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1 /* | |
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. | |
3 * | |
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 | |
6 * tree. An additional intellectual property rights grant can be found | |
7 * in the file PATENTS. All contributing project authors may | |
8 * be found in the AUTHORS file in the root of the source tree. | |
9 */ | |
10 | |
11 #include "webrtc/modules/remote_bitrate_estimator/probing_interval_estimator.h" | |
12 | |
13 #include <algorithm> | |
14 #include <utility> | |
15 | |
16 namespace webrtc { | |
17 | |
18 namespace { | |
19 constexpr int kMinIntervalMs = 2000; | |
20 constexpr int kMaxIntervalMs = 50000; | |
21 } | |
22 | |
23 ProbingIntervalEstimator::ProbingIntervalEstimator( | |
24 const AimdRateControl* const aimd_rate_control) | |
25 : ProbingIntervalEstimator(kMinIntervalMs, | |
26 kMaxIntervalMs, | |
27 aimd_rate_control) {} | |
28 | |
29 ProbingIntervalEstimator::ProbingIntervalEstimator( | |
30 int min_interval_ms, | |
31 int max_interval_ms, | |
32 const AimdRateControl* const aimd_rate_control) | |
33 : min_interval_ms_(min_interval_ms), | |
34 max_interval_ms_(max_interval_ms), | |
35 aimd_rate_control_(aimd_rate_control) {} | |
36 | |
37 rtc::Optional<int> ProbingIntervalEstimator::GetIntervalMs() const { | |
38 auto drop_hight = aimd_rate_control_->GetLastDecrease(); | |
stefan-webrtc
2016/10/26 14:30:06
drop_height
I would also prefer not using auto fo
| |
39 auto increase_rate = aimd_rate_control_->GetNearMaxIncreaseRate(); | |
40 if (drop_hight && increase_rate && *increase_rate > 0) { | |
41 return rtc::Optional<int>(std::min( | |
42 max_interval_ms_, | |
43 std::max(1000 * (*drop_hight) / (*increase_rate), min_interval_ms_))); | |
44 } | |
45 return rtc::Optional<int>(); | |
stefan-webrtc
2016/10/26 14:30:06
Have the "expected path" return here instead.
so
| |
46 } | |
47 | |
48 } // namespace webrtc | |
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