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| 1 /* | 1 /* |
| 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2012 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 "webrtc/video/call_stats.h" | 11 #include "webrtc/video/call_stats.h" |
| 12 | 12 |
| 13 #include <assert.h> | 13 #include <assert.h> |
| 14 | 14 |
| 15 #include <algorithm> | 15 #include <algorithm> |
| 16 | 16 |
| 17 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" | 17 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" |
| 18 #include "webrtc/system_wrappers/include/critical_section_wrapper.h" | |
| 19 #include "webrtc/system_wrappers/include/tick_util.h" | 18 #include "webrtc/system_wrappers/include/tick_util.h" |
| 20 | 19 |
| 21 namespace webrtc { | 20 namespace webrtc { |
| 22 namespace { | 21 namespace { |
| 23 // Time interval for updating the observers. | 22 // Time interval for updating the observers. |
| 24 const int64_t kUpdateIntervalMs = 1000; | 23 const int64_t kUpdateIntervalMs = 1000; |
| 25 // Weight factor to apply to the average rtt. | 24 // Weight factor to apply to the average rtt. |
| 26 const float kWeightFactor = 0.3f; | 25 const float kWeightFactor = 0.3f; |
| 27 | 26 |
| 28 void RemoveOldReports(int64_t now, std::list<CallStats::RttTime>* reports) { | 27 void RemoveOldReports(int64_t now, std::list<CallStats::RttTime>* reports) { |
| (...skipping 57 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 86 } | 85 } |
| 87 | 86 |
| 88 private: | 87 private: |
| 89 CallStats* owner_; | 88 CallStats* owner_; |
| 90 | 89 |
| 91 RTC_DISALLOW_COPY_AND_ASSIGN(RtcpObserver); | 90 RTC_DISALLOW_COPY_AND_ASSIGN(RtcpObserver); |
| 92 }; | 91 }; |
| 93 | 92 |
| 94 CallStats::CallStats(Clock* clock) | 93 CallStats::CallStats(Clock* clock) |
| 95 : clock_(clock), | 94 : clock_(clock), |
| 96 crit_(CriticalSectionWrapper::CreateCriticalSection()), | |
| 97 rtcp_rtt_stats_(new RtcpObserver(this)), | 95 rtcp_rtt_stats_(new RtcpObserver(this)), |
| 98 last_process_time_(clock_->TimeInMilliseconds()), | 96 last_process_time_(clock_->TimeInMilliseconds()), |
| 99 max_rtt_ms_(0), | 97 max_rtt_ms_(0), |
| 100 avg_rtt_ms_(0) {} | 98 avg_rtt_ms_(0) {} |
| 101 | 99 |
| 102 CallStats::~CallStats() { | 100 CallStats::~CallStats() { |
| 103 assert(observers_.empty()); | 101 assert(observers_.empty()); |
| 104 } | 102 } |
| 105 | 103 |
| 106 int64_t CallStats::TimeUntilNextProcess() { | 104 int64_t CallStats::TimeUntilNextProcess() { |
| 107 return last_process_time_ + kUpdateIntervalMs - clock_->TimeInMilliseconds(); | 105 return last_process_time_ + kUpdateIntervalMs - clock_->TimeInMilliseconds(); |
| 108 } | 106 } |
| 109 | 107 |
| 110 int32_t CallStats::Process() { | 108 int32_t CallStats::Process() { |
| 111 CriticalSectionScoped cs(crit_.get()); | 109 rtc::CritScope cs(&crit_); |
| 112 int64_t now = clock_->TimeInMilliseconds(); | 110 int64_t now = clock_->TimeInMilliseconds(); |
| 113 if (now < last_process_time_ + kUpdateIntervalMs) | 111 if (now < last_process_time_ + kUpdateIntervalMs) |
| 114 return 0; | 112 return 0; |
| 115 | 113 |
| 116 last_process_time_ = now; | 114 last_process_time_ = now; |
| 117 | 115 |
| 118 RemoveOldReports(now, &reports_); | 116 RemoveOldReports(now, &reports_); |
| 119 max_rtt_ms_ = GetMaxRttMs(&reports_); | 117 max_rtt_ms_ = GetMaxRttMs(&reports_); |
| 120 UpdateAvgRttMs(&reports_, &avg_rtt_ms_); | 118 UpdateAvgRttMs(&reports_, &avg_rtt_ms_); |
| 121 | 119 |
| 122 // If there is a valid rtt, update all observers with the max rtt. | 120 // If there is a valid rtt, update all observers with the max rtt. |
| 123 // TODO(asapersson): Consider changing this to report the average rtt. | 121 // TODO(asapersson): Consider changing this to report the average rtt. |
| 124 if (max_rtt_ms_ > 0) { | 122 if (max_rtt_ms_ > 0) { |
| 125 for (std::list<CallStatsObserver*>::iterator it = observers_.begin(); | 123 for (std::list<CallStatsObserver*>::iterator it = observers_.begin(); |
| 126 it != observers_.end(); ++it) { | 124 it != observers_.end(); ++it) { |
| 127 (*it)->OnRttUpdate(avg_rtt_ms_, max_rtt_ms_); | 125 (*it)->OnRttUpdate(avg_rtt_ms_, max_rtt_ms_); |
| 128 } | 126 } |
| 129 } | 127 } |
| 130 return 0; | 128 return 0; |
| 131 } | 129 } |
| 132 | 130 |
| 133 int64_t CallStats::avg_rtt_ms() const { | 131 int64_t CallStats::avg_rtt_ms() const { |
| 134 CriticalSectionScoped cs(crit_.get()); | 132 rtc::CritScope cs(&crit_); |
| 135 return avg_rtt_ms_; | 133 return avg_rtt_ms_; |
| 136 } | 134 } |
| 137 | 135 |
| 138 RtcpRttStats* CallStats::rtcp_rtt_stats() const { | 136 RtcpRttStats* CallStats::rtcp_rtt_stats() const { |
| 139 return rtcp_rtt_stats_.get(); | 137 return rtcp_rtt_stats_.get(); |
| 140 } | 138 } |
| 141 | 139 |
| 142 void CallStats::RegisterStatsObserver(CallStatsObserver* observer) { | 140 void CallStats::RegisterStatsObserver(CallStatsObserver* observer) { |
| 143 CriticalSectionScoped cs(crit_.get()); | 141 rtc::CritScope cs(&crit_); |
| 144 for (std::list<CallStatsObserver*>::iterator it = observers_.begin(); | 142 for (std::list<CallStatsObserver*>::iterator it = observers_.begin(); |
| 145 it != observers_.end(); ++it) { | 143 it != observers_.end(); ++it) { |
| 146 if (*it == observer) | 144 if (*it == observer) |
| 147 return; | 145 return; |
| 148 } | 146 } |
| 149 observers_.push_back(observer); | 147 observers_.push_back(observer); |
| 150 } | 148 } |
| 151 | 149 |
| 152 void CallStats::DeregisterStatsObserver(CallStatsObserver* observer) { | 150 void CallStats::DeregisterStatsObserver(CallStatsObserver* observer) { |
| 153 CriticalSectionScoped cs(crit_.get()); | 151 rtc::CritScope cs(&crit_); |
| 154 for (std::list<CallStatsObserver*>::iterator it = observers_.begin(); | 152 for (std::list<CallStatsObserver*>::iterator it = observers_.begin(); |
| 155 it != observers_.end(); ++it) { | 153 it != observers_.end(); ++it) { |
| 156 if (*it == observer) { | 154 if (*it == observer) { |
| 157 observers_.erase(it); | 155 observers_.erase(it); |
| 158 return; | 156 return; |
| 159 } | 157 } |
| 160 } | 158 } |
| 161 } | 159 } |
| 162 | 160 |
| 163 void CallStats::OnRttUpdate(int64_t rtt) { | 161 void CallStats::OnRttUpdate(int64_t rtt) { |
| 164 CriticalSectionScoped cs(crit_.get()); | 162 rtc::CritScope cs(&crit_); |
| 165 reports_.push_back(RttTime(rtt, clock_->TimeInMilliseconds())); | 163 reports_.push_back(RttTime(rtt, clock_->TimeInMilliseconds())); |
| 166 } | 164 } |
| 167 | 165 |
| 168 } // namespace webrtc | 166 } // namespace webrtc |
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