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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 #ifndef WEBRTC_VOICE_ENGINE_TRANSPORT_FEEDBACK_PACKET_LOSS_TRACKER_H_ | 11 #ifndef WEBRTC_VOICE_ENGINE_TRANSPORT_FEEDBACK_PACKET_LOSS_TRACKER_H_ |
| 12 #define WEBRTC_VOICE_ENGINE_TRANSPORT_FEEDBACK_PACKET_LOSS_TRACKER_H_ | 12 #define WEBRTC_VOICE_ENGINE_TRANSPORT_FEEDBACK_PACKET_LOSS_TRACKER_H_ |
| 13 | 13 |
| 14 #include <map> | 14 #include <map> |
| 15 | 15 |
| 16 #include "webrtc/base/optional.h" | 16 #include "webrtc/base/optional.h" |
| 17 #include "webrtc/modules/include/module_common_types.h" | 17 #include "webrtc/modules/include/module_common_types.h" |
| 18 | 18 |
| 19 namespace webrtc { | 19 namespace webrtc { |
| 20 | 20 |
| 21 namespace rtcp { | 21 namespace rtcp { |
| 22 class TransportFeedback; | 22 class TransportFeedback; |
| 23 } | 23 } |
| 24 | 24 |
| 25 struct PacketFeedback; | |
| 26 | |
| 25 class TransportFeedbackPacketLossTracker final { | 27 class TransportFeedbackPacketLossTracker final { |
| 26 public: | 28 public: |
| 27 // * We count up to |max_window_size_ms| from the sent | 29 // * We count up to |max_window_size_ms| from the sent |
| 28 // time of the latest acked packet for the calculation of the metrics. | 30 // time of the latest acked packet for the calculation of the metrics. |
| 29 // * PLR (packet-loss-rate) is reliably computable once the statuses of | 31 // * PLR (packet-loss-rate) is reliably computable once the statuses of |
| 30 // |plr_min_num_acked_packets| packets are known. | 32 // |plr_min_num_acked_packets| packets are known. |
| 31 // * RPLR (recoverable-packet-loss-rate) is reliably computable once the | 33 // * RPLR (recoverable-packet-loss-rate) is reliably computable once the |
| 32 // statuses of |rplr_min_num_acked_pairs| pairs are known. | 34 // statuses of |rplr_min_num_acked_pairs| pairs are known. |
| 33 TransportFeedbackPacketLossTracker(int64_t max_window_size_ms, | 35 TransportFeedbackPacketLossTracker(int64_t max_window_size_ms, |
| 34 size_t plr_min_num_acked_packets, | 36 size_t plr_min_num_acked_packets, |
| 35 size_t rplr_min_num_acked_pairs); | 37 size_t rplr_min_num_acked_pairs); |
| 36 | 38 |
| 37 void OnPacketAdded(uint16_t seq_num, int64_t send_time_ms); | 39 void OnPacketAdded(uint16_t seq_num, int64_t send_time_ms); |
| 38 | 40 |
| 39 void OnReceivedTransportFeedback(const rtcp::TransportFeedback& feedback); | 41 void OnPacketFeedbacks(const std::vector<PacketFeedback>& packet_feedbacks); |
|
the sun
2017/03/21 09:53:41
Drop the plural "s"
| |
| 40 | 42 |
| 41 // Returns the packet loss rate, if the window has enough packet statuses to | 43 // Returns the packet loss rate, if the window has enough packet statuses to |
| 42 // reliably compute it. Otherwise, returns empty. | 44 // reliably compute it. Otherwise, returns empty. |
| 43 rtc::Optional<float> GetPacketLossRate() const; | 45 rtc::Optional<float> GetPacketLossRate() const; |
| 44 | 46 |
| 45 // Returns the first-order-FEC recoverable packet loss rate, if the window has | 47 // Returns the first-order-FEC recoverable packet loss rate, if the window has |
| 46 // enough status pairs to reliably compute it. Otherwise, returns empty. | 48 // enough status pairs to reliably compute it. Otherwise, returns empty. |
| 47 rtc::Optional<float> GetRecoverablePacketLossRate() const; | 49 rtc::Optional<float> GetRecoverablePacketLossRate() const; |
| 48 | 50 |
| 49 // Verifies that the internal states are correct. Only used for tests. | 51 // Verifies that the internal states are correct. Only used for tests. |
| (...skipping 79 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... | |
| 129 // of all pairs of consecutive acked packets. | 131 // of all pairs of consecutive acked packets. |
| 130 const size_t min_num_acked_pairs_; | 132 const size_t min_num_acked_pairs_; |
| 131 size_t num_acked_pairs_; | 133 size_t num_acked_pairs_; |
| 132 size_t num_recoverable_losses_; | 134 size_t num_recoverable_losses_; |
| 133 } rplr_state_; | 135 } rplr_state_; |
| 134 }; | 136 }; |
| 135 | 137 |
| 136 } // namespace webrtc | 138 } // namespace webrtc |
| 137 | 139 |
| 138 #endif // WEBRTC_VOICE_ENGINE_TRANSPORT_FEEDBACK_PACKET_LOSS_TRACKER_H_ | 140 #endif // WEBRTC_VOICE_ENGINE_TRANSPORT_FEEDBACK_PACKET_LOSS_TRACKER_H_ |
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