "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n"
467 "a=ssrc:1 mslabel:local_stream_1\r\n"
468 "a=ssrc:1 label:audio_track_id_1\r\n"
469 "a=ssrc:4 cname:stream_2_cname\r\n"
470 "a=ssrc:4 msid:local_stream_2 audio_track_id_2\r\n"
471 "a=ssrc:4 mslabel:local_stream_2\r\n"
472 "a=ssrc:4 label:audio_track_id_2\r\n"
473 "m=video 3457 RTP/SAVPF 120\r\n"
474 "c=IN IP4 74.125.224.39\r\n"
475 "a=rtcp:3456 IN IP4 74.125.224.39\r\n"
476 "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host "
477 "generation 2\r\n"
478 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host "
479 "generation 2\r\n"
480 "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host "
481 "generation 2\r\n"
482 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host "
483 "generation 2\r\n"
484 "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay "
485 "generation 2\r\n"
486 "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay "
487 "generation 2\r\n"
488 "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n"
489 "a=mid:video_content_name\r\n"
490 "a=sendrecv\r\n"
491 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
492 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"
493 "a=rtpmap:120 VP8/90000\r\n"
494 "a=ssrc-group:FEC 2 3\r\n"
495 "a=ssrc:2 cname:stream_1_cname\r\n"
496 "a=ssrc:2 msid:local_stream_1 video_track_id_1\r\n"
497 "a=ssrc:2 mslabel:local_stream_1\r\n"
498 "a=ssrc:2 label:video_track_id_1\r\n"
499 "a=ssrc:3 cname:stream_1_cname\r\n"
500 "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n"
501 "a=ssrc:3 mslabel:local_stream_1\r\n"
502 "a=ssrc:3 label:video_track_id_1\r\n"
503 "a=ssrc:5 cname:stream_2_cname\r\n"
504 "a=ssrc:5 msid:local_stream_2 video_track_id_2\r\n"
505 "a=ssrc:5 mslabel:local_stream_2\r\n"
506 "a=ssrc:5 label:video_track_id_2\r\n"
507 "a=ssrc:6 cname:stream_2_cname\r\n"
508 "a=ssrc:6 msid:local_stream_2 video_track_id_3\r\n"
509 "a=ssrc:6 mslabel:local_stream_2\r\n"
510 "a=ssrc:6 label:video_track_id_3\r\n";
511
512 // Unified Plan SDP reference string, with 2 streams, 2 audio tracks and 3 video
513 // tracks.
514 static const char kUnifiedPlanSdpFullString[] =
515 "v=0\r\n"
516 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
517 "s=-\r\n"
518 "t=0 0\r\n"
519 "a=msid-semantic: WMS local_stream_1\r\n"
520 // Audio track 1, stream 1 (with candidates).
521 "m=audio 2345 RTP/SAVPF 111 103 104\r\n"
522 "c=IN IP4 74.125.127.126\r\n"
523 "a=rtcp:2347 IN IP4 74.125.127.126\r\n"
524 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host "
525 "generation 2\r\n"
526 "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host "
527 "generation 2\r\n"
528 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host "
529 "generation 2\r\n"
530 "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host "
531 "generation 2\r\n"
532 "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx "
533 "raddr 192.168.1.5 rport 2346 "
534 "generation 2\r\n"
535 "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx "
536 "raddr 192.168.1.5 rport 2348 "
537 "generation 2\r\n"
538 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
539 "a=mid:audio_content_name\r\n"
540 "a=msid:local_stream_1 audio_track_id_1\r\n"
541 "a=sendrecv\r\n"
542 "a=rtcp-mux\r\n"
543 "a=rtcp-rsize\r\n"
544 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
545 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
546 "dummy_session_params\r\n"
547 "a=rtpmap:111 opus/48000/2\r\n"
548 "a=rtpmap:103 ISAC/16000\r\n"
549 "a=rtpmap:104 ISAC/32000\r\n"
550 "a=ssrc:1 cname:stream_1_cname\r\n"
551 // Video track 1, stream 1 (with candidates).
552 "m=video 3457 RTP/SAVPF 120\r\n"
553 "c=IN IP4 74.125.224.39\r\n"
554 "a=rtcp:3456 IN IP4 74.125.224.39\r\n"
555 "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host "
556 "generation 2\r\n"
557 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host "
558 "generation 2\r\n"
559 "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host "
560 "generation 2\r\n"
561 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host "
562 "generation 2\r\n"
563 "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay "
564 "generation 2\r\n"
565 "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay "
566 "generation 2\r\n"
567 "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n"
568 "a=mid:video_content_name\r\n"
569 "a=msid:local_stream_1 video_track_id_1\r\n"
570 "a=sendrecv\r\n"
571 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
572 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"
573 "a=rtpmap:120 VP8/90000\r\n"
574 "a=ssrc-group:FEC 2 3\r\n"
575 "a=ssrc:2 cname:stream_1_cname\r\n"
576 "a=ssrc:3 cname:stream_1_cname\r\n"
577 // Audio track 2, stream 2.
578 "m=audio 9 RTP/SAVPF 111 103 104\r\n"
579 "c=IN IP4 0.0.0.0\r\n"
580 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
581 "a=ice-ufrag:ufrag_voice_2\r\na=ice-pwd:pwd_voice_2\r\n"
582 "a=mid:audio_content_name_2\r\n"
583 "a=msid:local_stream_2 audio_track_id_2\r\n"
584 "a=sendrecv\r\n"
585 "a=rtcp-mux\r\n"
586 "a=rtcp-rsize\r\n"
587 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
588 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
589 "dummy_session_params\r\n"
590 "a=rtpmap:111 opus/48000/2\r\n"
591 "a=rtpmap:103 ISAC/16000\r\n"
592 "a=rtpmap:104 ISAC/32000\r\n"
593 "a=ssrc:4 cname:stream_2_cname\r\n"
594 // Video track 2, stream 2.
595 "m=video 9 RTP/SAVPF 120\r\n"
596 "c=IN IP4 0.0.0.0\r\n"
597 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
598 "a=ice-ufrag:ufrag_video_2\r\na=ice-pwd:pwd_video_2\r\n"
599 "a=mid:video_content_name_2\r\n"
600 "a=msid:local_stream_2 video_track_id_2\r\n"
601 "a=sendrecv\r\n"
602 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
603 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"
604 "a=rtpmap:120 VP8/90000\r\n"
605 "a=ssrc:5 cname:stream_2_cname\r\n"
606 // Video track 3, stream 2.
607 "m=video 9 RTP/SAVPF 120\r\n"
608 "c=IN IP4 0.0.0.0\r\n"
609 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
610 "a=ice-ufrag:ufrag_video_3\r\na=ice-pwd:pwd_video_3\r\n"
611 "a=mid:video_content_name_3\r\n"
612 "a=msid:local_stream_2 video_track_id_3\r\n"
613 "a=sendrecv\r\n"
614 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
615 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"
616 "a=rtpmap:120 VP8/90000\r\n"
617 "a=ssrc:6 cname:stream_2_cname\r\n";
618
619 // Unified Plan SDP reference string:
620 // - audio track 1 has 1 a=msid lines
621 // - audio track 2 has 2 a=msid lines
622 // - audio track 3 has 1 a=msid line with the special "-" marker signifying that
623 // there are 0 media stream ids.
624 // This Unified Plan SDP represents a SDP that signals the msid using both
625 // a=msid and a=ssrc msid semantics.
626 static const char kUnifiedPlanSdpFullStringWithSpecialMsid[] =
627 "v=0\r\n"
628 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
629 "s=-\r\n"
630 "t=0 0\r\n"
631 "a=msid-semantic: WMS local_stream_1\r\n"
632 // Audio track 1, with 1 stream id.
633 "m=audio 2345 RTP/SAVPF 111 103 104\r\n"
634 "c=IN IP4 74.125.127.126\r\n"
635 "a=rtcp:2347 IN IP4 74.125.127.126\r\n"
636 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host "
637 "generation 2\r\n"
638 "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host "
639 "generation 2\r\n"
640 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host "
641 "generation 2\r\n"
642 "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host "
643 "generation 2\r\n"
644 "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx "
645 "raddr 192.168.1.5 rport 2346 "
646 "generation 2\r\n"
647 "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx "
648 "raddr 192.168.1.5 rport 2348 "
649 "generation 2\r\n"
650 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
651 "a=mid:audio_content_name\r\n"
652 "a=sendrecv\r\n"
653 "a=msid:local_stream_1 audio_track_id_1\r\n"
654 "a=rtcp-mux\r\n"
655 "a=rtcp-rsize\r\n"
656 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
657 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
658 "dummy_session_params\r\n"
659 "a=rtpmap:111 opus/48000/2\r\n"
660 "a=rtpmap:103 ISAC/16000\r\n"
661 "a=rtpmap:104 ISAC/32000\r\n"
662 "a=ssrc:1 cname:stream_1_cname\r\n"
663 "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n"
664 "a=ssrc:1 mslabel:local_stream_1\r\n"
665 "a=ssrc:1 label:audio_track_id_1\r\n"
666 // Audio track 2, with two stream ids.
667 "m=audio 9 RTP/SAVPF 111 103 104\r\n"
668 "c=IN IP4 0.0.0.0\r\n"
669 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
670 "a=ice-ufrag:ufrag_voice_2\r\na=ice-pwd:pwd_voice_2\r\n"
671 "a=mid:audio_content_name_2\r\n"
672 "a=sendrecv\r\n"
673 "a=msid:local_stream_1 audio_track_id_2\r\n"
674 "a=msid:local_stream_2 audio_track_id_2\r\n"
675 "a=rtcp-mux\r\n"
676 "a=rtcp-rsize\r\n"
677 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
678 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
679 "dummy_session_params\r\n"
680 "a=rtpmap:111 opus/48000/2\r\n"
681 "a=rtpmap:103 ISAC/16000\r\n"
682 "a=rtpmap:104 ISAC/32000\r\n"
683 "a=ssrc:4 cname:stream_1_cname\r\n"
684 // The support for Plan B msid signaling only includes the
685 // first media stream id "local_stream_1."
686 "a=ssrc:4 msid:local_stream_1 audio_track_id_2\r\n"
687 "a=ssrc:4 mslabel:local_stream_1\r\n"
688 "a=ssrc:4 label:audio_track_id_2\r\n"
689 // Audio track 3, with no stream ids.
690 "m=audio 9 RTP/SAVPF 111 103 104\r\n"
691 "c=IN IP4 0.0.0.0\r\n"
692 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
693 "a=ice-ufrag:ufrag_voice_3\r\na=ice-pwd:pwd_voice_3\r\n"
694 "a=mid:audio_content_name_3\r\n"
695 "a=sendrecv\r\n"
696 "a=msid:- audio_track_id_3\r\n"
697 "a=rtcp-mux\r\n"
698 "a=rtcp-rsize\r\n"
699 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
700 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
701 "dummy_session_params\r\n"
702 "a=rtpmap:111 opus/48000/2\r\n"
703 "a=rtpmap:103 ISAC/16000\r\n"
704 "a=rtpmap:104 ISAC/32000\r\n"
705 "a=ssrc:7 cname:stream_2_cname\r\n"
706 "a=ssrc:7 msid:- audio_track_id_3\r\n"
707 "a=ssrc:7 mslabel:-\r\n"
708 "a=ssrc:7 label:audio_track_id_3\r\n";
709
710 // SDP string for unified plan without SSRCs
711 static const char kUnifiedPlanSdpFullStringNoSsrc[] =
712 "v=0\r\n"
713 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
714 "s=-\r\n"
715 "t=0 0\r\n"
716 "a=msid-semantic: WMS local_stream_1\r\n"
717 // Audio track 1, stream 1 (with candidates).
718 "m=audio 2345 RTP/SAVPF 111 103 104\r\n"
719 "c=IN IP4 74.125.127.126\r\n"
720 "a=rtcp:2347 IN IP4 74.125.127.126\r\n"
721 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host "
722 "generation 2\r\n"
723 "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host "
724 "generation 2\r\n"
725 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host "
726 "generation 2\r\n"
727 "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host "
728 "generation 2\r\n"
729 "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx "
730 "raddr 192.168.1.5 rport 2346 "
731 "generation 2\r\n"
732 "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx "
733 "raddr 192.168.1.5 rport 2348 "
734 "generation 2\r\n"
735 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
736 "a=mid:audio_content_name\r\n"
737 "a=msid:local_stream_1 audio_track_id_1\r\n"
738 "a=sendrecv\r\n"
739 "a=rtcp-mux\r\n"
740 "a=rtcp-rsize\r\n"
741 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
742 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
743 "dummy_session_params\r\n"
744 "a=rtpmap:111 opus/48000/2\r\n"
745 "a=rtpmap:103 ISAC/16000\r\n"
746 "a=rtpmap:104 ISAC/32000\r\n"
747 // Video track 1, stream 1 (with candidates).
748 "m=video 3457 RTP/SAVPF 120\r\n"
749 "c=IN IP4 74.125.224.39\r\n"
750 "a=rtcp:3456 IN IP4 74.125.224.39\r\n"
751 "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host "
752 "generation 2\r\n"
753 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host "
754 "generation 2\r\n"
755 "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host "
756 "generation 2\r\n"
757 "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host "
758 "generation 2\r\n"
759 "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay "
760 "generation 2\r\n"
761 "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay "
762 "generation 2\r\n"
763 "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n"
764 "a=mid:video_content_name\r\n"
765 "a=msid:local_stream_1 video_track_id_1\r\n"
766 "a=sendrecv\r\n"
767 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
768 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"
769 "a=rtpmap:120 VP8/90000\r\n"
770 // Audio track 2, stream 2.
771 "m=audio 9 RTP/SAVPF 111 103 104\r\n"
772 "c=IN IP4 0.0.0.0\r\n"
773 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
774 "a=ice-ufrag:ufrag_voice_2\r\na=ice-pwd:pwd_voice_2\r\n"
775 "a=mid:audio_content_name_2\r\n"
776 "a=msid:local_stream_2 audio_track_id_2\r\n"
777 "a=sendrecv\r\n"
778 "a=rtcp-mux\r\n"
779 "a=rtcp-rsize\r\n"
780 "a=crypto:1 AES_CM_128_HMAC_SHA1_32 "
781 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32 "
782 "dummy_session_params\r\n"
783 "a=rtpmap:111 opus/48000/2\r\n"
784 "a=rtpmap:103 ISAC/16000\r\n"
785 "a=rtpmap:104 ISAC/32000\r\n"
786 // Video track 2, stream 2.
787 "m=video 9 RTP/SAVPF 120\r\n"
788 "c=IN IP4 0.0.0.0\r\n"
789 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
790 "a=ice-ufrag:ufrag_video_2\r\na=ice-pwd:pwd_video_2\r\n"
791 "a=mid:video_content_name_2\r\n"
792 "a=msid:local_stream_2 video_track_id_2\r\n"
793 "a=sendrecv\r\n"
794 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
795 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"
796 "a=rtpmap:120 VP8/90000\r\n"
797 // Video track 3, stream 2.
798 "m=video 9 RTP/SAVPF 120\r\n"
799 "c=IN IP4 0.0.0.0\r\n"
800 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
801 "a=ice-ufrag:ufrag_video_3\r\na=ice-pwd:pwd_video_3\r\n"
802 "a=mid:video_content_name_3\r\n"
803 "a=msid:local_stream_2 video_track_id_3\r\n"
804 "a=sendrecv\r\n"
805 "a=crypto:1 AES_CM_128_HMAC_SHA1_80 "
806 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32\r\n"
807 "a=rtpmap:120 VP8/90000\r\n";
808
809 // One candidate reference string as per W3c spec.
810 // candidate:<blah> not a=candidate:<blah>CRLF
811 static const char kRawCandidate[] =
812 "candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host generation 2";
813 // One candidate reference string.
814 static const char kSdpOneCandidate[] =
815 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host "
816 "generation 2\r\n";
817
818 static const char kSdpTcpActiveCandidate[] =
819 "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host "
820 "tcptype active generation 2";
821 static const char kSdpTcpPassiveCandidate[] =
822 "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host "
823 "tcptype passive generation 2";
824 static const char kSdpTcpSOCandidate[] =
825 "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host "
826 "tcptype so generation 2";
827 static const char kSdpTcpInvalidCandidate[] =
828 "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host "
829 "tcptype invalid generation 2";
830
831 // One candidate reference string with IPV6 address.
832 static const char kRawIPV6Candidate[] =
833 "candidate:a0+B/1 1 udp 2130706432 "
834 "abcd:abcd:abcd:abcd:abcd:abcd:abcd:abcd 1234 typ host generation 2";
835
836 // One candidate reference string.
837 static const char kSdpOneCandidateWithUfragPwd[] =
838 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host network_name"
839 " eth0 ufrag user_rtp pwd password_rtp generation 2\r\n";
840
841 static const char kRawHostnameCandidate[] =
842 "candidate:a0+B/1 1 udp 2130706432 a.test 1234 typ host generation 2";
843
844 // Session id and version
845 static const char kSessionId[] = "18446744069414584320";
846 static const char kSessionVersion[] = "18446462598732840960";
847
848 // ICE options.
849 static const char kIceOption1[] = "iceoption1";
850 static const char kIceOption2[] = "iceoption2";
851 static const char kIceOption3[] = "iceoption3";
852
853 // ICE ufrags/passwords.
854 static const char kUfragVoice[] = "ufrag_voice";
855 static const char kPwdVoice[] = "pwd_voice";
856 static const char kUfragVideo[] = "ufrag_video";
857 static const char kPwdVideo[] = "pwd_video";
858 static const char kUfragData[] = "ufrag_data";
859 static const char kPwdData[] = "pwd_data";
860
861 // Extra ufrags/passwords for extra unified plan m= sections.
862 static const char kUfragVoice2[] = "ufrag_voice_2";
863 static const char kPwdVoice2[] = "pwd_voice_2";
864 static const char kUfragVoice3[] = "ufrag_voice_3";
865 static const char kPwdVoice3[] = "pwd_voice_3";
866 static const char kUfragVideo2[] = "ufrag_video_2";
867 static const char kPwdVideo2[] = "pwd_video_2";
868 static const char kUfragVideo3[] = "ufrag_video_3";
869 static const char kPwdVideo3[] = "pwd_video_3";
870
871 // Content name
872 static const char kAudioContentName[] = "audio_content_name";
873 static const char kVideoContentName[] = "video_content_name";
874 static const char kDataContentName[] = "data_content_name";
875
876 // Extra content names for extra unified plan m= sections.
877 static const char kAudioContentName2[] = "audio_content_name_2";
878 static const char kAudioContentName3[] = "audio_content_name_3";
879 static const char kVideoContentName2[] = "video_content_name_2";
880 static const char kVideoContentName3[] = "video_content_name_3";
881
882 // MediaStream 1
883 static const char kStreamId1[] = "local_stream_1";
884 static const char kStream1Cname[] = "stream_1_cname";
885 static const char kAudioTrackId1[] = "audio_track_id_1";
886 static const uint32_t kAudioTrack1Ssrc = 1;
887 static const char kVideoTrackId1[] = "video_track_id_1";
888 static const uint32_t kVideoTrack1Ssrc1 = 2;
889 static const uint32_t kVideoTrack1Ssrc2 = 3;
890
891 // MediaStream 2
892 static const char kStreamId2[] = "local_stream_2";
893 static const char kStream2Cname[] = "stream_2_cname";
894 static const char kAudioTrackId2[] = "audio_track_id_2";
895 static const uint32_t kAudioTrack2Ssrc = 4;
896 static const char kVideoTrackId2[] = "video_track_id_2";
897 static const uint32_t kVideoTrack2Ssrc = 5;
898 static const char kVideoTrackId3[] = "video_track_id_3";
899 static const uint32_t kVideoTrack3Ssrc = 6;
900 static const char kAudioTrackId3[] = "audio_track_id_3";
901 static const uint32_t kAudioTrack3Ssrc = 7;
902
903 // DataChannel
904 static const char kDataChannelLabel[] = "data_channel";
905 static const char kDataChannelMsid[] = "data_channeld0";
906 static const char kDataChannelCname[] = "data_channel_cname";
907 static const uint32_t kDataChannelSsrc = 10;
908
909 // Candidate
910 static const char kDummyMid[] = "dummy_mid";
911 static const int kDummyIndex = 123;
912
913 // Misc
914 static SdpType kDummyType = SdpType::kOffer;
915
916 // Helper functions
917
SdpDeserialize(const std::string & message,JsepSessionDescription * jdesc)918 static bool SdpDeserialize(const std::string& message,
919 JsepSessionDescription* jdesc) {
920 return webrtc::SdpDeserialize(message, jdesc, NULL);
921 }
922
SdpDeserializeCandidate(const std::string & message,JsepIceCandidate * candidate)923 static bool SdpDeserializeCandidate(const std::string& message,
924 JsepIceCandidate* candidate) {
925 return webrtc::SdpDeserializeCandidate(message, candidate, NULL);
926 }
927
928 // Add some extra |newlines| to the |message| after |line|.
InjectAfter(const std::string & line,const std::string & newlines,std::string * message)929 static void InjectAfter(const std::string& line,
930 const std::string& newlines,
931 std::string* message) {
932 absl::StrReplaceAll({{line, line + newlines}}, message);
933 }
934
Replace(const std::string & line,const std::string & newlines,std::string * message)935 static void Replace(const std::string& line,
936 const std::string& newlines,
937 std::string* message) {
938 absl::StrReplaceAll({{line, newlines}}, message);
939 }
940
941 // Expect fail to parase |bad_sdp| and expect |bad_part| be part of the error
942 // message.
ExpectParseFailure(const std::string & bad_sdp,const std::string & bad_part)943 static void ExpectParseFailure(const std::string& bad_sdp,
944 const std::string& bad_part) {
945 JsepSessionDescription desc(kDummyType);
946 SdpParseError error;
947 bool ret = webrtc::SdpDeserialize(bad_sdp, &desc, &error);
948 EXPECT_FALSE(ret);
949 EXPECT_NE(std::string::npos, error.line.find(bad_part.c_str()));
950 }
951
952 // Expect fail to parse kSdpFullString if replace |good_part| with |bad_part|.
ExpectParseFailure(const char * good_part,const char * bad_part)953 static void ExpectParseFailure(const char* good_part, const char* bad_part) {
954 std::string bad_sdp = kSdpFullString;
955 Replace(good_part, bad_part, &bad_sdp);
956 ExpectParseFailure(bad_sdp, bad_part);
957 }
958
959 // Expect fail to parse kSdpFullString if add |newlines| after |injectpoint|.
ExpectParseFailureWithNewLines(const std::string & injectpoint,const std::string & newlines,const std::string & bad_part)960 static void ExpectParseFailureWithNewLines(const std::string& injectpoint,
961 const std::string& newlines,
962 const std::string& bad_part) {
963 std::string bad_sdp = kSdpFullString;
964 InjectAfter(injectpoint, newlines, &bad_sdp);
965 ExpectParseFailure(bad_sdp, bad_part);
966 }
967
ReplaceDirection(RtpTransceiverDirection direction,std::string * message)968 static void ReplaceDirection(RtpTransceiverDirection direction,
969 std::string* message) {
970 std::string new_direction;
971 switch (direction) {
972 case RtpTransceiverDirection::kInactive:
973 new_direction = "a=inactive";
974 break;
975 case RtpTransceiverDirection::kSendOnly:
976 new_direction = "a=sendonly";
977 break;
978 case RtpTransceiverDirection::kRecvOnly:
979 new_direction = "a=recvonly";
980 break;
981 case RtpTransceiverDirection::kSendRecv:
982 new_direction = "a=sendrecv";
983 break;
984 case RtpTransceiverDirection::kStopped:
985 default:
986 RTC_NOTREACHED();
987 new_direction = "a=sendrecv";
988 break;
989 }
990 Replace("a=sendrecv", new_direction, message);
991 }
992
ReplaceRejected(bool audio_rejected,bool video_rejected,std::string * message)993 static void ReplaceRejected(bool audio_rejected,
994 bool video_rejected,
995 std::string* message) {
996 if (audio_rejected) {
997 Replace("m=audio 9", "m=audio 0", message);
998 Replace(kAttributeIceUfragVoice, "", message);
999 Replace(kAttributeIcePwdVoice, "", message);
1000 }
1001 if (video_rejected) {
1002 Replace("m=video 9", "m=video 0", message);
1003 Replace(kAttributeIceUfragVideo, "", message);
1004 Replace(kAttributeIcePwdVideo, "", message);
1005 }
1006 }
1007
1008 // WebRtcSdpTest
1009
1010 class WebRtcSdpTest : public ::testing::Test {
1011 public:
WebRtcSdpTest()1012 WebRtcSdpTest() : jdesc_(kDummyType) {
1013 #ifdef WEBRTC_ANDROID
1014 webrtc::InitializeAndroidObjects();
1015 #endif
1016 // AudioContentDescription
1017 audio_desc_ = CreateAudioContentDescription();
1018 StreamParams audio_stream;
1019 audio_stream.id = kAudioTrackId1;
1020 audio_stream.cname = kStream1Cname;
1021 audio_stream.set_stream_ids({kStreamId1});
1022 audio_stream.ssrcs.push_back(kAudioTrack1Ssrc);
1023 audio_desc_->AddStream(audio_stream);
1024 rtc::SocketAddress audio_addr("74.125.127.126", 2345);
1025 audio_desc_->set_connection_address(audio_addr);
1026 desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp,
1027 absl::WrapUnique(audio_desc_));
1028
1029 // VideoContentDescription
1030 video_desc_ = CreateVideoContentDescription();
1031 StreamParams video_stream;
1032 video_stream.id = kVideoTrackId1;
1033 video_stream.cname = kStream1Cname;
1034 video_stream.set_stream_ids({kStreamId1});
1035 video_stream.ssrcs.push_back(kVideoTrack1Ssrc1);
1036 video_stream.ssrcs.push_back(kVideoTrack1Ssrc2);
1037 cricket::SsrcGroup ssrc_group(kFecSsrcGroupSemantics, video_stream.ssrcs);
1038 video_stream.ssrc_groups.push_back(ssrc_group);
1039 video_desc_->AddStream(video_stream);
1040 rtc::SocketAddress video_addr("74.125.224.39", 3457);
1041 video_desc_->set_connection_address(video_addr);
1042 desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp,
1043 absl::WrapUnique(video_desc_));
1044
1045 // TransportInfo
1046 desc_.AddTransportInfo(TransportInfo(
1047 kAudioContentName, TransportDescription(kUfragVoice, kPwdVoice)));
1048 desc_.AddTransportInfo(TransportInfo(
1049 kVideoContentName, TransportDescription(kUfragVideo, kPwdVideo)));
1050
1051 // v4 host
1052 int port = 1234;
1053 rtc::SocketAddress address("192.168.1.5", port++);
1054 Candidate candidate1(ICE_CANDIDATE_COMPONENT_RTP, "udp", address,
1055 kCandidatePriority, "", "", LOCAL_PORT_TYPE,
1056 kCandidateGeneration, kCandidateFoundation1);
1057 address.SetPort(port++);
1058 Candidate candidate2(ICE_CANDIDATE_COMPONENT_RTCP, "udp", address,
1059 kCandidatePriority, "", "", LOCAL_PORT_TYPE,
1060 kCandidateGeneration, kCandidateFoundation1);
1061 address.SetPort(port++);
1062 Candidate candidate3(ICE_CANDIDATE_COMPONENT_RTCP, "udp", address,
1063 kCandidatePriority, "", "", LOCAL_PORT_TYPE,
1064 kCandidateGeneration, kCandidateFoundation1);
1065 address.SetPort(port++);
1066 Candidate candidate4(ICE_CANDIDATE_COMPONENT_RTP, "udp", address,
1067 kCandidatePriority, "", "", LOCAL_PORT_TYPE,
1068 kCandidateGeneration, kCandidateFoundation1);
1069
1070 // v6 host
1071 rtc::SocketAddress v6_address("::1", port++);
1072 cricket::Candidate candidate5(cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp",
1073 v6_address, kCandidatePriority, "", "",
1074 cricket::LOCAL_PORT_TYPE,
1075 kCandidateGeneration, kCandidateFoundation2);
1076 v6_address.SetPort(port++);
1077 cricket::Candidate candidate6(cricket::ICE_CANDIDATE_COMPONENT_RTCP, "udp",
1078 v6_address, kCandidatePriority, "", "",
1079 cricket::LOCAL_PORT_TYPE,
1080 kCandidateGeneration, kCandidateFoundation2);
1081 v6_address.SetPort(port++);
1082 cricket::Candidate candidate7(cricket::ICE_CANDIDATE_COMPONENT_RTCP, "udp",
1083 v6_address, kCandidatePriority, "", "",
1084 cricket::LOCAL_PORT_TYPE,
1085 kCandidateGeneration, kCandidateFoundation2);
1086 v6_address.SetPort(port++);
1087 cricket::Candidate candidate8(cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp",
1088 v6_address, kCandidatePriority, "", "",
1089 cricket::LOCAL_PORT_TYPE,
1090 kCandidateGeneration, kCandidateFoundation2);
1091
1092 // stun
1093 int port_stun = 2345;
1094 rtc::SocketAddress address_stun("74.125.127.126", port_stun++);
1095 rtc::SocketAddress rel_address_stun("192.168.1.5", port_stun++);
1096 cricket::Candidate candidate9(cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp",
1097 address_stun, kCandidatePriority, "", "",
1098 STUN_PORT_TYPE, kCandidateGeneration,
1099 kCandidateFoundation3);
1100 candidate9.set_related_address(rel_address_stun);
1101
1102 address_stun.SetPort(port_stun++);
1103 rel_address_stun.SetPort(port_stun++);
1104 cricket::Candidate candidate10(cricket::ICE_CANDIDATE_COMPONENT_RTCP, "udp",
1105 address_stun, kCandidatePriority, "", "",
1106 STUN_PORT_TYPE, kCandidateGeneration,
1107 kCandidateFoundation3);
1108 candidate10.set_related_address(rel_address_stun);
1109
1110 // relay
1111 int port_relay = 3456;
1112 rtc::SocketAddress address_relay("74.125.224.39", port_relay++);
1113 cricket::Candidate candidate11(cricket::ICE_CANDIDATE_COMPONENT_RTCP, "udp",
1114 address_relay, kCandidatePriority, "", "",
1115 cricket::RELAY_PORT_TYPE,
1116 kCandidateGeneration, kCandidateFoundation4);
1117 address_relay.SetPort(port_relay++);
1118 cricket::Candidate candidate12(cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp",
1119 address_relay, kCandidatePriority, "", "",
1120 RELAY_PORT_TYPE, kCandidateGeneration,
1121 kCandidateFoundation4);
1122
1123 // voice
1124 candidates_.push_back(candidate1);
1125 candidates_.push_back(candidate2);
1126 candidates_.push_back(candidate5);
1127 candidates_.push_back(candidate6);
1128 candidates_.push_back(candidate9);
1129 candidates_.push_back(candidate10);
1130
1131 // video
1132 candidates_.push_back(candidate3);
1133 candidates_.push_back(candidate4);
1134 candidates_.push_back(candidate7);
1135 candidates_.push_back(candidate8);
1136 candidates_.push_back(candidate11);
1137 candidates_.push_back(candidate12);
1138
1139 jcandidate_.reset(
1140 new JsepIceCandidate(std::string("audio_content_name"), 0, candidate1));
1141
1142 // Set up JsepSessionDescription.
1143 jdesc_.Initialize(desc_.Clone(), kSessionId, kSessionVersion);
1144 std::string mline_id;
1145 int mline_index = 0;
1146 for (size_t i = 0; i < candidates_.size(); ++i) {
1147 // In this test, the audio m line index will be 0, and the video m line
1148 // will be 1.
1149 bool is_video = (i > 5);
1150 mline_id = is_video ? "video_content_name" : "audio_content_name";
1151 mline_index = is_video ? 1 : 0;
1152 JsepIceCandidate jice(mline_id, mline_index, candidates_.at(i));
1153 jdesc_.AddCandidate(&jice);
1154 }
1155 }
1156
RemoveVideoCandidates()1157 void RemoveVideoCandidates() {
1158 const IceCandidateCollection* video_candidates_collection =
1159 jdesc_.candidates(1);
1160 ASSERT_NE(nullptr, video_candidates_collection);
1161 std::vector<cricket::Candidate> video_candidates;
1162 for (size_t i = 0; i < video_candidates_collection->count(); ++i) {
1163 cricket::Candidate c = video_candidates_collection->at(i)->candidate();
1164 c.set_transport_name("video_content_name");
1165 video_candidates.push_back(c);
1166 }
1167 jdesc_.RemoveCandidates(video_candidates);
1168 }
1169
1170 // Turns the existing reference description into a description using
1171 // a=bundle-only. This means no transport attributes and a 0 port value on
1172 // the m= sections not associated with the BUNDLE-tag.
MakeBundleOnlyDescription()1173 void MakeBundleOnlyDescription() {
1174 RemoveVideoCandidates();
1175
1176 // And the rest of the transport attributes.
1177 desc_.transport_infos()[1].description.ice_ufrag.clear();
1178 desc_.transport_infos()[1].description.ice_pwd.clear();
1179 desc_.transport_infos()[1].description.connection_role =
1180 cricket::CONNECTIONROLE_NONE;
1181
1182 // Set bundle-only flag.
1183 desc_.contents()[1].bundle_only = true;
1184
1185 // Add BUNDLE group.
1186 ContentGroup group(cricket::GROUP_TYPE_BUNDLE);
1187 group.AddContentName(kAudioContentName);
1188 group.AddContentName(kVideoContentName);
1189 desc_.AddGroup(group);
1190
1191 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
1192 jdesc_.session_version()));
1193 }
1194
1195 // Turns the existing reference description into a plan B description,
1196 // with 2 audio tracks and 3 video tracks.
MakePlanBDescription()1197 void MakePlanBDescription() {
1198 audio_desc_ = new AudioContentDescription(*audio_desc_);
1199 video_desc_ = new VideoContentDescription(*video_desc_);
1200
1201 StreamParams audio_track_2;
1202 audio_track_2.id = kAudioTrackId2;
1203 audio_track_2.cname = kStream2Cname;
1204 audio_track_2.set_stream_ids({kStreamId2});
1205 audio_track_2.ssrcs.push_back(kAudioTrack2Ssrc);
1206 audio_desc_->AddStream(audio_track_2);
1207
1208 StreamParams video_track_2;
1209 video_track_2.id = kVideoTrackId2;
1210 video_track_2.cname = kStream2Cname;
1211 video_track_2.set_stream_ids({kStreamId2});
1212 video_track_2.ssrcs.push_back(kVideoTrack2Ssrc);
1213 video_desc_->AddStream(video_track_2);
1214
1215 StreamParams video_track_3;
1216 video_track_3.id = kVideoTrackId3;
1217 video_track_3.cname = kStream2Cname;
1218 video_track_3.set_stream_ids({kStreamId2});
1219 video_track_3.ssrcs.push_back(kVideoTrack3Ssrc);
1220 video_desc_->AddStream(video_track_3);
1221
1222 desc_.RemoveContentByName(kAudioContentName);
1223 desc_.RemoveContentByName(kVideoContentName);
1224 desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp,
1225 absl::WrapUnique(audio_desc_));
1226 desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp,
1227 absl::WrapUnique(video_desc_));
1228
1229 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
1230 jdesc_.session_version()));
1231 }
1232
1233 // Turns the existing reference description into a unified plan description,
1234 // with 2 audio tracks and 3 video tracks.
MakeUnifiedPlanDescription(bool use_ssrcs=true)1235 void MakeUnifiedPlanDescription(bool use_ssrcs = true) {
1236 // Audio track 2.
1237 AudioContentDescription* audio_desc_2 = CreateAudioContentDescription();
1238 StreamParams audio_track_2;
1239 audio_track_2.id = kAudioTrackId2;
1240 audio_track_2.set_stream_ids({kStreamId2});
1241 if (use_ssrcs) {
1242 audio_track_2.cname = kStream2Cname;
1243 audio_track_2.ssrcs.push_back(kAudioTrack2Ssrc);
1244 }
1245 audio_desc_2->AddStream(audio_track_2);
1246 desc_.AddContent(kAudioContentName2, MediaProtocolType::kRtp,
1247 absl::WrapUnique(audio_desc_2));
1248 desc_.AddTransportInfo(TransportInfo(
1249 kAudioContentName2, TransportDescription(kUfragVoice2, kPwdVoice2)));
1250 // Video track 2, in stream 2.
1251 VideoContentDescription* video_desc_2 = CreateVideoContentDescription();
1252 StreamParams video_track_2;
1253 video_track_2.id = kVideoTrackId2;
1254 video_track_2.set_stream_ids({kStreamId2});
1255 if (use_ssrcs) {
1256 video_track_2.cname = kStream2Cname;
1257 video_track_2.ssrcs.push_back(kVideoTrack2Ssrc);
1258 }
1259 video_desc_2->AddStream(video_track_2);
1260 desc_.AddContent(kVideoContentName2, MediaProtocolType::kRtp,
1261 absl::WrapUnique(video_desc_2));
1262 desc_.AddTransportInfo(TransportInfo(
1263 kVideoContentName2, TransportDescription(kUfragVideo2, kPwdVideo2)));
1264
1265 // Video track 3, in stream 2.
1266 VideoContentDescription* video_desc_3 = CreateVideoContentDescription();
1267 StreamParams video_track_3;
1268 video_track_3.id = kVideoTrackId3;
1269 video_track_3.set_stream_ids({kStreamId2});
1270 if (use_ssrcs) {
1271 video_track_3.cname = kStream2Cname;
1272 video_track_3.ssrcs.push_back(kVideoTrack3Ssrc);
1273 }
1274 video_desc_3->AddStream(video_track_3);
1275 desc_.AddContent(kVideoContentName3, MediaProtocolType::kRtp,
1276 absl::WrapUnique(video_desc_3));
1277 desc_.AddTransportInfo(TransportInfo(
1278 kVideoContentName3, TransportDescription(kUfragVideo3, kPwdVideo3)));
1279 desc_.set_msid_signaling(cricket::kMsidSignalingMediaSection);
1280
1281 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
1282 jdesc_.session_version()));
1283 }
1284
1285 // Creates an audio content description with no streams, and some default
1286 // configuration.
CreateAudioContentDescription()1287 AudioContentDescription* CreateAudioContentDescription() {
1288 AudioContentDescription* audio = new AudioContentDescription();
1289 audio->set_rtcp_mux(true);
1290 audio->set_rtcp_reduced_size(true);
1291 audio->AddCrypto(CryptoParams(
1292 1, "AES_CM_128_HMAC_SHA1_32",
1293 "inline:NzB4d1BINUAvLEw6UzF3WSJ+PSdFcGdUJShpX1Zj|2^20|1:32",
1294 "dummy_session_params"));
1295 audio->set_protocol(cricket::kMediaProtocolSavpf);
1296 audio->AddCodec(AudioCodec(111, "opus", 48000, 0, 2));
1297 audio->AddCodec(AudioCodec(103, "ISAC", 16000, 0, 1));
1298 audio->AddCodec(AudioCodec(104, "ISAC", 32000, 0, 1));
1299 return audio;
1300 }
1301
1302 // Turns the existing reference description into a unified plan description,
1303 // with 3 audio MediaContentDescriptions with special StreamParams that
1304 // contain 0 or multiple stream ids: - audio track 1 has 1 media stream id -
1305 // audio track 2 has 2 media stream ids - audio track 3 has 0 media stream ids
MakeUnifiedPlanDescriptionMultipleStreamIds(const int msid_signaling)1306 void MakeUnifiedPlanDescriptionMultipleStreamIds(const int msid_signaling) {
1307 desc_.RemoveContentByName(kVideoContentName);
1308 desc_.RemoveTransportInfoByName(kVideoContentName);
1309 RemoveVideoCandidates();
1310
1311 // Audio track 2 has 2 media stream ids.
1312 AudioContentDescription* audio_desc_2 = CreateAudioContentDescription();
1313 StreamParams audio_track_2;
1314 audio_track_2.id = kAudioTrackId2;
1315 audio_track_2.cname = kStream1Cname;
1316 audio_track_2.set_stream_ids({kStreamId1, kStreamId2});
1317 audio_track_2.ssrcs.push_back(kAudioTrack2Ssrc);
1318 audio_desc_2->AddStream(audio_track_2);
1319 desc_.AddContent(kAudioContentName2, MediaProtocolType::kRtp,
1320 absl::WrapUnique(audio_desc_2));
1321 desc_.AddTransportInfo(TransportInfo(
1322 kAudioContentName2, TransportDescription(kUfragVoice2, kPwdVoice2)));
1323
1324 // Audio track 3 has no stream ids.
1325 AudioContentDescription* audio_desc_3 = CreateAudioContentDescription();
1326 StreamParams audio_track_3;
1327 audio_track_3.id = kAudioTrackId3;
1328 audio_track_3.cname = kStream2Cname;
1329 audio_track_3.set_stream_ids({});
1330 audio_track_3.ssrcs.push_back(kAudioTrack3Ssrc);
1331 audio_desc_3->AddStream(audio_track_3);
1332 desc_.AddContent(kAudioContentName3, MediaProtocolType::kRtp,
1333 absl::WrapUnique(audio_desc_3));
1334 desc_.AddTransportInfo(TransportInfo(
1335 kAudioContentName3, TransportDescription(kUfragVoice3, kPwdVoice3)));
1336 desc_.set_msid_signaling(msid_signaling);
1337 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
1338 jdesc_.session_version()));
1339 }
1340
1341 // Turns the existing reference description into a unified plan description
1342 // with one audio MediaContentDescription that contains one StreamParams with
1343 // 0 ssrcs.
MakeUnifiedPlanDescriptionNoSsrcSignaling()1344 void MakeUnifiedPlanDescriptionNoSsrcSignaling() {
1345 desc_.RemoveContentByName(kVideoContentName);
1346 desc_.RemoveContentByName(kAudioContentName);
1347 desc_.RemoveTransportInfoByName(kVideoContentName);
1348 RemoveVideoCandidates();
1349
1350 AudioContentDescription* audio_desc = CreateAudioContentDescription();
1351 StreamParams audio_track;
1352 audio_track.id = kAudioTrackId1;
1353 audio_track.set_stream_ids({kStreamId1});
1354 audio_desc->AddStream(audio_track);
1355 desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp,
1356 absl::WrapUnique(audio_desc));
1357
1358 // Enable signaling a=msid lines.
1359 desc_.set_msid_signaling(cricket::kMsidSignalingMediaSection);
1360 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
1361 jdesc_.session_version()));
1362 }
1363
1364 // Creates a video content description with no streams, and some default
1365 // configuration.
CreateVideoContentDescription()1366 VideoContentDescription* CreateVideoContentDescription() {
1367 VideoContentDescription* video = new VideoContentDescription();
1368 video->AddCrypto(CryptoParams(
1369 1, "AES_CM_128_HMAC_SHA1_80",
1370 "inline:d0RmdmcmVCspeEc3QGZiNWpVLFJhQX1cfHAwJSoj|2^20|1:32", ""));
1371 video->set_protocol(cricket::kMediaProtocolSavpf);
1372 video->AddCodec(
1373 VideoCodec(120, JsepSessionDescription::kDefaultVideoCodecName));
1374 return video;
1375 }
1376
1377 template <class MCD>
CompareMediaContentDescription(const MCD * cd1,const MCD * cd2)1378 void CompareMediaContentDescription(const MCD* cd1, const MCD* cd2) {
1379 // type
1380 EXPECT_EQ(cd1->type(), cd2->type());
1381
1382 // content direction
1383 EXPECT_EQ(cd1->direction(), cd2->direction());
1384
1385 // rtcp_mux
1386 EXPECT_EQ(cd1->rtcp_mux(), cd2->rtcp_mux());
1387
1388 // rtcp_reduced_size
1389 EXPECT_EQ(cd1->rtcp_reduced_size(), cd2->rtcp_reduced_size());
1390
1391 // cryptos
1392 EXPECT_EQ(cd1->cryptos().size(), cd2->cryptos().size());
1393 if (cd1->cryptos().size() != cd2->cryptos().size()) {
1394 ADD_FAILURE();
1395 return;
1396 }
1397 for (size_t i = 0; i < cd1->cryptos().size(); ++i) {
1398 const CryptoParams c1 = cd1->cryptos().at(i);
1399 const CryptoParams c2 = cd2->cryptos().at(i);
1400 EXPECT_TRUE(c1.Matches(c2));
1401 EXPECT_EQ(c1.key_params, c2.key_params);
1402 EXPECT_EQ(c1.session_params, c2.session_params);
1403 }
1404
1405 // protocol
1406 // Use an equivalence class here, for old and new versions of the
1407 // protocol description.
1408 if (cd1->protocol() == cricket::kMediaProtocolDtlsSctp ||
1409 cd1->protocol() == cricket::kMediaProtocolUdpDtlsSctp ||
1410 cd1->protocol() == cricket::kMediaProtocolTcpDtlsSctp) {
1411 const bool cd2_is_also_dtls_sctp =
1412 cd2->protocol() == cricket::kMediaProtocolDtlsSctp ||
1413 cd2->protocol() == cricket::kMediaProtocolUdpDtlsSctp ||
1414 cd2->protocol() == cricket::kMediaProtocolTcpDtlsSctp;
1415 EXPECT_TRUE(cd2_is_also_dtls_sctp);
1416 } else {
1417 EXPECT_EQ(cd1->protocol(), cd2->protocol());
1418 }
1419
1420 // codecs
1421 EXPECT_EQ(cd1->codecs(), cd2->codecs());
1422
1423 // bandwidth
1424 EXPECT_EQ(cd1->bandwidth(), cd2->bandwidth());
1425
1426 // streams
1427 EXPECT_EQ(cd1->streams(), cd2->streams());
1428
1429 // extmap-allow-mixed
1430 EXPECT_EQ(cd1->extmap_allow_mixed_enum(), cd2->extmap_allow_mixed_enum());
1431
1432 // extmap
1433 ASSERT_EQ(cd1->rtp_header_extensions().size(),
1434 cd2->rtp_header_extensions().size());
1435 for (size_t i = 0; i < cd1->rtp_header_extensions().size(); ++i) {
1436 const RtpExtension ext1 = cd1->rtp_header_extensions().at(i);
1437 const RtpExtension ext2 = cd2->rtp_header_extensions().at(i);
1438 EXPECT_EQ(ext1.uri, ext2.uri);
1439 EXPECT_EQ(ext1.id, ext2.id);
1440 EXPECT_EQ(ext1.encrypt, ext2.encrypt);
1441 }
1442 }
1443
CompareRidDescriptionIds(const std::vector<RidDescription> & rids,const std::vector<std::string> & ids)1444 void CompareRidDescriptionIds(const std::vector<RidDescription>& rids,
1445 const std::vector<std::string>& ids) {
1446 // Order of elements does not matter, only equivalence of sets.
1447 EXPECT_EQ(rids.size(), ids.size());
1448 for (const std::string& id : ids) {
1449 EXPECT_EQ(1l, absl::c_count_if(rids, [id](const RidDescription& rid) {
1450 return rid.rid == id;
1451 }));
1452 }
1453 }
1454
CompareSimulcastDescription(const SimulcastDescription & simulcast1,const SimulcastDescription & simulcast2)1455 void CompareSimulcastDescription(const SimulcastDescription& simulcast1,
1456 const SimulcastDescription& simulcast2) {
1457 EXPECT_EQ(simulcast1.send_layers().size(), simulcast2.send_layers().size());
1458 EXPECT_EQ(simulcast1.receive_layers().size(),
1459 simulcast2.receive_layers().size());
1460 }
1461
CompareRtpDataContentDescription(const RtpDataContentDescription * dcd1,const RtpDataContentDescription * dcd2)1462 void CompareRtpDataContentDescription(const RtpDataContentDescription* dcd1,
1463 const RtpDataContentDescription* dcd2) {
1464 CompareMediaContentDescription<RtpDataContentDescription>(dcd1, dcd2);
1465 }
1466
CompareSctpDataContentDescription(const SctpDataContentDescription * dcd1,const SctpDataContentDescription * dcd2)1467 void CompareSctpDataContentDescription(
1468 const SctpDataContentDescription* dcd1,
1469 const SctpDataContentDescription* dcd2) {
1470 EXPECT_EQ(dcd1->use_sctpmap(), dcd2->use_sctpmap());
1471 EXPECT_EQ(dcd1->port(), dcd2->port());
1472 EXPECT_EQ(dcd1->max_message_size(), dcd2->max_message_size());
1473 }
1474
CompareSessionDescription(const SessionDescription & desc1,const SessionDescription & desc2)1475 void CompareSessionDescription(const SessionDescription& desc1,
1476 const SessionDescription& desc2) {
1477 // Compare content descriptions.
1478 if (desc1.contents().size() != desc2.contents().size()) {
1479 ADD_FAILURE();
1480 return;
1481 }
1482 for (size_t i = 0; i < desc1.contents().size(); ++i) {
1483 const cricket::ContentInfo& c1 = desc1.contents().at(i);
1484 const cricket::ContentInfo& c2 = desc2.contents().at(i);
1485 // ContentInfo properties.
1486 EXPECT_EQ(c1.name, c2.name);
1487 EXPECT_EQ(c1.type, c2.type);
1488 EXPECT_EQ(c1.rejected, c2.rejected);
1489 EXPECT_EQ(c1.bundle_only, c2.bundle_only);
1490
1491 ASSERT_EQ(IsAudioContent(&c1), IsAudioContent(&c2));
1492 if (IsAudioContent(&c1)) {
1493 const AudioContentDescription* acd1 =
1494 c1.media_description()->as_audio();
1495 const AudioContentDescription* acd2 =
1496 c2.media_description()->as_audio();
1497 CompareMediaContentDescription<AudioContentDescription>(acd1, acd2);
1498 }
1499
1500 ASSERT_EQ(IsVideoContent(&c1), IsVideoContent(&c2));
1501 if (IsVideoContent(&c1)) {
1502 const VideoContentDescription* vcd1 =
1503 c1.media_description()->as_video();
1504 const VideoContentDescription* vcd2 =
1505 c2.media_description()->as_video();
1506 CompareMediaContentDescription<VideoContentDescription>(vcd1, vcd2);
1507 }
1508
1509 ASSERT_EQ(IsDataContent(&c1), IsDataContent(&c2));
1510 if (c1.media_description()->as_sctp()) {
1511 ASSERT_TRUE(c2.media_description()->as_sctp());
1512 const SctpDataContentDescription* scd1 =
1513 c1.media_description()->as_sctp();
1514 const SctpDataContentDescription* scd2 =
1515 c2.media_description()->as_sctp();
1516 CompareSctpDataContentDescription(scd1, scd2);
1517 } else {
1518 if (IsDataContent(&c1)) {
1519 const RtpDataContentDescription* dcd1 =
1520 c1.media_description()->as_rtp_data();
1521 const RtpDataContentDescription* dcd2 =
1522 c2.media_description()->as_rtp_data();
1523 CompareRtpDataContentDescription(dcd1, dcd2);
1524 }
1525 }
1526
1527 CompareSimulcastDescription(
1528 c1.media_description()->simulcast_description(),
1529 c2.media_description()->simulcast_description());
1530 }
1531
1532 // group
1533 const cricket::ContentGroups groups1 = desc1.groups();
1534 const cricket::ContentGroups groups2 = desc2.groups();
1535 EXPECT_EQ(groups1.size(), groups1.size());
1536 if (groups1.size() != groups2.size()) {
1537 ADD_FAILURE();
1538 return;
1539 }
1540 for (size_t i = 0; i < groups1.size(); ++i) {
1541 const cricket::ContentGroup group1 = groups1.at(i);
1542 const cricket::ContentGroup group2 = groups2.at(i);
1543 EXPECT_EQ(group1.semantics(), group2.semantics());
1544 const cricket::ContentNames names1 = group1.content_names();
1545 const cricket::ContentNames names2 = group2.content_names();
1546 EXPECT_EQ(names1.size(), names2.size());
1547 if (names1.size() != names2.size()) {
1548 ADD_FAILURE();
1549 return;
1550 }
1551 cricket::ContentNames::const_iterator iter1 = names1.begin();
1552 cricket::ContentNames::const_iterator iter2 = names2.begin();
1553 while (iter1 != names1.end()) {
1554 EXPECT_EQ(*iter1++, *iter2++);
1555 }
1556 }
1557
1558 // transport info
1559 const cricket::TransportInfos transports1 = desc1.transport_infos();
1560 const cricket::TransportInfos transports2 = desc2.transport_infos();
1561 EXPECT_EQ(transports1.size(), transports2.size());
1562 if (transports1.size() != transports2.size()) {
1563 ADD_FAILURE();
1564 return;
1565 }
1566 for (size_t i = 0; i < transports1.size(); ++i) {
1567 const cricket::TransportInfo transport1 = transports1.at(i);
1568 const cricket::TransportInfo transport2 = transports2.at(i);
1569 EXPECT_EQ(transport1.content_name, transport2.content_name);
1570 EXPECT_EQ(transport1.description.ice_ufrag,
1571 transport2.description.ice_ufrag);
1572 EXPECT_EQ(transport1.description.ice_pwd, transport2.description.ice_pwd);
1573 EXPECT_EQ(transport1.description.ice_mode,
1574 transport2.description.ice_mode);
1575 if (transport1.description.identity_fingerprint) {
1576 EXPECT_EQ(*transport1.description.identity_fingerprint,
1577 *transport2.description.identity_fingerprint);
1578 } else {
1579 EXPECT_EQ(transport1.description.identity_fingerprint.get(),
1580 transport2.description.identity_fingerprint.get());
1581 }
1582 EXPECT_EQ(transport1.description.transport_options,
1583 transport2.description.transport_options);
1584 }
1585
1586 // global attributes
1587 EXPECT_EQ(desc1.msid_supported(), desc2.msid_supported());
1588 EXPECT_EQ(desc1.extmap_allow_mixed(), desc2.extmap_allow_mixed());
1589 }
1590
CompareSessionDescription(const JsepSessionDescription & desc1,const JsepSessionDescription & desc2)1591 bool CompareSessionDescription(const JsepSessionDescription& desc1,
1592 const JsepSessionDescription& desc2) {
1593 EXPECT_EQ(desc1.session_id(), desc2.session_id());
1594 EXPECT_EQ(desc1.session_version(), desc2.session_version());
1595 CompareSessionDescription(*desc1.description(), *desc2.description());
1596 if (desc1.number_of_mediasections() != desc2.number_of_mediasections())
1597 return false;
1598 for (size_t i = 0; i < desc1.number_of_mediasections(); ++i) {
1599 const IceCandidateCollection* cc1 = desc1.candidates(i);
1600 const IceCandidateCollection* cc2 = desc2.candidates(i);
1601 if (cc1->count() != cc2->count()) {
1602 ADD_FAILURE();
1603 return false;
1604 }
1605 for (size_t j = 0; j < cc1->count(); ++j) {
1606 const IceCandidateInterface* c1 = cc1->at(j);
1607 const IceCandidateInterface* c2 = cc2->at(j);
1608 EXPECT_EQ(c1->sdp_mid(), c2->sdp_mid());
1609 EXPECT_EQ(c1->sdp_mline_index(), c2->sdp_mline_index());
1610 EXPECT_TRUE(c1->candidate().IsEquivalent(c2->candidate()));
1611 }
1612 }
1613 return true;
1614 }
1615
1616 // Disable the ice-ufrag and ice-pwd in given |sdp| message by replacing
1617 // them with invalid keywords so that the parser will just ignore them.
RemoveCandidateUfragPwd(std::string * sdp)1618 bool RemoveCandidateUfragPwd(std::string* sdp) {
1619 absl::StrReplaceAll(
1620 {{"a=ice-ufrag", "a=xice-ufrag"}, {"a=ice-pwd", "a=xice-pwd"}}, sdp);
1621 return true;
1622 }
1623
1624 // Update the candidates in |jdesc| to use the given |ufrag| and |pwd|.
UpdateCandidateUfragPwd(JsepSessionDescription * jdesc,int mline_index,const std::string & ufrag,const std::string & pwd)1625 bool UpdateCandidateUfragPwd(JsepSessionDescription* jdesc,
1626 int mline_index,
1627 const std::string& ufrag,
1628 const std::string& pwd) {
1629 std::string content_name;
1630 if (mline_index == 0) {
1631 content_name = kAudioContentName;
1632 } else if (mline_index == 1) {
1633 content_name = kVideoContentName;
1634 } else {
1635 RTC_NOTREACHED();
1636 }
1637 TransportInfo transport_info(content_name,
1638 TransportDescription(ufrag, pwd));
1639 SessionDescription* desc =
1640 const_cast<SessionDescription*>(jdesc->description());
1641 desc->RemoveTransportInfoByName(content_name);
1642 desc->AddTransportInfo(transport_info);
1643 for (size_t i = 0; i < jdesc_.number_of_mediasections(); ++i) {
1644 const IceCandidateCollection* cc = jdesc_.candidates(i);
1645 for (size_t j = 0; j < cc->count(); ++j) {
1646 if (cc->at(j)->sdp_mline_index() == mline_index) {
1647 const_cast<Candidate&>(cc->at(j)->candidate()).set_username(ufrag);
1648 const_cast<Candidate&>(cc->at(j)->candidate()).set_password(pwd);
1649 }
1650 }
1651 }
1652 return true;
1653 }
1654
AddIceOptions(const std::string & content_name,const std::vector<std::string> & transport_options)1655 void AddIceOptions(const std::string& content_name,
1656 const std::vector<std::string>& transport_options) {
1657 ASSERT_TRUE(desc_.GetTransportInfoByName(content_name) != NULL);
1658 cricket::TransportInfo transport_info =
1659 *(desc_.GetTransportInfoByName(content_name));
1660 desc_.RemoveTransportInfoByName(content_name);
1661 transport_info.description.transport_options = transport_options;
1662 desc_.AddTransportInfo(transport_info);
1663 }
1664
SetIceUfragPwd(const std::string & content_name,const std::string & ice_ufrag,const std::string & ice_pwd)1665 void SetIceUfragPwd(const std::string& content_name,
1666 const std::string& ice_ufrag,
1667 const std::string& ice_pwd) {
1668 ASSERT_TRUE(desc_.GetTransportInfoByName(content_name) != NULL);
1669 cricket::TransportInfo transport_info =
1670 *(desc_.GetTransportInfoByName(content_name));
1671 desc_.RemoveTransportInfoByName(content_name);
1672 transport_info.description.ice_ufrag = ice_ufrag;
1673 transport_info.description.ice_pwd = ice_pwd;
1674 desc_.AddTransportInfo(transport_info);
1675 }
1676
AddFingerprint()1677 void AddFingerprint() {
1678 desc_.RemoveTransportInfoByName(kAudioContentName);
1679 desc_.RemoveTransportInfoByName(kVideoContentName);
1680 rtc::SSLFingerprint fingerprint(rtc::DIGEST_SHA_1, kIdentityDigest);
1681 desc_.AddTransportInfo(TransportInfo(
1682 kAudioContentName,
1683 TransportDescription(std::vector<std::string>(), kUfragVoice, kPwdVoice,
1684 cricket::ICEMODE_FULL,
1685 cricket::CONNECTIONROLE_NONE, &fingerprint)));
1686 desc_.AddTransportInfo(TransportInfo(
1687 kVideoContentName,
1688 TransportDescription(std::vector<std::string>(), kUfragVideo, kPwdVideo,
1689 cricket::ICEMODE_FULL,
1690 cricket::CONNECTIONROLE_NONE, &fingerprint)));
1691 }
1692
AddExtmap(bool encrypted)1693 void AddExtmap(bool encrypted) {
1694 audio_desc_ = new AudioContentDescription(*audio_desc_);
1695 video_desc_ = new VideoContentDescription(*video_desc_);
1696 audio_desc_->AddRtpHeaderExtension(
1697 RtpExtension(kExtmapUri, kExtmapId, encrypted));
1698 video_desc_->AddRtpHeaderExtension(
1699 RtpExtension(kExtmapUri, kExtmapId, encrypted));
1700 desc_.RemoveContentByName(kAudioContentName);
1701 desc_.RemoveContentByName(kVideoContentName);
1702 desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp,
1703 absl::WrapUnique(audio_desc_));
1704 desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp,
1705 absl::WrapUnique(video_desc_));
1706 }
1707
RemoveCryptos()1708 void RemoveCryptos() {
1709 audio_desc_->set_cryptos(std::vector<CryptoParams>());
1710 video_desc_->set_cryptos(std::vector<CryptoParams>());
1711 }
1712
1713 // Removes everything in StreamParams from the session description that is
1714 // used for a=ssrc lines.
RemoveSsrcSignalingFromStreamParams()1715 void RemoveSsrcSignalingFromStreamParams() {
1716 for (cricket::ContentInfo& content_info :
1717 jdesc_.description()->contents()) {
1718 // With Unified Plan there should be one StreamParams per m= section.
1719 StreamParams& stream =
1720 content_info.media_description()->mutable_streams()[0];
1721 stream.ssrcs.clear();
1722 stream.ssrc_groups.clear();
1723 stream.cname.clear();
1724 }
1725 }
1726
1727 // Removes all a=ssrc lines from the SDP string, except for the
1728 // "a=ssrc:... cname:..." lines.
RemoveSsrcMsidLinesFromSdpString(std::string * sdp_string)1729 void RemoveSsrcMsidLinesFromSdpString(std::string* sdp_string) {
1730 const char kAttributeSsrc[] = "a=ssrc";
1731 const char kAttributeCname[] = "cname";
1732 size_t ssrc_line_pos = sdp_string->find(kAttributeSsrc);
1733 while (ssrc_line_pos != std::string::npos) {
1734 size_t beg_line_pos = sdp_string->rfind('\n', ssrc_line_pos);
1735 size_t end_line_pos = sdp_string->find('\n', ssrc_line_pos);
1736 size_t cname_pos = sdp_string->find(kAttributeCname, ssrc_line_pos);
1737 if (cname_pos == std::string::npos || cname_pos > end_line_pos) {
1738 // Only erase a=ssrc lines that don't contain "cname".
1739 sdp_string->erase(beg_line_pos, end_line_pos - beg_line_pos);
1740 ssrc_line_pos = sdp_string->find(kAttributeSsrc, beg_line_pos);
1741 } else {
1742 // Skip the "a=ssrc:... cname" line and find the next "a=ssrc" line.
1743 ssrc_line_pos = sdp_string->find(kAttributeSsrc, end_line_pos);
1744 }
1745 }
1746 }
1747
1748 // Removes all a=ssrc lines from the SDP string.
RemoveSsrcLinesFromSdpString(std::string * sdp_string)1749 void RemoveSsrcLinesFromSdpString(std::string* sdp_string) {
1750 const char kAttributeSsrc[] = "a=ssrc";
1751 while (sdp_string->find(kAttributeSsrc) != std::string::npos) {
1752 size_t pos_ssrc_attribute = sdp_string->find(kAttributeSsrc);
1753 size_t beg_line_pos = sdp_string->rfind('\n', pos_ssrc_attribute);
1754 size_t end_line_pos = sdp_string->find('\n', pos_ssrc_attribute);
1755 sdp_string->erase(beg_line_pos, end_line_pos - beg_line_pos);
1756 }
1757 }
1758
TestSerializeDirection(RtpTransceiverDirection direction)1759 bool TestSerializeDirection(RtpTransceiverDirection direction) {
1760 audio_desc_->set_direction(direction);
1761 video_desc_->set_direction(direction);
1762 std::string new_sdp = kSdpFullString;
1763 ReplaceDirection(direction, &new_sdp);
1764
1765 if (!jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
1766 jdesc_.session_version())) {
1767 return false;
1768 }
1769 std::string message = webrtc::SdpSerialize(jdesc_);
1770 EXPECT_EQ(new_sdp, message);
1771 return true;
1772 }
1773
TestSerializeRejected(bool audio_rejected,bool video_rejected)1774 bool TestSerializeRejected(bool audio_rejected, bool video_rejected) {
1775 audio_desc_ = new AudioContentDescription(*audio_desc_);
1776 video_desc_ = new VideoContentDescription(*video_desc_);
1777
1778 desc_.RemoveContentByName(kAudioContentName);
1779 desc_.RemoveContentByName(kVideoContentName);
1780 desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, audio_rejected,
1781 absl::WrapUnique(audio_desc_));
1782 desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, video_rejected,
1783 absl::WrapUnique(video_desc_));
1784 SetIceUfragPwd(kAudioContentName, audio_rejected ? "" : kUfragVoice,
1785 audio_rejected ? "" : kPwdVoice);
1786 SetIceUfragPwd(kVideoContentName, video_rejected ? "" : kUfragVideo,
1787 video_rejected ? "" : kPwdVideo);
1788
1789 std::string new_sdp = kSdpString;
1790 ReplaceRejected(audio_rejected, video_rejected, &new_sdp);
1791
1792 JsepSessionDescription jdesc_no_candidates(kDummyType);
1793 MakeDescriptionWithoutCandidates(&jdesc_no_candidates);
1794 std::string message = webrtc::SdpSerialize(jdesc_no_candidates);
1795 EXPECT_EQ(new_sdp, message);
1796 return true;
1797 }
1798
AddSctpDataChannel(bool use_sctpmap)1799 void AddSctpDataChannel(bool use_sctpmap) {
1800 std::unique_ptr<SctpDataContentDescription> data(
1801 new SctpDataContentDescription());
1802 sctp_desc_ = data.get();
1803 sctp_desc_->set_use_sctpmap(use_sctpmap);
1804 sctp_desc_->set_protocol(cricket::kMediaProtocolUdpDtlsSctp);
1805 sctp_desc_->set_port(kDefaultSctpPort);
1806 desc_.AddContent(kDataContentName, MediaProtocolType::kSctp,
1807 std::move(data));
1808 desc_.AddTransportInfo(TransportInfo(
1809 kDataContentName, TransportDescription(kUfragData, kPwdData)));
1810 }
1811
AddRtpDataChannel()1812 void AddRtpDataChannel() {
1813 std::unique_ptr<RtpDataContentDescription> data(
1814 new RtpDataContentDescription());
1815 data_desc_ = data.get();
1816
1817 data_desc_->AddCodec(DataCodec(101, "google-data"));
1818 StreamParams data_stream;
1819 data_stream.id = kDataChannelMsid;
1820 data_stream.cname = kDataChannelCname;
1821 data_stream.set_stream_ids({kDataChannelLabel});
1822 data_stream.ssrcs.push_back(kDataChannelSsrc);
1823 data_desc_->AddStream(data_stream);
1824 data_desc_->AddCrypto(
1825 CryptoParams(1, "AES_CM_128_HMAC_SHA1_80",
1826 "inline:FvLcvU2P3ZWmQxgPAgcDu7Zl9vftYElFOjEzhWs5", ""));
1827 data_desc_->set_protocol(cricket::kMediaProtocolSavpf);
1828 desc_.AddContent(kDataContentName, MediaProtocolType::kRtp,
1829 std::move(data));
1830 desc_.AddTransportInfo(TransportInfo(
1831 kDataContentName, TransportDescription(kUfragData, kPwdData)));
1832 }
1833
TestDeserializeDirection(RtpTransceiverDirection direction)1834 bool TestDeserializeDirection(RtpTransceiverDirection direction) {
1835 std::string new_sdp = kSdpFullString;
1836 ReplaceDirection(direction, &new_sdp);
1837 JsepSessionDescription new_jdesc(kDummyType);
1838
1839 EXPECT_TRUE(SdpDeserialize(new_sdp, &new_jdesc));
1840
1841 audio_desc_->set_direction(direction);
1842 video_desc_->set_direction(direction);
1843 if (!jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
1844 jdesc_.session_version())) {
1845 return false;
1846 }
1847 EXPECT_TRUE(CompareSessionDescription(jdesc_, new_jdesc));
1848 return true;
1849 }
1850
TestDeserializeRejected(bool audio_rejected,bool video_rejected)1851 bool TestDeserializeRejected(bool audio_rejected, bool video_rejected) {
1852 std::string new_sdp = kSdpString;
1853 ReplaceRejected(audio_rejected, video_rejected, &new_sdp);
1854 JsepSessionDescription new_jdesc(SdpType::kOffer);
1855 EXPECT_TRUE(SdpDeserialize(new_sdp, &new_jdesc));
1856
1857 audio_desc_ = new AudioContentDescription(*audio_desc_);
1858 video_desc_ = new VideoContentDescription(*video_desc_);
1859 desc_.RemoveContentByName(kAudioContentName);
1860 desc_.RemoveContentByName(kVideoContentName);
1861 desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, audio_rejected,
1862 absl::WrapUnique(audio_desc_));
1863 desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, video_rejected,
1864 absl::WrapUnique(video_desc_));
1865 SetIceUfragPwd(kAudioContentName, audio_rejected ? "" : kUfragVoice,
1866 audio_rejected ? "" : kPwdVoice);
1867 SetIceUfragPwd(kVideoContentName, video_rejected ? "" : kUfragVideo,
1868 video_rejected ? "" : kPwdVideo);
1869 JsepSessionDescription jdesc_no_candidates(kDummyType);
1870 if (!jdesc_no_candidates.Initialize(desc_.Clone(), jdesc_.session_id(),
1871 jdesc_.session_version())) {
1872 return false;
1873 }
1874 EXPECT_TRUE(CompareSessionDescription(jdesc_no_candidates, new_jdesc));
1875 return true;
1876 }
1877
TestDeserializeExtmap(bool session_level,bool media_level,bool encrypted)1878 void TestDeserializeExtmap(bool session_level,
1879 bool media_level,
1880 bool encrypted) {
1881 AddExtmap(encrypted);
1882 JsepSessionDescription new_jdesc(SdpType::kOffer);
1883 ASSERT_TRUE(new_jdesc.Initialize(desc_.Clone(), jdesc_.session_id(),
1884 jdesc_.session_version()));
1885 JsepSessionDescription jdesc_with_extmap(SdpType::kOffer);
1886 std::string sdp_with_extmap = kSdpString;
1887 if (session_level) {
1888 InjectAfter(kSessionTime,
1889 encrypted ? kExtmapWithDirectionAndAttributeEncrypted
1890 : kExtmapWithDirectionAndAttribute,
1891 &sdp_with_extmap);
1892 }
1893 if (media_level) {
1894 InjectAfter(kAttributeIcePwdVoice,
1895 encrypted ? kExtmapWithDirectionAndAttributeEncrypted
1896 : kExtmapWithDirectionAndAttribute,
1897 &sdp_with_extmap);
1898 InjectAfter(kAttributeIcePwdVideo,
1899 encrypted ? kExtmapWithDirectionAndAttributeEncrypted
1900 : kExtmapWithDirectionAndAttribute,
1901 &sdp_with_extmap);
1902 }
1903 // The extmap can't be present at the same time in both session level and
1904 // media level.
1905 if (session_level && media_level) {
1906 SdpParseError error;
1907 EXPECT_FALSE(
1908 webrtc::SdpDeserialize(sdp_with_extmap, &jdesc_with_extmap, &error));
1909 EXPECT_NE(std::string::npos, error.description.find("a=extmap"));
1910 } else {
1911 EXPECT_TRUE(SdpDeserialize(sdp_with_extmap, &jdesc_with_extmap));
1912 EXPECT_TRUE(CompareSessionDescription(jdesc_with_extmap, new_jdesc));
1913 }
1914 }
1915
VerifyCodecParameter(const cricket::CodecParameterMap & params,const std::string & name,int expected_value)1916 void VerifyCodecParameter(const cricket::CodecParameterMap& params,
1917 const std::string& name,
1918 int expected_value) {
1919 cricket::CodecParameterMap::const_iterator found = params.find(name);
1920 ASSERT_TRUE(found != params.end());
1921 EXPECT_EQ(found->second, rtc::ToString(expected_value));
1922 }
1923
TestDeserializeCodecParams(const CodecParams & params,JsepSessionDescription * jdesc_output)1924 void TestDeserializeCodecParams(const CodecParams& params,
1925 JsepSessionDescription* jdesc_output) {
1926 std::string sdp =
1927 "v=0\r\n"
1928 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
1929 "s=-\r\n"
1930 "t=0 0\r\n"
1931 // Include semantics for WebRTC Media Streams since it is supported by
1932 // this parser, and will be added to the SDP when serializing a session
1933 // description.
1934 "a=msid-semantic: WMS\r\n"
1935 // Pl type 111 preferred.
1936 "m=audio 9 RTP/SAVPF 111 104 103 105\r\n"
1937 // Pltype 111 listed before 103 and 104 in the map.
1938 "a=rtpmap:111 opus/48000/2\r\n"
1939 // Pltype 103 listed before 104.
1940 "a=rtpmap:103 ISAC/16000\r\n"
1941 "a=rtpmap:104 ISAC/32000\r\n"
1942 "a=rtpmap:105 telephone-event/8000\r\n"
1943 "a=fmtp:105 0-15,66,70\r\n"
1944 "a=fmtp:111 ";
1945 std::ostringstream os;
1946 os << "minptime=" << params.min_ptime << "; stereo=" << params.stereo
1947 << "; sprop-stereo=" << params.sprop_stereo
1948 << "; useinbandfec=" << params.useinband
1949 << "; maxaveragebitrate=" << params.maxaveragebitrate
1950 << "\r\n"
1951 "a=ptime:"
1952 << params.ptime
1953 << "\r\n"
1954 "a=maxptime:"
1955 << params.max_ptime << "\r\n";
1956 sdp += os.str();
1957
1958 os.clear();
1959 os.str("");
1960 // Pl type 100 preferred.
1961 os << "m=video 9 RTP/SAVPF 99 95\r\n"
1962 "a=rtpmap:99 VP8/90000\r\n"
1963 "a=rtpmap:95 RTX/90000\r\n"
1964 "a=fmtp:95 apt=99;\r\n";
1965 sdp += os.str();
1966
1967 // Deserialize
1968 SdpParseError error;
1969 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, jdesc_output, &error));
1970
1971 const AudioContentDescription* acd =
1972 GetFirstAudioContentDescription(jdesc_output->description());
1973 ASSERT_TRUE(acd);
1974 ASSERT_FALSE(acd->codecs().empty());
1975 cricket::AudioCodec opus = acd->codecs()[0];
1976 EXPECT_EQ("opus", opus.name);
1977 EXPECT_EQ(111, opus.id);
1978 VerifyCodecParameter(opus.params, "minptime", params.min_ptime);
1979 VerifyCodecParameter(opus.params, "stereo", params.stereo);
1980 VerifyCodecParameter(opus.params, "sprop-stereo", params.sprop_stereo);
1981 VerifyCodecParameter(opus.params, "useinbandfec", params.useinband);
1982 VerifyCodecParameter(opus.params, "maxaveragebitrate",
1983 params.maxaveragebitrate);
1984 for (size_t i = 0; i < acd->codecs().size(); ++i) {
1985 cricket::AudioCodec codec = acd->codecs()[i];
1986 VerifyCodecParameter(codec.params, "ptime", params.ptime);
1987 VerifyCodecParameter(codec.params, "maxptime", params.max_ptime);
1988 }
1989
1990 cricket::AudioCodec dtmf = acd->codecs()[3];
1991 EXPECT_EQ("telephone-event", dtmf.name);
1992 EXPECT_EQ(105, dtmf.id);
1993 EXPECT_EQ(3u,
1994 dtmf.params.size()); // ptime and max_ptime count as parameters.
1995 EXPECT_EQ(dtmf.params.begin()->first, "");
1996 EXPECT_EQ(dtmf.params.begin()->second, "0-15,66,70");
1997
1998 const VideoContentDescription* vcd =
1999 GetFirstVideoContentDescription(jdesc_output->description());
2000 ASSERT_TRUE(vcd);
2001 ASSERT_FALSE(vcd->codecs().empty());
2002 cricket::VideoCodec vp8 = vcd->codecs()[0];
2003 EXPECT_EQ("VP8", vp8.name);
2004 EXPECT_EQ(99, vp8.id);
2005 cricket::VideoCodec rtx = vcd->codecs()[1];
2006 EXPECT_EQ("RTX", rtx.name);
2007 EXPECT_EQ(95, rtx.id);
2008 VerifyCodecParameter(rtx.params, "apt", vp8.id);
2009 }
2010
TestDeserializeRtcpFb(JsepSessionDescription * jdesc_output,bool use_wildcard)2011 void TestDeserializeRtcpFb(JsepSessionDescription* jdesc_output,
2012 bool use_wildcard) {
2013 std::string sdp_session_and_audio =
2014 "v=0\r\n"
2015 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
2016 "s=-\r\n"
2017 "t=0 0\r\n"
2018 // Include semantics for WebRTC Media Streams since it is supported by
2019 // this parser, and will be added to the SDP when serializing a session
2020 // description.
2021 "a=msid-semantic: WMS\r\n"
2022 "m=audio 9 RTP/SAVPF 111\r\n"
2023 "a=rtpmap:111 opus/48000/2\r\n";
2024 std::string sdp_video =
2025 "m=video 3457 RTP/SAVPF 101\r\n"
2026 "a=rtpmap:101 VP8/90000\r\n"
2027 "a=rtcp-fb:101 goog-lntf\r\n"
2028 "a=rtcp-fb:101 nack\r\n"
2029 "a=rtcp-fb:101 nack pli\r\n"
2030 "a=rtcp-fb:101 goog-remb\r\n";
2031 std::ostringstream os;
2032 os << sdp_session_and_audio;
2033 os << "a=rtcp-fb:" << (use_wildcard ? "*" : "111") << " nack\r\n";
2034 os << sdp_video;
2035 os << "a=rtcp-fb:" << (use_wildcard ? "*" : "101") << " ccm fir\r\n";
2036 std::string sdp = os.str();
2037 // Deserialize
2038 SdpParseError error;
2039 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, jdesc_output, &error));
2040 const AudioContentDescription* acd =
2041 GetFirstAudioContentDescription(jdesc_output->description());
2042 ASSERT_TRUE(acd);
2043 ASSERT_FALSE(acd->codecs().empty());
2044 cricket::AudioCodec opus = acd->codecs()[0];
2045 EXPECT_EQ(111, opus.id);
2046 EXPECT_TRUE(opus.HasFeedbackParam(cricket::FeedbackParam(
2047 cricket::kRtcpFbParamNack, cricket::kParamValueEmpty)));
2048
2049 const VideoContentDescription* vcd =
2050 GetFirstVideoContentDescription(jdesc_output->description());
2051 ASSERT_TRUE(vcd);
2052 ASSERT_FALSE(vcd->codecs().empty());
2053 cricket::VideoCodec vp8 = vcd->codecs()[0];
2054 EXPECT_STREQ(webrtc::JsepSessionDescription::kDefaultVideoCodecName,
2055 vp8.name.c_str());
2056 EXPECT_EQ(101, vp8.id);
2057 EXPECT_TRUE(vp8.HasFeedbackParam(cricket::FeedbackParam(
2058 cricket::kRtcpFbParamLntf, cricket::kParamValueEmpty)));
2059 EXPECT_TRUE(vp8.HasFeedbackParam(cricket::FeedbackParam(
2060 cricket::kRtcpFbParamNack, cricket::kParamValueEmpty)));
2061 EXPECT_TRUE(vp8.HasFeedbackParam(cricket::FeedbackParam(
2062 cricket::kRtcpFbParamNack, cricket::kRtcpFbNackParamPli)));
2063 EXPECT_TRUE(vp8.HasFeedbackParam(cricket::FeedbackParam(
2064 cricket::kRtcpFbParamRemb, cricket::kParamValueEmpty)));
2065 EXPECT_TRUE(vp8.HasFeedbackParam(cricket::FeedbackParam(
2066 cricket::kRtcpFbParamCcm, cricket::kRtcpFbCcmParamFir)));
2067 }
2068
2069 // Two SDP messages can mean the same thing but be different strings, e.g.
2070 // some of the lines can be serialized in different order.
2071 // However, a deserialized description can be compared field by field and has
2072 // no order. If deserializer has already been tested, serializing then
2073 // deserializing and comparing JsepSessionDescription will test
2074 // the serializer sufficiently.
TestSerialize(const JsepSessionDescription & jdesc)2075 void TestSerialize(const JsepSessionDescription& jdesc) {
2076 std::string message = webrtc::SdpSerialize(jdesc);
2077 JsepSessionDescription jdesc_output_des(kDummyType);
2078 SdpParseError error;
2079 EXPECT_TRUE(webrtc::SdpDeserialize(message, &jdesc_output_des, &error));
2080 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output_des));
2081 }
2082
2083 // Calling 'Initialize' with a copy of the inner SessionDescription will
2084 // create a copy of the JsepSessionDescription without candidates. The
2085 // 'connection address' field, previously set from the candidates, must also
2086 // be reset.
MakeDescriptionWithoutCandidates(JsepSessionDescription * jdesc)2087 void MakeDescriptionWithoutCandidates(JsepSessionDescription* jdesc) {
2088 rtc::SocketAddress audio_addr("0.0.0.0", 9);
2089 rtc::SocketAddress video_addr("0.0.0.0", 9);
2090 audio_desc_->set_connection_address(audio_addr);
2091 video_desc_->set_connection_address(video_addr);
2092 ASSERT_TRUE(jdesc->Initialize(desc_.Clone(), kSessionId, kSessionVersion));
2093 }
2094
2095 protected:
2096 SessionDescription desc_;
2097 AudioContentDescription* audio_desc_;
2098 VideoContentDescription* video_desc_;
2099 RtpDataContentDescription* data_desc_;
2100 SctpDataContentDescription* sctp_desc_;
2101 Candidates candidates_;
2102 std::unique_ptr<IceCandidateInterface> jcandidate_;
2103 JsepSessionDescription jdesc_;
2104 };
2105
TestMismatch(const std::string & string1,const std::string & string2)2106 void TestMismatch(const std::string& string1, const std::string& string2) {
2107 int position = 0;
2108 for (size_t i = 0; i < string1.length() && i < string2.length(); ++i) {
2109 if (string1.c_str()[i] != string2.c_str()[i]) {
2110 position = static_cast<int>(i);
2111 break;
2112 }
2113 }
2114 EXPECT_EQ(0, position) << "Strings mismatch at the " << position
2115 << " character\n"
2116 " 1: "
2117 << string1.substr(position, 20)
2118 << "\n"
2119 " 2: "
2120 << string2.substr(position, 20) << "\n";
2121 }
2122
TEST_F(WebRtcSdpTest,SerializeSessionDescription)2123 TEST_F(WebRtcSdpTest, SerializeSessionDescription) {
2124 // SessionDescription with desc and candidates.
2125 std::string message = webrtc::SdpSerialize(jdesc_);
2126 TestMismatch(std::string(kSdpFullString), message);
2127 }
2128
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionEmpty)2129 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionEmpty) {
2130 JsepSessionDescription jdesc_empty(kDummyType);
2131 EXPECT_EQ("", webrtc::SdpSerialize(jdesc_empty));
2132 }
2133
2134 // This tests serialization of SDP with a=crypto and a=fingerprint, as would be
2135 // the case in a DTLS offer.
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithFingerprint)2136 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithFingerprint) {
2137 AddFingerprint();
2138 JsepSessionDescription jdesc_with_fingerprint(kDummyType);
2139 MakeDescriptionWithoutCandidates(&jdesc_with_fingerprint);
2140 std::string message = webrtc::SdpSerialize(jdesc_with_fingerprint);
2141
2142 std::string sdp_with_fingerprint = kSdpString;
2143 InjectAfter(kAttributeIcePwdVoice, kFingerprint, &sdp_with_fingerprint);
2144 InjectAfter(kAttributeIcePwdVideo, kFingerprint, &sdp_with_fingerprint);
2145
2146 EXPECT_EQ(sdp_with_fingerprint, message);
2147 }
2148
2149 // This tests serialization of SDP with a=fingerprint with no a=crypto, as would
2150 // be the case in a DTLS answer.
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithFingerprintNoCryptos)2151 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithFingerprintNoCryptos) {
2152 AddFingerprint();
2153 RemoveCryptos();
2154 JsepSessionDescription jdesc_with_fingerprint(kDummyType);
2155 MakeDescriptionWithoutCandidates(&jdesc_with_fingerprint);
2156 std::string message = webrtc::SdpSerialize(jdesc_with_fingerprint);
2157
2158 std::string sdp_with_fingerprint = kSdpString;
2159 Replace(kAttributeCryptoVoice, "", &sdp_with_fingerprint);
2160 Replace(kAttributeCryptoVideo, "", &sdp_with_fingerprint);
2161 InjectAfter(kAttributeIcePwdVoice, kFingerprint, &sdp_with_fingerprint);
2162 InjectAfter(kAttributeIcePwdVideo, kFingerprint, &sdp_with_fingerprint);
2163
2164 EXPECT_EQ(sdp_with_fingerprint, message);
2165 }
2166
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithoutCandidates)2167 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithoutCandidates) {
2168 // JsepSessionDescription with desc but without candidates.
2169 JsepSessionDescription jdesc_no_candidates(kDummyType);
2170 MakeDescriptionWithoutCandidates(&jdesc_no_candidates);
2171 std::string message = webrtc::SdpSerialize(jdesc_no_candidates);
2172 EXPECT_EQ(std::string(kSdpString), message);
2173 }
2174
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithBundle)2175 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithBundle) {
2176 ContentGroup group(cricket::GROUP_TYPE_BUNDLE);
2177 group.AddContentName(kAudioContentName);
2178 group.AddContentName(kVideoContentName);
2179 desc_.AddGroup(group);
2180 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
2181 jdesc_.session_version()));
2182 std::string message = webrtc::SdpSerialize(jdesc_);
2183 std::string sdp_with_bundle = kSdpFullString;
2184 InjectAfter(kSessionTime,
2185 "a=group:BUNDLE audio_content_name video_content_name\r\n",
2186 &sdp_with_bundle);
2187 EXPECT_EQ(sdp_with_bundle, message);
2188 }
2189
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithBandwidth)2190 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithBandwidth) {
2191 VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_);
2192 vcd->set_bandwidth(100 * 1000 + 755); // Integer division will drop the 755.
2193 vcd->set_bandwidth_type("AS");
2194 AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_);
2195 acd->set_bandwidth(555);
2196 acd->set_bandwidth_type("TIAS");
2197 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
2198 jdesc_.session_version()));
2199 std::string message = webrtc::SdpSerialize(jdesc_);
2200 std::string sdp_with_bandwidth = kSdpFullString;
2201 InjectAfter("c=IN IP4 74.125.224.39\r\n", "b=AS:100\r\n",
2202 &sdp_with_bandwidth);
2203 InjectAfter("c=IN IP4 74.125.127.126\r\n", "b=TIAS:555\r\n",
2204 &sdp_with_bandwidth);
2205 EXPECT_EQ(sdp_with_bandwidth, message);
2206 }
2207
2208 // Should default to b=AS if bandwidth_type isn't set.
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithMissingBandwidthType)2209 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithMissingBandwidthType) {
2210 VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_);
2211 vcd->set_bandwidth(100 * 1000);
2212 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
2213 jdesc_.session_version()));
2214 std::string message = webrtc::SdpSerialize(jdesc_);
2215 std::string sdp_with_bandwidth = kSdpFullString;
2216 InjectAfter("c=IN IP4 74.125.224.39\r\n", "b=AS:100\r\n",
2217 &sdp_with_bandwidth);
2218 EXPECT_EQ(sdp_with_bandwidth, message);
2219 }
2220
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithIceOptions)2221 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithIceOptions) {
2222 std::vector<std::string> transport_options;
2223 transport_options.push_back(kIceOption1);
2224 transport_options.push_back(kIceOption3);
2225 AddIceOptions(kAudioContentName, transport_options);
2226 transport_options.clear();
2227 transport_options.push_back(kIceOption2);
2228 transport_options.push_back(kIceOption3);
2229 AddIceOptions(kVideoContentName, transport_options);
2230 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
2231 jdesc_.session_version()));
2232 std::string message = webrtc::SdpSerialize(jdesc_);
2233 std::string sdp_with_ice_options = kSdpFullString;
2234 InjectAfter(kAttributeIcePwdVoice, "a=ice-options:iceoption1 iceoption3\r\n",
2235 &sdp_with_ice_options);
2236 InjectAfter(kAttributeIcePwdVideo, "a=ice-options:iceoption2 iceoption3\r\n",
2237 &sdp_with_ice_options);
2238 EXPECT_EQ(sdp_with_ice_options, message);
2239 }
2240
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithRecvOnlyContent)2241 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithRecvOnlyContent) {
2242 EXPECT_TRUE(TestSerializeDirection(RtpTransceiverDirection::kRecvOnly));
2243 }
2244
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithSendOnlyContent)2245 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithSendOnlyContent) {
2246 EXPECT_TRUE(TestSerializeDirection(RtpTransceiverDirection::kSendOnly));
2247 }
2248
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithInactiveContent)2249 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithInactiveContent) {
2250 EXPECT_TRUE(TestSerializeDirection(RtpTransceiverDirection::kInactive));
2251 }
2252
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithAudioRejected)2253 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithAudioRejected) {
2254 EXPECT_TRUE(TestSerializeRejected(true, false));
2255 }
2256
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithVideoRejected)2257 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithVideoRejected) {
2258 EXPECT_TRUE(TestSerializeRejected(false, true));
2259 }
2260
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithAudioVideoRejected)2261 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithAudioVideoRejected) {
2262 EXPECT_TRUE(TestSerializeRejected(true, true));
2263 }
2264
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithRtpDataChannel)2265 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithRtpDataChannel) {
2266 AddRtpDataChannel();
2267 JsepSessionDescription jsep_desc(kDummyType);
2268
2269 MakeDescriptionWithoutCandidates(&jsep_desc);
2270 std::string message = webrtc::SdpSerialize(jsep_desc);
2271
2272 std::string expected_sdp = kSdpString;
2273 expected_sdp.append(kSdpRtpDataChannelString);
2274 EXPECT_EQ(expected_sdp, message);
2275 }
2276
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithSctpDataChannel)2277 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithSctpDataChannel) {
2278 bool use_sctpmap = true;
2279 AddSctpDataChannel(use_sctpmap);
2280 JsepSessionDescription jsep_desc(kDummyType);
2281
2282 MakeDescriptionWithoutCandidates(&jsep_desc);
2283 std::string message = webrtc::SdpSerialize(jsep_desc);
2284
2285 std::string expected_sdp = kSdpString;
2286 expected_sdp.append(kSdpSctpDataChannelString);
2287 EXPECT_EQ(message, expected_sdp);
2288 }
2289
MutateJsepSctpPort(JsepSessionDescription * jdesc,const SessionDescription & desc,int port)2290 void MutateJsepSctpPort(JsepSessionDescription* jdesc,
2291 const SessionDescription& desc,
2292 int port) {
2293 // Take our pre-built session description and change the SCTP port.
2294 std::unique_ptr<cricket::SessionDescription> mutant = desc.Clone();
2295 SctpDataContentDescription* dcdesc =
2296 mutant->GetContentDescriptionByName(kDataContentName)->as_sctp();
2297 dcdesc->set_port(port);
2298 ASSERT_TRUE(
2299 jdesc->Initialize(std::move(mutant), kSessionId, kSessionVersion));
2300 }
2301
TEST_F(WebRtcSdpTest,SerializeWithSctpDataChannelAndNewPort)2302 TEST_F(WebRtcSdpTest, SerializeWithSctpDataChannelAndNewPort) {
2303 bool use_sctpmap = true;
2304 AddSctpDataChannel(use_sctpmap);
2305 JsepSessionDescription jsep_desc(kDummyType);
2306 MakeDescriptionWithoutCandidates(&jsep_desc);
2307
2308 const int kNewPort = 1234;
2309 MutateJsepSctpPort(&jsep_desc, desc_, kNewPort);
2310
2311 std::string message = webrtc::SdpSerialize(jsep_desc);
2312
2313 std::string expected_sdp = kSdpString;
2314 expected_sdp.append(kSdpSctpDataChannelString);
2315
2316 absl::StrReplaceAll(
2317 {{rtc::ToString(kDefaultSctpPort), rtc::ToString(kNewPort)}},
2318 &expected_sdp);
2319
2320 EXPECT_EQ(expected_sdp, message);
2321 }
2322
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithDataChannelAndBandwidth)2323 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithDataChannelAndBandwidth) {
2324 JsepSessionDescription jsep_desc(kDummyType);
2325 AddRtpDataChannel();
2326 data_desc_->set_bandwidth(100 * 1000);
2327 data_desc_->set_bandwidth_type("AS");
2328 MakeDescriptionWithoutCandidates(&jsep_desc);
2329 std::string message = webrtc::SdpSerialize(jsep_desc);
2330
2331 std::string expected_sdp = kSdpString;
2332 expected_sdp.append(kSdpRtpDataChannelString);
2333 // Serializing data content shouldn't ignore bandwidth settings.
2334 InjectAfter("m=application 9 RTP/SAVPF 101\r\nc=IN IP4 0.0.0.0\r\n",
2335 "b=AS:100\r\n", &expected_sdp);
2336 EXPECT_EQ(expected_sdp, message);
2337 }
2338
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithExtmapAllowMixed)2339 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithExtmapAllowMixed) {
2340 jdesc_.description()->set_extmap_allow_mixed(true);
2341 TestSerialize(jdesc_);
2342 }
2343
TEST_F(WebRtcSdpTest,SerializeMediaContentDescriptionWithExtmapAllowMixed)2344 TEST_F(WebRtcSdpTest, SerializeMediaContentDescriptionWithExtmapAllowMixed) {
2345 cricket::MediaContentDescription* video_desc =
2346 jdesc_.description()->GetContentDescriptionByName(kVideoContentName);
2347 ASSERT_TRUE(video_desc);
2348 cricket::MediaContentDescription* audio_desc =
2349 jdesc_.description()->GetContentDescriptionByName(kAudioContentName);
2350 ASSERT_TRUE(audio_desc);
2351 video_desc->set_extmap_allow_mixed_enum(
2352 cricket::MediaContentDescription::kMedia);
2353 audio_desc->set_extmap_allow_mixed_enum(
2354 cricket::MediaContentDescription::kMedia);
2355 TestSerialize(jdesc_);
2356 }
2357
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithExtmap)2358 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithExtmap) {
2359 bool encrypted = false;
2360 AddExtmap(encrypted);
2361 JsepSessionDescription desc_with_extmap(kDummyType);
2362 MakeDescriptionWithoutCandidates(&desc_with_extmap);
2363 std::string message = webrtc::SdpSerialize(desc_with_extmap);
2364
2365 std::string sdp_with_extmap = kSdpString;
2366 InjectAfter("a=mid:audio_content_name\r\n", kExtmap, &sdp_with_extmap);
2367 InjectAfter("a=mid:video_content_name\r\n", kExtmap, &sdp_with_extmap);
2368
2369 EXPECT_EQ(sdp_with_extmap, message);
2370 }
2371
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithExtmapEncrypted)2372 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithExtmapEncrypted) {
2373 bool encrypted = true;
2374 AddExtmap(encrypted);
2375 JsepSessionDescription desc_with_extmap(kDummyType);
2376 ASSERT_TRUE(
2377 desc_with_extmap.Initialize(desc_.Clone(), kSessionId, kSessionVersion));
2378 TestSerialize(desc_with_extmap);
2379 }
2380
TEST_F(WebRtcSdpTest,SerializeCandidates)2381 TEST_F(WebRtcSdpTest, SerializeCandidates) {
2382 std::string message = webrtc::SdpSerializeCandidate(*jcandidate_);
2383 EXPECT_EQ(std::string(kRawCandidate), message);
2384
2385 Candidate candidate_with_ufrag(candidates_.front());
2386 candidate_with_ufrag.set_username("ABC");
2387 jcandidate_.reset(new JsepIceCandidate(std::string("audio_content_name"), 0,
2388 candidate_with_ufrag));
2389 message = webrtc::SdpSerializeCandidate(*jcandidate_);
2390 EXPECT_EQ(std::string(kRawCandidate) + " ufrag ABC", message);
2391
2392 Candidate candidate_with_network_info(candidates_.front());
2393 candidate_with_network_info.set_network_id(1);
2394 jcandidate_.reset(new JsepIceCandidate(std::string("audio"), 0,
2395 candidate_with_network_info));
2396 message = webrtc::SdpSerializeCandidate(*jcandidate_);
2397 EXPECT_EQ(std::string(kRawCandidate) + " network-id 1", message);
2398 candidate_with_network_info.set_network_cost(999);
2399 jcandidate_.reset(new JsepIceCandidate(std::string("audio"), 0,
2400 candidate_with_network_info));
2401 message = webrtc::SdpSerializeCandidate(*jcandidate_);
2402 EXPECT_EQ(std::string(kRawCandidate) + " network-id 1 network-cost 999",
2403 message);
2404 }
2405
TEST_F(WebRtcSdpTest,SerializeHostnameCandidate)2406 TEST_F(WebRtcSdpTest, SerializeHostnameCandidate) {
2407 rtc::SocketAddress address("a.test", 1234);
2408 cricket::Candidate candidate(
2409 cricket::ICE_CANDIDATE_COMPONENT_RTP, "udp", address, kCandidatePriority,
2410 "", "", LOCAL_PORT_TYPE, kCandidateGeneration, kCandidateFoundation1);
2411 JsepIceCandidate jcandidate(std::string("audio_content_name"), 0, candidate);
2412 std::string message = webrtc::SdpSerializeCandidate(jcandidate);
2413 EXPECT_EQ(std::string(kRawHostnameCandidate), message);
2414 }
2415
TEST_F(WebRtcSdpTest,SerializeTcpCandidates)2416 TEST_F(WebRtcSdpTest, SerializeTcpCandidates) {
2417 Candidate candidate(ICE_CANDIDATE_COMPONENT_RTP, "tcp",
2418 rtc::SocketAddress("192.168.1.5", 9), kCandidatePriority,
2419 "", "", LOCAL_PORT_TYPE, kCandidateGeneration,
2420 kCandidateFoundation1);
2421 candidate.set_tcptype(cricket::TCPTYPE_ACTIVE_STR);
2422 std::unique_ptr<IceCandidateInterface> jcandidate(
2423 new JsepIceCandidate(std::string("audio_content_name"), 0, candidate));
2424
2425 std::string message = webrtc::SdpSerializeCandidate(*jcandidate);
2426 EXPECT_EQ(std::string(kSdpTcpActiveCandidate), message);
2427 }
2428
2429 // Test serializing a TCP candidate that came in with a missing tcptype. This
2430 // shouldn't happen according to the spec, but our implementation has been
2431 // accepting this for quite some time, treating it as a passive candidate.
2432 //
2433 // So, we should be able to at least convert such candidates to and from SDP.
2434 // See: bugs.webrtc.org/11423
TEST_F(WebRtcSdpTest,ParseTcpCandidateWithoutTcptype)2435 TEST_F(WebRtcSdpTest, ParseTcpCandidateWithoutTcptype) {
2436 std::string missing_tcptype =
2437 "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9999 typ host";
2438 JsepIceCandidate jcandidate(kDummyMid, kDummyIndex);
2439 EXPECT_TRUE(SdpDeserializeCandidate(missing_tcptype, &jcandidate));
2440
2441 EXPECT_EQ(std::string(cricket::TCPTYPE_PASSIVE_STR),
2442 jcandidate.candidate().tcptype());
2443 }
2444
TEST_F(WebRtcSdpTest,ParseSslTcpCandidate)2445 TEST_F(WebRtcSdpTest, ParseSslTcpCandidate) {
2446 std::string ssltcp =
2447 "candidate:a0+B/1 1 ssltcp 2130706432 192.168.1.5 9999 typ host tcptype "
2448 "passive";
2449 JsepIceCandidate jcandidate(kDummyMid, kDummyIndex);
2450 EXPECT_TRUE(SdpDeserializeCandidate(ssltcp, &jcandidate));
2451
2452 EXPECT_EQ(std::string("ssltcp"), jcandidate.candidate().protocol());
2453 }
2454
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionWithH264)2455 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithH264) {
2456 cricket::VideoCodec h264_codec("H264");
2457 h264_codec.SetParam("profile-level-id", "42e01f");
2458 h264_codec.SetParam("level-asymmetry-allowed", "1");
2459 h264_codec.SetParam("packetization-mode", "1");
2460 video_desc_->AddCodec(h264_codec);
2461
2462 jdesc_.Initialize(desc_.Clone(), kSessionId, kSessionVersion);
2463
2464 std::string message = webrtc::SdpSerialize(jdesc_);
2465 size_t after_pt = message.find(" H264/90000");
2466 ASSERT_NE(after_pt, std::string::npos);
2467 size_t before_pt = message.rfind("a=rtpmap:", after_pt);
2468 ASSERT_NE(before_pt, std::string::npos);
2469 before_pt += strlen("a=rtpmap:");
2470 std::string pt = message.substr(before_pt, after_pt - before_pt);
2471 // TODO(hta): Check if payload type |pt| occurs in the m=video line.
2472 std::string to_find = "a=fmtp:" + pt + " ";
2473 size_t fmtp_pos = message.find(to_find);
2474 ASSERT_NE(std::string::npos, fmtp_pos) << "Failed to find " << to_find;
2475 size_t fmtp_endpos = message.find('\n', fmtp_pos);
2476 ASSERT_NE(std::string::npos, fmtp_endpos);
2477 std::string fmtp_value = message.substr(fmtp_pos, fmtp_endpos);
2478 EXPECT_NE(std::string::npos, fmtp_value.find("level-asymmetry-allowed=1"));
2479 EXPECT_NE(std::string::npos, fmtp_value.find("packetization-mode=1"));
2480 EXPECT_NE(std::string::npos, fmtp_value.find("profile-level-id=42e01f"));
2481 // Check that there are no spaces after semicolons.
2482 // https://bugs.webrtc.org/5793
2483 EXPECT_EQ(std::string::npos, fmtp_value.find("; "));
2484 }
2485
TEST_F(WebRtcSdpTest,DeserializeSessionDescription)2486 TEST_F(WebRtcSdpTest, DeserializeSessionDescription) {
2487 JsepSessionDescription jdesc(kDummyType);
2488 // Deserialize
2489 EXPECT_TRUE(SdpDeserialize(kSdpFullString, &jdesc));
2490 // Verify
2491 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc));
2492 }
2493
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithoutMline)2494 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutMline) {
2495 JsepSessionDescription jdesc(kDummyType);
2496 const char kSdpWithoutMline[] =
2497 "v=0\r\n"
2498 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
2499 "s=-\r\n"
2500 "t=0 0\r\n"
2501 "a=msid-semantic: WMS local_stream_1 local_stream_2\r\n";
2502 // Deserialize
2503 EXPECT_TRUE(SdpDeserialize(kSdpWithoutMline, &jdesc));
2504 EXPECT_EQ(0u, jdesc.description()->contents().size());
2505 }
2506
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithoutCarriageReturn)2507 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutCarriageReturn) {
2508 JsepSessionDescription jdesc(kDummyType);
2509 std::string sdp_without_carriage_return = kSdpFullString;
2510 Replace("\r\n", "\n", &sdp_without_carriage_return);
2511 // Deserialize
2512 EXPECT_TRUE(SdpDeserialize(sdp_without_carriage_return, &jdesc));
2513 // Verify
2514 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc));
2515 }
2516
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithoutCandidates)2517 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutCandidates) {
2518 // SessionDescription with desc but without candidates.
2519 JsepSessionDescription jdesc_no_candidates(kDummyType);
2520 ASSERT_TRUE(jdesc_no_candidates.Initialize(desc_.Clone(), kSessionId,
2521 kSessionVersion));
2522 JsepSessionDescription new_jdesc(kDummyType);
2523 EXPECT_TRUE(SdpDeserialize(kSdpString, &new_jdesc));
2524 EXPECT_TRUE(CompareSessionDescription(jdesc_no_candidates, new_jdesc));
2525 }
2526
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithoutRtpmap)2527 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutRtpmap) {
2528 static const char kSdpNoRtpmapString[] =
2529 "v=0\r\n"
2530 "o=- 11 22 IN IP4 127.0.0.1\r\n"
2531 "s=-\r\n"
2532 "t=0 0\r\n"
2533 "m=audio 49232 RTP/AVP 0 18 103\r\n"
2534 // Codec that doesn't appear in the m= line will be ignored.
2535 "a=rtpmap:104 ISAC/32000\r\n"
2536 // The rtpmap line for static payload codec is optional.
2537 "a=rtpmap:18 G729/16000\r\n"
2538 "a=rtpmap:103 ISAC/16000\r\n";
2539
2540 JsepSessionDescription jdesc(kDummyType);
2541 EXPECT_TRUE(SdpDeserialize(kSdpNoRtpmapString, &jdesc));
2542 cricket::AudioContentDescription* audio =
2543 cricket::GetFirstAudioContentDescription(jdesc.description());
2544 AudioCodecs ref_codecs;
2545 // The codecs in the AudioContentDescription should be in the same order as
2546 // the payload types (<fmt>s) on the m= line.
2547 ref_codecs.push_back(AudioCodec(0, "PCMU", 8000, 0, 1));
2548 ref_codecs.push_back(AudioCodec(18, "G729", 16000, 0, 1));
2549 ref_codecs.push_back(AudioCodec(103, "ISAC", 16000, 0, 1));
2550 EXPECT_EQ(ref_codecs, audio->codecs());
2551 }
2552
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithoutRtpmapButWithFmtp)2553 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutRtpmapButWithFmtp) {
2554 static const char kSdpNoRtpmapString[] =
2555 "v=0\r\n"
2556 "o=- 11 22 IN IP4 127.0.0.1\r\n"
2557 "s=-\r\n"
2558 "t=0 0\r\n"
2559 "m=audio 49232 RTP/AVP 18 103\r\n"
2560 "a=fmtp:18 annexb=yes\r\n"
2561 "a=rtpmap:103 ISAC/16000\r\n";
2562
2563 JsepSessionDescription jdesc(kDummyType);
2564 EXPECT_TRUE(SdpDeserialize(kSdpNoRtpmapString, &jdesc));
2565 cricket::AudioContentDescription* audio =
2566 cricket::GetFirstAudioContentDescription(jdesc.description());
2567
2568 cricket::AudioCodec g729 = audio->codecs()[0];
2569 EXPECT_EQ("G729", g729.name);
2570 EXPECT_EQ(8000, g729.clockrate);
2571 EXPECT_EQ(18, g729.id);
2572 cricket::CodecParameterMap::iterator found = g729.params.find("annexb");
2573 ASSERT_TRUE(found != g729.params.end());
2574 EXPECT_EQ(found->second, "yes");
2575
2576 cricket::AudioCodec isac = audio->codecs()[1];
2577 EXPECT_EQ("ISAC", isac.name);
2578 EXPECT_EQ(103, isac.id);
2579 EXPECT_EQ(16000, isac.clockrate);
2580 }
2581
2582 // Ensure that we can deserialize SDP with a=fingerprint properly.
TEST_F(WebRtcSdpTest,DeserializeJsepSessionDescriptionWithFingerprint)2583 TEST_F(WebRtcSdpTest, DeserializeJsepSessionDescriptionWithFingerprint) {
2584 // Add a DTLS a=fingerprint attribute to our session description.
2585 AddFingerprint();
2586 JsepSessionDescription new_jdesc(kDummyType);
2587 ASSERT_TRUE(new_jdesc.Initialize(desc_.Clone(), jdesc_.session_id(),
2588 jdesc_.session_version()));
2589
2590 JsepSessionDescription jdesc_with_fingerprint(kDummyType);
2591 std::string sdp_with_fingerprint = kSdpString;
2592 InjectAfter(kAttributeIcePwdVoice, kFingerprint, &sdp_with_fingerprint);
2593 InjectAfter(kAttributeIcePwdVideo, kFingerprint, &sdp_with_fingerprint);
2594 EXPECT_TRUE(SdpDeserialize(sdp_with_fingerprint, &jdesc_with_fingerprint));
2595 EXPECT_TRUE(CompareSessionDescription(jdesc_with_fingerprint, new_jdesc));
2596 }
2597
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithBundle)2598 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithBundle) {
2599 JsepSessionDescription jdesc_with_bundle(kDummyType);
2600 std::string sdp_with_bundle = kSdpFullString;
2601 InjectAfter(kSessionTime,
2602 "a=group:BUNDLE audio_content_name video_content_name\r\n",
2603 &sdp_with_bundle);
2604 EXPECT_TRUE(SdpDeserialize(sdp_with_bundle, &jdesc_with_bundle));
2605 ContentGroup group(cricket::GROUP_TYPE_BUNDLE);
2606 group.AddContentName(kAudioContentName);
2607 group.AddContentName(kVideoContentName);
2608 desc_.AddGroup(group);
2609 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
2610 jdesc_.session_version()));
2611 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_bundle));
2612 }
2613
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithBandwidth)2614 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithBandwidth) {
2615 JsepSessionDescription jdesc_with_bandwidth(kDummyType);
2616 std::string sdp_with_bandwidth = kSdpFullString;
2617 InjectAfter("a=mid:video_content_name\r\na=sendrecv\r\n", "b=AS:100\r\n",
2618 &sdp_with_bandwidth);
2619 InjectAfter("a=mid:audio_content_name\r\na=sendrecv\r\n", "b=AS:50\r\n",
2620 &sdp_with_bandwidth);
2621 EXPECT_TRUE(SdpDeserialize(sdp_with_bandwidth, &jdesc_with_bandwidth));
2622 VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_);
2623 vcd->set_bandwidth(100 * 1000);
2624 AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_);
2625 acd->set_bandwidth(50 * 1000);
2626 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
2627 jdesc_.session_version()));
2628 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_bandwidth));
2629 }
2630
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithTiasBandwidth)2631 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithTiasBandwidth) {
2632 JsepSessionDescription jdesc_with_bandwidth(kDummyType);
2633 std::string sdp_with_bandwidth = kSdpFullString;
2634 InjectAfter("a=mid:video_content_name\r\na=sendrecv\r\n", "b=TIAS:100000\r\n",
2635 &sdp_with_bandwidth);
2636 InjectAfter("a=mid:audio_content_name\r\na=sendrecv\r\n", "b=TIAS:50000\r\n",
2637 &sdp_with_bandwidth);
2638 EXPECT_TRUE(SdpDeserialize(sdp_with_bandwidth, &jdesc_with_bandwidth));
2639 VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_);
2640 vcd->set_bandwidth(100 * 1000);
2641 AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_);
2642 acd->set_bandwidth(50 * 1000);
2643 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
2644 jdesc_.session_version()));
2645 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_bandwidth));
2646 }
2647
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithUnknownBandwidthModifier)2648 TEST_F(WebRtcSdpTest,
2649 DeserializeSessionDescriptionWithUnknownBandwidthModifier) {
2650 JsepSessionDescription jdesc_with_bandwidth(kDummyType);
2651 std::string sdp_with_bandwidth = kSdpFullString;
2652 InjectAfter("a=mid:video_content_name\r\na=sendrecv\r\n",
2653 "b=unknown:100000\r\n", &sdp_with_bandwidth);
2654 InjectAfter("a=mid:audio_content_name\r\na=sendrecv\r\n",
2655 "b=unknown:50000\r\n", &sdp_with_bandwidth);
2656 EXPECT_TRUE(SdpDeserialize(sdp_with_bandwidth, &jdesc_with_bandwidth));
2657 VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_);
2658 vcd->set_bandwidth(-1);
2659 AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_);
2660 acd->set_bandwidth(-1);
2661 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
2662 jdesc_.session_version()));
2663 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_bandwidth));
2664 }
2665
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithIceOptions)2666 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithIceOptions) {
2667 JsepSessionDescription jdesc_with_ice_options(kDummyType);
2668 std::string sdp_with_ice_options = kSdpFullString;
2669 InjectAfter(kSessionTime, "a=ice-options:iceoption3\r\n",
2670 &sdp_with_ice_options);
2671 InjectAfter(kAttributeIcePwdVoice, "a=ice-options:iceoption1\r\n",
2672 &sdp_with_ice_options);
2673 InjectAfter(kAttributeIcePwdVideo, "a=ice-options:iceoption2\r\n",
2674 &sdp_with_ice_options);
2675 EXPECT_TRUE(SdpDeserialize(sdp_with_ice_options, &jdesc_with_ice_options));
2676 std::vector<std::string> transport_options;
2677 transport_options.push_back(kIceOption3);
2678 transport_options.push_back(kIceOption1);
2679 AddIceOptions(kAudioContentName, transport_options);
2680 transport_options.clear();
2681 transport_options.push_back(kIceOption3);
2682 transport_options.push_back(kIceOption2);
2683 AddIceOptions(kVideoContentName, transport_options);
2684 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
2685 jdesc_.session_version()));
2686 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_ice_options));
2687 }
2688
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithUfragPwd)2689 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithUfragPwd) {
2690 // Remove the original ice-ufrag and ice-pwd
2691 JsepSessionDescription jdesc_with_ufrag_pwd(kDummyType);
2692 std::string sdp_with_ufrag_pwd = kSdpFullString;
2693 EXPECT_TRUE(RemoveCandidateUfragPwd(&sdp_with_ufrag_pwd));
2694 // Add session level ufrag and pwd
2695 InjectAfter(kSessionTime,
2696 "a=ice-pwd:session+level+icepwd\r\n"
2697 "a=ice-ufrag:session+level+iceufrag\r\n",
2698 &sdp_with_ufrag_pwd);
2699 // Add media level ufrag and pwd for audio
2700 InjectAfter(
2701 "a=mid:audio_content_name\r\n",
2702 "a=ice-pwd:media+level+icepwd\r\na=ice-ufrag:media+level+iceufrag\r\n",
2703 &sdp_with_ufrag_pwd);
2704 // Update the candidate ufrag and pwd to the expected ones.
2705 EXPECT_TRUE(UpdateCandidateUfragPwd(&jdesc_, 0, "media+level+iceufrag",
2706 "media+level+icepwd"));
2707 EXPECT_TRUE(UpdateCandidateUfragPwd(&jdesc_, 1, "session+level+iceufrag",
2708 "session+level+icepwd"));
2709 EXPECT_TRUE(SdpDeserialize(sdp_with_ufrag_pwd, &jdesc_with_ufrag_pwd));
2710 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_with_ufrag_pwd));
2711 }
2712
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithRecvOnlyContent)2713 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRecvOnlyContent) {
2714 EXPECT_TRUE(TestDeserializeDirection(RtpTransceiverDirection::kRecvOnly));
2715 }
2716
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithSendOnlyContent)2717 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithSendOnlyContent) {
2718 EXPECT_TRUE(TestDeserializeDirection(RtpTransceiverDirection::kSendOnly));
2719 }
2720
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithInactiveContent)2721 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithInactiveContent) {
2722 EXPECT_TRUE(TestDeserializeDirection(RtpTransceiverDirection::kInactive));
2723 }
2724
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithRejectedAudio)2725 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRejectedAudio) {
2726 EXPECT_TRUE(TestDeserializeRejected(true, false));
2727 }
2728
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithRejectedVideo)2729 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRejectedVideo) {
2730 EXPECT_TRUE(TestDeserializeRejected(false, true));
2731 }
2732
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithRejectedAudioVideo)2733 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRejectedAudioVideo) {
2734 EXPECT_TRUE(TestDeserializeRejected(true, true));
2735 }
2736
2737 // Tests that we can still handle the sdp uses mslabel and label instead of
2738 // msid for backward compatibility.
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithoutMsid)2739 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutMsid) {
2740 jdesc_.description()->set_msid_supported(false);
2741 JsepSessionDescription jdesc(kDummyType);
2742 std::string sdp_without_msid = kSdpFullString;
2743 Replace("msid", "xmsid", &sdp_without_msid);
2744 // Deserialize
2745 EXPECT_TRUE(SdpDeserialize(sdp_without_msid, &jdesc));
2746 // Verify
2747 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc));
2748 EXPECT_FALSE(jdesc.description()->msid_signaling() &
2749 ~cricket::kMsidSignalingSsrcAttribute);
2750 }
2751
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithExtmapAllowMixed)2752 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithExtmapAllowMixed) {
2753 jdesc_.description()->set_extmap_allow_mixed(true);
2754 std::string sdp_with_extmap_allow_mixed = kSdpFullString;
2755 InjectAfter("t=0 0\r\n", kExtmapAllowMixed, &sdp_with_extmap_allow_mixed);
2756 // Deserialize
2757 JsepSessionDescription jdesc_deserialized(kDummyType);
2758 EXPECT_TRUE(SdpDeserialize(sdp_with_extmap_allow_mixed, &jdesc_deserialized));
2759 // Verify
2760 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_deserialized));
2761 }
2762
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithoutExtmapAllowMixed)2763 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutExtmapAllowMixed) {
2764 jdesc_.description()->set_extmap_allow_mixed(false);
2765 std::string sdp_without_extmap_allow_mixed = kSdpFullString;
2766 // Deserialize
2767 JsepSessionDescription jdesc_deserialized(kDummyType);
2768 EXPECT_TRUE(
2769 SdpDeserialize(sdp_without_extmap_allow_mixed, &jdesc_deserialized));
2770 // Verify
2771 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_deserialized));
2772 }
2773
TEST_F(WebRtcSdpTest,DeserializeMediaContentDescriptionWithExtmapAllowMixed)2774 TEST_F(WebRtcSdpTest, DeserializeMediaContentDescriptionWithExtmapAllowMixed) {
2775 cricket::MediaContentDescription* video_desc =
2776 jdesc_.description()->GetContentDescriptionByName(kVideoContentName);
2777 ASSERT_TRUE(video_desc);
2778 cricket::MediaContentDescription* audio_desc =
2779 jdesc_.description()->GetContentDescriptionByName(kAudioContentName);
2780 ASSERT_TRUE(audio_desc);
2781 video_desc->set_extmap_allow_mixed_enum(
2782 cricket::MediaContentDescription::kMedia);
2783 audio_desc->set_extmap_allow_mixed_enum(
2784 cricket::MediaContentDescription::kMedia);
2785
2786 std::string sdp_with_extmap_allow_mixed = kSdpFullString;
2787 InjectAfter("a=mid:audio_content_name\r\n", kExtmapAllowMixed,
2788 &sdp_with_extmap_allow_mixed);
2789 InjectAfter("a=mid:video_content_name\r\n", kExtmapAllowMixed,
2790 &sdp_with_extmap_allow_mixed);
2791
2792 // Deserialize
2793 JsepSessionDescription jdesc_deserialized(kDummyType);
2794 EXPECT_TRUE(SdpDeserialize(sdp_with_extmap_allow_mixed, &jdesc_deserialized));
2795 // Verify
2796 EXPECT_TRUE(CompareSessionDescription(jdesc_, jdesc_deserialized));
2797 }
2798
TEST_F(WebRtcSdpTest,DeserializeCandidate)2799 TEST_F(WebRtcSdpTest, DeserializeCandidate) {
2800 JsepIceCandidate jcandidate(kDummyMid, kDummyIndex);
2801
2802 std::string sdp = kSdpOneCandidate;
2803 EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate));
2804 EXPECT_EQ(kDummyMid, jcandidate.sdp_mid());
2805 EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index());
2806 EXPECT_TRUE(jcandidate.candidate().IsEquivalent(jcandidate_->candidate()));
2807 EXPECT_EQ(0, jcandidate.candidate().network_cost());
2808
2809 // Candidate line without generation extension.
2810 sdp = kSdpOneCandidate;
2811 Replace(" generation 2", "", &sdp);
2812 EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate));
2813 EXPECT_EQ(kDummyMid, jcandidate.sdp_mid());
2814 EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index());
2815 Candidate expected = jcandidate_->candidate();
2816 expected.set_generation(0);
2817 EXPECT_TRUE(jcandidate.candidate().IsEquivalent(expected));
2818
2819 // Candidate with network id and/or cost.
2820 sdp = kSdpOneCandidate;
2821 Replace(" generation 2", " generation 2 network-id 2", &sdp);
2822 EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate));
2823 EXPECT_EQ(kDummyMid, jcandidate.sdp_mid());
2824 EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index());
2825 expected = jcandidate_->candidate();
2826 expected.set_network_id(2);
2827 EXPECT_TRUE(jcandidate.candidate().IsEquivalent(expected));
2828 EXPECT_EQ(0, jcandidate.candidate().network_cost());
2829 // Add network cost
2830 Replace(" network-id 2", " network-id 2 network-cost 9", &sdp);
2831 EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate));
2832 EXPECT_TRUE(jcandidate.candidate().IsEquivalent(expected));
2833 EXPECT_EQ(9, jcandidate.candidate().network_cost());
2834
2835 sdp = kSdpTcpActiveCandidate;
2836 EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate));
2837 // Make a cricket::Candidate equivalent to kSdpTcpCandidate string.
2838 Candidate candidate(ICE_CANDIDATE_COMPONENT_RTP, "tcp",
2839 rtc::SocketAddress("192.168.1.5", 9), kCandidatePriority,
2840 "", "", LOCAL_PORT_TYPE, kCandidateGeneration,
2841 kCandidateFoundation1);
2842 std::unique_ptr<IceCandidateInterface> jcandidate_template(
2843 new JsepIceCandidate(std::string("audio_content_name"), 0, candidate));
2844 EXPECT_TRUE(
2845 jcandidate.candidate().IsEquivalent(jcandidate_template->candidate()));
2846 sdp = kSdpTcpPassiveCandidate;
2847 EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate));
2848 sdp = kSdpTcpSOCandidate;
2849 EXPECT_TRUE(SdpDeserializeCandidate(sdp, &jcandidate));
2850 }
2851
2852 // This test verifies the deserialization of candidate-attribute
2853 // as per RFC 5245. Candiate-attribute will be of the format
2854 // candidate:<blah>. This format will be used when candidates
2855 // are trickled.
TEST_F(WebRtcSdpTest,DeserializeRawCandidateAttribute)2856 TEST_F(WebRtcSdpTest, DeserializeRawCandidateAttribute) {
2857 JsepIceCandidate jcandidate(kDummyMid, kDummyIndex);
2858
2859 std::string candidate_attribute = kRawCandidate;
2860 EXPECT_TRUE(SdpDeserializeCandidate(candidate_attribute, &jcandidate));
2861 EXPECT_EQ(kDummyMid, jcandidate.sdp_mid());
2862 EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index());
2863 EXPECT_TRUE(jcandidate.candidate().IsEquivalent(jcandidate_->candidate()));
2864 EXPECT_EQ(2u, jcandidate.candidate().generation());
2865
2866 // Candidate line without generation extension.
2867 candidate_attribute = kRawCandidate;
2868 Replace(" generation 2", "", &candidate_attribute);
2869 EXPECT_TRUE(SdpDeserializeCandidate(candidate_attribute, &jcandidate));
2870 EXPECT_EQ(kDummyMid, jcandidate.sdp_mid());
2871 EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index());
2872 Candidate expected = jcandidate_->candidate();
2873 expected.set_generation(0);
2874 EXPECT_TRUE(jcandidate.candidate().IsEquivalent(expected));
2875
2876 // Candidate line without candidate:
2877 candidate_attribute = kRawCandidate;
2878 Replace("candidate:", "", &candidate_attribute);
2879 EXPECT_FALSE(SdpDeserializeCandidate(candidate_attribute, &jcandidate));
2880
2881 // Candidate line with IPV6 address.
2882 EXPECT_TRUE(SdpDeserializeCandidate(kRawIPV6Candidate, &jcandidate));
2883
2884 // Candidate line with hostname address.
2885 EXPECT_TRUE(SdpDeserializeCandidate(kRawHostnameCandidate, &jcandidate));
2886 }
2887
2888 // This test verifies that the deserialization of an invalid candidate string
2889 // fails.
TEST_F(WebRtcSdpTest,DeserializeInvalidCandidiate)2890 TEST_F(WebRtcSdpTest, DeserializeInvalidCandidiate) {
2891 JsepIceCandidate jcandidate(kDummyMid, kDummyIndex);
2892
2893 std::string candidate_attribute = kRawCandidate;
2894 candidate_attribute.replace(0, 1, "x");
2895 EXPECT_FALSE(SdpDeserializeCandidate(candidate_attribute, &jcandidate));
2896
2897 candidate_attribute = kSdpOneCandidate;
2898 candidate_attribute.replace(0, 1, "x");
2899 EXPECT_FALSE(SdpDeserializeCandidate(candidate_attribute, &jcandidate));
2900
2901 candidate_attribute = kRawCandidate;
2902 candidate_attribute.append("\r\n");
2903 candidate_attribute.append(kRawCandidate);
2904 EXPECT_FALSE(SdpDeserializeCandidate(candidate_attribute, &jcandidate));
2905
2906 EXPECT_FALSE(SdpDeserializeCandidate(kSdpTcpInvalidCandidate, &jcandidate));
2907 }
2908
TEST_F(WebRtcSdpTest,DeserializeSdpWithRtpDataChannels)2909 TEST_F(WebRtcSdpTest, DeserializeSdpWithRtpDataChannels) {
2910 AddRtpDataChannel();
2911 JsepSessionDescription jdesc(kDummyType);
2912 ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion));
2913
2914 std::string sdp_with_data = kSdpString;
2915 sdp_with_data.append(kSdpRtpDataChannelString);
2916 JsepSessionDescription jdesc_output(kDummyType);
2917
2918 // Deserialize
2919 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
2920 // Verify
2921 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
2922 }
2923
TEST_F(WebRtcSdpTest,DeserializeSdpWithSctpDataChannels)2924 TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannels) {
2925 bool use_sctpmap = true;
2926 AddSctpDataChannel(use_sctpmap);
2927 JsepSessionDescription jdesc(kDummyType);
2928 ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion));
2929
2930 std::string sdp_with_data = kSdpString;
2931 sdp_with_data.append(kSdpSctpDataChannelString);
2932 JsepSessionDescription jdesc_output(kDummyType);
2933
2934 // Verify with UDP/DTLS/SCTP (already in kSdpSctpDataChannelString).
2935 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
2936 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
2937
2938 // Verify with DTLS/SCTP.
2939 sdp_with_data.replace(sdp_with_data.find(kUdpDtlsSctp), strlen(kUdpDtlsSctp),
2940 kDtlsSctp);
2941 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
2942 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
2943
2944 // Verify with TCP/DTLS/SCTP.
2945 sdp_with_data.replace(sdp_with_data.find(kDtlsSctp), strlen(kDtlsSctp),
2946 kTcpDtlsSctp);
2947 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
2948 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
2949 }
2950
TEST_F(WebRtcSdpTest,DeserializeSdpWithSctpDataChannelsWithSctpPort)2951 TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithSctpPort) {
2952 bool use_sctpmap = false;
2953 AddSctpDataChannel(use_sctpmap);
2954 JsepSessionDescription jdesc(kDummyType);
2955 ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion));
2956
2957 std::string sdp_with_data = kSdpString;
2958 sdp_with_data.append(kSdpSctpDataChannelStringWithSctpPort);
2959 JsepSessionDescription jdesc_output(kDummyType);
2960
2961 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
2962 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
2963 }
2964
TEST_F(WebRtcSdpTest,DeserializeSdpWithSctpDataChannelsWithSctpColonPort)2965 TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithSctpColonPort) {
2966 bool use_sctpmap = false;
2967 AddSctpDataChannel(use_sctpmap);
2968 JsepSessionDescription jdesc(kDummyType);
2969 ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion));
2970
2971 std::string sdp_with_data = kSdpString;
2972 sdp_with_data.append(kSdpSctpDataChannelStringWithSctpColonPort);
2973 JsepSessionDescription jdesc_output(kDummyType);
2974
2975 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
2976 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
2977 }
2978
TEST_F(WebRtcSdpTest,DeserializeSdpWithSctpDataChannelsButWrongMediaType)2979 TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsButWrongMediaType) {
2980 bool use_sctpmap = true;
2981 AddSctpDataChannel(use_sctpmap);
2982 JsepSessionDescription jdesc(kDummyType);
2983 ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion));
2984
2985 std::string sdp = kSdpSessionString;
2986 sdp += kSdpSctpDataChannelString;
2987
2988 const char needle[] = "m=application ";
2989 sdp.replace(sdp.find(needle), strlen(needle), "m=application:bogus ");
2990
2991 JsepSessionDescription jdesc_output(kDummyType);
2992 EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output));
2993
2994 EXPECT_EQ(1u, jdesc_output.description()->contents().size());
2995 EXPECT_TRUE(jdesc_output.description()->contents()[0].rejected);
2996 }
2997
2998 // Helper function to set the max-message-size parameter in the
2999 // SCTP data codec.
MutateJsepSctpMaxMessageSize(const SessionDescription & desc,int new_value,JsepSessionDescription * jdesc)3000 void MutateJsepSctpMaxMessageSize(const SessionDescription& desc,
3001 int new_value,
3002 JsepSessionDescription* jdesc) {
3003 std::unique_ptr<cricket::SessionDescription> mutant = desc.Clone();
3004 SctpDataContentDescription* dcdesc =
3005 mutant->GetContentDescriptionByName(kDataContentName)->as_sctp();
3006 dcdesc->set_max_message_size(new_value);
3007 jdesc->Initialize(std::move(mutant), kSessionId, kSessionVersion);
3008 }
3009
TEST_F(WebRtcSdpTest,DeserializeSdpWithSctpDataChannelsWithMaxMessageSize)3010 TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithMaxMessageSize) {
3011 bool use_sctpmap = false;
3012 AddSctpDataChannel(use_sctpmap);
3013 JsepSessionDescription jdesc(kDummyType);
3014 std::string sdp_with_data = kSdpString;
3015
3016 sdp_with_data.append(kSdpSctpDataChannelStringWithSctpColonPort);
3017 sdp_with_data.append("a=max-message-size:12345\r\n");
3018 MutateJsepSctpMaxMessageSize(desc_, 12345, &jdesc);
3019 JsepSessionDescription jdesc_output(kDummyType);
3020
3021 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
3022 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
3023 }
3024
TEST_F(WebRtcSdpTest,SerializeSdpWithSctpDataChannelWithMaxMessageSize)3025 TEST_F(WebRtcSdpTest, SerializeSdpWithSctpDataChannelWithMaxMessageSize) {
3026 bool use_sctpmap = false;
3027 AddSctpDataChannel(use_sctpmap);
3028 JsepSessionDescription jdesc(kDummyType);
3029 MutateJsepSctpMaxMessageSize(desc_, 12345, &jdesc);
3030 std::string message = webrtc::SdpSerialize(jdesc);
3031 EXPECT_NE(std::string::npos,
3032 message.find("\r\na=max-message-size:12345\r\n"));
3033 JsepSessionDescription jdesc_output(kDummyType);
3034 EXPECT_TRUE(SdpDeserialize(message, &jdesc_output));
3035 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
3036 }
3037
TEST_F(WebRtcSdpTest,SerializeSdpWithSctpDataChannelWithDefaultMaxMessageSize)3038 TEST_F(WebRtcSdpTest,
3039 SerializeSdpWithSctpDataChannelWithDefaultMaxMessageSize) {
3040 // https://tools.ietf.org/html/draft-ietf-mmusic-sctp-sdp-26#section-6
3041 // The default max message size is 64K.
3042 bool use_sctpmap = false;
3043 AddSctpDataChannel(use_sctpmap);
3044 JsepSessionDescription jdesc(kDummyType);
3045 MutateJsepSctpMaxMessageSize(desc_, 65536, &jdesc);
3046 std::string message = webrtc::SdpSerialize(jdesc);
3047 EXPECT_EQ(std::string::npos, message.find("\r\na=max-message-size:"));
3048 JsepSessionDescription jdesc_output(kDummyType);
3049 EXPECT_TRUE(SdpDeserialize(message, &jdesc_output));
3050 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
3051 }
3052
3053 // Test to check the behaviour if sctp-port is specified
3054 // on the m= line and in a=sctp-port.
TEST_F(WebRtcSdpTest,DeserializeSdpWithMultiSctpPort)3055 TEST_F(WebRtcSdpTest, DeserializeSdpWithMultiSctpPort) {
3056 bool use_sctpmap = true;
3057 AddSctpDataChannel(use_sctpmap);
3058 JsepSessionDescription jdesc(kDummyType);
3059 ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion));
3060
3061 std::string sdp_with_data = kSdpString;
3062 // Append m= attributes
3063 sdp_with_data.append(kSdpSctpDataChannelString);
3064 // Append a=sctp-port attribute
3065 sdp_with_data.append("a=sctp-port 5000\r\n");
3066 JsepSessionDescription jdesc_output(kDummyType);
3067
3068 EXPECT_FALSE(SdpDeserialize(sdp_with_data, &jdesc_output));
3069 }
3070
3071 // Test behavior if a=rtpmap occurs in an SCTP section.
TEST_F(WebRtcSdpTest,DeserializeSdpWithRtpmapAttribute)3072 TEST_F(WebRtcSdpTest, DeserializeSdpWithRtpmapAttribute) {
3073 std::string sdp_with_data = kSdpString;
3074 // Append m= attributes
3075 sdp_with_data.append(kSdpSctpDataChannelString);
3076 // Append a=rtpmap attribute
3077 sdp_with_data.append("a=rtpmap:111 opus/48000/2\r\n");
3078 JsepSessionDescription jdesc_output(kDummyType);
3079 // Correct behavior is to ignore the extra attribute.
3080 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
3081 }
3082
TEST_F(WebRtcSdpTest,DeserializeSdpWithStrangeApplicationProtocolNames)3083 TEST_F(WebRtcSdpTest, DeserializeSdpWithStrangeApplicationProtocolNames) {
3084 static const char* bad_strings[] = {"DTLS/SCTPRTP/", "obviously-bogus",
3085 "UDP/TL/RTSP/SAVPF", "UDP/TL/RTSP/S"};
3086 for (auto proto : bad_strings) {
3087 std::string sdp_with_data = kSdpString;
3088 sdp_with_data.append("m=application 9 ");
3089 sdp_with_data.append(proto);
3090 sdp_with_data.append(" 47\r\n");
3091 JsepSessionDescription jdesc_output(kDummyType);
3092 EXPECT_FALSE(SdpDeserialize(sdp_with_data, &jdesc_output))
3093 << "Parsing should have failed on " << proto;
3094 }
3095 // The following strings are strange, but acceptable as RTP.
3096 static const char* weird_strings[] = {"DTLS/SCTP/RTP/FOO",
3097 "obviously-bogus/RTP/"};
3098 for (auto proto : weird_strings) {
3099 std::string sdp_with_data = kSdpString;
3100 sdp_with_data.append("m=application 9 ");
3101 sdp_with_data.append(proto);
3102 sdp_with_data.append(" 47\r\n");
3103 JsepSessionDescription jdesc_output(kDummyType);
3104 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output))
3105 << "Parsing should have succeeded on " << proto;
3106 }
3107 }
3108
3109 // For crbug/344475.
TEST_F(WebRtcSdpTest,DeserializeSdpWithCorruptedSctpDataChannels)3110 TEST_F(WebRtcSdpTest, DeserializeSdpWithCorruptedSctpDataChannels) {
3111 std::string sdp_with_data = kSdpString;
3112 sdp_with_data.append(kSdpSctpDataChannelString);
3113 // Remove the "\n" at the end.
3114 sdp_with_data = sdp_with_data.substr(0, sdp_with_data.size() - 1);
3115 JsepSessionDescription jdesc_output(kDummyType);
3116
3117 EXPECT_FALSE(SdpDeserialize(sdp_with_data, &jdesc_output));
3118 // No crash is a pass.
3119 }
3120
TEST_F(WebRtcSdpTest,DeserializeSdpWithSctpDataChannelAndUnusualPort)3121 TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelAndUnusualPort) {
3122 bool use_sctpmap = true;
3123 AddSctpDataChannel(use_sctpmap);
3124
3125 // First setup the expected JsepSessionDescription.
3126 JsepSessionDescription jdesc(kDummyType);
3127 MutateJsepSctpPort(&jdesc, desc_, kUnusualSctpPort);
3128
3129 // Then get the deserialized JsepSessionDescription.
3130 std::string sdp_with_data = kSdpString;
3131 sdp_with_data.append(kSdpSctpDataChannelString);
3132 absl::StrReplaceAll(
3133 {{rtc::ToString(kDefaultSctpPort), rtc::ToString(kUnusualSctpPort)}},
3134 &sdp_with_data);
3135 JsepSessionDescription jdesc_output(kDummyType);
3136
3137 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
3138 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
3139 }
3140
TEST_F(WebRtcSdpTest,DeserializeSdpWithSctpDataChannelAndUnusualPortInAttribute)3141 TEST_F(WebRtcSdpTest,
3142 DeserializeSdpWithSctpDataChannelAndUnusualPortInAttribute) {
3143 bool use_sctpmap = false;
3144 AddSctpDataChannel(use_sctpmap);
3145
3146 JsepSessionDescription jdesc(kDummyType);
3147 MutateJsepSctpPort(&jdesc, desc_, kUnusualSctpPort);
3148
3149 // We need to test the deserialized JsepSessionDescription from
3150 // kSdpSctpDataChannelStringWithSctpPort for
3151 // draft-ietf-mmusic-sctp-sdp-07
3152 // a=sctp-port
3153 std::string sdp_with_data = kSdpString;
3154 sdp_with_data.append(kSdpSctpDataChannelStringWithSctpPort);
3155 absl::StrReplaceAll(
3156 {{rtc::ToString(kDefaultSctpPort), rtc::ToString(kUnusualSctpPort)}},
3157 &sdp_with_data);
3158 JsepSessionDescription jdesc_output(kDummyType);
3159
3160 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
3161 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output));
3162 }
3163
TEST_F(WebRtcSdpTest,DeserializeSdpWithRtpDataChannelsAndBandwidth)3164 TEST_F(WebRtcSdpTest, DeserializeSdpWithRtpDataChannelsAndBandwidth) {
3165 // We want to test that deserializing data content limits bandwidth
3166 // settings (it should never be greater than the default).
3167 // This should prevent someone from using unlimited data bandwidth through
3168 // JS and "breaking the Internet".
3169 // See: https://code.google.com/p/chromium/issues/detail?id=280726
3170 std::string sdp_with_bandwidth = kSdpString;
3171 sdp_with_bandwidth.append(kSdpRtpDataChannelString);
3172 InjectAfter("a=mid:data_content_name\r\n", "b=AS:100\r\n",
3173 &sdp_with_bandwidth);
3174 JsepSessionDescription jdesc_with_bandwidth(kDummyType);
3175
3176 EXPECT_FALSE(SdpDeserialize(sdp_with_bandwidth, &jdesc_with_bandwidth));
3177 }
3178
TEST_F(WebRtcSdpTest,DeserializeSdpWithSctpDataChannelsAndBandwidth)3179 TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsAndBandwidth) {
3180 bool use_sctpmap = true;
3181 AddSctpDataChannel(use_sctpmap);
3182 JsepSessionDescription jdesc(kDummyType);
3183 SctpDataContentDescription* dcd = GetFirstSctpDataContentDescription(&desc_);
3184 dcd->set_bandwidth(100 * 1000);
3185 ASSERT_TRUE(jdesc.Initialize(desc_.Clone(), kSessionId, kSessionVersion));
3186
3187 std::string sdp_with_bandwidth = kSdpString;
3188 sdp_with_bandwidth.append(kSdpSctpDataChannelString);
3189 InjectAfter("a=mid:data_content_name\r\n", "b=AS:100\r\n",
3190 &sdp_with_bandwidth);
3191 JsepSessionDescription jdesc_with_bandwidth(kDummyType);
3192
3193 // SCTP has congestion control, so we shouldn't limit the bandwidth
3194 // as we do for RTP.
3195 EXPECT_TRUE(SdpDeserialize(sdp_with_bandwidth, &jdesc_with_bandwidth));
3196 EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_with_bandwidth));
3197 }
3198
3199 class WebRtcSdpExtmapTest : public WebRtcSdpTest,
3200 public ::testing::WithParamInterface<bool> {};
3201
TEST_P(WebRtcSdpExtmapTest,DeserializeSessionDescriptionWithSessionLevelExtmap)3202 TEST_P(WebRtcSdpExtmapTest,
3203 DeserializeSessionDescriptionWithSessionLevelExtmap) {
3204 bool encrypted = GetParam();
3205 TestDeserializeExtmap(true, false, encrypted);
3206 }
3207
TEST_P(WebRtcSdpExtmapTest,DeserializeSessionDescriptionWithMediaLevelExtmap)3208 TEST_P(WebRtcSdpExtmapTest, DeserializeSessionDescriptionWithMediaLevelExtmap) {
3209 bool encrypted = GetParam();
3210 TestDeserializeExtmap(false, true, encrypted);
3211 }
3212
TEST_P(WebRtcSdpExtmapTest,DeserializeSessionDescriptionWithInvalidExtmap)3213 TEST_P(WebRtcSdpExtmapTest, DeserializeSessionDescriptionWithInvalidExtmap) {
3214 bool encrypted = GetParam();
3215 TestDeserializeExtmap(true, true, encrypted);
3216 }
3217
3218 INSTANTIATE_TEST_SUITE_P(Encrypted,
3219 WebRtcSdpExtmapTest,
3220 ::testing::Values(false, true));
3221
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithoutEndLineBreak)3222 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutEndLineBreak) {
3223 JsepSessionDescription jdesc(kDummyType);
3224 std::string sdp = kSdpFullString;
3225 sdp = sdp.substr(0, sdp.size() - 2); // Remove \r\n at the end.
3226 // Deserialize
3227 SdpParseError error;
3228 EXPECT_FALSE(webrtc::SdpDeserialize(sdp, &jdesc, &error));
3229 const std::string lastline = "a=ssrc:3 label:video_track_id_1";
3230 EXPECT_EQ(lastline, error.line);
3231 EXPECT_EQ("Invalid SDP line.", error.description);
3232 }
3233
TEST_F(WebRtcSdpTest,DeserializeCandidateWithDifferentTransport)3234 TEST_F(WebRtcSdpTest, DeserializeCandidateWithDifferentTransport) {
3235 JsepIceCandidate jcandidate(kDummyMid, kDummyIndex);
3236 std::string new_sdp = kSdpOneCandidate;
3237 Replace("udp", "unsupported_transport", &new_sdp);
3238 EXPECT_FALSE(SdpDeserializeCandidate(new_sdp, &jcandidate));
3239 new_sdp = kSdpOneCandidate;
3240 Replace("udp", "uDP", &new_sdp);
3241 EXPECT_TRUE(SdpDeserializeCandidate(new_sdp, &jcandidate));
3242 EXPECT_EQ(kDummyMid, jcandidate.sdp_mid());
3243 EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index());
3244 EXPECT_TRUE(jcandidate.candidate().IsEquivalent(jcandidate_->candidate()));
3245 }
3246
TEST_F(WebRtcSdpTest,DeserializeCandidateWithUfragPwd)3247 TEST_F(WebRtcSdpTest, DeserializeCandidateWithUfragPwd) {
3248 JsepIceCandidate jcandidate(kDummyMid, kDummyIndex);
3249 EXPECT_TRUE(
3250 SdpDeserializeCandidate(kSdpOneCandidateWithUfragPwd, &jcandidate));
3251 EXPECT_EQ(kDummyMid, jcandidate.sdp_mid());
3252 EXPECT_EQ(kDummyIndex, jcandidate.sdp_mline_index());
3253 Candidate ref_candidate = jcandidate_->candidate();
3254 ref_candidate.set_username("user_rtp");
3255 ref_candidate.set_password("password_rtp");
3256 EXPECT_TRUE(jcandidate.candidate().IsEquivalent(ref_candidate));
3257 }
3258
TEST_F(WebRtcSdpTest,DeserializeSdpWithConferenceFlag)3259 TEST_F(WebRtcSdpTest, DeserializeSdpWithConferenceFlag) {
3260 JsepSessionDescription jdesc(kDummyType);
3261
3262 // Deserialize
3263 EXPECT_TRUE(SdpDeserialize(kSdpConferenceString, &jdesc));
3264
3265 // Verify
3266 cricket::AudioContentDescription* audio =
3267 cricket::GetFirstAudioContentDescription(jdesc.description());
3268 EXPECT_TRUE(audio->conference_mode());
3269
3270 cricket::VideoContentDescription* video =
3271 cricket::GetFirstVideoContentDescription(jdesc.description());
3272 EXPECT_TRUE(video->conference_mode());
3273 }
3274
TEST_F(WebRtcSdpTest,SerializeSdpWithConferenceFlag)3275 TEST_F(WebRtcSdpTest, SerializeSdpWithConferenceFlag) {
3276 JsepSessionDescription jdesc(kDummyType);
3277
3278 // We tested deserialization already above, so just test that if we serialize
3279 // and deserialize the flag doesn't disappear.
3280 EXPECT_TRUE(SdpDeserialize(kSdpConferenceString, &jdesc));
3281 std::string reserialized = webrtc::SdpSerialize(jdesc);
3282 EXPECT_TRUE(SdpDeserialize(reserialized, &jdesc));
3283
3284 // Verify.
3285 cricket::AudioContentDescription* audio =
3286 cricket::GetFirstAudioContentDescription(jdesc.description());
3287 EXPECT_TRUE(audio->conference_mode());
3288
3289 cricket::VideoContentDescription* video =
3290 cricket::GetFirstVideoContentDescription(jdesc.description());
3291 EXPECT_TRUE(video->conference_mode());
3292 }
3293
TEST_F(WebRtcSdpTest,SerializeAndDeserializeRemoteNetEstimate)3294 TEST_F(WebRtcSdpTest, SerializeAndDeserializeRemoteNetEstimate) {
3295 {
3296 // By default remote estimates are disabled.
3297 JsepSessionDescription dst(kDummyType);
3298 SdpDeserialize(webrtc::SdpSerialize(jdesc_), &dst);
3299 EXPECT_FALSE(cricket::GetFirstVideoContentDescription(dst.description())
3300 ->remote_estimate());
3301 }
3302 {
3303 // When remote estimate is enabled, the setting is propagated via SDP.
3304 cricket::GetFirstVideoContentDescription(jdesc_.description())
3305 ->set_remote_estimate(true);
3306 JsepSessionDescription dst(kDummyType);
3307 SdpDeserialize(webrtc::SdpSerialize(jdesc_), &dst);
3308 EXPECT_TRUE(cricket::GetFirstVideoContentDescription(dst.description())
3309 ->remote_estimate());
3310 }
3311 }
3312
TEST_F(WebRtcSdpTest,DeserializeBrokenSdp)3313 TEST_F(WebRtcSdpTest, DeserializeBrokenSdp) {
3314 const char kSdpDestroyer[] = "!@#$%^&";
3315 const char kSdpEmptyType[] = " =candidate";
3316 const char kSdpEqualAsPlus[] = "a+candidate";
3317 const char kSdpSpaceAfterEqual[] = "a= candidate";
3318 const char kSdpUpperType[] = "A=candidate";
3319 const char kSdpEmptyLine[] = "";
3320 const char kSdpMissingValue[] = "a=";
3321
3322 const char kSdpBrokenFingerprint[] =
3323 "a=fingerprint:sha-1 "
3324 "4AAD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB";
3325 const char kSdpExtraField[] =
3326 "a=fingerprint:sha-1 "
3327 "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB XXX";
3328 const char kSdpMissingSpace[] =
3329 "a=fingerprint:sha-1"
3330 "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB";
3331 // MD5 is not allowed in fingerprints.
3332 const char kSdpMd5[] =
3333 "a=fingerprint:md5 "
3334 "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B";
3335
3336 // Broken session description
3337 ExpectParseFailure("v=", kSdpDestroyer);
3338 ExpectParseFailure("o=", kSdpDestroyer);
3339 ExpectParseFailure("s=-", kSdpDestroyer);
3340 // Broken time description
3341 ExpectParseFailure("t=", kSdpDestroyer);
3342
3343 // Broken media description
3344 ExpectParseFailure("m=audio", "c=IN IP4 74.125.224.39");
3345 ExpectParseFailure("m=video", kSdpDestroyer);
3346 ExpectParseFailure("m=", "c=IN IP4 74.125.224.39");
3347
3348 // Invalid lines
3349 ExpectParseFailure("a=candidate", kSdpEmptyType);
3350 ExpectParseFailure("a=candidate", kSdpEqualAsPlus);
3351 ExpectParseFailure("a=candidate", kSdpSpaceAfterEqual);
3352 ExpectParseFailure("a=candidate", kSdpUpperType);
3353
3354 // Bogus fingerprint replacing a=sendrev. We selected this attribute
3355 // because it's orthogonal to what we are replacing and hence
3356 // safe.
3357 ExpectParseFailure("a=sendrecv", kSdpBrokenFingerprint);
3358 ExpectParseFailure("a=sendrecv", kSdpExtraField);
3359 ExpectParseFailure("a=sendrecv", kSdpMissingSpace);
3360 ExpectParseFailure("a=sendrecv", kSdpMd5);
3361
3362 // Empty Line
3363 ExpectParseFailure("a=rtcp:2347 IN IP4 74.125.127.126", kSdpEmptyLine);
3364 ExpectParseFailure("a=rtcp:2347 IN IP4 74.125.127.126", kSdpMissingValue);
3365 }
3366
TEST_F(WebRtcSdpTest,DeserializeSdpWithInvalidAttributeValue)3367 TEST_F(WebRtcSdpTest, DeserializeSdpWithInvalidAttributeValue) {
3368 // ssrc
3369 ExpectParseFailure("a=ssrc:1", "a=ssrc:badvalue");
3370 ExpectParseFailure("a=ssrc-group:FEC 2 3", "a=ssrc-group:FEC badvalue 3");
3371 // crypto
3372 ExpectParseFailure("a=crypto:1 ", "a=crypto:badvalue ");
3373 // rtpmap
3374 ExpectParseFailure("a=rtpmap:111 ", "a=rtpmap:badvalue ");
3375 ExpectParseFailure("opus/48000/2", "opus/badvalue/2");
3376 ExpectParseFailure("opus/48000/2", "opus/48000/badvalue");
3377 // candidate
3378 ExpectParseFailure("1 udp 2130706432", "badvalue udp 2130706432");
3379 ExpectParseFailure("1 udp 2130706432", "1 udp badvalue");
3380 ExpectParseFailure("192.168.1.5 1234", "192.168.1.5 badvalue");
3381 ExpectParseFailure("rport 2346", "rport badvalue");
3382 ExpectParseFailure("rport 2346 generation 2",
3383 "rport 2346 generation badvalue");
3384 // m line
3385 ExpectParseFailure("m=audio 2345 RTP/SAVPF 111 103 104",
3386 "m=audio 2345 RTP/SAVPF 111 badvalue 104");
3387
3388 // bandwidth
3389 ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n",
3390 "b=AS:badvalue\r\n", "b=AS:badvalue");
3391 ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", "b=AS\r\n",
3392 "b=AS");
3393 ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", "b=AS:\r\n",
3394 "b=AS:");
3395 ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n",
3396 "b=AS:12:34\r\n", "b=AS:12:34");
3397
3398 // rtcp-fb
3399 ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n",
3400 "a=rtcp-fb:badvalue nack\r\n",
3401 "a=rtcp-fb:badvalue nack");
3402 // extmap
3403 ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n",
3404 "a=extmap:badvalue http://example.com\r\n",
3405 "a=extmap:badvalue http://example.com");
3406 }
3407
TEST_F(WebRtcSdpTest,DeserializeSdpWithReorderedPltypes)3408 TEST_F(WebRtcSdpTest, DeserializeSdpWithReorderedPltypes) {
3409 JsepSessionDescription jdesc_output(kDummyType);
3410
3411 const char kSdpWithReorderedPlTypesString[] =
3412 "v=0\r\n"
3413 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
3414 "s=-\r\n"
3415 "t=0 0\r\n"
3416 "m=audio 9 RTP/SAVPF 104 103\r\n" // Pl type 104 preferred.
3417 "a=rtpmap:111 opus/48000/2\r\n" // Pltype 111 listed before 103 and 104
3418 // in the map.
3419 "a=rtpmap:103 ISAC/16000\r\n" // Pltype 103 listed before 104 in the map.
3420 "a=rtpmap:104 ISAC/32000\r\n";
3421
3422 // Deserialize
3423 EXPECT_TRUE(SdpDeserialize(kSdpWithReorderedPlTypesString, &jdesc_output));
3424
3425 const AudioContentDescription* acd =
3426 GetFirstAudioContentDescription(jdesc_output.description());
3427 ASSERT_TRUE(acd);
3428 ASSERT_FALSE(acd->codecs().empty());
3429 EXPECT_EQ("ISAC", acd->codecs()[0].name);
3430 EXPECT_EQ(32000, acd->codecs()[0].clockrate);
3431 EXPECT_EQ(104, acd->codecs()[0].id);
3432 }
3433
TEST_F(WebRtcSdpTest,DeserializeSerializeCodecParams)3434 TEST_F(WebRtcSdpTest, DeserializeSerializeCodecParams) {
3435 JsepSessionDescription jdesc_output(kDummyType);
3436 CodecParams params;
3437 params.max_ptime = 40;
3438 params.ptime = 30;
3439 params.min_ptime = 10;
3440 params.sprop_stereo = 1;
3441 params.stereo = 1;
3442 params.useinband = 1;
3443 params.maxaveragebitrate = 128000;
3444 TestDeserializeCodecParams(params, &jdesc_output);
3445 TestSerialize(jdesc_output);
3446 }
3447
TEST_F(WebRtcSdpTest,DeserializeSerializeRtcpFb)3448 TEST_F(WebRtcSdpTest, DeserializeSerializeRtcpFb) {
3449 const bool kUseWildcard = false;
3450 JsepSessionDescription jdesc_output(kDummyType);
3451 TestDeserializeRtcpFb(&jdesc_output, kUseWildcard);
3452 TestSerialize(jdesc_output);
3453 }
3454
TEST_F(WebRtcSdpTest,DeserializeSerializeRtcpFbWildcard)3455 TEST_F(WebRtcSdpTest, DeserializeSerializeRtcpFbWildcard) {
3456 const bool kUseWildcard = true;
3457 JsepSessionDescription jdesc_output(kDummyType);
3458 TestDeserializeRtcpFb(&jdesc_output, kUseWildcard);
3459 TestSerialize(jdesc_output);
3460 }
3461
TEST_F(WebRtcSdpTest,DeserializeVideoFmtp)3462 TEST_F(WebRtcSdpTest, DeserializeVideoFmtp) {
3463 JsepSessionDescription jdesc_output(kDummyType);
3464
3465 const char kSdpWithFmtpString[] =
3466 "v=0\r\n"
3467 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
3468 "s=-\r\n"
3469 "t=0 0\r\n"
3470 "m=video 3457 RTP/SAVPF 120\r\n"
3471 "a=rtpmap:120 VP8/90000\r\n"
3472 "a=fmtp:120 x-google-min-bitrate=10;x-google-max-quantization=40\r\n";
3473
3474 // Deserialize
3475 SdpParseError error;
3476 EXPECT_TRUE(
3477 webrtc::SdpDeserialize(kSdpWithFmtpString, &jdesc_output, &error));
3478
3479 const VideoContentDescription* vcd =
3480 GetFirstVideoContentDescription(jdesc_output.description());
3481 ASSERT_TRUE(vcd);
3482 ASSERT_FALSE(vcd->codecs().empty());
3483 cricket::VideoCodec vp8 = vcd->codecs()[0];
3484 EXPECT_EQ("VP8", vp8.name);
3485 EXPECT_EQ(120, vp8.id);
3486 cricket::CodecParameterMap::iterator found =
3487 vp8.params.find("x-google-min-bitrate");
3488 ASSERT_TRUE(found != vp8.params.end());
3489 EXPECT_EQ(found->second, "10");
3490 found = vp8.params.find("x-google-max-quantization");
3491 ASSERT_TRUE(found != vp8.params.end());
3492 EXPECT_EQ(found->second, "40");
3493 }
3494
TEST_F(WebRtcSdpTest,DeserializeVideoFmtpWithSprops)3495 TEST_F(WebRtcSdpTest, DeserializeVideoFmtpWithSprops) {
3496 JsepSessionDescription jdesc_output(kDummyType);
3497
3498 const char kSdpWithFmtpString[] =
3499 "v=0\r\n"
3500 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
3501 "s=-\r\n"
3502 "t=0 0\r\n"
3503 "m=video 49170 RTP/AVP 98\r\n"
3504 "a=rtpmap:98 H264/90000\r\n"
3505 "a=fmtp:98 profile-level-id=42A01E; "
3506 "sprop-parameter-sets=Z0IACpZTBYmI,aMljiA==\r\n";
3507
3508 // Deserialize.
3509 SdpParseError error;
3510 EXPECT_TRUE(
3511 webrtc::SdpDeserialize(kSdpWithFmtpString, &jdesc_output, &error));
3512
3513 const VideoContentDescription* vcd =
3514 GetFirstVideoContentDescription(jdesc_output.description());
3515 ASSERT_TRUE(vcd);
3516 ASSERT_FALSE(vcd->codecs().empty());
3517 cricket::VideoCodec h264 = vcd->codecs()[0];
3518 EXPECT_EQ("H264", h264.name);
3519 EXPECT_EQ(98, h264.id);
3520 cricket::CodecParameterMap::const_iterator found =
3521 h264.params.find("profile-level-id");
3522 ASSERT_TRUE(found != h264.params.end());
3523 EXPECT_EQ(found->second, "42A01E");
3524 found = h264.params.find("sprop-parameter-sets");
3525 ASSERT_TRUE(found != h264.params.end());
3526 EXPECT_EQ(found->second, "Z0IACpZTBYmI,aMljiA==");
3527 }
3528
TEST_F(WebRtcSdpTest,DeserializeVideoFmtpWithSpace)3529 TEST_F(WebRtcSdpTest, DeserializeVideoFmtpWithSpace) {
3530 JsepSessionDescription jdesc_output(kDummyType);
3531
3532 const char kSdpWithFmtpString[] =
3533 "v=0\r\n"
3534 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
3535 "s=-\r\n"
3536 "t=0 0\r\n"
3537 "m=video 3457 RTP/SAVPF 120\r\n"
3538 "a=rtpmap:120 VP8/90000\r\n"
3539 "a=fmtp:120 x-google-min-bitrate=10; x-google-max-quantization=40\r\n";
3540
3541 // Deserialize
3542 SdpParseError error;
3543 EXPECT_TRUE(
3544 webrtc::SdpDeserialize(kSdpWithFmtpString, &jdesc_output, &error));
3545
3546 const VideoContentDescription* vcd =
3547 GetFirstVideoContentDescription(jdesc_output.description());
3548 ASSERT_TRUE(vcd);
3549 ASSERT_FALSE(vcd->codecs().empty());
3550 cricket::VideoCodec vp8 = vcd->codecs()[0];
3551 EXPECT_EQ("VP8", vp8.name);
3552 EXPECT_EQ(120, vp8.id);
3553 cricket::CodecParameterMap::iterator found =
3554 vp8.params.find("x-google-min-bitrate");
3555 ASSERT_TRUE(found != vp8.params.end());
3556 EXPECT_EQ(found->second, "10");
3557 found = vp8.params.find("x-google-max-quantization");
3558 ASSERT_TRUE(found != vp8.params.end());
3559 EXPECT_EQ(found->second, "40");
3560 }
3561
TEST_F(WebRtcSdpTest,DeserializePacketizationAttributeWithIllegalValue)3562 TEST_F(WebRtcSdpTest, DeserializePacketizationAttributeWithIllegalValue) {
3563 JsepSessionDescription jdesc_output(kDummyType);
3564
3565 const char kSdpWithPacketizationString[] =
3566 "v=0\r\n"
3567 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
3568 "s=-\r\n"
3569 "t=0 0\r\n"
3570 "m=audio 9 RTP/SAVPF 111\r\n"
3571 "a=rtpmap:111 opus/48000/2\r\n"
3572 "a=packetization:111 unknownpacketizationattributeforaudio\r\n"
3573 "m=video 3457 RTP/SAVPF 120 121 122\r\n"
3574 "a=rtpmap:120 VP8/90000\r\n"
3575 "a=packetization:120 raw\r\n"
3576 "a=rtpmap:121 VP9/90000\r\n"
3577 "a=rtpmap:122 H264/90000\r\n"
3578 "a=packetization:122 unknownpacketizationattributevalue\r\n";
3579
3580 SdpParseError error;
3581 EXPECT_TRUE(webrtc::SdpDeserialize(kSdpWithPacketizationString, &jdesc_output,
3582 &error));
3583
3584 AudioContentDescription* acd =
3585 GetFirstAudioContentDescription(jdesc_output.description());
3586 ASSERT_TRUE(acd);
3587 ASSERT_THAT(acd->codecs(), testing::SizeIs(1));
3588 cricket::AudioCodec opus = acd->codecs()[0];
3589 EXPECT_EQ(opus.name, "opus");
3590 EXPECT_EQ(opus.id, 111);
3591
3592 const VideoContentDescription* vcd =
3593 GetFirstVideoContentDescription(jdesc_output.description());
3594 ASSERT_TRUE(vcd);
3595 ASSERT_THAT(vcd->codecs(), testing::SizeIs(3));
3596 cricket::VideoCodec vp8 = vcd->codecs()[0];
3597 EXPECT_EQ(vp8.name, "VP8");
3598 EXPECT_EQ(vp8.id, 120);
3599 EXPECT_EQ(vp8.packetization, "raw");
3600 cricket::VideoCodec vp9 = vcd->codecs()[1];
3601 EXPECT_EQ(vp9.name, "VP9");
3602 EXPECT_EQ(vp9.id, 121);
3603 EXPECT_EQ(vp9.packetization, absl::nullopt);
3604 cricket::VideoCodec h264 = vcd->codecs()[2];
3605 EXPECT_EQ(h264.name, "H264");
3606 EXPECT_EQ(h264.id, 122);
3607 EXPECT_EQ(h264.packetization, absl::nullopt);
3608 }
3609
TEST_F(WebRtcSdpTest,SerializeAudioFmtpWithUnknownParameter)3610 TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithUnknownParameter) {
3611 AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_);
3612
3613 cricket::AudioCodecs codecs = acd->codecs();
3614 codecs[0].params["unknown-future-parameter"] = "SomeFutureValue";
3615 acd->set_codecs(codecs);
3616
3617 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
3618 jdesc_.session_version()));
3619 std::string message = webrtc::SdpSerialize(jdesc_);
3620 std::string sdp_with_fmtp = kSdpFullString;
3621 InjectAfter("a=rtpmap:111 opus/48000/2\r\n",
3622 "a=fmtp:111 unknown-future-parameter=SomeFutureValue\r\n",
3623 &sdp_with_fmtp);
3624 EXPECT_EQ(sdp_with_fmtp, message);
3625 }
3626
TEST_F(WebRtcSdpTest,SerializeAudioFmtpWithKnownFmtpParameter)3627 TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithKnownFmtpParameter) {
3628 AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_);
3629
3630 cricket::AudioCodecs codecs = acd->codecs();
3631 codecs[0].params["stereo"] = "1";
3632 acd->set_codecs(codecs);
3633
3634 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
3635 jdesc_.session_version()));
3636 std::string message = webrtc::SdpSerialize(jdesc_);
3637 std::string sdp_with_fmtp = kSdpFullString;
3638 InjectAfter("a=rtpmap:111 opus/48000/2\r\n", "a=fmtp:111 stereo=1\r\n",
3639 &sdp_with_fmtp);
3640 EXPECT_EQ(sdp_with_fmtp, message);
3641 }
3642
TEST_F(WebRtcSdpTest,SerializeAudioFmtpWithPTimeAndMaxPTime)3643 TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithPTimeAndMaxPTime) {
3644 AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_);
3645
3646 cricket::AudioCodecs codecs = acd->codecs();
3647 codecs[0].params["ptime"] = "20";
3648 codecs[0].params["maxptime"] = "120";
3649 acd->set_codecs(codecs);
3650
3651 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
3652 jdesc_.session_version()));
3653 std::string message = webrtc::SdpSerialize(jdesc_);
3654 std::string sdp_with_fmtp = kSdpFullString;
3655 InjectAfter("a=rtpmap:104 ISAC/32000\r\n",
3656 "a=maxptime:120\r\n" // No comma here. String merging!
3657 "a=ptime:20\r\n",
3658 &sdp_with_fmtp);
3659 EXPECT_EQ(sdp_with_fmtp, message);
3660 }
3661
TEST_F(WebRtcSdpTest,SerializeAudioFmtpWithTelephoneEvent)3662 TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithTelephoneEvent) {
3663 AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_);
3664
3665 cricket::AudioCodecs codecs = acd->codecs();
3666 cricket::AudioCodec dtmf(105, "telephone-event", 8000, 0, 1);
3667 dtmf.params[""] = "0-15";
3668 codecs.push_back(dtmf);
3669 acd->set_codecs(codecs);
3670
3671 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
3672 jdesc_.session_version()));
3673 std::string message = webrtc::SdpSerialize(jdesc_);
3674 std::string sdp_with_fmtp = kSdpFullString;
3675 InjectAfter("m=audio 2345 RTP/SAVPF 111 103 104", " 105", &sdp_with_fmtp);
3676 InjectAfter(
3677 "a=rtpmap:104 ISAC/32000\r\n",
3678 "a=rtpmap:105 telephone-event/8000\r\n" // No comma here. String merging!
3679 "a=fmtp:105 0-15\r\n",
3680 &sdp_with_fmtp);
3681 EXPECT_EQ(sdp_with_fmtp, message);
3682 }
3683
TEST_F(WebRtcSdpTest,SerializeVideoFmtp)3684 TEST_F(WebRtcSdpTest, SerializeVideoFmtp) {
3685 VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_);
3686
3687 cricket::VideoCodecs codecs = vcd->codecs();
3688 codecs[0].params["x-google-min-bitrate"] = "10";
3689 vcd->set_codecs(codecs);
3690
3691 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
3692 jdesc_.session_version()));
3693 std::string message = webrtc::SdpSerialize(jdesc_);
3694 std::string sdp_with_fmtp = kSdpFullString;
3695 InjectAfter("a=rtpmap:120 VP8/90000\r\n",
3696 "a=fmtp:120 x-google-min-bitrate=10\r\n", &sdp_with_fmtp);
3697 EXPECT_EQ(sdp_with_fmtp, message);
3698 }
3699
TEST_F(WebRtcSdpTest,SerializeVideoPacketizationAttribute)3700 TEST_F(WebRtcSdpTest, SerializeVideoPacketizationAttribute) {
3701 VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_);
3702
3703 cricket::VideoCodecs codecs = vcd->codecs();
3704 codecs[0].packetization = "raw";
3705 vcd->set_codecs(codecs);
3706
3707 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
3708 jdesc_.session_version()));
3709 std::string message = webrtc::SdpSerialize(jdesc_);
3710 std::string sdp_with_packetization = kSdpFullString;
3711 InjectAfter("a=rtpmap:120 VP8/90000\r\n", "a=packetization:120 raw\r\n",
3712 &sdp_with_packetization);
3713 EXPECT_EQ(sdp_with_packetization, message);
3714 }
3715
TEST_F(WebRtcSdpTest,DeserializeAndSerializeSdpWithIceLite)3716 TEST_F(WebRtcSdpTest, DeserializeAndSerializeSdpWithIceLite) {
3717 // Deserialize the baseline description, making sure it's ICE full.
3718 JsepSessionDescription jdesc_with_icelite(kDummyType);
3719 std::string sdp_with_icelite = kSdpFullString;
3720 EXPECT_TRUE(SdpDeserialize(sdp_with_icelite, &jdesc_with_icelite));
3721 cricket::SessionDescription* desc = jdesc_with_icelite.description();
3722 const cricket::TransportInfo* tinfo1 =
3723 desc->GetTransportInfoByName("audio_content_name");
3724 EXPECT_EQ(cricket::ICEMODE_FULL, tinfo1->description.ice_mode);
3725 const cricket::TransportInfo* tinfo2 =
3726 desc->GetTransportInfoByName("video_content_name");
3727 EXPECT_EQ(cricket::ICEMODE_FULL, tinfo2->description.ice_mode);
3728
3729 // Add "a=ice-lite" and deserialize, making sure it's ICE lite.
3730 InjectAfter(kSessionTime, "a=ice-lite\r\n", &sdp_with_icelite);
3731 EXPECT_TRUE(SdpDeserialize(sdp_with_icelite, &jdesc_with_icelite));
3732 desc = jdesc_with_icelite.description();
3733 const cricket::TransportInfo* atinfo =
3734 desc->GetTransportInfoByName("audio_content_name");
3735 EXPECT_EQ(cricket::ICEMODE_LITE, atinfo->description.ice_mode);
3736 const cricket::TransportInfo* vtinfo =
3737 desc->GetTransportInfoByName("video_content_name");
3738 EXPECT_EQ(cricket::ICEMODE_LITE, vtinfo->description.ice_mode);
3739
3740 // Now that we know deserialization works, we can use TestSerialize to test
3741 // serialization.
3742 TestSerialize(jdesc_with_icelite);
3743 }
3744
3745 // Verifies that the candidates in the input SDP are parsed and serialized
3746 // correctly in the output SDP.
TEST_F(WebRtcSdpTest,RoundTripSdpWithSctpDataChannelsWithCandidates)3747 TEST_F(WebRtcSdpTest, RoundTripSdpWithSctpDataChannelsWithCandidates) {
3748 std::string sdp_with_data = kSdpString;
3749 sdp_with_data.append(kSdpSctpDataChannelWithCandidatesString);
3750 JsepSessionDescription jdesc_output(kDummyType);
3751
3752 EXPECT_TRUE(SdpDeserialize(sdp_with_data, &jdesc_output));
3753 EXPECT_EQ(sdp_with_data, webrtc::SdpSerialize(jdesc_output));
3754 }
3755
TEST_F(WebRtcSdpTest,SerializeDtlsSetupAttribute)3756 TEST_F(WebRtcSdpTest, SerializeDtlsSetupAttribute) {
3757 AddFingerprint();
3758 TransportInfo audio_transport_info =
3759 *(desc_.GetTransportInfoByName(kAudioContentName));
3760 EXPECT_EQ(cricket::CONNECTIONROLE_NONE,
3761 audio_transport_info.description.connection_role);
3762 audio_transport_info.description.connection_role =
3763 cricket::CONNECTIONROLE_ACTIVE;
3764
3765 TransportInfo video_transport_info =
3766 *(desc_.GetTransportInfoByName(kVideoContentName));
3767 EXPECT_EQ(cricket::CONNECTIONROLE_NONE,
3768 video_transport_info.description.connection_role);
3769 video_transport_info.description.connection_role =
3770 cricket::CONNECTIONROLE_ACTIVE;
3771
3772 desc_.RemoveTransportInfoByName(kAudioContentName);
3773 desc_.RemoveTransportInfoByName(kVideoContentName);
3774
3775 desc_.AddTransportInfo(audio_transport_info);
3776 desc_.AddTransportInfo(video_transport_info);
3777
3778 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
3779 jdesc_.session_version()));
3780 std::string message = webrtc::SdpSerialize(jdesc_);
3781 std::string sdp_with_dtlssetup = kSdpFullString;
3782
3783 // Fingerprint attribute is necessary to add DTLS setup attribute.
3784 InjectAfter(kAttributeIcePwdVoice, kFingerprint, &sdp_with_dtlssetup);
3785 InjectAfter(kAttributeIcePwdVideo, kFingerprint, &sdp_with_dtlssetup);
3786 // Now adding |setup| attribute.
3787 InjectAfter(kFingerprint, "a=setup:active\r\n", &sdp_with_dtlssetup);
3788 EXPECT_EQ(sdp_with_dtlssetup, message);
3789 }
3790
TEST_F(WebRtcSdpTest,DeserializeDtlsSetupAttribute)3791 TEST_F(WebRtcSdpTest, DeserializeDtlsSetupAttribute) {
3792 JsepSessionDescription jdesc_with_dtlssetup(kDummyType);
3793 std::string sdp_with_dtlssetup = kSdpFullString;
3794 InjectAfter(kSessionTime, "a=setup:actpass\r\n", &sdp_with_dtlssetup);
3795 EXPECT_TRUE(SdpDeserialize(sdp_with_dtlssetup, &jdesc_with_dtlssetup));
3796 cricket::SessionDescription* desc = jdesc_with_dtlssetup.description();
3797 const cricket::TransportInfo* atinfo =
3798 desc->GetTransportInfoByName("audio_content_name");
3799 EXPECT_EQ(cricket::CONNECTIONROLE_ACTPASS,
3800 atinfo->description.connection_role);
3801 const cricket::TransportInfo* vtinfo =
3802 desc->GetTransportInfoByName("video_content_name");
3803 EXPECT_EQ(cricket::CONNECTIONROLE_ACTPASS,
3804 vtinfo->description.connection_role);
3805 }
3806
3807 // Verifies that the order of the serialized m-lines follows the order of the
3808 // ContentInfo in SessionDescription, and vise versa for deserialization.
TEST_F(WebRtcSdpTest,MediaContentOrderMaintainedRoundTrip)3809 TEST_F(WebRtcSdpTest, MediaContentOrderMaintainedRoundTrip) {
3810 JsepSessionDescription jdesc(kDummyType);
3811 const std::string media_content_sdps[3] = {kSdpAudioString, kSdpVideoString,
3812 kSdpSctpDataChannelString};
3813 const cricket::MediaType media_types[3] = {cricket::MEDIA_TYPE_AUDIO,
3814 cricket::MEDIA_TYPE_VIDEO,
3815 cricket::MEDIA_TYPE_DATA};
3816
3817 // Verifies all 6 permutations.
3818 for (size_t i = 0; i < 6; ++i) {
3819 size_t media_content_in_sdp[3];
3820 // The index of the first media content.
3821 media_content_in_sdp[0] = i / 2;
3822 // The index of the second media content.
3823 media_content_in_sdp[1] = (media_content_in_sdp[0] + i % 2 + 1) % 3;
3824 // The index of the third media content.
3825 media_content_in_sdp[2] = (media_content_in_sdp[0] + (i + 1) % 2 + 1) % 3;
3826
3827 std::string sdp_string = kSdpSessionString;
3828 for (size_t i = 0; i < 3; ++i)
3829 sdp_string += media_content_sdps[media_content_in_sdp[i]];
3830
3831 EXPECT_TRUE(SdpDeserialize(sdp_string, &jdesc));
3832 cricket::SessionDescription* desc = jdesc.description();
3833 EXPECT_EQ(3u, desc->contents().size());
3834
3835 for (size_t i = 0; i < 3; ++i) {
3836 const cricket::MediaContentDescription* mdesc =
3837 desc->contents()[i].media_description();
3838 EXPECT_EQ(media_types[media_content_in_sdp[i]], mdesc->type());
3839 }
3840
3841 std::string serialized_sdp = webrtc::SdpSerialize(jdesc);
3842 EXPECT_EQ(sdp_string, serialized_sdp);
3843 }
3844 }
3845
TEST_F(WebRtcSdpTest,DeserializeBundleOnlyAttribute)3846 TEST_F(WebRtcSdpTest, DeserializeBundleOnlyAttribute) {
3847 MakeBundleOnlyDescription();
3848 JsepSessionDescription deserialized_description(kDummyType);
3849 ASSERT_TRUE(
3850 SdpDeserialize(kBundleOnlySdpFullString, &deserialized_description));
3851 EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description));
3852 }
3853
3854 // The semantics of "a=bundle-only" are only defined when it's used in
3855 // combination with a 0 port on the m= line. We should ignore it if used with a
3856 // nonzero port.
TEST_F(WebRtcSdpTest,IgnoreBundleOnlyWithNonzeroPort)3857 TEST_F(WebRtcSdpTest, IgnoreBundleOnlyWithNonzeroPort) {
3858 // Make the base bundle-only description but unset the bundle-only flag.
3859 MakeBundleOnlyDescription();
3860 jdesc_.description()->contents()[1].bundle_only = false;
3861
3862 std::string modified_sdp = kBundleOnlySdpFullString;
3863 Replace("m=video 0", "m=video 9", &modified_sdp);
3864 JsepSessionDescription deserialized_description(kDummyType);
3865 ASSERT_TRUE(SdpDeserialize(modified_sdp, &deserialized_description));
3866 EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description));
3867 }
3868
TEST_F(WebRtcSdpTest,SerializeBundleOnlyAttribute)3869 TEST_F(WebRtcSdpTest, SerializeBundleOnlyAttribute) {
3870 MakeBundleOnlyDescription();
3871 TestSerialize(jdesc_);
3872 }
3873
TEST_F(WebRtcSdpTest,DeserializePlanBSessionDescription)3874 TEST_F(WebRtcSdpTest, DeserializePlanBSessionDescription) {
3875 MakePlanBDescription();
3876
3877 JsepSessionDescription deserialized_description(kDummyType);
3878 EXPECT_TRUE(SdpDeserialize(kPlanBSdpFullString, &deserialized_description));
3879
3880 EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description));
3881 }
3882
TEST_F(WebRtcSdpTest,SerializePlanBSessionDescription)3883 TEST_F(WebRtcSdpTest, SerializePlanBSessionDescription) {
3884 MakePlanBDescription();
3885 TestSerialize(jdesc_);
3886 }
3887
TEST_F(WebRtcSdpTest,DeserializeUnifiedPlanSessionDescription)3888 TEST_F(WebRtcSdpTest, DeserializeUnifiedPlanSessionDescription) {
3889 MakeUnifiedPlanDescription();
3890
3891 JsepSessionDescription deserialized_description(kDummyType);
3892 EXPECT_TRUE(
3893 SdpDeserialize(kUnifiedPlanSdpFullString, &deserialized_description));
3894
3895 EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description));
3896 }
3897
TEST_F(WebRtcSdpTest,SerializeUnifiedPlanSessionDescription)3898 TEST_F(WebRtcSdpTest, SerializeUnifiedPlanSessionDescription) {
3899 MakeUnifiedPlanDescription();
3900 TestSerialize(jdesc_);
3901 }
3902
3903 // This tests deserializing a Unified Plan SDP that is compatible with both
3904 // Unified Plan and Plan B style SDP, meaning that it contains both "a=ssrc
3905 // msid" lines and "a=msid " lines. It tests the case for audio/video tracks
3906 // with no stream ids and multiple stream ids. For parsing this, the Unified
3907 // Plan a=msid lines should take priority, because the Plan B style a=ssrc msid
3908 // lines do not support multiple stream ids and no stream ids.
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionSpecialMsid)3909 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionSpecialMsid) {
3910 // Create both msid lines for Plan B and Unified Plan support.
3911 MakeUnifiedPlanDescriptionMultipleStreamIds(
3912 cricket::kMsidSignalingMediaSection |
3913 cricket::kMsidSignalingSsrcAttribute);
3914
3915 JsepSessionDescription deserialized_description(kDummyType);
3916 EXPECT_TRUE(SdpDeserialize(kUnifiedPlanSdpFullStringWithSpecialMsid,
3917 &deserialized_description));
3918
3919 EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description));
3920 EXPECT_EQ(cricket::kMsidSignalingMediaSection |
3921 cricket::kMsidSignalingSsrcAttribute,
3922 deserialized_description.description()->msid_signaling());
3923 }
3924
3925 // Tests the serialization of a Unified Plan SDP that is compatible for both
3926 // Unified Plan and Plan B style SDPs, meaning that it contains both "a=ssrc
3927 // msid" lines and "a=msid " lines. It tests the case for no stream ids and
3928 // multiple stream ids.
TEST_F(WebRtcSdpTest,SerializeSessionDescriptionSpecialMsid)3929 TEST_F(WebRtcSdpTest, SerializeSessionDescriptionSpecialMsid) {
3930 // Create both msid lines for Plan B and Unified Plan support.
3931 MakeUnifiedPlanDescriptionMultipleStreamIds(
3932 cricket::kMsidSignalingMediaSection |
3933 cricket::kMsidSignalingSsrcAttribute);
3934 std::string serialized_sdp = webrtc::SdpSerialize(jdesc_);
3935 // We explicitly test that the serialized SDP string is equal to the hard
3936 // coded SDP string. This is necessary, because in the parser "a=msid" lines
3937 // take priority over "a=ssrc msid" lines. This means if we just used
3938 // TestSerialize(), it could serialize an SDP that omits "a=ssrc msid" lines,
3939 // and still pass, because the deserialized version would be the same.
3940 EXPECT_EQ(kUnifiedPlanSdpFullStringWithSpecialMsid, serialized_sdp);
3941 }
3942
3943 // Tests that a Unified Plan style SDP (does not contain "a=ssrc msid" lines
3944 // that signal stream IDs) is deserialized appropriately. It tests the case for
3945 // no stream ids and multiple stream ids.
TEST_F(WebRtcSdpTest,UnifiedPlanDeserializeSessionDescriptionSpecialMsid)3946 TEST_F(WebRtcSdpTest, UnifiedPlanDeserializeSessionDescriptionSpecialMsid) {
3947 // Only create a=msid lines for strictly Unified Plan stream ID support.
3948 MakeUnifiedPlanDescriptionMultipleStreamIds(
3949 cricket::kMsidSignalingMediaSection);
3950
3951 JsepSessionDescription deserialized_description(kDummyType);
3952 std::string unified_plan_sdp_string =
3953 kUnifiedPlanSdpFullStringWithSpecialMsid;
3954 RemoveSsrcMsidLinesFromSdpString(&unified_plan_sdp_string);
3955 EXPECT_TRUE(
3956 SdpDeserialize(unified_plan_sdp_string, &deserialized_description));
3957
3958 EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description));
3959 }
3960
3961 // Tests that a Unified Plan style SDP (does not contain "a=ssrc msid" lines
3962 // that signal stream IDs) is serialized appropriately. It tests the case for no
3963 // stream ids and multiple stream ids.
TEST_F(WebRtcSdpTest,UnifiedPlanSerializeSessionDescriptionSpecialMsid)3964 TEST_F(WebRtcSdpTest, UnifiedPlanSerializeSessionDescriptionSpecialMsid) {
3965 // Only create a=msid lines for strictly Unified Plan stream ID support.
3966 MakeUnifiedPlanDescriptionMultipleStreamIds(
3967 cricket::kMsidSignalingMediaSection);
3968
3969 TestSerialize(jdesc_);
3970 }
3971
3972 // This tests that a Unified Plan SDP with no a=ssrc lines is
3973 // serialized/deserialized appropriately. In this case the
3974 // MediaContentDescription will contain a StreamParams object that doesn't have
3975 // any SSRCs. Vice versa, this will be created upon deserializing an SDP with no
3976 // SSRC lines.
TEST_F(WebRtcSdpTest,DeserializeUnifiedPlanSessionDescriptionNoSsrcSignaling)3977 TEST_F(WebRtcSdpTest, DeserializeUnifiedPlanSessionDescriptionNoSsrcSignaling) {
3978 MakeUnifiedPlanDescription();
3979 RemoveSsrcSignalingFromStreamParams();
3980 std::string unified_plan_sdp_string = kUnifiedPlanSdpFullString;
3981 RemoveSsrcLinesFromSdpString(&unified_plan_sdp_string);
3982
3983 JsepSessionDescription deserialized_description(kDummyType);
3984 EXPECT_TRUE(
3985 SdpDeserialize(unified_plan_sdp_string, &deserialized_description));
3986 EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description));
3987 }
3988
TEST_F(WebRtcSdpTest,SerializeUnifiedPlanSessionDescriptionNoSsrcSignaling)3989 TEST_F(WebRtcSdpTest, SerializeUnifiedPlanSessionDescriptionNoSsrcSignaling) {
3990 MakeUnifiedPlanDescription();
3991 RemoveSsrcSignalingFromStreamParams();
3992
3993 TestSerialize(jdesc_);
3994 }
3995
TEST_F(WebRtcSdpTest,EmptyDescriptionHasNoMsidSignaling)3996 TEST_F(WebRtcSdpTest, EmptyDescriptionHasNoMsidSignaling) {
3997 JsepSessionDescription jsep_desc(kDummyType);
3998 ASSERT_TRUE(SdpDeserialize(kSdpSessionString, &jsep_desc));
3999 EXPECT_EQ(0, jsep_desc.description()->msid_signaling());
4000 }
4001
TEST_F(WebRtcSdpTest,DataChannelOnlyHasNoMsidSignaling)4002 TEST_F(WebRtcSdpTest, DataChannelOnlyHasNoMsidSignaling) {
4003 JsepSessionDescription jsep_desc(kDummyType);
4004 std::string sdp = kSdpSessionString;
4005 sdp += kSdpSctpDataChannelString;
4006 ASSERT_TRUE(SdpDeserialize(sdp, &jsep_desc));
4007 EXPECT_EQ(0, jsep_desc.description()->msid_signaling());
4008 }
4009
TEST_F(WebRtcSdpTest,PlanBHasSsrcAttributeMsidSignaling)4010 TEST_F(WebRtcSdpTest, PlanBHasSsrcAttributeMsidSignaling) {
4011 JsepSessionDescription jsep_desc(kDummyType);
4012 ASSERT_TRUE(SdpDeserialize(kPlanBSdpFullString, &jsep_desc));
4013 EXPECT_EQ(cricket::kMsidSignalingSsrcAttribute,
4014 jsep_desc.description()->msid_signaling());
4015 }
4016
TEST_F(WebRtcSdpTest,UnifiedPlanHasMediaSectionMsidSignaling)4017 TEST_F(WebRtcSdpTest, UnifiedPlanHasMediaSectionMsidSignaling) {
4018 JsepSessionDescription jsep_desc(kDummyType);
4019 ASSERT_TRUE(SdpDeserialize(kUnifiedPlanSdpFullString, &jsep_desc));
4020 EXPECT_EQ(cricket::kMsidSignalingMediaSection,
4021 jsep_desc.description()->msid_signaling());
4022 }
4023
4024 const char kMediaSectionMsidLine[] = "a=msid:local_stream_1 audio_track_id_1";
4025 const char kSsrcAttributeMsidLine[] =
4026 "a=ssrc:1 msid:local_stream_1 audio_track_id_1";
4027
TEST_F(WebRtcSdpTest,SerializeOnlyMediaSectionMsid)4028 TEST_F(WebRtcSdpTest, SerializeOnlyMediaSectionMsid) {
4029 jdesc_.description()->set_msid_signaling(cricket::kMsidSignalingMediaSection);
4030 std::string sdp = webrtc::SdpSerialize(jdesc_);
4031
4032 EXPECT_NE(std::string::npos, sdp.find(kMediaSectionMsidLine));
4033 EXPECT_EQ(std::string::npos, sdp.find(kSsrcAttributeMsidLine));
4034 }
4035
TEST_F(WebRtcSdpTest,SerializeOnlySsrcAttributeMsid)4036 TEST_F(WebRtcSdpTest, SerializeOnlySsrcAttributeMsid) {
4037 jdesc_.description()->set_msid_signaling(
4038 cricket::kMsidSignalingSsrcAttribute);
4039 std::string sdp = webrtc::SdpSerialize(jdesc_);
4040
4041 EXPECT_EQ(std::string::npos, sdp.find(kMediaSectionMsidLine));
4042 EXPECT_NE(std::string::npos, sdp.find(kSsrcAttributeMsidLine));
4043 }
4044
TEST_F(WebRtcSdpTest,SerializeBothMediaSectionAndSsrcAttributeMsid)4045 TEST_F(WebRtcSdpTest, SerializeBothMediaSectionAndSsrcAttributeMsid) {
4046 jdesc_.description()->set_msid_signaling(
4047 cricket::kMsidSignalingMediaSection |
4048 cricket::kMsidSignalingSsrcAttribute);
4049 std::string sdp = webrtc::SdpSerialize(jdesc_);
4050
4051 EXPECT_NE(std::string::npos, sdp.find(kMediaSectionMsidLine));
4052 EXPECT_NE(std::string::npos, sdp.find(kSsrcAttributeMsidLine));
4053 }
4054
4055 // Regression test for heap overflow bug:
4056 // https://bugs.chromium.org/p/chromium/issues/detail?id=647916
TEST_F(WebRtcSdpTest,DeserializeSctpPortInVideoDescription)4057 TEST_F(WebRtcSdpTest, DeserializeSctpPortInVideoDescription) {
4058 // The issue occurs when the sctp-port attribute is found in a video
4059 // description. The actual heap overflow occurs when parsing the fmtp line.
4060 static const char kSdpWithSctpPortInVideoDescription[] =
4061 "v=0\r\n"
4062 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
4063 "s=-\r\n"
4064 "t=0 0\r\n"
4065 "m=video 9 UDP/DTLS/SCTP 120\r\n"
4066 "a=sctp-port 5000\r\n"
4067 "a=fmtp:108 foo=10\r\n";
4068
4069 ExpectParseFailure(std::string(kSdpWithSctpPortInVideoDescription),
4070 "sctp-port");
4071 }
4072
4073 // Regression test for integer overflow bug:
4074 // https://bugs.chromium.org/p/chromium/issues/detail?id=648071
TEST_F(WebRtcSdpTest,DeserializeLargeBandwidthLimit)4075 TEST_F(WebRtcSdpTest, DeserializeLargeBandwidthLimit) {
4076 // Bandwidth attribute is the max signed 32-bit int, which will get
4077 // multiplied by 1000 and cause int overflow if not careful.
4078 static const char kSdpWithLargeBandwidth[] =
4079 "v=0\r\n"
4080 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
4081 "s=-\r\n"
4082 "t=0 0\r\n"
4083 "m=video 3457 RTP/SAVPF 120\r\n"
4084 "b=AS:2147483647\r\n"
4085 "foo=fail\r\n";
4086
4087 ExpectParseFailure(std::string(kSdpWithLargeBandwidth), "foo=fail");
4088 }
4089
4090 // Similar to the above, except that negative values are illegal, not just
4091 // error-prone as large values are.
4092 // https://bugs.chromium.org/p/chromium/issues/detail?id=675361
TEST_F(WebRtcSdpTest,DeserializingNegativeBandwidthLimitFails)4093 TEST_F(WebRtcSdpTest, DeserializingNegativeBandwidthLimitFails) {
4094 static const char kSdpWithNegativeBandwidth[] =
4095 "v=0\r\n"
4096 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
4097 "s=-\r\n"
4098 "t=0 0\r\n"
4099 "m=video 3457 RTP/SAVPF 120\r\n"
4100 "b=AS:-1000\r\n";
4101
4102 ExpectParseFailure(std::string(kSdpWithNegativeBandwidth), "b=AS:-1000");
4103 }
4104
4105 // An exception to the above rule: a value of -1 for b=AS should just be
4106 // ignored, resulting in "kAutoBandwidth" in the deserialized object.
4107 // Applications historically may be using "b=AS:-1" to mean "no bandwidth
4108 // limit", but this is now what ommitting the attribute entirely will do, so
4109 // ignoring it will have the intended effect.
TEST_F(WebRtcSdpTest,BandwidthLimitOfNegativeOneIgnored)4110 TEST_F(WebRtcSdpTest, BandwidthLimitOfNegativeOneIgnored) {
4111 static const char kSdpWithBandwidthOfNegativeOne[] =
4112 "v=0\r\n"
4113 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
4114 "s=-\r\n"
4115 "t=0 0\r\n"
4116 "m=video 3457 RTP/SAVPF 120\r\n"
4117 "b=AS:-1\r\n";
4118
4119 JsepSessionDescription jdesc_output(kDummyType);
4120 EXPECT_TRUE(SdpDeserialize(kSdpWithBandwidthOfNegativeOne, &jdesc_output));
4121 const VideoContentDescription* vcd =
4122 GetFirstVideoContentDescription(jdesc_output.description());
4123 ASSERT_TRUE(vcd);
4124 EXPECT_EQ(cricket::kAutoBandwidth, vcd->bandwidth());
4125 }
4126
4127 // Test that "ufrag"/"pwd" in the candidate line itself are ignored, and only
4128 // the "a=ice-ufrag"/"a=ice-pwd" attributes are used.
4129 // Regression test for:
4130 // https://bugs.chromium.org/p/chromium/issues/detail?id=681286
TEST_F(WebRtcSdpTest,IceCredentialsInCandidateStringIgnored)4131 TEST_F(WebRtcSdpTest, IceCredentialsInCandidateStringIgnored) {
4132 // Important piece is "ufrag foo pwd bar".
4133 static const char kSdpWithIceCredentialsInCandidateString[] =
4134 "v=0\r\n"
4135 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
4136 "s=-\r\n"
4137 "t=0 0\r\n"
4138 "m=audio 9 RTP/SAVPF 111\r\n"
4139 "c=IN IP4 0.0.0.0\r\n"
4140 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
4141 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
4142 "a=rtpmap:111 opus/48000/2\r\n"
4143 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host "
4144 "generation 2 ufrag foo pwd bar\r\n";
4145
4146 JsepSessionDescription jdesc_output(kDummyType);
4147 EXPECT_TRUE(
4148 SdpDeserialize(kSdpWithIceCredentialsInCandidateString, &jdesc_output));
4149 const IceCandidateCollection* candidates = jdesc_output.candidates(0);
4150 ASSERT_NE(nullptr, candidates);
4151 ASSERT_EQ(1U, candidates->count());
4152 cricket::Candidate c = candidates->at(0)->candidate();
4153 EXPECT_EQ("ufrag_voice", c.username());
4154 EXPECT_EQ("pwd_voice", c.password());
4155 }
4156
4157 // Test that attribute lines "a=ice-ufrag-something"/"a=ice-pwd-something" are
4158 // ignored, and only the "a=ice-ufrag"/"a=ice-pwd" attributes are used.
4159 // Regression test for:
4160 // https://bugs.chromium.org/p/webrtc/issues/detail?id=9712
TEST_F(WebRtcSdpTest,AttributeWithPartialMatchingNameIsIgnored)4161 TEST_F(WebRtcSdpTest, AttributeWithPartialMatchingNameIsIgnored) {
4162 static const char kSdpWithFooIceCredentials[] =
4163 "v=0\r\n"
4164 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
4165 "s=-\r\n"
4166 "t=0 0\r\n"
4167 "m=audio 9 RTP/SAVPF 111\r\n"
4168 "c=IN IP4 0.0.0.0\r\n"
4169 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
4170 "a=ice-ufrag-something:foo\r\na=ice-pwd-something:bar\r\n"
4171 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
4172 "a=rtpmap:111 opus/48000/2\r\n"
4173 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host "
4174 "generation 2\r\n";
4175
4176 JsepSessionDescription jdesc_output(kDummyType);
4177 EXPECT_TRUE(SdpDeserialize(kSdpWithFooIceCredentials, &jdesc_output));
4178 const IceCandidateCollection* candidates = jdesc_output.candidates(0);
4179 ASSERT_NE(nullptr, candidates);
4180 ASSERT_EQ(1U, candidates->count());
4181 cricket::Candidate c = candidates->at(0)->candidate();
4182 EXPECT_EQ("ufrag_voice", c.username());
4183 EXPECT_EQ("pwd_voice", c.password());
4184 }
4185
4186 // Test that SDP with an invalid port number in "a=candidate" lines is
4187 // rejected, without crashing.
4188 // Regression test for:
4189 // https://bugs.chromium.org/p/chromium/issues/detail?id=677029
TEST_F(WebRtcSdpTest,DeserializeInvalidPortInCandidateAttribute)4190 TEST_F(WebRtcSdpTest, DeserializeInvalidPortInCandidateAttribute) {
4191 static const char kSdpWithInvalidCandidatePort[] =
4192 "v=0\r\n"
4193 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
4194 "s=-\r\n"
4195 "t=0 0\r\n"
4196 "m=audio 9 RTP/SAVPF 111\r\n"
4197 "c=IN IP4 0.0.0.0\r\n"
4198 "a=rtcp:9 IN IP4 0.0.0.0\r\n"
4199 "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n"
4200 "a=rtpmap:111 opus/48000/2\r\n"
4201 "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 12345678 typ host "
4202 "generation 2 raddr 192.168.1.1 rport 87654321\r\n";
4203
4204 JsepSessionDescription jdesc_output(kDummyType);
4205 EXPECT_FALSE(SdpDeserialize(kSdpWithInvalidCandidatePort, &jdesc_output));
4206 }
4207
4208 // Test that "a=msid" with a missing track ID is rejected and doesn't crash.
4209 // Regression test for:
4210 // https://bugs.chromium.org/p/chromium/issues/detail?id=686405
TEST_F(WebRtcSdpTest,DeserializeMsidAttributeWithMissingTrackId)4211 TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithMissingTrackId) {
4212 static const char kSdpWithMissingTrackId[] =
4213 "v=0\r\n"
4214 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
4215 "s=-\r\n"
4216 "t=0 0\r\n"
4217 "m=audio 9 RTP/SAVPF 111\r\n"
4218 "c=IN IP4 0.0.0.0\r\n"
4219 "a=rtpmap:111 opus/48000/2\r\n"
4220 "a=msid:stream_id \r\n";
4221
4222 JsepSessionDescription jdesc_output(kDummyType);
4223 EXPECT_FALSE(SdpDeserialize(kSdpWithMissingTrackId, &jdesc_output));
4224 }
4225
TEST_F(WebRtcSdpTest,DeserializeMsidAttributeWithMissingStreamId)4226 TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithMissingStreamId) {
4227 static const char kSdpWithMissingStreamId[] =
4228 "v=0\r\n"
4229 "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n"
4230 "s=-\r\n"
4231 "t=0 0\r\n"
4232 "m=audio 9 RTP/SAVPF 111\r\n"
4233 "c=IN IP4 0.0.0.0\r\n"
4234 "a=rtpmap:111 opus/48000/2\r\n"
4235 "a=msid: track_id\r\n";
4236
4237 JsepSessionDescription jdesc_output(kDummyType);
4238 EXPECT_FALSE(SdpDeserialize(kSdpWithMissingStreamId, &jdesc_output));
4239 }
4240
4241 // Tests that if both session-level address and media-level address exist, use
4242 // the media-level address.
TEST_F(WebRtcSdpTest,ParseConnectionData)4243 TEST_F(WebRtcSdpTest, ParseConnectionData) {
4244 JsepSessionDescription jsep_desc(kDummyType);
4245
4246 // Sesssion-level address.
4247 std::string sdp = kSdpFullString;
4248 InjectAfter("s=-\r\n", "c=IN IP4 192.168.0.3\r\n", &sdp);
4249 EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc));
4250
4251 const auto& content1 = jsep_desc.description()->contents()[0];
4252 EXPECT_EQ("74.125.127.126:2345",
4253 content1.media_description()->connection_address().ToString());
4254 const auto& content2 = jsep_desc.description()->contents()[1];
4255 EXPECT_EQ("74.125.224.39:3457",
4256 content2.media_description()->connection_address().ToString());
4257 }
4258
4259 // Tests that the session-level connection address will be used if the media
4260 // level-addresses are not specified.
TEST_F(WebRtcSdpTest,ParseConnectionDataSessionLevelOnly)4261 TEST_F(WebRtcSdpTest, ParseConnectionDataSessionLevelOnly) {
4262 JsepSessionDescription jsep_desc(kDummyType);
4263
4264 // Sesssion-level address.
4265 std::string sdp = kSdpString;
4266 InjectAfter("s=-\r\n", "c=IN IP4 192.168.0.3\r\n", &sdp);
4267 // Remove the media level addresses.
4268 Replace("c=IN IP4 0.0.0.0\r\n", "", &sdp);
4269 Replace("c=IN IP4 0.0.0.0\r\n", "", &sdp);
4270 EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc));
4271
4272 const auto& content1 = jsep_desc.description()->contents()[0];
4273 EXPECT_EQ("192.168.0.3:9",
4274 content1.media_description()->connection_address().ToString());
4275 const auto& content2 = jsep_desc.description()->contents()[1];
4276 EXPECT_EQ("192.168.0.3:9",
4277 content2.media_description()->connection_address().ToString());
4278 }
4279
TEST_F(WebRtcSdpTest,ParseConnectionDataIPv6)4280 TEST_F(WebRtcSdpTest, ParseConnectionDataIPv6) {
4281 JsepSessionDescription jsep_desc(kDummyType);
4282
4283 std::string sdp = kSdpString;
4284 EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc));
4285 Replace("m=audio 9 RTP/SAVPF 111 103 104\r\nc=IN IP4 0.0.0.0\r\n",
4286 "m=audio 9 RTP/SAVPF 111 103 104\r\nc=IN IP6 "
4287 "2001:0db8:85a3:0000:0000:8a2e:0370:7335\r\n",
4288 &sdp);
4289 Replace("m=video 9 RTP/SAVPF 120\r\nc=IN IP4 0.0.0.0\r\n",
4290 "m=video 9 RTP/SAVPF 120\r\nc=IN IP6 "
4291 "2001:0db8:85a3:0000:0000:8a2e:0370:7336\r\n",
4292 &sdp);
4293 EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc));
4294 const auto& content1 = jsep_desc.description()->contents()[0];
4295 EXPECT_EQ("[2001:db8:85a3::8a2e:370:7335]:9",
4296 content1.media_description()->connection_address().ToString());
4297 const auto& content2 = jsep_desc.description()->contents()[1];
4298 EXPECT_EQ("[2001:db8:85a3::8a2e:370:7336]:9",
4299 content2.media_description()->connection_address().ToString());
4300 }
4301
4302 // Test that a c= line that contains a hostname connection address can be
4303 // parsed.
TEST_F(WebRtcSdpTest,ParseConnectionDataWithHostnameConnectionAddress)4304 TEST_F(WebRtcSdpTest, ParseConnectionDataWithHostnameConnectionAddress) {
4305 JsepSessionDescription jsep_desc(kDummyType);
4306 std::string sdp = kSdpString;
4307 EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc));
4308
4309 sdp = kSdpString;
4310 Replace("c=IN IP4 0.0.0.0\r\n", "c=IN IP4 example.local\r\n", &sdp);
4311 Replace("c=IN IP4 0.0.0.0\r\n", "c=IN IP4 example.local\r\n", &sdp);
4312 ASSERT_TRUE(SdpDeserialize(sdp, &jsep_desc));
4313
4314 ASSERT_NE(nullptr, jsep_desc.description());
4315 const auto& content1 = jsep_desc.description()->contents()[0];
4316 EXPECT_EQ("example.local:9",
4317 content1.media_description()->connection_address().ToString());
4318 const auto& content2 = jsep_desc.description()->contents()[1];
4319 EXPECT_EQ("example.local:9",
4320 content2.media_description()->connection_address().ToString());
4321 }
4322
4323 // Test that the invalid or unsupported connection data cannot be parsed.
TEST_F(WebRtcSdpTest,ParseConnectionDataFailure)4324 TEST_F(WebRtcSdpTest, ParseConnectionDataFailure) {
4325 JsepSessionDescription jsep_desc(kDummyType);
4326 std::string sdp = kSdpString;
4327 EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc));
4328
4329 // Unsupported multicast IPv4 address.
4330 sdp = kSdpFullString;
4331 Replace("c=IN IP4 74.125.224.39\r\n", "c=IN IP4 74.125.224.39/127\r\n", &sdp);
4332 EXPECT_FALSE(SdpDeserialize(sdp, &jsep_desc));
4333
4334 // Unsupported multicast IPv6 address.
4335 sdp = kSdpFullString;
4336 Replace("c=IN IP4 74.125.224.39\r\n", "c=IN IP6 ::1/3\r\n", &sdp);
4337 EXPECT_FALSE(SdpDeserialize(sdp, &jsep_desc));
4338
4339 // Mismatched address type.
4340 sdp = kSdpFullString;
4341 Replace("c=IN IP4 74.125.224.39\r\n", "c=IN IP6 74.125.224.39\r\n", &sdp);
4342 EXPECT_FALSE(SdpDeserialize(sdp, &jsep_desc));
4343
4344 sdp = kSdpFullString;
4345 Replace("c=IN IP4 74.125.224.39\r\n",
4346 "c=IN IP4 2001:0db8:85a3:0000:0000:8a2e:0370:7334\r\n", &sdp);
4347 EXPECT_FALSE(SdpDeserialize(sdp, &jsep_desc));
4348 }
4349
TEST_F(WebRtcSdpTest,SerializeAndDeserializeWithConnectionAddress)4350 TEST_F(WebRtcSdpTest, SerializeAndDeserializeWithConnectionAddress) {
4351 JsepSessionDescription expected_jsep(kDummyType);
4352 MakeDescriptionWithoutCandidates(&expected_jsep);
4353 // Serialization.
4354 std::string message = webrtc::SdpSerialize(expected_jsep);
4355 // Deserialization.
4356 JsepSessionDescription jdesc(kDummyType);
4357 EXPECT_TRUE(SdpDeserialize(message, &jdesc));
4358 auto audio_desc = jdesc.description()
4359 ->GetContentByName(kAudioContentName)
4360 ->media_description();
4361 auto video_desc = jdesc.description()
4362 ->GetContentByName(kVideoContentName)
4363 ->media_description();
4364 EXPECT_EQ(audio_desc_->connection_address().ToString(),
4365 audio_desc->connection_address().ToString());
4366 EXPECT_EQ(video_desc_->connection_address().ToString(),
4367 video_desc->connection_address().ToString());
4368 }
4369
4370 // RFC4566 says "If a session has no meaningful name, the value "s= " SHOULD be
4371 // used (i.e., a single space as the session name)." So we should accept that.
TEST_F(WebRtcSdpTest,DeserializeEmptySessionName)4372 TEST_F(WebRtcSdpTest, DeserializeEmptySessionName) {
4373 JsepSessionDescription jsep_desc(kDummyType);
4374 std::string sdp = kSdpString;
4375 Replace("s=-\r\n", "s= \r\n", &sdp);
4376 EXPECT_TRUE(SdpDeserialize(sdp, &jsep_desc));
4377 }
4378
4379 // Simulcast malformed input test for invalid format.
TEST_F(WebRtcSdpTest,DeserializeSimulcastNegative_EmptyAttribute)4380 TEST_F(WebRtcSdpTest, DeserializeSimulcastNegative_EmptyAttribute) {
4381 ExpectParseFailureWithNewLines("a=ssrc:3 label:video_track_id_1\r\n",
4382 "a=simulcast:\r\n", "a=simulcast:");
4383 }
4384
4385 // Tests that duplicate simulcast entries in the SDP triggers a parse failure.
TEST_F(WebRtcSdpTest,DeserializeSimulcastNegative_DuplicateAttribute)4386 TEST_F(WebRtcSdpTest, DeserializeSimulcastNegative_DuplicateAttribute) {
4387 ExpectParseFailureWithNewLines("a=ssrc:3 label:video_track_id_1\r\n",
4388 "a=simulcast:send 1\r\na=simulcast:recv 2\r\n",
4389 "a=simulcast:");
4390 }
4391
4392 // Validates that deserialization uses the a=simulcast: attribute
TEST_F(WebRtcSdpTest,TestDeserializeSimulcastAttribute)4393 TEST_F(WebRtcSdpTest, TestDeserializeSimulcastAttribute) {
4394 std::string sdp = kUnifiedPlanSdpFullStringNoSsrc;
4395 sdp += "a=rid:1 send\r\n";
4396 sdp += "a=rid:2 send\r\n";
4397 sdp += "a=rid:3 send\r\n";
4398 sdp += "a=rid:4 recv\r\n";
4399 sdp += "a=rid:5 recv\r\n";
4400 sdp += "a=rid:6 recv\r\n";
4401 sdp += "a=simulcast:send 1,2;3 recv 4;5;6\r\n";
4402 JsepSessionDescription output(kDummyType);
4403 SdpParseError error;
4404 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4405 const cricket::ContentInfos& contents = output.description()->contents();
4406 const cricket::MediaContentDescription* media =
4407 contents.back().media_description();
4408 EXPECT_TRUE(media->HasSimulcast());
4409 EXPECT_EQ(2ul, media->simulcast_description().send_layers().size());
4410 EXPECT_EQ(3ul, media->simulcast_description().receive_layers().size());
4411 EXPECT_FALSE(media->streams().empty());
4412 const std::vector<RidDescription>& rids = media->streams()[0].rids();
4413 CompareRidDescriptionIds(rids, {"1", "2", "3"});
4414 }
4415
4416 // Validates that deserialization removes rids that do not appear in SDP
TEST_F(WebRtcSdpTest,TestDeserializeSimulcastAttributeRemovesUnknownRids)4417 TEST_F(WebRtcSdpTest, TestDeserializeSimulcastAttributeRemovesUnknownRids) {
4418 std::string sdp = kUnifiedPlanSdpFullStringNoSsrc;
4419 sdp += "a=rid:1 send\r\n";
4420 sdp += "a=rid:3 send\r\n";
4421 sdp += "a=rid:4 recv\r\n";
4422 sdp += "a=simulcast:send 1,2;3 recv 4;5,6\r\n";
4423 JsepSessionDescription output(kDummyType);
4424 SdpParseError error;
4425 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4426 const cricket::ContentInfos& contents = output.description()->contents();
4427 const cricket::MediaContentDescription* media =
4428 contents.back().media_description();
4429 EXPECT_TRUE(media->HasSimulcast());
4430 const SimulcastDescription& simulcast = media->simulcast_description();
4431 EXPECT_EQ(2ul, simulcast.send_layers().size());
4432 EXPECT_EQ(1ul, simulcast.receive_layers().size());
4433
4434 std::vector<SimulcastLayer> all_send_layers =
4435 simulcast.send_layers().GetAllLayers();
4436 EXPECT_EQ(2ul, all_send_layers.size());
4437 EXPECT_EQ(0,
4438 absl::c_count_if(all_send_layers, [](const SimulcastLayer& layer) {
4439 return layer.rid == "2";
4440 }));
4441
4442 std::vector<SimulcastLayer> all_receive_layers =
4443 simulcast.receive_layers().GetAllLayers();
4444 ASSERT_EQ(1ul, all_receive_layers.size());
4445 EXPECT_EQ("4", all_receive_layers[0].rid);
4446
4447 EXPECT_FALSE(media->streams().empty());
4448 const std::vector<RidDescription>& rids = media->streams()[0].rids();
4449 CompareRidDescriptionIds(rids, {"1", "3"});
4450 }
4451
4452 // Validates that Simulcast removes rids that appear in both send and receive.
TEST_F(WebRtcSdpTest,TestDeserializeSimulcastAttributeRemovesDuplicateSendReceive)4453 TEST_F(WebRtcSdpTest,
4454 TestDeserializeSimulcastAttributeRemovesDuplicateSendReceive) {
4455 std::string sdp = kUnifiedPlanSdpFullStringNoSsrc;
4456 sdp += "a=rid:1 send\r\n";
4457 sdp += "a=rid:2 send\r\n";
4458 sdp += "a=rid:3 send\r\n";
4459 sdp += "a=rid:4 recv\r\n";
4460 sdp += "a=simulcast:send 1;2;3 recv 2;4\r\n";
4461 JsepSessionDescription output(kDummyType);
4462 SdpParseError error;
4463 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4464 const cricket::ContentInfos& contents = output.description()->contents();
4465 const cricket::MediaContentDescription* media =
4466 contents.back().media_description();
4467 EXPECT_TRUE(media->HasSimulcast());
4468 const SimulcastDescription& simulcast = media->simulcast_description();
4469 EXPECT_EQ(2ul, simulcast.send_layers().size());
4470 EXPECT_EQ(1ul, simulcast.receive_layers().size());
4471 EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size());
4472 EXPECT_EQ(1ul, simulcast.receive_layers().GetAllLayers().size());
4473
4474 EXPECT_FALSE(media->streams().empty());
4475 const std::vector<RidDescription>& rids = media->streams()[0].rids();
4476 CompareRidDescriptionIds(rids, {"1", "3"});
4477 }
4478
4479 // Ignores empty rid line.
TEST_F(WebRtcSdpTest,TestDeserializeIgnoresEmptyRidLines)4480 TEST_F(WebRtcSdpTest, TestDeserializeIgnoresEmptyRidLines) {
4481 std::string sdp = kUnifiedPlanSdpFullStringNoSsrc;
4482 sdp += "a=rid:1 send\r\n";
4483 sdp += "a=rid:2 send\r\n";
4484 sdp += "a=rid\r\n"; // Should ignore this line.
4485 sdp += "a=rid:\r\n"; // Should ignore this line.
4486 sdp += "a=simulcast:send 1;2\r\n";
4487 JsepSessionDescription output(kDummyType);
4488 SdpParseError error;
4489 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4490 const cricket::ContentInfos& contents = output.description()->contents();
4491 const cricket::MediaContentDescription* media =
4492 contents.back().media_description();
4493 EXPECT_TRUE(media->HasSimulcast());
4494 const SimulcastDescription& simulcast = media->simulcast_description();
4495 EXPECT_TRUE(simulcast.receive_layers().empty());
4496 EXPECT_EQ(2ul, simulcast.send_layers().size());
4497 EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size());
4498
4499 EXPECT_FALSE(media->streams().empty());
4500 const std::vector<RidDescription>& rids = media->streams()[0].rids();
4501 CompareRidDescriptionIds(rids, {"1", "2"});
4502 }
4503
4504 // Ignores malformed rid lines.
TEST_F(WebRtcSdpTest,TestDeserializeIgnoresMalformedRidLines)4505 TEST_F(WebRtcSdpTest, TestDeserializeIgnoresMalformedRidLines) {
4506 std::string sdp = kUnifiedPlanSdpFullStringNoSsrc;
4507 sdp += "a=rid:1 send pt=\r\n"; // Should ignore this line.
4508 sdp += "a=rid:2 receive\r\n"; // Should ignore this line.
4509 sdp += "a=rid:3 max-width=720;pt=120\r\n"; // Should ignore this line.
4510 sdp += "a=rid:4\r\n"; // Should ignore this line.
4511 sdp += "a=rid:5 send\r\n";
4512 sdp += "a=simulcast:send 1,2,3;4,5\r\n";
4513 JsepSessionDescription output(kDummyType);
4514 SdpParseError error;
4515 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4516 const cricket::ContentInfos& contents = output.description()->contents();
4517 const cricket::MediaContentDescription* media =
4518 contents.back().media_description();
4519 EXPECT_TRUE(media->HasSimulcast());
4520 const SimulcastDescription& simulcast = media->simulcast_description();
4521 EXPECT_TRUE(simulcast.receive_layers().empty());
4522 EXPECT_EQ(1ul, simulcast.send_layers().size());
4523 EXPECT_EQ(1ul, simulcast.send_layers().GetAllLayers().size());
4524
4525 EXPECT_FALSE(media->streams().empty());
4526 const std::vector<RidDescription>& rids = media->streams()[0].rids();
4527 CompareRidDescriptionIds(rids, {"5"});
4528 }
4529
4530 // Removes RIDs that specify a different format than the m= section.
TEST_F(WebRtcSdpTest,TestDeserializeRemovesRidsWithInvalidCodec)4531 TEST_F(WebRtcSdpTest, TestDeserializeRemovesRidsWithInvalidCodec) {
4532 std::string sdp = kUnifiedPlanSdpFullStringNoSsrc;
4533 sdp += "a=rid:1 send pt=121,120\r\n"; // Should remove 121 and keep RID.
4534 sdp += "a=rid:2 send pt=121\r\n"; // Should remove RID altogether.
4535 sdp += "a=simulcast:send 1;2\r\n";
4536 JsepSessionDescription output(kDummyType);
4537 SdpParseError error;
4538 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4539 const cricket::ContentInfos& contents = output.description()->contents();
4540 const cricket::MediaContentDescription* media =
4541 contents.back().media_description();
4542 EXPECT_TRUE(media->HasSimulcast());
4543 const SimulcastDescription& simulcast = media->simulcast_description();
4544 EXPECT_TRUE(simulcast.receive_layers().empty());
4545 EXPECT_EQ(1ul, simulcast.send_layers().size());
4546 EXPECT_EQ(1ul, simulcast.send_layers().GetAllLayers().size());
4547 EXPECT_EQ("1", simulcast.send_layers()[0][0].rid);
4548 EXPECT_EQ(1ul, media->streams().size());
4549 const std::vector<RidDescription>& rids = media->streams()[0].rids();
4550 EXPECT_EQ(1ul, rids.size());
4551 EXPECT_EQ("1", rids[0].rid);
4552 EXPECT_EQ(1ul, rids[0].payload_types.size());
4553 EXPECT_EQ(120, rids[0].payload_types[0]);
4554 }
4555
4556 // Ignores duplicate rid lines
TEST_F(WebRtcSdpTest,TestDeserializeIgnoresDuplicateRidLines)4557 TEST_F(WebRtcSdpTest, TestDeserializeIgnoresDuplicateRidLines) {
4558 std::string sdp = kUnifiedPlanSdpFullStringNoSsrc;
4559 sdp += "a=rid:1 send\r\n";
4560 sdp += "a=rid:2 send\r\n";
4561 sdp += "a=rid:2 send\r\n";
4562 sdp += "a=rid:3 send\r\n";
4563 sdp += "a=rid:4 recv\r\n";
4564 sdp += "a=simulcast:send 1,2;3 recv 4\r\n";
4565 JsepSessionDescription output(kDummyType);
4566 SdpParseError error;
4567 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4568 const cricket::ContentInfos& contents = output.description()->contents();
4569 const cricket::MediaContentDescription* media =
4570 contents.back().media_description();
4571 EXPECT_TRUE(media->HasSimulcast());
4572 const SimulcastDescription& simulcast = media->simulcast_description();
4573 EXPECT_EQ(2ul, simulcast.send_layers().size());
4574 EXPECT_EQ(1ul, simulcast.receive_layers().size());
4575 EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size());
4576 EXPECT_EQ(1ul, simulcast.receive_layers().GetAllLayers().size());
4577
4578 EXPECT_FALSE(media->streams().empty());
4579 const std::vector<RidDescription>& rids = media->streams()[0].rids();
4580 CompareRidDescriptionIds(rids, {"1", "3"});
4581 }
4582
TEST_F(WebRtcSdpTest,TestDeserializeRidSendDirection)4583 TEST_F(WebRtcSdpTest, TestDeserializeRidSendDirection) {
4584 std::string sdp = kUnifiedPlanSdpFullStringNoSsrc;
4585 sdp += "a=rid:1 recv\r\n";
4586 sdp += "a=rid:2 recv\r\n";
4587 sdp += "a=simulcast:send 1;2\r\n";
4588 JsepSessionDescription output(kDummyType);
4589 SdpParseError error;
4590 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4591 const cricket::ContentInfos& contents = output.description()->contents();
4592 const cricket::MediaContentDescription* media =
4593 contents.back().media_description();
4594 EXPECT_FALSE(media->HasSimulcast());
4595 }
4596
TEST_F(WebRtcSdpTest,TestDeserializeRidRecvDirection)4597 TEST_F(WebRtcSdpTest, TestDeserializeRidRecvDirection) {
4598 std::string sdp = kUnifiedPlanSdpFullStringNoSsrc;
4599 sdp += "a=rid:1 send\r\n";
4600 sdp += "a=rid:2 send\r\n";
4601 sdp += "a=simulcast:recv 1;2\r\n";
4602 JsepSessionDescription output(kDummyType);
4603 SdpParseError error;
4604 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4605 const cricket::ContentInfos& contents = output.description()->contents();
4606 const cricket::MediaContentDescription* media =
4607 contents.back().media_description();
4608 EXPECT_FALSE(media->HasSimulcast());
4609 }
4610
TEST_F(WebRtcSdpTest,TestDeserializeIgnoresWrongRidDirectionLines)4611 TEST_F(WebRtcSdpTest, TestDeserializeIgnoresWrongRidDirectionLines) {
4612 std::string sdp = kUnifiedPlanSdpFullStringNoSsrc;
4613 sdp += "a=rid:1 send\r\n";
4614 sdp += "a=rid:2 send\r\n";
4615 sdp += "a=rid:3 send\r\n";
4616 sdp += "a=rid:4 recv\r\n";
4617 sdp += "a=rid:5 recv\r\n";
4618 sdp += "a=rid:6 recv\r\n";
4619 sdp += "a=simulcast:send 1;5;3 recv 4;2;6\r\n";
4620 JsepSessionDescription output(kDummyType);
4621 SdpParseError error;
4622 EXPECT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4623 const cricket::ContentInfos& contents = output.description()->contents();
4624 const cricket::MediaContentDescription* media =
4625 contents.back().media_description();
4626 EXPECT_TRUE(media->HasSimulcast());
4627 const SimulcastDescription& simulcast = media->simulcast_description();
4628 EXPECT_EQ(2ul, simulcast.send_layers().size());
4629 EXPECT_EQ(2ul, simulcast.receive_layers().size());
4630 EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size());
4631 EXPECT_EQ(2ul, simulcast.receive_layers().GetAllLayers().size());
4632
4633 EXPECT_FALSE(media->streams().empty());
4634 const std::vector<RidDescription>& rids = media->streams()[0].rids();
4635 CompareRidDescriptionIds(rids, {"1", "3"});
4636 }
4637
4638 // Simulcast serialization integration test.
4639 // This test will serialize and deserialize the description and compare.
4640 // More detailed tests for parsing simulcast can be found in
4641 // unit tests for SdpSerializer.
TEST_F(WebRtcSdpTest,SerializeSimulcast_ComplexSerialization)4642 TEST_F(WebRtcSdpTest, SerializeSimulcast_ComplexSerialization) {
4643 MakeUnifiedPlanDescription(/* use_ssrcs = */ false);
4644 auto description = jdesc_.description();
4645 auto media = description->GetContentDescriptionByName(kVideoContentName3);
4646 ASSERT_EQ(media->streams().size(), 1ul);
4647 StreamParams& send_stream = media->mutable_streams()[0];
4648 std::vector<RidDescription> send_rids;
4649 send_rids.push_back(RidDescription("1", RidDirection::kSend));
4650 send_rids.push_back(RidDescription("2", RidDirection::kSend));
4651 send_rids.push_back(RidDescription("3", RidDirection::kSend));
4652 send_rids.push_back(RidDescription("4", RidDirection::kSend));
4653 send_stream.set_rids(send_rids);
4654 std::vector<RidDescription> receive_rids;
4655 receive_rids.push_back(RidDescription("5", RidDirection::kReceive));
4656 receive_rids.push_back(RidDescription("6", RidDirection::kReceive));
4657 receive_rids.push_back(RidDescription("7", RidDirection::kReceive));
4658 media->set_receive_rids(receive_rids);
4659
4660 SimulcastDescription& simulcast = media->simulcast_description();
4661 simulcast.send_layers().AddLayerWithAlternatives(
4662 {SimulcastLayer("2", false), SimulcastLayer("1", true)});
4663 simulcast.send_layers().AddLayerWithAlternatives(
4664 {SimulcastLayer("4", false), SimulcastLayer("3", false)});
4665 simulcast.receive_layers().AddLayer({SimulcastLayer("5", false)});
4666 simulcast.receive_layers().AddLayer({SimulcastLayer("6", false)});
4667 simulcast.receive_layers().AddLayer({SimulcastLayer("7", false)});
4668
4669 TestSerialize(jdesc_);
4670 }
4671
4672 // Test that the content name is empty if the media section does not have an
4673 // a=mid line.
TEST_F(WebRtcSdpTest,ParseNoMid)4674 TEST_F(WebRtcSdpTest, ParseNoMid) {
4675 std::string sdp = kSdpString;
4676 Replace("a=mid:audio_content_name\r\n", "", &sdp);
4677 Replace("a=mid:video_content_name\r\n", "", &sdp);
4678
4679 JsepSessionDescription output(kDummyType);
4680 SdpParseError error;
4681 ASSERT_TRUE(webrtc::SdpDeserialize(sdp, &output, &error));
4682
4683 EXPECT_THAT(output.description()->contents(),
4684 ElementsAre(Field("name", &cricket::ContentInfo::name, ""),
4685 Field("name", &cricket::ContentInfo::name, "")));
4686 }
4687
TEST_F(WebRtcSdpTest,SerializeWithDefaultSctpProtocol)4688 TEST_F(WebRtcSdpTest, SerializeWithDefaultSctpProtocol) {
4689 AddSctpDataChannel(false); // Don't use sctpmap
4690 JsepSessionDescription jsep_desc(kDummyType);
4691 MakeDescriptionWithoutCandidates(&jsep_desc);
4692 std::string message = webrtc::SdpSerialize(jsep_desc);
4693 EXPECT_NE(std::string::npos,
4694 message.find(cricket::kMediaProtocolUdpDtlsSctp));
4695 }
4696
TEST_F(WebRtcSdpTest,DeserializeWithAllSctpProtocols)4697 TEST_F(WebRtcSdpTest, DeserializeWithAllSctpProtocols) {
4698 AddSctpDataChannel(false);
4699 std::string protocols[] = {cricket::kMediaProtocolDtlsSctp,
4700 cricket::kMediaProtocolUdpDtlsSctp,
4701 cricket::kMediaProtocolTcpDtlsSctp};
4702 for (const auto& protocol : protocols) {
4703 sctp_desc_->set_protocol(protocol);
4704 JsepSessionDescription jsep_desc(kDummyType);
4705 MakeDescriptionWithoutCandidates(&jsep_desc);
4706 std::string message = webrtc::SdpSerialize(jsep_desc);
4707 EXPECT_NE(std::string::npos, message.find(protocol));
4708 JsepSessionDescription jsep_output(kDummyType);
4709 SdpParseError error;
4710 EXPECT_TRUE(webrtc::SdpDeserialize(message, &jsep_output, &error));
4711 }
4712 }
4713
4714 // According to https://tools.ietf.org/html/rfc5576#section-6.1, the CNAME
4715 // attribute is mandatory, but we relax that restriction.
TEST_F(WebRtcSdpTest,DeserializeSessionDescriptionWithoutCname)4716 TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutCname) {
4717 std::string sdp_without_cname = kSdpFullString;
4718 Replace("a=ssrc:1 cname:stream_1_cname\r\n", "", &sdp_without_cname);
4719 JsepSessionDescription new_jdesc(kDummyType);
4720 EXPECT_TRUE(SdpDeserialize(sdp_without_cname, &new_jdesc));
4721
4722 audio_desc_->mutable_streams()[0].cname = "";
4723 ASSERT_TRUE(jdesc_.Initialize(desc_.Clone(), jdesc_.session_id(),
4724 jdesc_.session_version()));
4725 EXPECT_TRUE(CompareSessionDescription(jdesc_, new_jdesc));
4726 }
4727
TEST_F(WebRtcSdpTest,DeserializeSdpWithUnsupportedMediaType)4728 TEST_F(WebRtcSdpTest, DeserializeSdpWithUnsupportedMediaType) {
4729 std::string sdp = kSdpSessionString;
4730 sdp +=
4731 "m=bogus 9 RTP/SAVPF 0 8\r\n"
4732 "c=IN IP4 0.0.0.0\r\n"
4733 "a=mid:bogusmid\r\n";
4734 sdp +=
4735 "m=audio/something 9 RTP/SAVPF 0 8\r\n"
4736 "c=IN IP4 0.0.0.0\r\n"
4737 "a=mid:somethingmid\r\n";
4738
4739 JsepSessionDescription jdesc_output(kDummyType);
4740 EXPECT_TRUE(SdpDeserialize(sdp, &jdesc_output));
4741
4742 ASSERT_EQ(2u, jdesc_output.description()->contents().size());
4743 ASSERT_NE(nullptr, jdesc_output.description()
4744 ->contents()[0]
4745 .media_description()
4746 ->as_unsupported());
4747 ASSERT_NE(nullptr, jdesc_output.description()
4748 ->contents()[1]
4749 .media_description()
4750 ->as_unsupported());
4751
4752 EXPECT_TRUE(jdesc_output.description()->contents()[0].rejected);
4753 EXPECT_TRUE(jdesc_output.description()->contents()[1].rejected);
4754
4755 EXPECT_EQ(jdesc_output.description()->contents()[0].name, "bogusmid");
4756 EXPECT_EQ(jdesc_output.description()->contents()[1].name, "somethingmid");
4757 }
4758