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1 /* | 1 /* |
2 * Copyright (c) 2013 The WebRTC project authors. All Rights Reserved. | 2 * Copyright (c) 2013 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_ESTIMATOR_H_ | 10 #ifndef WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_ESTIMATOR_H_ |
11 #define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_ESTIMATOR_H_ | 11 #define WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_ESTIMATOR_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/common_types.h" | 16 #include "webrtc/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 | 18 |
19 namespace webrtc { | 19 namespace webrtc { |
20 | 20 |
21 class OveruseEstimator { | 21 class OveruseEstimator { |
22 public: | 22 public: |
23 OveruseEstimator(); | 23 explicit OveruseEstimator(const OverUseDetectorOptions& options); |
24 ~OveruseEstimator(); | 24 ~OveruseEstimator(); |
25 | 25 |
26 // Update the estimator with a new sample. The deltas should represent deltas | 26 // Update the estimator with a new sample. The deltas should represent deltas |
27 // between timestamp groups as defined by the InterArrival class. | 27 // between timestamp groups as defined by the InterArrival class. |
28 // |current_hypothesis| should be the hypothesis of the over-use detector at | 28 // |current_hypothesis| should be the hypothesis of the over-use detector at |
29 // this time. | 29 // this time. |
30 void Update(double recv_delta_ms, | 30 void Update(int64_t t_delta, double ts_delta, int size_delta, |
31 double send_delta_ms, | |
32 BandwidthUsage current_hypothesis); | 31 BandwidthUsage current_hypothesis); |
33 | 32 |
34 // Returns the estimated noise/jitter variance in ms^2. | 33 // Returns the estimated noise/jitter variance in ms^2. |
35 double var_noise() const { | 34 double var_noise() const { |
36 return var_noise_; | 35 return var_noise_; |
37 } | 36 } |
38 | 37 |
39 // Returns the estimated inter-arrival time delta offset in ms. | 38 // Returns the estimated inter-arrival time delta offset in ms. |
40 double offset() const { | 39 double offset() const { |
41 return offset_; | 40 return offset_; |
42 } | 41 } |
43 | 42 |
44 // Returns the number of deltas which the current over-use estimator state is | 43 // Returns the number of deltas which the current over-use estimator state is |
45 // based on. | 44 // based on. |
46 unsigned int num_of_deltas() const { | 45 unsigned int num_of_deltas() const { |
47 return num_of_deltas_; | 46 return num_of_deltas_; |
48 } | 47 } |
49 | 48 |
50 private: | 49 private: |
51 double UpdateMinFramePeriod(double send_delta_ms); | 50 double UpdateMinFramePeriod(double ts_delta); |
52 void UpdateNoiseEstimate(double residual, | 51 void UpdateNoiseEstimate(double residual, double ts_delta, bool stable_state); |
53 double send_delta_ms, | |
54 bool stable_state); | |
55 | 52 |
56 // Must be first member variable. Cannot be const because we need to be | 53 // Must be first member variable. Cannot be const because we need to be |
57 // copyable. | 54 // copyable. |
| 55 OverUseDetectorOptions options_; |
58 uint16_t num_of_deltas_; | 56 uint16_t num_of_deltas_; |
| 57 double slope_; |
59 double offset_; | 58 double offset_; |
60 double prev_offset_; | 59 double prev_offset_; |
61 double e_; | 60 double E_[2][2]; |
62 double process_noise_; | 61 double process_noise_[2]; |
63 double avg_noise_; | 62 double avg_noise_; |
64 double var_noise_; | 63 double var_noise_; |
65 std::list<double> send_delta_history_; | 64 std::list<double> ts_delta_hist_; |
66 | 65 |
67 RTC_DISALLOW_COPY_AND_ASSIGN(OveruseEstimator); | 66 RTC_DISALLOW_COPY_AND_ASSIGN(OveruseEstimator); |
68 }; | 67 }; |
69 } // namespace webrtc | 68 } // namespace webrtc |
70 | 69 |
71 #endif // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_ESTIMATOR_H_ | 70 #endif // WEBRTC_MODULES_REMOTE_BITRATE_ESTIMATOR_OVERUSE_ESTIMATOR_H_ |
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