| /* |
| * Copyright 2004 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 "pc/media_session.h" |
| |
| #include <stddef.h> |
| |
| #include <algorithm> |
| #include <cstdint> |
| #include <map> |
| #include <memory> |
| #include <string> |
| #include <tuple> |
| #include <vector> |
| |
| #include "absl/algorithm/container.h" |
| #include "absl/strings/match.h" |
| #include "absl/strings/string_view.h" |
| #include "absl/types/optional.h" |
| #include "api/candidate.h" |
| #include "api/rtp_parameters.h" |
| #include "media/base/codec.h" |
| #include "media/base/media_constants.h" |
| #include "media/base/test_utils.h" |
| #include "media/sctp/sctp_transport_internal.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/rtp_media_utils.h" |
| #include "pc/rtp_parameters_conversion.h" |
| #include "rtc_base/arraysize.h" |
| #include "rtc_base/checks.h" |
| #include "rtc_base/fake_ssl_identity.h" |
| #include "rtc_base/rtc_certificate.h" |
| #include "rtc_base/ssl_identity.h" |
| #include "rtc_base/ssl_stream_adapter.h" |
| #include "rtc_base/string_encode.h" |
| #include "rtc_base/strings/string_builder.h" |
| #include "rtc_base/unique_id_generator.h" |
| #include "test/gmock.h" |
| #include "test/gtest.h" |
| #include "test/scoped_key_value_config.h" |
| |
| namespace cricket { |
| namespace { |
| |
| using ::rtc::kCsAeadAes128Gcm; |
| using ::rtc::kCsAeadAes256Gcm; |
| using ::rtc::kCsAesCm128HmacSha1_32; |
| using ::rtc::kCsAesCm128HmacSha1_80; |
| using ::rtc::UniqueRandomIdGenerator; |
| using ::testing::Bool; |
| using ::testing::Combine; |
| using ::testing::Contains; |
| using ::testing::Each; |
| using ::testing::ElementsAre; |
| using ::testing::ElementsAreArray; |
| using ::testing::Eq; |
| using ::testing::Field; |
| using ::testing::IsEmpty; |
| using ::testing::IsFalse; |
| using ::testing::Ne; |
| using ::testing::Not; |
| using ::testing::Pointwise; |
| using ::testing::SizeIs; |
| using ::testing::Values; |
| using ::testing::ValuesIn; |
| using ::webrtc::RtpExtension; |
| using ::webrtc::RtpTransceiverDirection; |
| |
| using Candidates = std::vector<Candidate>; |
| |
| AudioCodec CreateRedAudioCodec(absl::string_view encoding_id) { |
| AudioCodec red = CreateAudioCodec(63, "red", 48000, 2); |
| red.SetParam(kCodecParamNotInNameValueFormat, |
| std::string(encoding_id) + '/' + std::string(encoding_id)); |
| return red; |
| } |
| |
| const AudioCodec kAudioCodecs1[] = {CreateAudioCodec(111, "opus", 48000, 2), |
| CreateRedAudioCodec("111"), |
| CreateAudioCodec(102, "iLBC", 8000, 1), |
| CreateAudioCodec(0, "PCMU", 8000, 1), |
| CreateAudioCodec(8, "PCMA", 8000, 1), |
| CreateAudioCodec(117, "red", 8000, 1), |
| CreateAudioCodec(107, "CN", 48000, 1)}; |
| |
| const AudioCodec kAudioCodecs2[] = { |
| CreateAudioCodec(126, "foo", 16000, 1), |
| CreateAudioCodec(0, "PCMU", 8000, 1), |
| CreateAudioCodec(127, "iLBC", 8000, 1), |
| }; |
| |
| const AudioCodec kAudioCodecsAnswer[] = { |
| CreateAudioCodec(102, "iLBC", 8000, 1), |
| CreateAudioCodec(0, "PCMU", 8000, 1), |
| }; |
| |
| const VideoCodec kVideoCodecs1[] = {CreateVideoCodec(96, "H264-SVC"), |
| CreateVideoCodec(97, "H264")}; |
| |
| const VideoCodec kVideoCodecs1Reverse[] = {CreateVideoCodec(97, "H264"), |
| CreateVideoCodec(96, "H264-SVC")}; |
| |
| const VideoCodec kVideoCodecs2[] = {CreateVideoCodec(126, "H264"), |
| CreateVideoCodec(127, "H263")}; |
| |
| const VideoCodec kVideoCodecsAnswer[] = {CreateVideoCodec(97, "H264")}; |
| |
| const RtpExtension kAudioRtpExtension1[] = { |
| RtpExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 8), |
| RtpExtension("http://google.com/testing/audio_something", 10), |
| }; |
| |
| const RtpExtension kAudioRtpExtensionEncrypted1[] = { |
| RtpExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 8), |
| RtpExtension("http://google.com/testing/audio_something", 10), |
| RtpExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 12, true), |
| RtpExtension("http://google.com/testing/audio_something", 11, true), |
| }; |
| |
| const RtpExtension kAudioRtpExtension2[] = { |
| RtpExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 2), |
| RtpExtension("http://google.com/testing/audio_something_else", 8), |
| RtpExtension("http://google.com/testing/both_audio_and_video", 7), |
| }; |
| |
| const RtpExtension kAudioRtpExtension3[] = { |
| RtpExtension("http://google.com/testing/audio_something", 2), |
| RtpExtension("http://google.com/testing/both_audio_and_video", 3), |
| }; |
| |
| const RtpExtension kAudioRtpExtension3ForEncryption[] = { |
| RtpExtension("http://google.com/testing/audio_something", 2), |
| // Use RTP extension that supports encryption. |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 3), |
| }; |
| |
| const RtpExtension kAudioRtpExtension3ForEncryptionOffer[] = { |
| RtpExtension("http://google.com/testing/audio_something", 2), |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 3), |
| RtpExtension("http://google.com/testing/audio_something", 14, true), |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 13, true), |
| }; |
| |
| const RtpExtension kVideoRtpExtension3ForEncryptionOffer[] = { |
| RtpExtension("http://google.com/testing/video_something", 4), |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 3), |
| RtpExtension("http://google.com/testing/video_something", 12, true), |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 13, true), |
| }; |
| |
| const RtpExtension kAudioRtpExtensionAnswer[] = { |
| RtpExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 8), |
| }; |
| |
| const RtpExtension kAudioRtpExtensionEncryptedAnswer[] = { |
| RtpExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 12, true), |
| }; |
| |
| const RtpExtension kVideoRtpExtension1[] = { |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 14), |
| RtpExtension("http://google.com/testing/video_something", 13), |
| }; |
| |
| const RtpExtension kVideoRtpExtensionEncrypted1[] = { |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 14), |
| RtpExtension("http://google.com/testing/video_something", 13), |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 9, true), |
| RtpExtension("http://google.com/testing/video_something", 7, true), |
| }; |
| |
| const RtpExtension kVideoRtpExtension2[] = { |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 2), |
| RtpExtension("http://google.com/testing/video_something_else", 14), |
| RtpExtension("http://google.com/testing/both_audio_and_video", 7), |
| }; |
| |
| const RtpExtension kVideoRtpExtension3[] = { |
| RtpExtension("http://google.com/testing/video_something", 4), |
| RtpExtension("http://google.com/testing/both_audio_and_video", 5), |
| }; |
| |
| const RtpExtension kVideoRtpExtension3ForEncryption[] = { |
| RtpExtension("http://google.com/testing/video_something", 4), |
| // Use RTP extension that supports encryption. |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 5), |
| }; |
| |
| const RtpExtension kVideoRtpExtensionAnswer[] = { |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 14), |
| }; |
| |
| const RtpExtension kVideoRtpExtensionEncryptedAnswer[] = { |
| RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 9, true), |
| }; |
| |
| const RtpExtension kRtpExtensionTransportSequenceNumber01[] = { |
| RtpExtension("http://www.ietf.org/id/" |
| "draft-holmer-rmcat-transport-wide-cc-extensions-01", |
| 1), |
| }; |
| |
| const RtpExtension kRtpExtensionTransportSequenceNumber01And02[] = { |
| RtpExtension("http://www.ietf.org/id/" |
| "draft-holmer-rmcat-transport-wide-cc-extensions-01", |
| 1), |
| RtpExtension( |
| "http://www.webrtc.org/experiments/rtp-hdrext/transport-wide-cc-02", |
| 2), |
| }; |
| |
| const RtpExtension kRtpExtensionTransportSequenceNumber02[] = { |
| RtpExtension( |
| "http://www.webrtc.org/experiments/rtp-hdrext/transport-wide-cc-02", |
| 2), |
| }; |
| |
| const RtpExtension kRtpExtensionGenericFrameDescriptorUri00[] = { |
| RtpExtension("http://www.webrtc.org/experiments/rtp-hdrext/" |
| "generic-frame-descriptor-00", |
| 3), |
| }; |
| |
| const uint32_t kSimulcastParamsSsrc[] = {10, 11, 20, 21, 30, 31}; |
| const uint32_t kSimSsrc[] = {10, 20, 30}; |
| const uint32_t kFec1Ssrc[] = {10, 11}; |
| const uint32_t kFec2Ssrc[] = {20, 21}; |
| const uint32_t kFec3Ssrc[] = {30, 31}; |
| |
| const char kMediaStream1[] = "stream_1"; |
| const char kMediaStream2[] = "stream_2"; |
| const char kVideoTrack1[] = "video_1"; |
| const char kVideoTrack2[] = "video_2"; |
| const char kAudioTrack1[] = "audio_1"; |
| const char kAudioTrack2[] = "audio_2"; |
| const char kAudioTrack3[] = "audio_3"; |
| |
| const char* kMediaProtocols[] = {"RTP/AVP", "RTP/SAVP", "RTP/AVPF", |
| "RTP/SAVPF"}; |
| const char* kMediaProtocolsDtls[] = {"TCP/TLS/RTP/SAVPF", "TCP/TLS/RTP/SAVP", |
| "UDP/TLS/RTP/SAVPF", "UDP/TLS/RTP/SAVP"}; |
| |
| // These constants are used to make the code using "AddMediaDescriptionOptions" |
| // more readable. |
| constexpr bool kStopped = true; |
| constexpr bool kActive = false; |
| |
| bool IsMediaContentOfType(const ContentInfo* content, MediaType media_type) { |
| RTC_DCHECK(content); |
| return content->media_description()->type() == media_type; |
| } |
| |
| RtpTransceiverDirection GetMediaDirection(const ContentInfo* content) { |
| RTC_DCHECK(content); |
| return content->media_description()->direction(); |
| } |
| |
| void AddRtxCodec(const VideoCodec& rtx_codec, std::vector<VideoCodec>* codecs) { |
| ASSERT_FALSE(FindCodecById(*codecs, rtx_codec.id)); |
| codecs->push_back(rtx_codec); |
| } |
| |
| std::vector<std::string> GetCodecNames(const std::vector<Codec>& codecs) { |
| std::vector<std::string> codec_names; |
| codec_names.reserve(codecs.size()); |
| for (const auto& codec : codecs) { |
| codec_names.push_back(codec.name); |
| } |
| return codec_names; |
| } |
| |
| // This is used for test only. MIDs are not the identification of the |
| // MediaDescriptionOptions since some end points may not support MID and the SDP |
| // may not contain 'mid'. |
| std::vector<MediaDescriptionOptions>::iterator FindFirstMediaDescriptionByMid( |
| const std::string& mid, |
| MediaSessionOptions* opts) { |
| return absl::c_find_if( |
| opts->media_description_options, |
| [&mid](const MediaDescriptionOptions& t) { return t.mid == mid; }); |
| } |
| |
| std::vector<MediaDescriptionOptions>::const_iterator |
| FindFirstMediaDescriptionByMid(const std::string& mid, |
| const MediaSessionOptions& opts) { |
| return absl::c_find_if( |
| opts.media_description_options, |
| [&mid](const MediaDescriptionOptions& t) { return t.mid == mid; }); |
| } |
| |
| // Add a media section to the `session_options`. |
| void AddMediaDescriptionOptions(MediaType type, |
| const std::string& mid, |
| RtpTransceiverDirection direction, |
| bool stopped, |
| MediaSessionOptions* opts) { |
| opts->media_description_options.push_back( |
| MediaDescriptionOptions(type, mid, direction, stopped)); |
| } |
| |
| void AddAudioVideoSections(RtpTransceiverDirection direction, |
| MediaSessionOptions* opts) { |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", direction, kActive, |
| opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", direction, kActive, |
| opts); |
| } |
| |
| void AddDataSection(RtpTransceiverDirection direction, |
| MediaSessionOptions* opts) { |
| AddMediaDescriptionOptions(MEDIA_TYPE_DATA, "data", direction, kActive, opts); |
| } |
| |
| void AttachSenderToMediaDescriptionOptions( |
| const std::string& mid, |
| MediaType type, |
| const std::string& track_id, |
| const std::vector<std::string>& stream_ids, |
| const std::vector<RidDescription>& rids, |
| const SimulcastLayerList& simulcast_layers, |
| int num_sim_layer, |
| MediaSessionOptions* session_options) { |
| auto it = FindFirstMediaDescriptionByMid(mid, session_options); |
| switch (type) { |
| case MEDIA_TYPE_AUDIO: |
| it->AddAudioSender(track_id, stream_ids); |
| break; |
| case MEDIA_TYPE_VIDEO: |
| it->AddVideoSender(track_id, stream_ids, rids, simulcast_layers, |
| num_sim_layer); |
| break; |
| default: |
| RTC_DCHECK_NOTREACHED(); |
| } |
| } |
| |
| void AttachSenderToMediaDescriptionOptions( |
| const std::string& mid, |
| MediaType type, |
| const std::string& track_id, |
| const std::vector<std::string>& stream_ids, |
| int num_sim_layer, |
| MediaSessionOptions* session_options) { |
| AttachSenderToMediaDescriptionOptions(mid, type, track_id, stream_ids, {}, |
| SimulcastLayerList(), num_sim_layer, |
| session_options); |
| } |
| |
| void DetachSenderFromMediaSection(const std::string& mid, |
| const std::string& track_id, |
| MediaSessionOptions* session_options) { |
| std::vector<SenderOptions>& sender_options_list = |
| FindFirstMediaDescriptionByMid(mid, session_options)->sender_options; |
| auto sender_it = absl::c_find_if( |
| sender_options_list, [track_id](const SenderOptions& sender_options) { |
| return sender_options.track_id == track_id; |
| }); |
| RTC_DCHECK(sender_it != sender_options_list.end()); |
| sender_options_list.erase(sender_it); |
| } |
| |
| // Helper function used to create recv-only audio MediaSessionOptions. |
| MediaSessionOptions CreateAudioMediaSession() { |
| MediaSessionOptions session_options; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &session_options); |
| return session_options; |
| } |
| |
| // TODO(zhihuang): Most of these tests were written while MediaSessionOptions |
| // was designed for Plan B SDP, where only one audio "m=" section and one video |
| // "m=" section could be generated, and ordering couldn't be controlled. Many of |
| // these tests may be obsolete as a result, and should be refactored or removed. |
| class MediaSessionDescriptionFactoryTest : public testing::Test { |
| public: |
| MediaSessionDescriptionFactoryTest() |
| : tdf1_(field_trials), |
| tdf2_(field_trials), |
| f1_(nullptr, false, &ssrc_generator1, &tdf1_), |
| f2_(nullptr, false, &ssrc_generator2, &tdf2_) { |
| f1_.set_audio_codecs(MAKE_VECTOR(kAudioCodecs1), |
| MAKE_VECTOR(kAudioCodecs1)); |
| f1_.set_video_codecs(MAKE_VECTOR(kVideoCodecs1), |
| MAKE_VECTOR(kVideoCodecs1)); |
| f2_.set_audio_codecs(MAKE_VECTOR(kAudioCodecs2), |
| MAKE_VECTOR(kAudioCodecs2)); |
| f2_.set_video_codecs(MAKE_VECTOR(kVideoCodecs2), |
| MAKE_VECTOR(kVideoCodecs2)); |
| tdf1_.set_certificate(rtc::RTCCertificate::Create( |
| std::unique_ptr<rtc::SSLIdentity>(new rtc::FakeSSLIdentity("id1")))); |
| tdf2_.set_certificate(rtc::RTCCertificate::Create( |
| std::unique_ptr<rtc::SSLIdentity>(new rtc::FakeSSLIdentity("id2")))); |
| } |
| |
| // Create a video StreamParamsVec object with: |
| // - one video stream with 3 simulcast streams and FEC, |
| StreamParamsVec CreateComplexVideoStreamParamsVec() { |
| SsrcGroup sim_group("SIM", MAKE_VECTOR(kSimSsrc)); |
| SsrcGroup fec_group1("FEC", MAKE_VECTOR(kFec1Ssrc)); |
| SsrcGroup fec_group2("FEC", MAKE_VECTOR(kFec2Ssrc)); |
| SsrcGroup fec_group3("FEC", MAKE_VECTOR(kFec3Ssrc)); |
| |
| std::vector<SsrcGroup> ssrc_groups; |
| ssrc_groups.push_back(sim_group); |
| ssrc_groups.push_back(fec_group1); |
| ssrc_groups.push_back(fec_group2); |
| ssrc_groups.push_back(fec_group3); |
| |
| StreamParams simulcast_params; |
| simulcast_params.id = kVideoTrack1; |
| simulcast_params.ssrcs = MAKE_VECTOR(kSimulcastParamsSsrc); |
| simulcast_params.ssrc_groups = ssrc_groups; |
| simulcast_params.cname = "Video_SIM_FEC"; |
| simulcast_params.set_stream_ids({kMediaStream1}); |
| |
| StreamParamsVec video_streams; |
| video_streams.push_back(simulcast_params); |
| |
| return video_streams; |
| } |
| |
| // Returns true if the transport info contains "renomination" as an |
| // ICE option. |
| bool GetIceRenomination(const TransportInfo* transport_info) { |
| return absl::c_linear_search(transport_info->description.transport_options, |
| "renomination"); |
| } |
| |
| void TestTransportInfo(bool offer, |
| const MediaSessionOptions& options, |
| bool has_current_desc) { |
| const std::string current_audio_ufrag = "current_audio_ufrag"; |
| const std::string current_audio_pwd = "current_audio_pwd"; |
| const std::string current_video_ufrag = "current_video_ufrag"; |
| const std::string current_video_pwd = "current_video_pwd"; |
| const std::string current_data_ufrag = "current_data_ufrag"; |
| const std::string current_data_pwd = "current_data_pwd"; |
| std::unique_ptr<SessionDescription> current_desc; |
| std::unique_ptr<SessionDescription> desc; |
| if (has_current_desc) { |
| current_desc = std::make_unique<SessionDescription>(); |
| current_desc->AddTransportInfo(TransportInfo( |
| "audio", |
| TransportDescription(current_audio_ufrag, current_audio_pwd))); |
| current_desc->AddTransportInfo(TransportInfo( |
| "video", |
| TransportDescription(current_video_ufrag, current_video_pwd))); |
| current_desc->AddTransportInfo(TransportInfo( |
| "data", TransportDescription(current_data_ufrag, current_data_pwd))); |
| } |
| if (offer) { |
| desc = f1_.CreateOfferOrError(options, current_desc.get()).MoveValue(); |
| } else { |
| std::unique_ptr<SessionDescription> offer; |
| offer = f1_.CreateOfferOrError(options, nullptr).MoveValue(); |
| desc = f1_.CreateAnswerOrError(offer.get(), options, current_desc.get()) |
| .MoveValue(); |
| } |
| ASSERT_TRUE(desc); |
| const TransportInfo* ti_audio = desc->GetTransportInfoByName("audio"); |
| if (options.has_audio()) { |
| if (has_current_desc) { |
| EXPECT_EQ(current_audio_ufrag, ti_audio->description.ice_ufrag); |
| EXPECT_EQ(current_audio_pwd, ti_audio->description.ice_pwd); |
| } else { |
| EXPECT_EQ(static_cast<size_t>(ICE_UFRAG_LENGTH), |
| ti_audio->description.ice_ufrag.size()); |
| EXPECT_EQ(static_cast<size_t>(ICE_PWD_LENGTH), |
| ti_audio->description.ice_pwd.size()); |
| } |
| auto media_desc_options_it = |
| FindFirstMediaDescriptionByMid("audio", options); |
| EXPECT_EQ( |
| media_desc_options_it->transport_options.enable_ice_renomination, |
| GetIceRenomination(ti_audio)); |
| } |
| const TransportInfo* ti_video = desc->GetTransportInfoByName("video"); |
| if (options.has_video()) { |
| auto media_desc_options_it = |
| FindFirstMediaDescriptionByMid("video", options); |
| if (options.bundle_enabled) { |
| EXPECT_EQ(ti_audio->description.ice_ufrag, |
| ti_video->description.ice_ufrag); |
| EXPECT_EQ(ti_audio->description.ice_pwd, ti_video->description.ice_pwd); |
| } else { |
| if (has_current_desc) { |
| EXPECT_EQ(current_video_ufrag, ti_video->description.ice_ufrag); |
| EXPECT_EQ(current_video_pwd, ti_video->description.ice_pwd); |
| } else { |
| EXPECT_EQ(static_cast<size_t>(ICE_UFRAG_LENGTH), |
| ti_video->description.ice_ufrag.size()); |
| EXPECT_EQ(static_cast<size_t>(ICE_PWD_LENGTH), |
| ti_video->description.ice_pwd.size()); |
| } |
| } |
| EXPECT_EQ( |
| media_desc_options_it->transport_options.enable_ice_renomination, |
| GetIceRenomination(ti_video)); |
| } |
| const TransportInfo* ti_data = desc->GetTransportInfoByName("data"); |
| if (options.has_data()) { |
| if (options.bundle_enabled) { |
| EXPECT_EQ(ti_audio->description.ice_ufrag, |
| ti_data->description.ice_ufrag); |
| EXPECT_EQ(ti_audio->description.ice_pwd, ti_data->description.ice_pwd); |
| } else { |
| if (has_current_desc) { |
| EXPECT_EQ(current_data_ufrag, ti_data->description.ice_ufrag); |
| EXPECT_EQ(current_data_pwd, ti_data->description.ice_pwd); |
| } else { |
| EXPECT_EQ(static_cast<size_t>(ICE_UFRAG_LENGTH), |
| ti_data->description.ice_ufrag.size()); |
| EXPECT_EQ(static_cast<size_t>(ICE_PWD_LENGTH), |
| ti_data->description.ice_pwd.size()); |
| } |
| } |
| auto media_desc_options_it = |
| FindFirstMediaDescriptionByMid("data", options); |
| EXPECT_EQ( |
| media_desc_options_it->transport_options.enable_ice_renomination, |
| GetIceRenomination(ti_data)); |
| } |
| } |
| |
| // This test that the audio and video media direction is set to |
| // `expected_direction_in_answer` in an answer if the offer direction is set |
| // to `direction_in_offer` and the answer is willing to both send and receive. |
| void TestMediaDirectionInAnswer( |
| RtpTransceiverDirection direction_in_offer, |
| RtpTransceiverDirection expected_direction_in_answer) { |
| MediaSessionOptions offer_opts; |
| AddAudioVideoSections(direction_in_offer, &offer_opts); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| ContentInfo* ac_offer = offer->GetContentByName("audio"); |
| ASSERT_TRUE(ac_offer); |
| ContentInfo* vc_offer = offer->GetContentByName("video"); |
| ASSERT_TRUE(vc_offer); |
| |
| MediaSessionOptions answer_opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kSendRecv, &answer_opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, nullptr).MoveValue(); |
| const AudioContentDescription* acd_answer = |
| GetFirstAudioContentDescription(answer.get()); |
| EXPECT_EQ(expected_direction_in_answer, acd_answer->direction()); |
| const VideoContentDescription* vcd_answer = |
| GetFirstVideoContentDescription(answer.get()); |
| EXPECT_EQ(expected_direction_in_answer, vcd_answer->direction()); |
| } |
| |
| bool VerifyNoCNCodecs(const ContentInfo* content) { |
| RTC_DCHECK(content); |
| RTC_CHECK(content->media_description()); |
| for (const Codec& codec : content->media_description()->codecs()) { |
| if (codec.name == "CN") { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| void TestTransportSequenceNumberNegotiation( |
| const RtpHeaderExtensions& local, |
| const RtpHeaderExtensions& offered, |
| const RtpHeaderExtensions& expectedAnswer) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| SetAudioVideoRtpHeaderExtensions(offered, offered, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| SetAudioVideoRtpHeaderExtensions(local, local, &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| EXPECT_EQ( |
| expectedAnswer, |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| expectedAnswer, |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions()); |
| } |
| |
| std::vector<webrtc::RtpHeaderExtensionCapability> |
| HeaderExtensionCapabilitiesFromRtpExtensions(RtpHeaderExtensions extensions) { |
| std::vector<webrtc::RtpHeaderExtensionCapability> capabilities; |
| for (const auto& extension : extensions) { |
| webrtc::RtpHeaderExtensionCapability capability( |
| extension.uri, extension.id, |
| webrtc::RtpTransceiverDirection::kSendRecv); |
| capabilities.push_back(capability); |
| } |
| return capabilities; |
| } |
| |
| void SetAudioVideoRtpHeaderExtensions(RtpHeaderExtensions audio_exts, |
| RtpHeaderExtensions video_exts, |
| MediaSessionOptions* opts) { |
| auto audio_caps = HeaderExtensionCapabilitiesFromRtpExtensions(audio_exts); |
| auto video_caps = HeaderExtensionCapabilitiesFromRtpExtensions(video_exts); |
| for (auto& entry : opts->media_description_options) { |
| switch (entry.type) { |
| case MEDIA_TYPE_AUDIO: |
| entry.header_extensions = audio_caps; |
| break; |
| case MEDIA_TYPE_VIDEO: |
| entry.header_extensions = video_caps; |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| protected: |
| webrtc::test::ScopedKeyValueConfig field_trials; |
| UniqueRandomIdGenerator ssrc_generator1; |
| UniqueRandomIdGenerator ssrc_generator2; |
| TransportDescriptionFactory tdf1_; |
| TransportDescriptionFactory tdf2_; |
| MediaSessionDescriptionFactory f1_; |
| MediaSessionDescriptionFactory f2_; |
| }; |
| |
| // Create a typical audio offer, and ensure it matches what we expect. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateAudioOffer) { |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(CreateAudioMediaSession(), nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| const ContentInfo* ac = offer->GetContentByName("audio"); |
| const ContentInfo* vc = offer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| EXPECT_FALSE(vc); |
| EXPECT_EQ(MediaProtocolType::kRtp, ac->type); |
| const MediaContentDescription* acd = ac->media_description(); |
| EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type()); |
| EXPECT_EQ(f1_.audio_sendrecv_codecs(), acd->codecs()); |
| EXPECT_EQ(0U, acd->first_ssrc()); // no sender is attached. |
| EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // default bandwidth (auto) |
| EXPECT_TRUE(acd->rtcp_mux()); // rtcp-mux defaults on |
| EXPECT_EQ(kMediaProtocolDtlsSavpf, acd->protocol()); |
| } |
| |
| // Create an offer with just Opus and RED. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestCreateAudioOfferWithJustOpusAndRed) { |
| // First, prefer to only use opus and red. |
| std::vector<webrtc::RtpCodecCapability> preferences; |
| preferences.push_back( |
| webrtc::ToRtpCodecCapability(f1_.audio_sendrecv_codecs()[0])); |
| preferences.push_back( |
| webrtc::ToRtpCodecCapability(f1_.audio_sendrecv_codecs()[1])); |
| EXPECT_EQ("opus", preferences[0].name); |
| EXPECT_EQ("red", preferences[1].name); |
| |
| auto opts = CreateAudioMediaSession(); |
| opts.media_description_options.at(0).codec_preferences = preferences; |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| const ContentInfo* ac = offer->GetContentByName("audio"); |
| const ContentInfo* vc = offer->GetContentByName("video"); |
| ASSERT_TRUE(ac != NULL); |
| ASSERT_TRUE(vc == NULL); |
| EXPECT_EQ(MediaProtocolType::kRtp, ac->type); |
| const MediaContentDescription* acd = ac->media_description(); |
| EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type()); |
| EXPECT_EQ(2U, acd->codecs().size()); |
| EXPECT_EQ("opus", acd->codecs()[0].name); |
| EXPECT_EQ("red", acd->codecs()[1].name); |
| } |
| |
| // Create an offer with RED before Opus, which enables RED with Opus encoding. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateAudioOfferWithRedForOpus) { |
| // First, prefer to only use opus and red. |
| std::vector<webrtc::RtpCodecCapability> preferences; |
| preferences.push_back( |
| webrtc::ToRtpCodecCapability(f1_.audio_sendrecv_codecs()[1])); |
| preferences.push_back( |
| webrtc::ToRtpCodecCapability(f1_.audio_sendrecv_codecs()[0])); |
| EXPECT_EQ("red", preferences[0].name); |
| EXPECT_EQ("opus", preferences[1].name); |
| |
| auto opts = CreateAudioMediaSession(); |
| opts.media_description_options.at(0).codec_preferences = preferences; |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| const ContentInfo* ac = offer->GetContentByName("audio"); |
| const ContentInfo* vc = offer->GetContentByName("video"); |
| ASSERT_TRUE(ac != NULL); |
| ASSERT_TRUE(vc == NULL); |
| EXPECT_EQ(MediaProtocolType::kRtp, ac->type); |
| const MediaContentDescription* acd = ac->media_description(); |
| EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type()); |
| EXPECT_EQ(2U, acd->codecs().size()); |
| EXPECT_EQ("red", acd->codecs()[0].name); |
| EXPECT_EQ("opus", acd->codecs()[1].name); |
| } |
| |
| // Create a typical video offer, and ensure it matches what we expect. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateVideoOffer) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| const ContentInfo* ac = offer->GetContentByName("audio"); |
| const ContentInfo* vc = offer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| EXPECT_EQ(MediaProtocolType::kRtp, ac->type); |
| EXPECT_EQ(MediaProtocolType::kRtp, vc->type); |
| const MediaContentDescription* acd = ac->media_description(); |
| const MediaContentDescription* vcd = vc->media_description(); |
| EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type()); |
| EXPECT_EQ(f1_.audio_sendrecv_codecs(), acd->codecs()); |
| EXPECT_EQ(0U, acd->first_ssrc()); // no sender is attached |
| EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // default bandwidth (auto) |
| EXPECT_TRUE(acd->rtcp_mux()); // rtcp-mux defaults on |
| EXPECT_EQ(kMediaProtocolDtlsSavpf, acd->protocol()); |
| EXPECT_EQ(MEDIA_TYPE_VIDEO, vcd->type()); |
| EXPECT_EQ(f1_.video_sendrecv_codecs(), vcd->codecs()); |
| EXPECT_EQ(0U, vcd->first_ssrc()); // no sender is attached |
| EXPECT_EQ(kAutoBandwidth, vcd->bandwidth()); // default bandwidth (auto) |
| EXPECT_TRUE(vcd->rtcp_mux()); // rtcp-mux defaults on |
| EXPECT_EQ(kMediaProtocolDtlsSavpf, vcd->protocol()); |
| } |
| |
| // Test creating an offer with bundle where the Codecs have the same dynamic |
| // RTP playlod type. The test verifies that the offer don't contain the |
| // duplicate RTP payload types. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestBundleOfferWithSameCodecPlType) { |
| const VideoCodec& offered_video_codec = f2_.video_sendrecv_codecs()[0]; |
| const AudioCodec& offered_audio_codec = f2_.audio_sendrecv_codecs()[0]; |
| ASSERT_EQ(offered_video_codec.id, offered_audio_codec.id); |
| |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| opts.bundle_enabled = true; |
| std::unique_ptr<SessionDescription> offer = |
| f2_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| const VideoContentDescription* vcd = |
| GetFirstVideoContentDescription(offer.get()); |
| const AudioContentDescription* acd = |
| GetFirstAudioContentDescription(offer.get()); |
| ASSERT_TRUE(vcd); |
| ASSERT_TRUE(acd); |
| EXPECT_NE(vcd->codecs()[0].id, acd->codecs()[0].id); |
| EXPECT_EQ(vcd->codecs()[0].name, offered_video_codec.name); |
| EXPECT_EQ(acd->codecs()[0].name, offered_audio_codec.name); |
| } |
| |
| // Test creating an updated offer with bundle, audio, video and data |
| // after an audio only session has been negotiated. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestCreateUpdatedVideoOfferWithBundle) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kInactive, kStopped, |
| &opts); |
| opts.bundle_enabled = true; |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| MediaSessionOptions updated_opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &updated_opts); |
| updated_opts.bundle_enabled = true; |
| std::unique_ptr<SessionDescription> updated_offer( |
| f1_.CreateOfferOrError(updated_opts, answer.get()).MoveValue()); |
| |
| const AudioContentDescription* acd = |
| GetFirstAudioContentDescription(updated_offer.get()); |
| const VideoContentDescription* vcd = |
| GetFirstVideoContentDescription(updated_offer.get()); |
| EXPECT_TRUE(vcd); |
| EXPECT_TRUE(acd); |
| |
| EXPECT_EQ(kMediaProtocolDtlsSavpf, acd->protocol()); |
| EXPECT_EQ(kMediaProtocolDtlsSavpf, vcd->protocol()); |
| } |
| |
| // Create an SCTP data offer with bundle without error. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSctpDataOffer) { |
| MediaSessionOptions opts; |
| opts.bundle_enabled = true; |
| AddDataSection(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| EXPECT_TRUE(offer.get()); |
| EXPECT_TRUE(offer->GetContentByName("data")); |
| auto dcd = GetFirstSctpDataContentDescription(offer.get()); |
| ASSERT_TRUE(dcd); |
| // Since this transport is insecure, the protocol should be "SCTP". |
| EXPECT_EQ(kMediaProtocolUdpDtlsSctp, dcd->protocol()); |
| } |
| |
| // Create an SCTP data offer with bundle without error. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSecureSctpDataOffer) { |
| MediaSessionOptions opts; |
| opts.bundle_enabled = true; |
| AddDataSection(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| EXPECT_TRUE(offer.get()); |
| EXPECT_TRUE(offer->GetContentByName("data")); |
| auto dcd = GetFirstSctpDataContentDescription(offer.get()); |
| ASSERT_TRUE(dcd); |
| // The protocol should now be "UDP/DTLS/SCTP" |
| EXPECT_EQ(kMediaProtocolUdpDtlsSctp, dcd->protocol()); |
| } |
| |
| // Test creating an sctp data channel from an already generated offer. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateImplicitSctpDataOffer) { |
| MediaSessionOptions opts; |
| opts.bundle_enabled = true; |
| AddDataSection(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer1( |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue()); |
| ASSERT_TRUE(offer1.get()); |
| const ContentInfo* data = offer1->GetContentByName("data"); |
| ASSERT_TRUE(data); |
| ASSERT_EQ(kMediaProtocolUdpDtlsSctp, data->media_description()->protocol()); |
| |
| std::unique_ptr<SessionDescription> offer2( |
| f1_.CreateOfferOrError(opts, offer1.get()).MoveValue()); |
| data = offer2->GetContentByName("data"); |
| ASSERT_TRUE(data); |
| EXPECT_EQ(kMediaProtocolUdpDtlsSctp, data->media_description()->protocol()); |
| } |
| |
| // Test that if BUNDLE is enabled and all media sections are rejected then the |
| // BUNDLE group is not present in the re-offer. |
| TEST_F(MediaSessionDescriptionFactoryTest, ReOfferNoBundleGroupIfAllRejected) { |
| MediaSessionOptions opts; |
| opts.bundle_enabled = true; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| |
| opts.media_description_options[0].stopped = true; |
| std::unique_ptr<SessionDescription> reoffer = |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue(); |
| |
| EXPECT_FALSE(reoffer->GetGroupByName(GROUP_TYPE_BUNDLE)); |
| } |
| |
| // Test that if BUNDLE is enabled and the remote re-offer does not include a |
| // BUNDLE group since all media sections are rejected, then the re-answer also |
| // does not include a BUNDLE group. |
| TEST_F(MediaSessionDescriptionFactoryTest, ReAnswerNoBundleGroupIfAllRejected) { |
| MediaSessionOptions opts; |
| opts.bundle_enabled = true; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| opts.media_description_options[0].stopped = true; |
| std::unique_ptr<SessionDescription> reoffer = |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue(); |
| std::unique_ptr<SessionDescription> reanswer = |
| f2_.CreateAnswerOrError(reoffer.get(), opts, answer.get()).MoveValue(); |
| |
| EXPECT_FALSE(reanswer->GetGroupByName(GROUP_TYPE_BUNDLE)); |
| } |
| |
| // Test that if BUNDLE is enabled and the previous offerer-tagged media section |
| // was rejected then the new offerer-tagged media section is the non-rejected |
| // media section. |
| TEST_F(MediaSessionDescriptionFactoryTest, ReOfferChangeBundleOffererTagged) { |
| MediaSessionOptions opts; |
| opts.bundle_enabled = true; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| |
| // Reject the audio m= section and add a video m= section. |
| opts.media_description_options[0].stopped = true; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> reoffer = |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue(); |
| |
| const ContentGroup* bundle_group = reoffer->GetGroupByName(GROUP_TYPE_BUNDLE); |
| ASSERT_TRUE(bundle_group); |
| EXPECT_FALSE(bundle_group->HasContentName("audio")); |
| EXPECT_TRUE(bundle_group->HasContentName("video")); |
| } |
| |
| // Test that if BUNDLE is enabled and the previous offerer-tagged media section |
| // was rejected and a new media section is added, then the re-answer BUNDLE |
| // group will contain only the non-rejected media section. |
| TEST_F(MediaSessionDescriptionFactoryTest, ReAnswerChangedBundleOffererTagged) { |
| MediaSessionOptions opts; |
| opts.bundle_enabled = true; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| // Reject the audio m= section and add a video m= section. |
| opts.media_description_options[0].stopped = true; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> reoffer = |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue(); |
| std::unique_ptr<SessionDescription> reanswer = |
| f2_.CreateAnswerOrError(reoffer.get(), opts, answer.get()).MoveValue(); |
| |
| const ContentGroup* bundle_group = |
| reanswer->GetGroupByName(GROUP_TYPE_BUNDLE); |
| ASSERT_TRUE(bundle_group); |
| EXPECT_FALSE(bundle_group->HasContentName("audio")); |
| EXPECT_TRUE(bundle_group->HasContentName("video")); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| CreateAnswerForOfferWithMultipleBundleGroups) { |
| // Create an offer with 4 m= sections, initially without BUNDLE groups. |
| MediaSessionOptions opts; |
| opts.bundle_enabled = false; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "2", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "3", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "4", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer->groups().empty()); |
| |
| // Munge the offer to have two groups. Offers like these cannot be generated |
| // without munging, but it is valid to receive such offers from remote |
| // endpoints. |
| ContentGroup bundle_group1(GROUP_TYPE_BUNDLE); |
| bundle_group1.AddContentName("1"); |
| bundle_group1.AddContentName("2"); |
| ContentGroup bundle_group2(GROUP_TYPE_BUNDLE); |
| bundle_group2.AddContentName("3"); |
| bundle_group2.AddContentName("4"); |
| offer->AddGroup(bundle_group1); |
| offer->AddGroup(bundle_group2); |
| |
| // If BUNDLE is enabled, the answer to this offer should accept both BUNDLE |
| // groups. |
| opts.bundle_enabled = true; |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| std::vector<const ContentGroup*> answer_groups = |
| answer->GetGroupsByName(GROUP_TYPE_BUNDLE); |
| ASSERT_EQ(answer_groups.size(), 2u); |
| EXPECT_EQ(answer_groups[0]->content_names().size(), 2u); |
| EXPECT_TRUE(answer_groups[0]->HasContentName("1")); |
| EXPECT_TRUE(answer_groups[0]->HasContentName("2")); |
| EXPECT_EQ(answer_groups[1]->content_names().size(), 2u); |
| EXPECT_TRUE(answer_groups[1]->HasContentName("3")); |
| EXPECT_TRUE(answer_groups[1]->HasContentName("4")); |
| |
| // If BUNDLE is disabled, the answer to this offer should reject both BUNDLE |
| // groups. |
| opts.bundle_enabled = false; |
| answer = f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| answer_groups = answer->GetGroupsByName(GROUP_TYPE_BUNDLE); |
| // Rejected groups are still listed, but they are empty. |
| ASSERT_EQ(answer_groups.size(), 2u); |
| EXPECT_TRUE(answer_groups[0]->content_names().empty()); |
| EXPECT_TRUE(answer_groups[1]->content_names().empty()); |
| } |
| |
| // Test that if the BUNDLE offerer-tagged media section is changed in a reoffer |
| // and there is still a non-rejected media section that was in the initial |
| // offer, then the ICE credentials do not change in the reoffer offerer-tagged |
| // media section. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| ReOfferChangeBundleOffererTaggedKeepsIceCredentials) { |
| MediaSessionOptions opts; |
| opts.bundle_enabled = true; |
| AddAudioVideoSections(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| // Reject the audio m= section. |
| opts.media_description_options[0].stopped = true; |
| std::unique_ptr<SessionDescription> reoffer = |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue(); |
| |
| const TransportDescription* offer_tagged = |
| offer->GetTransportDescriptionByName("audio"); |
| ASSERT_TRUE(offer_tagged); |
| const TransportDescription* reoffer_tagged = |
| reoffer->GetTransportDescriptionByName("video"); |
| ASSERT_TRUE(reoffer_tagged); |
| EXPECT_EQ(offer_tagged->ice_ufrag, reoffer_tagged->ice_ufrag); |
| EXPECT_EQ(offer_tagged->ice_pwd, reoffer_tagged->ice_pwd); |
| } |
| |
| // Test that if the BUNDLE offerer-tagged media section is changed in a reoffer |
| // and there is still a non-rejected media section that was in the initial |
| // offer, then the ICE credentials do not change in the reanswer answerer-tagged |
| // media section. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| ReAnswerChangeBundleOffererTaggedKeepsIceCredentials) { |
| MediaSessionOptions opts; |
| opts.bundle_enabled = true; |
| AddAudioVideoSections(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| // Reject the audio m= section. |
| opts.media_description_options[0].stopped = true; |
| std::unique_ptr<SessionDescription> reoffer = |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue(); |
| std::unique_ptr<SessionDescription> reanswer = |
| f2_.CreateAnswerOrError(reoffer.get(), opts, answer.get()).MoveValue(); |
| |
| const TransportDescription* answer_tagged = |
| answer->GetTransportDescriptionByName("audio"); |
| ASSERT_TRUE(answer_tagged); |
| const TransportDescription* reanswer_tagged = |
| reanswer->GetTransportDescriptionByName("video"); |
| ASSERT_TRUE(reanswer_tagged); |
| EXPECT_EQ(answer_tagged->ice_ufrag, reanswer_tagged->ice_ufrag); |
| EXPECT_EQ(answer_tagged->ice_pwd, reanswer_tagged->ice_pwd); |
| } |
| |
| // Create an audio, video offer without legacy StreamParams. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestCreateOfferWithoutLegacyStreams) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| const ContentInfo* ac = offer->GetContentByName("audio"); |
| const ContentInfo* vc = offer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| const MediaContentDescription* acd = ac->media_description(); |
| const MediaContentDescription* vcd = vc->media_description(); |
| |
| EXPECT_FALSE(vcd->has_ssrcs()); // No StreamParams. |
| EXPECT_FALSE(acd->has_ssrcs()); // No StreamParams. |
| } |
| |
| // Creates an audio+video sendonly offer. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSendOnlyOffer) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kSendOnly, &opts); |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack1, |
| {kMediaStream1}, 1, &opts); |
| AttachSenderToMediaDescriptionOptions("audio", MEDIA_TYPE_AUDIO, kAudioTrack1, |
| {kMediaStream1}, 1, &opts); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| EXPECT_EQ(2u, offer->contents().size()); |
| EXPECT_TRUE(IsMediaContentOfType(&offer->contents()[0], MEDIA_TYPE_AUDIO)); |
| EXPECT_TRUE(IsMediaContentOfType(&offer->contents()[1], MEDIA_TYPE_VIDEO)); |
| |
| EXPECT_EQ(RtpTransceiverDirection::kSendOnly, |
| GetMediaDirection(&offer->contents()[0])); |
| EXPECT_EQ(RtpTransceiverDirection::kSendOnly, |
| GetMediaDirection(&offer->contents()[1])); |
| } |
| |
| // Verifies that the order of the media contents in the current |
| // SessionDescription is preserved in the new SessionDescription. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateOfferContentOrder) { |
| MediaSessionOptions opts; |
| AddDataSection(RtpTransceiverDirection::kSendRecv, &opts); |
| |
| std::unique_ptr<SessionDescription> offer1( |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue()); |
| ASSERT_TRUE(offer1.get()); |
| EXPECT_EQ(1u, offer1->contents().size()); |
| EXPECT_TRUE(IsMediaContentOfType(&offer1->contents()[0], MEDIA_TYPE_DATA)); |
| |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer2( |
| f1_.CreateOfferOrError(opts, offer1.get()).MoveValue()); |
| ASSERT_TRUE(offer2.get()); |
| EXPECT_EQ(2u, offer2->contents().size()); |
| EXPECT_TRUE(IsMediaContentOfType(&offer2->contents()[0], MEDIA_TYPE_DATA)); |
| EXPECT_TRUE(IsMediaContentOfType(&offer2->contents()[1], MEDIA_TYPE_VIDEO)); |
| |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer3( |
| f1_.CreateOfferOrError(opts, offer2.get()).MoveValue()); |
| ASSERT_TRUE(offer3.get()); |
| EXPECT_EQ(3u, offer3->contents().size()); |
| EXPECT_TRUE(IsMediaContentOfType(&offer3->contents()[0], MEDIA_TYPE_DATA)); |
| EXPECT_TRUE(IsMediaContentOfType(&offer3->contents()[1], MEDIA_TYPE_VIDEO)); |
| EXPECT_TRUE(IsMediaContentOfType(&offer3->contents()[2], MEDIA_TYPE_AUDIO)); |
| } |
| |
| // Create a typical audio answer, and ensure it matches what we expect. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateAudioAnswer) { |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(CreateAudioMediaSession(), nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), CreateAudioMediaSession(), nullptr) |
| .MoveValue(); |
| const ContentInfo* ac = answer->GetContentByName("audio"); |
| const ContentInfo* vc = answer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| EXPECT_FALSE(vc); |
| EXPECT_EQ(MediaProtocolType::kRtp, ac->type); |
| const MediaContentDescription* acd = ac->media_description(); |
| EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type()); |
| EXPECT_THAT(acd->codecs(), ElementsAreArray(kAudioCodecsAnswer)); |
| EXPECT_EQ(0U, acd->first_ssrc()); // no sender is attached |
| EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // negotiated auto bw |
| EXPECT_TRUE(acd->rtcp_mux()); // negotiated rtcp-mux |
| EXPECT_EQ(kMediaProtocolDtlsSavpf, acd->protocol()); |
| } |
| |
| // Create a typical audio answer with GCM ciphers enabled, and ensure it |
| // matches what we expect. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateAudioAnswerGcm) { |
| MediaSessionOptions opts = CreateAudioMediaSession(); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* ac = answer->GetContentByName("audio"); |
| const ContentInfo* vc = answer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| EXPECT_FALSE(vc); |
| EXPECT_EQ(MediaProtocolType::kRtp, ac->type); |
| const MediaContentDescription* acd = ac->media_description(); |
| EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type()); |
| EXPECT_THAT(acd->codecs(), ElementsAreArray(kAudioCodecsAnswer)); |
| EXPECT_EQ(0U, acd->first_ssrc()); // no sender is attached |
| EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // negotiated auto bw |
| EXPECT_TRUE(acd->rtcp_mux()); // negotiated rtcp-mux |
| EXPECT_EQ(kMediaProtocolDtlsSavpf, acd->protocol()); |
| } |
| |
| // Create an audio answer with no common codecs, and ensure it is rejected. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestCreateAudioAnswerWithNoCommonCodecs) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::vector f1_codecs = {CreateAudioCodec(96, "opus", 48000, 1)}; |
| f1_.set_audio_codecs(f1_codecs, f1_codecs); |
| |
| std::vector f2_codecs = {CreateAudioCodec(0, "PCMU", 8000, 1)}; |
| f2_.set_audio_codecs(f2_codecs, f2_codecs); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* ac = answer->GetContentByName("audio"); |
| ASSERT_TRUE(ac); |
| EXPECT_TRUE(ac->rejected); |
| } |
| |
| // Create a typical video answer, and ensure it matches what we expect. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateVideoAnswer) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* ac = answer->GetContentByName("audio"); |
| const ContentInfo* vc = answer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| EXPECT_EQ(MediaProtocolType::kRtp, ac->type); |
| EXPECT_EQ(MediaProtocolType::kRtp, vc->type); |
| const MediaContentDescription* acd = ac->media_description(); |
| const MediaContentDescription* vcd = vc->media_description(); |
| EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type()); |
| EXPECT_THAT(acd->codecs(), ElementsAreArray(kAudioCodecsAnswer)); |
| EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // negotiated auto bw |
| EXPECT_EQ(0U, acd->first_ssrc()); // no sender is attached |
| EXPECT_TRUE(acd->rtcp_mux()); // negotiated rtcp-mux |
| EXPECT_EQ(MEDIA_TYPE_VIDEO, vcd->type()); |
| EXPECT_THAT(vcd->codecs(), ElementsAreArray(kVideoCodecsAnswer)); |
| EXPECT_EQ(0U, vcd->first_ssrc()); // no sender is attached |
| EXPECT_TRUE(vcd->rtcp_mux()); // negotiated rtcp-mux |
| EXPECT_EQ(kMediaProtocolDtlsSavpf, vcd->protocol()); |
| } |
| |
| // Create a video answer with no common codecs, and ensure it is rejected. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestCreateVideoAnswerWithNoCommonCodecs) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::vector f1_codecs = {CreateVideoCodec(96, "H264")}; |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::vector f2_codecs = {CreateVideoCodec(97, "VP8")}; |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* vc = answer->GetContentByName("video"); |
| ASSERT_TRUE(vc); |
| EXPECT_TRUE(vc->rejected); |
| } |
| |
| // Create a video answer with no common codecs (but a common FEC codec), and |
| // ensure it is rejected. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestCreateVideoAnswerWithOnlyFecCodecsCommon) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::vector f1_codecs = {CreateVideoCodec(96, "H264"), |
| CreateVideoCodec(118, "flexfec-03")}; |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::vector f2_codecs = {CreateVideoCodec(97, "VP8"), |
| CreateVideoCodec(118, "flexfec-03")}; |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* vc = answer->GetContentByName("video"); |
| ASSERT_TRUE(vc); |
| EXPECT_TRUE(vc->rejected); |
| } |
| |
| // The use_sctpmap flag should be set in an Sctp DataContentDescription by |
| // default. The answer's use_sctpmap flag should match the offer's. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateDataAnswerUsesSctpmap) { |
| MediaSessionOptions opts; |
| AddDataSection(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| ContentInfo* dc_offer = offer->GetContentByName("data"); |
| ASSERT_TRUE(dc_offer); |
| SctpDataContentDescription* dcd_offer = |
| dc_offer->media_description()->as_sctp(); |
| EXPECT_TRUE(dcd_offer->use_sctpmap()); |
| |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* dc_answer = answer->GetContentByName("data"); |
| ASSERT_TRUE(dc_answer); |
| const SctpDataContentDescription* dcd_answer = |
| dc_answer->media_description()->as_sctp(); |
| EXPECT_TRUE(dcd_answer->use_sctpmap()); |
| } |
| |
| // The answer's use_sctpmap flag should match the offer's. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateDataAnswerWithoutSctpmap) { |
| MediaSessionOptions opts; |
| AddDataSection(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| ContentInfo* dc_offer = offer->GetContentByName("data"); |
| ASSERT_TRUE(dc_offer); |
| SctpDataContentDescription* dcd_offer = |
| dc_offer->media_description()->as_sctp(); |
| dcd_offer->set_use_sctpmap(false); |
| |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* dc_answer = answer->GetContentByName("data"); |
| ASSERT_TRUE(dc_answer); |
| const SctpDataContentDescription* dcd_answer = |
| dc_answer->media_description()->as_sctp(); |
| EXPECT_FALSE(dcd_answer->use_sctpmap()); |
| } |
| |
| // Test that a valid answer will be created for "DTLS/SCTP", "UDP/DTLS/SCTP" |
| // and "TCP/DTLS/SCTP" offers. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestCreateDataAnswerToDifferentOfferedProtos) { |
| MediaSessionOptions opts; |
| AddDataSection(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| ContentInfo* dc_offer = offer->GetContentByName("data"); |
| ASSERT_TRUE(dc_offer); |
| SctpDataContentDescription* dcd_offer = |
| dc_offer->media_description()->as_sctp(); |
| ASSERT_TRUE(dcd_offer); |
| |
| std::vector<std::string> protos = {"DTLS/SCTP", "UDP/DTLS/SCTP", |
| "TCP/DTLS/SCTP"}; |
| for (const std::string& proto : protos) { |
| dcd_offer->set_protocol(proto); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* dc_answer = answer->GetContentByName("data"); |
| ASSERT_TRUE(dc_answer); |
| const SctpDataContentDescription* dcd_answer = |
| dc_answer->media_description()->as_sctp(); |
| EXPECT_FALSE(dc_answer->rejected); |
| EXPECT_EQ(proto, dcd_answer->protocol()); |
| } |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestCreateDataAnswerToOfferWithDefinedMessageSize) { |
| MediaSessionOptions opts; |
| AddDataSection(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| ContentInfo* dc_offer = offer->GetContentByName("data"); |
| ASSERT_TRUE(dc_offer); |
| SctpDataContentDescription* dcd_offer = |
| dc_offer->media_description()->as_sctp(); |
| ASSERT_TRUE(dcd_offer); |
| dcd_offer->set_max_message_size(1234); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* dc_answer = answer->GetContentByName("data"); |
| ASSERT_TRUE(dc_answer); |
| const SctpDataContentDescription* dcd_answer = |
| dc_answer->media_description()->as_sctp(); |
| EXPECT_FALSE(dc_answer->rejected); |
| EXPECT_EQ(1234, dcd_answer->max_message_size()); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestCreateDataAnswerToOfferWithZeroMessageSize) { |
| MediaSessionOptions opts; |
| AddDataSection(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| ContentInfo* dc_offer = offer->GetContentByName("data"); |
| ASSERT_TRUE(dc_offer); |
| SctpDataContentDescription* dcd_offer = |
| dc_offer->media_description()->as_sctp(); |
| ASSERT_TRUE(dcd_offer); |
| dcd_offer->set_max_message_size(0); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* dc_answer = answer->GetContentByName("data"); |
| ASSERT_TRUE(dc_answer); |
| const SctpDataContentDescription* dcd_answer = |
| dc_answer->media_description()->as_sctp(); |
| EXPECT_FALSE(dc_answer->rejected); |
| EXPECT_EQ(kSctpSendBufferSize, dcd_answer->max_message_size()); |
| } |
| |
| // Verifies that the order of the media contents in the offer is preserved in |
| // the answer. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateAnswerContentOrder) { |
| MediaSessionOptions opts; |
| |
| // Creates a data only offer. |
| AddDataSection(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer1( |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue()); |
| ASSERT_TRUE(offer1.get()); |
| |
| // Appends audio to the offer. |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer2( |
| f1_.CreateOfferOrError(opts, offer1.get()).MoveValue()); |
| ASSERT_TRUE(offer2.get()); |
| |
| // Appends video to the offer. |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer3( |
| f1_.CreateOfferOrError(opts, offer2.get()).MoveValue()); |
| ASSERT_TRUE(offer3.get()); |
| |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer3.get(), opts, nullptr).MoveValue(); |
| ASSERT_TRUE(answer.get()); |
| EXPECT_EQ(3u, answer->contents().size()); |
| EXPECT_TRUE(IsMediaContentOfType(&answer->contents()[0], MEDIA_TYPE_DATA)); |
| EXPECT_TRUE(IsMediaContentOfType(&answer->contents()[1], MEDIA_TYPE_AUDIO)); |
| EXPECT_TRUE(IsMediaContentOfType(&answer->contents()[2], MEDIA_TYPE_VIDEO)); |
| } |
| |
| // TODO(deadbeef): Extend these tests to ensure the correct direction with other |
| // answerer settings. |
| |
| // This test that the media direction is set to send/receive in an answer if |
| // the offer is send receive. |
| TEST_F(MediaSessionDescriptionFactoryTest, CreateAnswerToSendReceiveOffer) { |
| TestMediaDirectionInAnswer(RtpTransceiverDirection::kSendRecv, |
| RtpTransceiverDirection::kSendRecv); |
| } |
| |
| // This test that the media direction is set to receive only in an answer if |
| // the offer is send only. |
| TEST_F(MediaSessionDescriptionFactoryTest, CreateAnswerToSendOnlyOffer) { |
| TestMediaDirectionInAnswer(RtpTransceiverDirection::kSendOnly, |
| RtpTransceiverDirection::kRecvOnly); |
| } |
| |
| // This test that the media direction is set to send only in an answer if |
| // the offer is recv only. |
| TEST_F(MediaSessionDescriptionFactoryTest, CreateAnswerToRecvOnlyOffer) { |
| TestMediaDirectionInAnswer(RtpTransceiverDirection::kRecvOnly, |
| RtpTransceiverDirection::kSendOnly); |
| } |
| |
| // This test that the media direction is set to inactive in an answer if |
| // the offer is inactive. |
| TEST_F(MediaSessionDescriptionFactoryTest, CreateAnswerToInactiveOffer) { |
| TestMediaDirectionInAnswer(RtpTransceiverDirection::kInactive, |
| RtpTransceiverDirection::kInactive); |
| } |
| |
| // Test that the media protocol is RTP/AVPF if DTLS is disabled. |
| TEST_F(MediaSessionDescriptionFactoryTest, AudioOfferAnswerWithCryptoDisabled) { |
| MediaSessionOptions opts = CreateAudioMediaSession(); |
| tdf1_.SetInsecureForTesting(); |
| tdf1_.set_certificate(nullptr); |
| tdf2_.SetInsecureForTesting(); |
| tdf2_.set_certificate(nullptr); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| const AudioContentDescription* offer_acd = |
| GetFirstAudioContentDescription(offer.get()); |
| ASSERT_TRUE(offer_acd); |
| EXPECT_EQ(kMediaProtocolAvpf, offer_acd->protocol()); |
| |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| const ContentInfo* ac_answer = answer->GetContentByName("audio"); |
| ASSERT_TRUE(ac_answer); |
| EXPECT_FALSE(ac_answer->rejected); |
| |
| const AudioContentDescription* answer_acd = |
| GetFirstAudioContentDescription(answer.get()); |
| ASSERT_TRUE(answer_acd); |
| EXPECT_EQ(kMediaProtocolAvpf, answer_acd->protocol()); |
| } |
| |
| // Create a video offer and answer and ensure the RTP header extensions |
| // matches what we expect. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestOfferAnswerWithRtpExtensions) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension1), |
| MAKE_VECTOR(kVideoRtpExtension1), &opts); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension2), |
| MAKE_VECTOR(kVideoRtpExtension2), &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtension1), |
| GetFirstAudioContentDescription(offer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kVideoRtpExtension1), |
| GetFirstVideoContentDescription(offer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtensionAnswer), |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kVideoRtpExtensionAnswer), |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions()); |
| } |
| |
| // Create a audio/video offer and answer and ensure that the |
| // TransportSequenceNumber RTP v1 and v2 header extensions are handled |
| // correctly. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithTransportSequenceNumberV1LocalAndV1InOffer) { |
| TestTransportSequenceNumberNegotiation( |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01), // Local. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01), // Offer. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01)); // Expected answer. |
| } |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithTransportSequenceNumberV1LocalAndV1V2InOffer) { |
| TestTransportSequenceNumberNegotiation( |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01), // Local. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01And02), // Offer. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01)); // Expected answer. |
| } |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithTransportSequenceNumberV1LocalAndV2InOffer) { |
| TestTransportSequenceNumberNegotiation( |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01), // Local. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber02), // Offer. |
| {}); // Expected answer. |
| } |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithTransportSequenceNumberV2LocalAndV1InOffer) { |
| TestTransportSequenceNumberNegotiation( |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber02), // Local. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01), // Offer. |
| {}); // Expected answer. |
| } |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithTransportSequenceNumberV2LocalAndV1V2InOffer) { |
| TestTransportSequenceNumberNegotiation( |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber02), // Local. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01And02), // Offer. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber02)); // Expected answer. |
| } |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithTransportSequenceNumberV2LocalAndV2InOffer) { |
| TestTransportSequenceNumberNegotiation( |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber02), // Local. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber02), // Offer. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber02)); // Expected answer. |
| } |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithTransportSequenceNumberV1V2LocalAndV1InOffer) { |
| TestTransportSequenceNumberNegotiation( |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01And02), // Local. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01), // Offer. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01)); // Expected answer. |
| } |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithTransportSequenceNumberV1V2LocalAndV2InOffer) { |
| TestTransportSequenceNumberNegotiation( |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01And02), // Local. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber02), // Offer. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber02)); // Expected answer. |
| } |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithTransportSequenceNumberV1V2LocalAndV1V2InOffer) { |
| TestTransportSequenceNumberNegotiation( |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01And02), // Local. |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01And02), // Offer. |
| MAKE_VECTOR( |
| kRtpExtensionTransportSequenceNumber01And02)); // Expected answer. |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestNegotiateFrameDescriptorWhenUnexposedLocally) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| SetAudioVideoRtpHeaderExtensions( |
| MAKE_VECTOR(kRtpExtensionGenericFrameDescriptorUri00), |
| MAKE_VECTOR(kRtpExtensionGenericFrameDescriptorUri00), &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| SetAudioVideoRtpHeaderExtensions( |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01), |
| MAKE_VECTOR(kRtpExtensionTransportSequenceNumber01), &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions(), |
| ElementsAreArray(kRtpExtensionGenericFrameDescriptorUri00)); |
| EXPECT_THAT( |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions(), |
| ElementsAreArray(kRtpExtensionGenericFrameDescriptorUri00)); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestNegotiateFrameDescriptorWhenExposedLocally) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| SetAudioVideoRtpHeaderExtensions( |
| MAKE_VECTOR(kRtpExtensionGenericFrameDescriptorUri00), |
| MAKE_VECTOR(kRtpExtensionGenericFrameDescriptorUri00), &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions(), |
| ElementsAreArray(kRtpExtensionGenericFrameDescriptorUri00)); |
| EXPECT_THAT( |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions(), |
| ElementsAreArray(kRtpExtensionGenericFrameDescriptorUri00)); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| NegotiateDependencyDescriptorWhenUnexposedLocally) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| RtpExtension offer_dd(RtpExtension::kDependencyDescriptorUri, 7); |
| SetAudioVideoRtpHeaderExtensions({}, {offer_dd}, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| RtpExtension local_tsn(RtpExtension::kTransportSequenceNumberUri, 5); |
| SetAudioVideoRtpHeaderExtensions({}, {local_tsn}, &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions(), |
| ElementsAre(offer_dd)); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| NegotiateDependencyDescriptorWhenExposedLocally) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| RtpExtension offer_dd(RtpExtension::kDependencyDescriptorUri, 7); |
| RtpExtension local_dd(RtpExtension::kDependencyDescriptorUri, 5); |
| SetAudioVideoRtpHeaderExtensions({}, {offer_dd}, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| SetAudioVideoRtpHeaderExtensions({}, {local_dd}, &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions(), |
| ElementsAre(offer_dd)); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| NegotiateAbsoluteCaptureTimeWhenUnexposedLocally) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| const RtpHeaderExtensions offered_extensions = { |
| RtpExtension(RtpExtension::kAbsoluteCaptureTimeUri, 7)}; |
| const RtpHeaderExtensions local_extensions = { |
| RtpExtension(RtpExtension::kTransportSequenceNumberUri, 5)}; |
| SetAudioVideoRtpHeaderExtensions(offered_extensions, offered_extensions, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| SetAudioVideoRtpHeaderExtensions(local_extensions, local_extensions, &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions(), |
| ElementsAreArray(offered_extensions)); |
| EXPECT_THAT( |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions(), |
| ElementsAreArray(offered_extensions)); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| NegotiateAbsoluteCaptureTimeWhenExposedLocally) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| const RtpHeaderExtensions offered_extensions = { |
| RtpExtension(RtpExtension::kAbsoluteCaptureTimeUri, 7)}; |
| const RtpHeaderExtensions local_extensions = { |
| RtpExtension(RtpExtension::kAbsoluteCaptureTimeUri, 5)}; |
| SetAudioVideoRtpHeaderExtensions(offered_extensions, offered_extensions, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| SetAudioVideoRtpHeaderExtensions(local_extensions, local_extensions, &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions(), |
| ElementsAreArray(offered_extensions)); |
| EXPECT_THAT( |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions(), |
| ElementsAreArray(offered_extensions)); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| DoNotNegotiateAbsoluteCaptureTimeWhenNotOffered) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| const RtpHeaderExtensions offered_extensions = { |
| RtpExtension(RtpExtension::kTransportSequenceNumberUri, 7)}; |
| const RtpHeaderExtensions local_extensions = { |
| RtpExtension(RtpExtension::kAbsoluteCaptureTimeUri, 5)}; |
| SetAudioVideoRtpHeaderExtensions(offered_extensions, offered_extensions, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| SetAudioVideoRtpHeaderExtensions(local_extensions, local_extensions, &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions(), |
| IsEmpty()); |
| EXPECT_THAT( |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions(), |
| IsEmpty()); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| OffersUnstoppedExtensionsWithAudioVideoExtensionStopped) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri1", 1, |
| RtpTransceiverDirection::kStopped), |
| webrtc::RtpHeaderExtensionCapability("uri2", 3, |
| RtpTransceiverDirection::kSendOnly)}; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri1", 1, |
| RtpTransceiverDirection::kStopped), |
| webrtc::RtpHeaderExtensionCapability("uri3", 7, |
| RtpTransceiverDirection::kSendOnly)}; |
| auto offer = f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| offer->contents(), |
| ElementsAre( |
| Property(&ContentInfo::media_description, |
| Pointee(Property( |
| &MediaContentDescription::rtp_header_extensions, |
| ElementsAre(Field(&RtpExtension::uri, "uri2"))))), |
| Property(&ContentInfo::media_description, |
| Pointee(Property( |
| &MediaContentDescription::rtp_header_extensions, |
| ElementsAre(Field(&RtpExtension::uri, "uri3"))))))); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| OffersUnstoppedExtensionsWithAudioExtensionStopped) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri1", 1, |
| RtpTransceiverDirection::kSendOnly), |
| webrtc::RtpHeaderExtensionCapability("uri2", 3, |
| RtpTransceiverDirection::kStopped)}; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri42", 42, |
| RtpTransceiverDirection::kSendRecv), |
| webrtc::RtpHeaderExtensionCapability("uri3", 7, |
| RtpTransceiverDirection::kSendOnly)}; |
| auto offer = f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| offer->contents(), |
| ElementsAre( |
| Property(&ContentInfo::media_description, |
| Pointee(Property( |
| &MediaContentDescription::rtp_header_extensions, |
| ElementsAre(Field(&RtpExtension::uri, "uri1"))))), |
| Property( |
| &ContentInfo::media_description, |
| Pointee(Property( |
| &MediaContentDescription::rtp_header_extensions, |
| UnorderedElementsAre(Field(&RtpExtension::uri, "uri3"), |
| Field(&RtpExtension::uri, "uri42"))))))); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| OffersUnstoppedExtensionsWithVideoExtensionStopped) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri1", 5, |
| RtpTransceiverDirection::kSendOnly), |
| webrtc::RtpHeaderExtensionCapability("uri2", 7, |
| RtpTransceiverDirection::kSendRecv)}; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri42", 42, |
| RtpTransceiverDirection::kSendRecv), |
| webrtc::RtpHeaderExtensionCapability("uri3", 7, |
| RtpTransceiverDirection::kStopped)}; |
| auto offer = f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| offer->contents(), |
| ElementsAre( |
| Property( |
| &ContentInfo::media_description, |
| Pointee(Property( |
| &MediaContentDescription::rtp_header_extensions, |
| UnorderedElementsAre(Field(&RtpExtension::uri, "uri1"), |
| Field(&RtpExtension::uri, "uri2"))))), |
| Property(&ContentInfo::media_description, |
| Pointee(Property( |
| &MediaContentDescription::rtp_header_extensions, |
| ElementsAre(Field(&RtpExtension::uri, "uri42"))))))); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, AnswersUnstoppedExtensions) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri1", 4, |
| RtpTransceiverDirection::kStopped), |
| webrtc::RtpHeaderExtensionCapability("uri2", 3, |
| RtpTransceiverDirection::kSendOnly), |
| webrtc::RtpHeaderExtensionCapability("uri3", 2, |
| RtpTransceiverDirection::kRecvOnly), |
| webrtc::RtpHeaderExtensionCapability("uri4", 1, |
| RtpTransceiverDirection::kSendRecv)}; |
| auto offer = f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri1", 4, |
| RtpTransceiverDirection::kSendOnly), |
| webrtc::RtpHeaderExtensionCapability("uri2", 3, |
| RtpTransceiverDirection::kRecvOnly), |
| webrtc::RtpHeaderExtensionCapability("uri3", 2, |
| RtpTransceiverDirection::kStopped), |
| webrtc::RtpHeaderExtensionCapability("uri4", 1, |
| RtpTransceiverDirection::kSendRecv)}; |
| auto answer = f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| EXPECT_THAT( |
| answer->contents(), |
| ElementsAre(Property( |
| &ContentInfo::media_description, |
| Pointee(Property(&MediaContentDescription::rtp_header_extensions, |
| ElementsAre(Field(&RtpExtension::uri, "uri2"), |
| Field(&RtpExtension::uri, "uri4"))))))); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| AppendsUnstoppedExtensionsToCurrentDescription) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri1", 1, |
| RtpTransceiverDirection::kSendRecv)}; |
| auto offer = f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri1", 2, |
| RtpTransceiverDirection::kSendRecv), |
| webrtc::RtpHeaderExtensionCapability("uri2", 3, |
| RtpTransceiverDirection::kRecvOnly), |
| webrtc::RtpHeaderExtensionCapability("uri3", 5, |
| RtpTransceiverDirection::kStopped), |
| webrtc::RtpHeaderExtensionCapability("uri4", 6, |
| RtpTransceiverDirection::kSendRecv)}; |
| auto offer2 = f1_.CreateOfferOrError(opts, offer.get()).MoveValue(); |
| EXPECT_THAT( |
| offer2->contents(), |
| ElementsAre(Property( |
| &ContentInfo::media_description, |
| Pointee(Property(&MediaContentDescription::rtp_header_extensions, |
| ElementsAre(Field(&RtpExtension::uri, "uri1"), |
| Field(&RtpExtension::uri, "uri2"), |
| Field(&RtpExtension::uri, "uri4"))))))); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| AllowsStoppedExtensionsToBeRemovedFromSubsequentOffer) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri1", 1, |
| RtpTransceiverDirection::kSendRecv), |
| webrtc::RtpHeaderExtensionCapability("uri2", 2, |
| RtpTransceiverDirection::kSendRecv)}; |
| auto offer = f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| |
| // Check that a subsequent offer after setting "uri2" to stopped no longer |
| // contains the extension. |
| opts.media_description_options.back().header_extensions = { |
| webrtc::RtpHeaderExtensionCapability("uri1", 1, |
| RtpTransceiverDirection::kSendRecv), |
| webrtc::RtpHeaderExtensionCapability("uri2", 2, |
| RtpTransceiverDirection::kStopped)}; |
| auto offer2 = f1_.CreateOfferOrError(opts, offer.get()).MoveValue(); |
| EXPECT_THAT( |
| offer2->contents(), |
| ElementsAre(Property( |
| &ContentInfo::media_description, |
| Pointee(Property(&MediaContentDescription::rtp_header_extensions, |
| ElementsAre(Field(&RtpExtension::uri, "uri1"))))))); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithEncryptedRtpExtensionsBoth) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| f1_.set_enable_encrypted_rtp_header_extensions(true); |
| f2_.set_enable_encrypted_rtp_header_extensions(true); |
| |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension1), |
| MAKE_VECTOR(kVideoRtpExtension1), &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension2), |
| MAKE_VECTOR(kVideoRtpExtension2), &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtensionEncrypted1), |
| GetFirstAudioContentDescription(offer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kVideoRtpExtensionEncrypted1), |
| GetFirstVideoContentDescription(offer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtensionEncryptedAnswer), |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kVideoRtpExtensionEncryptedAnswer), |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions()); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithEncryptedRtpExtensionsOffer) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| f1_.set_enable_encrypted_rtp_header_extensions(true); |
| |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension1), |
| MAKE_VECTOR(kVideoRtpExtension1), &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension2), |
| MAKE_VECTOR(kVideoRtpExtension2), &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtensionEncrypted1), |
| GetFirstAudioContentDescription(offer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kVideoRtpExtensionEncrypted1), |
| GetFirstVideoContentDescription(offer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtensionAnswer), |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kVideoRtpExtensionAnswer), |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions()); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestOfferAnswerWithEncryptedRtpExtensionsAnswer) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| f2_.set_enable_encrypted_rtp_header_extensions(true); |
| |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension1), |
| MAKE_VECTOR(kVideoRtpExtension1), &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension2), |
| MAKE_VECTOR(kVideoRtpExtension2), &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtension1), |
| GetFirstAudioContentDescription(offer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kVideoRtpExtension1), |
| GetFirstVideoContentDescription(offer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtensionAnswer), |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kVideoRtpExtensionAnswer), |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions()); |
| } |
| |
| // Create an audio, video, data answer without legacy StreamParams. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestCreateAnswerWithoutLegacyStreams) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* ac = answer->GetContentByName("audio"); |
| const ContentInfo* vc = answer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| const MediaContentDescription* acd = ac->media_description(); |
| const MediaContentDescription* vcd = vc->media_description(); |
| |
| EXPECT_FALSE(acd->has_ssrcs()); // No StreamParams. |
| EXPECT_FALSE(vcd->has_ssrcs()); // No StreamParams. |
| } |
| |
| // Create a typical video answer, and ensure it matches what we expect. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateVideoAnswerRtcpMux) { |
| MediaSessionOptions offer_opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kSendRecv, &offer_opts); |
| |
| MediaSessionOptions answer_opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kSendRecv, &answer_opts); |
| |
| std::unique_ptr<SessionDescription> offer; |
| std::unique_ptr<SessionDescription> answer; |
| |
| offer_opts.rtcp_mux_enabled = true; |
| answer_opts.rtcp_mux_enabled = true; |
| offer = f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| answer = |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, nullptr).MoveValue(); |
| ASSERT_TRUE(GetFirstAudioContentDescription(offer.get())); |
| ASSERT_TRUE(GetFirstVideoContentDescription(offer.get())); |
| ASSERT_TRUE(GetFirstAudioContentDescription(answer.get())); |
| ASSERT_TRUE(GetFirstVideoContentDescription(answer.get())); |
| EXPECT_TRUE(GetFirstAudioContentDescription(offer.get())->rtcp_mux()); |
| EXPECT_TRUE(GetFirstVideoContentDescription(offer.get())->rtcp_mux()); |
| EXPECT_TRUE(GetFirstAudioContentDescription(answer.get())->rtcp_mux()); |
| EXPECT_TRUE(GetFirstVideoContentDescription(answer.get())->rtcp_mux()); |
| |
| offer_opts.rtcp_mux_enabled = true; |
| answer_opts.rtcp_mux_enabled = false; |
| offer = f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| answer = |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, nullptr).MoveValue(); |
| ASSERT_TRUE(GetFirstAudioContentDescription(offer.get())); |
| ASSERT_TRUE(GetFirstVideoContentDescription(offer.get())); |
| ASSERT_TRUE(GetFirstAudioContentDescription(answer.get())); |
| ASSERT_TRUE(GetFirstVideoContentDescription(answer.get())); |
| EXPECT_TRUE(GetFirstAudioContentDescription(offer.get())->rtcp_mux()); |
| EXPECT_TRUE(GetFirstVideoContentDescription(offer.get())->rtcp_mux()); |
| EXPECT_FALSE(GetFirstAudioContentDescription(answer.get())->rtcp_mux()); |
| EXPECT_FALSE(GetFirstVideoContentDescription(answer.get())->rtcp_mux()); |
| |
| offer_opts.rtcp_mux_enabled = false; |
| answer_opts.rtcp_mux_enabled = true; |
| offer = f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| answer = |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, nullptr).MoveValue(); |
| ASSERT_TRUE(GetFirstAudioContentDescription(offer.get())); |
| ASSERT_TRUE(GetFirstVideoContentDescription(offer.get())); |
| ASSERT_TRUE(GetFirstAudioContentDescription(answer.get())); |
| ASSERT_TRUE(GetFirstVideoContentDescription(answer.get())); |
| EXPECT_FALSE(GetFirstAudioContentDescription(offer.get())->rtcp_mux()); |
| EXPECT_FALSE(GetFirstVideoContentDescription(offer.get())->rtcp_mux()); |
| EXPECT_FALSE(GetFirstAudioContentDescription(answer.get())->rtcp_mux()); |
| EXPECT_FALSE(GetFirstVideoContentDescription(answer.get())->rtcp_mux()); |
| |
| offer_opts.rtcp_mux_enabled = false; |
| answer_opts.rtcp_mux_enabled = false; |
| offer = f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| answer = |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, nullptr).MoveValue(); |
| ASSERT_TRUE(GetFirstAudioContentDescription(offer.get())); |
| ASSERT_TRUE(GetFirstVideoContentDescription(offer.get())); |
| ASSERT_TRUE(GetFirstAudioContentDescription(answer.get())); |
| ASSERT_TRUE(GetFirstVideoContentDescription(answer.get())); |
| EXPECT_FALSE(GetFirstAudioContentDescription(offer.get())->rtcp_mux()); |
| EXPECT_FALSE(GetFirstVideoContentDescription(offer.get())->rtcp_mux()); |
| EXPECT_FALSE(GetFirstAudioContentDescription(answer.get())->rtcp_mux()); |
| EXPECT_FALSE(GetFirstVideoContentDescription(answer.get())->rtcp_mux()); |
| } |
| |
| // Create an audio-only answer to a video offer. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateAudioAnswerToVideo) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| |
| opts.media_description_options[1].stopped = true; |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* ac = answer->GetContentByName("audio"); |
| const ContentInfo* vc = answer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| ASSERT_TRUE(vc->media_description()); |
| EXPECT_TRUE(vc->rejected); |
| } |
| |
| // Create an answer that rejects the contents which are rejected in the offer. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| CreateAnswerToOfferWithRejectedMedia) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| ContentInfo* ac = offer->GetContentByName("audio"); |
| ContentInfo* vc = offer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| ac->rejected = true; |
| vc->rejected = true; |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| ac = answer->GetContentByName("audio"); |
| vc = answer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| EXPECT_TRUE(ac->rejected); |
| EXPECT_TRUE(vc->rejected); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| OfferAndAnswerDoesNotHaveMixedByteSessionAttribute) { |
| MediaSessionOptions opts; |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, /*current_description=*/nullptr).MoveValue(); |
| offer->set_extmap_allow_mixed(false); |
| |
| std::unique_ptr<SessionDescription> answer( |
| f2_.CreateAnswerOrError(offer.get(), opts, |
| /*current_description=*/nullptr) |
| .MoveValue()); |
| |
| EXPECT_FALSE(answer->extmap_allow_mixed()); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| OfferAndAnswerHaveMixedByteSessionAttribute) { |
| MediaSessionOptions opts; |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, /*current_description=*/nullptr).MoveValue(); |
| offer->set_extmap_allow_mixed(true); |
| |
| std::unique_ptr<SessionDescription> answer_support( |
| f2_.CreateAnswerOrError(offer.get(), opts, |
| /*current_description=*/nullptr) |
| .MoveValue()); |
| |
| EXPECT_TRUE(answer_support->extmap_allow_mixed()); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| OfferAndAnswerDoesNotHaveMixedByteMediaAttributes) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, /*current_description=*/nullptr).MoveValue(); |
| offer->set_extmap_allow_mixed(false); |
| MediaContentDescription* audio_offer = |
| offer->GetContentDescriptionByName("audio"); |
| MediaContentDescription* video_offer = |
| offer->GetContentDescriptionByName("video"); |
| ASSERT_EQ(MediaContentDescription::kNo, |
| audio_offer->extmap_allow_mixed_enum()); |
| ASSERT_EQ(MediaContentDescription::kNo, |
| video_offer->extmap_allow_mixed_enum()); |
| |
| std::unique_ptr<SessionDescription> answer( |
| f2_.CreateAnswerOrError(offer.get(), opts, |
| /*current_description=*/nullptr) |
| .MoveValue()); |
| |
| MediaContentDescription* audio_answer = |
| answer->GetContentDescriptionByName("audio"); |
| MediaContentDescription* video_answer = |
| answer->GetContentDescriptionByName("video"); |
| EXPECT_EQ(MediaContentDescription::kNo, |
| audio_answer->extmap_allow_mixed_enum()); |
| EXPECT_EQ(MediaContentDescription::kNo, |
| video_answer->extmap_allow_mixed_enum()); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| OfferAndAnswerHaveSameMixedByteMediaAttributes) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, /*current_description=*/nullptr).MoveValue(); |
| offer->set_extmap_allow_mixed(false); |
| MediaContentDescription* audio_offer = |
| offer->GetContentDescriptionByName("audio"); |
| audio_offer->set_extmap_allow_mixed_enum(MediaContentDescription::kMedia); |
| MediaContentDescription* video_offer = |
| offer->GetContentDescriptionByName("video"); |
| video_offer->set_extmap_allow_mixed_enum(MediaContentDescription::kMedia); |
| |
| std::unique_ptr<SessionDescription> answer( |
| f2_.CreateAnswerOrError(offer.get(), opts, |
| /*current_description=*/nullptr) |
| .MoveValue()); |
| |
| MediaContentDescription* audio_answer = |
| answer->GetContentDescriptionByName("audio"); |
| MediaContentDescription* video_answer = |
| answer->GetContentDescriptionByName("video"); |
| EXPECT_EQ(MediaContentDescription::kMedia, |
| audio_answer->extmap_allow_mixed_enum()); |
| EXPECT_EQ(MediaContentDescription::kMedia, |
| video_answer->extmap_allow_mixed_enum()); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| OfferAndAnswerHaveDifferentMixedByteMediaAttributes) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kSendRecv, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, /*current_description=*/nullptr).MoveValue(); |
| offer->set_extmap_allow_mixed(false); |
| MediaContentDescription* audio_offer = |
| offer->GetContentDescriptionByName("audio"); |
| audio_offer->set_extmap_allow_mixed_enum(MediaContentDescription::kNo); |
| MediaContentDescription* video_offer = |
| offer->GetContentDescriptionByName("video"); |
| video_offer->set_extmap_allow_mixed_enum(MediaContentDescription::kMedia); |
| |
| std::unique_ptr<SessionDescription> answer( |
| f2_.CreateAnswerOrError(offer.get(), opts, |
| /*current_description=*/nullptr) |
| .MoveValue()); |
| |
| MediaContentDescription* audio_answer = |
| answer->GetContentDescriptionByName("audio"); |
| MediaContentDescription* video_answer = |
| answer->GetContentDescriptionByName("video"); |
| EXPECT_EQ(MediaContentDescription::kNo, |
| audio_answer->extmap_allow_mixed_enum()); |
| EXPECT_EQ(MediaContentDescription::kMedia, |
| video_answer->extmap_allow_mixed_enum()); |
| } |
| |
| // Create an audio and video offer with: |
| // - one video track |
| // - two audio tracks |
| // and ensure it matches what we expect. Also updates the initial offer by |
| // adding a new video track and replaces one of the audio tracks. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateMultiStreamVideoOffer) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kSendRecv, &opts); |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack1, |
| {kMediaStream1}, 1, &opts); |
| AttachSenderToMediaDescriptionOptions("audio", MEDIA_TYPE_AUDIO, kAudioTrack1, |
| {kMediaStream1}, 1, &opts); |
| AttachSenderToMediaDescriptionOptions("audio", MEDIA_TYPE_AUDIO, kAudioTrack2, |
| {kMediaStream1}, 1, &opts); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| |
| ASSERT_TRUE(offer.get()); |
| const ContentInfo* ac = offer->GetContentByName("audio"); |
| const ContentInfo* vc = offer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| const MediaContentDescription* acd = ac->media_description(); |
| const MediaContentDescription* vcd = vc->media_description(); |
| EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type()); |
| EXPECT_EQ(f1_.audio_sendrecv_codecs(), acd->codecs()); |
| |
| const StreamParamsVec& audio_streams = acd->streams(); |
| ASSERT_EQ(2U, audio_streams.size()); |
| EXPECT_EQ(audio_streams[0].cname, audio_streams[1].cname); |
| EXPECT_EQ(kAudioTrack1, audio_streams[0].id); |
| ASSERT_EQ(1U, audio_streams[0].ssrcs.size()); |
| EXPECT_NE(0U, audio_streams[0].ssrcs[0]); |
| EXPECT_EQ(kAudioTrack2, audio_streams[1].id); |
| ASSERT_EQ(1U, audio_streams[1].ssrcs.size()); |
| EXPECT_NE(0U, audio_streams[1].ssrcs[0]); |
| |
| EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // default bandwidth (auto) |
| EXPECT_TRUE(acd->rtcp_mux()); // rtcp-mux defaults on |
| |
| EXPECT_EQ(MEDIA_TYPE_VIDEO, vcd->type()); |
| EXPECT_EQ(f1_.video_sendrecv_codecs(), vcd->codecs()); |
| |
| const StreamParamsVec& video_streams = vcd->streams(); |
| ASSERT_EQ(1U, video_streams.size()); |
| EXPECT_EQ(video_streams[0].cname, audio_streams[0].cname); |
| EXPECT_EQ(kVideoTrack1, video_streams[0].id); |
| EXPECT_EQ(kAutoBandwidth, vcd->bandwidth()); // default bandwidth (auto) |
| EXPECT_TRUE(vcd->rtcp_mux()); // rtcp-mux defaults on |
| |
| // Update the offer. Add a new video track that is not synched to the |
| // other tracks and replace audio track 2 with audio track 3. |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack2, |
| {kMediaStream2}, 1, &opts); |
| DetachSenderFromMediaSection("audio", kAudioTrack2, &opts); |
| AttachSenderToMediaDescriptionOptions("audio", MEDIA_TYPE_AUDIO, kAudioTrack3, |
| {kMediaStream1}, 1, &opts); |
| std::unique_ptr<SessionDescription> updated_offer( |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue()); |
| |
| ASSERT_TRUE(updated_offer.get()); |
| ac = updated_offer->GetContentByName("audio"); |
| vc = updated_offer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| const MediaContentDescription* updated_acd = ac->media_description(); |
| const MediaContentDescription* updated_vcd = vc->media_description(); |
| |
| EXPECT_EQ(acd->type(), updated_acd->type()); |
| EXPECT_EQ(acd->codecs(), updated_acd->codecs()); |
| EXPECT_EQ(vcd->type(), updated_vcd->type()); |
| EXPECT_EQ(vcd->codecs(), updated_vcd->codecs()); |
| |
| const StreamParamsVec& updated_audio_streams = updated_acd->streams(); |
| ASSERT_EQ(2U, updated_audio_streams.size()); |
| EXPECT_EQ(audio_streams[0], updated_audio_streams[0]); |
| EXPECT_EQ(kAudioTrack3, updated_audio_streams[1].id); // New audio track. |
| ASSERT_EQ(1U, updated_audio_streams[1].ssrcs.size()); |
| EXPECT_NE(0U, updated_audio_streams[1].ssrcs[0]); |
| EXPECT_EQ(updated_audio_streams[0].cname, updated_audio_streams[1].cname); |
| |
| const StreamParamsVec& updated_video_streams = updated_vcd->streams(); |
| ASSERT_EQ(2U, updated_video_streams.size()); |
| EXPECT_EQ(video_streams[0], updated_video_streams[0]); |
| EXPECT_EQ(kVideoTrack2, updated_video_streams[1].id); |
| // All the media streams in one PeerConnection share one RTCP CNAME. |
| EXPECT_EQ(updated_video_streams[1].cname, updated_video_streams[0].cname); |
| } |
| |
| // Create an offer with simulcast video stream. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSimulcastVideoOffer) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| const int num_sim_layers = 3; |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack1, |
| {kMediaStream1}, num_sim_layers, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| |
| ASSERT_TRUE(offer.get()); |
| const ContentInfo* vc = offer->GetContentByName("video"); |
| ASSERT_TRUE(vc); |
| const MediaContentDescription* vcd = vc->media_description(); |
| |
| const StreamParamsVec& video_streams = vcd->streams(); |
| ASSERT_EQ(1U, video_streams.size()); |
| EXPECT_EQ(kVideoTrack1, video_streams[0].id); |
| const SsrcGroup* sim_ssrc_group = |
| video_streams[0].get_ssrc_group(kSimSsrcGroupSemantics); |
| ASSERT_TRUE(sim_ssrc_group); |
| EXPECT_EQ(static_cast<size_t>(num_sim_layers), sim_ssrc_group->ssrcs.size()); |
| } |
| |
| MATCHER(RidDescriptionEquals, "Verifies that two RidDescriptions are equal.") { |
| const RidDescription& rid1 = std::get<0>(arg); |
| const RidDescription& rid2 = std::get<1>(arg); |
| return rid1.rid == rid2.rid && rid1.direction == rid2.direction; |
| } |
| |
| void CheckSimulcastInSessionDescription( |
| const SessionDescription* description, |
| const std::string& content_name, |
| const std::vector<RidDescription>& send_rids, |
| const SimulcastLayerList& send_layers) { |
| ASSERT_NE(description, nullptr); |
| const ContentInfo* content = description->GetContentByName(content_name); |
| ASSERT_NE(content, nullptr); |
| const MediaContentDescription* cd = content->media_description(); |
| ASSERT_NE(cd, nullptr); |
| const StreamParamsVec& streams = cd->streams(); |
| ASSERT_THAT(streams, SizeIs(1)); |
| const StreamParams& stream = streams[0]; |
| ASSERT_THAT(stream.ssrcs, IsEmpty()); |
| EXPECT_TRUE(stream.has_rids()); |
| const std::vector<RidDescription> rids = stream.rids(); |
| |
| EXPECT_THAT(rids, Pointwise(RidDescriptionEquals(), send_rids)); |
| |
| EXPECT_TRUE(cd->HasSimulcast()); |
| const SimulcastDescription& simulcast = cd->simulcast_description(); |
| EXPECT_THAT(simulcast.send_layers(), SizeIs(send_layers.size())); |
| EXPECT_THAT(simulcast.send_layers(), Pointwise(Eq(), send_layers)); |
| |
| ASSERT_THAT(simulcast.receive_layers().GetAllLayers(), SizeIs(0)); |
| } |
| |
| // Create an offer with spec-compliant simulcast video stream. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateCompliantSimulcastOffer) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::vector<RidDescription> send_rids; |
| send_rids.push_back(RidDescription("f", RidDirection::kSend)); |
| send_rids.push_back(RidDescription("h", RidDirection::kSend)); |
| send_rids.push_back(RidDescription("q", RidDirection::kSend)); |
| SimulcastLayerList simulcast_layers; |
| simulcast_layers.AddLayer(SimulcastLayer(send_rids[0].rid, false)); |
| simulcast_layers.AddLayer(SimulcastLayer(send_rids[1].rid, true)); |
| simulcast_layers.AddLayer(SimulcastLayer(send_rids[2].rid, false)); |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack1, |
| {kMediaStream1}, send_rids, |
| simulcast_layers, 0, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| |
| CheckSimulcastInSessionDescription(offer.get(), "video", send_rids, |
| simulcast_layers); |
| } |
| |
| // Create an offer that signals RIDs (not SSRCs) without Simulcast. |
| // In this scenario, RIDs do not need to be negotiated (there is only one). |
| TEST_F(MediaSessionDescriptionFactoryTest, TestOfferWithRidsNoSimulcast) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| RidDescription rid("f", RidDirection::kSend); |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack1, |
| {kMediaStream1}, {rid}, |
| SimulcastLayerList(), 0, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| |
| ASSERT_NE(offer.get(), nullptr); |
| const ContentInfo* content = offer->GetContentByName("video"); |
| ASSERT_NE(content, nullptr); |
| const MediaContentDescription* cd = content->media_description(); |
| ASSERT_NE(cd, nullptr); |
| const StreamParamsVec& streams = cd->streams(); |
| ASSERT_THAT(streams, SizeIs(1)); |
| const StreamParams& stream = streams[0]; |
| ASSERT_THAT(stream.ssrcs, IsEmpty()); |
| EXPECT_FALSE(stream.has_rids()); |
| EXPECT_FALSE(cd->HasSimulcast()); |
| } |
| |
| // Create an answer with spec-compliant simulcast video stream. |
| // In this scenario, the SFU is the caller requesting that we send Simulcast. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateCompliantSimulcastAnswer) { |
| MediaSessionOptions offer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &offer_opts); |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack1, |
| {kMediaStream1}, 1, &offer_opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| |
| MediaSessionOptions answer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &answer_opts); |
| |
| std::vector<RidDescription> rid_descriptions{ |
| RidDescription("f", RidDirection::kSend), |
| RidDescription("h", RidDirection::kSend), |
| RidDescription("q", RidDirection::kSend), |
| }; |
| SimulcastLayerList simulcast_layers; |
| simulcast_layers.AddLayer(SimulcastLayer(rid_descriptions[0].rid, false)); |
| simulcast_layers.AddLayer(SimulcastLayer(rid_descriptions[1].rid, true)); |
| simulcast_layers.AddLayer(SimulcastLayer(rid_descriptions[2].rid, false)); |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack1, |
| {kMediaStream1}, rid_descriptions, |
| simulcast_layers, 0, &answer_opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, nullptr).MoveValue(); |
| |
| CheckSimulcastInSessionDescription(answer.get(), "video", rid_descriptions, |
| simulcast_layers); |
| } |
| |
| // Create an answer that signals RIDs (not SSRCs) without Simulcast. |
| // In this scenario, RIDs do not need to be negotiated (there is only one). |
| // Note that RID Direction is not the same as the transceiver direction. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestAnswerWithRidsNoSimulcast) { |
| MediaSessionOptions offer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &offer_opts); |
| RidDescription rid_offer("f", RidDirection::kSend); |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack1, |
| {kMediaStream1}, {rid_offer}, |
| SimulcastLayerList(), 0, &offer_opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| |
| MediaSessionOptions answer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &answer_opts); |
| |
| RidDescription rid_answer("f", RidDirection::kReceive); |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack1, |
| {kMediaStream1}, {rid_answer}, |
| SimulcastLayerList(), 0, &answer_opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, nullptr).MoveValue(); |
| |
| ASSERT_NE(answer.get(), nullptr); |
| const ContentInfo* content = offer->GetContentByName("video"); |
| ASSERT_NE(content, nullptr); |
| const MediaContentDescription* cd = content->media_description(); |
| ASSERT_NE(cd, nullptr); |
| const StreamParamsVec& streams = cd->streams(); |
| ASSERT_THAT(streams, SizeIs(1)); |
| const StreamParams& stream = streams[0]; |
| ASSERT_THAT(stream.ssrcs, IsEmpty()); |
| EXPECT_FALSE(stream.has_rids()); |
| EXPECT_FALSE(cd->HasSimulcast()); |
| } |
| |
| // Create an audio and video answer to a standard video offer with: |
| // - one video track |
| // - two audio tracks |
| // - two data tracks |
| // and ensure it matches what we expect. Also updates the initial answer by |
| // adding a new video track and removes one of the audio tracks. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCreateMultiStreamVideoAnswer) { |
| MediaSessionOptions offer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &offer_opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &offer_opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| |
| MediaSessionOptions answer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &answer_opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &answer_opts); |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack1, |
| {kMediaStream1}, 1, &answer_opts); |
| AttachSenderToMediaDescriptionOptions("audio", MEDIA_TYPE_AUDIO, kAudioTrack1, |
| {kMediaStream1}, 1, &answer_opts); |
| AttachSenderToMediaDescriptionOptions("audio", MEDIA_TYPE_AUDIO, kAudioTrack2, |
| {kMediaStream1}, 1, &answer_opts); |
| |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, nullptr).MoveValue(); |
| |
| ASSERT_TRUE(answer.get()); |
| const ContentInfo* ac = answer->GetContentByName("audio"); |
| const ContentInfo* vc = answer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| const MediaContentDescription* acd = ac->media_description(); |
| const MediaContentDescription* vcd = vc->media_description(); |
| |
| EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type()); |
| EXPECT_THAT(acd->codecs(), ElementsAreArray(kAudioCodecsAnswer)); |
| |
| const StreamParamsVec& audio_streams = acd->streams(); |
| ASSERT_EQ(2U, audio_streams.size()); |
| EXPECT_TRUE(audio_streams[0].cname == audio_streams[1].cname); |
| EXPECT_EQ(kAudioTrack1, audio_streams[0].id); |
| ASSERT_EQ(1U, audio_streams[0].ssrcs.size()); |
| EXPECT_NE(0U, audio_streams[0].ssrcs[0]); |
| EXPECT_EQ(kAudioTrack2, audio_streams[1].id); |
| ASSERT_EQ(1U, audio_streams[1].ssrcs.size()); |
| EXPECT_NE(0U, audio_streams[1].ssrcs[0]); |
| |
| EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // default bandwidth (auto) |
| EXPECT_TRUE(acd->rtcp_mux()); // rtcp-mux defaults on |
| |
| EXPECT_EQ(MEDIA_TYPE_VIDEO, vcd->type()); |
| EXPECT_THAT(vcd->codecs(), ElementsAreArray(kVideoCodecsAnswer)); |
| |
| const StreamParamsVec& video_streams = vcd->streams(); |
| ASSERT_EQ(1U, video_streams.size()); |
| EXPECT_EQ(video_streams[0].cname, audio_streams[0].cname); |
| EXPECT_EQ(kVideoTrack1, video_streams[0].id); |
| EXPECT_EQ(kAutoBandwidth, vcd->bandwidth()); // default bandwidth (auto) |
| EXPECT_TRUE(vcd->rtcp_mux()); // rtcp-mux defaults on |
| |
| // Update the answer. Add a new video track that is not synched to the |
| // other tracks and remove 1 audio track. |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, kVideoTrack2, |
| {kMediaStream2}, 1, &answer_opts); |
| DetachSenderFromMediaSection("audio", kAudioTrack2, &answer_opts); |
| std::unique_ptr<SessionDescription> updated_answer( |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, answer.get()) |
| .MoveValue()); |
| |
| ASSERT_TRUE(updated_answer.get()); |
| ac = updated_answer->GetContentByName("audio"); |
| vc = updated_answer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| const MediaContentDescription* updated_acd = ac->media_description(); |
| const MediaContentDescription* updated_vcd = vc->media_description(); |
| |
| EXPECT_EQ(acd->type(), updated_acd->type()); |
| EXPECT_EQ(acd->codecs(), updated_acd->codecs()); |
| EXPECT_EQ(vcd->type(), updated_vcd->type()); |
| EXPECT_EQ(vcd->codecs(), updated_vcd->codecs()); |
| |
| const StreamParamsVec& updated_audio_streams = updated_acd->streams(); |
| ASSERT_EQ(1U, updated_audio_streams.size()); |
| EXPECT_TRUE(audio_streams[0] == updated_audio_streams[0]); |
| |
| const StreamParamsVec& updated_video_streams = updated_vcd->streams(); |
| ASSERT_EQ(2U, updated_video_streams.size()); |
| EXPECT_EQ(video_streams[0], updated_video_streams[0]); |
| EXPECT_EQ(kVideoTrack2, updated_video_streams[1].id); |
| // All media streams in one PeerConnection share one CNAME. |
| EXPECT_EQ(updated_video_streams[1].cname, updated_video_streams[0].cname); |
| } |
| |
| // Create an updated offer after creating an answer to the original offer and |
| // verify that the codecs that were part of the original answer are not changed |
| // in the updated offer. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| RespondentCreatesOfferAfterCreatingAnswer) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| const AudioContentDescription* acd = |
| GetFirstAudioContentDescription(answer.get()); |
| EXPECT_THAT(acd->codecs(), ElementsAreArray(kAudioCodecsAnswer)); |
| |
| const VideoContentDescription* vcd = |
| GetFirstVideoContentDescription(answer.get()); |
| EXPECT_THAT(vcd->codecs(), ElementsAreArray(kVideoCodecsAnswer)); |
| |
| std::unique_ptr<SessionDescription> updated_offer( |
| f2_.CreateOfferOrError(opts, answer.get()).MoveValue()); |
| |
| // The expected audio codecs are the common audio codecs from the first |
| // offer/answer exchange plus the audio codecs only `f2_` offer, sorted in |
| // preference order. |
| // TODO(wu): `updated_offer` should not include the codec |
| // (i.e. `kAudioCodecs2[0]`) the other side doesn't support. |
| const AudioCodec kUpdatedAudioCodecOffer[] = { |
| kAudioCodecsAnswer[0], |
| kAudioCodecsAnswer[1], |
| kAudioCodecs2[0], |
| }; |
| |
| // The expected video codecs are the common video codecs from the first |
| // offer/answer exchange plus the video codecs only `f2_` offer, sorted in |
| // preference order. |
| const VideoCodec kUpdatedVideoCodecOffer[] = { |
| kVideoCodecsAnswer[0], |
| kVideoCodecs2[1], |
| }; |
| |
| const AudioContentDescription* updated_acd = |
| GetFirstAudioContentDescription(updated_offer.get()); |
| EXPECT_THAT(updated_acd->codecs(), ElementsAreArray(kUpdatedAudioCodecOffer)); |
| |
| const VideoContentDescription* updated_vcd = |
| GetFirstVideoContentDescription(updated_offer.get()); |
| EXPECT_THAT(updated_vcd->codecs(), ElementsAreArray(kUpdatedVideoCodecOffer)); |
| } |
| |
| // Test that a reoffer does not reuse audio codecs from a previous media section |
| // that is being recycled. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| ReOfferDoesNotReUseRecycledAudioCodecs) { |
| f1_.set_video_codecs({}, {}); |
| f2_.set_video_codecs({}, {}); |
| |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "a0", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| // Recycle the media section by changing its mid. |
| opts.media_description_options[0].mid = "a1"; |
| std::unique_ptr<SessionDescription> reoffer = |
| f2_.CreateOfferOrError(opts, answer.get()).MoveValue(); |
| |
| // Expect that the results of the first negotiation are ignored. If the m= |
| // section was not recycled the payload types would match the initial offerer. |
| const AudioContentDescription* acd = |
| GetFirstAudioContentDescription(reoffer.get()); |
| EXPECT_THAT(acd->codecs(), ElementsAreArray(kAudioCodecs2)); |
| } |
| |
| // Test that a reoffer does not reuse video codecs from a previous media section |
| // that is being recycled. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| ReOfferDoesNotReUseRecycledVideoCodecs) { |
| f1_.set_audio_codecs({}, {}); |
| f2_.set_audio_codecs({}, {}); |
| |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "v0", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| auto answer = f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| // Recycle the media section by changing its mid. |
| opts.media_description_options[0].mid = "v1"; |
| std::unique_ptr<SessionDescription> reoffer = |
| f2_.CreateOfferOrError(opts, answer.get()).MoveValue(); |
| |
| // Expect that the results of the first negotiation are ignored. If the m= |
| // section was not recycled the payload types would match the initial offerer. |
| const VideoContentDescription* vcd = |
| GetFirstVideoContentDescription(reoffer.get()); |
| EXPECT_THAT(vcd->codecs(), ElementsAreArray(kVideoCodecs2)); |
| } |
| |
| // Test that a reanswer does not reuse audio codecs from a previous media |
| // section that is being recycled. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| ReAnswerDoesNotReUseRecycledAudioCodecs) { |
| f1_.set_video_codecs({}, {}); |
| f2_.set_video_codecs({}, {}); |
| |
| // Perform initial offer/answer in reverse (`f2_` as offerer) so that the |
| // second offer/answer is forward (`f1_` as offerer). |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "a0", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f2_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f1_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| // Recycle the media section by changing its mid. |
| opts.media_description_options[0].mid = "a1"; |
| std::unique_ptr<SessionDescription> reoffer = |
| f1_.CreateOfferOrError(opts, answer.get()).MoveValue(); |
| std::unique_ptr<SessionDescription> reanswer = |
| f2_.CreateAnswerOrError(reoffer.get(), opts, offer.get()).MoveValue(); |
| |
| // Expect that the results of the first negotiation are ignored. If the m= |
| // section was not recycled the payload types would match the initial offerer. |
| const AudioContentDescription* acd = |
| GetFirstAudioContentDescription(reanswer.get()); |
| EXPECT_THAT(acd->codecs(), ElementsAreArray(kAudioCodecsAnswer)); |
| } |
| |
| // Test that a reanswer does not reuse video codecs from a previous media |
| // section that is being recycled. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| ReAnswerDoesNotReUseRecycledVideoCodecs) { |
| f1_.set_audio_codecs({}, {}); |
| f2_.set_audio_codecs({}, {}); |
| |
| // Perform initial offer/answer in reverse (`f2_` as offerer) so that the |
| // second offer/answer is forward (`f1_` as offerer). |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "v0", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f2_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f1_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| // Recycle the media section by changing its mid. |
| opts.media_description_options[0].mid = "v1"; |
| std::unique_ptr<SessionDescription> reoffer = |
| f1_.CreateOfferOrError(opts, answer.get()).MoveValue(); |
| std::unique_ptr<SessionDescription> reanswer = |
| f2_.CreateAnswerOrError(reoffer.get(), opts, offer.get()).MoveValue(); |
| |
| // Expect that the results of the first negotiation are ignored. If the m= |
| // section was not recycled the payload types would match the initial offerer. |
| const VideoContentDescription* vcd = |
| GetFirstVideoContentDescription(reanswer.get()); |
| EXPECT_THAT(vcd->codecs(), ElementsAreArray(kVideoCodecsAnswer)); |
| } |
| |
| // Create an updated offer after creating an answer to the original offer and |
| // verify that the codecs that were part of the original answer are not changed |
| // in the updated offer. In this test Rtx is enabled. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| RespondentCreatesOfferAfterCreatingAnswerWithRtx) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1); |
| // This creates rtx for H264 with the payload type `f1_` uses. |
| AddRtxCodec(CreateVideoRtxCodec(126, kVideoCodecs1[1].id), &f1_codecs); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2); |
| // This creates rtx for H264 with the payload type `f2_` uses. |
| AddRtxCodec(CreateVideoRtxCodec(125, kVideoCodecs2[0].id), &f2_codecs); |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| const VideoContentDescription* vcd = |
| GetFirstVideoContentDescription(answer.get()); |
| |
| std::vector<VideoCodec> expected_codecs = MAKE_VECTOR(kVideoCodecsAnswer); |
| AddRtxCodec(CreateVideoRtxCodec(126, kVideoCodecs1[1].id), &expected_codecs); |
| |
| EXPECT_EQ(expected_codecs, vcd->codecs()); |
| |
| // Now, make sure we get same result (except for the order) if `f2_` creates |
| // an updated offer even though the default payload types between `f1_` and |
| // `f2_` are different. |
| std::unique_ptr<SessionDescription> updated_offer( |
| f2_.CreateOfferOrError(opts, answer.get()).MoveValue()); |
| ASSERT_TRUE(updated_offer); |
| std::unique_ptr<SessionDescription> updated_answer( |
| f1_.CreateAnswerOrError(updated_offer.get(), opts, answer.get()) |
| .MoveValue()); |
| |
| const VideoContentDescription* updated_vcd = |
| GetFirstVideoContentDescription(updated_answer.get()); |
| |
| EXPECT_EQ(expected_codecs, updated_vcd->codecs()); |
| } |
| |
| // Regression test for: |
| // https://bugs.chromium.org/p/webrtc/issues/detail?id=8332 |
| // Existing codecs should always appear before new codecs in re-offers. But |
| // under a specific set of circumstances, the existing RTX codec was ending up |
| // added to the end of the list. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| RespondentCreatesOfferAfterCreatingAnswerWithRemappedRtxPayloadType) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| // We specifically choose different preferred payload types for VP8 to |
| // trigger the issue. |
| VideoCodec vp8_offerer = CreateVideoCodec(100, "VP8"); |
| VideoCodec vp8_offerer_rtx = CreateVideoRtxCodec(101, vp8_offerer.id); |
| VideoCodec vp8_answerer = CreateVideoCodec(110, "VP8"); |
| VideoCodec vp8_answerer_rtx = CreateVideoRtxCodec(111, vp8_answerer.id); |
| VideoCodec vp9 = CreateVideoCodec(120, "VP9"); |
| VideoCodec vp9_rtx = CreateVideoRtxCodec(121, vp9.id); |
| |
| std::vector<VideoCodec> f1_codecs = {vp8_offerer, vp8_offerer_rtx}; |
| // We also specifically cause the answerer to prefer VP9, such that if it |
| // *doesn't* honor the existing preferred codec (VP8) we'll notice. |
| std::vector<VideoCodec> f2_codecs = {vp9, vp9_rtx, vp8_answerer, |
| vp8_answerer_rtx}; |
| |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| std::vector<AudioCodec> audio_codecs; |
| f1_.set_audio_codecs(audio_codecs, audio_codecs); |
| f2_.set_audio_codecs(audio_codecs, audio_codecs); |
| |
| // Offer will be {VP8, RTX for VP8}. Answer will be the same. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| // Updated offer *should* be {VP8, RTX for VP8, VP9, RTX for VP9}. |
| // But if the bug is triggered, RTX for VP8 ends up last. |
| std::unique_ptr<SessionDescription> updated_offer( |
| f2_.CreateOfferOrError(opts, answer.get()).MoveValue()); |
| |
| const VideoContentDescription* vcd = |
| GetFirstVideoContentDescription(updated_offer.get()); |
| std::vector<VideoCodec> codecs = vcd->codecs(); |
| ASSERT_EQ(4u, codecs.size()); |
| EXPECT_EQ(vp8_offerer, codecs[0]); |
| EXPECT_EQ(vp8_offerer_rtx, codecs[1]); |
| EXPECT_EQ(vp9, codecs[2]); |
| EXPECT_EQ(vp9_rtx, codecs[3]); |
| } |
| |
| // Create an updated offer that adds video after creating an audio only answer |
| // to the original offer. This test verifies that if a video codec and the RTX |
| // codec have the same default payload type as an audio codec that is already in |
| // use, the added codecs payload types are changed. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| RespondentCreatesOfferWithVideoAndRtxAfterCreatingAudioAnswer) { |
| std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1); |
| // This creates rtx for H264 with the payload type `f1_` uses. |
| AddRtxCodec(CreateVideoRtxCodec(126, kVideoCodecs1[1].id), &f1_codecs); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| const AudioContentDescription* acd = |
| GetFirstAudioContentDescription(answer.get()); |
| EXPECT_THAT(acd->codecs(), ElementsAreArray(kAudioCodecsAnswer)); |
| |
| // Now - let `f2_` add video with RTX and let the payload type the RTX codec |
| // reference be the same as an audio codec that was negotiated in the |
| // first offer/answer exchange. |
| opts.media_description_options.clear(); |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2); |
| int used_pl_type = acd->codecs()[0].id; |
| f2_codecs[0].id = used_pl_type; // Set the payload type for H264. |
| AddRtxCodec(CreateVideoRtxCodec(125, used_pl_type), &f2_codecs); |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| std::unique_ptr<SessionDescription> updated_offer( |
| f2_.CreateOfferOrError(opts, answer.get()).MoveValue()); |
| ASSERT_TRUE(updated_offer); |
| std::unique_ptr<SessionDescription> updated_answer( |
| f1_.CreateAnswerOrError(updated_offer.get(), opts, answer.get()) |
| .MoveValue()); |
| |
| const AudioContentDescription* updated_acd = |
| GetFirstAudioContentDescription(answer.get()); |
| EXPECT_THAT(updated_acd->codecs(), ElementsAreArray(kAudioCodecsAnswer)); |
| |
| const VideoContentDescription* updated_vcd = |
| GetFirstVideoContentDescription(updated_answer.get()); |
| |
| ASSERT_EQ("H264", updated_vcd->codecs()[0].name); |
| ASSERT_EQ(kRtxCodecName, updated_vcd->codecs()[1].name); |
| int new_h264_pl_type = updated_vcd->codecs()[0].id; |
| EXPECT_NE(used_pl_type, new_h264_pl_type); |
| VideoCodec rtx = updated_vcd->codecs()[1]; |
| int pt_referenced_by_rtx = |
| rtc::FromString<int>(rtx.params[kCodecParamAssociatedPayloadType]); |
| EXPECT_EQ(new_h264_pl_type, pt_referenced_by_rtx); |
| } |
| |
| // Create an updated offer with RTX after creating an answer to an offer |
| // without RTX, and with different default payload types. |
| // Verify that the added RTX codec references the correct payload type. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| RespondentCreatesOfferWithRtxAfterCreatingAnswerWithoutRtx) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2); |
| // This creates rtx for H264 with the payload type `f2_` uses. |
| AddRtxCodec(CreateVideoRtxCodec(125, kVideoCodecs2[0].id), &f2_codecs); |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| const VideoContentDescription* vcd = |
| GetFirstVideoContentDescription(answer.get()); |
| |
| std::vector<VideoCodec> expected_codecs = MAKE_VECTOR(kVideoCodecsAnswer); |
| EXPECT_EQ(expected_codecs, vcd->codecs()); |
| |
| // Now, ensure that the RTX codec is created correctly when `f2_` creates an |
| // updated offer, even though the default payload types are different from |
| // those of `f1_`. |
| std::unique_ptr<SessionDescription> updated_offer( |
| f2_.CreateOfferOrError(opts, answer.get()).MoveValue()); |
| ASSERT_TRUE(updated_offer); |
| |
| const VideoContentDescription* updated_vcd = |
| GetFirstVideoContentDescription(updated_offer.get()); |
| |
| // New offer should attempt to add H263, and RTX for H264. |
| expected_codecs.push_back(kVideoCodecs2[1]); |
| AddRtxCodec(CreateVideoRtxCodec(125, kVideoCodecs1[1].id), &expected_codecs); |
| EXPECT_EQ(expected_codecs, updated_vcd->codecs()); |
| } |
| |
| // Test that RTX is ignored when there is no associated payload type parameter. |
| TEST_F(MediaSessionDescriptionFactoryTest, RtxWithoutApt) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1); |
| // This creates RTX without associated payload type parameter. |
| AddRtxCodec(CreateVideoCodec(126, kRtxCodecName), &f1_codecs); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2); |
| // This creates RTX for H264 with the payload type `f2_` uses. |
| AddRtxCodec(CreateVideoRtxCodec(125, kVideoCodecs2[0].id), &f2_codecs); |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| // kCodecParamAssociatedPayloadType will always be added to the offer when RTX |
| // is selected. Manually remove kCodecParamAssociatedPayloadType so that it |
| // is possible to test that that RTX is dropped when |
| // kCodecParamAssociatedPayloadType is missing in the offer. |
| MediaContentDescription* media_desc = |
| offer->GetContentDescriptionByName(CN_VIDEO); |
| ASSERT_TRUE(media_desc); |
| std::vector<Codec> codecs = media_desc->codecs(); |
| for (Codec& codec : codecs) { |
| if (absl::StartsWith(codec.name, kRtxCodecName)) { |
| codec.params.clear(); |
| } |
| } |
| media_desc->set_codecs(codecs); |
| |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| EXPECT_THAT( |
| GetCodecNames(GetFirstVideoContentDescription(answer.get())->codecs()), |
| Not(Contains(kRtxCodecName))); |
| } |
| |
| // Test that RTX will be filtered out in the answer if its associated payload |
| // type doesn't match the local value. |
| TEST_F(MediaSessionDescriptionFactoryTest, FilterOutRtxIfAptDoesntMatch) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1); |
| // This creates RTX for H264 in sender. |
| AddRtxCodec(CreateVideoRtxCodec(126, kVideoCodecs1[1].id), &f1_codecs); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2); |
| // This creates RTX for H263 in receiver. |
| AddRtxCodec(CreateVideoRtxCodec(125, kVideoCodecs2[1].id), &f2_codecs); |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| // Associated payload type doesn't match, therefore, RTX codec is removed in |
| // the answer. |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| EXPECT_THAT( |
| GetCodecNames(GetFirstVideoContentDescription(answer.get())->codecs()), |
| Not(Contains(kRtxCodecName))); |
| } |
| |
| // Test that when multiple RTX codecs are offered, only the matched RTX codec |
| // is added in the answer, and the unsupported RTX codec is filtered out. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| FilterOutUnsupportedRtxWhenCreatingAnswer) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1); |
| // This creates RTX for H264-SVC in sender. |
| AddRtxCodec(CreateVideoRtxCodec(125, kVideoCodecs1[0].id), &f1_codecs); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| // This creates RTX for H264 in sender. |
| AddRtxCodec(CreateVideoRtxCodec(126, kVideoCodecs1[1].id), &f1_codecs); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2); |
| // This creates RTX for H264 in receiver. |
| AddRtxCodec(CreateVideoRtxCodec(124, kVideoCodecs2[0].id), &f2_codecs); |
| f2_.set_video_codecs(f2_codecs, f1_codecs); |
| |
| // H264-SVC codec is removed in the answer, therefore, associated RTX codec |
| // for H264-SVC should also be removed. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const VideoContentDescription* vcd = |
| GetFirstVideoContentDescription(answer.get()); |
| std::vector<VideoCodec> expected_codecs = MAKE_VECTOR(kVideoCodecsAnswer); |
| AddRtxCodec(CreateVideoRtxCodec(126, kVideoCodecs1[1].id), &expected_codecs); |
| |
| EXPECT_EQ(expected_codecs, vcd->codecs()); |
| } |
| |
| // Test that after one RTX codec has been negotiated, a new offer can attempt |
| // to add another. |
| TEST_F(MediaSessionDescriptionFactoryTest, AddSecondRtxInNewOffer) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1); |
| // This creates RTX for H264 for the offerer. |
| AddRtxCodec(CreateVideoRtxCodec(126, kVideoCodecs1[1].id), &f1_codecs); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| const VideoContentDescription* vcd = |
| GetFirstVideoContentDescription(offer.get()); |
| |
| std::vector<VideoCodec> expected_codecs = MAKE_VECTOR(kVideoCodecs1); |
| AddRtxCodec(CreateVideoRtxCodec(126, kVideoCodecs1[1].id), &expected_codecs); |
| EXPECT_EQ(expected_codecs, vcd->codecs()); |
| |
| // Now, attempt to add RTX for H264-SVC. |
| AddRtxCodec(CreateVideoRtxCodec(125, kVideoCodecs1[0].id), &f1_codecs); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::unique_ptr<SessionDescription> updated_offer( |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue()); |
| ASSERT_TRUE(updated_offer); |
| vcd = GetFirstVideoContentDescription(updated_offer.get()); |
| |
| AddRtxCodec(CreateVideoRtxCodec(125, kVideoCodecs1[0].id), &expected_codecs); |
| EXPECT_EQ(expected_codecs, vcd->codecs()); |
| } |
| |
| // Test that when RTX is used in conjunction with simulcast, an RTX ssrc is |
| // generated for each simulcast ssrc and correctly grouped. |
| TEST_F(MediaSessionDescriptionFactoryTest, SimSsrcsGenerateMultipleRtxSsrcs) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| // Add simulcast streams. |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, "stream1", |
| {"stream1label"}, 3, &opts); |
| |
| // Use a single real codec, and then add RTX for it. |
| std::vector<VideoCodec> f1_codecs; |
| f1_codecs.push_back(CreateVideoCodec(97, "H264")); |
| AddRtxCodec(CreateVideoRtxCodec(125, 97), &f1_codecs); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| // Ensure that the offer has an RTX ssrc for each regular ssrc, and that there |
| // is a FID ssrc + grouping for each. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| MediaContentDescription* media_desc = |
| offer->GetContentDescriptionByName(CN_VIDEO); |
| ASSERT_TRUE(media_desc); |
| const StreamParamsVec& streams = media_desc->streams(); |
| // Single stream. |
| ASSERT_EQ(1u, streams.size()); |
| // Stream should have 6 ssrcs: 3 for video, 3 for RTX. |
| EXPECT_EQ(6u, streams[0].ssrcs.size()); |
| // And should have a SIM group for the simulcast. |
| EXPECT_TRUE(streams[0].has_ssrc_group("SIM")); |
| // And a FID group for RTX. |
| EXPECT_TRUE(streams[0].has_ssrc_group("FID")); |
| std::vector<uint32_t> primary_ssrcs; |
| streams[0].GetPrimarySsrcs(&primary_ssrcs); |
| EXPECT_EQ(3u, primary_ssrcs.size()); |
| std::vector<uint32_t> fid_ssrcs; |
| streams[0].GetFidSsrcs(primary_ssrcs, &fid_ssrcs); |
| EXPECT_EQ(3u, fid_ssrcs.size()); |
| } |
| |
| // Test that, when the FlexFEC codec is added, a FlexFEC ssrc is created |
| // together with a FEC-FR grouping. Guarded by WebRTC-FlexFEC-03 trial. |
| TEST_F(MediaSessionDescriptionFactoryTest, GenerateFlexfecSsrc) { |
| webrtc::test::ScopedKeyValueConfig override_field_trials( |
| field_trials, "WebRTC-FlexFEC-03/Enabled/"); |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| // Add single stream. |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, "stream1", |
| {"stream1label"}, 1, &opts); |
| |
| // Use a single real codec, and then add FlexFEC for it. |
| std::vector<VideoCodec> f1_codecs; |
| f1_codecs.push_back(CreateVideoCodec(97, "H264")); |
| f1_codecs.push_back(CreateVideoCodec(118, "flexfec-03")); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| // Ensure that the offer has a single FlexFEC ssrc and that |
| // there is no FEC-FR ssrc + grouping for each. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| MediaContentDescription* media_desc = |
| offer->GetContentDescriptionByName(CN_VIDEO); |
| ASSERT_TRUE(media_desc); |
| const StreamParamsVec& streams = media_desc->streams(); |
| // Single stream. |
| ASSERT_EQ(1u, streams.size()); |
| // Stream should have 2 ssrcs: 1 for video, 1 for FlexFEC. |
| EXPECT_EQ(2u, streams[0].ssrcs.size()); |
| // And should have a FEC-FR group for FlexFEC. |
| EXPECT_TRUE(streams[0].has_ssrc_group("FEC-FR")); |
| std::vector<uint32_t> primary_ssrcs; |
| streams[0].GetPrimarySsrcs(&primary_ssrcs); |
| ASSERT_EQ(1u, primary_ssrcs.size()); |
| uint32_t flexfec_ssrc; |
| EXPECT_TRUE(streams[0].GetFecFrSsrc(primary_ssrcs[0], &flexfec_ssrc)); |
| EXPECT_NE(flexfec_ssrc, 0u); |
| } |
| |
| // Test that FlexFEC is disabled for simulcast. |
| // TODO(brandtr): Remove this test when we support simulcast, either through |
| // multiple FlexfecSenders, or through multistream protection. |
| TEST_F(MediaSessionDescriptionFactoryTest, SimSsrcsGenerateNoFlexfecSsrcs) { |
| webrtc::test::ScopedKeyValueConfig override_field_trials( |
| field_trials, "WebRTC-FlexFEC-03/Enabled/"); |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| // Add simulcast streams. |
| AttachSenderToMediaDescriptionOptions("video", MEDIA_TYPE_VIDEO, "stream1", |
| {"stream1label"}, 3, &opts); |
| |
| // Use a single real codec, and then add FlexFEC for it. |
| std::vector<VideoCodec> f1_codecs; |
| f1_codecs.push_back(CreateVideoCodec(97, "H264")); |
| f1_codecs.push_back(CreateVideoCodec(118, "flexfec-03")); |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| // Ensure that the offer has no FlexFEC ssrcs for each regular ssrc, and that |
| // there is no FEC-FR ssrc + grouping for each. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| MediaContentDescription* media_desc = |
| offer->GetContentDescriptionByName(CN_VIDEO); |
| ASSERT_TRUE(media_desc); |
| const StreamParamsVec& streams = media_desc->streams(); |
| // Single stream. |
| ASSERT_EQ(1u, streams.size()); |
| // Stream should have 3 ssrcs: 3 for video, 0 for FlexFEC. |
| EXPECT_EQ(3u, streams[0].ssrcs.size()); |
| // And should have a SIM group for the simulcast. |
| EXPECT_TRUE(streams[0].has_ssrc_group("SIM")); |
| // And not a FEC-FR group for FlexFEC. |
| EXPECT_FALSE(streams[0].has_ssrc_group("FEC-FR")); |
| std::vector<uint32_t> primary_ssrcs; |
| streams[0].GetPrimarySsrcs(&primary_ssrcs); |
| EXPECT_EQ(3u, primary_ssrcs.size()); |
| for (uint32_t primary_ssrc : primary_ssrcs) { |
| uint32_t flexfec_ssrc; |
| EXPECT_FALSE(streams[0].GetFecFrSsrc(primary_ssrc, &flexfec_ssrc)); |
| } |
| } |
| |
| // Create an updated offer after creating an answer to the original offer and |
| // verify that the RTP header extensions that were part of the original answer |
| // are not changed in the updated offer. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| RespondentCreatesOfferAfterCreatingAnswerWithRtpExtensions) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension1), |
| MAKE_VECTOR(kVideoRtpExtension1), &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension2), |
| MAKE_VECTOR(kVideoRtpExtension2), &opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtensionAnswer), |
| GetFirstAudioContentDescription(answer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kVideoRtpExtensionAnswer), |
| GetFirstVideoContentDescription(answer.get())->rtp_header_extensions()); |
| |
| std::unique_ptr<SessionDescription> updated_offer( |
| f2_.CreateOfferOrError(opts, answer.get()).MoveValue()); |
| |
| // The expected RTP header extensions in the new offer are the resulting |
| // extensions from the first offer/answer exchange plus the extensions only |
| // `f2_` offer. |
| // Since the default local extension id `f2_` uses has already been used by |
| // `f1_` for another extensions, it is changed to 13. |
| const RtpExtension kUpdatedAudioRtpExtensions[] = { |
| kAudioRtpExtensionAnswer[0], |
| RtpExtension(kAudioRtpExtension2[1].uri, 13), |
| kAudioRtpExtension2[2], |
| }; |
| |
| // Since the default local extension id `f2_` uses has already been used by |
| // `f1_` for another extensions, is is changed to 12. |
| const RtpExtension kUpdatedVideoRtpExtensions[] = { |
| kVideoRtpExtensionAnswer[0], |
| RtpExtension(kVideoRtpExtension2[1].uri, 12), |
| kVideoRtpExtension2[2], |
| }; |
| |
| const AudioContentDescription* updated_acd = |
| GetFirstAudioContentDescription(updated_offer.get()); |
| EXPECT_EQ(MAKE_VECTOR(kUpdatedAudioRtpExtensions), |
| updated_acd->rtp_header_extensions()); |
| |
| const VideoContentDescription* updated_vcd = |
| GetFirstVideoContentDescription(updated_offer.get()); |
| EXPECT_EQ(MAKE_VECTOR(kUpdatedVideoRtpExtensions), |
| updated_vcd->rtp_header_extensions()); |
| } |
| |
| // Verify that if the same RTP extension URI is used for audio and video, the |
| // same ID is used. Also verify that the ID isn't changed when creating an |
| // updated offer (this was previously a bug). |
| TEST_F(MediaSessionDescriptionFactoryTest, RtpExtensionIdReused) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| SetAudioVideoRtpHeaderExtensions(MAKE_VECTOR(kAudioRtpExtension3), |
| MAKE_VECTOR(kVideoRtpExtension3), &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| |
| // Since the audio extensions used ID 3 for "both_audio_and_video", so should |
| // the video extensions. |
| const RtpExtension kExpectedVideoRtpExtension[] = { |
| kVideoRtpExtension3[0], |
| kAudioRtpExtension3[1], |
| }; |
| |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtension3), |
| GetFirstAudioContentDescription(offer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kExpectedVideoRtpExtension), |
| GetFirstVideoContentDescription(offer.get())->rtp_header_extensions()); |
| |
| // Nothing should change when creating a new offer |
| std::unique_ptr<SessionDescription> updated_offer( |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue()); |
| |
| EXPECT_EQ(MAKE_VECTOR(kAudioRtpExtension3), |
| GetFirstAudioContentDescription(updated_offer.get()) |
| ->rtp_header_extensions()); |
| EXPECT_EQ(MAKE_VECTOR(kExpectedVideoRtpExtension), |
| GetFirstVideoContentDescription(updated_offer.get()) |
| ->rtp_header_extensions()); |
| } |
| |
| // Same as "RtpExtensionIdReused" above for encrypted RTP extensions. |
| TEST_F(MediaSessionDescriptionFactoryTest, RtpExtensionIdReusedEncrypted) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| |
| f1_.set_enable_encrypted_rtp_header_extensions(true); |
| f2_.set_enable_encrypted_rtp_header_extensions(true); |
| |
| SetAudioVideoRtpHeaderExtensions( |
| MAKE_VECTOR(kAudioRtpExtension3ForEncryption), |
| MAKE_VECTOR(kVideoRtpExtension3ForEncryption), &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| |
| EXPECT_EQ( |
| MAKE_VECTOR(kAudioRtpExtension3ForEncryptionOffer), |
| GetFirstAudioContentDescription(offer.get())->rtp_header_extensions()); |
| EXPECT_EQ( |
| MAKE_VECTOR(kVideoRtpExtension3ForEncryptionOffer), |
| GetFirstVideoContentDescription(offer.get())->rtp_header_extensions()); |
| |
| // Nothing should change when creating a new offer |
| std::unique_ptr<SessionDescription> updated_offer( |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue()); |
| |
| EXPECT_EQ(MAKE_VECTOR(kAudioRtpExtension3ForEncryptionOffer), |
| GetFirstAudioContentDescription(updated_offer.get()) |
| ->rtp_header_extensions()); |
| EXPECT_EQ(MAKE_VECTOR(kVideoRtpExtension3ForEncryptionOffer), |
| GetFirstVideoContentDescription(updated_offer.get()) |
| ->rtp_header_extensions()); |
| } |
| |
| TEST(MediaSessionDescription, CopySessionDescription) { |
| SessionDescription source; |
| ContentGroup group(CN_AUDIO); |
| source.AddGroup(group); |
| std::unique_ptr<AudioContentDescription> acd = |
| std::make_unique<AudioContentDescription>(); |
| acd->set_codecs(MAKE_VECTOR(kAudioCodecs1)); |
| acd->AddLegacyStream(1); |
| source.AddContent(CN_AUDIO, MediaProtocolType::kRtp, acd->Clone()); |
| std::unique_ptr<VideoContentDescription> vcd = |
| std::make_unique<VideoContentDescription>(); |
| vcd->set_codecs(MAKE_VECTOR(kVideoCodecs1)); |
| vcd->AddLegacyStream(2); |
| source.AddContent(CN_VIDEO, MediaProtocolType::kRtp, vcd->Clone()); |
| |
| std::unique_ptr<SessionDescription> copy = source.Clone(); |
| ASSERT_TRUE(copy.get()); |
| EXPECT_TRUE(copy->HasGroup(CN_AUDIO)); |
| const ContentInfo* ac = copy->GetContentByName("audio"); |
| const ContentInfo* vc = copy->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| EXPECT_EQ(MediaProtocolType::kRtp, ac->type); |
| const MediaContentDescription* acd_copy = ac->media_description(); |
| EXPECT_EQ(acd->codecs(), acd_copy->codecs()); |
| EXPECT_EQ(1u, acd->first_ssrc()); |
| |
| EXPECT_EQ(MediaProtocolType::kRtp, vc->type); |
| const MediaContentDescription* vcd_copy = vc->media_description(); |
| EXPECT_EQ(vcd->codecs(), vcd_copy->codecs()); |
| EXPECT_EQ(2u, vcd->first_ssrc()); |
| } |
| |
| // The below TestTransportInfoXXX tests create different offers/answers, and |
| // ensure the TransportInfo in the SessionDescription matches what we expect. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoOfferAudio) { |
| MediaSessionOptions options; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &options); |
| TestTransportInfo(true, options, false); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestTransportInfoOfferIceRenomination) { |
| MediaSessionOptions options; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &options); |
| options.media_description_options[0] |
| .transport_options.enable_ice_renomination = true; |
| TestTransportInfo(true, options, false); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoOfferAudioCurrent) { |
| MediaSessionOptions options; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &options); |
| TestTransportInfo(true, options, true); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoOfferMultimedia) { |
| MediaSessionOptions options; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &options); |
| TestTransportInfo(true, options, false); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestTransportInfoOfferMultimediaCurrent) { |
| MediaSessionOptions options; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &options); |
| TestTransportInfo(true, options, true); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoOfferBundle) { |
| MediaSessionOptions options; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &options); |
| options.bundle_enabled = true; |
| TestTransportInfo(true, options, false); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestTransportInfoOfferBundleCurrent) { |
| MediaSessionOptions options; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &options); |
| options.bundle_enabled = true; |
| TestTransportInfo(true, options, true); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoAnswerAudio) { |
| MediaSessionOptions options; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &options); |
| TestTransportInfo(false, options, false); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestTransportInfoAnswerIceRenomination) { |
| MediaSessionOptions options; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &options); |
| options.media_description_options[0] |
| .transport_options.enable_ice_renomination = true; |
| TestTransportInfo(false, options, false); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestTransportInfoAnswerAudioCurrent) { |
| MediaSessionOptions options; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &options); |
| TestTransportInfo(false, options, true); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoAnswerMultimedia) { |
| MediaSessionOptions options; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &options); |
| TestTransportInfo(false, options, false); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestTransportInfoAnswerMultimediaCurrent) { |
| MediaSessionOptions options; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &options); |
| TestTransportInfo(false, options, true); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoAnswerBundle) { |
| MediaSessionOptions options; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &options); |
| options.bundle_enabled = true; |
| TestTransportInfo(false, options, false); |
| } |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| TestTransportInfoAnswerBundleCurrent) { |
| MediaSessionOptions options; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &options); |
| options.bundle_enabled = true; |
| TestTransportInfo(false, options, true); |
| } |
| |
| // Offers UDP/TLS/RTP/SAVPF and verifies the answer can be created and contains |
| // UDP/TLS/RTP/SAVPF. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestOfferDtlsSavpfCreateAnswer) { |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(CreateAudioMediaSession(), nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| ContentInfo* offer_content = offer->GetContentByName("audio"); |
| ASSERT_TRUE(offer_content); |
| MediaContentDescription* offer_audio_desc = |
| offer_content->media_description(); |
| offer_audio_desc->set_protocol(kMediaProtocolDtlsSavpf); |
| |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), CreateAudioMediaSession(), nullptr) |
| .MoveValue(); |
| ASSERT_TRUE(answer); |
| |
| const ContentInfo* answer_content = answer->GetContentByName("audio"); |
| ASSERT_TRUE(answer_content); |
| ASSERT_FALSE(answer_content->rejected); |
| |
| const MediaContentDescription* answer_audio_desc = |
| answer_content->media_description(); |
| EXPECT_EQ(kMediaProtocolDtlsSavpf, answer_audio_desc->protocol()); |
| } |
| |
| |
| // Test that we accept a DTLS offer without SDES and create an appropriate |
| // answer. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestCryptoOfferDtlsButNotSdes) { |
| /* TODO(hta): Figure this one out. |
| f1_.set_secure(SEC_DISABLED); |
| f2_.set_secure(SEC_ENABLED); |
| tdf1_.set_secure(SEC_ENABLED); |
| tdf2_.set_secure(SEC_ENABLED); |
| */ |
| MediaSessionOptions options; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &options); |
| |
| // Generate an offer with DTLS |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(options, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| |
| const TransportDescription* audio_offer_trans_desc = |
| offer->GetTransportDescriptionByName("audio"); |
| ASSERT_TRUE(audio_offer_trans_desc->identity_fingerprint.get()); |
| const TransportDescription* video_offer_trans_desc = |
| offer->GetTransportDescriptionByName("video"); |
| ASSERT_TRUE(video_offer_trans_desc->identity_fingerprint.get()); |
| |
| // Generate an answer with DTLS. |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), options, nullptr).MoveValue(); |
| ASSERT_TRUE(answer.get()); |
| |
| const TransportDescription* audio_answer_trans_desc = |
| answer->GetTransportDescriptionByName("audio"); |
| EXPECT_TRUE(audio_answer_trans_desc->identity_fingerprint.get()); |
| const TransportDescription* video_answer_trans_desc = |
| answer->GetTransportDescriptionByName("video"); |
| EXPECT_TRUE(video_answer_trans_desc->identity_fingerprint.get()); |
| } |
| |
| // Verifies if vad_enabled option is set to false, CN codecs are not present in |
| // offer or answer. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestVADEnableOption) { |
| MediaSessionOptions options; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &options); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(options, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| const ContentInfo* audio_content = offer->GetContentByName("audio"); |
| EXPECT_FALSE(VerifyNoCNCodecs(audio_content)); |
| |
| options.vad_enabled = false; |
| offer = f1_.CreateOfferOrError(options, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| audio_content = offer->GetContentByName("audio"); |
| EXPECT_TRUE(VerifyNoCNCodecs(audio_content)); |
| std::unique_ptr<SessionDescription> answer = |
| f1_.CreateAnswerOrError(offer.get(), options, nullptr).MoveValue(); |
| ASSERT_TRUE(answer.get()); |
| audio_content = answer->GetContentByName("audio"); |
| EXPECT_TRUE(VerifyNoCNCodecs(audio_content)); |
| } |
| |
| // Test that the generated MIDs match the existing offer. |
| TEST_F(MediaSessionDescriptionFactoryTest, TestMIDsMatchesExistingOffer) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio_modified", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video_modified", |
| RtpTransceiverDirection::kRecvOnly, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_DATA, "data_modified", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| // Create offer. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| std::unique_ptr<SessionDescription> updated_offer( |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue()); |
| |
| const ContentInfo* audio_content = GetFirstAudioContent(updated_offer.get()); |
| const ContentInfo* video_content = GetFirstVideoContent(updated_offer.get()); |
| const ContentInfo* data_content = GetFirstDataContent(updated_offer.get()); |
| ASSERT_TRUE(audio_content); |
| ASSERT_TRUE(video_content); |
| ASSERT_TRUE(data_content); |
| EXPECT_EQ("audio_modified", audio_content->name); |
| EXPECT_EQ("video_modified", video_content->name); |
| EXPECT_EQ("data_modified", data_content->name); |
| } |
| |
| // The following tests verify that the unified plan SDP is supported. |
| // Test that we can create an offer with multiple media sections of same media |
| // type. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| CreateOfferWithMultipleAVMediaSections) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio_1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AttachSenderToMediaDescriptionOptions( |
| "audio_1", MEDIA_TYPE_AUDIO, kAudioTrack1, {kMediaStream1}, 1, &opts); |
| |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video_1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AttachSenderToMediaDescriptionOptions( |
| "video_1", MEDIA_TYPE_VIDEO, kVideoTrack1, {kMediaStream1}, 1, &opts); |
| |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio_2", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AttachSenderToMediaDescriptionOptions( |
| "audio_2", MEDIA_TYPE_AUDIO, kAudioTrack2, {kMediaStream2}, 1, &opts); |
| |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video_2", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AttachSenderToMediaDescriptionOptions( |
| "video_2", MEDIA_TYPE_VIDEO, kVideoTrack2, {kMediaStream2}, 1, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| |
| ASSERT_EQ(4u, offer->contents().size()); |
| EXPECT_FALSE(offer->contents()[0].rejected); |
| const MediaContentDescription* acd = offer->contents()[0].media_description(); |
| ASSERT_EQ(1u, acd->streams().size()); |
| EXPECT_EQ(kAudioTrack1, acd->streams()[0].id); |
| EXPECT_EQ(RtpTransceiverDirection::kSendRecv, acd->direction()); |
| |
| EXPECT_FALSE(offer->contents()[1].rejected); |
| const MediaContentDescription* vcd = offer->contents()[1].media_description(); |
| ASSERT_EQ(1u, vcd->streams().size()); |
| EXPECT_EQ(kVideoTrack1, vcd->streams()[0].id); |
| EXPECT_EQ(RtpTransceiverDirection::kSendRecv, vcd->direction()); |
| |
| EXPECT_FALSE(offer->contents()[2].rejected); |
| acd = offer->contents()[2].media_description(); |
| ASSERT_EQ(1u, acd->streams().size()); |
| EXPECT_EQ(kAudioTrack2, acd->streams()[0].id); |
| EXPECT_EQ(RtpTransceiverDirection::kSendRecv, acd->direction()); |
| |
| EXPECT_FALSE(offer->contents()[3].rejected); |
| vcd = offer->contents()[3].media_description(); |
| ASSERT_EQ(1u, vcd->streams().size()); |
| EXPECT_EQ(kVideoTrack2, vcd->streams()[0].id); |
| EXPECT_EQ(RtpTransceiverDirection::kSendRecv, vcd->direction()); |
| } |
| |
| // Test that we can create an answer with multiple media sections of same media |
| // type. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| CreateAnswerWithMultipleAVMediaSections) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio_1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AttachSenderToMediaDescriptionOptions( |
| "audio_1", MEDIA_TYPE_AUDIO, kAudioTrack1, {kMediaStream1}, 1, &opts); |
| |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video_1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AttachSenderToMediaDescriptionOptions( |
| "video_1", MEDIA_TYPE_VIDEO, kVideoTrack1, {kMediaStream1}, 1, &opts); |
| |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio_2", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AttachSenderToMediaDescriptionOptions( |
| "audio_2", MEDIA_TYPE_AUDIO, kAudioTrack2, {kMediaStream2}, 1, &opts); |
| |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video_2", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AttachSenderToMediaDescriptionOptions( |
| "video_2", MEDIA_TYPE_VIDEO, kVideoTrack2, {kMediaStream2}, 1, &opts); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| |
| ASSERT_EQ(4u, answer->contents().size()); |
| EXPECT_FALSE(answer->contents()[0].rejected); |
| const MediaContentDescription* acd = |
| answer->contents()[0].media_description(); |
| ASSERT_EQ(1u, acd->streams().size()); |
| EXPECT_EQ(kAudioTrack1, acd->streams()[0].id); |
| EXPECT_EQ(RtpTransceiverDirection::kSendRecv, acd->direction()); |
| |
| EXPECT_FALSE(answer->contents()[1].rejected); |
| const MediaContentDescription* vcd = |
| answer->contents()[1].media_description(); |
| ASSERT_EQ(1u, vcd->streams().size()); |
| EXPECT_EQ(kVideoTrack1, vcd->streams()[0].id); |
| EXPECT_EQ(RtpTransceiverDirection::kSendRecv, vcd->direction()); |
| |
| EXPECT_FALSE(answer->contents()[2].rejected); |
| acd = answer->contents()[2].media_description(); |
| ASSERT_EQ(1u, acd->streams().size()); |
| EXPECT_EQ(kAudioTrack2, acd->streams()[0].id); |
| EXPECT_EQ(RtpTransceiverDirection::kSendRecv, acd->direction()); |
| |
| EXPECT_FALSE(answer->contents()[3].rejected); |
| vcd = answer->contents()[3].media_description(); |
| ASSERT_EQ(1u, vcd->streams().size()); |
| EXPECT_EQ(kVideoTrack2, vcd->streams()[0].id); |
| EXPECT_EQ(RtpTransceiverDirection::kSendRecv, vcd->direction()); |
| } |
| |
| // Test that the media section will be rejected in offer if the corresponding |
| // MediaDescriptionOptions is stopped by the offerer. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| CreateOfferWithMediaSectionStoppedByOfferer) { |
| // Create an offer with two audio sections and one of them is stopped. |
| MediaSessionOptions offer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &offer_opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio2", |
| RtpTransceiverDirection::kInactive, kStopped, |
| &offer_opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(2u, offer->contents().size()); |
| EXPECT_FALSE(offer->contents()[0].rejected); |
| EXPECT_TRUE(offer->contents()[1].rejected); |
| } |
| |
| // Test that the media section will be rejected in answer if the corresponding |
| // MediaDescriptionOptions is stopped by the offerer. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| CreateAnswerWithMediaSectionStoppedByOfferer) { |
| // Create an offer with two audio sections and one of them is stopped. |
| MediaSessionOptions offer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &offer_opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio2", |
| RtpTransceiverDirection::kInactive, kStopped, |
| &offer_opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(2u, offer->contents().size()); |
| EXPECT_FALSE(offer->contents()[0].rejected); |
| EXPECT_TRUE(offer->contents()[1].rejected); |
| |
| // Create an answer based on the offer. |
| MediaSessionOptions answer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &answer_opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio2", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &answer_opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, nullptr).MoveValue(); |
| ASSERT_EQ(2u, answer->contents().size()); |
| EXPECT_FALSE(answer->contents()[0].rejected); |
| EXPECT_TRUE(answer->contents()[1].rejected); |
| } |
| |
| // Test that the media section will be rejected in answer if the corresponding |
| // MediaDescriptionOptions is stopped by the answerer. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| CreateAnswerWithMediaSectionRejectedByAnswerer) { |
| // Create an offer with two audio sections. |
| MediaSessionOptions offer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &offer_opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio2", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &offer_opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(2u, offer->contents().size()); |
| ASSERT_FALSE(offer->contents()[0].rejected); |
| ASSERT_FALSE(offer->contents()[1].rejected); |
| |
| // The answerer rejects one of the audio sections. |
| MediaSessionOptions answer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &answer_opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio2", |
| RtpTransceiverDirection::kInactive, kStopped, |
| &answer_opts); |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), answer_opts, nullptr).MoveValue(); |
| ASSERT_EQ(2u, answer->contents().size()); |
| EXPECT_FALSE(answer->contents()[0].rejected); |
| EXPECT_TRUE(answer->contents()[1].rejected); |
| |
| // The TransportInfo of the rejected m= section is expected to be added in the |
| // answer. |
| EXPECT_EQ(offer->transport_infos().size(), answer->transport_infos().size()); |
| } |
| |
| // Test the generated media sections has the same order of the |
| // corresponding MediaDescriptionOptions. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| CreateOfferRespectsMediaDescriptionOptionsOrder) { |
| MediaSessionOptions opts; |
| // This tests put video section first because normally audio comes first by |
| // default. |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(2u, offer->contents().size()); |
| EXPECT_EQ("video", offer->contents()[0].name); |
| EXPECT_EQ("audio", offer->contents()[1].name); |
| } |
| |
| // Test that different media sections using the same codec have same payload |
| // type. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| PayloadTypesSharedByMediaSectionsOfSameType) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video2", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| // Create an offer with two video sections using same codecs. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(2u, offer->contents().size()); |
| const MediaContentDescription* vcd1 = |
| offer->contents()[0].media_description(); |
| const MediaContentDescription* vcd2 = |
| offer->contents()[1].media_description(); |
| EXPECT_EQ(vcd1->codecs().size(), vcd2->codecs().size()); |
| ASSERT_EQ(2u, vcd1->codecs().size()); |
| EXPECT_EQ(vcd1->codecs()[0].name, vcd2->codecs()[0].name); |
| EXPECT_EQ(vcd1->codecs()[0].id, vcd2->codecs()[0].id); |
| EXPECT_EQ(vcd1->codecs()[1].name, vcd2->codecs()[1].name); |
| EXPECT_EQ(vcd1->codecs()[1].id, vcd2->codecs()[1].id); |
| |
| // Create answer and negotiate the codecs. |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| ASSERT_TRUE(answer); |
| ASSERT_EQ(2u, answer->contents().size()); |
| vcd1 = answer->contents()[0].media_description(); |
| vcd2 = answer->contents()[1].media_description(); |
| EXPECT_EQ(vcd1->codecs().size(), vcd2->codecs().size()); |
| ASSERT_EQ(1u, vcd1->codecs().size()); |
| EXPECT_EQ(vcd1->codecs()[0].name, vcd2->codecs()[0].name); |
| EXPECT_EQ(vcd1->codecs()[0].id, vcd2->codecs()[0].id); |
| } |
| |
| #ifdef RTC_ENABLE_H265 |
| // Test verifying that negotiating codecs with the same tx-mode retains the |
| // tx-mode value. |
| TEST_F(MediaSessionDescriptionFactoryTest, H265TxModeIsEqualRetainIt) { |
| std::vector f1_codecs = {CreateVideoCodec(96, "H265")}; |
| f1_codecs.back().tx_mode = "mrst"; |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::vector f2_codecs = {CreateVideoCodec(96, "H265")}; |
| f2_codecs.back().tx_mode = "mrst"; |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| |
| // Create an offer with two video sections using same codecs. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(1u, offer->contents().size()); |
| const MediaContentDescription* vcd1 = |
| offer->contents()[0].media_description(); |
| ASSERT_EQ(1u, vcd1->codecs().size()); |
| EXPECT_EQ(vcd1->codecs()[0].tx_mode, "mrst"); |
| |
| // Create answer and negotiate the codecs. |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| ASSERT_TRUE(answer); |
| ASSERT_EQ(1u, answer->contents().size()); |
| vcd1 = answer->contents()[0].media_description(); |
| ASSERT_EQ(1u, vcd1->codecs().size()); |
| EXPECT_EQ(vcd1->codecs()[0].tx_mode, "mrst"); |
| } |
| |
| // Test verifying that negotiating codecs with different tx_mode removes |
| // the tx_mode value. |
| TEST_F(MediaSessionDescriptionFactoryTest, H265TxModeIsDifferentDropCodecs) { |
| std::vector f1_codecs = {CreateVideoCodec(96, "H265")}; |
| f1_codecs.back().tx_mode = "mrst"; |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::vector f2_codecs = {CreateVideoCodec(96, "H265")}; |
| f2_codecs.back().tx_mode = "mrmt"; |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| |
| // Create an offer with two video sections using same codecs. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(1u, offer->contents().size()); |
| const VideoContentDescription* vcd1 = |
| offer->contents()[0].media_description()->as_video(); |
| ASSERT_EQ(1u, vcd1->codecs().size()); |
| EXPECT_EQ(vcd1->codecs()[0].tx_mode, "mrst"); |
| |
| // Create answer and negotiate the codecs. |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| ASSERT_TRUE(answer); |
| ASSERT_EQ(1u, answer->contents().size()); |
| vcd1 = answer->contents()[0].media_description()->as_video(); |
| ASSERT_EQ(1u, vcd1->codecs().size()); |
| EXPECT_EQ(vcd1->codecs()[0].tx_mode, absl::nullopt); |
| } |
| #endif |
| |
| // Test verifying that negotiating codecs with the same packetization retains |
| // the packetization value. |
| TEST_F(MediaSessionDescriptionFactoryTest, PacketizationIsEqual) { |
| std::vector f1_codecs = {CreateVideoCodec(96, "H264")}; |
| f1_codecs.back().packetization = "raw"; |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::vector f2_codecs = {CreateVideoCodec(96, "H264")}; |
| f2_codecs.back().packetization = "raw"; |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| |
| // Create an offer with two video sections using same codecs. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(1u, offer->contents().size()); |
| const MediaContentDescription* vcd1 = |
| offer->contents()[0].media_description(); |
| ASSERT_EQ(1u, vcd1->codecs().size()); |
| EXPECT_EQ(vcd1->codecs()[0].packetization, "raw"); |
| |
| // Create answer and negotiate the codecs. |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| ASSERT_TRUE(answer); |
| ASSERT_EQ(1u, answer->contents().size()); |
| vcd1 = answer->contents()[0].media_description(); |
| ASSERT_EQ(1u, vcd1->codecs().size()); |
| EXPECT_EQ(vcd1->codecs()[0].packetization, "raw"); |
| } |
| |
| // Test verifying that negotiating codecs with different packetization removes |
| // the packetization value. |
| TEST_F(MediaSessionDescriptionFactoryTest, PacketizationIsDifferent) { |
| std::vector f1_codecs = {CreateVideoCodec(96, "H264")}; |
| f1_codecs.back().packetization = "raw"; |
| f1_.set_video_codecs(f1_codecs, f1_codecs); |
| |
| std::vector f2_codecs = {CreateVideoCodec(96, "H264")}; |
| f2_codecs.back().packetization = "notraw"; |
| f2_.set_video_codecs(f2_codecs, f2_codecs); |
| |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| |
| // Create an offer with two video sections using same codecs. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(1u, offer->contents().size()); |
| const VideoContentDescription* vcd1 = |
| offer->contents()[0].media_description()->as_video(); |
| ASSERT_EQ(1u, vcd1->codecs().size()); |
| EXPECT_EQ(vcd1->codecs()[0].packetization, "raw"); |
| |
| // Create answer and negotiate the codecs. |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| ASSERT_TRUE(answer); |
| ASSERT_EQ(1u, answer->contents().size()); |
| vcd1 = answer->contents()[0].media_description()->as_video(); |
| ASSERT_EQ(1u, vcd1->codecs().size()); |
| EXPECT_EQ(vcd1->codecs()[0].packetization, absl::nullopt); |
| } |
| |
| // Test that the codec preference order per media section is respected in |
| // subsequent offer. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| CreateOfferRespectsCodecPreferenceOrder) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video2", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| // Create an offer with two video sections using same codecs. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(2u, offer->contents().size()); |
| MediaContentDescription* vcd1 = offer->contents()[0].media_description(); |
| const MediaContentDescription* vcd2 = |
| offer->contents()[1].media_description(); |
| auto video_codecs = MAKE_VECTOR(kVideoCodecs1); |
| EXPECT_EQ(video_codecs, vcd1->codecs()); |
| EXPECT_EQ(video_codecs, vcd2->codecs()); |
| |
| // Change the codec preference of the first video section and create a |
| // follow-up offer. |
| auto video_codecs_reverse = MAKE_VECTOR(kVideoCodecs1Reverse); |
| vcd1->set_codecs(video_codecs_reverse); |
| std::unique_ptr<SessionDescription> updated_offer( |
| f1_.CreateOfferOrError(opts, offer.get()).MoveValue()); |
| vcd1 = updated_offer->contents()[0].media_description(); |
| vcd2 = updated_offer->contents()[1].media_description(); |
| // The video codec preference order should be respected. |
| EXPECT_EQ(video_codecs_reverse, vcd1->codecs()); |
| EXPECT_EQ(video_codecs, vcd2->codecs()); |
| } |
| |
| // Test that the codec preference order per media section is respected in |
| // the answer. |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| CreateAnswerRespectsCodecPreferenceOrder) { |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video1", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video2", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| // Create an offer with two video sections using same codecs. |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| ASSERT_EQ(2u, offer->contents().size()); |
| MediaContentDescription* vcd1 = offer->contents()[0].media_description(); |
| const MediaContentDescription* vcd2 = |
| offer->contents()[1].media_description(); |
| auto video_codecs = MAKE_VECTOR(kVideoCodecs1); |
| EXPECT_EQ(video_codecs, vcd1->codecs()); |
| EXPECT_EQ(video_codecs, vcd2->codecs()); |
| |
| // Change the codec preference of the first video section and create an |
| // answer. |
| auto video_codecs_reverse = MAKE_VECTOR(kVideoCodecs1Reverse); |
| vcd1->set_codecs(video_codecs_reverse); |
| std::unique_ptr<SessionDescription> answer = |
| f1_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| vcd1 = answer->contents()[0].media_description(); |
| vcd2 = answer->contents()[1].media_description(); |
| // The video codec preference order should be respected. |
| EXPECT_EQ(video_codecs_reverse, vcd1->codecs()); |
| EXPECT_EQ(video_codecs, vcd2->codecs()); |
| } |
| |
| // Test that when creating an answer, the codecs use local parameters instead of |
| // the remote ones. |
| TEST_F(MediaSessionDescriptionFactoryTest, CreateAnswerWithLocalCodecParams) { |
| const std::string audio_param_name = "audio_param"; |
| const std::string audio_value1 = "audio_v1"; |
| const std::string audio_value2 = "audio_v2"; |
| const std::string video_param_name = "video_param"; |
| const std::string video_value1 = "video_v1"; |
| const std::string video_value2 = "video_v2"; |
| |
| auto audio_codecs1 = MAKE_VECTOR(kAudioCodecs1); |
| auto audio_codecs2 = MAKE_VECTOR(kAudioCodecs1); |
| auto video_codecs1 = MAKE_VECTOR(kVideoCodecs1); |
| auto video_codecs2 = MAKE_VECTOR(kVideoCodecs1); |
| |
| // Set the parameters for codecs. |
| audio_codecs1[0].SetParam(audio_param_name, audio_value1); |
| video_codecs1[0].SetParam(video_param_name, video_value1); |
| audio_codecs2[0].SetParam(audio_param_name, audio_value2); |
| video_codecs2[0].SetParam(video_param_name, video_value2); |
| |
| f1_.set_audio_codecs(audio_codecs1, audio_codecs1); |
| f1_.set_video_codecs(video_codecs1, video_codecs1); |
| f2_.set_audio_codecs(audio_codecs2, audio_codecs2); |
| f2_.set_video_codecs(video_codecs2, video_codecs2); |
| |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| auto offer_acd = offer->contents()[0].media_description(); |
| auto offer_vcd = offer->contents()[1].media_description(); |
| std::string value; |
| EXPECT_TRUE(offer_acd->codecs()[0].GetParam(audio_param_name, &value)); |
| EXPECT_EQ(audio_value1, value); |
| EXPECT_TRUE(offer_vcd->codecs()[0].GetParam(video_param_name, &value)); |
| EXPECT_EQ(video_value1, value); |
| |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| ASSERT_TRUE(answer); |
| auto answer_acd = answer->contents()[0].media_description(); |
| auto answer_vcd = answer->contents()[1].media_description(); |
| // Use the parameters from the local codecs. |
| EXPECT_TRUE(answer_acd->codecs()[0].GetParam(audio_param_name, &value)); |
| EXPECT_EQ(audio_value2, value); |
| EXPECT_TRUE(answer_vcd->codecs()[0].GetParam(video_param_name, &value)); |
| EXPECT_EQ(video_value2, value); |
| } |
| |
| // Test that matching packetization-mode is part of the criteria for matching |
| // H264 codecs (in addition to profile-level-id). Previously, this was not the |
| // case, so the first H264 codec with the same profile-level-id would match and |
| // the payload type in the answer would be incorrect. |
| // This is a regression test for bugs.webrtc.org/8808 |
| TEST_F(MediaSessionDescriptionFactoryTest, |
| H264MatchCriteriaIncludesPacketizationMode) { |
| // Create two H264 codecs with the same profile level ID and different |
| // packetization modes. |
| VideoCodec h264_pm0 = CreateVideoCodec(96, "H264"); |
| h264_pm0.params[kH264FmtpProfileLevelId] = "42c01f"; |
| h264_pm0.params[kH264FmtpPacketizationMode] = "0"; |
| VideoCodec h264_pm1 = CreateVideoCodec(97, "H264"); |
| h264_pm1.params[kH264FmtpProfileLevelId] = "42c01f"; |
| h264_pm1.params[kH264FmtpPacketizationMode] = "1"; |
| |
| // Offerer will send both codecs, answerer should choose the one with matching |
| // packetization mode (and not the first one it sees). |
| f1_.set_video_codecs({h264_pm0, h264_pm1}, {h264_pm0, h264_pm1}); |
| f2_.set_video_codecs({h264_pm1}, {h264_pm1}); |
| |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_VIDEO, "video", |
| RtpTransceiverDirection::kSendRecv, kActive, |
| &opts); |
| |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer); |
| |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| ASSERT_TRUE(answer); |
| |
| // Answer should have one negotiated codec with packetization-mode=1 using the |
| // offered payload type. |
| ASSERT_EQ(1u, answer->contents().size()); |
| auto answer_vcd = answer->contents()[0].media_description(); |
| ASSERT_EQ(1u, answer_vcd->codecs().size()); |
| auto answer_codec = answer_vcd->codecs()[0]; |
| EXPECT_EQ(h264_pm1.id, answer_codec.id); |
| } |
| |
| class MediaProtocolTest : public testing::TestWithParam<const char*> { |
| public: |
| MediaProtocolTest() |
| : tdf1_(field_trials_), |
| tdf2_(field_trials_), |
| f1_(nullptr, false, &ssrc_generator1, &tdf1_), |
| f2_(nullptr, false, &ssrc_generator2, &tdf2_) { |
| f1_.set_audio_codecs(MAKE_VECTOR(kAudioCodecs1), |
| MAKE_VECTOR(kAudioCodecs1)); |
| f1_.set_video_codecs(MAKE_VECTOR(kVideoCodecs1), |
| MAKE_VECTOR(kVideoCodecs1)); |
| f2_.set_audio_codecs(MAKE_VECTOR(kAudioCodecs2), |
| MAKE_VECTOR(kAudioCodecs2)); |
| f2_.set_video_codecs(MAKE_VECTOR(kVideoCodecs2), |
| MAKE_VECTOR(kVideoCodecs2)); |
| tdf1_.set_certificate(rtc::RTCCertificate::Create( |
| std::unique_ptr<rtc::SSLIdentity>(new rtc::FakeSSLIdentity("id1")))); |
| tdf2_.set_certificate(rtc::RTCCertificate::Create( |
| std::unique_ptr<rtc::SSLIdentity>(new rtc::FakeSSLIdentity("id2")))); |
| } |
| |
| protected: |
| webrtc::test::ScopedKeyValueConfig field_trials_; |
| TransportDescriptionFactory tdf1_; |
| TransportDescriptionFactory tdf2_; |
| MediaSessionDescriptionFactory f1_; |
| MediaSessionDescriptionFactory f2_; |
| UniqueRandomIdGenerator ssrc_generator1; |
| UniqueRandomIdGenerator ssrc_generator2; |
| }; |
| |
| TEST_P(MediaProtocolTest, TestAudioVideoAcceptance) { |
| MediaSessionOptions opts; |
| AddAudioVideoSections(RtpTransceiverDirection::kRecvOnly, &opts); |
| std::unique_ptr<SessionDescription> offer = |
| f1_.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| // Set the protocol for all the contents. |
| for (auto& content : offer.get()->contents()) { |
| content.media_description()->set_protocol(GetParam()); |
| } |
| std::unique_ptr<SessionDescription> answer = |
| f2_.CreateAnswerOrError(offer.get(), opts, nullptr).MoveValue(); |
| const ContentInfo* ac = answer->GetContentByName("audio"); |
| const ContentInfo* vc = answer->GetContentByName("video"); |
| ASSERT_TRUE(ac); |
| ASSERT_TRUE(vc); |
| EXPECT_FALSE(ac->rejected); // the offer is accepted |
| EXPECT_FALSE(vc->rejected); |
| const MediaContentDescription* acd = ac->media_description(); |
| const MediaContentDescription* vcd = vc->media_description(); |
| EXPECT_EQ(GetParam(), acd->protocol()); |
| EXPECT_EQ(GetParam(), vcd->protocol()); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(MediaProtocolPatternTest, |
| MediaProtocolTest, |
| ValuesIn(kMediaProtocols)); |
| INSTANTIATE_TEST_SUITE_P(MediaProtocolDtlsPatternTest, |
| MediaProtocolTest, |
| ValuesIn(kMediaProtocolsDtls)); |
| |
| TEST_F(MediaSessionDescriptionFactoryTest, TestSetAudioCodecs) { |
| webrtc::test::ScopedKeyValueConfig field_trials; |
| TransportDescriptionFactory tdf(field_trials); |
| tdf.set_certificate(rtc::RTCCertificate::Create( |
| std::unique_ptr<rtc::SSLIdentity>(new rtc::FakeSSLIdentity("id")))); |
| |
| UniqueRandomIdGenerator ssrc_generator; |
| MediaSessionDescriptionFactory sf(nullptr, false, &ssrc_generator, &tdf); |
| std::vector<AudioCodec> send_codecs = MAKE_VECTOR(kAudioCodecs1); |
| std::vector<AudioCodec> recv_codecs = MAKE_VECTOR(kAudioCodecs2); |
| |
| // The merged list of codecs should contain any send codecs that are also |
| // nominally in the receive codecs list. Payload types should be picked from |
| // the send codecs and a number-of-channels of 0 and 1 should be equivalent |
| // (set to 1). This equals what happens when the send codecs are used in an |
| // offer and the receive codecs are used in the following answer. |
| const std::vector<AudioCodec> sendrecv_codecs = |
| MAKE_VECTOR(kAudioCodecsAnswer); |
| const std::vector<AudioCodec> no_codecs; |
| |
| RTC_CHECK_EQ(send_codecs[2].name, "iLBC") |
| << "Please don't change shared test data!"; |
| RTC_CHECK_EQ(recv_codecs[2].name, "iLBC") |
| << "Please don't change shared test data!"; |
| // Alter iLBC send codec to have zero channels, to test that that is handled |
| // properly. |
| send_codecs[2].channels = 0; |
| |
| // Alter iLBC receive codec to be lowercase, to test that case conversions |
| // are handled properly. |
| recv_codecs[2].name = "ilbc"; |
| |
| // Test proper merge |
| sf.set_audio_codecs(send_codecs, recv_codecs); |
| EXPECT_EQ(send_codecs, sf.audio_send_codecs()); |
| EXPECT_EQ(recv_codecs, sf.audio_recv_codecs()); |
| EXPECT_EQ(sendrecv_codecs, sf.audio_sendrecv_codecs()); |
| |
| // Test empty send codecs list |
| sf.set_audio_codecs(no_codecs, recv_codecs); |
| EXPECT_EQ(no_codecs, sf.audio_send_codecs()); |
| EXPECT_EQ(recv_codecs, sf.audio_recv_codecs()); |
| EXPECT_EQ(no_codecs, sf.audio_sendrecv_codecs()); |
| |
| // Test empty recv codecs list |
| sf.set_audio_codecs(send_codecs, no_codecs); |
| EXPECT_EQ(send_codecs, sf.audio_send_codecs()); |
| EXPECT_EQ(no_codecs, sf.audio_recv_codecs()); |
| EXPECT_EQ(no_codecs, sf.audio_sendrecv_codecs()); |
| |
| // Test all empty codec lists |
| sf.set_audio_codecs(no_codecs, no_codecs); |
| EXPECT_EQ(no_codecs, sf.audio_send_codecs()); |
| EXPECT_EQ(no_codecs, sf.audio_recv_codecs()); |
| EXPECT_EQ(no_codecs, sf.audio_sendrecv_codecs()); |
| } |
| |
| // Compare the two vectors of codecs ignoring the payload type. |
| bool CodecsMatch(const std::vector<Codec>& codecs1, |
| const std::vector<Codec>& codecs2) { |
| if (codecs1.size() != codecs2.size()) { |
| return false; |
| } |
| |
| for (size_t i = 0; i < codecs1.size(); ++i) { |
| if (!codecs1[i].Matches(codecs2[i])) { |
| return false; |
| } |
| } |
| return true; |
| } |
| |
| void TestAudioCodecsOffer(RtpTransceiverDirection direction) { |
| webrtc::test::ScopedKeyValueConfig field_trials; |
| TransportDescriptionFactory tdf(field_trials); |
| tdf.set_certificate(rtc::RTCCertificate::Create( |
| std::unique_ptr<rtc::SSLIdentity>(new rtc::FakeSSLIdentity("id")))); |
| |
| UniqueRandomIdGenerator ssrc_generator; |
| MediaSessionDescriptionFactory sf(nullptr, false, &ssrc_generator, &tdf); |
| const std::vector<AudioCodec> send_codecs = MAKE_VECTOR(kAudioCodecs1); |
| const std::vector<AudioCodec> recv_codecs = MAKE_VECTOR(kAudioCodecs2); |
| const std::vector<AudioCodec> sendrecv_codecs = |
| MAKE_VECTOR(kAudioCodecsAnswer); |
| sf.set_audio_codecs(send_codecs, recv_codecs); |
| |
| MediaSessionOptions opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", direction, kActive, |
| &opts); |
| |
| if (direction == RtpTransceiverDirection::kSendRecv || |
| direction == RtpTransceiverDirection::kSendOnly) { |
| AttachSenderToMediaDescriptionOptions( |
| "audio", MEDIA_TYPE_AUDIO, kAudioTrack1, {kMediaStream1}, 1, &opts); |
| } |
| |
| std::unique_ptr<SessionDescription> offer = |
| sf.CreateOfferOrError(opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| ContentInfo* ac = offer->GetContentByName("audio"); |
| |
| // If the factory didn't add any audio content to the offer, we cannot check |
| // that the codecs put in are right. This happens when we neither want to |
| // send nor receive audio. The checks are still in place if at some point |
| // we'd instead create an inactive stream. |
| if (ac) { |
| MediaContentDescription* acd = ac->media_description(); |
| // sendrecv and inactive should both present lists as if the channel was |
| // to be used for sending and receiving. Inactive essentially means it |
| // might eventually be used anything, but we don't know more at this |
| // moment. |
| if (acd->direction() == RtpTransceiverDirection::kSendOnly) { |
| EXPECT_TRUE(CodecsMatch(send_codecs, acd->codecs())); |
| } else if (acd->direction() == RtpTransceiverDirection::kRecvOnly) { |
| EXPECT_TRUE(CodecsMatch(recv_codecs, acd->codecs())); |
| } else { |
| EXPECT_TRUE(CodecsMatch(sendrecv_codecs, acd->codecs())); |
| } |
| } |
| } |
| |
| const AudioCodec kOfferAnswerCodecs[] = { |
| CreateAudioCodec(0, "codec0", 16000, 1), |
| CreateAudioCodec(1, "codec1", 8000, 1), |
| CreateAudioCodec(2, "codec2", 8000, 1), |
| CreateAudioCodec(3, "codec3", 8000, 1), |
| CreateAudioCodec(4, "codec4", 8000, 2), |
| CreateAudioCodec(5, "codec5", 32000, 1), |
| CreateAudioCodec(6, "codec6", 48000, 1)}; |
| |
| /* The codecs groups below are chosen as per the matrix below. The objective |
| * is to have different sets of codecs in the inputs, to get unique sets of |
| * codecs after negotiation, depending on offer and answer communication |
| * directions. One-way directions in the offer should either result in the |
| * opposite direction in the answer, or an inactive answer. Regardless, the |
| * choice of codecs should be as if the answer contained the opposite |
| * direction. Inactive offers should be treated as sendrecv/sendrecv. |
| * |
| * | Offer | Answer | Result |
| * codec|send recv sr | send recv sr | s/r r/s sr/s sr/r sr/sr |
| * 0 | x - - | - x - | x - - - - |
| * 1 | x x x | - x - | x - - x - |
| * 2 | - x - | x - - | - x - - - |
| * 3 | x x x | x - - | - x x - - |
| * 4 | - x - | x x x | - x - - - |
| * 5 | x - - | x x x | x - - - - |
| * 6 | x x x | x x x | x x x x x |
| */ |
| // Codecs used by offerer in the AudioCodecsAnswerTest |
| const int kOfferSendCodecs[] = {0, 1, 3, 5, 6}; |
| const int kOfferRecvCodecs[] = {1, 2, 3, 4, 6}; |
| // Codecs used in the answerer in the AudioCodecsAnswerTest. The order is |
| // jumbled to catch the answer not following the order in the offer. |
| const int kAnswerSendCodecs[] = {6, 5, 2, 3, 4}; |
| const int kAnswerRecvCodecs[] = {6, 5, 4, 1, 0}; |
| // The resulting sets of codecs in the answer in the AudioCodecsAnswerTest |
| const int kResultSend_RecvCodecs[] = {0, 1, 5, 6}; |
| const int kResultRecv_SendCodecs[] = {2, 3, 4, 6}; |
| const int kResultSendrecv_SendCodecs[] = {3, 6}; |
| const int kResultSendrecv_RecvCodecs[] = {1, 6}; |
| const int kResultSendrecv_SendrecvCodecs[] = {6}; |
| |
| template <typename T, int IDXS> |
| std::vector<T> VectorFromIndices(const T* array, const int (&indices)[IDXS]) { |
| std::vector<T> out; |
| out.reserve(IDXS); |
| for (int idx : indices) |
| out.push_back(array[idx]); |
| |
| return out; |
| } |
| |
| void TestAudioCodecsAnswer(RtpTransceiverDirection offer_direction, |
| RtpTransceiverDirection answer_direction, |
| bool add_legacy_stream) { |
| webrtc::test::ScopedKeyValueConfig field_trials; |
| TransportDescriptionFactory offer_tdf(field_trials); |
| TransportDescriptionFactory answer_tdf(field_trials); |
| offer_tdf.set_certificate(rtc::RTCCertificate::Create( |
| std::unique_ptr<rtc::SSLIdentity>(new rtc::FakeSSLIdentity("offer_id")))); |
| answer_tdf.set_certificate( |
| rtc::RTCCertificate::Create(std::unique_ptr<rtc::SSLIdentity>( |
| new rtc::FakeSSLIdentity("answer_id")))); |
| UniqueRandomIdGenerator ssrc_generator1, ssrc_generator2; |
| MediaSessionDescriptionFactory offer_factory(nullptr, false, &ssrc_generator1, |
| &offer_tdf); |
| MediaSessionDescriptionFactory answer_factory(nullptr, false, |
| &ssrc_generator2, &answer_tdf); |
| |
| offer_factory.set_audio_codecs( |
| VectorFromIndices(kOfferAnswerCodecs, kOfferSendCodecs), |
| VectorFromIndices(kOfferAnswerCodecs, kOfferRecvCodecs)); |
| answer_factory.set_audio_codecs( |
| VectorFromIndices(kOfferAnswerCodecs, kAnswerSendCodecs), |
| VectorFromIndices(kOfferAnswerCodecs, kAnswerRecvCodecs)); |
| |
| MediaSessionOptions offer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", offer_direction, |
| kActive, &offer_opts); |
| |
| if (webrtc::RtpTransceiverDirectionHasSend(offer_direction)) { |
| AttachSenderToMediaDescriptionOptions("audio", MEDIA_TYPE_AUDIO, |
| kAudioTrack1, {kMediaStream1}, 1, |
| &offer_opts); |
| } |
| |
| std::unique_ptr<SessionDescription> offer = |
| offer_factory.CreateOfferOrError(offer_opts, nullptr).MoveValue(); |
| ASSERT_TRUE(offer.get()); |
| |
| MediaSessionOptions answer_opts; |
| AddMediaDescriptionOptions(MEDIA_TYPE_AUDIO, "audio", answer_direction, |
| kActive, &answer_opts); |
| |
| if (webrtc::RtpTransceiverDirectionHasSend(answer_direction)) { |
| AttachSenderToMediaDescriptionOptions("audio", MEDIA_TYPE_AUDIO, |
| kAudioTrack1, {kMediaStream1}, 1, |
| &answer_opts); |
| } |
| std::unique_ptr<SessionDescription> answer = |
| answer_factory.CreateAnswerOrError(offer.get(), answer_opts, nullptr) |
| .MoveValue(); |
| const ContentInfo* ac = answer->GetContentByName("audio"); |
| |
| // If the factory didn't add any audio content to the answer, we cannot |
| // check that the codecs put in are right. This happens when we neither want |
| // to send nor receive audio. The checks are still in place if at some point |
| // we'd instead create an inactive stream. |
| if (ac) { |
| ASSERT_EQ(MEDIA_TYPE_AUDIO, ac->media_description()->type()); |
| const MediaContentDescription* acd = ac->media_description(); |
| |
| std::vector<AudioCodec> target_codecs; |
| // For offers with sendrecv or inactive, we should never reply with more |
| // codecs than offered, with these codec sets. |
| switch (offer_direction) { |
| case RtpTransceiverDirection::kInactive: |
| target_codecs = VectorFromIndices(kOfferAnswerCodecs, |
| kResultSendrecv_SendrecvCodecs); |
| break; |
| case RtpTransceiverDirection::kSendOnly: |
| target_codecs = |
| VectorFromIndices(kOfferAnswerCodecs, kResultSend_RecvCodecs); |
| break; |
| case RtpTransceiverDirection::kRecvOnly: |
| target_codecs = |
| VectorFromIndices(kOfferAnswerCodecs, kResultRecv_SendCodecs); |
| break; |
| case RtpTransceiverDirection::kSendRecv: |
| if (acd->direction() == RtpTransceiverDirection::kSendOnly) { |
| target_codecs = |
| VectorFromIndices(kOfferAnswerCodecs, kResultSendrecv_SendCodecs); |
| } else if (acd->direction() == RtpTransceiverDirection::kRecvOnly) { |
| target_codecs = |
| VectorFromIndices(kOfferAnswerCodecs, kResultSendrecv_RecvCodecs); |
| } else { |
| target_codecs = VectorFromIndices(kOfferAnswerCodecs, |
| kResultSendrecv_SendrecvCodecs); |
| } |
| break; |
| case RtpTransceiverDirection::kStopped: |
| // This does not happen in any current test. |
| RTC_DCHECK_NOTREACHED(); |
| } |
| |
| auto format_codecs = [](const std::vector<AudioCodec>& codecs) { |
| rtc::StringBuilder os; |
| bool first = true; |
| os << "{"; |
| for (const auto& c : codecs) { |
| os << (first ? " " : ", ") << c.id; |
| first = false; |
| } |
| os << " }"; |
| return os.Release(); |
| }; |
| |
| EXPECT_TRUE(acd->codecs() == target_codecs) |
| << "Expected: " << format_codecs(target_codecs) |
| << ", got: " << format_codecs(acd->codecs()) << "; Offered: " |
| << webrtc::RtpTransceiverDirectionToString(offer_direction) |
| << ", answerer wants: " |
| << webrtc::RtpTransceiverDirectionToString(answer_direction) |
| << "; got: " |
| << webrtc::RtpTransceiverDirectionToString(acd->direction()); |
| } else { |
| EXPECT_EQ(offer_direction, RtpTransceiverDirection::kInactive) |
| << "Only inactive offers are allowed to not generate any audio " |
| "content"; |
| } |
| } |
| |
| using AudioCodecsOfferTest = testing::TestWithParam<RtpTransceiverDirection>; |
| |
| TEST_P(AudioCodecsOfferTest, TestCodecsInOffer) { |
| TestAudioCodecsOffer(GetParam()); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(MediaSessionDescriptionFactoryTest, |
| AudioCodecsOfferTest, |
| Values(RtpTransceiverDirection::kSendOnly, |
| RtpTransceiverDirection::kRecvOnly, |
| RtpTransceiverDirection::kSendRecv, |
| RtpTransceiverDirection::kInactive)); |
| |
| using AudioCodecsAnswerTest = testing::TestWithParam< |
| std::tuple<RtpTransceiverDirection, RtpTransceiverDirection, bool>>; |
| |
| TEST_P(AudioCodecsAnswerTest, TestCodecsInAnswer) { |
| TestAudioCodecsAnswer(std::get<0>(GetParam()), std::get<1>(GetParam()), |
| std::get<2>(GetParam())); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(MediaSessionDescriptionFactoryTest, |
| AudioCodecsAnswerTest, |
| Combine(Values(RtpTransceiverDirection::kSendOnly, |
| RtpTransceiverDirection::kRecvOnly, |
| RtpTransceiverDirection::kSendRecv, |
| RtpTransceiverDirection::kInactive), |
| Values(RtpTransceiverDirection::kSendOnly, |
| RtpTransceiverDirection::kRecvOnly, |
| RtpTransceiverDirection::kSendRecv, |
| RtpTransceiverDirection::kInactive), |
| Bool())); |
| |
| } // namespace |
| } // namespace cricket |
