Explicitly inform PacketRouter which RTP-RTCP modules are REMB-candidates

BUG=webrtc:7860

Review-Url: https://codereview.webrtc.org/2973363002
Cr-Commit-Position: refs/heads/master@{#19201}
This commit is contained in:
eladalon 2017-08-01 06:30:28 -07:00 committed by Commit Bot
parent ddfa252b50
commit 822ff2b794
6 changed files with 390 additions and 81 deletions

View File

@ -22,73 +22,63 @@ namespace webrtc {
PacketRouter::PacketRouter()
: last_remb_time_ms_(rtc::TimeMillis()),
last_send_bitrate_bps_(0),
active_remb_module_(nullptr),
transport_seq_(0) {}
PacketRouter::~PacketRouter() {
RTC_DCHECK(rtp_send_modules_.empty());
RTC_DCHECK(rtp_receive_modules_.empty());
RTC_DCHECK(sender_remb_candidates_.empty());
RTC_DCHECK(receiver_remb_candidates_.empty());
RTC_DCHECK(active_remb_module_ == nullptr);
}
void PacketRouter::AddSendRtpModule(RtpRtcp* rtp_module) {
void PacketRouter::AddSendRtpModule(RtpRtcp* rtp_module, bool remb_candidate) {
rtc::CritScope cs(&modules_crit_);
RTC_DCHECK(std::find(rtp_send_modules_.begin(), rtp_send_modules_.end(),
rtp_module) == rtp_send_modules_.end());
if (rtp_send_modules_.empty() && !rtp_receive_modules_.empty()) {
rtp_receive_modules_.front()->SetREMBStatus(false);
}
// Put modules which can use regular payload packets (over rtx) instead of
// padding first as it's less of a waste
if ((rtp_module->RtxSendStatus() & kRtxRedundantPayloads) > 0) {
if (!rtp_send_modules_.empty()) {
rtp_send_modules_.front()->SetREMBStatus(false);
}
rtp_send_modules_.push_front(rtp_module);
rtp_module->SetREMBStatus(true);
} else {
if (rtp_send_modules_.empty()) {
rtp_module->SetREMBStatus(true);
}
rtp_send_modules_.push_back(rtp_module);
}
if (remb_candidate) {
AddRembModuleCandidate(rtp_module, true);
}
}
void PacketRouter::RemoveSendRtpModule(RtpRtcp* rtp_module) {
rtc::CritScope cs(&modules_crit_);
RTC_DCHECK(std::find(rtp_send_modules_.begin(), rtp_send_modules_.end(),
rtp_module) != rtp_send_modules_.end());
rtp_send_modules_.remove(rtp_module);
rtp_module->SetREMBStatus(false);
if (!rtp_send_modules_.empty()) {
rtp_send_modules_.front()->SetREMBStatus(true);
} else if (!rtp_receive_modules_.empty()) {
rtp_receive_modules_.front()->SetREMBStatus(true);
}
MaybeRemoveRembModuleCandidate(rtp_module, /* sender = */ true);
auto it =
std::find(rtp_send_modules_.begin(), rtp_send_modules_.end(), rtp_module);
RTC_DCHECK(it != rtp_send_modules_.end());
rtp_send_modules_.erase(it);
}
void PacketRouter::AddReceiveRtpModule(RtpRtcp* rtp_module) {
void PacketRouter::AddReceiveRtpModule(RtpRtcp* rtp_module,
bool remb_candidate) {
rtc::CritScope cs(&modules_crit_);
RTC_DCHECK(std::find(rtp_receive_modules_.begin(), rtp_receive_modules_.end(),
rtp_module) == rtp_receive_modules_.end());
if (rtp_send_modules_.empty() && rtp_receive_modules_.empty()) {
rtp_module->SetREMBStatus(true);
}
rtp_receive_modules_.push_back(rtp_module);
if (remb_candidate) {
AddRembModuleCandidate(rtp_module, false);
}
}
void PacketRouter::RemoveReceiveRtpModule(RtpRtcp* rtp_module) {
rtc::CritScope cs(&modules_crit_);
MaybeRemoveRembModuleCandidate(rtp_module, /* sender = */ false);
const auto& it = std::find(rtp_receive_modules_.begin(),
rtp_receive_modules_.end(), rtp_module);
RTC_DCHECK(it != rtp_receive_modules_.end());
rtp_receive_modules_.erase(it);
if (rtp_send_modules_.empty()) {
rtp_module->SetREMBStatus(false);
if (!rtp_receive_modules_.empty()) {
rtp_receive_modules_.front()->SetREMBStatus(true);
}
}
}
bool PacketRouter::TimeToSendPacket(uint32_t ssrc,
@ -190,18 +180,17 @@ void PacketRouter::OnReceiveBitrateChanged(const std::vector<uint32_t>& ssrcs,
bool PacketRouter::SendRemb(uint32_t bitrate_bps,
const std::vector<uint32_t>& ssrcs) {
rtc::CritScope lock(&modules_crit_);
RtpRtcp* remb_module;
if (!rtp_send_modules_.empty())
remb_module = rtp_send_modules_.front();
else if (!rtp_receive_modules_.empty())
remb_module = rtp_receive_modules_.front();
else
if (!active_remb_module_) {
return false;
}
// The Add* and Remove* methods above ensure that this (and only this) module
// has REMB enabled. REMB should be disabled on all other modules, because
// otherwise, they will send REMB with stale info.
RTC_DCHECK(remb_module->REMB());
remb_module->SetREMBData(bitrate_bps, ssrcs);
RTC_DCHECK(active_remb_module_->REMB());
active_remb_module_->SetREMBData(bitrate_bps, ssrcs);
return true;
}
@ -222,4 +211,69 @@ bool PacketRouter::SendTransportFeedback(rtcp::TransportFeedback* packet) {
return false;
}
void PacketRouter::AddRembModuleCandidate(RtpRtcp* candidate_module,
bool sender) {
RTC_DCHECK(candidate_module);
std::vector<RtpRtcp*>& candidates =
sender ? sender_remb_candidates_ : receiver_remb_candidates_;
RTC_DCHECK(std::find(candidates.cbegin(), candidates.cend(),
candidate_module) == candidates.cend());
candidates.push_back(candidate_module);
DetermineActiveRembModule();
}
void PacketRouter::MaybeRemoveRembModuleCandidate(RtpRtcp* candidate_module,
bool sender) {
RTC_DCHECK(candidate_module);
std::vector<RtpRtcp*>& candidates =
sender ? sender_remb_candidates_ : receiver_remb_candidates_;
auto it = std::find(candidates.begin(), candidates.end(), candidate_module);
if (it == candidates.end()) {
return; // Function called due to removal of non-REMB-candidate module.
}
if (*it == active_remb_module_) {
UnsetActiveRembModule();
}
candidates.erase(it);
DetermineActiveRembModule();
}
void PacketRouter::UnsetActiveRembModule() {
RTC_CHECK(active_remb_module_);
RTC_DCHECK(active_remb_module_->REMB());
active_remb_module_->SetREMBStatus(false);
active_remb_module_ = nullptr;
}
void PacketRouter::DetermineActiveRembModule() {
// Sender modules take precedence over receiver modules, because SRs (sender
// reports) are sent more frequently than RR (receiver reports).
// When adding the first sender module, we should change the active REMB
// module to be that. Otherwise, we remain with the current active module.
RtpRtcp* new_active_remb_module_;
if (!sender_remb_candidates_.empty()) {
new_active_remb_module_ = sender_remb_candidates_.front();
} else if (!receiver_remb_candidates_.empty()) {
new_active_remb_module_ = receiver_remb_candidates_.front();
} else {
new_active_remb_module_ = nullptr;
}
if (new_active_remb_module_ != active_remb_module_) {
if (active_remb_module_) {
UnsetActiveRembModule();
}
if (new_active_remb_module_) {
RTC_DCHECK(!new_active_remb_module_->REMB());
new_active_remb_module_->SetREMBStatus(true);
}
}
active_remb_module_ = new_active_remb_module_;
}
} // namespace webrtc

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@ -49,11 +49,18 @@ class PacketRouter : public PacedSender::PacketSender,
RTC_DEPRECATED void RemoveRtpModule(RtpRtcp* rtp_module) {
RemoveReceiveRtpModule(rtp_module);
}
void AddSendRtpModule(RtpRtcp* rtp_module);
void RemoveSendRtpModule(RtpRtcp* rtp_module);
void AddReceiveRtpModule(RtpRtcp* rtp_module);
void AddSendRtpModule(RtpRtcp* rtp_module, bool remb_candidate);
void RemoveSendRtpModule(RtpRtcp* rtp_module);
RTC_DEPRECATED void AddSendRtpModule(RtpRtcp* rtp_module) {
AddSendRtpModule(rtp_module, true);
}
void AddReceiveRtpModule(RtpRtcp* rtp_module, bool remb_candidate);
void RemoveReceiveRtpModule(RtpRtcp* rtp_module);
RTC_DEPRECATED void AddReceiveRtpModule(RtpRtcp* rtp_module) {
AddReceiveRtpModule(rtp_module, true);
}
// Implements PacedSender::Callback.
bool TimeToSendPacket(uint32_t ssrc,
@ -84,11 +91,20 @@ class PacketRouter : public PacedSender::PacketSender,
virtual bool SendTransportFeedback(rtcp::TransportFeedback* packet);
private:
void AddRembModuleCandidate(RtpRtcp* candidate_module, bool sender)
EXCLUSIVE_LOCKS_REQUIRED(modules_crit_);
void MaybeRemoveRembModuleCandidate(RtpRtcp* candidate_module, bool sender)
EXCLUSIVE_LOCKS_REQUIRED(modules_crit_);
void UnsetActiveRembModule() EXCLUSIVE_LOCKS_REQUIRED(modules_crit_);
void DetermineActiveRembModule() EXCLUSIVE_LOCKS_REQUIRED(modules_crit_);
rtc::RaceChecker pacer_race_;
rtc::CriticalSection modules_crit_;
std::list<RtpRtcp*> rtp_send_modules_ GUARDED_BY(modules_crit_);
std::vector<RtpRtcp*> rtp_receive_modules_ GUARDED_BY(modules_crit_);
// TODO(eladalon): remb_crit_ only ever held from one function, and it's not
// clear if that function can actually be called from more than one thread.
rtc::CriticalSection remb_crit_;
// The last time a REMB was sent.
int64_t last_remb_time_ms_ GUARDED_BY(remb_crit_);
@ -96,6 +112,12 @@ class PacketRouter : public PacedSender::PacketSender,
// The last bitrate update.
uint32_t bitrate_bps_ GUARDED_BY(remb_crit_);
// Candidates for the REMB module can be RTP sender/receiver modules, with
// the sender modules taking precedence.
std::vector<RtpRtcp*> sender_remb_candidates_ GUARDED_BY(modules_crit_);
std::vector<RtpRtcp*> receiver_remb_candidates_ GUARDED_BY(modules_crit_);
RtpRtcp* active_remb_module_ GUARDED_BY(modules_crit_);
volatile int transport_seq_;
RTC_DISALLOW_COPY_AND_ASSIGN(PacketRouter);

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@ -25,23 +25,41 @@ using ::testing::AnyNumber;
using ::testing::Field;
using ::testing::NiceMock;
using ::testing::Return;
using ::testing::ReturnPointee;
using ::testing::SaveArg;
namespace webrtc {
// TODO(eladalon): Restructure and/or replace the existing monolithic tests
// (only some of the test are monolithic) according to the new
// guidelines - small tests for one thing at a time.
// (I'm not removing any tests during CL, so as to demonstrate no regressions.)
class MockRtpRtcpWithRembTracking : public MockRtpRtcp {
public:
MockRtpRtcpWithRembTracking() {
ON_CALL(*this, SetREMBStatus(_)).WillByDefault(SaveArg<0>(&remb_));
ON_CALL(*this, REMB()).WillByDefault(ReturnPointee(&remb_));
}
private:
bool remb_ = false;
};
class PacketRouterTest : public ::testing::Test {
public:
PacketRouterTest() : packet_router_(new PacketRouter()) {}
protected:
static const int kProbeMinProbes = 5;
static const int kProbeMinBytes = 1000;
static constexpr int kProbeMinProbes = 5;
static constexpr int kProbeMinBytes = 1000;
const std::unique_ptr<PacketRouter> packet_router_;
};
TEST_F(PacketRouterTest, TimeToSendPacket) {
NiceMock<MockRtpRtcp> rtp_1;
NiceMock<MockRtpRtcp> rtp_2;
packet_router_->AddSendRtpModule(&rtp_1);
packet_router_->AddSendRtpModule(&rtp_2);
packet_router_->AddSendRtpModule(&rtp_1, false);
packet_router_->AddSendRtpModule(&rtp_2, false);
const uint16_t kSsrc1 = 1234;
uint16_t sequence_number = 17;
@ -125,8 +143,8 @@ TEST_F(PacketRouterTest, TimeToSendPadding) {
// rtp_2 will be prioritized for padding.
EXPECT_CALL(rtp_2, RtxSendStatus()).WillOnce(Return(kRtxRedundantPayloads));
EXPECT_CALL(rtp_2, SSRC()).WillRepeatedly(Return(kSsrc2));
packet_router_->AddSendRtpModule(&rtp_1);
packet_router_->AddSendRtpModule(&rtp_2);
packet_router_->AddSendRtpModule(&rtp_1, false);
packet_router_->AddSendRtpModule(&rtp_2, false);
// Default configuration, sending padding on all modules sending media,
// ordered by priority (based on rtx mode).
@ -210,7 +228,7 @@ TEST_F(PacketRouterTest, TimeToSendPadding) {
TEST_F(PacketRouterTest, SenderOnlyFunctionsRespectSendingMedia) {
NiceMock<MockRtpRtcp> rtp;
packet_router_->AddSendRtpModule(&rtp);
packet_router_->AddSendRtpModule(&rtp, false);
static const uint16_t kSsrc = 1234;
EXPECT_CALL(rtp, SSRC()).WillRepeatedly(Return(kSsrc));
EXPECT_CALL(rtp, SendingMedia()).WillRepeatedly(Return(false));
@ -246,8 +264,8 @@ TEST_F(PacketRouterTest, AllocateSequenceNumbers) {
TEST_F(PacketRouterTest, SendTransportFeedback) {
NiceMock<MockRtpRtcp> rtp_1;
NiceMock<MockRtpRtcp> rtp_2;
packet_router_->AddSendRtpModule(&rtp_1);
packet_router_->AddReceiveRtpModule(&rtp_2);
packet_router_->AddSendRtpModule(&rtp_1, false);
packet_router_->AddReceiveRtpModule(&rtp_2, false);
rtcp::TransportFeedback feedback;
EXPECT_CALL(rtp_1, SendFeedbackPacket(_)).Times(1).WillOnce(Return(true));
@ -258,19 +276,60 @@ TEST_F(PacketRouterTest, SendTransportFeedback) {
packet_router_->RemoveReceiveRtpModule(&rtp_2);
}
#if RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
TEST_F(PacketRouterTest, DoubleRegistrationOfSendModuleDisallowed) {
NiceMock<MockRtpRtcp> module;
constexpr bool remb_candidate = false; // Value irrelevant.
packet_router_->AddSendRtpModule(&module, remb_candidate);
EXPECT_DEATH(packet_router_->AddSendRtpModule(&module, remb_candidate), "");
// Test tear-down
packet_router_->RemoveSendRtpModule(&module);
}
TEST_F(PacketRouterTest, DoubleRegistrationOfReceiveModuleDisallowed) {
NiceMock<MockRtpRtcp> module;
constexpr bool remb_candidate = false; // Value irrelevant.
packet_router_->AddReceiveRtpModule(&module, remb_candidate);
EXPECT_DEATH(packet_router_->AddReceiveRtpModule(&module, remb_candidate),
"");
// Test tear-down
packet_router_->RemoveReceiveRtpModule(&module);
}
TEST_F(PacketRouterTest, RemovalOfNeverAddedSendModuleDisallowed) {
NiceMock<MockRtpRtcp> module;
EXPECT_DEATH(packet_router_->RemoveSendRtpModule(&module), "");
}
TEST_F(PacketRouterTest, RemovalOfNeverAddedReceiveModuleDisallowed) {
NiceMock<MockRtpRtcp> module;
EXPECT_DEATH(packet_router_->RemoveReceiveRtpModule(&module), "");
}
#endif // RTC_DCHECK_IS_ON && GTEST_HAS_DEATH_TEST && !defined(WEBRTC_ANDROID)
// TODO(eladalon): Remove this test; it should be covered by:
// 1. SendCandidatePreferredOverReceiveCandidate_SendModuleAddedFirst
// 2. SendCandidatePreferredOverReceiveCandidate_ReceiveModuleAddedFirst
// 3. LowerEstimateToSendRemb
// (Not removing in this CL to prove it doesn't break this test.)
TEST(PacketRouterRembTest, PreferSendModuleOverReceiveModule) {
rtc::ScopedFakeClock clock;
NiceMock<MockRtpRtcp> rtp_recv;
NiceMock<MockRtpRtcp> rtp_send;
NiceMock<MockRtpRtcpWithRembTracking> rtp_recv;
NiceMock<MockRtpRtcpWithRembTracking> rtp_send;
PacketRouter packet_router;
EXPECT_CALL(rtp_recv, SetREMBStatus(true)).Times(1);
packet_router.AddReceiveRtpModule(&rtp_recv);
packet_router.AddReceiveRtpModule(&rtp_recv, true);
ASSERT_TRUE(rtp_recv.REMB());
const uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
ON_CALL(rtp_recv, REMB()).WillByDefault(Return(true));
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
// Call OnReceiveBitrateChanged twice to get a first estimate.
@ -279,35 +338,32 @@ TEST(PacketRouterRembTest, PreferSendModuleOverReceiveModule) {
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
// Add a send module, which should be preferred over the receive module.
EXPECT_CALL(rtp_recv, SetREMBStatus(false)).Times(1);
EXPECT_CALL(rtp_send, SetREMBStatus(true)).Times(1);
packet_router.AddSendRtpModule(&rtp_send);
ON_CALL(rtp_recv, REMB()).WillByDefault(Return(false));
ON_CALL(rtp_send, REMB()).WillByDefault(Return(true));
packet_router.AddSendRtpModule(&rtp_send, true);
EXPECT_FALSE(rtp_recv.REMB());
EXPECT_TRUE(rtp_send.REMB());
// Lower bitrate to send another REMB packet.
EXPECT_CALL(rtp_send, SetREMBData(bitrate_estimate - 100, ssrcs)).Times(1);
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate - 100);
EXPECT_CALL(rtp_send, SetREMBStatus(false)).Times(1);
EXPECT_CALL(rtp_recv, SetREMBStatus(true)).Times(1);
packet_router.RemoveSendRtpModule(&rtp_send);
EXPECT_CALL(rtp_recv, SetREMBStatus(false)).Times(1);
EXPECT_TRUE(rtp_recv.REMB());
EXPECT_FALSE(rtp_send.REMB());
packet_router.RemoveReceiveRtpModule(&rtp_recv);
}
TEST(PacketRouterRembTest, LowerEstimateToSendRemb) {
rtc::ScopedFakeClock clock;
NiceMock<MockRtpRtcp> rtp;
NiceMock<MockRtpRtcpWithRembTracking> rtp;
PacketRouter packet_router;
EXPECT_CALL(rtp, SetREMBStatus(true)).Times(1);
packet_router.AddSendRtpModule(&rtp);
packet_router.AddSendRtpModule(&rtp, true);
EXPECT_TRUE(rtp.REMB());
uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
ON_CALL(rtp, REMB()).WillByDefault(Return(true));
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
// Call OnReceiveBitrateChanged twice to get a first estimate.
@ -321,15 +377,15 @@ TEST(PacketRouterRembTest, LowerEstimateToSendRemb) {
EXPECT_CALL(rtp, SetREMBData(bitrate_estimate, ssrcs)).Times(1);
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
EXPECT_CALL(rtp, SetREMBStatus(false)).Times(1);
packet_router.RemoveSendRtpModule(&rtp);
EXPECT_FALSE(rtp.REMB());
}
TEST(PacketRouterRembTest, VerifyIncreasingAndDecreasing) {
rtc::ScopedFakeClock clock;
NiceMock<MockRtpRtcp> rtp;
PacketRouter packet_router;
packet_router.AddSendRtpModule(&rtp);
packet_router.AddSendRtpModule(&rtp, true);
uint32_t bitrate_estimate[] = {456, 789};
std::vector<uint32_t> ssrcs = {1234, 5678};
@ -355,7 +411,7 @@ TEST(PacketRouterRembTest, NoRembForIncreasedBitrate) {
rtc::ScopedFakeClock clock;
NiceMock<MockRtpRtcp> rtp;
PacketRouter packet_router;
packet_router.AddSendRtpModule(&rtp);
packet_router.AddSendRtpModule(&rtp, true);
uint32_t bitrate_estimate = 456;
std::vector<uint32_t> ssrcs = {1234, 5678};
@ -385,8 +441,8 @@ TEST(PacketRouterRembTest, ChangeSendRtpModule) {
NiceMock<MockRtpRtcp> rtp_send;
NiceMock<MockRtpRtcp> rtp_recv;
PacketRouter packet_router;
packet_router.AddSendRtpModule(&rtp_send);
packet_router.AddReceiveRtpModule(&rtp_recv);
packet_router.AddSendRtpModule(&rtp_send, true);
packet_router.AddReceiveRtpModule(&rtp_recv, true);
uint32_t bitrate_estimate = 456;
std::vector<uint32_t> ssrcs = {1234, 5678};
@ -423,7 +479,7 @@ TEST(PacketRouterRembTest, OnlyOneRembForRepeatedOnReceiveBitrateChanged) {
rtc::ScopedFakeClock clock;
NiceMock<MockRtpRtcp> rtp;
PacketRouter packet_router;
packet_router.AddSendRtpModule(&rtp);
packet_router.AddSendRtpModule(&rtp, true);
uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
@ -455,7 +511,7 @@ TEST(PacketRouterRembTest, NoSendingRtpModule) {
PacketRouter packet_router;
EXPECT_CALL(rtp, SetREMBStatus(true)).Times(1);
packet_router.AddReceiveRtpModule(&rtp);
packet_router.AddReceiveRtpModule(&rtp, true);
uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
@ -476,4 +532,176 @@ TEST(PacketRouterRembTest, NoSendingRtpModule) {
packet_router.RemoveReceiveRtpModule(&rtp);
}
TEST(PacketRouterRembTest, NonCandidateSendRtpModuleNotUsedForRemb) {
rtc::ScopedFakeClock clock;
PacketRouter packet_router;
NiceMock<MockRtpRtcpWithRembTracking> module;
constexpr bool remb_candidate = false;
packet_router.AddSendRtpModule(&module, remb_candidate);
EXPECT_FALSE(module.REMB());
constexpr uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
EXPECT_CALL(module, SetREMBData(_, _)).Times(0);
clock.AdvanceTime(rtc::TimeDelta::FromMilliseconds(1000));
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
// Test tear-down
packet_router.RemoveSendRtpModule(&module);
}
TEST(PacketRouterRembTest, CandidateSendRtpModuleUsedForRemb) {
rtc::ScopedFakeClock clock;
PacketRouter packet_router;
NiceMock<MockRtpRtcpWithRembTracking> module;
constexpr bool remb_candidate = true;
packet_router.AddSendRtpModule(&module, remb_candidate);
EXPECT_TRUE(module.REMB());
constexpr uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
EXPECT_CALL(module, SetREMBData(bitrate_estimate, ssrcs)).Times(1);
clock.AdvanceTime(rtc::TimeDelta::FromMilliseconds(1000));
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
// Test tear-down
packet_router.RemoveSendRtpModule(&module);
}
TEST(PacketRouterRembTest, NonCandidateReceiveRtpModuleNotUsedForRemb) {
rtc::ScopedFakeClock clock;
PacketRouter packet_router;
NiceMock<MockRtpRtcpWithRembTracking> module;
constexpr bool remb_candidate = false;
packet_router.AddReceiveRtpModule(&module, remb_candidate);
ASSERT_FALSE(module.REMB());
constexpr uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
EXPECT_CALL(module, SetREMBData(_, _)).Times(0);
clock.AdvanceTime(rtc::TimeDelta::FromMilliseconds(1000));
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
// Test tear-down
packet_router.RemoveReceiveRtpModule(&module);
}
TEST(PacketRouterRembTest, CandidateReceiveRtpModuleUsedForRemb) {
rtc::ScopedFakeClock clock;
PacketRouter packet_router;
NiceMock<MockRtpRtcpWithRembTracking> module;
constexpr bool remb_candidate = true;
packet_router.AddReceiveRtpModule(&module, remb_candidate);
EXPECT_TRUE(module.REMB());
constexpr uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
EXPECT_CALL(module, SetREMBData(bitrate_estimate, ssrcs)).Times(1);
clock.AdvanceTime(rtc::TimeDelta::FromMilliseconds(1000));
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
// Test tear-down
packet_router.RemoveReceiveRtpModule(&module);
}
TEST(PacketRouterRembTest,
SendCandidatePreferredOverReceiveCandidate_SendModuleAddedFirst) {
rtc::ScopedFakeClock clock;
PacketRouter packet_router;
NiceMock<MockRtpRtcpWithRembTracking> send_module;
NiceMock<MockRtpRtcpWithRembTracking> receive_module;
constexpr bool remb_candidate = true;
// Send module added - activated.
packet_router.AddSendRtpModule(&send_module, remb_candidate);
ASSERT_TRUE(send_module.REMB());
// Receive module added - the send module remains the active one.
packet_router.AddReceiveRtpModule(&receive_module, remb_candidate);
EXPECT_TRUE(send_module.REMB());
EXPECT_FALSE(receive_module.REMB());
constexpr uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
EXPECT_CALL(send_module, SetREMBData(bitrate_estimate, ssrcs)).Times(1);
EXPECT_CALL(receive_module, SetREMBData(_, _)).Times(0);
clock.AdvanceTime(rtc::TimeDelta::FromMilliseconds(1000));
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
// Test tear-down
packet_router.RemoveReceiveRtpModule(&receive_module);
packet_router.RemoveSendRtpModule(&send_module);
}
TEST(PacketRouterRembTest,
SendCandidatePreferredOverReceiveCandidate_ReceiveModuleAddedFirst) {
rtc::ScopedFakeClock clock;
PacketRouter packet_router;
NiceMock<MockRtpRtcpWithRembTracking> send_module;
NiceMock<MockRtpRtcpWithRembTracking> receive_module;
constexpr bool remb_candidate = true;
// Receive module added - activated.
packet_router.AddReceiveRtpModule(&receive_module, remb_candidate);
ASSERT_TRUE(receive_module.REMB());
// Send module added - replaces receive module as active.
packet_router.AddSendRtpModule(&send_module, remb_candidate);
EXPECT_FALSE(receive_module.REMB());
EXPECT_TRUE(send_module.REMB());
constexpr uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
EXPECT_CALL(send_module, SetREMBData(bitrate_estimate, ssrcs)).Times(1);
EXPECT_CALL(receive_module, SetREMBData(_, _)).Times(0);
clock.AdvanceTime(rtc::TimeDelta::FromMilliseconds(1000));
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
// Test tear-down
packet_router.RemoveReceiveRtpModule(&receive_module);
packet_router.RemoveSendRtpModule(&send_module);
}
TEST(PacketRouterRembTest, ReceiveModuleTakesOverWhenLastSendModuleRemoved) {
rtc::ScopedFakeClock clock;
PacketRouter packet_router;
NiceMock<MockRtpRtcpWithRembTracking> send_module;
NiceMock<MockRtpRtcpWithRembTracking> receive_module;
constexpr bool remb_candidate = true;
// Send module active, receive module inactive.
packet_router.AddSendRtpModule(&send_module, remb_candidate);
packet_router.AddReceiveRtpModule(&receive_module, remb_candidate);
ASSERT_TRUE(send_module.REMB());
ASSERT_FALSE(receive_module.REMB());
// Send module removed - receive module becomes active.
packet_router.RemoveSendRtpModule(&send_module);
EXPECT_FALSE(send_module.REMB());
EXPECT_TRUE(receive_module.REMB());
constexpr uint32_t bitrate_estimate = 456;
const std::vector<uint32_t> ssrcs = {1234};
EXPECT_CALL(send_module, SetREMBData(_, _)).Times(0);
EXPECT_CALL(receive_module, SetREMBData(bitrate_estimate, ssrcs)).Times(1);
clock.AdvanceTime(rtc::TimeDelta::FromMilliseconds(1000));
packet_router.OnReceiveBitrateChanged(ssrcs, bitrate_estimate);
// Test tear-down
packet_router.RemoveReceiveRtpModule(&receive_module);
}
} // namespace webrtc

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@ -113,7 +113,8 @@ RtpVideoStreamReceiver::RtpVideoStreamReceiver(
keyframe_request_sender_(keyframe_request_sender),
timing_(timing),
has_received_frame_(false) {
packet_router_->AddReceiveRtpModule(rtp_rtcp_.get());
constexpr bool remb_candidate = true;
packet_router_->AddReceiveRtpModule(rtp_rtcp_.get(), remb_candidate);
rtp_receive_statistics_->RegisterRtpStatisticsCallback(receive_stats_proxy);
rtp_receive_statistics_->RegisterRtcpStatisticsCallback(receive_stats_proxy);

View File

@ -846,8 +846,10 @@ VideoSendStreamImpl::VideoSendStreamImpl(
// We add the highest spatial layer first to ensure it'll be prioritized
// when sending padding, with the hope that the packet rate will be smaller,
// and that it's more important to protect than the lower layers.
for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_)
transport->packet_router()->AddSendRtpModule(rtp_rtcp);
for (RtpRtcp* rtp_rtcp : rtp_rtcp_modules_) {
constexpr bool remb_candidate = true;
transport->packet_router()->AddSendRtpModule(rtp_rtcp, remb_candidate);
}
for (size_t i = 0; i < config_->rtp.extensions.size(); ++i) {
const std::string& extension = config_->rtp.extensions[i].uri;

View File

@ -2508,14 +2508,16 @@ void Channel::RegisterSenderCongestionControlObjects(
seq_num_allocator_proxy_->SetSequenceNumberAllocator(packet_router);
rtp_packet_sender_proxy_->SetPacketSender(rtp_packet_sender);
_rtpRtcpModule->SetStorePacketsStatus(true, 600);
packet_router->AddSendRtpModule(_rtpRtcpModule.get());
constexpr bool remb_candidate = false;
packet_router->AddSendRtpModule(_rtpRtcpModule.get(), remb_candidate);
packet_router_ = packet_router;
}
void Channel::RegisterReceiverCongestionControlObjects(
PacketRouter* packet_router) {
RTC_DCHECK(packet_router && !packet_router_);
packet_router->AddReceiveRtpModule(_rtpRtcpModule.get());
constexpr bool remb_candidate = false;
packet_router->AddReceiveRtpModule(_rtpRtcpModule.get(), remb_candidate);
packet_router_ = packet_router;
}