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1 /* | 1 /* |
2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2017 The WebRTC project authors. All Rights Reserved. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license | 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 | 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 | 6 * tree. An additional intellectual property rights grant can be found |
7 * in the file PATENTS. All contributing project authors may | 7 * in the file PATENTS. All contributing project authors may |
8 * be found in the AUTHORS file in the root of the source tree. | 8 * be found in the AUTHORS file in the root of the source tree. |
9 */ | 9 */ |
10 | 10 |
11 #include <limits> | 11 #include <limits> |
12 #include <memory> | 12 #include <memory> |
13 #include <numeric> | 13 #include <numeric> |
14 #include <vector> | 14 #include <vector> |
15 | 15 |
16 #include "webrtc/base/checks.h" | 16 #include "webrtc/base/checks.h" |
| 17 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" |
17 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/transport_feedback.h" | 18 #include "webrtc/modules/rtp_rtcp/source/rtcp_packet/transport_feedback.h" |
18 #include "webrtc/test/gmock.h" | 19 #include "webrtc/test/gmock.h" |
19 #include "webrtc/test/gtest.h" | 20 #include "webrtc/test/gtest.h" |
20 #include "webrtc/voice_engine/transport_feedback_packet_loss_tracker.h" | 21 #include "webrtc/voice_engine/transport_feedback_packet_loss_tracker.h" |
21 | 22 |
22 namespace webrtc { | 23 namespace webrtc { |
23 | 24 |
24 namespace { | 25 namespace { |
25 | 26 |
26 constexpr int64_t kDefaultSendInterval = 10; | 27 constexpr int64_t kDefaultSendInterval = 10; |
27 constexpr int64_t kDefaultMaxWindowSizeMs = 500 * kDefaultSendInterval; | 28 constexpr int64_t kDefaultMaxWindowSizeMs = 500 * kDefaultSendInterval; |
28 | 29 |
29 class TransportFeedbackPacketLossTrackerTest | 30 class TransportFeedbackPacketLossTrackerTest |
30 : public ::testing::TestWithParam<uint16_t> { | 31 : public ::testing::TestWithParam<uint16_t> { |
31 using TransportFeedback = webrtc::rtcp::TransportFeedback; | |
32 | |
33 public: | 32 public: |
34 TransportFeedbackPacketLossTrackerTest() = default; | 33 TransportFeedbackPacketLossTrackerTest() = default; |
35 virtual ~TransportFeedbackPacketLossTrackerTest() = default; | 34 virtual ~TransportFeedbackPacketLossTrackerTest() = default; |
36 | 35 |
37 protected: | 36 protected: |
38 void SendPackets(TransportFeedbackPacketLossTracker* tracker, | 37 void SendPackets(TransportFeedbackPacketLossTracker* tracker, |
39 const std::vector<uint16_t>& sequence_numbers, | 38 const std::vector<uint16_t>& sequence_numbers, |
40 int64_t send_time_interval_ms, | 39 int64_t send_time_interval_ms, |
41 bool validate_all = true) { | 40 bool validate_all = true) { |
42 RTC_CHECK_GE(send_time_interval_ms, 0); | 41 RTC_CHECK_GE(send_time_interval_ms, 0); |
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68 | 67 |
69 void AdvanceClock(int64_t time_delta_ms) { | 68 void AdvanceClock(int64_t time_delta_ms) { |
70 RTC_CHECK_GT(time_delta_ms, 0); | 69 RTC_CHECK_GT(time_delta_ms, 0); |
71 time_ms_ += time_delta_ms; | 70 time_ms_ += time_delta_ms; |
72 } | 71 } |
73 | 72 |
74 void AddTransportFeedbackAndValidate( | 73 void AddTransportFeedbackAndValidate( |
75 TransportFeedbackPacketLossTracker* tracker, | 74 TransportFeedbackPacketLossTracker* tracker, |
76 uint16_t base_sequence_num, | 75 uint16_t base_sequence_num, |
77 const std::vector<bool>& reception_status_vec) { | 76 const std::vector<bool>& reception_status_vec) { |
78 const int64_t kBaseTimeUs = 1234; // Irrelevant to this test. | 77 // Any positive integer signals reception. kNotReceived signals loss. |
79 TransportFeedback test_feedback; | 78 // Other values are just illegal. |
80 test_feedback.SetBase(base_sequence_num, kBaseTimeUs); | 79 constexpr int64_t kArrivalTimeMs = 1234; |
81 uint16_t sequence_num = base_sequence_num; | 80 |
82 for (bool status : reception_status_vec) { | 81 std::vector<PacketFeedback> packet_feedbacks; |
83 if (status) | 82 uint16_t seq_num = base_sequence_num; |
84 test_feedback.AddReceivedPacket(sequence_num, kBaseTimeUs); | 83 for (bool received : reception_status_vec) { |
85 ++sequence_num; | 84 packet_feedbacks.emplace_back(PacketFeedback( |
| 85 received ? kArrivalTimeMs : PacketFeedback::kNotReceived, seq_num)); |
| 86 ++seq_num; |
86 } | 87 } |
87 | 88 |
88 // TransportFeedback imposes some limitations on what constitutes a legal | 89 tracker->OnNewTransportFeedbacks(packet_feedbacks); |
89 // status vector. For instance, the vector cannot terminate in a lost | |
90 // packet. Make sure all limitations are abided by. | |
91 RTC_CHECK_EQ(base_sequence_num, test_feedback.GetBaseSequence()); | |
92 const auto& vec = test_feedback.GetStatusVector(); | |
93 RTC_CHECK_EQ(reception_status_vec.size(), vec.size()); | |
94 for (size_t i = 0; i < reception_status_vec.size(); i++) { | |
95 RTC_CHECK_EQ(reception_status_vec[i], | |
96 vec[i] != TransportFeedback::StatusSymbol::kNotReceived); | |
97 } | |
98 | |
99 tracker->OnReceivedTransportFeedback(test_feedback); | |
100 tracker->Validate(); | 90 tracker->Validate(); |
101 } | 91 } |
102 | 92 |
103 // Checks that validty is as expected. If valid, checks also that | 93 // Checks that validty is as expected. If valid, checks also that |
104 // value is as expected. | 94 // value is as expected. |
105 void ValidatePacketLossStatistics( | 95 void ValidatePacketLossStatistics( |
106 const TransportFeedbackPacketLossTracker& tracker, | 96 const TransportFeedbackPacketLossTracker& tracker, |
107 rtc::Optional<float> expected_plr, | 97 rtc::Optional<float> expected_plr, |
108 rtc::Optional<float> expected_rplr) { | 98 rtc::Optional<float> expected_rplr) { |
109 // TODO(elad.alon): Comparing the rtc::Optional<float> directly would have | 99 // TODO(elad.alon): Comparing the rtc::Optional<float> directly would have |
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599 | 589 |
600 // All tests are run multiple times with various baseline sequence number, | 590 // All tests are run multiple times with various baseline sequence number, |
601 // to weed out potential bugs with wrap-around handling. | 591 // to weed out potential bugs with wrap-around handling. |
602 constexpr uint16_t kBases[] = {0x0000, 0x3456, 0xc032, 0xfffe}; | 592 constexpr uint16_t kBases[] = {0x0000, 0x3456, 0xc032, 0xfffe}; |
603 | 593 |
604 INSTANTIATE_TEST_CASE_P(_, | 594 INSTANTIATE_TEST_CASE_P(_, |
605 TransportFeedbackPacketLossTrackerTest, | 595 TransportFeedbackPacketLossTrackerTest, |
606 testing::ValuesIn(kBases)); | 596 testing::ValuesIn(kBases)); |
607 | 597 |
608 } // namespace webrtc | 598 } // namespace webrtc |
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