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1 /* | 1 /* |
2 * Copyright (c) 2015 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2015 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 |
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22 const int64_t kNoTimestamp = -1; | 22 const int64_t kNoTimestamp = -1; |
23 const int64_t kSendTimeHistoryWindowMs = 10000; | 23 const int64_t kSendTimeHistoryWindowMs = 10000; |
24 const int64_t kBaseTimestampScaleFactor = | 24 const int64_t kBaseTimestampScaleFactor = |
25 rtcp::TransportFeedback::kDeltaScaleFactor * (1 << 8); | 25 rtcp::TransportFeedback::kDeltaScaleFactor * (1 << 8); |
26 const int64_t kBaseTimestampRangeSizeUs = kBaseTimestampScaleFactor * (1 << 24); | 26 const int64_t kBaseTimestampRangeSizeUs = kBaseTimestampScaleFactor * (1 << 24); |
27 | 27 |
28 TransportFeedbackAdapter::TransportFeedbackAdapter( | 28 TransportFeedbackAdapter::TransportFeedbackAdapter( |
29 RtcpBandwidthObserver* bandwidth_observer, | 29 RtcpBandwidthObserver* bandwidth_observer, |
30 Clock* clock, | 30 Clock* clock, |
31 ProcessThread* process_thread) | 31 ProcessThread* process_thread) |
32 : send_time_history_(kSendTimeHistoryWindowMs), | 32 : send_time_history_(clock, kSendTimeHistoryWindowMs), |
33 rtcp_bandwidth_observer_(bandwidth_observer), | 33 rtcp_bandwidth_observer_(bandwidth_observer), |
34 process_thread_(process_thread), | 34 process_thread_(process_thread), |
35 clock_(clock), | 35 clock_(clock), |
36 current_offset_ms_(kNoTimestamp), | 36 current_offset_ms_(kNoTimestamp), |
37 last_timestamp_us_(kNoTimestamp) {} | 37 last_timestamp_us_(kNoTimestamp) {} |
38 | 38 |
39 TransportFeedbackAdapter::~TransportFeedbackAdapter() { | 39 TransportFeedbackAdapter::~TransportFeedbackAdapter() { |
40 if (bitrate_estimator_.get()) | 40 if (bitrate_estimator_.get()) |
41 process_thread_->DeRegisterModule(bitrate_estimator_.get()); | 41 process_thread_->DeRegisterModule(bitrate_estimator_.get()); |
42 } | 42 } |
43 | 43 |
44 void TransportFeedbackAdapter::SetBitrateEstimator( | 44 void TransportFeedbackAdapter::SetBitrateEstimator( |
45 RemoteBitrateEstimator* rbe) { | 45 RemoteBitrateEstimator* rbe) { |
46 if (bitrate_estimator_.get() != rbe) { | 46 if (bitrate_estimator_.get() != rbe) { |
47 bitrate_estimator_.reset(rbe); | 47 bitrate_estimator_.reset(rbe); |
48 process_thread_->RegisterModule(rbe); | 48 process_thread_->RegisterModule(rbe); |
49 } | 49 } |
50 } | 50 } |
51 | 51 |
52 void TransportFeedbackAdapter::OnSentPacket(const PacketInfo& info) { | 52 void TransportFeedbackAdapter::AddPacket(uint16_t sequence_number, |
| 53 size_t length, |
| 54 bool was_paced) { |
53 rtc::CritScope cs(&lock_); | 55 rtc::CritScope cs(&lock_); |
54 send_time_history_.AddAndRemoveOld(info); | 56 send_time_history_.AddAndRemoveOld(sequence_number, length, was_paced); |
55 } | 57 } |
56 | 58 |
57 void TransportFeedbackAdapter::UpdateSendTime(uint16_t sequence_number, | 59 void TransportFeedbackAdapter::OnSentPacket(uint16_t sequence_number, |
58 int64_t send_time_ms) { | 60 int64_t send_time_ms) { |
59 rtc::CritScope cs(&lock_); | 61 rtc::CritScope cs(&lock_); |
60 send_time_history_.UpdateSendTime(sequence_number, send_time_ms); | 62 send_time_history_.OnSentPacket(sequence_number, send_time_ms); |
61 } | 63 } |
62 | 64 |
63 void TransportFeedbackAdapter::OnTransportFeedback( | 65 void TransportFeedbackAdapter::OnTransportFeedback( |
64 const rtcp::TransportFeedback& feedback) { | 66 const rtcp::TransportFeedback& feedback) { |
65 int64_t timestamp_us = feedback.GetBaseTimeUs(); | 67 int64_t timestamp_us = feedback.GetBaseTimeUs(); |
66 // Add timestamp deltas to a local time base selected on first packet arrival. | 68 // Add timestamp deltas to a local time base selected on first packet arrival. |
67 // This won't be the true time base, but makes it easier to manually inspect | 69 // This won't be the true time base, but makes it easier to manually inspect |
68 // time stamps. | 70 // time stamps. |
69 if (last_timestamp_us_ == kNoTimestamp) { | 71 if (last_timestamp_us_ == kNoTimestamp) { |
70 current_offset_ms_ = clock_->TimeInMilliseconds(); | 72 current_offset_ms_ = clock_->TimeInMilliseconds(); |
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90 | 92 |
91 { | 93 { |
92 rtc::CritScope cs(&lock_); | 94 rtc::CritScope cs(&lock_); |
93 size_t failed_lookups = 0; | 95 size_t failed_lookups = 0; |
94 int64_t offset_us = 0; | 96 int64_t offset_us = 0; |
95 for (auto symbol : feedback.GetStatusVector()) { | 97 for (auto symbol : feedback.GetStatusVector()) { |
96 if (symbol != rtcp::TransportFeedback::StatusSymbol::kNotReceived) { | 98 if (symbol != rtcp::TransportFeedback::StatusSymbol::kNotReceived) { |
97 RTC_DCHECK(delta_it != delta_vec.end()); | 99 RTC_DCHECK(delta_it != delta_vec.end()); |
98 offset_us += *(delta_it++); | 100 offset_us += *(delta_it++); |
99 int64_t timestamp_ms = current_offset_ms_ + (offset_us / 1000); | 101 int64_t timestamp_ms = current_offset_ms_ + (offset_us / 1000); |
100 PacketInfo info = {timestamp_ms, 0, sequence_number, 0, false}; | 102 PacketInfo info(timestamp_ms, sequence_number); |
101 if (send_time_history_.GetInfo(&info, true)) { | 103 if (send_time_history_.GetInfo(&info, true) && info.send_time_ms >= 0) { |
102 packet_feedback_vector.push_back(info); | 104 packet_feedback_vector.push_back(info); |
103 } else { | 105 } else { |
104 ++failed_lookups; | 106 ++failed_lookups; |
105 } | 107 } |
106 } | 108 } |
107 ++sequence_number; | 109 ++sequence_number; |
108 } | 110 } |
109 RTC_DCHECK(delta_it == delta_vec.end()); | 111 RTC_DCHECK(delta_it == delta_vec.end()); |
110 if (failed_lookups > 0) { | 112 if (failed_lookups > 0) { |
111 LOG(LS_WARNING) << "Failed to lookup send time for " << failed_lookups | 113 LOG(LS_WARNING) << "Failed to lookup send time for " << failed_lookups |
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124 rtcp_bandwidth_observer_->OnReceivedEstimatedBitrate(bitrate); | 126 rtcp_bandwidth_observer_->OnReceivedEstimatedBitrate(bitrate); |
125 } | 127 } |
126 | 128 |
127 void TransportFeedbackAdapter::OnRttUpdate(int64_t avg_rtt_ms, | 129 void TransportFeedbackAdapter::OnRttUpdate(int64_t avg_rtt_ms, |
128 int64_t max_rtt_ms) { | 130 int64_t max_rtt_ms) { |
129 RTC_DCHECK(bitrate_estimator_.get() != nullptr); | 131 RTC_DCHECK(bitrate_estimator_.get() != nullptr); |
130 bitrate_estimator_->OnRttUpdate(avg_rtt_ms, max_rtt_ms); | 132 bitrate_estimator_->OnRttUpdate(avg_rtt_ms, max_rtt_ms); |
131 } | 133 } |
132 | 134 |
133 } // namespace webrtc | 135 } // namespace webrtc |
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