168f23faa5
This required rewriting the send-side delay stats api to be callback based, as otherwise the SuspendBelowMinBitrate test started flaking much more frequently since it had lock order inversion problems. R=pbos@webrtc.org, tommi@webrtc.org Review URL: https://webrtc-codereview.appspot.com/21869005 git-svn-id: http://webrtc.googlecode.com/svn/trunk@6664 4adac7df-926f-26a2-2b94-8c16560cd09d
547 lines
21 KiB
C++
547 lines
21 KiB
C++
/*
|
|
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#include "testing/gmock/include/gmock/gmock.h"
|
|
#include "testing/gtest/include/gtest/gtest.h"
|
|
|
|
#include "webrtc/modules/pacing/include/paced_sender.h"
|
|
#include "webrtc/system_wrappers/interface/clock.h"
|
|
|
|
using testing::_;
|
|
using testing::Return;
|
|
|
|
namespace webrtc {
|
|
namespace test {
|
|
|
|
static const int kTargetBitrate = 800;
|
|
static const float kPaceMultiplier = 1.5f;
|
|
|
|
class MockPacedSenderCallback : public PacedSender::Callback {
|
|
public:
|
|
MOCK_METHOD4(TimeToSendPacket,
|
|
bool(uint32_t ssrc, uint16_t sequence_number, int64_t capture_time_ms,
|
|
bool retransmission));
|
|
MOCK_METHOD1(TimeToSendPadding,
|
|
int(int bytes));
|
|
};
|
|
|
|
class PacedSenderPadding : public PacedSender::Callback {
|
|
public:
|
|
PacedSenderPadding() : padding_sent_(0) {}
|
|
|
|
bool TimeToSendPacket(uint32_t ssrc, uint16_t sequence_number,
|
|
int64_t capture_time_ms, bool retransmission) {
|
|
return true;
|
|
}
|
|
|
|
int TimeToSendPadding(int bytes) {
|
|
const int kPaddingPacketSize = 224;
|
|
int num_packets = (bytes + kPaddingPacketSize - 1) / kPaddingPacketSize;
|
|
padding_sent_ += kPaddingPacketSize * num_packets;
|
|
return kPaddingPacketSize * num_packets;
|
|
}
|
|
|
|
int padding_sent() { return padding_sent_; }
|
|
|
|
private:
|
|
int padding_sent_;
|
|
};
|
|
|
|
class PacedSenderTest : public ::testing::Test {
|
|
protected:
|
|
PacedSenderTest() : clock_(123456) {
|
|
srand(0);
|
|
// Need to initialize PacedSender after we initialize clock.
|
|
send_bucket_.reset(
|
|
new PacedSender(
|
|
&clock_, &callback_, kPaceMultiplier * kTargetBitrate, 0));
|
|
}
|
|
|
|
void SendAndExpectPacket(PacedSender::Priority priority,
|
|
uint32_t ssrc, uint16_t sequence_number,
|
|
int64_t capture_time_ms, int size,
|
|
bool retransmission) {
|
|
EXPECT_FALSE(send_bucket_->SendPacket(priority, ssrc,
|
|
sequence_number, capture_time_ms, size, retransmission));
|
|
EXPECT_CALL(callback_, TimeToSendPacket(
|
|
ssrc, sequence_number, capture_time_ms, false))
|
|
.Times(1)
|
|
.WillRepeatedly(Return(true));
|
|
}
|
|
|
|
SimulatedClock clock_;
|
|
MockPacedSenderCallback callback_;
|
|
scoped_ptr<PacedSender> send_bucket_;
|
|
};
|
|
|
|
TEST_F(PacedSenderTest, QueuePacket) {
|
|
uint32_t ssrc = 12345;
|
|
uint16_t sequence_number = 1234;
|
|
// Due to the multiplicative factor we can send 3 packets not 2 packets.
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
int64_t queued_packet_timestamp = clock_.TimeInMilliseconds();
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
|
|
sequence_number, queued_packet_timestamp, 250, false));
|
|
send_bucket_->Process();
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
|
|
clock_.AdvanceTimeMilliseconds(4);
|
|
EXPECT_EQ(1, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(1);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_CALL(callback_, TimeToSendPacket(
|
|
ssrc, sequence_number++, queued_packet_timestamp, false))
|
|
.Times(1)
|
|
.WillRepeatedly(Return(true));
|
|
send_bucket_->Process();
|
|
sequence_number++;
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
|
|
sequence_number++, clock_.TimeInMilliseconds(), 250, false));
|
|
send_bucket_->Process();
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, PaceQueuedPackets) {
|
|
uint32_t ssrc = 12345;
|
|
uint16_t sequence_number = 1234;
|
|
|
|
// Due to the multiplicative factor we can send 3 packets not 2 packets.
|
|
for (int i = 0; i < 3; ++i) {
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
}
|
|
for (int j = 0; j < 30; ++j) {
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
|
|
sequence_number++, clock_.TimeInMilliseconds(), 250, false));
|
|
}
|
|
send_bucket_->Process();
|
|
EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
|
|
for (int k = 0; k < 10; ++k) {
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_CALL(callback_,
|
|
TimeToSendPacket(ssrc, _, _, false))
|
|
.Times(3)
|
|
.WillRepeatedly(Return(true));
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
}
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
|
|
sequence_number, clock_.TimeInMilliseconds(), 250, false));
|
|
send_bucket_->Process();
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, PaceQueuedPacketsWithDuplicates) {
|
|
uint32_t ssrc = 12345;
|
|
uint16_t sequence_number = 1234;
|
|
uint16_t queued_sequence_number;
|
|
|
|
// Due to the multiplicative factor we can send 3 packets not 2 packets.
|
|
for (int i = 0; i < 3; ++i) {
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
}
|
|
queued_sequence_number = sequence_number;
|
|
|
|
for (int j = 0; j < 30; ++j) {
|
|
// Send in duplicate packets.
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
|
|
sequence_number, clock_.TimeInMilliseconds(), 250, false));
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
|
|
sequence_number++, clock_.TimeInMilliseconds(), 250, false));
|
|
}
|
|
EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
|
|
send_bucket_->Process();
|
|
for (int k = 0; k < 10; ++k) {
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
|
|
for (int i = 0; i < 3; ++i) {
|
|
EXPECT_CALL(callback_, TimeToSendPacket(ssrc, queued_sequence_number++,
|
|
_,
|
|
false))
|
|
.Times(1)
|
|
.WillRepeatedly(Return(true));
|
|
}
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
}
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
|
|
sequence_number++, clock_.TimeInMilliseconds(), 250, false));
|
|
send_bucket_->Process();
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, CanQueuePacketsWithSameSequenceNumberOnDifferentSsrcs) {
|
|
uint32_t ssrc = 12345;
|
|
uint16_t sequence_number = 1234;
|
|
|
|
SendAndExpectPacket(PacedSender::kNormalPriority,
|
|
ssrc,
|
|
sequence_number,
|
|
clock_.TimeInMilliseconds(),
|
|
250,
|
|
false);
|
|
|
|
// Expect packet on second ssrc to be queued and sent as well.
|
|
SendAndExpectPacket(PacedSender::kNormalPriority,
|
|
ssrc + 1,
|
|
sequence_number,
|
|
clock_.TimeInMilliseconds(),
|
|
250,
|
|
false);
|
|
|
|
clock_.AdvanceTimeMilliseconds(1000);
|
|
send_bucket_->Process();
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, Padding) {
|
|
uint32_t ssrc = 12345;
|
|
uint16_t sequence_number = 1234;
|
|
|
|
send_bucket_->UpdateBitrate(kPaceMultiplier * kTargetBitrate, kTargetBitrate);
|
|
// Due to the multiplicative factor we can send 3 packets not 2 packets.
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
clock_.TimeInMilliseconds(), 250, false);
|
|
// No padding is expected since we have sent too much already.
|
|
EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
|
|
// 5 milliseconds later we have enough budget to send some padding.
|
|
EXPECT_CALL(callback_, TimeToSendPadding(250)).Times(1).
|
|
WillOnce(Return(250));
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, NoPaddingWhenDisabled) {
|
|
send_bucket_->SetStatus(false);
|
|
send_bucket_->UpdateBitrate(kPaceMultiplier * kTargetBitrate, kTargetBitrate);
|
|
// No padding is expected since the pacer is disabled.
|
|
EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, VerifyPaddingUpToBitrate) {
|
|
uint32_t ssrc = 12345;
|
|
uint16_t sequence_number = 1234;
|
|
int64_t capture_time_ms = 56789;
|
|
const int kTimeStep = 5;
|
|
const int64_t kBitrateWindow = 100;
|
|
send_bucket_->UpdateBitrate(kPaceMultiplier * kTargetBitrate, kTargetBitrate);
|
|
int64_t start_time = clock_.TimeInMilliseconds();
|
|
while (clock_.TimeInMilliseconds() - start_time < kBitrateWindow) {
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
capture_time_ms, 250, false);
|
|
clock_.AdvanceTimeMilliseconds(kTimeStep);
|
|
EXPECT_CALL(callback_, TimeToSendPadding(250)).Times(1).
|
|
WillOnce(Return(250));
|
|
send_bucket_->Process();
|
|
}
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, VerifyAverageBitrateVaryingMediaPayload) {
|
|
uint32_t ssrc = 12345;
|
|
uint16_t sequence_number = 1234;
|
|
int64_t capture_time_ms = 56789;
|
|
const int kTimeStep = 5;
|
|
const int64_t kBitrateWindow = 10000;
|
|
PacedSenderPadding callback;
|
|
send_bucket_.reset(
|
|
new PacedSender(&clock_, &callback, kPaceMultiplier * kTargetBitrate, 0));
|
|
send_bucket_->UpdateBitrate(kPaceMultiplier * kTargetBitrate, kTargetBitrate);
|
|
int64_t start_time = clock_.TimeInMilliseconds();
|
|
int media_bytes = 0;
|
|
while (clock_.TimeInMilliseconds() - start_time < kBitrateWindow) {
|
|
int media_payload = rand() % 100 + 200; // [200, 300] bytes.
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc,
|
|
sequence_number++, capture_time_ms,
|
|
media_payload, false));
|
|
media_bytes += media_payload;
|
|
clock_.AdvanceTimeMilliseconds(kTimeStep);
|
|
send_bucket_->Process();
|
|
}
|
|
EXPECT_NEAR(kTargetBitrate, 8 * (media_bytes + callback.padding_sent()) /
|
|
kBitrateWindow, 1);
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, Priority) {
|
|
uint32_t ssrc_low_priority = 12345;
|
|
uint32_t ssrc = 12346;
|
|
uint16_t sequence_number = 1234;
|
|
int64_t capture_time_ms = 56789;
|
|
int64_t capture_time_ms_low_priority = 1234567;
|
|
|
|
// Due to the multiplicative factor we can send 3 packets not 2 packets.
|
|
SendAndExpectPacket(PacedSender::kLowPriority, ssrc, sequence_number++,
|
|
capture_time_ms, 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
capture_time_ms, 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
capture_time_ms, 250, false);
|
|
send_bucket_->Process();
|
|
|
|
// Expect normal and low priority to be queued and high to pass through.
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kLowPriority,
|
|
ssrc_low_priority, sequence_number++, capture_time_ms_low_priority, 250,
|
|
false));
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
|
|
ssrc, sequence_number++, capture_time_ms, 250, false));
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
|
|
ssrc, sequence_number++, capture_time_ms, 250, false));
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kHighPriority,
|
|
ssrc, sequence_number++, capture_time_ms, 250, false));
|
|
|
|
// Expect all high and normal priority to be sent out first.
|
|
EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
|
|
EXPECT_CALL(callback_, TimeToSendPacket(ssrc, _, capture_time_ms, false))
|
|
.Times(3)
|
|
.WillRepeatedly(Return(true));
|
|
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
|
|
EXPECT_CALL(callback_, TimeToSendPacket(
|
|
ssrc_low_priority, _, capture_time_ms_low_priority, false))
|
|
.Times(1)
|
|
.WillRepeatedly(Return(true));
|
|
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, Pause) {
|
|
uint32_t ssrc_low_priority = 12345;
|
|
uint32_t ssrc = 12346;
|
|
uint16_t sequence_number = 1234;
|
|
int64_t capture_time_ms = clock_.TimeInMilliseconds();
|
|
|
|
EXPECT_EQ(0, send_bucket_->QueueInMs());
|
|
|
|
// Due to the multiplicative factor we can send 3 packets not 2 packets.
|
|
SendAndExpectPacket(PacedSender::kLowPriority, ssrc, sequence_number++,
|
|
capture_time_ms, 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
capture_time_ms, 250, false);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority, ssrc, sequence_number++,
|
|
capture_time_ms, 250, false);
|
|
send_bucket_->Process();
|
|
|
|
send_bucket_->Pause();
|
|
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
|
|
ssrc, sequence_number++, capture_time_ms, 250, false));
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
|
|
ssrc, sequence_number++, capture_time_ms, 250, false));
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kHighPriority,
|
|
ssrc, sequence_number++, capture_time_ms, 250, false));
|
|
|
|
clock_.AdvanceTimeMilliseconds(10000);
|
|
int64_t second_capture_time_ms = clock_.TimeInMilliseconds();
|
|
|
|
// Expect everything to be queued.
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kLowPriority,
|
|
ssrc_low_priority, sequence_number++, second_capture_time_ms, 250,
|
|
false));
|
|
|
|
EXPECT_EQ(clock_.TimeInMilliseconds() - capture_time_ms,
|
|
send_bucket_->QueueInMs());
|
|
|
|
// Expect no packet to come out while paused.
|
|
EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
|
|
EXPECT_CALL(callback_, TimeToSendPacket(_, _, _, _)).Times(0);
|
|
|
|
for (int i = 0; i < 10; ++i) {
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
}
|
|
// Expect high prio packets to come out first followed by all packets in the
|
|
// way they were added.
|
|
EXPECT_CALL(callback_, TimeToSendPacket(_, _, capture_time_ms, false))
|
|
.Times(3)
|
|
.WillRepeatedly(Return(true));
|
|
send_bucket_->Resume();
|
|
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
|
|
EXPECT_CALL(
|
|
callback_, TimeToSendPacket(_, _, second_capture_time_ms, false))
|
|
.Times(1)
|
|
.WillRepeatedly(Return(true));
|
|
EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess());
|
|
clock_.AdvanceTimeMilliseconds(5);
|
|
EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess());
|
|
EXPECT_EQ(0, send_bucket_->Process());
|
|
EXPECT_EQ(0, send_bucket_->QueueInMs());
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, ResendPacket) {
|
|
uint32_t ssrc = 12346;
|
|
uint16_t sequence_number = 1234;
|
|
int64_t capture_time_ms = clock_.TimeInMilliseconds();
|
|
EXPECT_EQ(0, send_bucket_->QueueInMs());
|
|
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
|
|
ssrc,
|
|
sequence_number,
|
|
capture_time_ms,
|
|
250,
|
|
false));
|
|
clock_.AdvanceTimeMilliseconds(1);
|
|
EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority,
|
|
ssrc,
|
|
sequence_number + 1,
|
|
capture_time_ms + 1,
|
|
250,
|
|
false));
|
|
clock_.AdvanceTimeMilliseconds(9999);
|
|
EXPECT_EQ(clock_.TimeInMilliseconds() - capture_time_ms,
|
|
send_bucket_->QueueInMs());
|
|
// Fails to send first packet so only one call.
|
|
EXPECT_CALL(callback_, TimeToSendPacket(
|
|
ssrc, sequence_number, capture_time_ms, false))
|
|
.Times(1)
|
|
.WillOnce(Return(false));
|
|
clock_.AdvanceTimeMilliseconds(10000);
|
|
send_bucket_->Process();
|
|
|
|
// Queue remains unchanged.
|
|
EXPECT_EQ(clock_.TimeInMilliseconds() - capture_time_ms,
|
|
send_bucket_->QueueInMs());
|
|
|
|
// Fails to send second packet.
|
|
EXPECT_CALL(callback_, TimeToSendPacket(
|
|
ssrc, sequence_number, capture_time_ms, false))
|
|
.Times(1)
|
|
.WillOnce(Return(true));
|
|
EXPECT_CALL(callback_, TimeToSendPacket(
|
|
ssrc, sequence_number + 1, capture_time_ms + 1, false))
|
|
.Times(1)
|
|
.WillOnce(Return(false));
|
|
clock_.AdvanceTimeMilliseconds(10000);
|
|
send_bucket_->Process();
|
|
|
|
// Queue is reduced by 1 packet.
|
|
EXPECT_EQ(clock_.TimeInMilliseconds() - capture_time_ms - 1,
|
|
send_bucket_->QueueInMs());
|
|
|
|
// Send second packet and queue becomes empty.
|
|
EXPECT_CALL(callback_, TimeToSendPacket(
|
|
ssrc, sequence_number + 1, capture_time_ms + 1, false))
|
|
.Times(1)
|
|
.WillOnce(Return(true));
|
|
clock_.AdvanceTimeMilliseconds(10000);
|
|
send_bucket_->Process();
|
|
EXPECT_EQ(0, send_bucket_->QueueInMs());
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, MaxQueueLength) {
|
|
uint32_t ssrc = 12346;
|
|
uint16_t sequence_number = 1234;
|
|
EXPECT_EQ(0, send_bucket_->QueueInMs());
|
|
|
|
send_bucket_->UpdateBitrate(kPaceMultiplier * 30, 0);
|
|
for (int i = 0; i < 30; ++i) {
|
|
SendAndExpectPacket(PacedSender::kNormalPriority,
|
|
ssrc,
|
|
sequence_number++,
|
|
clock_.TimeInMilliseconds(),
|
|
1200,
|
|
false);
|
|
}
|
|
|
|
clock_.AdvanceTimeMilliseconds(2001);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority,
|
|
ssrc,
|
|
sequence_number++,
|
|
clock_.TimeInMilliseconds(),
|
|
1200,
|
|
false);
|
|
EXPECT_EQ(2001, send_bucket_->QueueInMs());
|
|
send_bucket_->Process();
|
|
EXPECT_EQ(0, send_bucket_->QueueInMs());
|
|
clock_.AdvanceTimeMilliseconds(31);
|
|
|
|
send_bucket_->Process();
|
|
}
|
|
|
|
TEST_F(PacedSenderTest, QueueTimeGrowsOverTime) {
|
|
uint32_t ssrc = 12346;
|
|
uint16_t sequence_number = 1234;
|
|
EXPECT_EQ(0, send_bucket_->QueueInMs());
|
|
|
|
send_bucket_->UpdateBitrate(kPaceMultiplier * 30, 0);
|
|
SendAndExpectPacket(PacedSender::kNormalPriority,
|
|
ssrc,
|
|
sequence_number,
|
|
clock_.TimeInMilliseconds(),
|
|
1200,
|
|
false);
|
|
|
|
clock_.AdvanceTimeMilliseconds(500);
|
|
EXPECT_EQ(500, send_bucket_->QueueInMs());
|
|
send_bucket_->Process();
|
|
EXPECT_EQ(0, send_bucket_->QueueInMs());
|
|
}
|
|
} // namespace test
|
|
} // namespace webrtc
|