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f98dc105bae202b51e16c88308997d47fc842a5a
platform-external-webrtc/webrtc/pc/mediasession_unittest.cc
ossu dedfd28a52 Support for two audio codec lists down into WebRtcVoiceEngine. 
Added the plumbing necessary to get two different lists of codecs from
WebRtcVoiceEngine up to MediaSessionDescriptionFactory.

This should be the last step in this set of CLs. Once
https://codereview.webrtc.org/1991233004/ has landed, it's possible to
implement the ReceiveCodecs getter with the info from the
AudioDecoderFactory. The factory needs to be updated to actually
produce the correct list, as well.

BUG=webrtc:5805

Review-Url: https://codereview.webrtc.org/2013053002
Cr-Commit-Position: refs/heads/master@{#13131}
2016-06-14 14:12:46 +00:00

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/*
* 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 <memory>
#include <string>
#include <vector>
#include "webrtc/base/fakesslidentity.h"
#include "webrtc/base/gunit.h"
#include "webrtc/base/messagedigest.h"
#include "webrtc/base/ssladapter.h"
#include "webrtc/media/base/codec.h"
#include "webrtc/media/base/testutils.h"
#include "webrtc/p2p/base/p2pconstants.h"
#include "webrtc/p2p/base/transportdescription.h"
#include "webrtc/p2p/base/transportinfo.h"
#include "webrtc/pc/mediasession.h"
#include "webrtc/pc/srtpfilter.h"
#ifdef HAVE_SRTP
#define ASSERT_CRYPTO(cd, s, cs) \
ASSERT_EQ(cricket::CT_NONE, cd->crypto_required()); \
ASSERT_EQ(s, cd->cryptos().size()); \
ASSERT_EQ(std::string(cs), cd->cryptos()[0].cipher_suite)
#else
#define ASSERT_CRYPTO(cd, s, cs) \
ASSERT_EQ(cricket::CT_NONE, cd->crypto_required()); \
ASSERT_EQ(0U, cd->cryptos().size());
#endif
typedef std::vector<cricket::Candidate> Candidates;
using cricket::MediaContentDescription;
using cricket::MediaSessionDescriptionFactory;
using cricket::MediaContentDirection;
using cricket::MediaSessionOptions;
using cricket::MediaType;
using cricket::SessionDescription;
using cricket::SsrcGroup;
using cricket::StreamParams;
using cricket::StreamParamsVec;
using cricket::TransportDescription;
using cricket::TransportDescriptionFactory;
using cricket::TransportInfo;
using cricket::ContentInfo;
using cricket::CryptoParamsVec;
using cricket::AudioContentDescription;
using cricket::VideoContentDescription;
using cricket::DataContentDescription;
using cricket::GetFirstAudioContent;
using cricket::GetFirstVideoContent;
using cricket::GetFirstDataContent;
using cricket::GetFirstAudioContentDescription;
using cricket::GetFirstVideoContentDescription;
using cricket::GetFirstDataContentDescription;
using cricket::kAutoBandwidth;
using cricket::AudioCodec;
using cricket::VideoCodec;
using cricket::DataCodec;
using cricket::NS_JINGLE_RTP;
using cricket::MEDIA_TYPE_AUDIO;
using cricket::MEDIA_TYPE_VIDEO;
using cricket::MEDIA_TYPE_DATA;
using cricket::SEC_DISABLED;
using cricket::SEC_ENABLED;
using cricket::SEC_REQUIRED;
using rtc::CS_AES_CM_128_HMAC_SHA1_32;
using rtc::CS_AES_CM_128_HMAC_SHA1_80;
using webrtc::RtpExtension;
static const AudioCodec kAudioCodecs1[] = {
AudioCodec(103, "ISAC", 16000, -1, 1),
AudioCodec(102, "iLBC", 8000, 13300, 1),
AudioCodec(0, "PCMU", 8000, 64000, 1),
AudioCodec(8, "PCMA", 8000, 64000, 1),
AudioCodec(117, "red", 8000, 0, 1),
AudioCodec(107, "CN", 48000, 0, 1)};
static const AudioCodec kAudioCodecs2[] = {
AudioCodec(126, "speex", 16000, 22000, 1),
AudioCodec(0, "PCMU", 8000, 64000, 1),
AudioCodec(127, "iLBC", 8000, 13300, 1),
};
static const AudioCodec kAudioCodecsAnswer[] = {
AudioCodec(102, "iLBC", 8000, 13300, 1),
AudioCodec(0, "PCMU", 8000, 64000, 1),
};
static const VideoCodec kVideoCodecs1[] = {
VideoCodec(96, "H264-SVC", 320, 200, 30),
VideoCodec(97, "H264", 320, 200, 30)};
static const VideoCodec kVideoCodecs2[] = {
VideoCodec(126, "H264", 320, 200, 30),
VideoCodec(127, "H263", 320, 200, 30)};
static const VideoCodec kVideoCodecsAnswer[] = {
VideoCodec(97, "H264", 320, 200, 30)};
static const DataCodec kDataCodecs1[] = {DataCodec(98, "binary-data"),
DataCodec(99, "utf8-text")};
static const DataCodec kDataCodecs2[] = {DataCodec(126, "binary-data"),
DataCodec(127, "utf8-text")};
static const DataCodec kDataCodecsAnswer[] = {DataCodec(98, "binary-data"),
DataCodec(99, "utf8-text")};
static const RtpExtension kAudioRtpExtension1[] = {
RtpExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 8),
RtpExtension("http://google.com/testing/audio_something", 10),
};
static 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),
};
static const RtpExtension kAudioRtpExtension3[] = {
RtpExtension("http://google.com/testing/audio_something", 2),
RtpExtension("http://google.com/testing/both_audio_and_video", 3),
};
static const RtpExtension kAudioRtpExtensionAnswer[] = {
RtpExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 8),
};
static const RtpExtension kVideoRtpExtension1[] = {
RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 14),
RtpExtension("http://google.com/testing/video_something", 13),
};
static 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),
};
static const RtpExtension kVideoRtpExtension3[] = {
RtpExtension("http://google.com/testing/video_something", 4),
RtpExtension("http://google.com/testing/both_audio_and_video", 5),
};
static const RtpExtension kVideoRtpExtensionAnswer[] = {
RtpExtension("urn:ietf:params:rtp-hdrext:toffset", 14),
};
static const uint32_t kSimulcastParamsSsrc[] = {10, 11, 20, 21, 30, 31};
static const uint32_t kSimSsrc[] = {10, 20, 30};
static const uint32_t kFec1Ssrc[] = {10, 11};
static const uint32_t kFec2Ssrc[] = {20, 21};
static const uint32_t kFec3Ssrc[] = {30, 31};
static const char kMediaStream1[] = "stream_1";
static const char kMediaStream2[] = "stream_2";
static const char kVideoTrack1[] = "video_1";
static const char kVideoTrack2[] = "video_2";
static const char kAudioTrack1[] = "audio_1";
static const char kAudioTrack2[] = "audio_2";
static const char kAudioTrack3[] = "audio_3";
static const char kDataTrack1[] = "data_1";
static const char kDataTrack2[] = "data_2";
static const char kDataTrack3[] = "data_3";
static const char* kMediaProtocols[] = {"RTP/AVP", "RTP/SAVP", "RTP/AVPF",
"RTP/SAVPF"};
static const char* kMediaProtocolsDtls[] = {
"TCP/TLS/RTP/SAVPF", "TCP/TLS/RTP/SAVP", "UDP/TLS/RTP/SAVPF",
"UDP/TLS/RTP/SAVP"};
static bool IsMediaContentOfType(const ContentInfo* content,
MediaType media_type) {
const MediaContentDescription* mdesc =
static_cast<const MediaContentDescription*>(content->description);
return mdesc && mdesc->type() == media_type;
}
static cricket::MediaContentDirection
GetMediaDirection(const ContentInfo* content) {
cricket::MediaContentDescription* desc =
reinterpret_cast<cricket::MediaContentDescription*>(content->description);
return desc->direction();
}
static void AddRtxCodec(const VideoCodec& rtx_codec,
std::vector<VideoCodec>* codecs) {
VideoCodec rtx;
ASSERT_FALSE(cricket::FindCodecById(*codecs, rtx_codec.id, &rtx));
codecs->push_back(rtx_codec);
}
template <class T>
static std::vector<std::string> GetCodecNames(const std::vector<T>& codecs) {
std::vector<std::string> codec_names;
for (const auto& codec : codecs) {
codec_names.push_back(codec.name);
}
return codec_names;
}
class MediaSessionDescriptionFactoryTest : public testing::Test {
public:
MediaSessionDescriptionFactoryTest()
: f1_(&tdf1_),
f2_(&tdf2_) {
f1_.set_audio_codecs(MAKE_VECTOR(kAudioCodecs1),
MAKE_VECTOR(kAudioCodecs1));
f1_.set_video_codecs(MAKE_VECTOR(kVideoCodecs1));
f1_.set_data_codecs(MAKE_VECTOR(kDataCodecs1));
f2_.set_audio_codecs(MAKE_VECTOR(kAudioCodecs2),
MAKE_VECTOR(kAudioCodecs2));
f2_.set_video_codecs(MAKE_VECTOR(kVideoCodecs2));
f2_.set_data_codecs(MAKE_VECTOR(kDataCodecs2));
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.sync_label = kMediaStream1;
StreamParamsVec video_streams;
video_streams.push_back(simulcast_params);
return video_streams;
}
bool CompareCryptoParams(const CryptoParamsVec& c1,
const CryptoParamsVec& c2) {
if (c1.size() != c2.size())
return false;
for (size_t i = 0; i < c1.size(); ++i)
if (c1[i].tag != c2[i].tag || c1[i].cipher_suite != c2[i].cipher_suite ||
c1[i].key_params != c2[i].key_params ||
c1[i].session_params != c2[i].session_params)
return false;
return true;
}
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.reset(new SessionDescription());
EXPECT_TRUE(current_desc->AddTransportInfo(
TransportInfo("audio",
TransportDescription(current_audio_ufrag,
current_audio_pwd))));
EXPECT_TRUE(current_desc->AddTransportInfo(
TransportInfo("video",
TransportDescription(current_video_ufrag,
current_video_pwd))));
EXPECT_TRUE(current_desc->AddTransportInfo(
TransportInfo("data",
TransportDescription(current_data_ufrag,
current_data_pwd))));
}
if (offer) {
desc.reset(f1_.CreateOffer(options, current_desc.get()));
} else {
std::unique_ptr<SessionDescription> offer;
offer.reset(f1_.CreateOffer(options, NULL));
desc.reset(f1_.CreateAnswer(offer.get(), options, current_desc.get()));
}
ASSERT_TRUE(desc.get() != NULL);
const TransportInfo* ti_audio = desc->GetTransportInfoByName("audio");
if (options.has_audio()) {
EXPECT_TRUE(ti_audio != NULL);
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>(cricket::ICE_UFRAG_LENGTH),
ti_audio->description.ice_ufrag.size());
EXPECT_EQ(static_cast<size_t>(cricket::ICE_PWD_LENGTH),
ti_audio->description.ice_pwd.size());
}
} else {
EXPECT_TRUE(ti_audio == NULL);
}
const TransportInfo* ti_video = desc->GetTransportInfoByName("video");
if (options.has_video()) {
EXPECT_TRUE(ti_video != NULL);
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>(cricket::ICE_UFRAG_LENGTH),
ti_video->description.ice_ufrag.size());
EXPECT_EQ(static_cast<size_t>(cricket::ICE_PWD_LENGTH),
ti_video->description.ice_pwd.size());
}
}
} else {
EXPECT_TRUE(ti_video == NULL);
}
const TransportInfo* ti_data = desc->GetTransportInfoByName("data");
if (options.has_data()) {
EXPECT_TRUE(ti_data != NULL);
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>(cricket::ICE_UFRAG_LENGTH),
ti_data->description.ice_ufrag.size());
EXPECT_EQ(static_cast<size_t>(cricket::ICE_PWD_LENGTH),
ti_data->description.ice_pwd.size());
}
}
} else {
EXPECT_TRUE(ti_video == NULL);
}
}
void TestCryptoWithBundle(bool offer) {
f1_.set_secure(SEC_ENABLED);
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
options.data_channel_type = cricket::DCT_RTP;
std::unique_ptr<SessionDescription> ref_desc;
std::unique_ptr<SessionDescription> desc;
if (offer) {
options.bundle_enabled = false;
ref_desc.reset(f1_.CreateOffer(options, NULL));
options.bundle_enabled = true;
desc.reset(f1_.CreateOffer(options, ref_desc.get()));
} else {
options.bundle_enabled = true;
ref_desc.reset(f1_.CreateOffer(options, NULL));
desc.reset(f1_.CreateAnswer(ref_desc.get(), options, NULL));
}
ASSERT_TRUE(desc.get() != NULL);
const cricket::MediaContentDescription* audio_media_desc =
static_cast<const cricket::MediaContentDescription*>(
desc.get()->GetContentDescriptionByName("audio"));
ASSERT_TRUE(audio_media_desc != NULL);
const cricket::MediaContentDescription* video_media_desc =
static_cast<const cricket::MediaContentDescription*>(
desc.get()->GetContentDescriptionByName("video"));
ASSERT_TRUE(video_media_desc != NULL);
EXPECT_TRUE(CompareCryptoParams(audio_media_desc->cryptos(),
video_media_desc->cryptos()));
EXPECT_EQ(1u, audio_media_desc->cryptos().size());
EXPECT_EQ(std::string(CS_AES_CM_128_HMAC_SHA1_80),
audio_media_desc->cryptos()[0].cipher_suite);
// Verify the selected crypto is one from the reference audio
// media content.
const cricket::MediaContentDescription* ref_audio_media_desc =
static_cast<const cricket::MediaContentDescription*>(
ref_desc.get()->GetContentDescriptionByName("audio"));
bool found = false;
for (size_t i = 0; i < ref_audio_media_desc->cryptos().size(); ++i) {
if (ref_audio_media_desc->cryptos()[i].Matches(
audio_media_desc->cryptos()[0])) {
found = true;
break;
}
}
EXPECT_TRUE(found);
}
// 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|.
void TestMediaDirectionInAnswer(
cricket::MediaContentDirection direction_in_offer,
cricket::MediaContentDirection expected_direction_in_answer) {
MediaSessionOptions opts;
opts.recv_video = true;
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
ContentInfo* ac_offer = offer->GetContentByName("audio");
ASSERT_TRUE(ac_offer != NULL);
AudioContentDescription* acd_offer =
static_cast<AudioContentDescription*>(ac_offer->description);
acd_offer->set_direction(direction_in_offer);
ContentInfo* vc_offer = offer->GetContentByName("video");
ASSERT_TRUE(vc_offer != NULL);
VideoContentDescription* vcd_offer =
static_cast<VideoContentDescription*>(vc_offer->description);
vcd_offer->set_direction(direction_in_offer);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
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 cricket::ContentInfo* content) {
const cricket::ContentDescription* description = content->description;
ASSERT(description != NULL);
const cricket::AudioContentDescription* audio_content_desc =
static_cast<const cricket::AudioContentDescription*>(description);
ASSERT(audio_content_desc != NULL);
for (size_t i = 0; i < audio_content_desc->codecs().size(); ++i) {
if (audio_content_desc->codecs()[i].name == "CN")
return false;
}
return true;
}
protected:
MediaSessionDescriptionFactory f1_;
MediaSessionDescriptionFactory f2_;
TransportDescriptionFactory tdf1_;
TransportDescriptionFactory tdf2_;
};
// Create a typical audio offer, and ensure it matches what we expect.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateAudioOffer) {
f1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(
f1_.CreateOffer(MediaSessionOptions(), NULL));
ASSERT_TRUE(offer.get() != NULL);
const ContentInfo* ac = offer->GetContentByName("audio");
const ContentInfo* vc = offer->GetContentByName("video");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc == NULL);
EXPECT_EQ(std::string(NS_JINGLE_RTP), ac->type);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type());
EXPECT_EQ(f1_.audio_sendrecv_codecs(), acd->codecs());
EXPECT_NE(0U, acd->first_ssrc()); // a random nonzero ssrc
EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // default bandwidth (auto)
EXPECT_TRUE(acd->rtcp_mux()); // rtcp-mux defaults on
ASSERT_CRYPTO(acd, 2U, CS_AES_CM_128_HMAC_SHA1_32);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), acd->protocol());
}
// Create a typical video offer, and ensure it matches what we expect.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateVideoOffer) {
MediaSessionOptions opts;
opts.recv_video = true;
f1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
const ContentInfo* ac = offer->GetContentByName("audio");
const ContentInfo* vc = offer->GetContentByName("video");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
EXPECT_EQ(std::string(NS_JINGLE_RTP), ac->type);
EXPECT_EQ(std::string(NS_JINGLE_RTP), vc->type);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
const VideoContentDescription* vcd =
static_cast<const VideoContentDescription*>(vc->description);
EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type());
EXPECT_EQ(f1_.audio_sendrecv_codecs(), acd->codecs());
EXPECT_NE(0U, acd->first_ssrc()); // a random nonzero ssrc
EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // default bandwidth (auto)
EXPECT_TRUE(acd->rtcp_mux()); // rtcp-mux defaults on
ASSERT_CRYPTO(acd, 2U, CS_AES_CM_128_HMAC_SHA1_32);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), acd->protocol());
EXPECT_EQ(MEDIA_TYPE_VIDEO, vcd->type());
EXPECT_EQ(f1_.video_codecs(), vcd->codecs());
EXPECT_NE(0U, vcd->first_ssrc()); // a random nonzero ssrc
EXPECT_EQ(kAutoBandwidth, vcd->bandwidth()); // default bandwidth (auto)
EXPECT_TRUE(vcd->rtcp_mux()); // rtcp-mux defaults on
ASSERT_CRYPTO(vcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), 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_codecs()[0];
const AudioCodec& offered_audio_codec = f2_.audio_sendrecv_codecs()[0];
const DataCodec& offered_data_codec = f2_.data_codecs()[0];
ASSERT_EQ(offered_video_codec.id, offered_audio_codec.id);
ASSERT_EQ(offered_video_codec.id, offered_data_codec.id);
MediaSessionOptions opts;
opts.recv_audio = true;
opts.recv_video = true;
opts.data_channel_type = cricket::DCT_RTP;
opts.bundle_enabled = true;
std::unique_ptr<SessionDescription> offer(f2_.CreateOffer(opts, NULL));
const VideoContentDescription* vcd =
GetFirstVideoContentDescription(offer.get());
const AudioContentDescription* acd =
GetFirstAudioContentDescription(offer.get());
const DataContentDescription* dcd =
GetFirstDataContentDescription(offer.get());
ASSERT_TRUE(NULL != vcd);
ASSERT_TRUE(NULL != acd);
ASSERT_TRUE(NULL != dcd);
EXPECT_NE(vcd->codecs()[0].id, acd->codecs()[0].id);
EXPECT_NE(vcd->codecs()[0].id, dcd->codecs()[0].id);
EXPECT_NE(acd->codecs()[0].id, dcd->codecs()[0].id);
EXPECT_EQ(vcd->codecs()[0].name, offered_video_codec.name);
EXPECT_EQ(acd->codecs()[0].name, offered_audio_codec.name);
EXPECT_EQ(dcd->codecs()[0].name, offered_data_codec.name);
}
// Test creating an updated offer with with bundle, audio, video and data
// after an audio only session has been negotiated.
TEST_F(MediaSessionDescriptionFactoryTest,
TestCreateUpdatedVideoOfferWithBundle) {
f1_.set_secure(SEC_ENABLED);
f2_.set_secure(SEC_ENABLED);
MediaSessionOptions opts;
opts.recv_audio = true;
opts.recv_video = false;
opts.data_channel_type = cricket::DCT_NONE;
opts.bundle_enabled = true;
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
MediaSessionOptions updated_opts;
updated_opts.recv_audio = true;
updated_opts.recv_video = true;
updated_opts.data_channel_type = cricket::DCT_RTP;
updated_opts.bundle_enabled = true;
std::unique_ptr<SessionDescription> updated_offer(
f1_.CreateOffer(updated_opts, answer.get()));
const AudioContentDescription* acd =
GetFirstAudioContentDescription(updated_offer.get());
const VideoContentDescription* vcd =
GetFirstVideoContentDescription(updated_offer.get());
const DataContentDescription* dcd =
GetFirstDataContentDescription(updated_offer.get());
EXPECT_TRUE(NULL != vcd);
EXPECT_TRUE(NULL != acd);
EXPECT_TRUE(NULL != dcd);
ASSERT_CRYPTO(acd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), acd->protocol());
ASSERT_CRYPTO(vcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), vcd->protocol());
ASSERT_CRYPTO(dcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), dcd->protocol());
}
// Create a RTP data offer, and ensure it matches what we expect.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateRtpDataOffer) {
MediaSessionOptions opts;
opts.data_channel_type = cricket::DCT_RTP;
f1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
const ContentInfo* ac = offer->GetContentByName("audio");
const ContentInfo* dc = offer->GetContentByName("data");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(dc != NULL);
EXPECT_EQ(std::string(NS_JINGLE_RTP), ac->type);
EXPECT_EQ(std::string(NS_JINGLE_RTP), dc->type);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
const DataContentDescription* dcd =
static_cast<const DataContentDescription*>(dc->description);
EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type());
EXPECT_EQ(f1_.audio_sendrecv_codecs(), acd->codecs());
EXPECT_NE(0U, acd->first_ssrc()); // a random nonzero ssrc
EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // default bandwidth (auto)
EXPECT_TRUE(acd->rtcp_mux()); // rtcp-mux defaults on
ASSERT_CRYPTO(acd, 2U, CS_AES_CM_128_HMAC_SHA1_32);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), acd->protocol());
EXPECT_EQ(MEDIA_TYPE_DATA, dcd->type());
EXPECT_EQ(f1_.data_codecs(), dcd->codecs());
EXPECT_NE(0U, dcd->first_ssrc()); // a random nonzero ssrc
EXPECT_EQ(cricket::kDataMaxBandwidth,
dcd->bandwidth()); // default bandwidth (auto)
EXPECT_TRUE(dcd->rtcp_mux()); // rtcp-mux defaults on
ASSERT_CRYPTO(dcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), dcd->protocol());
}
// Create an SCTP data offer with bundle without error.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSctpDataOffer) {
MediaSessionOptions opts;
opts.recv_audio = false;
opts.bundle_enabled = true;
opts.data_channel_type = cricket::DCT_SCTP;
f1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
EXPECT_TRUE(offer.get() != NULL);
EXPECT_TRUE(offer->GetContentByName("data") != NULL);
}
// Test creating an sctp data channel from an already generated offer.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateImplicitSctpDataOffer) {
MediaSessionOptions opts;
opts.recv_audio = false;
opts.bundle_enabled = true;
opts.data_channel_type = cricket::DCT_SCTP;
f1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer1(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer1.get() != NULL);
const ContentInfo* data = offer1->GetContentByName("data");
ASSERT_TRUE(data != NULL);
const MediaContentDescription* mdesc =
static_cast<const MediaContentDescription*>(data->description);
ASSERT_EQ(cricket::kMediaProtocolSctp, mdesc->protocol());
// Now set data_channel_type to 'none' (default) and make sure that the
// datachannel type that gets generated from the previous offer, is of the
// same type.
opts.data_channel_type = cricket::DCT_NONE;
std::unique_ptr<SessionDescription> offer2(
f1_.CreateOffer(opts, offer1.get()));
data = offer2->GetContentByName("data");
ASSERT_TRUE(data != NULL);
mdesc = static_cast<const MediaContentDescription*>(data->description);
EXPECT_EQ(cricket::kMediaProtocolSctp, mdesc->protocol());
}
// Create an audio, video offer without legacy StreamParams.
TEST_F(MediaSessionDescriptionFactoryTest,
TestCreateOfferWithoutLegacyStreams) {
MediaSessionOptions opts;
opts.recv_video = true;
f1_.set_add_legacy_streams(false);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
const ContentInfo* ac = offer->GetContentByName("audio");
const ContentInfo* vc = offer->GetContentByName("video");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
const VideoContentDescription* vcd =
static_cast<const VideoContentDescription*>(vc->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 options;
options.recv_audio = false;
options.recv_video = false;
options.AddSendStream(MEDIA_TYPE_VIDEO, kVideoTrack1, kMediaStream1);
options.AddSendStream(MEDIA_TYPE_AUDIO, kAudioTrack1, kMediaStream1);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(options, NULL));
ASSERT_TRUE(offer.get() != NULL);
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(cricket::MD_SENDONLY, GetMediaDirection(&offer->contents()[0]));
EXPECT_EQ(cricket::MD_SENDONLY, 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;
opts.recv_audio = false;
opts.recv_video = false;
opts.data_channel_type = cricket::DCT_SCTP;
std::unique_ptr<SessionDescription> offer1(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer1.get() != NULL);
EXPECT_EQ(1u, offer1->contents().size());
EXPECT_TRUE(IsMediaContentOfType(&offer1->contents()[0], MEDIA_TYPE_DATA));
opts.recv_video = true;
std::unique_ptr<SessionDescription> offer2(
f1_.CreateOffer(opts, offer1.get()));
ASSERT_TRUE(offer2.get() != NULL);
EXPECT_EQ(2u, offer2->contents().size());
EXPECT_TRUE(IsMediaContentOfType(&offer2->contents()[0], MEDIA_TYPE_DATA));
EXPECT_TRUE(IsMediaContentOfType(&offer2->contents()[1], MEDIA_TYPE_VIDEO));
opts.recv_audio = true;
std::unique_ptr<SessionDescription> offer3(
f1_.CreateOffer(opts, offer2.get()));
ASSERT_TRUE(offer3.get() != NULL);
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));
// Verifies the default order is audio-video-data, so that the previous checks
// didn't pass by accident.
std::unique_ptr<SessionDescription> offer4(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer4.get() != NULL);
EXPECT_EQ(3u, offer4->contents().size());
EXPECT_TRUE(IsMediaContentOfType(&offer4->contents()[0], MEDIA_TYPE_AUDIO));
EXPECT_TRUE(IsMediaContentOfType(&offer4->contents()[1], MEDIA_TYPE_VIDEO));
EXPECT_TRUE(IsMediaContentOfType(&offer4->contents()[2], MEDIA_TYPE_DATA));
}
// Create a typical audio answer, and ensure it matches what we expect.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateAudioAnswer) {
f1_.set_secure(SEC_ENABLED);
f2_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(
f1_.CreateOffer(MediaSessionOptions(), NULL));
ASSERT_TRUE(offer.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), MediaSessionOptions(), NULL));
const ContentInfo* ac = answer->GetContentByName("audio");
const ContentInfo* vc = answer->GetContentByName("video");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc == NULL);
EXPECT_EQ(std::string(NS_JINGLE_RTP), ac->type);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type());
EXPECT_EQ(MAKE_VECTOR(kAudioCodecsAnswer), acd->codecs());
EXPECT_NE(0U, acd->first_ssrc()); // a random nonzero ssrc
EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // negotiated auto bw
EXPECT_TRUE(acd->rtcp_mux()); // negotiated rtcp-mux
ASSERT_CRYPTO(acd, 1U, CS_AES_CM_128_HMAC_SHA1_32);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), acd->protocol());
}
// Create a typical video answer, and ensure it matches what we expect.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateVideoAnswer) {
MediaSessionOptions opts;
opts.recv_video = true;
f1_.set_secure(SEC_ENABLED);
f2_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
const ContentInfo* ac = answer->GetContentByName("audio");
const ContentInfo* vc = answer->GetContentByName("video");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
EXPECT_EQ(std::string(NS_JINGLE_RTP), ac->type);
EXPECT_EQ(std::string(NS_JINGLE_RTP), vc->type);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
const VideoContentDescription* vcd =
static_cast<const VideoContentDescription*>(vc->description);
EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type());
EXPECT_EQ(MAKE_VECTOR(kAudioCodecsAnswer), acd->codecs());
EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // negotiated auto bw
EXPECT_NE(0U, acd->first_ssrc()); // a random nonzero ssrc
EXPECT_TRUE(acd->rtcp_mux()); // negotiated rtcp-mux
ASSERT_CRYPTO(acd, 1U, CS_AES_CM_128_HMAC_SHA1_32);
EXPECT_EQ(MEDIA_TYPE_VIDEO, vcd->type());
EXPECT_EQ(MAKE_VECTOR(kVideoCodecsAnswer), vcd->codecs());
EXPECT_NE(0U, vcd->first_ssrc()); // a random nonzero ssrc
EXPECT_TRUE(vcd->rtcp_mux()); // negotiated rtcp-mux
ASSERT_CRYPTO(vcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), vcd->protocol());
}
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateDataAnswer) {
MediaSessionOptions opts;
opts.data_channel_type = cricket::DCT_RTP;
f1_.set_secure(SEC_ENABLED);
f2_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
const ContentInfo* ac = answer->GetContentByName("audio");
const ContentInfo* vc = answer->GetContentByName("data");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
EXPECT_EQ(std::string(NS_JINGLE_RTP), ac->type);
EXPECT_EQ(std::string(NS_JINGLE_RTP), vc->type);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
const DataContentDescription* vcd =
static_cast<const DataContentDescription*>(vc->description);
EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type());
EXPECT_EQ(MAKE_VECTOR(kAudioCodecsAnswer), acd->codecs());
EXPECT_EQ(kAutoBandwidth, acd->bandwidth()); // negotiated auto bw
EXPECT_NE(0U, acd->first_ssrc()); // a random nonzero ssrc
EXPECT_TRUE(acd->rtcp_mux()); // negotiated rtcp-mux
ASSERT_CRYPTO(acd, 1U, CS_AES_CM_128_HMAC_SHA1_32);
EXPECT_EQ(MEDIA_TYPE_DATA, vcd->type());
EXPECT_EQ(MAKE_VECTOR(kDataCodecsAnswer), vcd->codecs());
EXPECT_NE(0U, vcd->first_ssrc()); // a random nonzero ssrc
EXPECT_TRUE(vcd->rtcp_mux()); // negotiated rtcp-mux
ASSERT_CRYPTO(vcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf), vcd->protocol());
}
// 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.
opts.recv_audio = false;
opts.data_channel_type = cricket::DCT_SCTP;
std::unique_ptr<SessionDescription> offer1(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer1.get() != NULL);
// Appends audio to the offer.
opts.recv_audio = true;
std::unique_ptr<SessionDescription> offer2(
f1_.CreateOffer(opts, offer1.get()));
ASSERT_TRUE(offer2.get() != NULL);
// Appends video to the offer.
opts.recv_video = true;
std::unique_ptr<SessionDescription> offer3(
f1_.CreateOffer(opts, offer2.get()));
ASSERT_TRUE(offer3.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer3.get(), opts, NULL));
ASSERT_TRUE(answer.get() != NULL);
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(cricket::MD_SENDRECV, cricket::MD_SENDRECV);
}
// 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(cricket::MD_SENDONLY, cricket::MD_RECVONLY);
}
// 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(cricket::MD_RECVONLY, cricket::MD_SENDONLY);
}
// This test that the media direction is set to inactive in an answer if
// the offer is inactive.
TEST_F(MediaSessionDescriptionFactoryTest, CreateAnswerToInactiveOffer) {
TestMediaDirectionInAnswer(cricket::MD_INACTIVE, cricket::MD_INACTIVE);
}
// Test that a data content with an unknown protocol is rejected in an answer.
TEST_F(MediaSessionDescriptionFactoryTest,
CreateDataAnswerToOfferWithUnknownProtocol) {
MediaSessionOptions opts;
opts.data_channel_type = cricket::DCT_RTP;
opts.recv_audio = false;
f1_.set_secure(SEC_ENABLED);
f2_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ContentInfo* dc_offer = offer->GetContentByName("data");
ASSERT_TRUE(dc_offer != NULL);
DataContentDescription* dcd_offer =
static_cast<DataContentDescription*>(dc_offer->description);
ASSERT_TRUE(dcd_offer != NULL);
std::string protocol = "a weird unknown protocol";
dcd_offer->set_protocol(protocol);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
const ContentInfo* dc_answer = answer->GetContentByName("data");
ASSERT_TRUE(dc_answer != NULL);
EXPECT_TRUE(dc_answer->rejected);
const DataContentDescription* dcd_answer =
static_cast<const DataContentDescription*>(dc_answer->description);
ASSERT_TRUE(dcd_answer != NULL);
EXPECT_EQ(protocol, dcd_answer->protocol());
}
// Test that the media protocol is RTP/AVPF if DTLS and SDES are disabled.
TEST_F(MediaSessionDescriptionFactoryTest, AudioOfferAnswerWithCryptoDisabled) {
MediaSessionOptions opts;
f1_.set_secure(SEC_DISABLED);
f2_.set_secure(SEC_DISABLED);
tdf1_.set_secure(SEC_DISABLED);
tdf2_.set_secure(SEC_DISABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
const AudioContentDescription* offer_acd =
GetFirstAudioContentDescription(offer.get());
ASSERT_TRUE(offer_acd != NULL);
EXPECT_EQ(std::string(cricket::kMediaProtocolAvpf), offer_acd->protocol());
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
const ContentInfo* ac_answer = answer->GetContentByName("audio");
ASSERT_TRUE(ac_answer != NULL);
EXPECT_FALSE(ac_answer->rejected);
const AudioContentDescription* answer_acd =
GetFirstAudioContentDescription(answer.get());
ASSERT_TRUE(answer_acd != NULL);
EXPECT_EQ(std::string(cricket::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;
opts.recv_video = true;
f1_.set_audio_rtp_header_extensions(MAKE_VECTOR(kAudioRtpExtension1));
f1_.set_video_rtp_header_extensions(MAKE_VECTOR(kVideoRtpExtension1));
f2_.set_audio_rtp_header_extensions(MAKE_VECTOR(kAudioRtpExtension2));
f2_.set_video_rtp_header_extensions(MAKE_VECTOR(kVideoRtpExtension2));
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
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;
opts.recv_video = true;
opts.data_channel_type = cricket::DCT_RTP;
f1_.set_add_legacy_streams(false);
f2_.set_add_legacy_streams(false);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
const ContentInfo* ac = answer->GetContentByName("audio");
const ContentInfo* vc = answer->GetContentByName("video");
const ContentInfo* dc = answer->GetContentByName("data");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
const VideoContentDescription* vcd =
static_cast<const VideoContentDescription*>(vc->description);
const DataContentDescription* dcd =
static_cast<const DataContentDescription*>(dc->description);
EXPECT_FALSE(acd->has_ssrcs()); // No StreamParams.
EXPECT_FALSE(vcd->has_ssrcs()); // No StreamParams.
EXPECT_FALSE(dcd->has_ssrcs()); // No StreamParams.
}
TEST_F(MediaSessionDescriptionFactoryTest, TestPartial) {
MediaSessionOptions opts;
opts.recv_video = true;
opts.data_channel_type = cricket::DCT_RTP;
f1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
const ContentInfo* ac = offer->GetContentByName("audio");
const ContentInfo* vc = offer->GetContentByName("video");
const ContentInfo* dc = offer->GetContentByName("data");
AudioContentDescription* acd = const_cast<AudioContentDescription*>(
static_cast<const AudioContentDescription*>(ac->description));
VideoContentDescription* vcd = const_cast<VideoContentDescription*>(
static_cast<const VideoContentDescription*>(vc->description));
DataContentDescription* dcd = const_cast<DataContentDescription*>(
static_cast<const DataContentDescription*>(dc->description));
EXPECT_FALSE(acd->partial()); // default is false.
acd->set_partial(true);
EXPECT_TRUE(acd->partial());
acd->set_partial(false);
EXPECT_FALSE(acd->partial());
EXPECT_FALSE(vcd->partial()); // default is false.
vcd->set_partial(true);
EXPECT_TRUE(vcd->partial());
vcd->set_partial(false);
EXPECT_FALSE(vcd->partial());
EXPECT_FALSE(dcd->partial()); // default is false.
dcd->set_partial(true);
EXPECT_TRUE(dcd->partial());
dcd->set_partial(false);
EXPECT_FALSE(dcd->partial());
}
// Create a typical video answer, and ensure it matches what we expect.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateVideoAnswerRtcpMux) {
MediaSessionOptions offer_opts;
MediaSessionOptions answer_opts;
answer_opts.recv_video = true;
offer_opts.recv_video = true;
answer_opts.data_channel_type = cricket::DCT_RTP;
offer_opts.data_channel_type = cricket::DCT_RTP;
std::unique_ptr<SessionDescription> offer;
std::unique_ptr<SessionDescription> answer;
offer_opts.rtcp_mux_enabled = true;
answer_opts.rtcp_mux_enabled = true;
offer.reset(f1_.CreateOffer(offer_opts, NULL));
answer.reset(f2_.CreateAnswer(offer.get(), answer_opts, NULL));
ASSERT_TRUE(NULL != GetFirstAudioContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstVideoContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstDataContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstAudioContentDescription(answer.get()));
ASSERT_TRUE(NULL != GetFirstVideoContentDescription(answer.get()));
ASSERT_TRUE(NULL != GetFirstDataContentDescription(answer.get()));
EXPECT_TRUE(GetFirstAudioContentDescription(offer.get())->rtcp_mux());
EXPECT_TRUE(GetFirstVideoContentDescription(offer.get())->rtcp_mux());
EXPECT_TRUE(GetFirstDataContentDescription(offer.get())->rtcp_mux());
EXPECT_TRUE(GetFirstAudioContentDescription(answer.get())->rtcp_mux());
EXPECT_TRUE(GetFirstVideoContentDescription(answer.get())->rtcp_mux());
EXPECT_TRUE(GetFirstDataContentDescription(answer.get())->rtcp_mux());
offer_opts.rtcp_mux_enabled = true;
answer_opts.rtcp_mux_enabled = false;
offer.reset(f1_.CreateOffer(offer_opts, NULL));
answer.reset(f2_.CreateAnswer(offer.get(), answer_opts, NULL));
ASSERT_TRUE(NULL != GetFirstAudioContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstVideoContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstDataContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstAudioContentDescription(answer.get()));
ASSERT_TRUE(NULL != GetFirstVideoContentDescription(answer.get()));
ASSERT_TRUE(NULL != GetFirstDataContentDescription(answer.get()));
EXPECT_TRUE(GetFirstAudioContentDescription(offer.get())->rtcp_mux());
EXPECT_TRUE(GetFirstVideoContentDescription(offer.get())->rtcp_mux());
EXPECT_TRUE(GetFirstDataContentDescription(offer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstAudioContentDescription(answer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstVideoContentDescription(answer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstDataContentDescription(answer.get())->rtcp_mux());
offer_opts.rtcp_mux_enabled = false;
answer_opts.rtcp_mux_enabled = true;
offer.reset(f1_.CreateOffer(offer_opts, NULL));
answer.reset(f2_.CreateAnswer(offer.get(), answer_opts, NULL));
ASSERT_TRUE(NULL != GetFirstAudioContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstVideoContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstDataContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstAudioContentDescription(answer.get()));
ASSERT_TRUE(NULL != GetFirstVideoContentDescription(answer.get()));
ASSERT_TRUE(NULL != GetFirstDataContentDescription(answer.get()));
EXPECT_FALSE(GetFirstAudioContentDescription(offer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstVideoContentDescription(offer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstDataContentDescription(offer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstAudioContentDescription(answer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstVideoContentDescription(answer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstDataContentDescription(answer.get())->rtcp_mux());
offer_opts.rtcp_mux_enabled = false;
answer_opts.rtcp_mux_enabled = false;
offer.reset(f1_.CreateOffer(offer_opts, NULL));
answer.reset(f2_.CreateAnswer(offer.get(), answer_opts, NULL));
ASSERT_TRUE(NULL != GetFirstAudioContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstVideoContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstDataContentDescription(offer.get()));
ASSERT_TRUE(NULL != GetFirstAudioContentDescription(answer.get()));
ASSERT_TRUE(NULL != GetFirstVideoContentDescription(answer.get()));
ASSERT_TRUE(NULL != GetFirstDataContentDescription(answer.get()));
EXPECT_FALSE(GetFirstAudioContentDescription(offer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstVideoContentDescription(offer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstDataContentDescription(offer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstAudioContentDescription(answer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstVideoContentDescription(answer.get())->rtcp_mux());
EXPECT_FALSE(GetFirstDataContentDescription(answer.get())->rtcp_mux());
}
// Create an audio-only answer to a video offer.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateAudioAnswerToVideo) {
MediaSessionOptions opts;
opts.recv_video = true;
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), MediaSessionOptions(), NULL));
const ContentInfo* ac = answer->GetContentByName("audio");
const ContentInfo* vc = answer->GetContentByName("video");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
ASSERT_TRUE(vc->description != NULL);
EXPECT_TRUE(vc->rejected);
}
// Create an audio-only answer to an offer with data.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateNoDataAnswerToDataOffer) {
MediaSessionOptions opts;
opts.data_channel_type = cricket::DCT_RTP;
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), MediaSessionOptions(), NULL));
const ContentInfo* ac = answer->GetContentByName("audio");
const ContentInfo* dc = answer->GetContentByName("data");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(dc != NULL);
ASSERT_TRUE(dc->description != NULL);
EXPECT_TRUE(dc->rejected);
}
// Create an answer that rejects the contents which are rejected in the offer.
TEST_F(MediaSessionDescriptionFactoryTest,
CreateAnswerToOfferWithRejectedMedia) {
MediaSessionOptions opts;
opts.recv_video = true;
opts.data_channel_type = cricket::DCT_RTP;
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
ContentInfo* ac = offer->GetContentByName("audio");
ContentInfo* vc = offer->GetContentByName("video");
ContentInfo* dc = offer->GetContentByName("data");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
ASSERT_TRUE(dc != NULL);
ac->rejected = true;
vc->rejected = true;
dc->rejected = true;
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
ac = answer->GetContentByName("audio");
vc = answer->GetContentByName("video");
dc = answer->GetContentByName("data");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
ASSERT_TRUE(dc != NULL);
EXPECT_TRUE(ac->rejected);
EXPECT_TRUE(vc->rejected);
EXPECT_TRUE(dc->rejected);
}
// Create an audio and video offer with:
// - one video track
// - two audio tracks
// - two data 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;
opts.AddSendStream(MEDIA_TYPE_VIDEO, kVideoTrack1, kMediaStream1);
opts.AddSendStream(MEDIA_TYPE_AUDIO, kAudioTrack1, kMediaStream1);
opts.AddSendStream(MEDIA_TYPE_AUDIO, kAudioTrack2, kMediaStream1);
opts.data_channel_type = cricket::DCT_RTP;
opts.AddSendStream(MEDIA_TYPE_DATA, kDataTrack1, kMediaStream1);
opts.AddSendStream(MEDIA_TYPE_DATA, kDataTrack2, kMediaStream1);
f1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
const ContentInfo* ac = offer->GetContentByName("audio");
const ContentInfo* vc = offer->GetContentByName("video");
const ContentInfo* dc = offer->GetContentByName("data");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
ASSERT_TRUE(dc != NULL);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
const VideoContentDescription* vcd =
static_cast<const VideoContentDescription*>(vc->description);
const DataContentDescription* dcd =
static_cast<const DataContentDescription*>(dc->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
ASSERT_CRYPTO(acd, 2U, CS_AES_CM_128_HMAC_SHA1_32);
EXPECT_EQ(MEDIA_TYPE_VIDEO, vcd->type());
EXPECT_EQ(f1_.video_codecs(), vcd->codecs());
ASSERT_CRYPTO(vcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
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
EXPECT_EQ(MEDIA_TYPE_DATA, dcd->type());
EXPECT_EQ(f1_.data_codecs(), dcd->codecs());
ASSERT_CRYPTO(dcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
const StreamParamsVec& data_streams = dcd->streams();
ASSERT_EQ(2U, data_streams.size());
EXPECT_EQ(data_streams[0].cname , data_streams[1].cname);
EXPECT_EQ(kDataTrack1, data_streams[0].id);
ASSERT_EQ(1U, data_streams[0].ssrcs.size());
EXPECT_NE(0U, data_streams[0].ssrcs[0]);
EXPECT_EQ(kDataTrack2, data_streams[1].id);
ASSERT_EQ(1U, data_streams[1].ssrcs.size());
EXPECT_NE(0U, data_streams[1].ssrcs[0]);
EXPECT_EQ(cricket::kDataMaxBandwidth,
dcd->bandwidth()); // default bandwidth (auto)
EXPECT_TRUE(dcd->rtcp_mux()); // rtcp-mux defaults on
ASSERT_CRYPTO(dcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
// 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.
opts.AddSendStream(MEDIA_TYPE_VIDEO, kVideoTrack2, kMediaStream2);
opts.RemoveSendStream(MEDIA_TYPE_AUDIO, kAudioTrack2);
opts.AddSendStream(MEDIA_TYPE_AUDIO, kAudioTrack3, kMediaStream1);
opts.RemoveSendStream(MEDIA_TYPE_DATA, kDataTrack2);
opts.AddSendStream(MEDIA_TYPE_DATA, kDataTrack3, kMediaStream1);
std::unique_ptr<SessionDescription> updated_offer(
f1_.CreateOffer(opts, offer.get()));
ASSERT_TRUE(updated_offer.get() != NULL);
ac = updated_offer->GetContentByName("audio");
vc = updated_offer->GetContentByName("video");
dc = updated_offer->GetContentByName("data");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
ASSERT_TRUE(dc != NULL);
const AudioContentDescription* updated_acd =
static_cast<const AudioContentDescription*>(ac->description);
const VideoContentDescription* updated_vcd =
static_cast<const VideoContentDescription*>(vc->description);
const DataContentDescription* updated_dcd =
static_cast<const DataContentDescription*>(dc->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());
EXPECT_EQ(dcd->type(), updated_dcd->type());
EXPECT_EQ(dcd->codecs(), updated_dcd->codecs());
ASSERT_CRYPTO(updated_acd, 2U, CS_AES_CM_128_HMAC_SHA1_32);
EXPECT_TRUE(CompareCryptoParams(acd->cryptos(), updated_acd->cryptos()));
ASSERT_CRYPTO(updated_vcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_TRUE(CompareCryptoParams(vcd->cryptos(), updated_vcd->cryptos()));
ASSERT_CRYPTO(updated_dcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_TRUE(CompareCryptoParams(dcd->cryptos(), updated_dcd->cryptos()));
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);
const StreamParamsVec& updated_data_streams = updated_dcd->streams();
ASSERT_EQ(2U, updated_data_streams.size());
EXPECT_EQ(data_streams[0], updated_data_streams[0]);
EXPECT_EQ(kDataTrack3, updated_data_streams[1].id); // New data track.
ASSERT_EQ(1U, updated_data_streams[1].ssrcs.size());
EXPECT_NE(0U, updated_data_streams[1].ssrcs[0]);
EXPECT_EQ(updated_data_streams[0].cname, updated_data_streams[1].cname);
// The stream correctly got the CNAME from the MediaSessionOptions.
// The Expected RTCP CNAME is the default one as we are using the default
// MediaSessionOptions.
EXPECT_EQ(updated_data_streams[0].cname, cricket::kDefaultRtcpCname);
}
// Create an offer with simulcast video stream.
TEST_F(MediaSessionDescriptionFactoryTest, TestCreateSimulcastVideoOffer) {
MediaSessionOptions opts;
const int num_sim_layers = 3;
opts.AddSendVideoStream(kVideoTrack1, kMediaStream1, num_sim_layers);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
const ContentInfo* vc = offer->GetContentByName("video");
ASSERT_TRUE(vc != NULL);
const VideoContentDescription* vcd =
static_cast<const VideoContentDescription*>(vc->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(cricket::kSimSsrcGroupSemantics);
ASSERT_TRUE(sim_ssrc_group != NULL);
EXPECT_EQ(static_cast<size_t>(num_sim_layers), sim_ssrc_group->ssrcs.size());
}
// 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;
offer_opts.recv_video = true;
offer_opts.data_channel_type = cricket::DCT_RTP;
f1_.set_secure(SEC_ENABLED);
f2_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(offer_opts, NULL));
MediaSessionOptions opts;
opts.AddSendStream(MEDIA_TYPE_VIDEO, kVideoTrack1, kMediaStream1);
opts.AddSendStream(MEDIA_TYPE_AUDIO, kAudioTrack1, kMediaStream1);
opts.AddSendStream(MEDIA_TYPE_AUDIO, kAudioTrack2, kMediaStream1);
opts.data_channel_type = cricket::DCT_RTP;
opts.AddSendStream(MEDIA_TYPE_DATA, kDataTrack1, kMediaStream1);
opts.AddSendStream(MEDIA_TYPE_DATA, kDataTrack2, kMediaStream1);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
ASSERT_TRUE(answer.get() != NULL);
const ContentInfo* ac = answer->GetContentByName("audio");
const ContentInfo* vc = answer->GetContentByName("video");
const ContentInfo* dc = answer->GetContentByName("data");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
ASSERT_TRUE(dc != NULL);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
const VideoContentDescription* vcd =
static_cast<const VideoContentDescription*>(vc->description);
const DataContentDescription* dcd =
static_cast<const DataContentDescription*>(dc->description);
ASSERT_CRYPTO(acd, 1U, CS_AES_CM_128_HMAC_SHA1_32);
ASSERT_CRYPTO(vcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
ASSERT_CRYPTO(dcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type());
EXPECT_EQ(MAKE_VECTOR(kAudioCodecsAnswer), acd->codecs());
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_EQ(MAKE_VECTOR(kVideoCodecsAnswer), 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
EXPECT_EQ(MEDIA_TYPE_DATA, dcd->type());
EXPECT_EQ(MAKE_VECTOR(kDataCodecsAnswer), dcd->codecs());
const StreamParamsVec& data_streams = dcd->streams();
ASSERT_EQ(2U, data_streams.size());
EXPECT_TRUE(data_streams[0].cname == data_streams[1].cname);
EXPECT_EQ(kDataTrack1, data_streams[0].id);
ASSERT_EQ(1U, data_streams[0].ssrcs.size());
EXPECT_NE(0U, data_streams[0].ssrcs[0]);
EXPECT_EQ(kDataTrack2, data_streams[1].id);
ASSERT_EQ(1U, data_streams[1].ssrcs.size());
EXPECT_NE(0U, data_streams[1].ssrcs[0]);
EXPECT_EQ(cricket::kDataMaxBandwidth,
dcd->bandwidth()); // default bandwidth (auto)
EXPECT_TRUE(dcd->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.
opts.AddSendStream(MEDIA_TYPE_VIDEO, kVideoTrack2, kMediaStream2);
opts.RemoveSendStream(MEDIA_TYPE_AUDIO, kAudioTrack2);
opts.RemoveSendStream(MEDIA_TYPE_DATA, kDataTrack2);
std::unique_ptr<SessionDescription> updated_answer(
f2_.CreateAnswer(offer.get(), opts, answer.get()));
ASSERT_TRUE(updated_answer.get() != NULL);
ac = updated_answer->GetContentByName("audio");
vc = updated_answer->GetContentByName("video");
dc = updated_answer->GetContentByName("data");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
ASSERT_TRUE(dc != NULL);
const AudioContentDescription* updated_acd =
static_cast<const AudioContentDescription*>(ac->description);
const VideoContentDescription* updated_vcd =
static_cast<const VideoContentDescription*>(vc->description);
const DataContentDescription* updated_dcd =
static_cast<const DataContentDescription*>(dc->description);
ASSERT_CRYPTO(updated_acd, 1U, CS_AES_CM_128_HMAC_SHA1_32);
EXPECT_TRUE(CompareCryptoParams(acd->cryptos(), updated_acd->cryptos()));
ASSERT_CRYPTO(updated_vcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_TRUE(CompareCryptoParams(vcd->cryptos(), updated_vcd->cryptos()));
ASSERT_CRYPTO(updated_dcd, 1U, CS_AES_CM_128_HMAC_SHA1_80);
EXPECT_TRUE(CompareCryptoParams(dcd->cryptos(), updated_dcd->cryptos()));
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());
EXPECT_EQ(dcd->type(), updated_dcd->type());
EXPECT_EQ(dcd->codecs(), updated_dcd->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);
const StreamParamsVec& updated_data_streams = updated_dcd->streams();
ASSERT_EQ(1U, updated_data_streams.size());
EXPECT_TRUE(data_streams[0] == updated_data_streams[0]);
}
// 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;
opts.recv_audio = true;
opts.recv_video = true;
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
const AudioContentDescription* acd =
GetFirstAudioContentDescription(answer.get());
EXPECT_EQ(MAKE_VECTOR(kAudioCodecsAnswer), acd->codecs());
const VideoContentDescription* vcd =
GetFirstVideoContentDescription(answer.get());
EXPECT_EQ(MAKE_VECTOR(kVideoCodecsAnswer), vcd->codecs());
std::unique_ptr<SessionDescription> updated_offer(
f2_.CreateOffer(opts, answer.get()));
// 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_EQ(MAKE_VECTOR(kUpdatedAudioCodecOffer), updated_acd->codecs());
const VideoContentDescription* updated_vcd =
GetFirstVideoContentDescription(updated_offer.get());
EXPECT_EQ(MAKE_VECTOR(kUpdatedVideoCodecOffer), updated_vcd->codecs());
}
// 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;
opts.recv_video = true;
opts.recv_audio = false;
std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1);
// This creates rtx for H264 with the payload type |f1_| uses.
AddRtxCodec(VideoCodec::CreateRtxCodec(126, kVideoCodecs1[1].id), &f1_codecs);
f1_.set_video_codecs(f1_codecs);
std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2);
// This creates rtx for H264 with the payload type |f2_| uses.
AddRtxCodec(VideoCodec::CreateRtxCodec(125, kVideoCodecs2[0].id), &f2_codecs);
f2_.set_video_codecs(f2_codecs);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
const VideoContentDescription* vcd =
GetFirstVideoContentDescription(answer.get());
std::vector<VideoCodec> expected_codecs = MAKE_VECTOR(kVideoCodecsAnswer);
AddRtxCodec(VideoCodec::CreateRtxCodec(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_.CreateOffer(opts, answer.get()));
ASSERT_TRUE(updated_offer);
std::unique_ptr<SessionDescription> updated_answer(
f1_.CreateAnswer(updated_offer.get(), opts, answer.get()));
const VideoContentDescription* updated_vcd =
GetFirstVideoContentDescription(updated_answer.get());
EXPECT_EQ(expected_codecs, updated_vcd->codecs());
}
// 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(VideoCodec::CreateRtxCodec(126, kVideoCodecs1[1].id), &f1_codecs);
f1_.set_video_codecs(f1_codecs);
MediaSessionOptions opts;
opts.recv_audio = true;
opts.recv_video = false;
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
const AudioContentDescription* acd =
GetFirstAudioContentDescription(answer.get());
EXPECT_EQ(MAKE_VECTOR(kAudioCodecsAnswer), acd->codecs());
// 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.recv_audio = true;
opts.recv_video = true;
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(VideoCodec::CreateRtxCodec(125, used_pl_type), &f2_codecs);
f2_.set_video_codecs(f2_codecs);
std::unique_ptr<SessionDescription> updated_offer(
f2_.CreateOffer(opts, answer.get()));
ASSERT_TRUE(updated_offer);
std::unique_ptr<SessionDescription> updated_answer(
f1_.CreateAnswer(updated_offer.get(), opts, answer.get()));
const AudioContentDescription* updated_acd =
GetFirstAudioContentDescription(answer.get());
EXPECT_EQ(MAKE_VECTOR(kAudioCodecsAnswer), updated_acd->codecs());
const VideoContentDescription* updated_vcd =
GetFirstVideoContentDescription(updated_answer.get());
ASSERT_EQ("H264", updated_vcd->codecs()[0].name);
ASSERT_EQ(std::string(cricket::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[cricket::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;
opts.recv_video = true;
opts.recv_audio = true;
std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2);
// This creates rtx for H264 with the payload type |f2_| uses.
AddRtxCodec(VideoCodec::CreateRtxCodec(125, kVideoCodecs2[0].id), &f2_codecs);
f2_.set_video_codecs(f2_codecs);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, nullptr));
ASSERT_TRUE(offer.get() != nullptr);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, nullptr));
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_.CreateOffer(opts, answer.get()));
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(VideoCodec::CreateRtxCodec(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;
opts.recv_video = true;
opts.recv_audio = false;
std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1);
// This creates RTX without associated payload type parameter.
AddRtxCodec(VideoCodec(126, cricket::kRtxCodecName, 0, 0, 0), &f1_codecs);
f1_.set_video_codecs(f1_codecs);
std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2);
// This creates RTX for H264 with the payload type |f2_| uses.
AddRtxCodec(VideoCodec::CreateRtxCodec(125, kVideoCodecs2[0].id), &f2_codecs);
f2_.set_video_codecs(f2_codecs);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
// 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.
VideoContentDescription* desc =
static_cast<cricket::VideoContentDescription*>(
offer->GetContentDescriptionByName(cricket::CN_VIDEO));
ASSERT_TRUE(desc != NULL);
std::vector<VideoCodec> codecs = desc->codecs();
for (std::vector<VideoCodec>::iterator iter = codecs.begin();
iter != codecs.end(); ++iter) {
if (iter->name.find(cricket::kRtxCodecName) == 0) {
iter->params.clear();
}
}
desc->set_codecs(codecs);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
std::vector<std::string> codec_names =
GetCodecNames(GetFirstVideoContentDescription(answer.get())->codecs());
EXPECT_EQ(codec_names.end(), std::find(codec_names.begin(), codec_names.end(),
cricket::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;
opts.recv_video = true;
opts.recv_audio = false;
std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1);
// This creates RTX for H264 in sender.
AddRtxCodec(VideoCodec::CreateRtxCodec(126, kVideoCodecs1[1].id), &f1_codecs);
f1_.set_video_codecs(f1_codecs);
std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2);
// This creates RTX for H263 in receiver.
AddRtxCodec(VideoCodec::CreateRtxCodec(125, kVideoCodecs2[1].id), &f2_codecs);
f2_.set_video_codecs(f2_codecs);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
// Associated payload type doesn't match, therefore, RTX codec is removed in
// the answer.
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
std::vector<std::string> codec_names =
GetCodecNames(GetFirstVideoContentDescription(answer.get())->codecs());
EXPECT_EQ(codec_names.end(), std::find(codec_names.begin(), codec_names.end(),
cricket::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;
opts.recv_video = true;
opts.recv_audio = false;
std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1);
// This creates RTX for H264-SVC in sender.
AddRtxCodec(VideoCodec::CreateRtxCodec(125, kVideoCodecs1[0].id), &f1_codecs);
f1_.set_video_codecs(f1_codecs);
// This creates RTX for H264 in sender.
AddRtxCodec(VideoCodec::CreateRtxCodec(126, kVideoCodecs1[1].id), &f1_codecs);
f1_.set_video_codecs(f1_codecs);
std::vector<VideoCodec> f2_codecs = MAKE_VECTOR(kVideoCodecs2);
// This creates RTX for H264 in receiver.
AddRtxCodec(VideoCodec::CreateRtxCodec(124, kVideoCodecs2[0].id), &f2_codecs);
f2_.set_video_codecs(f2_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_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
const VideoContentDescription* vcd =
GetFirstVideoContentDescription(answer.get());
std::vector<VideoCodec> expected_codecs = MAKE_VECTOR(kVideoCodecsAnswer);
AddRtxCodec(VideoCodec::CreateRtxCodec(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;
opts.recv_video = true;
opts.recv_audio = false;
std::vector<VideoCodec> f1_codecs = MAKE_VECTOR(kVideoCodecs1);
// This creates RTX for H264 for the offerer.
AddRtxCodec(VideoCodec::CreateRtxCodec(126, kVideoCodecs1[1].id), &f1_codecs);
f1_.set_video_codecs(f1_codecs);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, nullptr));
ASSERT_TRUE(offer);
const VideoContentDescription* vcd =
GetFirstVideoContentDescription(offer.get());
std::vector<VideoCodec> expected_codecs = MAKE_VECTOR(kVideoCodecs1);
AddRtxCodec(VideoCodec::CreateRtxCodec(126, kVideoCodecs1[1].id),
&expected_codecs);
EXPECT_EQ(expected_codecs, vcd->codecs());
// Now, attempt to add RTX for H264-SVC.
AddRtxCodec(VideoCodec::CreateRtxCodec(125, kVideoCodecs1[0].id), &f1_codecs);
f1_.set_video_codecs(f1_codecs);
std::unique_ptr<SessionDescription> updated_offer(
f1_.CreateOffer(opts, offer.get()));
ASSERT_TRUE(updated_offer);
vcd = GetFirstVideoContentDescription(updated_offer.get());
AddRtxCodec(VideoCodec::CreateRtxCodec(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;
opts.recv_video = true;
opts.recv_audio = false;
// Add simulcast streams.
opts.AddSendVideoStream("stream1", "stream1label", 3);
// Use a single real codec, and then add RTX for it.
std::vector<VideoCodec> f1_codecs;
f1_codecs.push_back(VideoCodec(97, "H264", 320, 200, 30));
AddRtxCodec(VideoCodec::CreateRtxCodec(125, 97), &f1_codecs);
f1_.set_video_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_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
VideoContentDescription* desc = static_cast<VideoContentDescription*>(
offer->GetContentDescriptionByName(cricket::CN_VIDEO));
ASSERT_TRUE(desc != NULL);
EXPECT_TRUE(desc->multistream());
const StreamParamsVec& streams = 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());
}
// 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;
opts.recv_audio = true;
opts.recv_video = true;
f1_.set_audio_rtp_header_extensions(MAKE_VECTOR(kAudioRtpExtension1));
f1_.set_video_rtp_header_extensions(MAKE_VECTOR(kVideoRtpExtension1));
f2_.set_audio_rtp_header_extensions(MAKE_VECTOR(kAudioRtpExtension2));
f2_.set_video_rtp_header_extensions(MAKE_VECTOR(kVideoRtpExtension2));
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, NULL));
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_.CreateOffer(opts, answer.get()));
// 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;
opts.recv_audio = true;
opts.recv_video = true;
f1_.set_audio_rtp_header_extensions(MAKE_VECTOR(kAudioRtpExtension3));
f1_.set_video_rtp_header_extensions(MAKE_VECTOR(kVideoRtpExtension3));
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
// 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_.CreateOffer(opts, offer.get()));
EXPECT_EQ(MAKE_VECTOR(kAudioRtpExtension3),
GetFirstAudioContentDescription(
updated_offer.get())->rtp_header_extensions());
EXPECT_EQ(MAKE_VECTOR(kExpectedVideoRtpExtension),
GetFirstVideoContentDescription(
updated_offer.get())->rtp_header_extensions());
}
TEST(MediaSessionDescription, CopySessionDescription) {
SessionDescription source;
cricket::ContentGroup group(cricket::CN_AUDIO);
source.AddGroup(group);
AudioContentDescription* acd(new AudioContentDescription());
acd->set_codecs(MAKE_VECTOR(kAudioCodecs1));
acd->AddLegacyStream(1);
source.AddContent(cricket::CN_AUDIO, cricket::NS_JINGLE_RTP, acd);
VideoContentDescription* vcd(new VideoContentDescription());
vcd->set_codecs(MAKE_VECTOR(kVideoCodecs1));
vcd->AddLegacyStream(2);
source.AddContent(cricket::CN_VIDEO, cricket::NS_JINGLE_RTP, vcd);
std::unique_ptr<SessionDescription> copy(source.Copy());
ASSERT_TRUE(copy.get() != NULL);
EXPECT_TRUE(copy->HasGroup(cricket::CN_AUDIO));
const ContentInfo* ac = copy->GetContentByName("audio");
const ContentInfo* vc = copy->GetContentByName("video");
ASSERT_TRUE(ac != NULL);
ASSERT_TRUE(vc != NULL);
EXPECT_EQ(std::string(NS_JINGLE_RTP), ac->type);
const AudioContentDescription* acd_copy =
static_cast<const AudioContentDescription*>(ac->description);
EXPECT_EQ(acd->codecs(), acd_copy->codecs());
EXPECT_EQ(1u, acd->first_ssrc());
EXPECT_EQ(std::string(NS_JINGLE_RTP), vc->type);
const VideoContentDescription* vcd_copy =
static_cast<const VideoContentDescription*>(vc->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;
options.recv_audio = true;
TestTransportInfo(true, options, false);
}
TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoOfferAudioCurrent) {
MediaSessionOptions options;
options.recv_audio = true;
TestTransportInfo(true, options, true);
}
TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoOfferMultimedia) {
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
options.data_channel_type = cricket::DCT_RTP;
TestTransportInfo(true, options, false);
}
TEST_F(MediaSessionDescriptionFactoryTest,
TestTransportInfoOfferMultimediaCurrent) {
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
options.data_channel_type = cricket::DCT_RTP;
TestTransportInfo(true, options, true);
}
TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoOfferBundle) {
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
options.data_channel_type = cricket::DCT_RTP;
options.bundle_enabled = true;
TestTransportInfo(true, options, false);
}
TEST_F(MediaSessionDescriptionFactoryTest,
TestTransportInfoOfferBundleCurrent) {
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
options.data_channel_type = cricket::DCT_RTP;
options.bundle_enabled = true;
TestTransportInfo(true, options, true);
}
TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoAnswerAudio) {
MediaSessionOptions options;
options.recv_audio = true;
TestTransportInfo(false, options, false);
}
TEST_F(MediaSessionDescriptionFactoryTest,
TestTransportInfoAnswerAudioCurrent) {
MediaSessionOptions options;
options.recv_audio = true;
TestTransportInfo(false, options, true);
}
TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoAnswerMultimedia) {
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
options.data_channel_type = cricket::DCT_RTP;
TestTransportInfo(false, options, false);
}
TEST_F(MediaSessionDescriptionFactoryTest,
TestTransportInfoAnswerMultimediaCurrent) {
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
options.data_channel_type = cricket::DCT_RTP;
TestTransportInfo(false, options, true);
}
TEST_F(MediaSessionDescriptionFactoryTest, TestTransportInfoAnswerBundle) {
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
options.data_channel_type = cricket::DCT_RTP;
options.bundle_enabled = true;
TestTransportInfo(false, options, false);
}
TEST_F(MediaSessionDescriptionFactoryTest,
TestTransportInfoAnswerBundleCurrent) {
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
options.data_channel_type = cricket::DCT_RTP;
options.bundle_enabled = true;
TestTransportInfo(false, options, true);
}
// Create an offer with bundle enabled and verify the crypto parameters are
// the common set of the available cryptos.
TEST_F(MediaSessionDescriptionFactoryTest, TestCryptoWithOfferBundle) {
TestCryptoWithBundle(true);
}
// Create an answer with bundle enabled and verify the crypto parameters are
// the common set of the available cryptos.
TEST_F(MediaSessionDescriptionFactoryTest, TestCryptoWithAnswerBundle) {
TestCryptoWithBundle(false);
}
// Verifies that creating answer fails if the offer has UDP/TLS/RTP/SAVPF but
// DTLS is not enabled locally.
TEST_F(MediaSessionDescriptionFactoryTest,
TestOfferDtlsSavpfWithoutDtlsFailed) {
f1_.set_secure(SEC_ENABLED);
f2_.set_secure(SEC_ENABLED);
tdf1_.set_secure(SEC_DISABLED);
tdf2_.set_secure(SEC_DISABLED);
std::unique_ptr<SessionDescription> offer(
f1_.CreateOffer(MediaSessionOptions(), NULL));
ASSERT_TRUE(offer.get() != NULL);
ContentInfo* offer_content = offer->GetContentByName("audio");
ASSERT_TRUE(offer_content != NULL);
AudioContentDescription* offer_audio_desc =
static_cast<AudioContentDescription*>(offer_content->description);
offer_audio_desc->set_protocol(cricket::kMediaProtocolDtlsSavpf);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), MediaSessionOptions(), NULL));
ASSERT_TRUE(answer != NULL);
ContentInfo* answer_content = answer->GetContentByName("audio");
ASSERT_TRUE(answer_content != NULL);
ASSERT_TRUE(answer_content->rejected);
}
// Offers UDP/TLS/RTP/SAVPF and verifies the answer can be created and contains
// UDP/TLS/RTP/SAVPF.
TEST_F(MediaSessionDescriptionFactoryTest, TestOfferDtlsSavpfCreateAnswer) {
f1_.set_secure(SEC_ENABLED);
f2_.set_secure(SEC_ENABLED);
tdf1_.set_secure(SEC_ENABLED);
tdf2_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(
f1_.CreateOffer(MediaSessionOptions(), NULL));
ASSERT_TRUE(offer.get() != NULL);
ContentInfo* offer_content = offer->GetContentByName("audio");
ASSERT_TRUE(offer_content != NULL);
AudioContentDescription* offer_audio_desc =
static_cast<AudioContentDescription*>(offer_content->description);
offer_audio_desc->set_protocol(cricket::kMediaProtocolDtlsSavpf);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), MediaSessionOptions(), NULL));
ASSERT_TRUE(answer != NULL);
const ContentInfo* answer_content = answer->GetContentByName("audio");
ASSERT_TRUE(answer_content != NULL);
ASSERT_FALSE(answer_content->rejected);
const AudioContentDescription* answer_audio_desc =
static_cast<const AudioContentDescription*>(answer_content->description);
EXPECT_EQ(std::string(cricket::kMediaProtocolDtlsSavpf),
answer_audio_desc->protocol());
}
// Test that we include both SDES and DTLS in the offer, but only include SDES
// in the answer if DTLS isn't negotiated.
TEST_F(MediaSessionDescriptionFactoryTest, TestCryptoDtls) {
f1_.set_secure(SEC_ENABLED);
f2_.set_secure(SEC_ENABLED);
tdf1_.set_secure(SEC_ENABLED);
tdf2_.set_secure(SEC_DISABLED);
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
std::unique_ptr<SessionDescription> offer, answer;
const cricket::MediaContentDescription* audio_media_desc;
const cricket::MediaContentDescription* video_media_desc;
const cricket::TransportDescription* audio_trans_desc;
const cricket::TransportDescription* video_trans_desc;
// Generate an offer with SDES and DTLS support.
offer.reset(f1_.CreateOffer(options, NULL));
ASSERT_TRUE(offer.get() != NULL);
audio_media_desc = static_cast<const cricket::MediaContentDescription*>(
offer->GetContentDescriptionByName("audio"));
ASSERT_TRUE(audio_media_desc != NULL);
video_media_desc = static_cast<const cricket::MediaContentDescription*>(
offer->GetContentDescriptionByName("video"));
ASSERT_TRUE(video_media_desc != NULL);
EXPECT_EQ(2u, audio_media_desc->cryptos().size());
EXPECT_EQ(1u, video_media_desc->cryptos().size());
audio_trans_desc = offer->GetTransportDescriptionByName("audio");
ASSERT_TRUE(audio_trans_desc != NULL);
video_trans_desc = offer->GetTransportDescriptionByName("video");
ASSERT_TRUE(video_trans_desc != NULL);
ASSERT_TRUE(audio_trans_desc->identity_fingerprint.get() != NULL);
ASSERT_TRUE(video_trans_desc->identity_fingerprint.get() != NULL);
// Generate an answer with only SDES support, since tdf2 has crypto disabled.
answer.reset(f2_.CreateAnswer(offer.get(), options, NULL));
ASSERT_TRUE(answer.get() != NULL);
audio_media_desc = static_cast<const cricket::MediaContentDescription*>(
answer->GetContentDescriptionByName("audio"));
ASSERT_TRUE(audio_media_desc != NULL);
video_media_desc = static_cast<const cricket::MediaContentDescription*>(
answer->GetContentDescriptionByName("video"));
ASSERT_TRUE(video_media_desc != NULL);
EXPECT_EQ(1u, audio_media_desc->cryptos().size());
EXPECT_EQ(1u, video_media_desc->cryptos().size());
audio_trans_desc = answer->GetTransportDescriptionByName("audio");
ASSERT_TRUE(audio_trans_desc != NULL);
video_trans_desc = answer->GetTransportDescriptionByName("video");
ASSERT_TRUE(video_trans_desc != NULL);
ASSERT_TRUE(audio_trans_desc->identity_fingerprint.get() == NULL);
ASSERT_TRUE(video_trans_desc->identity_fingerprint.get() == NULL);
// Enable DTLS; the answer should now only have DTLS support.
tdf2_.set_secure(SEC_ENABLED);
answer.reset(f2_.CreateAnswer(offer.get(), options, NULL));
ASSERT_TRUE(answer.get() != NULL);
audio_media_desc = static_cast<const cricket::MediaContentDescription*>(
answer->GetContentDescriptionByName("audio"));
ASSERT_TRUE(audio_media_desc != NULL);
video_media_desc = static_cast<const cricket::MediaContentDescription*>(
answer->GetContentDescriptionByName("video"));
ASSERT_TRUE(video_media_desc != NULL);
EXPECT_TRUE(audio_media_desc->cryptos().empty());
EXPECT_TRUE(video_media_desc->cryptos().empty());
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf),
audio_media_desc->protocol());
EXPECT_EQ(std::string(cricket::kMediaProtocolSavpf),
video_media_desc->protocol());
audio_trans_desc = answer->GetTransportDescriptionByName("audio");
ASSERT_TRUE(audio_trans_desc != NULL);
video_trans_desc = answer->GetTransportDescriptionByName("video");
ASSERT_TRUE(video_trans_desc != NULL);
ASSERT_TRUE(audio_trans_desc->identity_fingerprint.get() != NULL);
ASSERT_TRUE(video_trans_desc->identity_fingerprint.get() != NULL);
// Try creating offer again. DTLS enabled now, crypto's should be empty
// in new offer.
offer.reset(f1_.CreateOffer(options, offer.get()));
ASSERT_TRUE(offer.get() != NULL);
audio_media_desc = static_cast<const cricket::MediaContentDescription*>(
offer->GetContentDescriptionByName("audio"));
ASSERT_TRUE(audio_media_desc != NULL);
video_media_desc = static_cast<const cricket::MediaContentDescription*>(
offer->GetContentDescriptionByName("video"));
ASSERT_TRUE(video_media_desc != NULL);
EXPECT_TRUE(audio_media_desc->cryptos().empty());
EXPECT_TRUE(video_media_desc->cryptos().empty());
audio_trans_desc = offer->GetTransportDescriptionByName("audio");
ASSERT_TRUE(audio_trans_desc != NULL);
video_trans_desc = offer->GetTransportDescriptionByName("video");
ASSERT_TRUE(video_trans_desc != NULL);
ASSERT_TRUE(audio_trans_desc->identity_fingerprint.get() != NULL);
ASSERT_TRUE(video_trans_desc->identity_fingerprint.get() != NULL);
}
// Test that an answer can't be created if cryptos are required but the offer is
// unsecure.
TEST_F(MediaSessionDescriptionFactoryTest, TestSecureAnswerToUnsecureOffer) {
MediaSessionOptions options;
f1_.set_secure(SEC_DISABLED);
tdf1_.set_secure(SEC_DISABLED);
f2_.set_secure(SEC_REQUIRED);
tdf1_.set_secure(SEC_ENABLED);
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(options, NULL));
ASSERT_TRUE(offer.get() != NULL);
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), options, NULL));
EXPECT_TRUE(answer.get() == NULL);
}
// Test that we accept a DTLS offer without SDES and create an appropriate
// answer.
TEST_F(MediaSessionDescriptionFactoryTest, TestCryptoOfferDtlsButNotSdes) {
f1_.set_secure(SEC_DISABLED);
f2_.set_secure(SEC_ENABLED);
tdf1_.set_secure(SEC_ENABLED);
tdf2_.set_secure(SEC_ENABLED);
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
options.data_channel_type = cricket::DCT_RTP;
std::unique_ptr<SessionDescription> offer, answer;
// Generate an offer with DTLS but without SDES.
offer.reset(f1_.CreateOffer(options, NULL));
ASSERT_TRUE(offer.get() != NULL);
const AudioContentDescription* audio_offer =
GetFirstAudioContentDescription(offer.get());
ASSERT_TRUE(audio_offer->cryptos().empty());
const VideoContentDescription* video_offer =
GetFirstVideoContentDescription(offer.get());
ASSERT_TRUE(video_offer->cryptos().empty());
const DataContentDescription* data_offer =
GetFirstDataContentDescription(offer.get());
ASSERT_TRUE(data_offer->cryptos().empty());
const cricket::TransportDescription* audio_offer_trans_desc =
offer->GetTransportDescriptionByName("audio");
ASSERT_TRUE(audio_offer_trans_desc->identity_fingerprint.get() != NULL);
const cricket::TransportDescription* video_offer_trans_desc =
offer->GetTransportDescriptionByName("video");
ASSERT_TRUE(video_offer_trans_desc->identity_fingerprint.get() != NULL);
const cricket::TransportDescription* data_offer_trans_desc =
offer->GetTransportDescriptionByName("data");
ASSERT_TRUE(data_offer_trans_desc->identity_fingerprint.get() != NULL);
// Generate an answer with DTLS.
answer.reset(f2_.CreateAnswer(offer.get(), options, NULL));
ASSERT_TRUE(answer.get() != NULL);
const cricket::TransportDescription* audio_answer_trans_desc =
answer->GetTransportDescriptionByName("audio");
EXPECT_TRUE(audio_answer_trans_desc->identity_fingerprint.get() != NULL);
const cricket::TransportDescription* video_answer_trans_desc =
answer->GetTransportDescriptionByName("video");
EXPECT_TRUE(video_answer_trans_desc->identity_fingerprint.get() != NULL);
const cricket::TransportDescription* data_answer_trans_desc =
answer->GetTransportDescriptionByName("data");
EXPECT_TRUE(data_answer_trans_desc->identity_fingerprint.get() != NULL);
}
// Verifies if vad_enabled option is set to false, CN codecs are not present in
// offer or answer.
TEST_F(MediaSessionDescriptionFactoryTest, TestVADEnableOption) {
MediaSessionOptions options;
options.recv_audio = true;
options.recv_video = true;
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(options, NULL));
ASSERT_TRUE(offer.get() != NULL);
const ContentInfo* audio_content = offer->GetContentByName("audio");
EXPECT_FALSE(VerifyNoCNCodecs(audio_content));
options.vad_enabled = false;
offer.reset(f1_.CreateOffer(options, NULL));
ASSERT_TRUE(offer.get() != NULL);
audio_content = offer->GetContentByName("audio");
EXPECT_TRUE(VerifyNoCNCodecs(audio_content));
std::unique_ptr<SessionDescription> answer(
f1_.CreateAnswer(offer.get(), options, NULL));
ASSERT_TRUE(answer.get() != NULL);
audio_content = answer->GetContentByName("audio");
EXPECT_TRUE(VerifyNoCNCodecs(audio_content));
}
// Test that the content name ("mid" in SDP) is unchanged when creating a
// new offer.
TEST_F(MediaSessionDescriptionFactoryTest,
TestContentNameNotChangedInSubsequentOffers) {
MediaSessionOptions opts;
opts.recv_audio = true;
opts.recv_video = true;
opts.data_channel_type = cricket::DCT_SCTP;
// Create offer and modify the default content names.
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, nullptr));
for (ContentInfo& content : offer->contents()) {
content.name.append("_modified");
}
std::unique_ptr<SessionDescription> updated_offer(
f1_.CreateOffer(opts, offer.get()));
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 != nullptr);
ASSERT_TRUE(video_content != nullptr);
ASSERT_TRUE(data_content != nullptr);
EXPECT_EQ("audio_modified", audio_content->name);
EXPECT_EQ("video_modified", video_content->name);
EXPECT_EQ("data_modified", data_content->name);
}
class MediaProtocolTest : public ::testing::TestWithParam<const char*> {
public:
MediaProtocolTest() : f1_(&tdf1_), f2_(&tdf2_) {
f1_.set_audio_codecs(MAKE_VECTOR(kAudioCodecs1),
MAKE_VECTOR(kAudioCodecs1));
f1_.set_video_codecs(MAKE_VECTOR(kVideoCodecs1));
f1_.set_data_codecs(MAKE_VECTOR(kDataCodecs1));
f2_.set_audio_codecs(MAKE_VECTOR(kAudioCodecs2),
MAKE_VECTOR(kAudioCodecs2));
f2_.set_video_codecs(MAKE_VECTOR(kVideoCodecs2));
f2_.set_data_codecs(MAKE_VECTOR(kDataCodecs2));
f1_.set_secure(SEC_ENABLED);
f2_.set_secure(SEC_ENABLED);
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"))));
tdf1_.set_secure(SEC_ENABLED);
tdf2_.set_secure(SEC_ENABLED);
}
protected:
MediaSessionDescriptionFactory f1_;
MediaSessionDescriptionFactory f2_;
TransportDescriptionFactory tdf1_;
TransportDescriptionFactory tdf2_;
};
TEST_P(MediaProtocolTest, TestAudioVideoAcceptance) {
MediaSessionOptions opts;
opts.recv_video = true;
std::unique_ptr<SessionDescription> offer(f1_.CreateOffer(opts, nullptr));
ASSERT_TRUE(offer.get() != nullptr);
// Set the protocol for all the contents.
for (auto content : offer.get()->contents()) {
static_cast<MediaContentDescription*>(content.description)
->set_protocol(GetParam());
}
std::unique_ptr<SessionDescription> answer(
f2_.CreateAnswer(offer.get(), opts, nullptr));
const ContentInfo* ac = answer->GetContentByName("audio");
const ContentInfo* vc = answer->GetContentByName("video");
ASSERT_TRUE(ac != nullptr);
ASSERT_TRUE(vc != nullptr);
EXPECT_FALSE(ac->rejected); // the offer is accepted
EXPECT_FALSE(vc->rejected);
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
const VideoContentDescription* vcd =
static_cast<const VideoContentDescription*>(vc->description);
EXPECT_EQ(GetParam(), acd->protocol());
EXPECT_EQ(GetParam(), vcd->protocol());
}
INSTANTIATE_TEST_CASE_P(MediaProtocolPatternTest,
MediaProtocolTest,
::testing::ValuesIn(kMediaProtocols));
INSTANTIATE_TEST_CASE_P(MediaProtocolDtlsPatternTest,
MediaProtocolTest,
::testing::ValuesIn(kMediaProtocolsDtls));
TEST_F(MediaSessionDescriptionFactoryTest, TestSetAudioCodecs) {
TransportDescriptionFactory tdf;
MediaSessionDescriptionFactory sf(&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 recieve 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[1].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[1].channels = 0;
// Alther 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_TRUE(sf.audio_send_codecs() == send_codecs);
EXPECT_TRUE(sf.audio_recv_codecs() == recv_codecs);
EXPECT_TRUE(sf.audio_sendrecv_codecs() == sendrecv_codecs);
// Test empty send codecs list
sf.set_audio_codecs(no_codecs, recv_codecs);
EXPECT_TRUE(sf.audio_send_codecs() == no_codecs);
EXPECT_TRUE(sf.audio_recv_codecs() == recv_codecs);
EXPECT_TRUE(sf.audio_sendrecv_codecs() == no_codecs);
// Test empty recv codecs list
sf.set_audio_codecs(send_codecs, no_codecs);
EXPECT_TRUE(sf.audio_send_codecs() == send_codecs);
EXPECT_TRUE(sf.audio_recv_codecs() == no_codecs);
EXPECT_TRUE(sf.audio_sendrecv_codecs() == no_codecs);
// Test all empty codec lists
sf.set_audio_codecs(no_codecs, no_codecs);
EXPECT_TRUE(sf.audio_send_codecs() == no_codecs);
EXPECT_TRUE(sf.audio_recv_codecs() == no_codecs);
EXPECT_TRUE(sf.audio_sendrecv_codecs() == no_codecs);
}
namespace {
void TestAudioCodecsOffer(MediaContentDirection direction,
bool add_legacy_stream) {
TransportDescriptionFactory tdf;
MediaSessionDescriptionFactory sf(&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);
sf.set_add_legacy_streams(add_legacy_stream);
MediaSessionOptions opts;
opts.recv_audio = (direction == cricket::MD_RECVONLY ||
direction == cricket::MD_SENDRECV);
opts.recv_video = false;
if (direction == cricket::MD_SENDONLY || direction == cricket::MD_SENDRECV)
opts.AddSendStream(MEDIA_TYPE_AUDIO, kAudioTrack1, kMediaStream1);
std::unique_ptr<SessionDescription> offer(sf.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
const 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) {
AudioContentDescription* acd =
static_cast<AudioContentDescription*>(ac->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() == cricket::MD_SENDONLY) {
EXPECT_TRUE(acd->codecs() == send_codecs);
} else if (acd->direction() == cricket::MD_RECVONLY) {
EXPECT_TRUE(acd->codecs() == recv_codecs);
} else {
EXPECT_TRUE(acd->codecs() == sendrecv_codecs);
}
}
}
static const AudioCodec kOfferAnswerCodecs[] = {
AudioCodec(0, "codec0", 16000, -1, 1),
AudioCodec(1, "codec1", 8000, 13300, 1),
AudioCodec(2, "codec2", 8000, 64000, 1),
AudioCodec(3, "codec3", 8000, 64000, 1),
AudioCodec(4, "codec4", 8000, 0, 2),
AudioCodec(5, "codec5", 32000, 0, 1),
AudioCodec(6, "codec6", 48000, 0, 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
static const int kOfferSendCodecs[] = { 0, 1, 3, 5, 6 };
static 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.
static const int kAnswerSendCodecs[] = { 6, 5, 2, 3, 4 };
static const int kAnswerRecvCodecs[] = { 6, 5, 4, 1, 0 };
// The resulting sets of codecs in the answer in the AudioCodecsAnswerTest
static const int kResultSend_RecvCodecs[] = { 0, 1, 5, 6 };
static const int kResultRecv_SendCodecs[] = { 2, 3, 4, 6 };
static const int kResultSendrecv_SendCodecs[] = { 3, 6 };
static const int kResultSendrecv_RecvCodecs[] = { 1, 6 };
static 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(MediaContentDirection offer_direction,
MediaContentDirection answer_direction,
bool add_legacy_stream) {
TransportDescriptionFactory offer_tdf;
TransportDescriptionFactory answer_tdf;
MediaSessionDescriptionFactory offer_factory(&offer_tdf);
MediaSessionDescriptionFactory answer_factory(&answer_tdf);
offer_factory.set_audio_codecs(
VectorFromIndices(kOfferAnswerCodecs, kOfferSendCodecs),
VectorFromIndices(kOfferAnswerCodecs, kOfferRecvCodecs));
answer_factory.set_audio_codecs(
VectorFromIndices(kOfferAnswerCodecs, kAnswerSendCodecs),
VectorFromIndices(kOfferAnswerCodecs, kAnswerRecvCodecs));
// Never add a legacy stream to offer - we want to control the offer
// parameters exactly.
offer_factory.set_add_legacy_streams(false);
answer_factory.set_add_legacy_streams(add_legacy_stream);
MediaSessionOptions offer_opts;
offer_opts.recv_audio = (offer_direction == cricket::MD_RECVONLY ||
offer_direction == cricket::MD_SENDRECV);
offer_opts.recv_video = false;
if (offer_direction == cricket::MD_SENDONLY ||
offer_direction == cricket::MD_SENDRECV) {
offer_opts.AddSendStream(MEDIA_TYPE_AUDIO, kAudioTrack1, kMediaStream1);
}
std::unique_ptr<SessionDescription> offer(
offer_factory.CreateOffer(offer_opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
MediaSessionOptions answer_opts;
answer_opts.recv_audio = (answer_direction == cricket::MD_RECVONLY ||
answer_direction == cricket::MD_SENDRECV);
answer_opts.recv_video = false;
if (answer_direction == cricket::MD_SENDONLY ||
answer_direction == cricket::MD_SENDRECV) {
answer_opts.AddSendStream(MEDIA_TYPE_AUDIO, kAudioTrack1, kMediaStream1);
}
std::unique_ptr<SessionDescription> answer(
answer_factory.CreateAnswer(offer.get(), answer_opts, NULL));
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) {
const AudioContentDescription* acd =
static_cast<const AudioContentDescription*>(ac->description);
EXPECT_EQ(MEDIA_TYPE_AUDIO, acd->type());
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 cricket::MD_INACTIVE:
target_codecs = VectorFromIndices(kOfferAnswerCodecs,
kResultSendrecv_SendrecvCodecs);
break;
case cricket::MD_SENDONLY:
target_codecs = VectorFromIndices(kOfferAnswerCodecs,
kResultSend_RecvCodecs);
break;
case cricket::MD_RECVONLY:
target_codecs = VectorFromIndices(kOfferAnswerCodecs,
kResultRecv_SendCodecs);
break;
case cricket::MD_SENDRECV:
if (acd->direction() == cricket::MD_SENDONLY) {
target_codecs = VectorFromIndices(kOfferAnswerCodecs,
kResultSendrecv_SendCodecs);
} else if (acd->direction() == cricket::MD_RECVONLY) {
target_codecs = VectorFromIndices(kOfferAnswerCodecs,
kResultSendrecv_RecvCodecs);
} else {
target_codecs = VectorFromIndices(kOfferAnswerCodecs,
kResultSendrecv_SendrecvCodecs);
}
break;
}
auto format_codecs = [] (const std::vector<AudioCodec>& codecs) {
std::stringstream os;
bool first = true;
os << "{";
for (const auto& c : codecs) {
os << (first ? " " : ", ") << c.id;
first = false;
}
os << " }";
return os.str();
};
EXPECT_TRUE(acd->codecs() == target_codecs)
<< "Expected: " << format_codecs(target_codecs)
<< ", got: " << format_codecs(acd->codecs())
<< "; Offered: " << MediaContentDirectionToString(offer_direction)
<< ", answerer wants: "
<< MediaContentDirectionToString(answer_direction)
<< "; got: " << MediaContentDirectionToString(acd->direction());
} else {
EXPECT_EQ(offer_direction, cricket::MD_INACTIVE)
<< "Only inactive offers are allowed to not generate any audio content";
}
}
}
class AudioCodecsOfferTest
: public ::testing::TestWithParam<std::tr1::tuple<MediaContentDirection,
bool>> {
};
TEST_P(AudioCodecsOfferTest, TestCodecsInOffer) {
TestAudioCodecsOffer(std::tr1::get<0>(GetParam()),
std::tr1::get<1>(GetParam()));
}
INSTANTIATE_TEST_CASE_P(MediaSessionDescriptionFactoryTest,
AudioCodecsOfferTest,
::testing::Combine(
::testing::Values(cricket::MD_SENDONLY,
cricket::MD_RECVONLY,
cricket::MD_SENDRECV,
cricket::MD_INACTIVE),
::testing::Bool()));
class AudioCodecsAnswerTest
: public ::testing::TestWithParam<std::tr1::tuple<MediaContentDirection,
MediaContentDirection,
bool>> {
};
TEST_P(AudioCodecsAnswerTest, TestCodecsInAnswer) {
TestAudioCodecsAnswer(std::tr1::get<0>(GetParam()),
std::tr1::get<1>(GetParam()),
std::tr1::get<2>(GetParam()));
}
INSTANTIATE_TEST_CASE_P(MediaSessionDescriptionFactoryTest,
AudioCodecsAnswerTest,
::testing::Combine(
::testing::Values(cricket::MD_SENDONLY,
cricket::MD_RECVONLY,
cricket::MD_SENDRECV,
cricket::MD_INACTIVE),
::testing::Values(cricket::MD_SENDONLY,
cricket::MD_RECVONLY,
cricket::MD_SENDRECV,
cricket::MD_INACTIVE),
::testing::Bool()));
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