pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license |
| 5 | * that can be found in the LICENSE file in the root of the source |
| 6 | * tree. An additional intellectual property rights grant can be found |
| 7 | * in the file PATENTS. All contributing project authors may |
| 8 | * be found in the AUTHORS file in the root of the source tree. |
| 9 | */ |
| 10 | |
| 11 | #include <gmock/gmock.h> |
| 12 | #include <gtest/gtest.h> |
| 13 | |
| 14 | #include "webrtc/modules/pacing/include/paced_sender.h" |
| 15 | |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 16 | using testing::_; |
pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 17 | |
| 18 | namespace webrtc { |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 19 | namespace test { |
| 20 | |
| 21 | static const int kTargetBitrate = 800; |
pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 22 | |
| 23 | class MockPacedSenderCallback : public PacedSender::Callback { |
| 24 | public: |
| 25 | MOCK_METHOD3(TimeToSendPacket, |
| 26 | void(uint32_t ssrc, uint16_t sequence_number, int64_t capture_time_ms)); |
| 27 | MOCK_METHOD1(TimeToSendPadding, |
| 28 | void(int bytes)); |
| 29 | }; |
| 30 | |
| 31 | class PacedSenderTest : public ::testing::Test { |
| 32 | protected: |
| 33 | PacedSenderTest() { |
| 34 | TickTime::UseFakeClock(123456); |
| 35 | // Need to initialize PacedSender after we initialize clock. |
| 36 | send_bucket_.reset(new PacedSender(&callback_, kTargetBitrate)); |
| 37 | send_bucket_->SetStatus(true); |
| 38 | } |
| 39 | MockPacedSenderCallback callback_; |
| 40 | scoped_ptr<PacedSender> send_bucket_; |
| 41 | }; |
| 42 | |
| 43 | TEST_F(PacedSenderTest, QueuePacket) { |
| 44 | uint32_t ssrc = 12345; |
| 45 | uint16_t sequence_number = 1234; |
| 46 | int64_t capture_time_ms = 56789; |
| 47 | |
| 48 | // Due to the multiplicative factor we can send 3 packets not 2 packets. |
| 49 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 50 | sequence_number++, capture_time_ms, 250)); |
| 51 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 52 | sequence_number++, capture_time_ms, 250)); |
| 53 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 54 | sequence_number++, capture_time_ms, 250)); |
| 55 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 56 | sequence_number, capture_time_ms, 250)); |
| 57 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 58 | EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0); |
pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 59 | EXPECT_CALL(callback_, |
| 60 | TimeToSendPacket(ssrc, sequence_number, capture_time_ms)).Times(0); |
| 61 | TickTime::AdvanceFakeClock(4); |
| 62 | EXPECT_EQ(1, send_bucket_->TimeUntilNextProcess()); |
| 63 | EXPECT_CALL(callback_, |
| 64 | TimeToSendPacket(ssrc, sequence_number, capture_time_ms)).Times(1); |
| 65 | TickTime::AdvanceFakeClock(1); |
| 66 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 67 | EXPECT_EQ(0, send_bucket_->Process()); |
| 68 | sequence_number++; |
| 69 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 70 | sequence_number++, capture_time_ms, 250)); |
| 71 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 72 | sequence_number++, capture_time_ms, 250)); |
| 73 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 74 | sequence_number++, capture_time_ms, 250)); |
| 75 | } |
| 76 | |
| 77 | TEST_F(PacedSenderTest, PaceQueuedPackets) { |
| 78 | uint32_t ssrc = 12345; |
| 79 | uint16_t sequence_number = 1234; |
| 80 | int64_t capture_time_ms = 56789; |
| 81 | |
| 82 | // Due to the multiplicative factor we can send 3 packets not 2 packets. |
| 83 | for (int i = 0; i < 3; ++i) { |
| 84 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 85 | sequence_number++, capture_time_ms, 250)); |
| 86 | } |
| 87 | for (int j = 0; j < 30; ++j) { |
| 88 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 89 | sequence_number++, capture_time_ms, 250)); |
| 90 | } |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 91 | EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0); |
pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 92 | for (int k = 0; k < 10; ++k) { |
| 93 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
| 94 | TickTime::AdvanceFakeClock(5); |
| 95 | EXPECT_CALL(callback_, |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 96 | TimeToSendPacket(ssrc, _, capture_time_ms)).Times(3); |
pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 97 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 98 | EXPECT_EQ(0, send_bucket_->Process()); |
| 99 | } |
| 100 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
| 101 | TickTime::AdvanceFakeClock(5); |
| 102 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 103 | EXPECT_EQ(0, send_bucket_->Process()); |
| 104 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 105 | sequence_number++, capture_time_ms, 250)); |
| 106 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 107 | sequence_number++, capture_time_ms, 250)); |
| 108 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 109 | sequence_number++, capture_time_ms, 250)); |
| 110 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 111 | sequence_number++, capture_time_ms, 250)); |
| 112 | } |
| 113 | |
pwestin@webrtc.org | 52aa019 | 2013-04-25 17:35:56 +0000 | [diff] [blame] | 114 | TEST_F(PacedSenderTest, PaceQueuedPacketsWithDuplicates) { |
| 115 | uint32_t ssrc = 12345; |
| 116 | uint16_t sequence_number = 1234; |
| 117 | int64_t capture_time_ms = 56789; |
| 118 | uint16_t queued_sequence_number; |
| 119 | |
| 120 | // Due to the multiplicative factor we can send 3 packets not 2 packets. |
| 121 | for (int i = 0; i < 3; ++i) { |
| 122 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 123 | sequence_number++, capture_time_ms, 250)); |
| 124 | } |
| 125 | queued_sequence_number = sequence_number; |
| 126 | |
| 127 | for (int j = 0; j < 30; ++j) { |
| 128 | // Send in duplicate packets. |
| 129 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 130 | sequence_number, capture_time_ms, 250)); |
| 131 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 132 | sequence_number++, capture_time_ms, 250)); |
| 133 | } |
| 134 | EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0); |
| 135 | for (int k = 0; k < 10; ++k) { |
| 136 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
| 137 | TickTime::AdvanceFakeClock(5); |
| 138 | |
| 139 | for (int i = 0; i < 3; ++i) { |
| 140 | EXPECT_CALL(callback_, TimeToSendPacket(ssrc, queued_sequence_number++, |
| 141 | capture_time_ms)).Times(1); |
| 142 | } |
| 143 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 144 | EXPECT_EQ(0, send_bucket_->Process()); |
| 145 | } |
| 146 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
| 147 | TickTime::AdvanceFakeClock(5); |
| 148 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 149 | EXPECT_EQ(0, send_bucket_->Process()); |
| 150 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 151 | sequence_number++, capture_time_ms, 250)); |
| 152 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 153 | sequence_number++, capture_time_ms, 250)); |
| 154 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 155 | sequence_number++, capture_time_ms, 250)); |
| 156 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 157 | sequence_number++, capture_time_ms, 250)); |
| 158 | } |
| 159 | |
pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 160 | TEST_F(PacedSenderTest, Padding) { |
| 161 | uint32_t ssrc = 12345; |
| 162 | uint16_t sequence_number = 1234; |
| 163 | int64_t capture_time_ms = 56789; |
| 164 | |
| 165 | // Due to the multiplicative factor we can send 3 packets not 2 packets. |
| 166 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 167 | sequence_number++, capture_time_ms, 250)); |
| 168 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 169 | sequence_number++, capture_time_ms, 250)); |
| 170 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, ssrc, |
| 171 | sequence_number++, capture_time_ms, 250)); |
| 172 | EXPECT_CALL(callback_, TimeToSendPadding(250)).Times(1); |
| 173 | EXPECT_CALL(callback_, |
| 174 | TimeToSendPacket(ssrc, sequence_number, capture_time_ms)).Times(0); |
| 175 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
| 176 | TickTime::AdvanceFakeClock(5); |
| 177 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 178 | EXPECT_EQ(0, send_bucket_->Process()); |
| 179 | |
| 180 | EXPECT_CALL(callback_, TimeToSendPadding(500)).Times(1); |
| 181 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
| 182 | TickTime::AdvanceFakeClock(5); |
| 183 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 184 | EXPECT_EQ(0, send_bucket_->Process()); |
| 185 | } |
| 186 | |
| 187 | TEST_F(PacedSenderTest, Priority) { |
| 188 | uint32_t ssrc_low_priority = 12345; |
| 189 | uint32_t ssrc = 12346; |
| 190 | uint16_t sequence_number = 1234; |
| 191 | int64_t capture_time_ms = 56789; |
| 192 | int64_t capture_time_ms_low_priority = 1234567; |
| 193 | |
| 194 | // Due to the multiplicative factor we can send 3 packets not 2 packets. |
| 195 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kLowPriority, |
| 196 | ssrc_low_priority, sequence_number++, capture_time_ms_low_priority, 250)); |
| 197 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, |
| 198 | ssrc, sequence_number++, capture_time_ms, 250)); |
| 199 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, |
| 200 | ssrc, sequence_number++, capture_time_ms, 250)); |
| 201 | |
| 202 | // Expect normal and low priority to be queued and high to pass through. |
| 203 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kLowPriority, |
| 204 | ssrc_low_priority, sequence_number++, capture_time_ms_low_priority, 250)); |
| 205 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, |
| 206 | ssrc, sequence_number++, capture_time_ms, 250)); |
| 207 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, |
| 208 | ssrc, sequence_number++, capture_time_ms, 250)); |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 209 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kHighPriority, |
pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 210 | ssrc, sequence_number++, capture_time_ms, 250)); |
| 211 | |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 212 | // Expect all high and normal priority to be sent out first. |
| 213 | EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0); |
| 214 | EXPECT_CALL(callback_, TimeToSendPacket(ssrc, _, capture_time_ms)).Times(3); |
pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 215 | |
| 216 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
| 217 | TickTime::AdvanceFakeClock(5); |
| 218 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 219 | EXPECT_EQ(0, send_bucket_->Process()); |
| 220 | |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 221 | EXPECT_CALL(callback_, TimeToSendPacket( |
| 222 | ssrc_low_priority, _, capture_time_ms_low_priority)).Times(1); |
pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 223 | |
| 224 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
| 225 | TickTime::AdvanceFakeClock(5); |
| 226 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 227 | EXPECT_EQ(0, send_bucket_->Process()); |
| 228 | } |
| 229 | |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 230 | TEST_F(PacedSenderTest, Pause) { |
| 231 | uint32_t ssrc_low_priority = 12345; |
| 232 | uint32_t ssrc = 12346; |
| 233 | uint16_t sequence_number = 1234; |
stefan@webrtc.org | bfacda6 | 2013-03-27 16:36:01 +0000 | [diff] [blame] | 234 | int64_t capture_time_ms = TickTime::MillisecondTimestamp(); |
| 235 | TickTime::AdvanceFakeClock(10000); |
| 236 | int64_t second_capture_time_ms = TickTime::MillisecondTimestamp(); |
| 237 | |
| 238 | EXPECT_EQ(0, send_bucket_->QueueInMs()); |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 239 | |
| 240 | // Due to the multiplicative factor we can send 3 packets not 2 packets. |
| 241 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kLowPriority, |
| 242 | ssrc_low_priority, sequence_number++, capture_time_ms, 250)); |
| 243 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, |
| 244 | ssrc, sequence_number++, capture_time_ms, 250)); |
| 245 | EXPECT_TRUE(send_bucket_->SendPacket(PacedSender::kNormalPriority, |
| 246 | ssrc, sequence_number++, capture_time_ms, 250)); |
| 247 | |
| 248 | send_bucket_->Pause(); |
| 249 | |
| 250 | // Expect everything to be queued. |
| 251 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kLowPriority, |
| 252 | ssrc_low_priority, sequence_number++, capture_time_ms, 250)); |
| 253 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, |
| 254 | ssrc, sequence_number++, capture_time_ms, 250)); |
| 255 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kNormalPriority, |
| 256 | ssrc, sequence_number++, second_capture_time_ms, 250)); |
| 257 | EXPECT_FALSE(send_bucket_->SendPacket(PacedSender::kHighPriority, |
| 258 | ssrc, sequence_number++, capture_time_ms, 250)); |
| 259 | |
stefan@webrtc.org | bfacda6 | 2013-03-27 16:36:01 +0000 | [diff] [blame] | 260 | EXPECT_EQ(TickTime::MillisecondTimestamp() - capture_time_ms, |
| 261 | send_bucket_->QueueInMs()); |
| 262 | |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 263 | // Expect no packet to come out while paused. |
| 264 | EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0); |
| 265 | EXPECT_CALL(callback_, TimeToSendPacket(_, _, _)).Times(0); |
| 266 | |
| 267 | for (int i = 0; i < 10; ++i) { |
| 268 | TickTime::AdvanceFakeClock(5); |
| 269 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 270 | EXPECT_EQ(0, send_bucket_->Process()); |
| 271 | } |
| 272 | // Expect high prio packets to come out first followed by all packets in the |
| 273 | // way they were added. |
| 274 | EXPECT_CALL(callback_, TimeToSendPacket(_, _, capture_time_ms)).Times(3); |
| 275 | |
| 276 | send_bucket_->Resume(); |
| 277 | |
| 278 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
| 279 | TickTime::AdvanceFakeClock(5); |
| 280 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 281 | EXPECT_EQ(0, send_bucket_->Process()); |
| 282 | |
| 283 | EXPECT_CALL(callback_, |
| 284 | TimeToSendPacket(_, _, second_capture_time_ms)).Times(1); |
| 285 | |
| 286 | EXPECT_EQ(5, send_bucket_->TimeUntilNextProcess()); |
| 287 | TickTime::AdvanceFakeClock(5); |
| 288 | EXPECT_EQ(0, send_bucket_->TimeUntilNextProcess()); |
| 289 | EXPECT_EQ(0, send_bucket_->Process()); |
stefan@webrtc.org | bfacda6 | 2013-03-27 16:36:01 +0000 | [diff] [blame] | 290 | EXPECT_EQ(0, send_bucket_->QueueInMs()); |
pwestin@webrtc.org | db41856 | 2013-03-22 23:39:29 +0000 | [diff] [blame] | 291 | } |
| 292 | |
| 293 | } // namespace test |
pwestin@webrtc.org | b518017 | 2012-11-09 20:56:23 +0000 | [diff] [blame] | 294 | } // namespace webrtc |