/* * Copyright 2011 The WebRTC project authors. All Rights Reserved. * * Use of this source code is governed by a BSD-style license * that can be found in the LICENSE file in the root of the source * tree. An additional intellectual property rights grant can be found * in the file PATENTS. All contributing project authors may * be found in the AUTHORS file in the root of the source tree. */ #include #include #include #include #include #include #include #include #include #include "absl/algorithm/container.h" #include "absl/base/nullability.h" #include "absl/memory/memory.h" #include "absl/strings/str_cat.h" #include "absl/strings/str_replace.h" #include "absl/strings/string_view.h" #include "api/candidate.h" #include "api/jsep.h" #include "api/media_types.h" #include "api/rtp_header_extension_id.h" #include "api/rtp_parameters.h" #include "api/rtp_transceiver_direction.h" #include "api/uma_metrics.h" #include "media/base/codec.h" #include "media/base/media_constants.h" #include "media/base/rid_description.h" #include "media/base/stream_params.h" #include "p2p/base/p2p_constants.h" #include "p2p/base/transport_description.h" #include "p2p/base/transport_info.h" #include "pc/media_protocol_names.h" #include "pc/media_session.h" #include "pc/session_description.h" #include "pc/simulcast_description.h" #include "rtc_base/checks.h" #include "rtc_base/message_digest.h" #include "rtc_base/socket_address.h" #include "rtc_base/ssl_fingerprint.h" #include "rtc_base/strings/string_builder.h" #include "system_wrappers/include/metrics.h" #include "test/gmock.h" #include "test/gtest.h" #ifdef WEBRTC_ANDROID #include "pc/test/android_test_initializer.h" #endif #include "api/webrtc_sdp.h" namespace webrtc { namespace { using ::testing::ElementsAre; using ::testing::Field; using ::testing::IsNull; using ::testing::NotNull; using ::testing::Property; constexpr uint32_t kDefaultSctpPort = 5000; constexpr uint16_t kUnusualSctpPort = 9556; constexpr char kSessionTime[] = "t=0 0\r\n"; constexpr uint32_t kCandidatePriority = 2130706432U; // pref = 1.0 constexpr char kAttributeIceUfragVoice[] = "a=ice-ufrag:ufrag_voice\r\n"; constexpr char kAttributeIcePwdVoice[] = "a=ice-pwd:pwd_voice\r\n"; constexpr char kAttributeIceUfragVideo[] = "a=ice-ufrag:ufrag_video\r\n"; constexpr char kAttributeIcePwdVideo[] = "a=ice-pwd:pwd_video\r\n"; constexpr uint32_t kCandidateGeneration = 2; constexpr char kCandidateFoundation1[] = "a0+B/1"; constexpr char kCandidateFoundation2[] = "a0+B/2"; constexpr char kCandidateFoundation3[] = "a0+B/3"; constexpr char kCandidateFoundation4[] = "a0+B/4"; constexpr char kFingerprint[] = "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n"; constexpr char kExtmapAllowMixed[] = "a=extmap-allow-mixed\r\n"; constexpr int kExtmapId = 1; constexpr char kExtmapUri[] = "http://example.com/082005/ext.htm#ttime"; constexpr char kExtmap[] = "a=extmap:1 http://example.com/082005/ext.htm#ttime\r\n"; constexpr char kExtmapWithDirectionAndAttribute[] = "a=extmap:1/sendrecv http://example.com/082005/ext.htm#ttime a1 a2\r\n"; constexpr char kExtmapWithDirectionAndAttributeEncrypted[] = "a=extmap:1/sendrecv urn:ietf:params:rtp-hdrext:encrypt " "http://example.com/082005/ext.htm#ttime a1 a2\r\n"; constexpr uint8_t kIdentityDigest[] = {0x4A, 0xAD, 0xB9, 0xB1, 0x3F, 0x82, 0x18, 0x3B, 0x54, 0x02, 0x12, 0xDF, 0x3E, 0x5D, 0x49, 0x6B, 0x19, 0xE5, 0x7C, 0xAB}; constexpr char kDtlsSctp[] = "DTLS/SCTP"; constexpr char kUdpDtlsSctp[] = "UDP/DTLS/SCTP"; constexpr char kTcpDtlsSctp[] = "TCP/DTLS/SCTP"; constexpr char kMediaSectionMsidLine[] = "a=msid:local_stream_1 audio_track_id_1"; constexpr char kSsrcAttributeMsidLine[] = "a=ssrc:1 msid:local_stream_1 audio_track_id_1"; struct CodecParams { int max_ptime; int ptime; int min_ptime; int sprop_stereo; int stereo; int useinband; int maxaveragebitrate; }; // Reference sdp string constexpr char kSdpFullString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=extmap-allow-mixed\r\n" "a=msid-semantic: WMS local_stream_1\r\n" "m=audio 2345 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 74.125.127.126\r\n" "a=rtcp:2347 IN IP4 74.125.127.126\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " "generation 2\r\n" "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " "generation 2\r\n" "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " "generation 2\r\n" "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " "raddr 192.168.1.5 rport 2346 " "generation 2\r\n" "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " "raddr 192.168.1.5 rport 2348 " "generation 2\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name\r\n" "a=sendrecv\r\n" "a=msid:local_stream_1 audio_track_id_1\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" "a=ssrc:1 cname:stream_1_cname\r\n" "m=video 3457 RTP/SAVPF 120\r\n" "c=IN IP4 74.125.224.39\r\n" "a=rtcp:3456 IN IP4 74.125.224.39\r\n" "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host " "generation 2\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host " "generation 2\r\n" "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host " "generation 2\r\n" "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay " "generation 2\r\n" "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay " "generation 2\r\n" "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:video_content_name\r\n" "a=sendrecv\r\n" "a=msid:local_stream_1 video_track_id_1\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=ssrc-group:FEC 2 3\r\n" "a=ssrc:2 cname:stream_1_cname\r\n" "a=ssrc:3 cname:stream_1_cname\r\n"; // SDP reference string without the candidates. constexpr char kSdpString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=extmap-allow-mixed\r\n" "a=msid-semantic: WMS local_stream_1\r\n" "m=audio 9 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name\r\n" "a=sendrecv\r\n" "a=msid:local_stream_1 audio_track_id_1\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" "a=ssrc:1 cname:stream_1_cname\r\n" "m=video 9 RTP/SAVPF 120\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:video_content_name\r\n" "a=sendrecv\r\n" "a=msid:local_stream_1 video_track_id_1\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=ssrc-group:FEC 2 3\r\n" "a=ssrc:2 cname:stream_1_cname\r\n" "a=ssrc:3 cname:stream_1_cname\r\n"; // draft-ietf-mmusic-sctp-sdp-03 constexpr char kSdpSctpDataChannelString[] = "m=application 9 UDP/DTLS/SCTP 5000\r\n" "c=IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_data\r\n" "a=ice-pwd:pwd_data\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:data_content_name\r\n" "a=sctpmap:5000 webrtc-datachannel 65535\r\n"; // draft-ietf-mmusic-sctp-sdp-12 // Note - this is invalid per draft-ietf-mmusic-sctp-sdp-26, // since the separator after "sctp-port" needs to be a colon. constexpr char kSdpSctpDataChannelStringWithSctpPort[] = "m=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\n" "a=sctp-port 5000\r\n" "c=IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_data\r\n" "a=ice-pwd:pwd_data\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:data_content_name\r\n"; // draft-ietf-mmusic-sctp-sdp-26 constexpr char kSdpSctpDataChannelStringWithSctpColonPort[] = "m=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\n" "a=sctp-port:5000\r\n" "c=IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_data\r\n" "a=ice-pwd:pwd_data\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:data_content_name\r\n"; constexpr char kSdpSctpDataChannelWithCandidatesString[] = "m=application 2345 UDP/DTLS/SCTP 5000\r\n" "c=IN IP4 74.125.127.126\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " "generation 2\r\n" "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " "raddr 192.168.1.5 rport 2346 " "generation 2\r\n" "a=ice-ufrag:ufrag_data\r\n" "a=ice-pwd:pwd_data\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:data_content_name\r\n" "a=sctpmap:5000 webrtc-datachannel 65535\r\n"; // draft-hancke-tsvwg-snap // a=sctp-init: constexpr char kSdpSctpDataChannelStringWithSctpInit[] = "m=application 9 UDP/DTLS/SCTP webrtc-datachannel\r\n" "a=sctp-port:5000\r\n" "a=sctp-init:Q29va2llTW9uc3Rlcg==\r\n" "c=IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_data\r\n" "a=ice-pwd:pwd_data\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:data_content_name\r\n"; constexpr char kSdpConferenceString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=msid-semantic: WMS\r\n" "m=audio 9 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 0.0.0.0\r\n" "a=x-google-flag:conference\r\n" "m=video 9 RTP/SAVPF 120\r\n" "c=IN IP4 0.0.0.0\r\n" "a=x-google-flag:conference\r\n"; constexpr char kSdpSessionString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=msid-semantic: WMS local_stream\r\n"; constexpr char kSdpAudioString[] = "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name\r\n" "a=sendrecv\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=ssrc:1 cname:stream_1_cname\r\n" "a=ssrc:1 msid:local_stream audio_track_id_1\r\n"; constexpr char kSdpVideoString[] = "m=video 9 RTP/SAVPF 120\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:video_content_name\r\n" "a=sendrecv\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=ssrc:2 cname:stream_1_cname\r\n" "a=ssrc:2 msid:local_stream video_track_id_1\r\n"; // Reference sdp string using bundle-only. constexpr char kBundleOnlySdpFullString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=extmap-allow-mixed\r\n" "a=group:BUNDLE audio_content_name video_content_name\r\n" "a=msid-semantic: WMS local_stream_1\r\n" "m=audio 2345 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 74.125.127.126\r\n" "a=rtcp:2347 IN IP4 74.125.127.126\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " "generation 2\r\n" "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " "generation 2\r\n" "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " "generation 2\r\n" "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " "raddr 192.168.1.5 rport 2346 " "generation 2\r\n" "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " "raddr 192.168.1.5 rport 2348 " "generation 2\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name\r\n" "a=msid:local_stream_1 audio_track_id_1\r\n" "a=sendrecv\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" "a=ssrc:1 cname:stream_1_cname\r\n" "m=video 0 RTP/SAVPF 120\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=bundle-only\r\n" "a=mid:video_content_name\r\n" "a=msid:local_stream_1 video_track_id_1\r\n" "a=sendrecv\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=ssrc-group:FEC 2 3\r\n" "a=ssrc:2 cname:stream_1_cname\r\n" "a=ssrc:3 cname:stream_1_cname\r\n"; // Plan B SDP reference string, with 2 streams, 2 audio tracks and 3 video // tracks. constexpr char kPlanBSdpFullString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=extmap-allow-mixed\r\n" "a=msid-semantic: WMS local_stream_1 local_stream_2\r\n" "m=audio 2345 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 74.125.127.126\r\n" "a=rtcp:2347 IN IP4 74.125.127.126\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " "generation 2\r\n" "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " "generation 2\r\n" "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " "generation 2\r\n" "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " "raddr 192.168.1.5 rport 2346 " "generation 2\r\n" "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " "raddr 192.168.1.5 rport 2348 " "generation 2\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name\r\n" "a=sendrecv\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" "a=ssrc:1 cname:stream_1_cname\r\n" "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n" "a=ssrc:4 cname:stream_2_cname\r\n" "a=ssrc:4 msid:local_stream_2 audio_track_id_2\r\n" "m=video 3457 RTP/SAVPF 120\r\n" "c=IN IP4 74.125.224.39\r\n" "a=rtcp:3456 IN IP4 74.125.224.39\r\n" "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host " "generation 2\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host " "generation 2\r\n" "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host " "generation 2\r\n" "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay " "generation 2\r\n" "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay " "generation 2\r\n" "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:video_content_name\r\n" "a=sendrecv\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=ssrc-group:FEC 2 3\r\n" "a=ssrc:2 cname:stream_1_cname\r\n" "a=ssrc:2 msid:local_stream_1 video_track_id_1\r\n" "a=ssrc:3 cname:stream_1_cname\r\n" "a=ssrc:3 msid:local_stream_1 video_track_id_1\r\n" "a=ssrc:5 cname:stream_2_cname\r\n" "a=ssrc:5 msid:local_stream_2 video_track_id_2\r\n" "a=ssrc:6 cname:stream_2_cname\r\n" "a=ssrc:6 msid:local_stream_2 video_track_id_3\r\n"; // Unified Plan SDP reference string, with 2 streams, 2 audio tracks and 3 video // tracks. constexpr char kUnifiedPlanSdpFullString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=extmap-allow-mixed\r\n" "a=msid-semantic: WMS local_stream_1\r\n" // Audio track 1, stream 1 (with candidates). "m=audio 2345 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 74.125.127.126\r\n" "a=rtcp:2347 IN IP4 74.125.127.126\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " "generation 2\r\n" "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " "generation 2\r\n" "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " "generation 2\r\n" "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " "raddr 192.168.1.5 rport 2346 " "generation 2\r\n" "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " "raddr 192.168.1.5 rport 2348 " "generation 2\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name\r\n" "a=msid:local_stream_1 audio_track_id_1\r\n" "a=sendrecv\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" "a=ssrc:1 cname:stream_1_cname\r\n" // Video track 1, stream 1 (with candidates). "m=video 3457 RTP/SAVPF 120\r\n" "c=IN IP4 74.125.224.39\r\n" "a=rtcp:3456 IN IP4 74.125.224.39\r\n" "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host " "generation 2\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host " "generation 2\r\n" "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host " "generation 2\r\n" "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay " "generation 2\r\n" "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay " "generation 2\r\n" "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:video_content_name\r\n" "a=msid:local_stream_1 video_track_id_1\r\n" "a=sendrecv\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=ssrc-group:FEC 2 3\r\n" "a=ssrc:2 cname:stream_1_cname\r\n" "a=ssrc:3 cname:stream_1_cname\r\n" // Audio track 2, stream 2. "m=audio 9 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_voice_2\r\na=ice-pwd:pwd_voice_2\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name_2\r\n" "a=msid:local_stream_2 audio_track_id_2\r\n" "a=sendrecv\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" "a=ssrc:4 cname:stream_2_cname\r\n" // Video track 2, stream 2. "m=video 9 RTP/SAVPF 120\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_video_2\r\na=ice-pwd:pwd_video_2\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:video_content_name_2\r\n" "a=msid:local_stream_2 video_track_id_2\r\n" "a=sendrecv\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=ssrc:5 cname:stream_2_cname\r\n" // Video track 3, stream 2. "m=video 9 RTP/SAVPF 120\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_video_3\r\na=ice-pwd:pwd_video_3\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:video_content_name_3\r\n" "a=msid:local_stream_2 video_track_id_3\r\n" "a=sendrecv\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=ssrc:6 cname:stream_2_cname\r\n"; // Unified Plan SDP reference string: // - audio track 1 has 1 a=msid lines // - audio track 2 has 2 a=msid lines // - audio track 3 has 1 a=msid line with the special "-" marker signifying that // there are 0 media stream ids. // This Unified Plan SDP represents a SDP that signals the msid using both // a=msid and a=ssrc msid semantics. constexpr char kUnifiedPlanSdpFullStringWithSpecialMsid[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=extmap-allow-mixed\r\n" "a=msid-semantic: WMS local_stream_1\r\n" // Audio track 1, with 1 stream id. "m=audio 2345 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 74.125.127.126\r\n" "a=rtcp:2347 IN IP4 74.125.127.126\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " "generation 2\r\n" "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " "generation 2\r\n" "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " "generation 2\r\n" "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " "raddr 192.168.1.5 rport 2346 " "generation 2\r\n" "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " "raddr 192.168.1.5 rport 2348 " "generation 2\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name\r\n" "a=sendrecv\r\n" "a=msid:local_stream_1 audio_track_id_1\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" "a=ssrc:1 cname:stream_1_cname\r\n" "a=ssrc:1 msid:local_stream_1 audio_track_id_1\r\n" // Audio track 2, with two stream ids. "m=audio 9 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_voice_2\r\na=ice-pwd:pwd_voice_2\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name_2\r\n" "a=sendrecv\r\n" "a=msid:local_stream_1 audio_track_id_2\r\n" "a=msid:local_stream_2 audio_track_id_2\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" "a=ssrc:4 cname:stream_1_cname\r\n" // The support for Plan B msid signaling only includes the // first media stream id "local_stream_1." "a=ssrc:4 msid:local_stream_1 audio_track_id_2\r\n" // Audio track 3, with no stream ids. "m=audio 9 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_voice_3\r\na=ice-pwd:pwd_voice_3\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name_3\r\n" "a=sendrecv\r\n" "a=msid:- audio_track_id_3\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" "a=ssrc:7 cname:stream_2_cname\r\n" "a=ssrc:7 msid:- audio_track_id_3\r\n"; // SDP string for unified plan without SSRCs constexpr char kUnifiedPlanSdpFullStringNoSsrc[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=msid-semantic: WMS local_stream_1\r\n" // Audio track 1, stream 1 (with candidates). "m=audio 2345 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 74.125.127.126\r\n" "a=rtcp:2347 IN IP4 74.125.127.126\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " "generation 2\r\n" "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1235 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1238 typ host " "generation 2\r\n" "a=candidate:a0+B/2 2 udp 2130706432 ::1 1239 typ host " "generation 2\r\n" "a=candidate:a0+B/3 1 udp 2130706432 74.125.127.126 2345 typ srflx " "raddr 192.168.1.5 rport 2346 " "generation 2\r\n" "a=candidate:a0+B/3 2 udp 2130706432 74.125.127.126 2347 typ srflx " "raddr 192.168.1.5 rport 2348 " "generation 2\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:audio_content_name\r\n" "a=msid:local_stream_1 audio_track_id_1\r\n" "a=sendrecv\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" // Video track 1, stream 1 (with candidates). "m=video 3457 RTP/SAVPF 120\r\n" "c=IN IP4 74.125.224.39\r\n" "a=rtcp:3456 IN IP4 74.125.224.39\r\n" "a=candidate:a0+B/1 2 udp 2130706432 192.168.1.5 1236 typ host " "generation 2\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1237 typ host " "generation 2\r\n" "a=candidate:a0+B/2 2 udp 2130706432 ::1 1240 typ host " "generation 2\r\n" "a=candidate:a0+B/2 1 udp 2130706432 ::1 1241 typ host " "generation 2\r\n" "a=candidate:a0+B/4 2 udp 2130706432 74.125.224.39 3456 typ relay " "generation 2\r\n" "a=candidate:a0+B/4 1 udp 2130706432 74.125.224.39 3457 typ relay " "generation 2\r\n" "a=ice-ufrag:ufrag_video\r\na=ice-pwd:pwd_video\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=mid:video_content_name\r\n" "a=msid:local_stream_1 video_track_id_1\r\n" "a=sendrecv\r\n" "a=rtpmap:120 VP8/90000\r\n" // Audio track 2, stream 2. "m=audio 9 RTP/SAVPF 111 103 104\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_voice_2\r\na=ice-pwd:pwd_voice_2\r\n" "a=mid:audio_content_name_2\r\n" "a=msid:local_stream_2 audio_track_id_2\r\n" "a=sendrecv\r\n" "a=rtcp-mux\r\n" "a=rtcp-rsize\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" // Video track 2, stream 2. "m=video 9 RTP/SAVPF 120\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_video_2\r\na=ice-pwd:pwd_video_2\r\n" "a=mid:video_content_name_2\r\n" "a=msid:local_stream_2 video_track_id_2\r\n" "a=sendrecv\r\n" "a=rtpmap:120 VP8/90000\r\n" // Video track 3, stream 2. "m=video 9 RTP/SAVPF 120\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_video_3\r\na=ice-pwd:pwd_video_3\r\n" "a=mid:video_content_name_3\r\n" "a=msid:local_stream_2 video_track_id_3\r\n" "a=sendrecv\r\n" "a=rtpmap:120 VP8/90000\r\n"; // One candidate reference string as per W3c spec. // candidate: not a=candidate:CRLF constexpr char kRawCandidate[] = "candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host generation 2"; // One candidate reference string. constexpr char kSdpOneCandidate[] = "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " "generation 2\r\n"; constexpr char kSdpTcpActiveCandidate[] = "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host " "tcptype active generation 2"; constexpr char kSdpTcpPassiveCandidate[] = "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host " "tcptype passive generation 2"; constexpr char kSdpTcpSOCandidate[] = "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host " "tcptype so generation 2"; constexpr char kSdpTcpInvalidCandidate[] = "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9 typ host " "tcptype invalid generation 2"; // One candidate reference string with IPV6 address. constexpr char kRawIPV6Candidate[] = "candidate:a0+B/1 1 udp 2130706432 " "abcd:abcd:abcd:abcd:abcd:abcd:abcd:abcd 1234 typ host generation 2"; // One candidate reference string. constexpr char kSdpOneCandidateWithUfragPwd[] = "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host network_name" " eth0 ufrag user_rtp pwd password_rtp generation 2\r\n"; constexpr char kRawHostnameCandidate[] = "candidate:a0+B/1 1 udp 2130706432 a.test 1234 typ host generation 2"; // Session id and version constexpr char kSessionId[] = "18446744069414584320"; constexpr char kSessionVersion[] = "18446462598732840960"; // ICE options. constexpr char kIceOption1[] = "iceoption1"; constexpr char kIceOption2[] = "iceoption2"; constexpr char kIceOption3[] = "iceoption3"; // ICE ufrags/passwords. constexpr char kUfragVoice[] = "ufrag_voice"; constexpr char kPwdVoice[] = "pwd_voice"; constexpr char kUfragVideo[] = "ufrag_video"; constexpr char kPwdVideo[] = "pwd_video"; constexpr char kUfragData[] = "ufrag_data"; constexpr char kPwdData[] = "pwd_data"; // Extra ufrags/passwords for extra unified plan m= sections. constexpr char kUfragVoice2[] = "ufrag_voice_2"; constexpr char kPwdVoice2[] = "pwd_voice_2"; constexpr char kUfragVoice3[] = "ufrag_voice_3"; constexpr char kPwdVoice3[] = "pwd_voice_3"; constexpr char kUfragVideo2[] = "ufrag_video_2"; constexpr char kPwdVideo2[] = "pwd_video_2"; constexpr char kUfragVideo3[] = "ufrag_video_3"; constexpr char kPwdVideo3[] = "pwd_video_3"; // Content name constexpr char kAudioContentName[] = "audio_content_name"; constexpr char kVideoContentName[] = "video_content_name"; constexpr char kDataContentName[] = "data_content_name"; // Extra content names for extra unified plan m= sections. constexpr char kAudioContentName2[] = "audio_content_name_2"; constexpr char kAudioContentName3[] = "audio_content_name_3"; constexpr char kVideoContentName2[] = "video_content_name_2"; constexpr char kVideoContentName3[] = "video_content_name_3"; // MediaStream 1 constexpr char kStreamId1[] = "local_stream_1"; constexpr char kStream1Cname[] = "stream_1_cname"; constexpr char kAudioTrackId1[] = "audio_track_id_1"; constexpr uint32_t kAudioTrack1Ssrc = 1; constexpr char kVideoTrackId1[] = "video_track_id_1"; constexpr uint32_t kVideoTrack1Ssrc1 = 2; constexpr uint32_t kVideoTrack1Ssrc2 = 3; // MediaStream 2 constexpr char kStreamId2[] = "local_stream_2"; constexpr char kStream2Cname[] = "stream_2_cname"; constexpr char kAudioTrackId2[] = "audio_track_id_2"; constexpr uint32_t kAudioTrack2Ssrc = 4; constexpr char kVideoTrackId2[] = "video_track_id_2"; constexpr uint32_t kVideoTrack2Ssrc = 5; constexpr char kVideoTrackId3[] = "video_track_id_3"; constexpr uint32_t kVideoTrack3Ssrc = 6; constexpr char kAudioTrackId3[] = "audio_track_id_3"; constexpr uint32_t kAudioTrack3Ssrc = 7; // Candidate constexpr char kDummyMid[] = "dummy_mid"; constexpr int kDummyIndex = 123; // Misc constexpr SdpType kDummyType = SdpType::kOffer; // Helper functions // Serializes a cricket Candidate. std::string SdpSerializeCandidate(const Candidate& candidate) { return candidate.ToCandidateAttribute(true); } std::string SdpSerializeCandidate(const IceCandidate& candidate) { return SdpSerializeCandidate(candidate.candidate()); } // Creates a new session description with a supplied sdp, of type // SdpType::kOffer (kDummyType). std::unique_ptr SdpDeserialize( absl::string_view sdp, SdpParseError* absl_nullable error = nullptr) { static_assert(kDummyType == SdpType::kOffer); return SdpDeserialize(SdpType::kOffer, sdp, error); } std::string SdpSerialize( const std::unique_ptr& sd) { EXPECT_THAT(sd, NotNull()); return sd ? SdpSerialize(*sd) : ""; } // Add some extra `newlines` to the `message` after `line`. void InjectAfter(const std::string& line, const std::string& newlines, std::string* message) { absl::StrReplaceAll({{line, line + newlines}}, message); } void Replace(const std::string& line, const std::string& newlines, std::string* message) { absl::StrReplaceAll({{line, newlines}}, message); } // Expect a parse failure on the line containing `bad_part` when attempting to // parse `bad_sdp`. void ExpectParseFailure(const std::string& bad_sdp, const std::string& bad_part) { SdpParseError error; ASSERT_THAT(SdpDeserialize(bad_sdp, &error), IsNull()); EXPECT_NE(std::string::npos, error.line.find(bad_part.c_str())) << "Did not find " << bad_part << " in " << error.line; } // Expect fail to parse kSdpFullString if replace `good_part` with `bad_part`. void ExpectParseFailure(const char* good_part, const char* bad_part) { std::string bad_sdp = kSdpFullString; Replace(good_part, bad_part, &bad_sdp); ExpectParseFailure(bad_sdp, bad_part); } // Expect fail to parse kSdpFullString if add `newlines` after `injectpoint`. void ExpectParseFailureWithNewLines(const std::string& injectpoint, const std::string& newlines, const std::string& bad_part) { std::string bad_sdp = kSdpFullString; InjectAfter(injectpoint, newlines, &bad_sdp); ExpectParseFailure(bad_sdp, bad_part); } void ReplaceDirection(RtpTransceiverDirection direction, std::string* message) { std::string new_direction; switch (direction) { case RtpTransceiverDirection::kInactive: new_direction = "a=inactive"; break; case RtpTransceiverDirection::kSendOnly: new_direction = "a=sendonly"; break; case RtpTransceiverDirection::kRecvOnly: new_direction = "a=recvonly"; break; case RtpTransceiverDirection::kSendRecv: new_direction = "a=sendrecv"; break; case RtpTransceiverDirection::kStopped: default: RTC_DCHECK_NOTREACHED(); new_direction = "a=sendrecv"; break; } Replace("a=sendrecv", new_direction, message); } void ReplaceRejected(bool audio_rejected, bool video_rejected, std::string* message) { if (audio_rejected) { Replace("m=audio 9", "m=audio 0", message); Replace(kAttributeIceUfragVoice, "", message); Replace(kAttributeIcePwdVoice, "", message); } if (video_rejected) { Replace("m=video 9", "m=video 0", message); Replace(kAttributeIceUfragVideo, "", message); Replace(kAttributeIcePwdVideo, "", message); } } TransportDescription MakeTransportDescription(std::string ufrag, std::string pwd) { SSLFingerprint fingerprint(DIGEST_SHA_1, kIdentityDigest); return TransportDescription(std::vector(), ufrag, pwd, ICEMODE_FULL, CONNECTIONROLE_NONE, &fingerprint); } std::unique_ptr NewCandidate(absl::string_view sdp, absl::string_view mid = kDummyMid, int index = kDummyIndex) { return IceCandidate::Create(mid, index, sdp); } // WebRtcSdpTest class WebRtcSdpTest : public ::testing::Test { public: WebRtcSdpTest() { #ifdef WEBRTC_ANDROID InitializeAndroidObjects(); #endif // AudioContentDescription audio_desc_ = CreateAudioContentDescription(); StreamParams audio_stream; audio_stream.id = kAudioTrackId1; audio_stream.cname = kStream1Cname; audio_stream.set_stream_ids({kStreamId1}); audio_stream.ssrcs.push_back(kAudioTrack1Ssrc); audio_desc_->AddStream(audio_stream); SocketAddress audio_addr("74.125.127.126", 2345); audio_desc_->set_connection_address(audio_addr); desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, absl::WrapUnique(audio_desc_)); // VideoContentDescription video_desc_ = CreateVideoContentDescription(); StreamParams video_stream; video_stream.id = kVideoTrackId1; video_stream.cname = kStream1Cname; video_stream.set_stream_ids({kStreamId1}); video_stream.ssrcs.push_back(kVideoTrack1Ssrc1); video_stream.ssrcs.push_back(kVideoTrack1Ssrc2); SsrcGroup ssrc_group(kFecSsrcGroupSemantics, video_stream.ssrcs); video_stream.ssrc_groups.push_back(ssrc_group); video_desc_->AddStream(video_stream); SocketAddress video_addr("74.125.224.39", 3457); video_desc_->set_connection_address(video_addr); desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, absl::WrapUnique(video_desc_)); // TransportInfo, with fingerprint SSLFingerprint fingerprint(DIGEST_SHA_1, kIdentityDigest); desc_.AddTransportInfo(TransportInfo( kAudioContentName, MakeTransportDescription(kUfragVoice, kPwdVoice))); desc_.AddTransportInfo(TransportInfo( kVideoContentName, MakeTransportDescription(kUfragVideo, kPwdVideo))); // v4 host int port = 1234; SocketAddress address("192.168.1.5", port++); Candidate candidate1(ICE_CANDIDATE_COMPONENT_RTP, "udp", address, kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation1); address.SetPort(port++); Candidate candidate2(ICE_CANDIDATE_COMPONENT_RTCP, "udp", address, kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation1); address.SetPort(port++); Candidate candidate3(ICE_CANDIDATE_COMPONENT_RTCP, "udp", address, kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation1); address.SetPort(port++); Candidate candidate4(ICE_CANDIDATE_COMPONENT_RTP, "udp", address, kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation1); // v6 host SocketAddress v6_address("::1", port++); Candidate candidate5(ICE_CANDIDATE_COMPONENT_RTP, "udp", v6_address, kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation2); v6_address.SetPort(port++); Candidate candidate6(ICE_CANDIDATE_COMPONENT_RTCP, "udp", v6_address, kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation2); v6_address.SetPort(port++); Candidate candidate7(ICE_CANDIDATE_COMPONENT_RTCP, "udp", v6_address, kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation2); v6_address.SetPort(port++); Candidate candidate8(ICE_CANDIDATE_COMPONENT_RTP, "udp", v6_address, kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation2); // stun int port_stun = 2345; SocketAddress address_stun("74.125.127.126", port_stun++); SocketAddress rel_address_stun("192.168.1.5", port_stun++); Candidate candidate9(ICE_CANDIDATE_COMPONENT_RTP, "udp", address_stun, kCandidatePriority, "", "", IceCandidateType::kSrflx, kCandidateGeneration, kCandidateFoundation3); candidate9.set_related_address(rel_address_stun); address_stun.SetPort(port_stun++); rel_address_stun.SetPort(port_stun++); Candidate candidate10(ICE_CANDIDATE_COMPONENT_RTCP, "udp", address_stun, kCandidatePriority, "", "", IceCandidateType::kSrflx, kCandidateGeneration, kCandidateFoundation3); candidate10.set_related_address(rel_address_stun); // relay int port_relay = 3456; SocketAddress address_relay("74.125.224.39", port_relay++); Candidate candidate11(ICE_CANDIDATE_COMPONENT_RTCP, "udp", address_relay, kCandidatePriority, "", "", IceCandidateType::kRelay, kCandidateGeneration, kCandidateFoundation4); address_relay.SetPort(port_relay++); Candidate candidate12(ICE_CANDIDATE_COMPONENT_RTP, "udp", address_relay, kCandidatePriority, "", "", IceCandidateType::kRelay, kCandidateGeneration, kCandidateFoundation4); // voice candidates_.push_back(candidate1); candidates_.push_back(candidate2); candidates_.push_back(candidate5); candidates_.push_back(candidate6); candidates_.push_back(candidate9); candidates_.push_back(candidate10); // video candidates_.push_back(candidate3); candidates_.push_back(candidate4); candidates_.push_back(candidate7); candidates_.push_back(candidate8); candidates_.push_back(candidate11); candidates_.push_back(candidate12); jcandidate_.reset( new IceCandidate(std::string("audio_content_name"), 0, candidate1)); // Set up the main session description object. jdesc_ = NewSessionDescriptionWithCandidates(); } void AddCandidatesToDescription(SessionDescriptionInterface* sd) { ASSERT_THAT(sd, NotNull()); absl::string_view mline_id; int mline_index = 0; for (size_t i = 0; i < candidates_.size(); ++i) { // In this test, the audio m line index will be 0, and the video m line // will be 1. bool is_video = (i > 5); mline_id = is_video ? "video_content_name" : "audio_content_name"; mline_index = is_video ? 1 : 0; IceCandidate jice(mline_id, mline_index, candidates_.at(i)); sd->AddCandidate(&jice); } } // Creates a new SessionDescriptionInterface object from a clone of // the inner `desc_` description. std::unique_ptr NewSessionDescriptionWithCandidates() { std::unique_ptr sd = CreateSessionDescription( kDummyType, kSessionId, kSessionVersion, desc_.Clone()); EXPECT_THAT(sd, NotNull()); if (sd) { AddCandidatesToDescription(sd.get()); } return sd; } // Creates a new session description based on the inner `desc_` // and does not add the default candidate set. std::unique_ptr NewSessionDescriptionNoCandidates() { // Using the jdesc_->Clone() method would also clone the candidates, so // instead, we just create a new session description with the properties // from the inner jdesc_ object. return CreateSessionDescription(kDummyType, kSessionId, kSessionVersion, desc_.Clone()); } void RemoveVideoCandidates(std::unique_ptr& sd) { ASSERT_THAT(sd, NotNull()); const IceCandidateCollection* video_candidates_collection = sd->candidates(1); ASSERT_NE(nullptr, video_candidates_collection); // Since this loop modifies video_candidates_collection, just loop until // it's empty instead of using a for loop. while (!video_candidates_collection->candidates().empty()) { ASSERT_TRUE(sd->RemoveCandidate( video_candidates_collection->candidates().back().get())); } } // Turns the existing reference description into a description using // a=bundle-only. This means no transport attributes and a 0 port value on // the m= sections not associated with the BUNDLE-tag. std::unique_ptr MakeBundleOnlyDescription() { // And the rest of the transport attributes. desc_.transport_infos()[1].description.ice_ufrag.clear(); desc_.transport_infos()[1].description.ice_pwd.clear(); desc_.transport_infos()[1].description.connection_role = CONNECTIONROLE_NONE; // Set bundle-only flag. desc_.contents()[1].bundle_only = true; // Add BUNDLE group. ContentGroup group(GROUP_TYPE_BUNDLE); group.AddContentName(kAudioContentName); group.AddContentName(kVideoContentName); desc_.AddGroup(group); std::unique_ptr sd = NewSessionDescriptionWithCandidates(); // Remove the video candidates (not audio). This is to maintain // compatibility with the expectations of the tests that call // MakeBundleOnlyDescription(). RemoveVideoCandidates(sd); return sd; } // Turns the existing reference description into a plan B description, // with 2 audio tracks and 3 video tracks. std::unique_ptr MakePlanBDescription() { audio_desc_ = new AudioContentDescription(*audio_desc_); video_desc_ = new VideoContentDescription(*video_desc_); StreamParams audio_track_2; audio_track_2.id = kAudioTrackId2; audio_track_2.cname = kStream2Cname; audio_track_2.set_stream_ids({kStreamId2}); audio_track_2.ssrcs.push_back(kAudioTrack2Ssrc); audio_desc_->AddStream(audio_track_2); StreamParams video_track_2; video_track_2.id = kVideoTrackId2; video_track_2.cname = kStream2Cname; video_track_2.set_stream_ids({kStreamId2}); video_track_2.ssrcs.push_back(kVideoTrack2Ssrc); video_desc_->AddStream(video_track_2); StreamParams video_track_3; video_track_3.id = kVideoTrackId3; video_track_3.cname = kStream2Cname; video_track_3.set_stream_ids({kStreamId2}); video_track_3.ssrcs.push_back(kVideoTrack3Ssrc); video_desc_->AddStream(video_track_3); desc_.RemoveContentByName(kAudioContentName); desc_.RemoveContentByName(kVideoContentName); desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, absl::WrapUnique(audio_desc_)); desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, absl::WrapUnique(video_desc_)); desc_.set_msid_signaling(kMsidSignalingSsrcAttribute | kMsidSignalingSemantic); return NewSessionDescriptionWithCandidates(); } // Turns the existing reference description into a unified plan description, // with 2 audio tracks and 3 video tracks. void MakeUnifiedPlanDescription(bool use_ssrcs = true) { // Audio track 2. AudioContentDescription* audio_desc_2 = CreateAudioContentDescription(); StreamParams audio_track_2; audio_track_2.id = kAudioTrackId2; audio_track_2.set_stream_ids({kStreamId2}); if (use_ssrcs) { audio_track_2.cname = kStream2Cname; audio_track_2.ssrcs.push_back(kAudioTrack2Ssrc); } audio_desc_2->AddStream(audio_track_2); desc_.AddContent(kAudioContentName2, MediaProtocolType::kRtp, absl::WrapUnique(audio_desc_2)); desc_.AddTransportInfo( TransportInfo(kAudioContentName2, MakeTransportDescription(kUfragVoice2, kPwdVoice2))); // Video track 2, in stream 2. VideoContentDescription* video_desc_2 = CreateVideoContentDescription(); StreamParams video_track_2; video_track_2.id = kVideoTrackId2; video_track_2.set_stream_ids({kStreamId2}); if (use_ssrcs) { video_track_2.cname = kStream2Cname; video_track_2.ssrcs.push_back(kVideoTrack2Ssrc); } video_desc_2->AddStream(video_track_2); desc_.AddContent(kVideoContentName2, MediaProtocolType::kRtp, absl::WrapUnique(video_desc_2)); desc_.AddTransportInfo( TransportInfo(kVideoContentName2, MakeTransportDescription(kUfragVideo2, kPwdVideo2))); // Video track 3, in stream 2. VideoContentDescription* video_desc_3 = CreateVideoContentDescription(); StreamParams video_track_3; video_track_3.id = kVideoTrackId3; video_track_3.set_stream_ids({kStreamId2}); if (use_ssrcs) { video_track_3.cname = kStream2Cname; video_track_3.ssrcs.push_back(kVideoTrack3Ssrc); } video_desc_3->AddStream(video_track_3); desc_.AddContent(kVideoContentName3, MediaProtocolType::kRtp, absl::WrapUnique(video_desc_3)); desc_.AddTransportInfo( TransportInfo(kVideoContentName3, MakeTransportDescription(kUfragVideo3, kPwdVideo3))); desc_.set_msid_signaling(kMsidSignalingMediaSection | kMsidSignalingSemantic); jdesc_ = NewSessionDescriptionWithCandidates(); } // Creates an audio content description with no streams, and some default // configuration. AudioContentDescription* CreateAudioContentDescription() { AudioContentDescription* audio = new AudioContentDescription(); audio->set_rtcp_mux(true); audio->set_rtcp_reduced_size(true); audio->set_protocol(kMediaProtocolSavpf); audio->AddCodec(CreateAudioCodec(111, "opus", 48000, 2)); audio->AddCodec(CreateAudioCodec(103, "ISAC", 16000, 1)); audio->AddCodec(CreateAudioCodec(104, "ISAC", 32000, 1)); return audio; } // Turns the existing reference description into a unified plan description, // with 3 audio MediaContentDescriptions with special StreamParams that // contain 0 or multiple stream ids: - audio track 1 has 1 media stream id - // audio track 2 has 2 media stream ids - audio track 3 has 0 media stream ids void MakeUnifiedPlanDescriptionMultipleStreamIds(const int msid_signaling) { desc_.RemoveContentByName(kVideoContentName); desc_.RemoveTransportInfoByName(kVideoContentName); RemoveVideoCandidates(jdesc_); // Audio track 2 has 2 media stream ids. AudioContentDescription* audio_desc_2 = CreateAudioContentDescription(); StreamParams audio_track_2; audio_track_2.id = kAudioTrackId2; audio_track_2.cname = kStream1Cname; audio_track_2.set_stream_ids({kStreamId1, kStreamId2}); audio_track_2.ssrcs.push_back(kAudioTrack2Ssrc); audio_desc_2->AddStream(audio_track_2); desc_.AddContent(kAudioContentName2, MediaProtocolType::kRtp, absl::WrapUnique(audio_desc_2)); desc_.AddTransportInfo( TransportInfo(kAudioContentName2, MakeTransportDescription(kUfragVoice2, kPwdVoice2))); // Audio track 3 has no stream ids. AudioContentDescription* audio_desc_3 = CreateAudioContentDescription(); StreamParams audio_track_3; audio_track_3.id = kAudioTrackId3; audio_track_3.cname = kStream2Cname; audio_track_3.set_stream_ids({}); audio_track_3.ssrcs.push_back(kAudioTrack3Ssrc); audio_desc_3->AddStream(audio_track_3); desc_.AddContent(kAudioContentName3, MediaProtocolType::kRtp, absl::WrapUnique(audio_desc_3)); desc_.AddTransportInfo( TransportInfo(kAudioContentName3, MakeTransportDescription(kUfragVoice3, kPwdVoice3))); desc_.set_msid_signaling(msid_signaling); jdesc_ = NewSessionDescriptionWithCandidates(); ASSERT_THAT(jdesc_, NotNull()); } // Creates a video content description with no streams, and some default // configuration. VideoContentDescription* CreateVideoContentDescription() { VideoContentDescription* video = new VideoContentDescription(); video->set_protocol(kMediaProtocolSavpf); video->AddCodec(CreateVideoCodec(120, "VP8")); return video; } void CompareMediaContentDescription(const MediaContentDescription* cd1, const MediaContentDescription* cd2) { // type EXPECT_EQ(cd1->type(), cd2->type()); // content direction EXPECT_EQ(cd1->direction(), cd2->direction()); // rtcp_mux EXPECT_EQ(cd1->rtcp_mux(), cd2->rtcp_mux()); // rtcp_reduced_size EXPECT_EQ(cd1->rtcp_reduced_size(), cd2->rtcp_reduced_size()); // protocol // Use an equivalence class here, for old and new versions of the // protocol description. if (cd1->protocol() == kMediaProtocolDtlsSctp || cd1->protocol() == kMediaProtocolUdpDtlsSctp || cd1->protocol() == kMediaProtocolTcpDtlsSctp) { const bool cd2_is_also_dtls_sctp = cd2->protocol() == kMediaProtocolDtlsSctp || cd2->protocol() == kMediaProtocolUdpDtlsSctp || cd2->protocol() == kMediaProtocolTcpDtlsSctp; EXPECT_TRUE(cd2_is_also_dtls_sctp); } else { EXPECT_EQ(cd1->protocol(), cd2->protocol()); } // codecs EXPECT_EQ(cd1->codecs(), cd2->codecs()); // bandwidth EXPECT_EQ(cd1->bandwidth(), cd2->bandwidth()); // streams EXPECT_EQ(cd1->streams(), cd2->streams()); // extmap-allow-mixed EXPECT_EQ(cd1->extmap_allow_mixed_level(), cd2->extmap_allow_mixed_level()); // extmap ASSERT_EQ(cd1->rtp_header_extensions().size(), cd2->rtp_header_extensions().size()); for (size_t i = 0; i < cd1->rtp_header_extensions().size(); ++i) { const RtpExtension ext1 = cd1->rtp_header_extensions().at(i); const RtpExtension ext2 = cd2->rtp_header_extensions().at(i); EXPECT_EQ(ext1.uri, ext2.uri); EXPECT_EQ(ext1.id, ext2.id); EXPECT_EQ(ext1.encrypt, ext2.encrypt); } } void CompareRidDescriptionIds(const std::vector& rids, const std::vector& ids) { // Order of elements does not matter, only equivalence of sets. EXPECT_EQ(rids.size(), ids.size()); for (const std::string& id : ids) { EXPECT_EQ(1l, absl::c_count_if(rids, [id](const RidDescription& rid) { return rid.rid == id; })); } } void CompareSimulcastDescription(const SimulcastDescription& simulcast1, const SimulcastDescription& simulcast2) { EXPECT_EQ(simulcast1.send_layers().size(), simulcast2.send_layers().size()); EXPECT_EQ(simulcast1.receive_layers().size(), simulcast2.receive_layers().size()); } void CompareSctpDataContentDescription( const SctpDataContentDescription* dcd1, const SctpDataContentDescription* dcd2) { EXPECT_EQ(dcd1->use_sctpmap(), dcd2->use_sctpmap()); EXPECT_EQ(dcd1->port(), dcd2->port()); EXPECT_EQ(dcd1->max_message_size(), dcd2->max_message_size()); } void CompareSessionDescription(const SessionDescription& desc1, const SessionDescription& desc2) { // Compare content descriptions. if (desc1.contents().size() != desc2.contents().size()) { ADD_FAILURE(); return; } for (size_t i = 0; i < desc1.contents().size(); ++i) { const ContentInfo& c1 = desc1.contents().at(i); const ContentInfo& c2 = desc2.contents().at(i); // ContentInfo properties. EXPECT_EQ(c1.mid(), c2.mid()); EXPECT_EQ(c1.type, c2.type); EXPECT_EQ(c1.rejected, c2.rejected); EXPECT_EQ(c1.bundle_only, c2.bundle_only); ASSERT_EQ(IsAudioContent(&c1), IsAudioContent(&c2)); if (IsAudioContent(&c1)) { CompareMediaContentDescription(c1.media_description(), c2.media_description()); } ASSERT_EQ(IsVideoContent(&c1), IsVideoContent(&c2)); if (IsVideoContent(&c1)) { CompareMediaContentDescription(c1.media_description(), c2.media_description()); } ASSERT_EQ(IsDataContent(&c1), IsDataContent(&c2)); if (c1.media_description()->as_sctp()) { ASSERT_TRUE(c2.media_description()->as_sctp()); const SctpDataContentDescription* scd1 = c1.media_description()->as_sctp(); const SctpDataContentDescription* scd2 = c2.media_description()->as_sctp(); CompareSctpDataContentDescription(scd1, scd2); } CompareSimulcastDescription( c1.media_description()->simulcast_description(), c2.media_description()->simulcast_description()); } // group const ContentGroups groups1 = desc1.groups(); const ContentGroups groups2 = desc2.groups(); EXPECT_EQ(groups1.size(), groups1.size()); if (groups1.size() != groups2.size()) { ADD_FAILURE(); return; } for (size_t i = 0; i < groups1.size(); ++i) { const ContentGroup group1 = groups1.at(i); const ContentGroup group2 = groups2.at(i); EXPECT_EQ(group1.semantics(), group2.semantics()); const ContentNames names1 = group1.content_names(); const ContentNames names2 = group2.content_names(); EXPECT_EQ(names1.size(), names2.size()); if (names1.size() != names2.size()) { ADD_FAILURE(); return; } ContentNames::const_iterator iter1 = names1.begin(); ContentNames::const_iterator iter2 = names2.begin(); while (iter1 != names1.end()) { EXPECT_EQ(*iter1++, *iter2++); } } // transport info const TransportInfos transports1 = desc1.transport_infos(); const TransportInfos transports2 = desc2.transport_infos(); EXPECT_EQ(transports1.size(), transports2.size()); if (transports1.size() != transports2.size()) { ADD_FAILURE(); return; } for (size_t i = 0; i < transports1.size(); ++i) { const TransportInfo transport1 = transports1.at(i); const TransportInfo transport2 = transports2.at(i); EXPECT_EQ(transport1.content_name, transport2.content_name); EXPECT_EQ(transport1.description.ice_ufrag, transport2.description.ice_ufrag); EXPECT_EQ(transport1.description.ice_pwd, transport2.description.ice_pwd); EXPECT_EQ(transport1.description.ice_mode, transport2.description.ice_mode); if (transport1.description.identity_fingerprint) { if (!transport2.description.identity_fingerprint) { ADD_FAILURE() << "transport[" << i << "]: left transport has fingerprint, right transport " "does not have it"; } else { EXPECT_EQ(*transport1.description.identity_fingerprint, *transport2.description.identity_fingerprint); } } else { EXPECT_EQ(transport1.description.identity_fingerprint, transport2.description.identity_fingerprint); } EXPECT_EQ(transport1.description.transport_options, transport2.description.transport_options); } // global attributes EXPECT_EQ(desc1.msid_signaling(), desc2.msid_signaling()); EXPECT_EQ(desc1.extmap_allow_mixed(), desc2.extmap_allow_mixed()); } bool CompareSessionDescription(const SessionDescriptionInterface& desc1, const SessionDescriptionInterface& desc2) { EXPECT_EQ(desc1.session_id(), desc2.session_id()); EXPECT_EQ(desc1.session_version(), desc2.session_version()); CompareSessionDescription(*desc1.description(), *desc2.description()); if (desc1.number_of_mediasections() != desc2.number_of_mediasections()) return false; for (size_t i = 0; i < desc1.number_of_mediasections(); ++i) { const IceCandidateCollection* cc1 = desc1.candidates(i); const IceCandidateCollection* cc2 = desc2.candidates(i); if (cc1->count() != cc2->count()) { EXPECT_EQ(cc1->count(), cc2->count()); return false; } for (size_t j = 0; j < cc1->count(); ++j) { const IceCandidate* c1 = cc1->at(j); const IceCandidate* c2 = cc2->at(j); EXPECT_EQ(c1->sdp_mid(), c2->sdp_mid()); EXPECT_EQ(c1->sdp_mline_index(), c2->sdp_mline_index()); EXPECT_TRUE(c1->candidate().IsEquivalent(c2->candidate())); } } return true; } // Convenience helpers while migrating over to unique_ptr<>. bool CompareSessionDescription( const std::unique_ptr& desc1, const SessionDescriptionInterface& desc2) { if (!desc1) return false; return CompareSessionDescription(*desc1, desc2); } bool CompareSessionDescription( const SessionDescriptionInterface& desc1, const std::unique_ptr& desc2) { if (!desc2) return false; return CompareSessionDescription(desc1, *desc2); } bool CompareSessionDescription( const std::unique_ptr& desc1, const std::unique_ptr& desc2) { if (!desc1 || !desc2) return false; // If both are null, then that's likely programmer error. return CompareSessionDescription(*desc1, *desc2); } // Calls `CompareSessionDescription()` to compare `sd` against the inner // `desc_` description along with the default set of candidates. bool MatchesCurrentDescription( const std::unique_ptr& sd) { return CompareSessionDescription(NewSessionDescriptionWithCandidates(), sd); } // Calls `CompareSessionDescription()` to compare `sd` against the inner // `desc_` description without the default set of candidates. bool MatchesCurrentDescriptionNoCandidates( const std::unique_ptr& sd) { return CompareSessionDescription(NewSessionDescriptionNoCandidates(), sd); } // Disable the ice-ufrag and ice-pwd in given `sdp` message by replacing // them with invalid keywords so that the parser will just ignore them. bool RemoveCandidateUfragPwd(std::string* sdp) { absl::StrReplaceAll( {{"a=ice-ufrag", "a=xice-ufrag"}, {"a=ice-pwd", "a=xice-pwd"}}, sdp); return true; } // Update the candidates in `jdesc` to use the given `ufrag` and `pwd`. bool UpdateCandidateUfragPwd(SessionDescriptionInterface* jdesc, int mline_index, const std::string& ufrag, const std::string& pwd) { std::string content_name; if (mline_index == 0) { content_name = kAudioContentName; } else if (mline_index == 1) { content_name = kVideoContentName; } else { RTC_DCHECK_NOTREACHED(); } TransportInfo transport_info(content_name, MakeTransportDescription(ufrag, pwd)); SessionDescription* desc = const_cast(jdesc->description()); desc->RemoveTransportInfoByName(content_name); desc->AddTransportInfo(transport_info); for (size_t i = 0; i < jdesc_->number_of_mediasections(); ++i) { const IceCandidateCollection* cc = jdesc_->candidates(i); for (size_t j = 0; j < cc->count(); ++j) { if (cc->at(j)->sdp_mline_index() == mline_index) { const_cast(cc->at(j)->candidate()).set_username(ufrag); const_cast(cc->at(j)->candidate()).set_password(pwd); } } } return true; } void AddIceOptions(const std::string& content_name, const std::vector& transport_options) { ASSERT_TRUE(desc_.GetTransportInfoByName(content_name) != nullptr); TransportInfo transport_info = *(desc_.GetTransportInfoByName(content_name)); desc_.RemoveTransportInfoByName(content_name); transport_info.description.transport_options = transport_options; desc_.AddTransportInfo(transport_info); } void SetIceUfragPwd(const std::string& content_name, const std::string& ice_ufrag, const std::string& ice_pwd) { ASSERT_TRUE(desc_.GetTransportInfoByName(content_name) != nullptr); TransportInfo transport_info = *(desc_.GetTransportInfoByName(content_name)); desc_.RemoveTransportInfoByName(content_name); transport_info.description.ice_ufrag = ice_ufrag; transport_info.description.ice_pwd = ice_pwd; desc_.AddTransportInfo(transport_info); } void AddExtmap(bool encrypted) { audio_desc_ = new AudioContentDescription(*audio_desc_); video_desc_ = new VideoContentDescription(*video_desc_); audio_desc_->AddRtpHeaderExtension( RtpExtension(kExtmapUri, kExtmapId, encrypted)); video_desc_->AddRtpHeaderExtension( RtpExtension(kExtmapUri, kExtmapId, encrypted)); desc_.RemoveContentByName(kAudioContentName); desc_.RemoveContentByName(kVideoContentName); desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, absl::WrapUnique(audio_desc_)); desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, absl::WrapUnique(video_desc_)); } // Removes everything in StreamParams from the session description that is // used for a=ssrc lines. void RemoveSsrcSignalingFromStreamParams() { for (ContentInfo& content_info : jdesc_->description()->contents()) { // With Unified Plan there should be one StreamParams per m= section. StreamParams& stream = content_info.media_description()->mutable_streams()[0]; stream.ssrcs.clear(); stream.ssrc_groups.clear(); stream.cname.clear(); } } // Removes all a=ssrc lines from the SDP string, except for the // "a=ssrc:... cname:..." lines. void RemoveSsrcMsidLinesFromSdpString(std::string* sdp_string) { const char kAttributeSsrc[] = "a=ssrc"; const char kAttributeCname[] = "cname"; size_t ssrc_line_pos = sdp_string->find(kAttributeSsrc); while (ssrc_line_pos != std::string::npos) { size_t beg_line_pos = sdp_string->rfind('\n', ssrc_line_pos); size_t end_line_pos = sdp_string->find('\n', ssrc_line_pos); size_t cname_pos = sdp_string->find(kAttributeCname, ssrc_line_pos); if (cname_pos == std::string::npos || cname_pos > end_line_pos) { // Only erase a=ssrc lines that don't contain "cname". sdp_string->erase(beg_line_pos, end_line_pos - beg_line_pos); ssrc_line_pos = sdp_string->find(kAttributeSsrc, beg_line_pos); } else { // Skip the "a=ssrc:... cname" line and find the next "a=ssrc" line. ssrc_line_pos = sdp_string->find(kAttributeSsrc, end_line_pos); } } } // Removes all a=ssrc lines from the SDP string. void RemoveSsrcLinesFromSdpString(std::string* sdp_string) { const char kAttributeSsrc[] = "a=ssrc"; while (sdp_string->find(kAttributeSsrc) != std::string::npos) { size_t pos_ssrc_attribute = sdp_string->find(kAttributeSsrc); size_t beg_line_pos = sdp_string->rfind('\n', pos_ssrc_attribute); size_t end_line_pos = sdp_string->find('\n', pos_ssrc_attribute); sdp_string->erase(beg_line_pos, end_line_pos - beg_line_pos); } } bool TestSerializeDirection(RtpTransceiverDirection direction) { audio_desc_->set_direction(direction); video_desc_->set_direction(direction); std::string new_sdp = kSdpFullString; ReplaceDirection(direction, &new_sdp); std::string message = SerializeCurrentDescription(); EXPECT_EQ(new_sdp, message); return new_sdp == message; } bool TestSerializeRejected(bool audio_rejected, bool video_rejected) { audio_desc_ = new AudioContentDescription(*audio_desc_); video_desc_ = new VideoContentDescription(*video_desc_); desc_.RemoveContentByName(kAudioContentName); desc_.RemoveContentByName(kVideoContentName); desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, audio_rejected, absl::WrapUnique(audio_desc_)); desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, video_rejected, absl::WrapUnique(video_desc_)); SetIceUfragPwd(kAudioContentName, audio_rejected ? "" : kUfragVoice, audio_rejected ? "" : kPwdVoice); SetIceUfragPwd(kVideoContentName, video_rejected ? "" : kUfragVideo, video_rejected ? "" : kPwdVideo); std::string new_sdp = kSdpString; ReplaceRejected(audio_rejected, video_rejected, &new_sdp); EXPECT_EQ(new_sdp, SdpSerialize(MakeDescriptionWithoutCandidates())); return true; } void AddSctpDataChannel(bool use_sctpmap) { std::unique_ptr data( new SctpDataContentDescription()); sctp_desc_ = data.get(); sctp_desc_->set_use_sctpmap(use_sctpmap); sctp_desc_->set_protocol(kMediaProtocolUdpDtlsSctp); sctp_desc_->set_port(kDefaultSctpPort); desc_.AddContent(kDataContentName, MediaProtocolType::kSctp, std::move(data)); desc_.AddTransportInfo(TransportInfo( kDataContentName, MakeTransportDescription(kUfragData, kPwdData))); } bool TestDeserializeDirection(RtpTransceiverDirection direction) { std::string new_sdp = kSdpFullString; ReplaceDirection(direction, &new_sdp); std::unique_ptr new_jdesc = SdpDeserialize(new_sdp); EXPECT_THAT(new_jdesc, NotNull()); if (!new_jdesc) return false; audio_desc_->set_direction(direction); video_desc_->set_direction(direction); return MatchesCurrentDescription(new_jdesc); } bool TestDeserializeRejected(bool audio_rejected, bool video_rejected) { std::string new_sdp = kSdpString; ReplaceRejected(audio_rejected, video_rejected, &new_sdp); std::unique_ptr new_jdesc = SdpDeserialize(new_sdp); EXPECT_THAT(new_jdesc, NotNull()); if (!new_jdesc) return false; audio_desc_ = new AudioContentDescription(*audio_desc_); video_desc_ = new VideoContentDescription(*video_desc_); desc_.RemoveContentByName(kAudioContentName); desc_.RemoveContentByName(kVideoContentName); desc_.AddContent(kAudioContentName, MediaProtocolType::kRtp, audio_rejected, absl::WrapUnique(audio_desc_)); desc_.AddContent(kVideoContentName, MediaProtocolType::kRtp, video_rejected, absl::WrapUnique(video_desc_)); SetIceUfragPwd(kAudioContentName, audio_rejected ? "" : kUfragVoice, audio_rejected ? "" : kPwdVoice); SetIceUfragPwd(kVideoContentName, video_rejected ? "" : kUfragVideo, video_rejected ? "" : kPwdVideo); EXPECT_TRUE(MatchesCurrentDescriptionNoCandidates(new_jdesc)); return true; } void TestDeserializeExtmap(bool session_level, bool media_level, bool encrypted) { AddExtmap(encrypted); std::unique_ptr new_jdesc = CreateSessionDescription(SdpType::kOffer, jdesc_->session_id(), jdesc_->session_version(), desc_.Clone()); ASSERT_THAT(new_jdesc, NotNull()); std::string sdp_with_extmap = kSdpString; if (session_level) { InjectAfter(kSessionTime, encrypted ? kExtmapWithDirectionAndAttributeEncrypted : kExtmapWithDirectionAndAttribute, &sdp_with_extmap); } if (media_level) { InjectAfter(kAttributeIcePwdVoice, encrypted ? kExtmapWithDirectionAndAttributeEncrypted : kExtmapWithDirectionAndAttribute, &sdp_with_extmap); InjectAfter(kAttributeIcePwdVideo, encrypted ? kExtmapWithDirectionAndAttributeEncrypted : kExtmapWithDirectionAndAttribute, &sdp_with_extmap); } // The extmap can't be present at the same time in both session level and // media level. if (session_level && media_level) { SdpParseError error; EXPECT_THAT(SdpDeserialize(sdp_with_extmap, &error), IsNull()); EXPECT_NE(std::string::npos, error.description.find("a=extmap")); } else { EXPECT_TRUE(CompareSessionDescription(SdpDeserialize(sdp_with_extmap), new_jdesc)); } } void VerifyCodecParameter(const CodecParameterMap& params, const std::string& name, int expected_value) { CodecParameterMap::const_iterator found = params.find(name); ASSERT_TRUE(found != params.end()); EXPECT_EQ(found->second, absl::StrCat(expected_value)); } void TestDeserializeCodecParams( const CodecParams& params, std::unique_ptr& jdesc_output) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" // Include semantics for WebRTC Media Streams since it is supported by // this parser, and will be added to the SDP when serializing a session // description. "a=msid-semantic: WMS\r\n" // Pl type 111 preferred. "m=audio 9 RTP/SAVPF 111 104 103 105\r\n" // Pltype 111 listed before 103 and 104 in the map. "a=rtpmap:111 opus/48000/2\r\n" // Pltype 103 listed before 104. "a=rtpmap:103 ISAC/16000\r\n" "a=rtpmap:104 ISAC/32000\r\n" "a=rtpmap:105 telephone-event/8000\r\n" "a=fmtp:105 0-15,66,70\r\n" "a=fmtp:111 "; StringBuilder sb; sb << "minptime=" << params.min_ptime << "; stereo=" << params.stereo << "; sprop-stereo=" << params.sprop_stereo << "; useinbandfec=" << params.useinband << "; maxaveragebitrate=" << params.maxaveragebitrate << "\r\n" "a=ptime:" << params.ptime << "\r\n" "a=maxptime:" << params.max_ptime << "\r\n"; sdp += sb.Release(); // Pl type 100 preferred. sdp += "m=video 9 RTP/SAVPF 99 95 96\r\n" "a=rtpmap:96 VP9/90000\r\n" // out-of-order wrt the m= line. "a=rtpmap:99 VP8/90000\r\n" "a=rtpmap:95 RTX/90000\r\n" "a=fmtp:95 apt=99;\r\n"; // Deserialize SdpParseError error; jdesc_output = SdpDeserialize(sdp, &error); ASSERT_THAT(jdesc_output, NotNull()); const AudioContentDescription* acd = GetFirstAudioContentDescription(jdesc_output->description()); ASSERT_THAT(acd, NotNull()); ASSERT_FALSE(acd->codecs().empty()); Codec opus = acd->codecs()[0]; EXPECT_EQ("opus", opus.name); EXPECT_EQ(111, opus.id); VerifyCodecParameter(opus.params, "minptime", params.min_ptime); VerifyCodecParameter(opus.params, "stereo", params.stereo); VerifyCodecParameter(opus.params, "sprop-stereo", params.sprop_stereo); VerifyCodecParameter(opus.params, "useinbandfec", params.useinband); VerifyCodecParameter(opus.params, "maxaveragebitrate", params.maxaveragebitrate); for (const auto& codec : acd->codecs()) { VerifyCodecParameter(codec.params, "ptime", params.ptime); VerifyCodecParameter(codec.params, "maxptime", params.max_ptime); } Codec dtmf = acd->codecs()[3]; EXPECT_EQ("telephone-event", dtmf.name); EXPECT_EQ(105, dtmf.id); EXPECT_EQ(3u, dtmf.params.size()); // ptime and max_ptime count as parameters. EXPECT_EQ(dtmf.params.begin()->first, ""); EXPECT_EQ(dtmf.params.begin()->second, "0-15,66,70"); const VideoContentDescription* vcd = GetFirstVideoContentDescription(jdesc_output->description()); ASSERT_THAT(vcd, NotNull()); ASSERT_FALSE(vcd->codecs().empty()); Codec vp8 = vcd->codecs()[0]; EXPECT_EQ("VP8", vp8.name); EXPECT_EQ(99, vp8.id); Codec rtx = vcd->codecs()[1]; EXPECT_EQ("RTX", rtx.name); EXPECT_EQ(95, rtx.id); VerifyCodecParameter(rtx.params, "apt", vp8.id); // VP9 is listed last in the m= line so should come after VP8 and RTX. Codec vp9 = vcd->codecs()[2]; EXPECT_EQ("VP9", vp9.name); EXPECT_EQ(96, vp9.id); } void TestDeserializeRtcpFb( std::unique_ptr& jdesc_output, bool use_wildcard, bool use_ccfb) { std::string sdp_session_and_audio = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" // Include semantics for WebRTC Media Streams since it is supported by // this parser, and will be added to the SDP when serializing a session // description. "a=msid-semantic: WMS\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "a=rtpmap:111 opus/48000/2\r\n"; std::string sdp_video = "m=video 3457 RTP/SAVPF 101\r\n" "a=rtpmap:101 VP8/90000\r\n" "a=rtcp-fb:101 goog-lntf\r\n" "a=rtcp-fb:101 nack\r\n" "a=rtcp-fb:101 nack pli\r\n" "a=rtcp-fb:101 goog-remb\r\n"; StringBuilder sb; sb << sdp_session_and_audio; sb << "a=rtcp-fb:" << (use_wildcard ? "*" : "111") << " nack\r\n"; if (use_ccfb) { sb << "a=rtcp-fb:" << (use_wildcard ? "*" : "111") << " ack ccfb\r\n"; } sb << sdp_video; sb << "a=rtcp-fb:" << (use_wildcard ? "*" : "101") << " ccm fir\r\n"; if (use_ccfb) { sb << "a=rtcp-fb:" << (use_wildcard ? "*" : "101") << " ack ccfb\r\n"; } std::string sdp = sb.Release(); // Deserialize SdpParseError error; jdesc_output = SdpDeserialize(sdp, &error); ASSERT_THAT(jdesc_output, NotNull()); const AudioContentDescription* acd = GetFirstAudioContentDescription(jdesc_output->description()); ASSERT_THAT(acd, NotNull()); ASSERT_FALSE(acd->codecs().empty()); Codec opus = acd->codecs()[0]; EXPECT_EQ(111, opus.id); EXPECT_TRUE(opus.HasFeedbackParam( FeedbackParam(kRtcpFbParamNack, kParamValueEmpty))); const VideoContentDescription* vcd = GetFirstVideoContentDescription(jdesc_output->description()); ASSERT_THAT(vcd, NotNull()); ASSERT_FALSE(vcd->codecs().empty()); Codec vp8 = vcd->codecs()[0]; EXPECT_EQ(vp8.name, "VP8"); EXPECT_EQ(101, vp8.id); EXPECT_TRUE(vp8.HasFeedbackParam( FeedbackParam(kRtcpFbParamLntf, kParamValueEmpty))); EXPECT_TRUE(vp8.HasFeedbackParam( FeedbackParam(kRtcpFbParamNack, kParamValueEmpty))); EXPECT_TRUE(vp8.HasFeedbackParam( FeedbackParam(kRtcpFbParamNack, kRtcpFbNackParamPli))); EXPECT_TRUE(vp8.HasFeedbackParam( FeedbackParam(kRtcpFbParamRemb, kParamValueEmpty))); EXPECT_TRUE(vp8.HasFeedbackParam( FeedbackParam(kRtcpFbParamCcm, kRtcpFbCcmParamFir))); MediaContentDescription* video_media = GetFirstMediaContent(jdesc_output->description(), MediaType::VIDEO) ->media_description(); MediaContentDescription* audio_media = GetFirstMediaContent(jdesc_output->description(), MediaType::AUDIO) ->media_description(); if (use_ccfb) { EXPECT_TRUE(video_media->rtcp_fb_ack_ccfb()) << "Wildcard: " << use_wildcard; EXPECT_TRUE(audio_media->rtcp_fb_ack_ccfb()) << "Wildcard: " << use_wildcard; } else { EXPECT_FALSE(video_media->rtcp_fb_ack_ccfb()); EXPECT_FALSE(audio_media->rtcp_fb_ack_ccfb()); } } // Two SDP messages can mean the same thing but be different strings, e.g. // some of the lines can be serialized in different order. // However, a deserialized description can be compared field by field and has // no order. If deserializer has already been tested, serializing then // deserializing and comparing session descriptions will test // the serializer sufficiently. void TestSerialize( const std::unique_ptr& jdesc) { ASSERT_THAT(jdesc, NotNull()); std::string message = SdpSerialize(jdesc); std::unique_ptr jdesc_output_des = SdpDeserialize(message); ASSERT_THAT(jdesc_output_des, NotNull()); EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output_des)); } // Returns a new session description with a clone of the inner // SessionDescription but no candidates. The 'connection address' field // for the audio and video descriptions, previously set from the candidates, // will be reset on both the returned object and the inner. std::unique_ptr MakeDescriptionWithoutCandidates() { audio_desc_->set_connection_address(SocketAddress("0.0.0.0", 9)); video_desc_->set_connection_address(SocketAddress("0.0.0.0", 9)); return CreateSessionDescription(kDummyType, kSessionId, kSessionVersion, desc_.Clone()); } // Returns an SDP string generated from the current state of `desc_` // together with the default set of candidates. std::string SerializeCurrentDescription() { return SdpSerialize(NewSessionDescriptionWithCandidates()); } protected: SessionDescription desc_; AudioContentDescription* audio_desc_; VideoContentDescription* video_desc_; SctpDataContentDescription* sctp_desc_; std::vector candidates_; std::unique_ptr jcandidate_; std::unique_ptr jdesc_; }; void TestMismatch(const std::string& string1, const std::string& string2) { int position = 0; for (size_t i = 0; i < string1.length() && i < string2.length(); ++i) { if (string1.c_str()[i] != string2.c_str()[i]) { position = static_cast(i); break; } } EXPECT_EQ(0, position) << "Strings mismatch at the " << position << " character\n" " 1: " << string1.substr(position, 20) << "\n" " 2: " << string2.substr(position, 20) << "\n"; } TEST_F(WebRtcSdpTest, SerializeSessionDescription) { // SessionDescription with desc and candidates. std::string message = SdpSerialize(jdesc_); TestMismatch(std::string(kSdpFullString), message); } // This basically tests if SdpSerialize() checks the description() property. // kRollback is the only type that's allowed to have a null description field // so that's what we'll use. TEST_F(WebRtcSdpTest, SerializeSessionDescriptionEmpty) { std::unique_ptr jdesc_empty = CreateRollbackSessionDescription(kSessionId, kSessionVersion); ASSERT_THAT(jdesc_empty, NotNull()); EXPECT_THAT(jdesc_empty->description(), IsNull()); EXPECT_EQ("", SdpSerialize(jdesc_empty)); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithoutCandidates) { // Session description with desc but without candidates. EXPECT_EQ(SdpSerialize(MakeDescriptionWithoutCandidates()), kSdpString); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithBundles) { ContentGroup group1(GROUP_TYPE_BUNDLE); group1.AddContentName(kAudioContentName); group1.AddContentName(kVideoContentName); desc_.AddGroup(group1); ContentGroup group2(GROUP_TYPE_BUNDLE); group2.AddContentName(kAudioContentName2); desc_.AddGroup(group2); std::string message = SerializeCurrentDescription(); std::string sdp_with_bundle = kSdpFullString; InjectAfter(kSessionTime, "a=group:BUNDLE audio_content_name video_content_name\r\n" "a=group:BUNDLE audio_content_name_2\r\n", &sdp_with_bundle); EXPECT_EQ(sdp_with_bundle, message); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithBandwidth) { VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); vcd->set_bandwidth(100 * 1000 + 755); // Integer division will drop the 755. vcd->set_bandwidth_type("AS"); AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); acd->set_bandwidth(555); acd->set_bandwidth_type("TIAS"); std::string message = SerializeCurrentDescription(); std::string sdp_with_bandwidth = kSdpFullString; InjectAfter("c=IN IP4 74.125.224.39\r\n", "b=AS:100\r\n", &sdp_with_bandwidth); InjectAfter("c=IN IP4 74.125.127.126\r\n", "b=TIAS:555\r\n", &sdp_with_bandwidth); EXPECT_EQ(sdp_with_bandwidth, message); } // Should default to b=AS if bandwidth_type isn't set. TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithMissingBandwidthType) { VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); vcd->set_bandwidth(100 * 1000); std::string message = SerializeCurrentDescription(); std::string sdp_with_bandwidth = kSdpFullString; InjectAfter("c=IN IP4 74.125.224.39\r\n", "b=AS:100\r\n", &sdp_with_bandwidth); EXPECT_EQ(sdp_with_bandwidth, message); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithIceOptions) { std::vector transport_options; transport_options.push_back(kIceOption1); transport_options.push_back(kIceOption3); AddIceOptions(kAudioContentName, transport_options); transport_options.clear(); transport_options.push_back(kIceOption2); transport_options.push_back(kIceOption3); AddIceOptions(kVideoContentName, transport_options); std::string message = SerializeCurrentDescription(); std::string sdp_with_ice_options = kSdpFullString; InjectAfter(kAttributeIcePwdVoice, "a=ice-options:iceoption1 iceoption3\r\n", &sdp_with_ice_options); InjectAfter(kAttributeIcePwdVideo, "a=ice-options:iceoption2 iceoption3\r\n", &sdp_with_ice_options); EXPECT_EQ(sdp_with_ice_options, message); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithRecvOnlyContent) { EXPECT_TRUE(TestSerializeDirection(RtpTransceiverDirection::kRecvOnly)); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithSendOnlyContent) { EXPECT_TRUE(TestSerializeDirection(RtpTransceiverDirection::kSendOnly)); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithInactiveContent) { EXPECT_TRUE(TestSerializeDirection(RtpTransceiverDirection::kInactive)); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithAudioRejected) { EXPECT_TRUE(TestSerializeRejected(true, false)); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithVideoRejected) { EXPECT_TRUE(TestSerializeRejected(false, true)); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithAudioVideoRejected) { EXPECT_TRUE(TestSerializeRejected(true, true)); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithSctpDataChannel) { bool use_sctpmap = true; AddSctpDataChannel(use_sctpmap); std::string message = SdpSerialize(MakeDescriptionWithoutCandidates()); std::string expected_sdp = kSdpString; expected_sdp.append(kSdpSctpDataChannelString); EXPECT_EQ(message, expected_sdp); } std::unique_ptr MutateSctpPort( const SessionDescriptionInterface* jdesc, const SessionDescription& desc, int port) { EXPECT_THAT(jdesc, NotNull()); if (!jdesc) return nullptr; // Take our pre-built session description and change the SCTP port. std::unique_ptr mutant = desc.Clone(); SctpDataContentDescription* dcdesc = mutant->GetContentDescriptionByName(kDataContentName)->as_sctp(); dcdesc->set_port(port); return CreateSessionDescription(jdesc->GetType(), jdesc->session_id(), jdesc->session_version(), std::move(mutant)); } TEST_F(WebRtcSdpTest, SerializeWithSctpDataChannelAndNewPort) { bool use_sctpmap = true; AddSctpDataChannel(use_sctpmap); const int kNewPort = 1234; std::unique_ptr jsep_desc = MutateSctpPort(MakeDescriptionWithoutCandidates().get(), desc_, kNewPort); ASSERT_THAT(jsep_desc, NotNull()); std::string message = SdpSerialize(jsep_desc); std::string expected_sdp = kSdpString; expected_sdp.append(kSdpSctpDataChannelString); absl::StrReplaceAll( {{absl::StrCat(kDefaultSctpPort), absl::StrCat(kNewPort)}}, &expected_sdp); EXPECT_EQ(expected_sdp, message); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithExtmapAllowMixed) { jdesc_->description()->set_extmap_allow_mixed(true); TestSerialize(jdesc_); } TEST_F(WebRtcSdpTest, SerializeMediaContentDescriptionWithExtmapAllowMixed) { MediaContentDescription* video_desc = jdesc_->description()->GetContentDescriptionByName(kVideoContentName); ASSERT_THAT(video_desc, NotNull()); MediaContentDescription* audio_desc = jdesc_->description()->GetContentDescriptionByName(kAudioContentName); ASSERT_THAT(audio_desc, NotNull()); video_desc->set_extmap_allow_mixed_level( MediaContentDescription::AttributeLevel::kMedia); audio_desc->set_extmap_allow_mixed_level( MediaContentDescription::AttributeLevel::kMedia); TestSerialize(jdesc_); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithExtmap) { bool encrypted = false; AddExtmap(encrypted); std::string message = SdpSerialize(MakeDescriptionWithoutCandidates()); std::string sdp_with_extmap = kSdpString; InjectAfter("a=mid:audio_content_name\r\n", kExtmap, &sdp_with_extmap); InjectAfter("a=mid:video_content_name\r\n", kExtmap, &sdp_with_extmap); EXPECT_EQ(sdp_with_extmap, message); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithExtmapEncrypted) { bool encrypted = true; AddExtmap(encrypted); TestSerialize(CreateSessionDescription(kDummyType, kSessionId, kSessionVersion, desc_.Clone())); } TEST_F(WebRtcSdpTest, SerializeCandidates) { std::string message = SdpSerializeCandidate(*jcandidate_); EXPECT_EQ(std::string(kRawCandidate), message); Candidate candidate_with_ufrag(candidates_.front()); candidate_with_ufrag.set_username("ABC"); jcandidate_.reset(new IceCandidate(std::string("audio_content_name"), 0, candidate_with_ufrag)); message = SdpSerializeCandidate(*jcandidate_); EXPECT_EQ(std::string(kRawCandidate) + " ufrag ABC", message); Candidate candidate_with_network_info(candidates_.front()); candidate_with_network_info.set_network_id(1); jcandidate_.reset( new IceCandidate(std::string("audio"), 0, candidate_with_network_info)); message = SdpSerializeCandidate(*jcandidate_); EXPECT_EQ(std::string(kRawCandidate) + " network-id 1", message); candidate_with_network_info.set_network_cost(999); jcandidate_.reset( new IceCandidate(std::string("audio"), 0, candidate_with_network_info)); message = SdpSerializeCandidate(*jcandidate_); EXPECT_EQ(std::string(kRawCandidate) + " network-id 1 network-cost 999", message); } TEST_F(WebRtcSdpTest, SerializeHostnameCandidate) { SocketAddress address("a.test", 1234); Candidate candidate(ICE_CANDIDATE_COMPONENT_RTP, "udp", address, kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation1); IceCandidate jcandidate(std::string("audio_content_name"), 0, candidate); std::string message = SdpSerializeCandidate(jcandidate); EXPECT_EQ(std::string(kRawHostnameCandidate), message); } TEST_F(WebRtcSdpTest, SerializeTcpCandidates) { Candidate candidate(ICE_CANDIDATE_COMPONENT_RTP, "tcp", SocketAddress("192.168.1.5", 9), kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation1); candidate.set_tcptype(TCPTYPE_ACTIVE_STR); std::unique_ptr jcandidate( new IceCandidate(std::string("audio_content_name"), 0, candidate)); std::string message = SdpSerializeCandidate(*jcandidate); EXPECT_EQ(std::string(kSdpTcpActiveCandidate), message); } // Test serializing a TCP candidate that came in with a missing tcptype. This // shouldn't happen according to the spec, but our implementation has been // accepting this for quite some time, treating it as a passive candidate. // // So, we should be able to at least convert such candidates to and from SDP. // See: bugs.webrtc.org/11423 TEST_F(WebRtcSdpTest, ParseTcpCandidateWithoutTcptype) { std::string missing_tcptype = "candidate:a0+B/1 1 tcp 2130706432 192.168.1.5 9999 typ host"; std::unique_ptr jcandidate = NewCandidate(missing_tcptype); ASSERT_THAT(jcandidate, NotNull()); EXPECT_EQ(std::string(TCPTYPE_PASSIVE_STR), jcandidate->candidate().tcptype()); } TEST_F(WebRtcSdpTest, ParseSslTcpCandidate) { std::string ssltcp = "candidate:a0+B/1 1 ssltcp 2130706432 192.168.1.5 9999 typ host tcptype " "passive"; std::unique_ptr jcandidate = NewCandidate(ssltcp); ASSERT_THAT(jcandidate, NotNull()); EXPECT_EQ(std::string("ssltcp"), jcandidate->candidate().protocol()); } TEST_F(WebRtcSdpTest, SerializeSessionDescriptionWithH264) { Codec h264_codec = CreateVideoCodec("H264"); // Id must be valid, but value doesn't matter. h264_codec.id = 123; h264_codec.SetParam("profile-level-id", "42e01f"); h264_codec.SetParam("level-asymmetry-allowed", "1"); h264_codec.SetParam("packetization-mode", "1"); video_desc_->AddCodec(h264_codec); std::string message = SerializeCurrentDescription(); size_t after_pt = message.find(" H264/90000"); ASSERT_NE(after_pt, std::string::npos); size_t before_pt = message.rfind("a=rtpmap:", after_pt); ASSERT_NE(before_pt, std::string::npos); before_pt += strlen("a=rtpmap:"); std::string pt = message.substr(before_pt, after_pt - before_pt); // TODO(hta): Check if payload type `pt` occurs in the m=video line. std::string to_find = "a=fmtp:" + pt + " "; size_t fmtp_pos = message.find(to_find); ASSERT_NE(std::string::npos, fmtp_pos) << "Failed to find " << to_find; size_t fmtp_endpos = message.find('\n', fmtp_pos); ASSERT_NE(std::string::npos, fmtp_endpos); std::string fmtp_value = message.substr(fmtp_pos, fmtp_endpos); EXPECT_NE(std::string::npos, fmtp_value.find("level-asymmetry-allowed=1")); EXPECT_NE(std::string::npos, fmtp_value.find("packetization-mode=1")); EXPECT_NE(std::string::npos, fmtp_value.find("profile-level-id=42e01f")); // Check that there are no spaces after semicolons. // https://bugs.webrtc.org/5793 EXPECT_EQ(std::string::npos, fmtp_value.find("; ")); } TEST_F(WebRtcSdpTest, DeserializeSessionDescription) { // Deserialize & Verify EXPECT_TRUE( CompareSessionDescription(jdesc_, SdpDeserialize(kSdpFullString))); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutMline) { const char kSdpWithoutMline[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=msid-semantic: WMS local_stream_1 local_stream_2\r\n"; // Deserialize std::unique_ptr jdesc = SdpDeserialize(kSdpWithoutMline); ASSERT_THAT(jdesc, NotNull()); EXPECT_EQ(0u, jdesc->description()->contents().size()); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutCarriageReturn) { std::string sdp_without_carriage_return = kSdpFullString; Replace("\r\n", "\n", &sdp_without_carriage_return); // Deserialize & Verify EXPECT_TRUE(CompareSessionDescription( jdesc_, SdpDeserialize(sdp_without_carriage_return))); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutCandidates) { // SessionDescription with desc but without candidates. std::unique_ptr jdesc_no_candidates = CreateSessionDescription(kDummyType, kSessionId, kSessionVersion, desc_.Clone()); ASSERT_THAT(jdesc_no_candidates, NotNull()); EXPECT_TRUE(CompareSessionDescription(jdesc_no_candidates, SdpDeserialize(kSdpString))); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutRtpmap) { static const char kSdpNoRtpmapString[] = "v=0\r\n" "o=- 11 22 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 49232 RTP/AVP 0 18 103\r\n" // Codec that doesn't appear in the m= line will be ignored. "a=rtpmap:104 ISAC/32000\r\n" // The rtpmap line for static payload codec is optional. "a=rtpmap:18 G729/8000\r\n" "a=rtpmap:103 ISAC/16000\r\n"; std::unique_ptr jdesc = SdpDeserialize(kSdpNoRtpmapString); ASSERT_THAT(jdesc, NotNull()); AudioContentDescription* audio = GetFirstAudioContentDescription(jdesc->description()); Codecs ref_codecs; // The codecs in the AudioContentDescription should be in the same order as // the payload types (s) on the m= line. ref_codecs.push_back(CreateAudioCodec(0, "PCMU", 8000, 1)); ref_codecs.push_back(CreateAudioCodec(18, "G729", 8000, 1)); ref_codecs.push_back(CreateAudioCodec(103, "ISAC", 16000, 1)); EXPECT_EQ(ref_codecs, audio->codecs()); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutRtpmapButWithFmtp) { static const char kSdpNoRtpmapString[] = "v=0\r\n" "o=- 11 22 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 49232 RTP/AVP 18 103\r\n" "a=fmtp:18 annexb=yes\r\n" "a=rtpmap:103 ISAC/16000\r\n"; std::unique_ptr jdesc = SdpDeserialize(kSdpNoRtpmapString); ASSERT_THAT(jdesc, NotNull()); AudioContentDescription* audio = GetFirstAudioContentDescription(jdesc->description()); Codec g729 = audio->codecs()[0]; EXPECT_EQ("G729", g729.name); EXPECT_EQ(8000, g729.clockrate); EXPECT_EQ(18, g729.id); CodecParameterMap::iterator found = g729.params.find("annexb"); ASSERT_TRUE(found != g729.params.end()); EXPECT_EQ(found->second, "yes"); Codec isac = audio->codecs()[1]; EXPECT_EQ("ISAC", isac.name); EXPECT_EQ(103, isac.id); EXPECT_EQ(16000, isac.clockrate); } // Ensure that we can deserialize SDP with a=fingerprint properly. TEST_F(WebRtcSdpTest, DeserializeJsepSessionDescriptionWithFingerprint) { std::string sdp_with_fingerprint = kSdpString; InjectAfter(kAttributeIcePwdVoice, kFingerprint, &sdp_with_fingerprint); InjectAfter(kAttributeIcePwdVideo, kFingerprint, &sdp_with_fingerprint); EXPECT_TRUE(MatchesCurrentDescriptionNoCandidates( SdpDeserialize(sdp_with_fingerprint))); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithBundle) { std::string sdp_with_bundle = kSdpFullString; InjectAfter(kSessionTime, "a=group:BUNDLE audio_content_name video_content_name\r\n", &sdp_with_bundle); std::unique_ptr jdesc_with_bundle = SdpDeserialize(sdp_with_bundle); ASSERT_THAT(jdesc_with_bundle, NotNull()); ContentGroup group(GROUP_TYPE_BUNDLE); group.AddContentName(kAudioContentName); group.AddContentName(kVideoContentName); desc_.AddGroup(group); EXPECT_TRUE(MatchesCurrentDescription(jdesc_with_bundle)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithBandwidth) { std::string sdp_with_bandwidth = kSdpFullString; InjectAfter("a=mid:video_content_name\r\na=sendrecv\r\n", "b=AS:100\r\n", &sdp_with_bandwidth); InjectAfter("a=mid:audio_content_name\r\na=sendrecv\r\n", "b=AS:50\r\n", &sdp_with_bandwidth); std::unique_ptr jdesc_with_bandwidth = SdpDeserialize(sdp_with_bandwidth); ASSERT_THAT(jdesc_with_bandwidth, NotNull()); VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); vcd->set_bandwidth(100 * 1000); AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); acd->set_bandwidth(50 * 1000); EXPECT_TRUE(MatchesCurrentDescription(jdesc_with_bandwidth)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithTiasBandwidth) { std::string sdp_with_bandwidth = kSdpFullString; InjectAfter("a=mid:video_content_name\r\na=sendrecv\r\n", "b=TIAS:100000\r\n", &sdp_with_bandwidth); InjectAfter("a=mid:audio_content_name\r\na=sendrecv\r\n", "b=TIAS:50000\r\n", &sdp_with_bandwidth); std::unique_ptr jdesc_with_bandwidth = SdpDeserialize(sdp_with_bandwidth); ASSERT_THAT(jdesc_with_bandwidth, NotNull()); VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); vcd->set_bandwidth(100 * 1000); AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); acd->set_bandwidth(50 * 1000); EXPECT_TRUE(MatchesCurrentDescription(jdesc_with_bandwidth)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithUnknownBandwidthModifier) { std::string sdp_with_bandwidth = kSdpFullString; InjectAfter("a=mid:video_content_name\r\na=sendrecv\r\n", "b=unknown:100000\r\n", &sdp_with_bandwidth); InjectAfter("a=mid:audio_content_name\r\na=sendrecv\r\n", "b=unknown:50000\r\n", &sdp_with_bandwidth); std::unique_ptr jdesc_with_bandwidth = SdpDeserialize(sdp_with_bandwidth); ASSERT_THAT(jdesc_with_bandwidth, NotNull()); VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); vcd->set_bandwidth(-1); AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); acd->set_bandwidth(-1); EXPECT_TRUE(MatchesCurrentDescription(jdesc_with_bandwidth)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithIceOptions) { std::string sdp_with_ice_options = kSdpFullString; InjectAfter(kSessionTime, "a=ice-options:iceoption3\r\n", &sdp_with_ice_options); InjectAfter(kAttributeIcePwdVoice, "a=ice-options:iceoption1\r\n", &sdp_with_ice_options); InjectAfter(kAttributeIcePwdVideo, "a=ice-options:iceoption2\r\n", &sdp_with_ice_options); std::unique_ptr jdesc_with_ice_options = SdpDeserialize(sdp_with_ice_options); ASSERT_THAT(jdesc_with_ice_options, NotNull()); std::vector transport_options; transport_options.push_back(kIceOption3); transport_options.push_back(kIceOption1); AddIceOptions(kAudioContentName, transport_options); transport_options.clear(); transport_options.push_back(kIceOption3); transport_options.push_back(kIceOption2); AddIceOptions(kVideoContentName, transport_options); EXPECT_TRUE(MatchesCurrentDescription(jdesc_with_ice_options)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithUfragPwd) { // Remove the original ice-ufrag and ice-pwd std::string sdp_with_ufrag_pwd = kSdpFullString; EXPECT_TRUE(RemoveCandidateUfragPwd(&sdp_with_ufrag_pwd)); // Add session level ufrag and pwd InjectAfter(kSessionTime, "a=ice-pwd:session+level+icepwd\r\n" "a=ice-ufrag:session+level+iceufrag\r\n", &sdp_with_ufrag_pwd); // Add media level ufrag and pwd for audio InjectAfter( "a=mid:audio_content_name\r\n", "a=ice-pwd:media+level+icepwd\r\na=ice-ufrag:media+level+iceufrag\r\n", &sdp_with_ufrag_pwd); // Update the candidate ufrag and pwd to the expected ones. EXPECT_TRUE(UpdateCandidateUfragPwd(jdesc_.get(), 0, "media+level+iceufrag", "media+level+icepwd")); EXPECT_TRUE(UpdateCandidateUfragPwd(jdesc_.get(), 1, "session+level+iceufrag", "session+level+icepwd")); EXPECT_TRUE( CompareSessionDescription(jdesc_, SdpDeserialize(sdp_with_ufrag_pwd))); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRecvOnlyContent) { EXPECT_TRUE(TestDeserializeDirection(RtpTransceiverDirection::kRecvOnly)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithSendOnlyContent) { EXPECT_TRUE(TestDeserializeDirection(RtpTransceiverDirection::kSendOnly)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithInactiveContent) { EXPECT_TRUE(TestDeserializeDirection(RtpTransceiverDirection::kInactive)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRejectedAudio) { EXPECT_TRUE(TestDeserializeRejected(true, false)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRejectedVideo) { EXPECT_TRUE(TestDeserializeRejected(false, true)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithRejectedAudioVideo) { EXPECT_TRUE(TestDeserializeRejected(true, true)); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithExtmapAllowMixed) { jdesc_->description()->set_extmap_allow_mixed(true); std::string sdp_with_extmap_allow_mixed = kSdpFullString; // Deserialize & Verify EXPECT_TRUE(CompareSessionDescription( jdesc_, SdpDeserialize(sdp_with_extmap_allow_mixed))); } TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutExtmapAllowMixed) { jdesc_->description()->set_extmap_allow_mixed(false); std::string sdp_without_extmap_allow_mixed = kSdpFullString; Replace(kExtmapAllowMixed, "", &sdp_without_extmap_allow_mixed); // Deserialize & Verify EXPECT_TRUE(CompareSessionDescription( jdesc_, SdpDeserialize(sdp_without_extmap_allow_mixed))); } TEST_F(WebRtcSdpTest, DeserializeMediaContentDescriptionWithExtmapAllowMixed) { MediaContentDescription* video_desc = jdesc_->description()->GetContentDescriptionByName(kVideoContentName); ASSERT_THAT(video_desc, NotNull()); MediaContentDescription* audio_desc = jdesc_->description()->GetContentDescriptionByName(kAudioContentName); ASSERT_THAT(audio_desc, NotNull()); video_desc->set_extmap_allow_mixed_level( MediaContentDescription::AttributeLevel::kMedia); audio_desc->set_extmap_allow_mixed_level( MediaContentDescription::AttributeLevel::kMedia); std::string sdp_with_extmap_allow_mixed = kSdpFullString; InjectAfter("a=mid:audio_content_name\r\n", kExtmapAllowMixed, &sdp_with_extmap_allow_mixed); InjectAfter("a=mid:video_content_name\r\n", kExtmapAllowMixed, &sdp_with_extmap_allow_mixed); // Deserialize & Verify EXPECT_TRUE(CompareSessionDescription( jdesc_, SdpDeserialize(sdp_with_extmap_allow_mixed))); } TEST_F(WebRtcSdpTest, DeserializeCandidate) { std::string sdp = kSdpOneCandidate; std::unique_ptr jcandidate = NewCandidate(sdp); ASSERT_THAT(jcandidate, NotNull()); EXPECT_EQ(kDummyMid, jcandidate->sdp_mid()); EXPECT_EQ(kDummyIndex, jcandidate->sdp_mline_index()); EXPECT_TRUE(jcandidate->candidate().IsEquivalent(jcandidate_->candidate())); EXPECT_EQ(0, jcandidate->candidate().network_cost()); // Candidate line without generation extension. sdp = kSdpOneCandidate; Replace(" generation 2", "", &sdp); jcandidate = NewCandidate(sdp); ASSERT_THAT(jcandidate, NotNull()); EXPECT_EQ(kDummyMid, jcandidate->sdp_mid()); EXPECT_EQ(kDummyIndex, jcandidate->sdp_mline_index()); Candidate expected = jcandidate_->candidate(); expected.set_generation(0); EXPECT_TRUE(jcandidate->candidate().IsEquivalent(expected)); // Candidate with network id and/or cost. sdp = kSdpOneCandidate; Replace(" generation 2", " generation 2 network-id 2", &sdp); jcandidate = NewCandidate(sdp); ASSERT_THAT(jcandidate, NotNull()); EXPECT_EQ(kDummyMid, jcandidate->sdp_mid()); EXPECT_EQ(kDummyIndex, jcandidate->sdp_mline_index()); expected = jcandidate_->candidate(); expected.set_network_id(2); EXPECT_TRUE(jcandidate->candidate().IsEquivalent(expected)); EXPECT_EQ(0, jcandidate->candidate().network_cost()); // Add network cost Replace(" network-id 2", " network-id 2 network-cost 9", &sdp); jcandidate = NewCandidate(sdp); ASSERT_THAT(jcandidate, NotNull()); EXPECT_TRUE(jcandidate->candidate().IsEquivalent(expected)); EXPECT_EQ(9, jcandidate->candidate().network_cost()); sdp = kSdpTcpActiveCandidate; jcandidate = NewCandidate(sdp); ASSERT_THAT(jcandidate, NotNull()); // Make a Candidate equivalent to kSdpTcpCandidate string. Candidate candidate(ICE_CANDIDATE_COMPONENT_RTP, "tcp", SocketAddress("192.168.1.5", 9), kCandidatePriority, "", "", IceCandidateType::kHost, kCandidateGeneration, kCandidateFoundation1); std::unique_ptr jcandidate_template( new IceCandidate(std::string("audio_content_name"), 0, candidate)); EXPECT_TRUE( jcandidate->candidate().IsEquivalent(jcandidate_template->candidate())); ASSERT_THAT(NewCandidate(kSdpTcpPassiveCandidate), NotNull()); ASSERT_THAT(NewCandidate(kSdpTcpSOCandidate), NotNull()); } // This test verifies the deserialization of candidate-attribute // as per RFC 5245. Candidate-attribute will be of the format // candidate:. This format will be used when candidates // are trickled. TEST_F(WebRtcSdpTest, DeserializeRawCandidateAttribute) { std::string candidate_attribute = kRawCandidate; auto jcandidate = NewCandidate(candidate_attribute); ASSERT_THAT(jcandidate, NotNull()); EXPECT_EQ(kDummyMid, jcandidate->sdp_mid()); EXPECT_EQ(kDummyIndex, jcandidate->sdp_mline_index()); EXPECT_TRUE(jcandidate->candidate().IsEquivalent(jcandidate_->candidate())); EXPECT_EQ(2u, jcandidate->candidate().generation()); // Candidate line without generation extension. candidate_attribute = kRawCandidate; Replace(" generation 2", "", &candidate_attribute); jcandidate = NewCandidate(candidate_attribute); ASSERT_THAT(jcandidate, NotNull()); EXPECT_EQ(kDummyMid, jcandidate->sdp_mid()); EXPECT_EQ(kDummyIndex, jcandidate->sdp_mline_index()); Candidate expected = jcandidate_->candidate(); expected.set_generation(0); EXPECT_TRUE(jcandidate->candidate().IsEquivalent(expected)); // Candidate line without candidate: candidate_attribute = kRawCandidate; Replace("candidate:", "", &candidate_attribute); ASSERT_THAT(NewCandidate(candidate_attribute), IsNull()); // Candidate line with IPV6 address. ASSERT_TRUE(NewCandidate(kRawIPV6Candidate)); // Candidate line with hostname address. ASSERT_THAT(NewCandidate(kRawHostnameCandidate), NotNull()); } // This test verifies that the deserialization of an invalid candidate string // fails. TEST_F(WebRtcSdpTest, DeserializeInvalidCandidiate) { std::string candidate_attribute = kRawCandidate; ASSERT_THAT(NewCandidate(candidate_attribute), NotNull()); candidate_attribute.replace(0, 1, "x"); EXPECT_THAT(NewCandidate(candidate_attribute), IsNull()); candidate_attribute = kSdpOneCandidate; candidate_attribute.replace(0, 1, "x"); EXPECT_THAT(NewCandidate(candidate_attribute), IsNull()); candidate_attribute = kRawCandidate; candidate_attribute.append("\r\n"); candidate_attribute.append(kRawCandidate); EXPECT_THAT(NewCandidate(candidate_attribute), IsNull()); EXPECT_THAT(NewCandidate(kSdpTcpInvalidCandidate), IsNull()); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannels) { bool use_sctpmap = true; AddSctpDataChannel(use_sctpmap); std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelString); // Verify with UDP/DTLS/SCTP (already in kSdpSctpDataChannelString). std::unique_ptr jdesc = NewSessionDescriptionNoCandidates(); EXPECT_TRUE(CompareSessionDescription(jdesc, SdpDeserialize(sdp_with_data))); // Verify with DTLS/SCTP. sdp_with_data.replace(sdp_with_data.find(kUdpDtlsSctp), strlen(kUdpDtlsSctp), kDtlsSctp); EXPECT_TRUE(CompareSessionDescription(jdesc, SdpDeserialize(sdp_with_data))); // Verify with TCP/DTLS/SCTP. sdp_with_data.replace(sdp_with_data.find(kDtlsSctp), strlen(kDtlsSctp), kTcpDtlsSctp); EXPECT_TRUE(CompareSessionDescription(jdesc, SdpDeserialize(sdp_with_data))); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithSctpPort) { bool use_sctpmap = false; AddSctpDataChannel(use_sctpmap); std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelStringWithSctpPort); EXPECT_TRUE( MatchesCurrentDescriptionNoCandidates(SdpDeserialize(sdp_with_data))); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithSctpColonPort) { bool use_sctpmap = false; AddSctpDataChannel(use_sctpmap); std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelStringWithSctpColonPort); EXPECT_TRUE( MatchesCurrentDescriptionNoCandidates(SdpDeserialize(sdp_with_data))); } TEST_F(WebRtcSdpTest, DeserializeSdpWithNegativeSctpPort) { std::string sdp = kSdpString; sdp.append(kSdpSctpDataChannelStringWithSctpColonPort); SdpParseError error; absl::StrReplaceAll({{absl::StrCat(kDefaultSctpPort), absl::StrCat("-1")}}, &sdp); std::unique_ptr output = SdpDeserialize(sdp, &error); ASSERT_THAT(output, IsNull()); EXPECT_EQ(error.line, "a=sctp-port:-1"); } TEST_F(WebRtcSdpTest, DeserializeSdpWithTooLargeSctpPort) { std::string sdp = kSdpString; sdp.append(kSdpSctpDataChannelStringWithSctpColonPort); SdpParseError error; absl::StrReplaceAll({{absl::StrCat(kDefaultSctpPort), absl::StrCat("70000")}}, &sdp); std::unique_ptr output = SdpDeserialize(sdp, &error); ASSERT_THAT(output, IsNull()); EXPECT_EQ(error.line, "a=sctp-port:70000"); } TEST_F(WebRtcSdpTest, DeserializeSdpWithStringSctpPort) { std::string sdp = kSdpString; sdp.append(kSdpSctpDataChannelStringWithSctpColonPort); SdpParseError error; absl::StrReplaceAll( {{absl::StrCat(kDefaultSctpPort), absl::StrCat("webrtc")}}, &sdp); std::unique_ptr output = SdpDeserialize(sdp, &error); ASSERT_THAT(output, IsNull()); EXPECT_EQ(error.line, "a=sctp-port:webrtc"); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithSctpInit) { bool use_sctpmap = false; AddSctpDataChannel(use_sctpmap); std::unique_ptr jdesc = NewSessionDescriptionNoCandidates(); ASSERT_THAT(jdesc, NotNull()); SctpDataContentDescription* dcdesc = jdesc->description() ->GetContentDescriptionByName(kDataContentName) ->as_sctp(); // base64("CookieMonster") std::vector cookie_monster = {0x43, 0x6f, 0x6f, 0x6b, 0x69, 0x65, 0x4d, 0x6f, 0x6e, 0x73, 0x74, 0x65, 0x72}; dcdesc->set_sctp_init(cookie_monster); std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelStringWithSctpInit); SdpParseError error; std::unique_ptr jdesc_output = SdpDeserialize(sdp_with_data, &error); ASSERT_THAT(jdesc, NotNull()); EXPECT_TRUE(CompareSessionDescription(jdesc, jdesc_output)); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithSctpInitWithoutParams) { std::string invalid_line = "a=sctp-init"; std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelStringWithSctpColonPort); sdp_with_data.append(invalid_line + "\r\n"); SdpParseError error; std::unique_ptr jdesc = SdpDeserialize(sdp_with_data, &error); EXPECT_THAT(jdesc, IsNull()); EXPECT_EQ(invalid_line, error.line); EXPECT_EQ("Failed to get the value of attribute: sctp-init", error.description); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithSctpInitInvalidBase64) { std::string invalid_line = "a=sctp-init:*"; std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelStringWithSctpColonPort); sdp_with_data.append(invalid_line + "\r\n"); SdpParseError error; std::unique_ptr jdesc = SdpDeserialize(sdp_with_data, &error); EXPECT_THAT(jdesc, IsNull()); EXPECT_EQ(invalid_line, error.line); EXPECT_EQ("Base64 decoding of sctp-init failed.", error.description); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsButWrongMediaType) { bool use_sctpmap = true; AddSctpDataChannel(use_sctpmap); std::string sdp = kSdpSessionString; sdp += kSdpSctpDataChannelString; const char needle[] = "m=application "; sdp.replace(sdp.find(needle), strlen(needle), "m=application:bogus "); std::unique_ptr jdesc_output = SdpDeserialize(sdp); ASSERT_THAT(jdesc_output, NotNull()); EXPECT_EQ(1u, jdesc_output->description()->contents().size()); EXPECT_TRUE(jdesc_output->description()->contents()[0].rejected); } // Helper function to set the max-message-size parameter in the // SCTP data codec. std::unique_ptr CreateSessionDescriptionWithSctpMaxMessageSize(const SessionDescription& desc, int new_value) { std::unique_ptr mutant = desc.Clone(); SctpDataContentDescription* dcdesc = mutant->GetContentDescriptionByName(kDataContentName)->as_sctp(); dcdesc->set_max_message_size(new_value); return CreateSessionDescription(kDummyType, kSessionId, kSessionVersion, std::move(mutant)); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithMaxMessageSize) { bool use_sctpmap = false; AddSctpDataChannel(use_sctpmap); std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelStringWithSctpColonPort); sdp_with_data.append("a=max-message-size:12345\r\n"); EXPECT_TRUE(CompareSessionDescription( CreateSessionDescriptionWithSctpMaxMessageSize(desc_, 12345), SdpDeserialize(sdp_with_data))); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsWithInvalidMaxMessageSize) { std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelStringWithSctpColonPort); sdp_with_data.append("a=max-message-size:-1\r\n"); SdpParseError error; std::unique_ptr output = SdpDeserialize(sdp_with_data, &error); ASSERT_THAT(output, IsNull()); EXPECT_EQ(error.line, "a=max-message-size:-1"); } TEST_F(WebRtcSdpTest, SerializeSdpWithSctpDataChannelWithMaxMessageSize) { bool use_sctpmap = false; AddSctpDataChannel(use_sctpmap); std::unique_ptr jdesc = CreateSessionDescriptionWithSctpMaxMessageSize(desc_, 12345); std::string message = SdpSerialize(jdesc); EXPECT_NE(std::string::npos, message.find("\r\na=max-message-size:12345\r\n")); EXPECT_TRUE(CompareSessionDescription(jdesc, SdpDeserialize(message))); } TEST_F(WebRtcSdpTest, SerializeSdpWithSctpDataChannelWithDefaultMaxMessageSize) { // https://tools.ietf.org/html/draft-ietf-mmusic-sctp-sdp-26#section-6 // The default max message size is 64K. bool use_sctpmap = false; AddSctpDataChannel(use_sctpmap); std::unique_ptr jdesc = CreateSessionDescriptionWithSctpMaxMessageSize(desc_, 65536); std::string message = SdpSerialize(jdesc); EXPECT_EQ(std::string::npos, message.find("\r\na=max-message-size:")); EXPECT_TRUE(CompareSessionDescription(jdesc, SdpDeserialize(message))); } // Test to check the behaviour if sctp-port is specified // on the m= line and in a=sctp-port. TEST_F(WebRtcSdpTest, DeserializeSdpWithMultiSctpPort) { bool use_sctpmap = true; AddSctpDataChannel(use_sctpmap); std::string sdp_with_data = kSdpString; // Append m= attributes sdp_with_data.append(kSdpSctpDataChannelString); // Append a=sctp-port attribute sdp_with_data.append("a=sctp-port 5000\r\n"); EXPECT_THAT(SdpDeserialize(sdp_with_data), IsNull()); } // Test behavior if a=rtpmap occurs in an SCTP section. TEST_F(WebRtcSdpTest, DeserializeSdpWithRtpmapAttribute) { std::string sdp_with_data = kSdpString; // Append m= attributes sdp_with_data.append(kSdpSctpDataChannelString); // Append a=rtpmap attribute sdp_with_data.append("a=rtpmap:111 opus/48000/2\r\n"); // Correct behavior is to ignore the extra attribute. EXPECT_THAT(SdpDeserialize(sdp_with_data), NotNull()); } // For crbug/344475. TEST_F(WebRtcSdpTest, DeserializeSdpWithCorruptedSctpDataChannels) { std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelString); // Remove the "\n" at the end. sdp_with_data = sdp_with_data.substr(0, sdp_with_data.size() - 1); EXPECT_THAT(SdpDeserialize(sdp_with_data), IsNull()); // No crash is a pass. } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelAndUnusualPort) { bool use_sctpmap = true; AddSctpDataChannel(use_sctpmap); // First setup the expected session description. // Then get the deserialized session description. std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelString); absl::StrReplaceAll( {{absl::StrCat(kDefaultSctpPort), absl::StrCat(kUnusualSctpPort)}}, &sdp_with_data); EXPECT_TRUE(CompareSessionDescription( MutateSctpPort(jdesc_.get(), desc_, kUnusualSctpPort), SdpDeserialize(sdp_with_data))); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelAndUnusualPortInAttribute) { bool use_sctpmap = false; AddSctpDataChannel(use_sctpmap); // We need to test the deserialized description from // kSdpSctpDataChannelStringWithSctpPort for // draft-ietf-mmusic-sctp-sdp-07 // a=sctp-port std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelStringWithSctpPort); absl::StrReplaceAll( {{absl::StrCat(kDefaultSctpPort), absl::StrCat(kUnusualSctpPort)}}, &sdp_with_data); EXPECT_TRUE(CompareSessionDescription( MutateSctpPort(jdesc_.get(), desc_, kUnusualSctpPort), SdpDeserialize(sdp_with_data))); } TEST_F(WebRtcSdpTest, DeserializeSdpWithSctpDataChannelsAndBandwidth) { bool use_sctpmap = true; AddSctpDataChannel(use_sctpmap); SctpDataContentDescription* dcd = GetFirstSctpDataContentDescription(&desc_); dcd->set_bandwidth(100 * 1000); std::string sdp_with_bandwidth = kSdpString; sdp_with_bandwidth.append(kSdpSctpDataChannelString); InjectAfter("a=mid:data_content_name\r\n", "b=AS:100\r\n", &sdp_with_bandwidth); // SCTP has congestion control, so we shouldn't limit the bandwidth // as we do for RTP. EXPECT_TRUE(MatchesCurrentDescriptionNoCandidates( SdpDeserialize(sdp_with_bandwidth))); } class WebRtcSdpExtmapTest : public WebRtcSdpTest, public ::testing::WithParamInterface {}; TEST_P(WebRtcSdpExtmapTest, DeserializeSessionDescriptionWithSessionLevelExtmap) { bool encrypted = GetParam(); TestDeserializeExtmap(true, false, encrypted); } TEST_P(WebRtcSdpExtmapTest, DeserializeSessionDescriptionWithMediaLevelExtmap) { bool encrypted = GetParam(); TestDeserializeExtmap(false, true, encrypted); } TEST_P(WebRtcSdpExtmapTest, DeserializeSessionDescriptionWithInvalidExtmap) { bool encrypted = GetParam(); TestDeserializeExtmap(true, true, encrypted); } INSTANTIATE_TEST_SUITE_P(Encrypted, WebRtcSdpExtmapTest, ::testing::Values(false, true)); TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutEndLineBreak) { std::string sdp = kSdpFullString; sdp = sdp.substr(0, sdp.size() - 2); // Remove \r\n at the end. // Deserialize SdpParseError error; EXPECT_THAT(SdpDeserialize(sdp, &error), IsNull()); const std::string lastline = "a=ssrc:3 cname:stream_1_cname"; EXPECT_EQ(lastline, error.line); EXPECT_EQ("Invalid SDP line.", error.description); } TEST_F(WebRtcSdpTest, DeserializeCandidateWithDifferentTransport) { std::string new_sdp = kSdpOneCandidate; Replace("udp", "unsupported_transport", &new_sdp); EXPECT_THAT(NewCandidate(new_sdp), IsNull()); new_sdp = kSdpOneCandidate; Replace("udp", "uDP", &new_sdp); auto jcandidate = NewCandidate(new_sdp); ASSERT_THAT(jcandidate, NotNull()); EXPECT_EQ(kDummyMid, jcandidate->sdp_mid()); EXPECT_EQ(kDummyIndex, jcandidate->sdp_mline_index()); EXPECT_TRUE(jcandidate->candidate().IsEquivalent(jcandidate_->candidate())); } TEST_F(WebRtcSdpTest, DeserializeCandidateWithUfragPwd) { auto jcandidate = NewCandidate(kSdpOneCandidateWithUfragPwd); ASSERT_THAT(jcandidate, NotNull()); EXPECT_EQ(kDummyMid, jcandidate->sdp_mid()); EXPECT_EQ(kDummyIndex, jcandidate->sdp_mline_index()); Candidate ref_candidate = jcandidate_->candidate(); ref_candidate.set_username("user_rtp"); ref_candidate.set_password("password_rtp"); EXPECT_TRUE(jcandidate->candidate().IsEquivalent(ref_candidate)); } TEST_F(WebRtcSdpTest, DeserializeSdpWithConferenceFlag) { // Deserialize std::unique_ptr jdesc = SdpDeserialize(kSdpConferenceString); ASSERT_THAT(jdesc, NotNull()); // Verify AudioContentDescription* audio = GetFirstAudioContentDescription(jdesc->description()); EXPECT_TRUE(audio->conference_mode()); VideoContentDescription* video = GetFirstVideoContentDescription(jdesc->description()); EXPECT_TRUE(video->conference_mode()); } TEST_F(WebRtcSdpTest, SerializeSdpWithConferenceFlag) { // We tested deserialization already above, so just test that if we serialize // and deserialize the flag doesn't disappear. std::unique_ptr jdesc = SdpDeserialize(kSdpConferenceString); ASSERT_THAT(jdesc, NotNull()); std::string reserialized = SdpSerialize(jdesc); jdesc = SdpDeserialize(reserialized); ASSERT_THAT(jdesc, NotNull()); // Verify. AudioContentDescription* audio = GetFirstAudioContentDescription(jdesc->description()); EXPECT_TRUE(audio->conference_mode()); VideoContentDescription* video = GetFirstVideoContentDescription(jdesc->description()); EXPECT_TRUE(video->conference_mode()); } TEST_F(WebRtcSdpTest, SerializeAndDeserializeRemoteNetEstimate) { { // By default remote estimates are disabled. std::unique_ptr dst = SdpDeserialize(SdpSerialize(jdesc_)); ASSERT_THAT(dst, NotNull()); EXPECT_FALSE( GetFirstVideoContentDescription(dst->description())->remote_estimate()); } { // When remote estimate is enabled, the setting is propagated via SDP. GetFirstVideoContentDescription(jdesc_->description()) ->set_remote_estimate(true); std::unique_ptr dst = SdpDeserialize(SdpSerialize(jdesc_)); ASSERT_THAT(dst, NotNull()); EXPECT_TRUE( GetFirstVideoContentDescription(dst->description())->remote_estimate()); } } TEST_F(WebRtcSdpTest, DeserializeBrokenSdp) { const char kSdpDestroyer[] = "!@#$%^&"; const char kSdpEmptyType[] = " =candidate"; const char kSdpEqualAsPlus[] = "a+candidate"; const char kSdpSpaceAfterEqual[] = "a= candidate"; const char kSdpUpperType[] = "A=candidate"; const char kSdpEmptyLine[] = ""; const char kSdpMissingValue[] = "a="; const char kSdpBrokenFingerprint[] = "a=fingerprint:sha-1 " "4AAD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB"; const char kSdpExtraField[] = "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB XXX"; const char kSdpMissingSpace[] = "a=fingerprint:sha-1" "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB"; // MD5 is not allowed in fingerprints. const char kSdpMd5[] = "a=fingerprint:md5 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B"; // Broken session description ExpectParseFailure("v=", kSdpDestroyer); ExpectParseFailure("o=", kSdpDestroyer); ExpectParseFailure("s=-", kSdpDestroyer); // Broken time description ExpectParseFailure("t=", kSdpDestroyer); // Broken media description ExpectParseFailure("m=audio", "c=IN IP4 74.125.224.39"); ExpectParseFailure("m=video", kSdpDestroyer); ExpectParseFailure("m=", "c=IN IP4 74.125.224.39"); // Invalid lines ExpectParseFailure("a=candidate", kSdpEmptyType); ExpectParseFailure("a=candidate", kSdpEqualAsPlus); ExpectParseFailure("a=candidate", kSdpSpaceAfterEqual); ExpectParseFailure("a=candidate", kSdpUpperType); // Bogus fingerprint replacing a=sendrev. We selected this attribute // because it's orthogonal to what we are replacing and hence // safe. ExpectParseFailure("a=sendrecv", kSdpBrokenFingerprint); ExpectParseFailure("a=sendrecv", kSdpExtraField); ExpectParseFailure("a=sendrecv", kSdpMissingSpace); ExpectParseFailure("a=sendrecv", kSdpMd5); // Empty Line ExpectParseFailure("a=rtcp:2347 IN IP4 74.125.127.126", kSdpEmptyLine); ExpectParseFailure("a=rtcp:2347 IN IP4 74.125.127.126", kSdpMissingValue); } TEST_F(WebRtcSdpTest, DeserializeSdpWithInvalidAttributeValue) { // ssrc ExpectParseFailure("a=ssrc:1", "a=ssrc:badvalue"); ExpectParseFailure("a=ssrc-group:FEC 2 3", "a=ssrc-group:FEC badvalue 3"); // rtpmap ExpectParseFailure("a=rtpmap:111 ", "a=rtpmap:badvalue "); ExpectParseFailure("opus/48000/2", "opus/badvalue/2"); ExpectParseFailure("opus/48000/2", "opus/48000/badvalue"); // candidate ExpectParseFailure("1 udp 2130706432", "badvalue udp 2130706432"); ExpectParseFailure("1 udp 2130706432", "1 udp badvalue"); ExpectParseFailure("192.168.1.5 1234", "192.168.1.5 badvalue"); ExpectParseFailure("rport 2346", "rport badvalue"); ExpectParseFailure("rport 2346 generation 2", "rport 2346 generation badvalue"); // m line ExpectParseFailure("m=audio 2345 RTP/SAVPF 111 103 104", "m=audio 2345 RTP/SAVPF 111 badvalue 104"); // bandwidth ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", "b=AS:badvalue\r\n", "b=AS:badvalue"); ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", "b=AS\r\n", "b=AS"); ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", "b=AS:\r\n", "b=AS:"); ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", "b=AS:12:34\r\n", "b=AS:12:34"); // rtcp-fb ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", "a=rtcp-fb:badvalue nack\r\n", "a=rtcp-fb:badvalue nack"); // extmap ExpectParseFailureWithNewLines("a=mid:video_content_name\r\n", "a=extmap:badvalue http://example.com\r\n", "a=extmap:badvalue http://example.com"); } TEST_F(WebRtcSdpTest, DeserializeSdpWithReorderedPltypes) { const char kSdpWithReorderedPlTypesString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 104 103\r\n" // Pl type 104 preferred. "a=rtpmap:111 opus/48000/2\r\n" // Pltype 111 listed before 103 and 104 // in the map. "a=rtpmap:103 ISAC/16000\r\n" // Pltype 103 listed before 104 in the map. "a=rtpmap:104 ISAC/32000\r\n"; // Deserialize std::unique_ptr jdesc_output = SdpDeserialize(kSdpWithReorderedPlTypesString); ASSERT_THAT(jdesc_output, NotNull()); const AudioContentDescription* acd = GetFirstAudioContentDescription(jdesc_output->description()); ASSERT_THAT(acd, NotNull()); ASSERT_FALSE(acd->codecs().empty()); EXPECT_EQ("ISAC", acd->codecs()[0].name); EXPECT_EQ(32000, acd->codecs()[0].clockrate); EXPECT_EQ(104, acd->codecs()[0].id); } TEST_F(WebRtcSdpTest, DeserializeSerializeCodecParams) { CodecParams params; params.max_ptime = 40; params.ptime = 30; params.min_ptime = 10; params.sprop_stereo = 1; params.stereo = 1; params.useinband = 1; params.maxaveragebitrate = 128000; std::unique_ptr jdesc_output; TestDeserializeCodecParams(params, jdesc_output); TestSerialize(jdesc_output); } TEST_F(WebRtcSdpTest, DeserializeSerializeRtcpFb) { const bool kUseWildcard = false; std::unique_ptr jdesc_output; TestDeserializeRtcpFb(jdesc_output, kUseWildcard, /* use_ccfb= */ false); TestSerialize(jdesc_output); } TEST_F(WebRtcSdpTest, DeserializeSerializeRtcpFbWildcard) { const bool kUseWildcard = true; std::unique_ptr jdesc_output; TestDeserializeRtcpFb(jdesc_output, kUseWildcard, /* use_ccfb= */ false); TestSerialize(jdesc_output); } TEST_F(WebRtcSdpTest, DeserializeSerializeRtcpWithCcfb) { std::unique_ptr jdesc_output; TestDeserializeRtcpFb(jdesc_output, /* use_wildcard= */ false, /* use_ccfb= */ true); TestSerialize(jdesc_output); TestDeserializeRtcpFb(jdesc_output, /* use_wildcard= */ true, /* use_ccfb= */ true); TestSerialize(jdesc_output); } TEST_F(WebRtcSdpTest, DeserializeVideoFmtp) { const char kSdpWithFmtpString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=video 3457 RTP/SAVPF 120\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=fmtp:120 x-google-min-bitrate=10;x-google-max-quantization=40\r\n"; // Deserialize std::unique_ptr jdesc_output = SdpDeserialize(kSdpWithFmtpString); ASSERT_THAT(jdesc_output, NotNull()); const VideoContentDescription* vcd = GetFirstVideoContentDescription(jdesc_output->description()); ASSERT_THAT(vcd, NotNull()); ASSERT_FALSE(vcd->codecs().empty()); Codec vp8 = vcd->codecs()[0]; EXPECT_EQ("VP8", vp8.name); EXPECT_EQ(120, vp8.id); CodecParameterMap::iterator found = vp8.params.find("x-google-min-bitrate"); ASSERT_TRUE(found != vp8.params.end()); EXPECT_EQ(found->second, "10"); found = vp8.params.find("x-google-max-quantization"); ASSERT_TRUE(found != vp8.params.end()); EXPECT_EQ(found->second, "40"); } TEST_F(WebRtcSdpTest, DeserializeVideoFmtpWithSprops) { const char kSdpWithFmtpString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=video 49170 RTP/AVP 98\r\n" "a=rtpmap:98 H264/90000\r\n" "a=fmtp:98 profile-level-id=42A01E; " "sprop-parameter-sets=Z0IACpZTBYmI,aMljiA==\r\n"; // Deserialize. std::unique_ptr jdesc_output = SdpDeserialize(kSdpWithFmtpString); ASSERT_THAT(jdesc_output, NotNull()); const VideoContentDescription* vcd = GetFirstVideoContentDescription(jdesc_output->description()); ASSERT_THAT(vcd, NotNull()); ASSERT_FALSE(vcd->codecs().empty()); Codec h264 = vcd->codecs()[0]; EXPECT_EQ("H264", h264.name); EXPECT_EQ(98, h264.id); CodecParameterMap::const_iterator found = h264.params.find("profile-level-id"); ASSERT_TRUE(found != h264.params.end()); EXPECT_EQ(found->second, "42A01E"); found = h264.params.find("sprop-parameter-sets"); ASSERT_TRUE(found != h264.params.end()); EXPECT_EQ(found->second, "Z0IACpZTBYmI,aMljiA=="); } TEST_F(WebRtcSdpTest, DeserializeVideoFmtpWithSpace) { const char kSdpWithFmtpString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=video 3457 RTP/SAVPF 120\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=fmtp:120 x-google-min-bitrate=10; x-google-max-quantization=40\r\n"; // Deserialize std::unique_ptr jdesc_output = SdpDeserialize(kSdpWithFmtpString); ASSERT_THAT(jdesc_output, NotNull()); const VideoContentDescription* vcd = GetFirstVideoContentDescription(jdesc_output->description()); ASSERT_THAT(vcd, NotNull()); ASSERT_FALSE(vcd->codecs().empty()); Codec vp8 = vcd->codecs()[0]; EXPECT_EQ("VP8", vp8.name); EXPECT_EQ(120, vp8.id); CodecParameterMap::iterator found = vp8.params.find("x-google-min-bitrate"); ASSERT_TRUE(found != vp8.params.end()); EXPECT_EQ(found->second, "10"); found = vp8.params.find("x-google-max-quantization"); ASSERT_TRUE(found != vp8.params.end()); EXPECT_EQ(found->second, "40"); } TEST_F(WebRtcSdpTest, DeserializePacketizationAttributeWithIllegalValue) { const char kSdpWithPacketizationString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=packetization:111 unknownpacketizationattributeforaudio\r\n" "m=video 3457 RTP/SAVPF 120 121 122\r\n" "a=rtpmap:120 VP8/90000\r\n" "a=packetization:120 raw\r\n" "a=rtpmap:121 VP9/90000\r\n" "a=rtpmap:122 H264/90000\r\n" "a=packetization:122 unknownpacketizationattributevalue\r\n"; std::unique_ptr jdesc_output = SdpDeserialize(kSdpWithPacketizationString); ASSERT_THAT(jdesc_output, NotNull()); AudioContentDescription* acd = GetFirstAudioContentDescription(jdesc_output->description()); ASSERT_THAT(acd, NotNull()); ASSERT_THAT(acd->codecs(), testing::SizeIs(1)); Codec opus = acd->codecs()[0]; EXPECT_EQ(opus.name, "opus"); EXPECT_EQ(opus.id, 111); const VideoContentDescription* vcd = GetFirstVideoContentDescription(jdesc_output->description()); ASSERT_THAT(vcd, NotNull()); ASSERT_THAT(vcd->codecs(), testing::SizeIs(3)); Codec vp8 = vcd->codecs()[0]; EXPECT_EQ(vp8.name, "VP8"); EXPECT_EQ(vp8.id, 120); EXPECT_EQ(vp8.packetization, "raw"); Codec vp9 = vcd->codecs()[1]; EXPECT_EQ(vp9.name, "VP9"); EXPECT_EQ(vp9.id, 121); EXPECT_EQ(vp9.packetization, std::nullopt); Codec h264 = vcd->codecs()[2]; EXPECT_EQ(h264.name, "H264"); EXPECT_EQ(h264.id, 122); EXPECT_EQ(h264.packetization, std::nullopt); } TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithUnknownParameter) { AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); Codecs codecs = acd->codecs(); codecs[0].params["unknown-future-parameter"] = "SomeFutureValue"; acd->set_codecs(codecs); std::string message = SerializeCurrentDescription(); std::string sdp_with_fmtp = kSdpFullString; InjectAfter("a=rtpmap:111 opus/48000/2\r\n", "a=fmtp:111 unknown-future-parameter=SomeFutureValue\r\n", &sdp_with_fmtp); EXPECT_EQ(sdp_with_fmtp, message); } TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithKnownFmtpParameter) { AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); Codecs codecs = acd->codecs(); codecs[0].params["stereo"] = "1"; acd->set_codecs(codecs); std::string message = SerializeCurrentDescription(); std::string sdp_with_fmtp = kSdpFullString; InjectAfter("a=rtpmap:111 opus/48000/2\r\n", "a=fmtp:111 stereo=1\r\n", &sdp_with_fmtp); EXPECT_EQ(sdp_with_fmtp, message); } TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithPTimeAndMaxPTime) { AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); Codecs codecs = acd->codecs(); codecs[0].params["ptime"] = "20"; codecs[0].params["maxptime"] = "120"; acd->set_codecs(codecs); std::string message = SerializeCurrentDescription(); std::string sdp_with_fmtp = kSdpFullString; InjectAfter("a=rtpmap:104 ISAC/32000\r\n", "a=maxptime:120\r\n" // No comma here. String merging! "a=ptime:20\r\n", &sdp_with_fmtp); EXPECT_EQ(sdp_with_fmtp, message); } TEST_F(WebRtcSdpTest, SerializeAudioFmtpWithTelephoneEvent) { AudioContentDescription* acd = GetFirstAudioContentDescription(&desc_); Codecs codecs = acd->codecs(); Codec dtmf = CreateAudioCodec(105, "telephone-event", 8000, 1); dtmf.params[""] = "0-15"; codecs.push_back(dtmf); acd->set_codecs(codecs); std::string message = SerializeCurrentDescription(); std::string sdp_with_fmtp = kSdpFullString; InjectAfter("m=audio 2345 RTP/SAVPF 111 103 104", " 105", &sdp_with_fmtp); InjectAfter( "a=rtpmap:104 ISAC/32000\r\n", "a=rtpmap:105 telephone-event/8000\r\n" // No comma here. String merging! "a=fmtp:105 0-15\r\n", &sdp_with_fmtp); EXPECT_EQ(sdp_with_fmtp, message); } TEST_F(WebRtcSdpTest, SerializeVideoFmtp) { VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); Codecs codecs = vcd->codecs(); codecs[0].params["x-google-min-bitrate"] = "10"; vcd->set_codecs(codecs); std::string message = SerializeCurrentDescription(); std::string sdp_with_fmtp = kSdpFullString; InjectAfter("a=rtpmap:120 VP8/90000\r\n", "a=fmtp:120 x-google-min-bitrate=10\r\n", &sdp_with_fmtp); EXPECT_EQ(sdp_with_fmtp, message); } TEST_F(WebRtcSdpTest, SerializeVideoPacketizationAttribute) { VideoContentDescription* vcd = GetFirstVideoContentDescription(&desc_); Codecs codecs = vcd->codecs(); codecs[0].packetization = "raw"; vcd->set_codecs(codecs); std::string message = SerializeCurrentDescription(); std::string sdp_with_packetization = kSdpFullString; InjectAfter("a=rtpmap:120 VP8/90000\r\n", "a=packetization:120 raw\r\n", &sdp_with_packetization); EXPECT_EQ(sdp_with_packetization, message); } TEST_F(WebRtcSdpTest, DeserializeAndSerializeSdpWithIceLite) { // Deserialize the baseline description, making sure it's ICE full. std::string sdp_with_icelite = kSdpFullString; std::unique_ptr jdesc_with_icelite = SdpDeserialize(sdp_with_icelite); ASSERT_THAT(jdesc_with_icelite, NotNull()); SessionDescription* desc = jdesc_with_icelite->description(); const TransportInfo* tinfo1 = desc->GetTransportInfoByName("audio_content_name"); EXPECT_EQ(ICEMODE_FULL, tinfo1->description.ice_mode); const TransportInfo* tinfo2 = desc->GetTransportInfoByName("video_content_name"); EXPECT_EQ(ICEMODE_FULL, tinfo2->description.ice_mode); // Add "a=ice-lite" and deserialize, making sure it's ICE lite. InjectAfter(kSessionTime, "a=ice-lite\r\n", &sdp_with_icelite); jdesc_with_icelite = SdpDeserialize(sdp_with_icelite); ASSERT_THAT(jdesc_with_icelite, NotNull()); desc = jdesc_with_icelite->description(); const TransportInfo* atinfo = desc->GetTransportInfoByName("audio_content_name"); EXPECT_EQ(ICEMODE_LITE, atinfo->description.ice_mode); const TransportInfo* vtinfo = desc->GetTransportInfoByName("video_content_name"); EXPECT_EQ(ICEMODE_LITE, vtinfo->description.ice_mode); // Now that we know deserialization works, we can use TestSerialize to test // serialization. TestSerialize(jdesc_with_icelite); } // Verifies that the candidates in the input SDP are parsed and serialized // correctly in the output SDP. TEST_F(WebRtcSdpTest, RoundTripSdpWithSctpDataChannelsWithCandidates) { std::string sdp_with_data = kSdpString; sdp_with_data.append(kSdpSctpDataChannelWithCandidatesString); std::unique_ptr jdesc_output = SdpDeserialize(sdp_with_data); ASSERT_THAT(jdesc_output, NotNull()); EXPECT_EQ(sdp_with_data, SdpSerialize(jdesc_output)); } TEST_F(WebRtcSdpTest, SerializeDtlsSetupAttribute) { TransportInfo audio_transport_info = *(desc_.GetTransportInfoByName(kAudioContentName)); EXPECT_EQ(CONNECTIONROLE_NONE, audio_transport_info.description.connection_role); audio_transport_info.description.connection_role = CONNECTIONROLE_ACTIVE; TransportInfo video_transport_info = *(desc_.GetTransportInfoByName(kVideoContentName)); EXPECT_EQ(CONNECTIONROLE_NONE, video_transport_info.description.connection_role); video_transport_info.description.connection_role = CONNECTIONROLE_ACTIVE; desc_.RemoveTransportInfoByName(kAudioContentName); desc_.RemoveTransportInfoByName(kVideoContentName); desc_.AddTransportInfo(audio_transport_info); desc_.AddTransportInfo(video_transport_info); std::string message = SerializeCurrentDescription(); std::string sdp_with_dtlssetup = kSdpFullString; // Now adding `setup` attribute. InjectAfter(kFingerprint, "a=setup:active\r\n", &sdp_with_dtlssetup); EXPECT_EQ(sdp_with_dtlssetup, message); } TEST_F(WebRtcSdpTest, DeserializeDtlsSetupAttributeActpass) { std::string sdp_with_dtlssetup = kSdpFullString; InjectAfter(kSessionTime, "a=setup:actpass\r\n", &sdp_with_dtlssetup); std::unique_ptr jdesc_with_dtlssetup = SdpDeserialize(sdp_with_dtlssetup); ASSERT_THAT(jdesc_with_dtlssetup, NotNull()); SessionDescription* desc = jdesc_with_dtlssetup->description(); const TransportInfo* atinfo = desc->GetTransportInfoByName("audio_content_name"); EXPECT_EQ(CONNECTIONROLE_ACTPASS, atinfo->description.connection_role); const TransportInfo* vtinfo = desc->GetTransportInfoByName("video_content_name"); EXPECT_EQ(CONNECTIONROLE_ACTPASS, vtinfo->description.connection_role); } TEST_F(WebRtcSdpTest, DeserializeDtlsSetupAttributeActive) { std::string sdp_with_dtlssetup = kSdpFullString; InjectAfter(kSessionTime, "a=setup:active\r\n", &sdp_with_dtlssetup); std::unique_ptr jdesc_with_dtlssetup = SdpDeserialize(sdp_with_dtlssetup); ASSERT_THAT(jdesc_with_dtlssetup, NotNull()); SessionDescription* desc = jdesc_with_dtlssetup->description(); const TransportInfo* atinfo = desc->GetTransportInfoByName("audio_content_name"); EXPECT_EQ(CONNECTIONROLE_ACTIVE, atinfo->description.connection_role); const TransportInfo* vtinfo = desc->GetTransportInfoByName("video_content_name"); EXPECT_EQ(CONNECTIONROLE_ACTIVE, vtinfo->description.connection_role); } TEST_F(WebRtcSdpTest, DeserializeDtlsSetupAttributePassive) { std::string sdp_with_dtlssetup = kSdpFullString; InjectAfter(kSessionTime, "a=setup:passive\r\n", &sdp_with_dtlssetup); std::unique_ptr jdesc_with_dtlssetup = SdpDeserialize(sdp_with_dtlssetup); ASSERT_THAT(jdesc_with_dtlssetup, NotNull()); SessionDescription* desc = jdesc_with_dtlssetup->description(); const TransportInfo* atinfo = desc->GetTransportInfoByName("audio_content_name"); EXPECT_EQ(CONNECTIONROLE_PASSIVE, atinfo->description.connection_role); const TransportInfo* vtinfo = desc->GetTransportInfoByName("video_content_name"); EXPECT_EQ(CONNECTIONROLE_PASSIVE, vtinfo->description.connection_role); } // Verifies that the order of the serialized m-lines follows the order of the // ContentInfo in SessionDescription, and vise versa for deserialization. TEST_F(WebRtcSdpTest, MediaContentOrderMaintainedRoundTrip) { const std::string media_content_sdps[3] = {kSdpAudioString, kSdpVideoString, kSdpSctpDataChannelString}; const MediaType media_types[3] = {MediaType::AUDIO, MediaType::VIDEO, MediaType::DATA}; // Verifies all 6 permutations. for (size_t i = 0; i < 6; ++i) { size_t media_content_in_sdp[3]; // The index of the first media content. media_content_in_sdp[0] = i / 2; // The index of the second media content. media_content_in_sdp[1] = (media_content_in_sdp[0] + i % 2 + 1) % 3; // The index of the third media content. media_content_in_sdp[2] = (media_content_in_sdp[0] + (i + 1) % 2 + 1) % 3; std::string sdp_string = kSdpSessionString; for (size_t j = 0; j < 3; ++j) sdp_string += media_content_sdps[media_content_in_sdp[j]]; std::unique_ptr jdesc = SdpDeserialize(sdp_string); ASSERT_THAT(jdesc, NotNull()); SessionDescription* desc = jdesc->description(); EXPECT_EQ(3u, desc->contents().size()); for (size_t j = 0; j < 3; ++j) { const MediaContentDescription* mdesc = desc->contents()[j].media_description(); EXPECT_EQ(media_types[media_content_in_sdp[j]], mdesc->type()); } std::string serialized_sdp = SdpSerialize(jdesc); EXPECT_EQ(sdp_string, serialized_sdp); } } TEST_F(WebRtcSdpTest, DeserializeBundleOnlyAttribute) { EXPECT_TRUE(CompareSessionDescription( MakeBundleOnlyDescription(), SdpDeserialize(kBundleOnlySdpFullString))); } // The semantics of "a=bundle-only" are only defined when it's used in // combination with a 0 port on the m= line. We should ignore it if used with a // nonzero port. TEST_F(WebRtcSdpTest, IgnoreBundleOnlyWithNonzeroPort) { // Make the base bundle-only description but unset the bundle-only flag. std::unique_ptr sd = MakeBundleOnlyDescription(); sd->description()->contents()[1].bundle_only = false; std::string modified_sdp = kBundleOnlySdpFullString; Replace("m=video 0", "m=video 9", &modified_sdp); EXPECT_TRUE(CompareSessionDescription(sd, SdpDeserialize(modified_sdp))); } TEST_F(WebRtcSdpTest, SerializeBundleOnlyAttribute) { TestSerialize(MakeBundleOnlyDescription()); } TEST_F(WebRtcSdpTest, DeserializePlanBSessionDescription) { EXPECT_TRUE(CompareSessionDescription(MakePlanBDescription(), SdpDeserialize(kPlanBSdpFullString))); } TEST_F(WebRtcSdpTest, SerializePlanBSessionDescription) { TestSerialize(MakePlanBDescription()); } TEST_F(WebRtcSdpTest, DeserializeUnifiedPlanSessionDescription) { MakeUnifiedPlanDescription(); EXPECT_TRUE(CompareSessionDescription( jdesc_, SdpDeserialize(kUnifiedPlanSdpFullString))); } TEST_F(WebRtcSdpTest, SerializeUnifiedPlanSessionDescription) { MakeUnifiedPlanDescription(); TestSerialize(jdesc_); } // This tests deserializing a Unified Plan SDP that is compatible with both // Unified Plan and Plan B style SDP, meaning that it contains both "a=ssrc // msid" lines and "a=msid " lines. It tests the case for audio/video tracks // with no stream ids and multiple stream ids. For parsing this, the Unified // Plan a=msid lines should take priority, because the Plan B style a=ssrc msid // lines do not support multiple stream ids and no stream ids. TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionSpecialMsid) { // Create both msid lines for Plan B and Unified Plan support. MakeUnifiedPlanDescriptionMultipleStreamIds(kMsidSignalingMediaSection | kMsidSignalingSsrcAttribute | kMsidSignalingSemantic); std::unique_ptr deserialized_description = SdpDeserialize(kUnifiedPlanSdpFullStringWithSpecialMsid); ASSERT_THAT(deserialized_description, NotNull()); EXPECT_TRUE(CompareSessionDescription(jdesc_, deserialized_description)); EXPECT_EQ(kMsidSignalingMediaSection | kMsidSignalingSsrcAttribute | kMsidSignalingSemantic, deserialized_description->description()->msid_signaling()); } // Tests the serialization of a Unified Plan SDP that is compatible for both // Unified Plan and Plan B style SDPs, meaning that it contains both "a=ssrc // msid" lines and "a=msid " lines. It tests the case for no stream ids and // multiple stream ids. TEST_F(WebRtcSdpTest, SerializeSessionDescriptionSpecialMsid) { // Create both msid lines for Plan B and Unified Plan support. MakeUnifiedPlanDescriptionMultipleStreamIds(kMsidSignalingMediaSection | kMsidSignalingSsrcAttribute | kMsidSignalingSemantic); std::string serialized_sdp = SdpSerialize(jdesc_); // We explicitly test that the serialized SDP string is equal to the hard // coded SDP string. This is necessary, because in the parser "a=msid" lines // take priority over "a=ssrc msid" lines. This means if we just used // TestSerialize(), it could serialize an SDP that omits "a=ssrc msid" lines, // and still pass, because the deserialized version would be the same. EXPECT_EQ(kUnifiedPlanSdpFullStringWithSpecialMsid, serialized_sdp); } // Tests that a Unified Plan style SDP (does not contain "a=ssrc msid" lines // that signal stream IDs) is deserialized appropriately. It tests the case for // no stream ids and multiple stream ids. TEST_F(WebRtcSdpTest, UnifiedPlanDeserializeSessionDescriptionSpecialMsid) { // Only create a=msid lines for strictly Unified Plan stream ID support. MakeUnifiedPlanDescriptionMultipleStreamIds(kMsidSignalingMediaSection | kMsidSignalingSemantic); std::string unified_plan_sdp_string = kUnifiedPlanSdpFullStringWithSpecialMsid; RemoveSsrcMsidLinesFromSdpString(&unified_plan_sdp_string); EXPECT_TRUE(CompareSessionDescription( jdesc_, SdpDeserialize(unified_plan_sdp_string))); } // Tests that a Unified Plan style SDP (does not contain "a=ssrc msid" lines // that signal stream IDs) is serialized appropriately. It tests the case for no // stream ids and multiple stream ids. TEST_F(WebRtcSdpTest, UnifiedPlanSerializeSessionDescriptionSpecialMsid) { // Only create a=msid lines for strictly Unified Plan stream ID support. MakeUnifiedPlanDescriptionMultipleStreamIds(kMsidSignalingMediaSection | kMsidSignalingSemantic); TestSerialize(jdesc_); } // This tests that a Unified Plan SDP with no a=ssrc lines is // serialized/deserialized appropriately. In this case the // MediaContentDescription will contain a StreamParams object that doesn't have // any SSRCs. Vice versa, this will be created upon deserializing an SDP with no // SSRC lines. TEST_F(WebRtcSdpTest, DeserializeUnifiedPlanSessionDescriptionNoSsrcSignaling) { MakeUnifiedPlanDescription(); RemoveSsrcSignalingFromStreamParams(); std::string unified_plan_sdp_string = kUnifiedPlanSdpFullString; RemoveSsrcLinesFromSdpString(&unified_plan_sdp_string); EXPECT_TRUE(CompareSessionDescription( jdesc_, SdpDeserialize(unified_plan_sdp_string))); } TEST_F(WebRtcSdpTest, SerializeUnifiedPlanSessionDescriptionNoSsrcSignaling) { MakeUnifiedPlanDescription(); RemoveSsrcSignalingFromStreamParams(); TestSerialize(jdesc_); } TEST_F(WebRtcSdpTest, EmptyDescriptionHasNoMsidSignaling) { std::unique_ptr jsep_desc = SdpDeserialize(kSdpSessionString); ASSERT_THAT(jsep_desc, NotNull()); EXPECT_EQ(kMsidSignalingSemantic, jsep_desc->description()->msid_signaling()); } TEST_F(WebRtcSdpTest, DataChannelOnlyHasNoMsidSignaling) { std::string sdp = kSdpSessionString; sdp += kSdpSctpDataChannelString; std::unique_ptr jsep_desc = SdpDeserialize(sdp); ASSERT_THAT(jsep_desc, NotNull()); EXPECT_EQ(kMsidSignalingSemantic, jsep_desc->description()->msid_signaling()); } TEST_F(WebRtcSdpTest, PlanBHasSsrcAttributeMsidSignaling) { std::unique_ptr jsep_desc = SdpDeserialize(kPlanBSdpFullString); ASSERT_THAT(jsep_desc, NotNull()); EXPECT_EQ(kMsidSignalingSsrcAttribute | kMsidSignalingSemantic, jsep_desc->description()->msid_signaling()); } TEST_F(WebRtcSdpTest, UnifiedPlanHasMediaSectionMsidSignaling) { std::unique_ptr jsep_desc = SdpDeserialize(kUnifiedPlanSdpFullString); ASSERT_THAT(jsep_desc, NotNull()); EXPECT_EQ(kMsidSignalingMediaSection | kMsidSignalingSemantic, jsep_desc->description()->msid_signaling()); } TEST_F(WebRtcSdpTest, SerializeOnlyMediaSectionMsid) { jdesc_->description()->set_msid_signaling(kMsidSignalingMediaSection); std::string sdp = SdpSerialize(jdesc_); EXPECT_NE(std::string::npos, sdp.find(kMediaSectionMsidLine)); EXPECT_EQ(std::string::npos, sdp.find(kSsrcAttributeMsidLine)); } TEST_F(WebRtcSdpTest, SerializeOnlySsrcAttributeMsid) { jdesc_->description()->set_msid_signaling(kMsidSignalingSsrcAttribute); std::string sdp = SdpSerialize(jdesc_); EXPECT_EQ(std::string::npos, sdp.find(kMediaSectionMsidLine)); EXPECT_NE(std::string::npos, sdp.find(kSsrcAttributeMsidLine)); } TEST_F(WebRtcSdpTest, SerializeBothMediaSectionAndSsrcAttributeMsid) { jdesc_->description()->set_msid_signaling(kMsidSignalingMediaSection | kMsidSignalingSsrcAttribute); std::string sdp = SdpSerialize(jdesc_); EXPECT_NE(std::string::npos, sdp.find(kMediaSectionMsidLine)); EXPECT_NE(std::string::npos, sdp.find(kSsrcAttributeMsidLine)); } TEST_F(WebRtcSdpTest, SerializeWithoutMsidSemantics) { jdesc_->description()->set_msid_signaling(kMsidSignalingNotUsed); std::string sdp = SdpSerialize(jdesc_); EXPECT_EQ(std::string::npos, sdp.find("a=msid-semantic:")); } // Regression test for integer overflow bug: // https://bugs.chromium.org/p/chromium/issues/detail?id=648071 TEST_F(WebRtcSdpTest, DeserializeLargeBandwidthLimit) { // Bandwidth attribute is the max signed 32-bit int, which will get // multiplied by 1000 and cause int overflow if not careful. static const char kSdpWithLargeBandwidth[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=video 3457 RTP/SAVPF 120\r\n" "b=AS:2147483647\r\n" "foo=fail\r\n"; ExpectParseFailure(std::string(kSdpWithLargeBandwidth), "foo=fail"); } // Similar to the above, except that negative values are illegal, not just // error-prone as large values are. // https://bugs.chromium.org/p/chromium/issues/detail?id=675361 TEST_F(WebRtcSdpTest, DeserializingNegativeBandwidthLimitFails) { static const char kSdpWithNegativeBandwidth[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=video 3457 RTP/SAVPF 120\r\n" "b=AS:-1000\r\n"; ExpectParseFailure(std::string(kSdpWithNegativeBandwidth), "b=AS:-1000"); } // An exception to the above rule: a value of -1 for b=AS should just be // ignored, resulting in "kAutoBandwidth" in the deserialized object. // Applications historically may be using "b=AS:-1" to mean "no bandwidth // limit", but this is now what ommitting the attribute entirely will do, so // ignoring it will have the intended effect. TEST_F(WebRtcSdpTest, BandwidthLimitOfNegativeOneIgnored) { static const char kSdpWithBandwidthOfNegativeOne[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=video 3457 RTP/SAVPF 120\r\n" "b=AS:-1\r\n"; std::unique_ptr jdesc_output = SdpDeserialize(kSdpWithBandwidthOfNegativeOne); ASSERT_THAT(jdesc_output, NotNull()); const VideoContentDescription* vcd = GetFirstVideoContentDescription(jdesc_output->description()); ASSERT_THAT(vcd, NotNull()); EXPECT_EQ(kAutoBandwidth, vcd->bandwidth()); } TEST_F(WebRtcSdpTest, SdpBandwidthMetrics) { metrics::Reset(); auto get_sdp = [](absl::string_view value) { StringBuilder sb; sb << "v=0\r\n" << "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" << "s=-\r\n" << "t=0 0\r\n" << "m=video 3457 RTP/SAVPF 120\r\n" << "b=AS:" << value << "\r\n"; return sb.Release(); }; // kSdpBandwidthNegativeOne SdpDeserialize(get_sdp("-1")); EXPECT_METRIC_EQ(1, metrics::NumEvents("WebRTC.PeerConnection.SdpBandwidth", kSdpBandwidthNegativeOne)); // kSdpBandwidthZero SdpDeserialize(get_sdp("0")); EXPECT_METRIC_EQ(1, metrics::NumEvents("WebRTC.PeerConnection.SdpBandwidth", kSdpBandwidthZero)); // kSdpBandwidthSmall SdpDeserialize(get_sdp("1000")); EXPECT_METRIC_EQ(1, metrics::NumEvents("WebRTC.PeerConnection.SdpBandwidth", kSdpBandwidthSmall)); // kSdpBandwidthLarge SdpDeserialize(get_sdp("3000000")); EXPECT_METRIC_EQ(1, metrics::NumEvents("WebRTC.PeerConnection.SdpBandwidth", kSdpBandwidthLarge)); // kSdpBandwidthNegative SdpDeserialize(get_sdp("-1000")); EXPECT_METRIC_EQ(1, metrics::NumEvents("WebRTC.PeerConnection.SdpBandwidth", kSdpBandwidthNegative)); // kSdpBandwidthParseFailure SdpDeserialize(get_sdp("999999999999")); EXPECT_METRIC_EQ(1, metrics::NumEvents("WebRTC.PeerConnection.SdpBandwidth", kSdpBandwidthParseFailure)); EXPECT_METRIC_EQ(6, metrics::NumSamples("WebRTC.PeerConnection.SdpBandwidth")); } // Test that "ufrag"/"pwd" in the candidate line itself are ignored, and only // the "a=ice-ufrag"/"a=ice-pwd" attributes are used. // Regression test for: // https://bugs.chromium.org/p/chromium/issues/detail?id=681286 TEST_F(WebRtcSdpTest, IceCredentialsInCandidateStringIgnored) { // Important piece is "ufrag foo pwd bar". static const char kSdpWithIceCredentialsInCandidateString[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " "generation 2 ufrag foo pwd bar\r\n"; std::unique_ptr jdesc_output = SdpDeserialize(kSdpWithIceCredentialsInCandidateString); ASSERT_THAT(jdesc_output, NotNull()); const IceCandidateCollection* candidates = jdesc_output->candidates(0); ASSERT_NE(nullptr, candidates); ASSERT_EQ(1U, candidates->count()); Candidate c = candidates->at(0)->candidate(); EXPECT_EQ("ufrag_voice", c.username()); EXPECT_EQ("pwd_voice", c.password()); } // Test that attribute lines "a=ice-ufrag-something"/"a=ice-pwd-something" are // ignored, and only the "a=ice-ufrag"/"a=ice-pwd" attributes are used. // Regression test for: // https://bugs.chromium.org/p/webrtc/issues/detail?id=9712 TEST_F(WebRtcSdpTest, AttributeWithPartialMatchingNameIsIgnored) { static const char kSdpWithFooIceCredentials[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag-something:foo\r\na=ice-pwd-something:bar\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 1234 typ host " "generation 2\r\n"; std::unique_ptr jdesc_output = SdpDeserialize(kSdpWithFooIceCredentials); ASSERT_THAT(jdesc_output, NotNull()); const IceCandidateCollection* candidates = jdesc_output->candidates(0); ASSERT_NE(nullptr, candidates); ASSERT_EQ(1U, candidates->count()); Candidate c = candidates->at(0)->candidate(); EXPECT_EQ("ufrag_voice", c.username()); EXPECT_EQ("pwd_voice", c.password()); } // Test that SDP with an invalid port number in "a=candidate" lines is // rejected, without crashing. // Regression test for: // https://bugs.chromium.org/p/chromium/issues/detail?id=677029 TEST_F(WebRtcSdpTest, DeserializeInvalidPortInCandidateAttribute) { static const char kSdpWithInvalidCandidatePort[] = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp:9 IN IP4 0.0.0.0\r\n" "a=ice-ufrag:ufrag_voice\r\na=ice-pwd:pwd_voice\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=candidate:a0+B/1 1 udp 2130706432 192.168.1.5 12345678 typ host " "generation 2 raddr 192.168.1.1 rport 87654321\r\n"; EXPECT_THAT(SdpDeserialize(kSdpWithInvalidCandidatePort), IsNull()); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithStreamIdAndTrackId) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id track_id\r\n"; std::unique_ptr jdesc_output = SdpDeserialize(sdp); auto stream = jdesc_output->description() ->contents()[0] .media_description() ->streams()[0]; ASSERT_EQ(stream.stream_ids().size(), 1u); EXPECT_EQ(stream.stream_ids()[0], "stream_id"); EXPECT_EQ(stream.id, "track_id"); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithEmptyStreamIdAndTrackId) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:- track_id\r\n"; std::unique_ptr jdesc_output = SdpDeserialize(sdp); ASSERT_THAT(jdesc_output, NotNull()); auto stream = jdesc_output->description() ->contents()[0] .media_description() ->streams()[0]; ASSERT_EQ(stream.stream_ids().size(), 0u); EXPECT_EQ(stream.id, "track_id"); } // Test that "a=msid" with a missing track ID is rejected and doesn't crash. // Regression test for: // https://bugs.chromium.org/p/chromium/issues/detail?id=686405 TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithMissingTrackId) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id \r\n"; EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutColon) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid\r\n"; EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAttributes) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:\r\n"; EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithTooManySpaces) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id track_id bogus\r\n"; EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithDifferentTrackIds) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id track_id\r\n" "a=msid:stream_id2 track_id2\r\n"; EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppData) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id\r\n"; std::unique_ptr jdesc_output = SdpDeserialize(sdp); ASSERT_THAT(jdesc_output, NotNull()); auto stream = jdesc_output->description() ->contents()[0] .media_description() ->streams()[0]; ASSERT_EQ(stream.stream_ids().size(), 1u); EXPECT_EQ(stream.stream_ids()[0], "stream_id"); // Track id is randomly generated. EXPECT_NE(stream.id, ""); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppDataTwoStreams) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id\r\n" "a=msid:stream_id2\r\n"; std::unique_ptr jdesc_output = SdpDeserialize(sdp); ASSERT_THAT(jdesc_output, NotNull()); auto stream = jdesc_output->description() ->contents()[0] .media_description() ->streams()[0]; ASSERT_EQ(stream.stream_ids().size(), 2u); EXPECT_EQ(stream.stream_ids()[0], "stream_id"); EXPECT_EQ(stream.stream_ids()[1], "stream_id2"); // Track id is randomly generated. EXPECT_NE(stream.id, ""); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppDataDuplicate) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id\r\n" "a=msid:stream_id\r\n"; // This is somewhat silly but accept it. Duplicates get filtered. std::unique_ptr jdesc_output = SdpDeserialize(sdp); ASSERT_THAT(jdesc_output, NotNull()); auto stream = jdesc_output->description() ->contents()[0] .media_description() ->streams()[0]; ASSERT_EQ(stream.stream_ids().size(), 1u); EXPECT_EQ(stream.stream_ids()[0], "stream_id"); // Track id is randomly generated. EXPECT_NE(stream.id, ""); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppDataMixed) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id\r\n" "a=msid:stream_id2 track_id\r\n"; // Mixing the syntax like this is not a good idea but we accept it // and the result is the second track_id. std::unique_ptr jdesc_output = SdpDeserialize(sdp); ASSERT_THAT(jdesc_output, NotNull()); auto stream = jdesc_output->description() ->contents()[0] .media_description() ->streams()[0]; ASSERT_EQ(stream.stream_ids().size(), 2u); EXPECT_EQ(stream.stream_ids()[0], "stream_id"); EXPECT_EQ(stream.stream_ids()[1], "stream_id2"); // Track id is taken from second line. EXPECT_EQ(stream.id, "track_id"); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppDataMixed2) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id track_id\r\n" "a=msid:stream_id2\r\n"; // Mixing the syntax like this is not a good idea but we accept it // and the result is the second track_id. std::unique_ptr jdesc_output = SdpDeserialize(sdp); ASSERT_THAT(jdesc_output, NotNull()); auto stream = jdesc_output->description() ->contents()[0] .media_description() ->streams()[0]; ASSERT_EQ(stream.stream_ids().size(), 2u); EXPECT_EQ(stream.stream_ids()[0], "stream_id"); EXPECT_EQ(stream.stream_ids()[1], "stream_id2"); // Track id is taken from first line. EXPECT_EQ(stream.id, "track_id"); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithoutAppDataMixedNoStream) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id\r\n" "a=msid:- track_id\r\n"; // This is somewhat undefined behavior but accept it and expect a single // stream. std::unique_ptr jdesc_output = SdpDeserialize(sdp); ASSERT_THAT(jdesc_output, NotNull()); auto stream = jdesc_output->description() ->contents()[0] .media_description() ->streams()[0]; ASSERT_EQ(stream.stream_ids().size(), 1u); EXPECT_EQ(stream.stream_ids()[0], "stream_id"); EXPECT_EQ(stream.id, "track_id"); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithMissingStreamId) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid: track_id\r\n"; EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } TEST_F(WebRtcSdpTest, DeserializeMsidAttributeWithDuplicateStreamIdAndTrackId) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "a=mid:0\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id track_id\r\n" "m=audio 9 RTP/SAVPF 111\r\n" "a=mid:1\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtpmap:111 opus/48000/2\r\n" "a=msid:stream_id track_id\r\n"; EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } // Tests that if both session-level address and media-level address exist, use // the media-level address. TEST_F(WebRtcSdpTest, ParseConnectionData) { // Sesssion-level address. std::string sdp = kSdpFullString; InjectAfter("s=-\r\n", "c=IN IP4 192.168.0.3\r\n", &sdp); std::unique_ptr jsep_desc = SdpDeserialize(sdp); ASSERT_THAT(jsep_desc, NotNull()); const auto& content1 = jsep_desc->description()->contents()[0]; EXPECT_EQ("74.125.127.126:2345", content1.media_description()->connection_address().ToString()); const auto& content2 = jsep_desc->description()->contents()[1]; EXPECT_EQ("74.125.224.39:3457", content2.media_description()->connection_address().ToString()); } // Tests that the session-level connection address will be used if the media // level-addresses are not specified. TEST_F(WebRtcSdpTest, ParseConnectionDataSessionLevelOnly) { // Sesssion-level address. std::string sdp = kSdpString; InjectAfter("s=-\r\n", "c=IN IP4 192.168.0.3\r\n", &sdp); // Remove the media level addresses. Replace("c=IN IP4 0.0.0.0\r\n", "", &sdp); Replace("c=IN IP4 0.0.0.0\r\n", "", &sdp); std::unique_ptr jsep_desc = SdpDeserialize(sdp); ASSERT_THAT(jsep_desc, NotNull()); const auto& content1 = jsep_desc->description()->contents()[0]; EXPECT_EQ("192.168.0.3:9", content1.media_description()->connection_address().ToString()); const auto& content2 = jsep_desc->description()->contents()[1]; EXPECT_EQ("192.168.0.3:9", content2.media_description()->connection_address().ToString()); } TEST_F(WebRtcSdpTest, ParseConnectionDataIPv6) { std::string sdp = kSdpString; Replace("m=audio 9 RTP/SAVPF 111 103 104\r\nc=IN IP4 0.0.0.0\r\n", "m=audio 9 RTP/SAVPF 111 103 104\r\nc=IN IP6 " "2001:0db8:85a3:0000:0000:8a2e:0370:7335\r\n", &sdp); Replace("m=video 9 RTP/SAVPF 120\r\nc=IN IP4 0.0.0.0\r\n", "m=video 9 RTP/SAVPF 120\r\nc=IN IP6 " "2001:0db8:85a3:0000:0000:8a2e:0370:7336\r\n", &sdp); std::unique_ptr jsep_desc = SdpDeserialize(sdp); ASSERT_THAT(jsep_desc, NotNull()); const auto& content1 = jsep_desc->description()->contents()[0]; EXPECT_EQ("[2001:db8:85a3::8a2e:370:7335]:9", content1.media_description()->connection_address().ToString()); const auto& content2 = jsep_desc->description()->contents()[1]; EXPECT_EQ("[2001:db8:85a3::8a2e:370:7336]:9", content2.media_description()->connection_address().ToString()); } // Test that a c= line that contains a hostname connection address can be // parsed. TEST_F(WebRtcSdpTest, ParseConnectionDataWithHostnameConnectionAddress) { std::string sdp = kSdpString; Replace("c=IN IP4 0.0.0.0\r\n", "c=IN IP4 example.local\r\n", &sdp); Replace("c=IN IP4 0.0.0.0\r\n", "c=IN IP4 example.local\r\n", &sdp); std::unique_ptr jsep_desc = SdpDeserialize(sdp); ASSERT_THAT(jsep_desc, NotNull()); ASSERT_NE(nullptr, jsep_desc->description()); const auto& content1 = jsep_desc->description()->contents()[0]; EXPECT_EQ("example.local:9", content1.media_description()->connection_address().ToString()); const auto& content2 = jsep_desc->description()->contents()[1]; EXPECT_EQ("example.local:9", content2.media_description()->connection_address().ToString()); } // Test that the invalid or unsupported connection data cannot be parsed. TEST_F(WebRtcSdpTest, ParseConnectionDataFailure) { std::string sdp = kSdpString; EXPECT_THAT(SdpDeserialize(sdp), NotNull()); // Unsupported multicast IPv4 address. sdp = kSdpFullString; Replace("c=IN IP4 74.125.224.39\r\n", "c=IN IP4 74.125.224.39/127\r\n", &sdp); EXPECT_THAT(SdpDeserialize(sdp), IsNull()); // Unsupported multicast IPv6 address. sdp = kSdpFullString; Replace("c=IN IP4 74.125.224.39\r\n", "c=IN IP6 ::1/3\r\n", &sdp); EXPECT_THAT(SdpDeserialize(sdp), IsNull()); // Mismatched address type. sdp = kSdpFullString; Replace("c=IN IP4 74.125.224.39\r\n", "c=IN IP6 74.125.224.39\r\n", &sdp); EXPECT_THAT(SdpDeserialize(sdp), IsNull()); sdp = kSdpFullString; Replace("c=IN IP4 74.125.224.39\r\n", "c=IN IP4 2001:0db8:85a3:0000:0000:8a2e:0370:7334\r\n", &sdp); EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } TEST_F(WebRtcSdpTest, SerializeAndDeserializeWithConnectionAddress) { // Serialization. std::string message = SdpSerialize(MakeDescriptionWithoutCandidates()); // Deserialization. std::unique_ptr jdesc = SdpDeserialize(message); ASSERT_THAT(jdesc, NotNull()); auto audio_desc = jdesc->description() ->GetContentByName(kAudioContentName) ->media_description(); auto video_desc = jdesc->description() ->GetContentByName(kVideoContentName) ->media_description(); EXPECT_EQ(audio_desc_->connection_address().ToString(), audio_desc->connection_address().ToString()); EXPECT_EQ(video_desc_->connection_address().ToString(), video_desc->connection_address().ToString()); } // RFC4566 says "If a session has no meaningful name, the value "s= " SHOULD be // used (i.e., a single space as the session name)." So we should accept that. TEST_F(WebRtcSdpTest, DeserializeEmptySessionName) { std::string sdp = kSdpString; Replace("s=-\r\n", "s= \r\n", &sdp); EXPECT_THAT(SdpDeserialize(sdp), NotNull()); } // Simulcast malformed input test for invalid format. TEST_F(WebRtcSdpTest, DeserializeSimulcastNegative_EmptyAttribute) { ExpectParseFailureWithNewLines("a=ssrc:3 cname:stream_1_cname\r\n", "a=simulcast:\r\n", "a=simulcast:"); } // Tests that duplicate simulcast entries in the SDP triggers a parse failure. TEST_F(WebRtcSdpTest, DeserializeSimulcastNegative_DuplicateAttribute) { ExpectParseFailureWithNewLines("a=ssrc:3 cname:stream_1_cname\r\n", "a=simulcast:send 1\r\na=simulcast:recv 2\r\n", "a=simulcast:"); } // Validates that deserialization uses the a=simulcast: attribute TEST_F(WebRtcSdpTest, TestDeserializeSimulcastAttribute) { std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; sdp += "a=rid:1 send\r\n"; sdp += "a=rid:2 send\r\n"; sdp += "a=rid:3 send\r\n"; sdp += "a=rid:4 recv\r\n"; sdp += "a=rid:5 recv\r\n"; sdp += "a=rid:6 recv\r\n"; sdp += "a=simulcast:send 1,2;3 recv 4;5;6\r\n"; std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); const ContentInfos& contents = output->description()->contents(); const MediaContentDescription* media = contents.back().media_description(); EXPECT_TRUE(media->HasSimulcast()); EXPECT_EQ(2ul, media->simulcast_description().send_layers().size()); EXPECT_EQ(3ul, media->simulcast_description().receive_layers().size()); EXPECT_FALSE(media->streams().empty()); const std::vector& rids = media->streams()[0].rids(); CompareRidDescriptionIds(rids, {"1", "2", "3"}); } // Validates that deserialization removes rids that do not appear in SDP TEST_F(WebRtcSdpTest, TestDeserializeSimulcastAttributeRemovesUnknownRids) { std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; sdp += "a=rid:1 send\r\n"; sdp += "a=rid:3 send\r\n"; sdp += "a=rid:4 recv\r\n"; sdp += "a=simulcast:send 1,2;3 recv 4;5,6\r\n"; std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); const ContentInfos& contents = output->description()->contents(); const MediaContentDescription* media = contents.back().media_description(); EXPECT_TRUE(media->HasSimulcast()); const SimulcastDescription& simulcast = media->simulcast_description(); EXPECT_EQ(2ul, simulcast.send_layers().size()); EXPECT_EQ(1ul, simulcast.receive_layers().size()); std::vector all_send_layers = simulcast.send_layers().GetAllLayers(); EXPECT_EQ(2ul, all_send_layers.size()); EXPECT_EQ(0, absl::c_count_if(all_send_layers, [](const SimulcastLayer& layer) { return layer.rid == "2"; })); std::vector all_receive_layers = simulcast.receive_layers().GetAllLayers(); ASSERT_EQ(1ul, all_receive_layers.size()); EXPECT_EQ("4", all_receive_layers[0].rid); EXPECT_FALSE(media->streams().empty()); const std::vector& rids = media->streams()[0].rids(); CompareRidDescriptionIds(rids, {"1", "3"}); } // Validates that Simulcast removes rids that appear in both send and receive. TEST_F(WebRtcSdpTest, TestDeserializeSimulcastAttributeRemovesDuplicateSendReceive) { std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; sdp += "a=rid:1 send\r\n"; sdp += "a=rid:2 send\r\n"; sdp += "a=rid:3 send\r\n"; sdp += "a=rid:4 recv\r\n"; sdp += "a=simulcast:send 1;2;3 recv 2;4\r\n"; std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); const ContentInfos& contents = output->description()->contents(); const MediaContentDescription* media = contents.back().media_description(); EXPECT_TRUE(media->HasSimulcast()); const SimulcastDescription& simulcast = media->simulcast_description(); EXPECT_EQ(2ul, simulcast.send_layers().size()); EXPECT_EQ(1ul, simulcast.receive_layers().size()); EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size()); EXPECT_EQ(1ul, simulcast.receive_layers().GetAllLayers().size()); EXPECT_FALSE(media->streams().empty()); const std::vector& rids = media->streams()[0].rids(); CompareRidDescriptionIds(rids, {"1", "3"}); } // Ignores empty rid line. TEST_F(WebRtcSdpTest, TestDeserializeIgnoresEmptyRidLines) { std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; sdp += "a=rid:1 send\r\n"; sdp += "a=rid:2 send\r\n"; sdp += "a=rid\r\n"; // Should ignore this line. sdp += "a=rid:\r\n"; // Should ignore this line. sdp += "a=simulcast:send 1;2\r\n"; std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); const ContentInfos& contents = output->description()->contents(); const MediaContentDescription* media = contents.back().media_description(); EXPECT_TRUE(media->HasSimulcast()); const SimulcastDescription& simulcast = media->simulcast_description(); EXPECT_TRUE(simulcast.receive_layers().empty()); EXPECT_EQ(2ul, simulcast.send_layers().size()); EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size()); EXPECT_FALSE(media->streams().empty()); const std::vector& rids = media->streams()[0].rids(); CompareRidDescriptionIds(rids, {"1", "2"}); } // Ignores malformed rid lines. TEST_F(WebRtcSdpTest, TestDeserializeIgnoresMalformedRidLines) { std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; sdp += "a=rid:1 send pt=\r\n"; // Should ignore this line. sdp += "a=rid:2 receive\r\n"; // Should ignore this line. sdp += "a=rid:3 max-width=720;pt=120\r\n"; // Should ignore this line. sdp += "a=rid:4\r\n"; // Should ignore this line. sdp += "a=rid:5 send\r\n"; sdp += "a=simulcast:send 1,2,3;4,5\r\n"; std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); const ContentInfos& contents = output->description()->contents(); const MediaContentDescription* media = contents.back().media_description(); EXPECT_TRUE(media->HasSimulcast()); const SimulcastDescription& simulcast = media->simulcast_description(); EXPECT_TRUE(simulcast.receive_layers().empty()); EXPECT_EQ(1ul, simulcast.send_layers().size()); EXPECT_EQ(1ul, simulcast.send_layers().GetAllLayers().size()); EXPECT_FALSE(media->streams().empty()); const std::vector& rids = media->streams()[0].rids(); CompareRidDescriptionIds(rids, {"5"}); } // Ignores codecs from RIDs where the PTs are missing from the m= section. TEST_F(WebRtcSdpTest, TestDeserializeIgnoresInvalidPayloadTypesInRid) { std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; sdp += "a=rid:1 send pt=121,120\r\n"; // Should remove 121 and keep 120. sdp += "a=rid:2 send pt=121\r\n"; // Should remove 121. sdp += "a=simulcast:send 1;2\r\n"; std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); const ContentInfos& contents = output->description()->contents(); const MediaContentDescription* media = contents.back().media_description(); EXPECT_TRUE(media->HasSimulcast()); const SimulcastDescription& simulcast = media->simulcast_description(); EXPECT_TRUE(simulcast.receive_layers().empty()); EXPECT_EQ(2ul, simulcast.send_layers().size()); EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size()); EXPECT_EQ("1", simulcast.send_layers()[0][0].rid); EXPECT_EQ(1ul, media->streams().size()); const std::vector& rids = media->streams()[0].rids(); EXPECT_EQ(2ul, rids.size()); EXPECT_EQ("1", rids[0].rid); EXPECT_EQ(1ul, rids[0].codecs.size()); EXPECT_EQ(120, rids[0].codecs[0].id); EXPECT_EQ("2", rids[1].rid); EXPECT_EQ(0ul, rids[1].codecs.size()); } // Ignores duplicate rid lines TEST_F(WebRtcSdpTest, TestDeserializeIgnoresDuplicateRidLines) { std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; sdp += "a=rid:1 send\r\n"; sdp += "a=rid:2 send\r\n"; sdp += "a=rid:2 send\r\n"; sdp += "a=rid:3 send\r\n"; sdp += "a=rid:4 recv\r\n"; sdp += "a=simulcast:send 1,2;3 recv 4\r\n"; std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); const ContentInfos& contents = output->description()->contents(); const MediaContentDescription* media = contents.back().media_description(); EXPECT_TRUE(media->HasSimulcast()); const SimulcastDescription& simulcast = media->simulcast_description(); EXPECT_EQ(2ul, simulcast.send_layers().size()); EXPECT_EQ(1ul, simulcast.receive_layers().size()); EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size()); EXPECT_EQ(1ul, simulcast.receive_layers().GetAllLayers().size()); EXPECT_FALSE(media->streams().empty()); const std::vector& rids = media->streams()[0].rids(); CompareRidDescriptionIds(rids, {"1", "3"}); } TEST_F(WebRtcSdpTest, TestDeserializeRidSendDirection) { std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; sdp += "a=rid:1 recv\r\n"; sdp += "a=rid:2 recv\r\n"; sdp += "a=simulcast:send 1;2\r\n"; std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); const ContentInfos& contents = output->description()->contents(); const MediaContentDescription* media = contents.back().media_description(); EXPECT_FALSE(media->HasSimulcast()); } TEST_F(WebRtcSdpTest, TestDeserializeRidRecvDirection) { std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; sdp += "a=rid:1 send\r\n"; sdp += "a=rid:2 send\r\n"; sdp += "a=simulcast:recv 1;2\r\n"; std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); const ContentInfos& contents = output->description()->contents(); const MediaContentDescription* media = contents.back().media_description(); EXPECT_FALSE(media->HasSimulcast()); } TEST_F(WebRtcSdpTest, TestDeserializeIgnoresWrongRidDirectionLines) { std::string sdp = kUnifiedPlanSdpFullStringNoSsrc; sdp += "a=rid:1 send\r\n"; sdp += "a=rid:2 send\r\n"; sdp += "a=rid:3 send\r\n"; sdp += "a=rid:4 recv\r\n"; sdp += "a=rid:5 recv\r\n"; sdp += "a=rid:6 recv\r\n"; sdp += "a=simulcast:send 1;5;3 recv 4;2;6\r\n"; std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); const ContentInfos& contents = output->description()->contents(); const MediaContentDescription* media = contents.back().media_description(); EXPECT_TRUE(media->HasSimulcast()); const SimulcastDescription& simulcast = media->simulcast_description(); EXPECT_EQ(2ul, simulcast.send_layers().size()); EXPECT_EQ(2ul, simulcast.receive_layers().size()); EXPECT_EQ(2ul, simulcast.send_layers().GetAllLayers().size()); EXPECT_EQ(2ul, simulcast.receive_layers().GetAllLayers().size()); EXPECT_FALSE(media->streams().empty()); const std::vector& rids = media->streams()[0].rids(); CompareRidDescriptionIds(rids, {"1", "3"}); } // Simulcast serialization integration test. // This test will serialize and deserialize the description and compare. // More detailed tests for parsing simulcast can be found in // unit tests for SdpSerializer. TEST_F(WebRtcSdpTest, SerializeSimulcast_ComplexSerialization) { MakeUnifiedPlanDescription(/* use_ssrcs = */ false); auto description = jdesc_->description(); auto media = description->GetContentDescriptionByName(kVideoContentName3); ASSERT_EQ(media->streams().size(), 1ul); StreamParams& send_stream = media->mutable_streams()[0]; std::vector send_rids; send_rids.push_back(RidDescription("1", RidDirection::kSend)); send_rids.push_back(RidDescription("2", RidDirection::kSend)); send_rids.push_back(RidDescription("3", RidDirection::kSend)); send_rids.push_back(RidDescription("4", RidDirection::kSend)); send_stream.set_rids(send_rids); std::vector receive_rids; receive_rids.push_back(RidDescription("5", RidDirection::kReceive)); receive_rids.push_back(RidDescription("6", RidDirection::kReceive)); receive_rids.push_back(RidDescription("7", RidDirection::kReceive)); media->set_receive_rids(receive_rids); SimulcastDescription& simulcast = media->simulcast_description(); simulcast.send_layers().AddLayerWithAlternatives( {SimulcastLayer("2", false), SimulcastLayer("1", true)}); simulcast.send_layers().AddLayerWithAlternatives( {SimulcastLayer("4", false), SimulcastLayer("3", false)}); simulcast.receive_layers().AddLayer({SimulcastLayer("5", false)}); simulcast.receive_layers().AddLayer({SimulcastLayer("6", false)}); simulcast.receive_layers().AddLayer({SimulcastLayer("7", false)}); TestSerialize(jdesc_); } // Test that the content name is empty if the media section does not have an // a=mid line. TEST_F(WebRtcSdpTest, ParseNoMid) { std::string sdp = kSdpString; Replace("a=mid:audio_content_name\r\n", "", &sdp); Replace("a=mid:video_content_name\r\n", "", &sdp); std::unique_ptr output = SdpDeserialize(sdp); ASSERT_THAT(output, NotNull()); EXPECT_THAT(output->description()->contents(), ElementsAre(Property("name", &ContentInfo::mid, ""), Property("name", &ContentInfo::mid, ""))); } TEST_F(WebRtcSdpTest, SerializeWithDefaultSctpProtocol) { AddSctpDataChannel(false); // Don't use sctpmap std::string message = SdpSerialize(MakeDescriptionWithoutCandidates()); EXPECT_NE(std::string::npos, message.find(kMediaProtocolUdpDtlsSctp)); } TEST_F(WebRtcSdpTest, DeserializeWithAllSctpProtocols) { AddSctpDataChannel(false); std::string protocols[] = {kMediaProtocolDtlsSctp, kMediaProtocolUdpDtlsSctp, kMediaProtocolTcpDtlsSctp}; for (const auto& protocol : protocols) { sctp_desc_->set_protocol(protocol); std::string message = SdpSerialize(MakeDescriptionWithoutCandidates()); EXPECT_NE(std::string::npos, message.find(protocol)); SdpParseError error; EXPECT_THAT(SdpDeserialize(message, &error), NotNull()); } } // According to https://tools.ietf.org/html/rfc5576#section-6.1, the CNAME // attribute is mandatory, but we relax that restriction. TEST_F(WebRtcSdpTest, DeserializeSessionDescriptionWithoutCname) { std::string sdp_without_cname = kSdpFullString; Replace("a=ssrc:1 cname:stream_1_cname\r\n", "", &sdp_without_cname); std::unique_ptr new_jdesc = SdpDeserialize(sdp_without_cname); ASSERT_THAT(new_jdesc, NotNull()); audio_desc_->mutable_streams()[0].cname = ""; audio_desc_->mutable_streams()[0].ssrcs = {}; EXPECT_TRUE(MatchesCurrentDescription(new_jdesc)); } TEST_F(WebRtcSdpTest, DeserializeSdpWithUnrecognizedApplicationProtocolRejectsSection) { const char* unsupported_application_protocols[] = { "bogus/RTP/", "RTP/SAVPF", "DTLS/SCTP/RTP/", "DTLS/SCTPRTP/", "obviously-bogus", "UDP/TL/RTSP/SAVPF", "UDP/TL/RTSP/S"}; for (auto proto : unsupported_application_protocols) { std::string sdp = kSdpSessionString; sdp.append("m=application 9 "); sdp.append(proto); sdp.append(" 101\r\n"); std::unique_ptr jdesc_output = SdpDeserialize(sdp); ASSERT_THAT(jdesc_output, NotNull()); // Make sure we actually parsed a single media section ASSERT_EQ(1u, jdesc_output->description()->contents().size()); // Content is not getting parsed as sctp but instead unsupported. EXPECT_EQ(nullptr, jdesc_output->description() ->contents()[0] .media_description() ->as_sctp()); EXPECT_NE(nullptr, jdesc_output->description() ->contents()[0] .media_description() ->as_unsupported()); // Reject the content EXPECT_TRUE(jdesc_output->description()->contents()[0].rejected); } } TEST_F(WebRtcSdpTest, DeserializeSdpWithUnsupportedMediaType) { std::string sdp = kSdpSessionString; sdp += "m=bogus 9 RTP/SAVPF 0 8\r\n" "c=IN IP4 0.0.0.0\r\n" "a=mid:bogusmid\r\n"; sdp += "m=audio/something 9 RTP/SAVPF 0 8\r\n" "c=IN IP4 0.0.0.0\r\n" "a=mid:somethingmid\r\n"; std::unique_ptr jdesc_output = SdpDeserialize(sdp); ASSERT_THAT(jdesc_output, NotNull()); ASSERT_EQ(2u, jdesc_output->description()->contents().size()); ASSERT_NE(nullptr, jdesc_output->description() ->contents()[0] .media_description() ->as_unsupported()); ASSERT_NE(nullptr, jdesc_output->description() ->contents()[1] .media_description() ->as_unsupported()); EXPECT_TRUE(jdesc_output->description()->contents()[0].rejected); EXPECT_TRUE(jdesc_output->description()->contents()[1].rejected); EXPECT_EQ(jdesc_output->description()->contents()[0].mid(), "bogusmid"); EXPECT_EQ(jdesc_output->description()->contents()[1].mid(), "somethingmid"); } TEST_F(WebRtcSdpTest, MediaTypeProtocolMismatch) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n"; ExpectParseFailure(std::string(sdp + "m=audio 9 UDP/DTLS/SCTP 120\r\n"), "m=audio"); ExpectParseFailure(std::string(sdp + "m=video 9 UDP/DTLS/SCTP 120\r\n"), "m=video"); ExpectParseFailure(std::string(sdp + "m=video 9 SOMETHING 120\r\n"), "m=video"); } // Regression test for: // https://bugs.chromium.org/p/chromium/issues/detail?id=1171965 TEST_F(WebRtcSdpTest, SctpPortInUnsupportedContent) { std::string sdp = "v=0\r\n" "o=- 18446744069414584320 18446462598732840960 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=o 1 DTLS/SCTP 5000\r\n" "a=sctp-port\r\n"; EXPECT_THAT(SdpDeserialize(sdp), NotNull()); } TEST_F(WebRtcSdpTest, IllegalMidCharacterValue) { std::string sdp = kSdpString; // [ is an illegal token value. Replace("a=mid:", "a=mid:[]", &sdp); ExpectParseFailure(std::string(sdp), "a=mid:[]"); } TEST_F(WebRtcSdpTest, MaxChannels) { std::string sdp = "v=0\r\n" "o=- 11 22 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 49232 RTP/AVP 108\r\n" "a=rtpmap:108 ISAC/16000/512\r\n"; ExpectParseFailure(sdp, "a=rtpmap:108 ISAC/16000/512"); } TEST_F(WebRtcSdpTest, DuplicateAudioRtpmapWithConflict) { std::string sdp = "v=0\r\n" "o=- 11 22 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 49232 RTP/AVP 108\r\n" "a=rtpmap:108 ISAC/16000\r\n" "a=rtpmap:108 G711/16000\r\n"; ExpectParseFailure(sdp, "a=rtpmap:108 G711/16000"); } TEST_F(WebRtcSdpTest, DuplicateVideoRtpmapWithConflict) { std::string sdp = "v=0\r\n" "o=- 11 22 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=video 49232 RTP/AVP 108\r\n" "a=rtpmap:108 VP8/90000\r\n" "a=rtpmap:108 VP9/90000\r\n"; ExpectParseFailure(sdp, "a=rtpmap:108 VP9/90000"); } TEST_F(WebRtcSdpTest, FmtpBeforeRtpMap) { std::string sdp = "v=0\r\n" "o=- 11 22 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=video 49232 RTP/AVP 108\r\n" "a=fmtp:108 profile-level=1\r\n" "a=rtpmap:108 VP9/90000\r\n"; EXPECT_THAT(SdpDeserialize(sdp), NotNull()); } TEST_F(WebRtcSdpTest, StaticallyAssignedPayloadTypeWithDifferentCasing) { std::string sdp = "v=0\r\n" "o=- 11 22 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "m=audio 49232 RTP/AVP 18\r\n" // Casing differs from statically assigned type, this should // still be accepted. "a=rtpmap:18 g729/8000\r\n"; EXPECT_THAT(SdpDeserialize(sdp), NotNull()); } // This tests parsing of SDP with unknown ssrc-specific attributes. TEST_F(WebRtcSdpTest, ParseIgnoreUnknownSsrcSpecificAttribute) { std::string sdp = kSdpString; sdp += "a=ssrc:1 mslabel:something\r\n"; ASSERT_THAT(SdpDeserialize(sdp), NotNull()); } TEST_F(WebRtcSdpTest, ParseSessionLevelExtmapAttributes) { std::string sdp = "v=0\r\n" "o=- 0 3 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=group:BUNDLE 0\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=setup:actpass\r\n" "a=ice-ufrag:ETEn\r\n" "a=ice-pwd:OtSK0WpNtpUjkY4+86js7Z/l\r\n" "a=extmap:3 " "http://www.ietf.org/id/" "draft-holmer-rmcat-transport-wide-cc-extensions-01\r\n" "m=audio 9 UDP/TLS/RTP/SAVPF 111\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp-mux\r\n" "a=sendonly\r\n" "a=mid:0\r\n" "a=rtpmap:111 opus/48000/2\r\n"; std::unique_ptr jdesc = SdpDeserialize(sdp); ASSERT_THAT(jdesc, NotNull()); ASSERT_EQ(1u, jdesc->description()->contents().size()); const auto content = jdesc->description()->contents()[0]; const auto* audio_description = content.media_description(); ASSERT_NE(audio_description, nullptr); const auto& extensions = audio_description->rtp_header_extensions(); ASSERT_EQ(1u, extensions.size()); EXPECT_EQ(extensions[0].uri, "http://www.ietf.org/id/" "draft-holmer-rmcat-transport-wide-cc-extensions-01"); EXPECT_EQ(extensions[0].id, RtpHeaderExtensionId(3)); } TEST_F(WebRtcSdpTest, RejectSessionLevelMediaLevelExtmapMixedUsage) { std::string sdp = "v=0\r\n" "o=- 0 3 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=group:BUNDLE 0\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=setup:actpass\r\n" "a=ice-ufrag:ETEn\r\n" "a=ice-pwd:OtSK0WpNtpUjkY4+86js7Z/l\r\n" "a=extmap:3 " "http://www.ietf.org/id/" "draft-holmer-rmcat-transport-wide-cc-extensions-01\r\n" "m=audio 9 UDP/TLS/RTP/SAVPF 111\r\n" "a=extmap:2 " "http://www.webrtc.org/experiments/rtp-hdrext/abs-send-time\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp-mux\r\n" "a=sendonly\r\n" "a=mid:0\r\n" "a=rtpmap:111 opus/48000/2\r\n"; EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } TEST_F(WebRtcSdpTest, RejectDuplicateSsrcInSsrcGroup) { std::string sdp = "v=0\r\n" "o=- 0 3 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=group:BUNDLE 0\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=setup:actpass\r\n" "a=ice-ufrag:ETEn\r\n" "a=ice-pwd:OtSK0WpNtpUjkY4+86js7Z/l\r\n" "m=video 9 UDP/TLS/RTP/SAVPF 96 97\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp-mux\r\n" "a=sendonly\r\n" "a=mid:0\r\n" "a=rtpmap:96 VP8/90000\r\n" "a=rtpmap:97 rtx/90000\r\n" "a=fmtp:97 apt=96\r\n" "a=ssrc-group:FID 1234 1234\r\n" "a=ssrc:1234 cname:test\r\n"; EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } TEST_F(WebRtcSdpTest, ExpectsTLineBeforeAttributeLine) { // https://www.rfc-editor.org/rfc/rfc4566#page-9 // says a= attributes must come last. std::string sdp = "v=0\r\n" "o=- 0 3 IN IP4 127.0.0.1\r\n" "s=-\r\n" "a=thisisnottherightplace\r\n" "t=0 0\r\n"; EXPECT_THAT(SdpDeserialize(sdp), IsNull()); } TEST_F(WebRtcSdpTest, IgnoresUnknownAttributeLines) { std::string sdp = "v=0\r\n" "o=- 0 3 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=somethingthatisnotunderstood\r\n"; EXPECT_THAT(SdpDeserialize(sdp), NotNull()); } TEST_F(WebRtcSdpTest, BackfillsDefaultFmtpValues) { std::string sdp = "v=0\r\n" "o=- 0 3 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=group:BUNDLE 0\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=setup:actpass\r\n" "a=ice-ufrag:ETEn\r\n" "a=ice-pwd:OtSK0WpNtpUjkY4+86js7Z/l\r\n" "m=video 9 UDP/TLS/RTP/SAVPF 96 97 98 99\r\n" "c=IN IP4 0.0.0.0\r\n" "a=rtcp-mux\r\n" "a=sendonly\r\n" "a=mid:0\r\n" "a=rtpmap:96 H264/90000\r\n" "a=rtpmap:97 VP9/90000\r\n" "a=rtpmap:98 AV1/90000\r\n" "a=rtpmap:99 H265/90000\r\n" "a=ssrc:1234 cname:test\r\n"; std::unique_ptr jdesc = SdpDeserialize(sdp); ASSERT_THAT(jdesc, NotNull()); ASSERT_EQ(1u, jdesc->description()->contents().size()); const auto content = jdesc->description()->contents()[0]; const auto* description = content.media_description(); ASSERT_NE(description, nullptr); const std::vector codecs = description->codecs(); ASSERT_EQ(codecs.size(), 4u); std::string value; EXPECT_EQ(codecs[0].name, "H264"); EXPECT_TRUE(codecs[0].GetParam("packetization-mode", &value)); EXPECT_EQ(value, "0"); EXPECT_EQ(codecs[1].name, "VP9"); EXPECT_TRUE(codecs[1].GetParam("profile-id", &value)); EXPECT_EQ(value, "0"); EXPECT_EQ(codecs[2].name, "AV1"); EXPECT_TRUE(codecs[2].GetParam("profile", &value)); EXPECT_EQ(value, "0"); EXPECT_TRUE(codecs[2].GetParam("level-idx", &value)); EXPECT_EQ(value, "5"); EXPECT_TRUE(codecs[2].GetParam("tier", &value)); EXPECT_EQ(value, "0"); EXPECT_EQ(codecs[3].name, "H265"); EXPECT_TRUE(codecs[3].GetParam("level-id", &value)); EXPECT_EQ(value, "93"); EXPECT_TRUE(codecs[3].GetParam("tx-mode", &value)); EXPECT_EQ(value, "SRST"); } TEST_F(WebRtcSdpTest, SctpProtocolWithNonApplication) { std::string sdp = "v=0\r\n" "o=- 0 3 IN IP4 127.0.0.1\r\n" "s=-\r\n" "t=0 0\r\n" "a=group:BUNDLE 0\r\n" "a=fingerprint:sha-1 " "4A:AD:B9:B1:3F:82:18:3B:54:02:12:DF:3E:5D:49:6B:19:E5:7C:AB\r\n" "a=setup:actpass\r\n" "a=ice-ufrag:ETEn\r\n" "a=ice-pwd:OtSK0WpNtpUjkY4+86js7Z/l\r\n" "m=unsupported 9 UDP/DTLS/SCTP webrtc-datachannel\r\n" "c=IN IP4 0.0.0.0\r\n" "a=mid:0\r\n" "a=sctp-port:5000\r\n" "a=max-message-size:262144\r\n"; auto desc = CreateSessionDescription(SdpType::kOffer, sdp); ASSERT_NE(desc, nullptr); std::string serialized; EXPECT_TRUE(desc->ToString(&serialized)); } TEST_F(WebRtcSdpTest, RejectsInvalidCharactersInBundleGroup) { std::string sdp_with_bad_bundle_tag = kSdpFullString; // Inject a "shrug" unicode character. InjectAfter(kSessionTime, "a=group:BUNDLE \u1f937\r\n", &sdp_with_bad_bundle_tag); EXPECT_THAT(SdpDeserialize(sdp_with_bad_bundle_tag), IsNull()); } // Regression test for https://issues.chromium.org/441816631 TEST_F(WebRtcSdpTest, ShrugsOnUnknownStaticAudioCodecs) { // Note: this SDP is illegal, and needs improving. // See https://issues.webrtc.org/441854062 for details. std::string sdp_with_audio_codec_1 = "v=2\r\n" "o=- 1 2 3 4 5\r\n" "s=x\r\n" "t=0\r\n" "m=audio 0 1\r\n"; EXPECT_TRUE(SdpDeserialize(sdp_with_audio_codec_1)); } TEST_F(WebRtcSdpTest, DeserializeSframeAttribute) { std::string sdp = kSdpSessionString; sdp += kSdpVideoString; sdp += "a=sframe\r\n"; auto jdesc = SdpDeserialize(sdp); ASSERT_THAT(jdesc, NotNull()); ASSERT_EQ(1u, jdesc->description()->contents().size()); EXPECT_TRUE(jdesc->description() ->contents()[0] .media_description() ->sframe_enabled()); } TEST_F(WebRtcSdpTest, DeserializeWithoutSframeAttribute) { std::string sdp = kSdpSessionString; sdp += kSdpVideoString; auto jdesc = SdpDeserialize(sdp); ASSERT_THAT(jdesc, NotNull()); ASSERT_EQ(1u, jdesc->description()->contents().size()); EXPECT_FALSE(jdesc->description() ->contents()[0] .media_description() ->sframe_enabled()); } TEST_F(WebRtcSdpTest, SerializeSframeAttribute) { video_desc_->set_sframe_enabled(true); std::string message = SdpSerialize(MakeDescriptionWithoutCandidates()); EXPECT_NE(std::string::npos, message.find("a=sframe\r\n")); } TEST_F(WebRtcSdpTest, SerializeWithoutSframeAttribute) { video_desc_->set_sframe_enabled(false); std::string message = SdpSerialize(MakeDescriptionWithoutCandidates()); EXPECT_EQ(std::string::npos, message.find("a=sframe")); } TEST_F(WebRtcSdpTest, SframeAttributeRoundTrip) { video_desc_->set_sframe_enabled(true); std::string message = SdpSerialize(MakeDescriptionWithoutCandidates()); EXPECT_NE(std::string::npos, message.find("a=sframe\r\n")); auto jdesc = SdpDeserialize(message); ASSERT_THAT(jdesc, NotNull()); ASSERT_EQ(2u, jdesc->description()->contents().size()); // audio (index 0) should not have sframe, video (index 1) should. EXPECT_FALSE(jdesc->description() ->contents()[0] .media_description() ->sframe_enabled()); EXPECT_TRUE(jdesc->description() ->contents()[1] .media_description() ->sframe_enabled()); } } // namespace } // namespace webrtc