/*
* libjingle
* Copyright 2004 Google Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <string>
#include <vector>
#include "talk/media/base/codec.h"
#include "talk/media/base/testutils.h"
#include "webrtc/p2p/base/constants.h"
#include "webrtc/p2p/base/transportdescription.h"
#include "webrtc/p2p/base/transportinfo.h"
#include "talk/session/media/mediasession.h"
#include "talk/session/media/srtpfilter.h"
#include "webrtc/base/fakesslidentity.h"
#include "webrtc/base/gunit.h"
#include "webrtc/base/messagedigest.h"
#include "webrtc/base/ssladapter.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::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::RtpHeaderExtension;
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;
static const AudioCodec kAudioCodecs1[] = {
AudioCodec(103, "ISAC", 16000, -1, 1, 6),
AudioCodec(102, "iLBC", 8000, 13300, 1, 5),
AudioCodec(0, "PCMU", 8000, 64000, 1, 4),
AudioCodec(8, "PCMA", 8000, 64000, 1, 3),
AudioCodec(117, "red", 8000, 0, 1, 2),
AudioCodec(107, "CN", 48000, 0, 1, 1)
};
static const AudioCodec kAudioCodecs2[] = {
AudioCodec(126, "speex", 16000, 22000, 1, 3),
AudioCodec(0, "PCMU", 8000, 64000, 1, 2),
AudioCodec(127, "iLBC", 8000, 13300, 1, 1),
};
static const AudioCodec kAudioCodecsAnswer[] = {
AudioCodec(102, "iLBC", 8000, 13300, 1, 5),
AudioCodec(0, "PCMU", 8000, 64000, 1, 4),
};
static const VideoCodec kVideoCodecs1[] = {
VideoCodec(96, "H264-SVC", 320, 200, 30, 2),
VideoCodec(97, "H264", 320, 200, 30, 1)
};
static const VideoCodec kVideoCodecs2[] = {
VideoCodec(126, "H264", 320, 200, 30, 2),
VideoCodec(127, "H263", 320, 200, 30, 1)
};
static const VideoCodec kVideoCodecsAnswer[] = {
VideoCodec(97, "H264", 320, 200, 30, 1)
};
static const DataCodec kDataCodecs1[] = {
DataCodec(98, "binary-data", 2),
DataCodec(99, "utf8-text", 1)
};
static const DataCodec kDataCodecs2[] = {
DataCodec(126, "binary-data", 2),
DataCodec(127, "utf8-text", 1)
};
static const DataCodec kDataCodecsAnswer[] = {
DataCodec(98, "binary-data", 2),
DataCodec(99, "utf8-text", 1)
};
static const RtpHeaderExtension kAudioRtpExtension1[] = {
RtpHeaderExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 8),
RtpHeaderExtension("http://google.com/testing/audio_something", 10),
};
static const RtpHeaderExtension kAudioRtpExtension2[] = {
RtpHeaderExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 2),
RtpHeaderExtension("http://google.com/testing/audio_something_else", 8),
RtpHeaderExtension("http://google.com/testing/both_audio_and_video", 7),
};
static const RtpHeaderExtension kAudioRtpExtension3[] = {
RtpHeaderExtension("http://google.com/testing/audio_something", 2),
RtpHeaderExtension("http://google.com/testing/both_audio_and_video", 3),
};
static const RtpHeaderExtension kAudioRtpExtensionAnswer[] = {
RtpHeaderExtension("urn:ietf:params:rtp-hdrext:ssrc-audio-level", 8),
};
static const RtpHeaderExtension kVideoRtpExtension1[] = {
RtpHeaderExtension("urn:ietf:params:rtp-hdrext:toffset", 14),
RtpHeaderExtension("http://google.com/testing/video_something", 13),
};
static const RtpHeaderExtension kVideoRtpExtension2[] = {
RtpHeaderExtension("urn:ietf:params:rtp-hdrext:toffset", 2),
RtpHeaderExtension("http://google.com/testing/video_something_else", 14),
RtpHeaderExtension("http://google.com/testing/both_audio_and_video", 7),
};
static const RtpHeaderExtension kVideoRtpExtension3[] = {
RtpHeaderExtension("http://google.com/testing/video_something", 4),
RtpHeaderExtension("http://google.com/testing/both_audio_and_video", 5),
};
static const RtpHeaderExtension kVideoRtpExtensionAnswer[] = {
RtpHeaderExtension("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 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));
f1_.set_video_codecs(MAKE_VECTOR(kVideoCodecs1));
f1_.set_data_codecs(MAKE_VECTOR(kDataCodecs1));
f2_.set_audio_codecs(MAKE_VECTOR(kAudioCodecs2));
f2_.set_video_codecs(MAKE_VECTOR(kVideoCodecs2));
f2_.set_data_codecs(MAKE_VECTOR(kDataCodecs2));
tdf1_.set_certificate(rtc::RTCCertificate::Create(
rtc::scoped_ptr<rtc::SSLIdentity>(new rtc::FakeSSLIdentity("id1"))));
tdf2_.set_certificate(rtc::RTCCertificate::Create(
rtc::scoped_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";
rtc::scoped_ptr<SessionDescription> current_desc;
rtc::scoped_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 {
rtc::scoped_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;
rtc::scoped_ptr<SessionDescription> ref_desc;
rtc::scoped_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;
rtc::scoped_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);
rtc::scoped_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);
rtc::scoped_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_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);
rtc::scoped_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_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_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;
rtc::scoped_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;
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
rtc::scoped_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;
rtc::scoped_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);
rtc::scoped_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_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);
rtc::scoped_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);
rtc::scoped_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;
rtc::scoped_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);
rtc::scoped_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);
rtc::scoped_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;
rtc::scoped_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;
rtc::scoped_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;
rtc::scoped_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.
rtc::scoped_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);
rtc::scoped_ptr<SessionDescription> offer(
f1_.CreateOffer(MediaSessionOptions(), NULL));
ASSERT_TRUE(offer.get() != NULL);
rtc::scoped_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);
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
rtc::scoped_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);
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
rtc::scoped_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;
rtc::scoped_ptr<SessionDescription> offer1(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer1.get() != NULL);
// Appends audio to the offer.
opts.recv_audio = true;
rtc::scoped_ptr<SessionDescription> offer2(
f1_.CreateOffer(opts, offer1.get()));
ASSERT_TRUE(offer2.get() != NULL);
// Appends video to the offer.
opts.recv_video = true;
rtc::scoped_ptr<SessionDescription> offer3(
f1_.CreateOffer(opts, offer2.get()));
ASSERT_TRUE(offer3.get() != NULL);
rtc::scoped_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));
}
// 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);
rtc::scoped_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);
rtc::scoped_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);
rtc::scoped_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());
rtc::scoped_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));
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
rtc::scoped_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);
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
rtc::scoped_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);
rtc::scoped_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;
rtc::scoped_ptr<SessionDescription> offer;
rtc::scoped_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;
rtc::scoped_ptr<SessionDescription>
offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
rtc::scoped_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;
rtc::scoped_ptr<SessionDescription>
offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
rtc::scoped_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;
rtc::scoped_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;
rtc::scoped_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);
rtc::scoped_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_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);
rtc::scoped_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);
EXPECT_NE(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);
}
// 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);
rtc::scoped_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);
rtc::scoped_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);
rtc::scoped_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 traacks and remove 1 audio track.
opts.AddSendStream(MEDIA_TYPE_VIDEO, kVideoTrack2, kMediaStream2);
opts.RemoveSendStream(MEDIA_TYPE_AUDIO, kAudioTrack2);
opts.RemoveSendStream(MEDIA_TYPE_DATA, kDataTrack2);
rtc::scoped_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);
EXPECT_NE(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;
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
rtc::scoped_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());
rtc::scoped_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);
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
rtc::scoped_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 preference order,
// if |f2_| creates an updated offer even though the default payload types
// are different from |f1_|.
expected_codecs[0].preference = f1_codecs[1].preference;
rtc::scoped_ptr<SessionDescription> updated_offer(
f2_.CreateOffer(opts, answer.get()));
ASSERT_TRUE(updated_offer);
rtc::scoped_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;
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
rtc::scoped_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);
rtc::scoped_ptr<SessionDescription> updated_offer(
f2_.CreateOffer(opts, answer.get()));
ASSERT_TRUE(updated_offer);
rtc::scoped_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);
}
// 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, 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);
rtc::scoped_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);
rtc::scoped_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);
rtc::scoped_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.
rtc::scoped_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.
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
ASSERT_TRUE(offer.get() != NULL);
rtc::scoped_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 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, 1));
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.
rtc::scoped_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));
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, NULL));
rtc::scoped_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());
rtc::scoped_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 RtpHeaderExtension kUpdatedAudioRtpExtensions[] = {
kAudioRtpExtensionAnswer[0],
RtpHeaderExtension(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 RtpHeaderExtension kUpdatedVideoRtpExtensions[] = {
kVideoRtpExtensionAnswer[0],
RtpHeaderExtension(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,
RtpHeaderExtensionIdReused) {
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));
rtc::scoped_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 RtpHeaderExtension 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
rtc::scoped_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);
rtc::scoped_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);
rtc::scoped_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);
rtc::scoped_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);
rtc::scoped_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);
rtc::scoped_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;
rtc::scoped_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);
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(options,
NULL));
ASSERT_TRUE(offer.get() != NULL);
rtc::scoped_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;
rtc::scoped_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;
rtc::scoped_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));
rtc::scoped_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.
rtc::scoped_ptr<SessionDescription> offer(f1_.CreateOffer(opts, nullptr));
for (ContentInfo& content : offer->contents()) {
content.name.append("_modified");
}
rtc::scoped_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);
}