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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 * FEC and NACK added bitrate is handled outside class | 10 * FEC and NACK added bitrate is handled outside class |
| 11 */ | 11 */ |
| 12 | 12 |
| 13 #ifndef WEBRTC_MODULES_BITRATE_CONTROLLER_SEND_SIDE_BANDWIDTH_ESTIMATION_H_ | 13 #ifndef WEBRTC_MODULES_BITRATE_CONTROLLER_SEND_SIDE_BANDWIDTH_ESTIMATION_H_ |
| 14 #define WEBRTC_MODULES_BITRATE_CONTROLLER_SEND_SIDE_BANDWIDTH_ESTIMATION_H_ | 14 #define WEBRTC_MODULES_BITRATE_CONTROLLER_SEND_SIDE_BANDWIDTH_ESTIMATION_H_ |
| 15 | 15 |
| 16 #include <deque> | 16 #include <deque> |
| 17 #include <utility> | 17 #include <utility> |
| 18 #include <vector> | 18 #include <vector> |
| 19 | 19 |
| 20 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" | 20 #include "webrtc/modules/rtp_rtcp/include/rtp_rtcp_defines.h" |
| 21 #include "webrtc/system_wrappers/include/critical_section_wrapper.h" | 21 #include "webrtc/system_wrappers/include/critical_section_wrapper.h" |
| 22 | 22 |
| 23 namespace webrtc { | 23 namespace webrtc { |
| 24 | 24 |
| 25 class RtcEventLog; | 25 class RtcEventLog; |
| 26 | 26 |
| 27 class SendSideBandwidthEstimation { | 27 class SendSideBandwidthEstimation { |
| 28 public: | 28 public: |
| 29 SendSideBandwidthEstimation(); | 29 SendSideBandwidthEstimation() = delete; |
| 30 explicit SendSideBandwidthEstimation(RtcEventLog* event_log); |
| 30 virtual ~SendSideBandwidthEstimation(); | 31 virtual ~SendSideBandwidthEstimation(); |
| 31 | 32 |
| 32 void CurrentEstimate(int* bitrate, uint8_t* loss, int64_t* rtt) const; | 33 void CurrentEstimate(int* bitrate, uint8_t* loss, int64_t* rtt) const; |
| 33 | 34 |
| 34 // Call periodically to update estimate. | 35 // Call periodically to update estimate. |
| 35 void UpdateEstimate(int64_t now_ms); | 36 void UpdateEstimate(int64_t now_ms); |
| 36 | 37 |
| 37 // Call when we receive a RTCP message with TMMBR or REMB. | 38 // Call when we receive a RTCP message with TMMBR or REMB. |
| 38 void UpdateReceiverEstimate(int64_t now_ms, uint32_t bandwidth); | 39 void UpdateReceiverEstimate(int64_t now_ms, uint32_t bandwidth); |
| 39 | 40 |
| 40 // Call when a new delay-based estimate is available. | 41 // Call when a new delay-based estimate is available. |
| 41 void UpdateDelayBasedEstimate(int64_t now_ms, uint32_t bitrate_bps); | 42 void UpdateDelayBasedEstimate(int64_t now_ms, uint32_t bitrate_bps); |
| 42 | 43 |
| 43 // Call when we receive a RTCP message with a ReceiveBlock. | 44 // Call when we receive a RTCP message with a ReceiveBlock. |
| 44 void UpdateReceiverBlock(uint8_t fraction_loss, | 45 void UpdateReceiverBlock(uint8_t fraction_loss, |
| 45 int64_t rtt, | 46 int64_t rtt, |
| 46 int number_of_packets, | 47 int number_of_packets, |
| 47 int64_t now_ms); | 48 int64_t now_ms); |
| 48 | 49 |
| 49 void SetBitrates(int send_bitrate, | 50 void SetBitrates(int send_bitrate, |
| 50 int min_bitrate, | 51 int min_bitrate, |
| 51 int max_bitrate); | 52 int max_bitrate); |
| 52 void SetSendBitrate(int bitrate); | 53 void SetSendBitrate(int bitrate); |
| 53 void SetMinMaxBitrate(int min_bitrate, int max_bitrate); | 54 void SetMinMaxBitrate(int min_bitrate, int max_bitrate); |
| 54 int GetMinBitrate() const; | 55 int GetMinBitrate() const; |
| 55 | 56 |
| 56 void SetEventLog(RtcEventLog* event_log); | |
| 57 | |
| 58 private: | 57 private: |
| 59 enum UmaState { kNoUpdate, kFirstDone, kDone }; | 58 enum UmaState { kNoUpdate, kFirstDone, kDone }; |
| 60 | 59 |
| 61 bool IsInStartPhase(int64_t now_ms) const; | 60 bool IsInStartPhase(int64_t now_ms) const; |
| 62 | 61 |
| 63 void UpdateUmaStats(int64_t now_ms, int64_t rtt, int lost_packets); | 62 void UpdateUmaStats(int64_t now_ms, int64_t rtt, int lost_packets); |
| 64 | 63 |
| 65 // Returns the input bitrate capped to the thresholds defined by the max, | 64 // Returns the input bitrate capped to the thresholds defined by the max, |
| 66 // min and incoming bandwidth. | 65 // min and incoming bandwidth. |
| 67 uint32_t CapBitrateToThresholds(int64_t now_ms, uint32_t bitrate); | 66 uint32_t CapBitrateToThresholds(int64_t now_ms, uint32_t bitrate); |
| (...skipping 24 matching lines...) Expand all Loading... |
| 92 int64_t time_last_decrease_ms_; | 91 int64_t time_last_decrease_ms_; |
| 93 int64_t first_report_time_ms_; | 92 int64_t first_report_time_ms_; |
| 94 int initially_lost_packets_; | 93 int initially_lost_packets_; |
| 95 int bitrate_at_2_seconds_kbps_; | 94 int bitrate_at_2_seconds_kbps_; |
| 96 UmaState uma_update_state_; | 95 UmaState uma_update_state_; |
| 97 std::vector<bool> rampup_uma_stats_updated_; | 96 std::vector<bool> rampup_uma_stats_updated_; |
| 98 RtcEventLog* event_log_; | 97 RtcEventLog* event_log_; |
| 99 }; | 98 }; |
| 100 } // namespace webrtc | 99 } // namespace webrtc |
| 101 #endif // WEBRTC_MODULES_BITRATE_CONTROLLER_SEND_SIDE_BANDWIDTH_ESTIMATION_H_ | 100 #endif // WEBRTC_MODULES_BITRATE_CONTROLLER_SEND_SIDE_BANDWIDTH_ESTIMATION_H_ |
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