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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 #ifndef WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_ | 10 #ifndef WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_ |
11 #define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_ | 11 #define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_ |
12 | 12 |
13 #include <list> | 13 #include <list> |
14 | 14 |
15 #include "webrtc/base/constructormagic.h" | 15 #include "webrtc/base/constructormagic.h" |
16 #include "webrtc/modules/interface/module_common_types.h" | 16 #include "webrtc/modules/interface/module_common_types.h" |
17 #include "webrtc/modules/remote_bitrate_estimator/include/bwe_defines.h" | 17 #include "webrtc/modules/remote_bitrate_estimator/include/bwe_defines.h" |
18 #include "webrtc/typedefs.h" | 18 #include "webrtc/typedefs.h" |
19 | 19 |
20 namespace webrtc { | 20 namespace webrtc { |
21 enum RateControlRegion; | 21 enum RateControlRegion; |
22 | 22 |
23 class OveruseDetector { | 23 class OveruseDetector { |
24 public: | 24 public: |
25 explicit OveruseDetector(const OverUseDetectorOptions& options); | 25 explicit OveruseDetector(const OverUseDetectorOptions& options); |
26 ~OveruseDetector(); | 26 virtual ~OveruseDetector(); |
27 | 27 |
28 // Update the detection state based on the estimated inter-arrival time delta | 28 // Update the detection state based on the estimated inter-arrival time delta |
29 // offset. |timestamp_delta| is the delta between the last timestamp which the | 29 // offset. |timestamp_delta| is the delta between the last timestamp which the |
30 // estimated offset is based on and the last timestamp on which the last | 30 // estimated offset is based on and the last timestamp on which the last |
31 // offset was based on, representing the time between detector updates. | 31 // offset was based on, representing the time between detector updates. |
32 // |num_of_deltas| is the number of deltas the offset estimate is based on. | 32 // |num_of_deltas| is the number of deltas the offset estimate is based on. |
33 // Returns the state after the detection update. | 33 // Returns the state after the detection update. |
34 BandwidthUsage Detect(double offset, | 34 BandwidthUsage Detect(double offset, |
35 double timestamp_delta, | 35 double timestamp_delta, |
36 int num_of_deltas, | 36 int num_of_deltas, |
37 int64_t now_ms); | 37 int64_t now_ms); |
38 | 38 |
39 // Returns the current detector state. | 39 // Returns the current detector state. |
40 BandwidthUsage State() const; | 40 BandwidthUsage State() const; |
41 | 41 |
42 // Sets the current rate-control region as decided by RemoteRateControl. This | 42 virtual bool AdaptiveThresholdExperimentIsEnabled() const; |
43 // affects the sensitivity of the detector. | |
44 void SetRateControlRegion(webrtc::RateControlRegion region); | |
45 | 43 |
46 private: | 44 private: |
| 45 void UpdateThreshold(double modified_offset, int64_t now_ms); |
| 46 bool GetExperimentThresholds(double* k_up, double* k_down) const; |
| 47 |
47 // Must be first member variable. Cannot be const because we need to be | 48 // Must be first member variable. Cannot be const because we need to be |
48 // copyable. | 49 // copyable. |
49 webrtc::OverUseDetectorOptions options_; | 50 webrtc::OverUseDetectorOptions options_; |
50 double threshold_; | 51 double threshold_; |
| 52 int64_t last_update_ms_; |
51 double prev_offset_; | 53 double prev_offset_; |
52 double time_over_using_; | 54 double time_over_using_; |
53 int overuse_counter_; | 55 int overuse_counter_; |
54 BandwidthUsage hypothesis_; | 56 BandwidthUsage hypothesis_; |
| 57 double k_up_; |
| 58 double k_down_; |
55 | 59 |
56 DISALLOW_COPY_AND_ASSIGN(OveruseDetector); | 60 DISALLOW_COPY_AND_ASSIGN(OveruseDetector); |
57 }; | 61 }; |
58 } // namespace webrtc | 62 } // namespace webrtc |
59 | 63 |
60 #endif // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_ | 64 #endif // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_DETECTOR_H_ |
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