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| 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 | |
| 12 // This file includes unit tests for ViERemb. | |
| 13 | |
| 14 #include <vector> | |
| 15 | |
| 16 #include "testing/gmock/include/gmock/gmock.h" | |
| 17 #include "testing/gtest/include/gtest/gtest.h" | |
| 18 #include "webrtc/base/scoped_ptr.h" | |
| 19 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp.h" | |
| 20 #include "webrtc/modules/rtp_rtcp/mocks/mock_rtp_rtcp.h" | |
| 21 #include "webrtc/modules/utility/include/mock/mock_process_thread.h" | |
| 22 #include "webrtc/system_wrappers/include/tick_util.h" | |
| 23 #include "webrtc/video_engine/vie_remb.h" | |
| 24 | |
| 25 using ::testing::_; | |
| 26 using ::testing::AnyNumber; | |
| 27 using ::testing::NiceMock; | |
| 28 using ::testing::Return; | |
| 29 | |
| 30 namespace webrtc { | |
| 31 | |
| 32 class ViERembTest : public ::testing::Test { | |
| 33 public: | |
| 34 ViERembTest() : fake_clock_(12345) {} | |
| 35 | |
| 36 protected: | |
| 37 virtual void SetUp() { | |
| 38 process_thread_.reset(new NiceMock<MockProcessThread>); | |
| 39 vie_remb_.reset(new VieRemb(&fake_clock_)); | |
| 40 } | |
| 41 SimulatedClock fake_clock_; | |
| 42 rtc::scoped_ptr<MockProcessThread> process_thread_; | |
| 43 rtc::scoped_ptr<VieRemb> vie_remb_; | |
| 44 }; | |
| 45 | |
| 46 TEST_F(ViERembTest, OneModuleTestForSendingRemb) { | |
| 47 MockRtpRtcp rtp; | |
| 48 vie_remb_->AddReceiveChannel(&rtp); | |
| 49 vie_remb_->AddRembSender(&rtp); | |
| 50 | |
| 51 const unsigned int bitrate_estimate = 456; | |
| 52 unsigned int ssrc = 1234; | |
| 53 std::vector<unsigned int> ssrcs(&ssrc, &ssrc + 1); | |
| 54 | |
| 55 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 56 | |
| 57 fake_clock_.AdvanceTimeMilliseconds(1000); | |
| 58 EXPECT_CALL(rtp, SetREMBData(bitrate_estimate, ssrcs)) | |
| 59 .Times(1); | |
| 60 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 61 | |
| 62 // Lower bitrate to send another REMB packet. | |
| 63 EXPECT_CALL(rtp, SetREMBData(bitrate_estimate - 100, ssrcs)) | |
| 64 .Times(1); | |
| 65 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate - 100); | |
| 66 | |
| 67 vie_remb_->RemoveReceiveChannel(&rtp); | |
| 68 vie_remb_->RemoveRembSender(&rtp); | |
| 69 } | |
| 70 | |
| 71 TEST_F(ViERembTest, LowerEstimateToSendRemb) { | |
| 72 MockRtpRtcp rtp; | |
| 73 vie_remb_->AddReceiveChannel(&rtp); | |
| 74 vie_remb_->AddRembSender(&rtp); | |
| 75 | |
| 76 unsigned int bitrate_estimate = 456; | |
| 77 unsigned int ssrc = 1234; | |
| 78 std::vector<unsigned int> ssrcs(&ssrc, &ssrc + 1); | |
| 79 | |
| 80 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 81 // Call OnReceiveBitrateChanged twice to get a first estimate. | |
| 82 fake_clock_.AdvanceTimeMilliseconds(1000); | |
| 83 EXPECT_CALL(rtp, SetREMBData(bitrate_estimate, ssrcs)) | |
| 84 .Times(1); | |
| 85 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 86 | |
| 87 // Lower the estimate with more than 3% to trigger a call to SetREMBData right | |
| 88 // away. | |
| 89 bitrate_estimate = bitrate_estimate - 100; | |
| 90 EXPECT_CALL(rtp, SetREMBData(bitrate_estimate, ssrcs)) | |
| 91 .Times(1); | |
| 92 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 93 } | |
| 94 | |
| 95 TEST_F(ViERembTest, VerifyIncreasingAndDecreasing) { | |
| 96 MockRtpRtcp rtp_0; | |
| 97 MockRtpRtcp rtp_1; | |
| 98 vie_remb_->AddReceiveChannel(&rtp_0); | |
| 99 vie_remb_->AddRembSender(&rtp_0); | |
| 100 vie_remb_->AddReceiveChannel(&rtp_1); | |
| 101 | |
| 102 unsigned int bitrate_estimate[] = { 456, 789 }; | |
| 103 unsigned int ssrc[] = { 1234, 5678 }; | |
| 104 std::vector<unsigned int> ssrcs(ssrc, ssrc + sizeof(ssrc) / sizeof(ssrc[0])); | |
| 105 | |
| 106 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate[0]); | |
| 107 | |
| 108 // Call OnReceiveBitrateChanged twice to get a first estimate. | |
| 109 EXPECT_CALL(rtp_0, SetREMBData(bitrate_estimate[0], ssrcs)) | |
| 110 .Times(1); | |
| 111 fake_clock_.AdvanceTimeMilliseconds(1000); | |
| 112 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate[0]); | |
| 113 | |
| 114 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate[1] + 100); | |
| 115 | |
| 116 // Lower the estimate to trigger a callback. | |
| 117 EXPECT_CALL(rtp_0, SetREMBData(bitrate_estimate[1], ssrcs)) | |
| 118 .Times(1); | |
| 119 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate[1]); | |
| 120 | |
| 121 vie_remb_->RemoveReceiveChannel(&rtp_0); | |
| 122 vie_remb_->RemoveRembSender(&rtp_0); | |
| 123 vie_remb_->RemoveReceiveChannel(&rtp_1); | |
| 124 } | |
| 125 | |
| 126 TEST_F(ViERembTest, NoRembForIncreasedBitrate) { | |
| 127 MockRtpRtcp rtp_0; | |
| 128 MockRtpRtcp rtp_1; | |
| 129 vie_remb_->AddReceiveChannel(&rtp_0); | |
| 130 vie_remb_->AddRembSender(&rtp_0); | |
| 131 vie_remb_->AddReceiveChannel(&rtp_1); | |
| 132 | |
| 133 unsigned int bitrate_estimate = 456; | |
| 134 unsigned int ssrc[] = { 1234, 5678 }; | |
| 135 std::vector<unsigned int> ssrcs(ssrc, ssrc + sizeof(ssrc) / sizeof(ssrc[0])); | |
| 136 | |
| 137 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 138 // Call OnReceiveBitrateChanged twice to get a first estimate. | |
| 139 fake_clock_.AdvanceTimeMilliseconds(1000); | |
| 140 EXPECT_CALL(rtp_0, SetREMBData(bitrate_estimate, ssrcs)) | |
| 141 .Times(1); | |
| 142 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 143 | |
| 144 // Increased estimate shouldn't trigger a callback right away. | |
| 145 EXPECT_CALL(rtp_0, SetREMBData(_, _)) | |
| 146 .Times(0); | |
| 147 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate + 1); | |
| 148 | |
| 149 // Decreasing the estimate less than 3% shouldn't trigger a new callback. | |
| 150 EXPECT_CALL(rtp_0, SetREMBData(_, _)) | |
| 151 .Times(0); | |
| 152 int lower_estimate = bitrate_estimate * 98 / 100; | |
| 153 vie_remb_->OnReceiveBitrateChanged(ssrcs, lower_estimate); | |
| 154 | |
| 155 vie_remb_->RemoveReceiveChannel(&rtp_1); | |
| 156 vie_remb_->RemoveReceiveChannel(&rtp_0); | |
| 157 vie_remb_->RemoveRembSender(&rtp_0); | |
| 158 } | |
| 159 | |
| 160 TEST_F(ViERembTest, ChangeSendRtpModule) { | |
| 161 MockRtpRtcp rtp_0; | |
| 162 MockRtpRtcp rtp_1; | |
| 163 vie_remb_->AddReceiveChannel(&rtp_0); | |
| 164 vie_remb_->AddRembSender(&rtp_0); | |
| 165 vie_remb_->AddReceiveChannel(&rtp_1); | |
| 166 | |
| 167 unsigned int bitrate_estimate = 456; | |
| 168 unsigned int ssrc[] = { 1234, 5678 }; | |
| 169 std::vector<unsigned int> ssrcs(ssrc, ssrc + sizeof(ssrc) / sizeof(ssrc[0])); | |
| 170 | |
| 171 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 172 // Call OnReceiveBitrateChanged twice to get a first estimate. | |
| 173 fake_clock_.AdvanceTimeMilliseconds(1000); | |
| 174 EXPECT_CALL(rtp_0, SetREMBData(bitrate_estimate, ssrcs)) | |
| 175 .Times(1); | |
| 176 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 177 | |
| 178 // Decrease estimate to trigger a REMB. | |
| 179 bitrate_estimate = bitrate_estimate - 100; | |
| 180 EXPECT_CALL(rtp_0, SetREMBData(bitrate_estimate, ssrcs)) | |
| 181 .Times(1); | |
| 182 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 183 | |
| 184 // Remove the sending module, add it again -> should get remb on the second | |
| 185 // module. | |
| 186 vie_remb_->RemoveRembSender(&rtp_0); | |
| 187 vie_remb_->AddRembSender(&rtp_1); | |
| 188 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 189 | |
| 190 bitrate_estimate = bitrate_estimate - 100; | |
| 191 EXPECT_CALL(rtp_1, SetREMBData(bitrate_estimate, ssrcs)) | |
| 192 .Times(1); | |
| 193 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 194 | |
| 195 vie_remb_->RemoveReceiveChannel(&rtp_0); | |
| 196 vie_remb_->RemoveReceiveChannel(&rtp_1); | |
| 197 } | |
| 198 | |
| 199 TEST_F(ViERembTest, OnlyOneRembForDoubleProcess) { | |
| 200 MockRtpRtcp rtp; | |
| 201 unsigned int bitrate_estimate = 456; | |
| 202 unsigned int ssrc = 1234; | |
| 203 std::vector<unsigned int> ssrcs(&ssrc, &ssrc + 1); | |
| 204 | |
| 205 vie_remb_->AddReceiveChannel(&rtp); | |
| 206 vie_remb_->AddRembSender(&rtp); | |
| 207 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 208 // Call OnReceiveBitrateChanged twice to get a first estimate. | |
| 209 fake_clock_.AdvanceTimeMilliseconds(1000); | |
| 210 EXPECT_CALL(rtp, SetREMBData(_, _)) | |
| 211 .Times(1); | |
| 212 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 213 | |
| 214 // Lower the estimate, should trigger a call to SetREMBData right away. | |
| 215 bitrate_estimate = bitrate_estimate - 100; | |
| 216 EXPECT_CALL(rtp, SetREMBData(bitrate_estimate, ssrcs)) | |
| 217 .Times(1); | |
| 218 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 219 | |
| 220 // Call OnReceiveBitrateChanged again, this should not trigger a new callback. | |
| 221 EXPECT_CALL(rtp, SetREMBData(_, _)) | |
| 222 .Times(0); | |
| 223 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 224 vie_remb_->RemoveReceiveChannel(&rtp); | |
| 225 vie_remb_->RemoveRembSender(&rtp); | |
| 226 } | |
| 227 | |
| 228 // Only register receiving modules and make sure we fallback to trigger a REMB | |
| 229 // packet on this one. | |
| 230 TEST_F(ViERembTest, NoSendingRtpModule) { | |
| 231 MockRtpRtcp rtp; | |
| 232 vie_remb_->AddReceiveChannel(&rtp); | |
| 233 | |
| 234 unsigned int bitrate_estimate = 456; | |
| 235 unsigned int ssrc = 1234; | |
| 236 std::vector<unsigned int> ssrcs(&ssrc, &ssrc + 1); | |
| 237 | |
| 238 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 239 | |
| 240 // Call OnReceiveBitrateChanged twice to get a first estimate. | |
| 241 fake_clock_.AdvanceTimeMilliseconds(1000); | |
| 242 EXPECT_CALL(rtp, SetREMBData(_, _)) | |
| 243 .Times(1); | |
| 244 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 245 | |
| 246 // Lower the estimate to trigger a new packet REMB packet. | |
| 247 bitrate_estimate = bitrate_estimate - 100; | |
| 248 EXPECT_CALL(rtp, SetREMBData(_, _)) | |
| 249 .Times(1); | |
| 250 vie_remb_->OnReceiveBitrateChanged(ssrcs, bitrate_estimate); | |
| 251 } | |
| 252 | |
| 253 } // namespace webrtc | |
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Chromium Code Reviews
Issue 1510183002:
Reland of Merge webrtc/video_engine/ into webrtc/video/ (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master