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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 #include "webrtc/modules/audio_processing/aec3/erle_estimator.h" | 11 #include "webrtc/modules/audio_processing/aec3/erle_estimator.h" |
12 | 12 |
13 #include <algorithm> | 13 #include <algorithm> |
14 | 14 |
15 #include "webrtc/base/safe_minmax.h" | 15 #include "webrtc/rtc_base/safe_minmax.h" |
16 | 16 |
17 namespace webrtc { | 17 namespace webrtc { |
18 | 18 |
19 namespace { | 19 namespace { |
20 | 20 |
21 constexpr float kMinErle = 1.f; | 21 constexpr float kMinErle = 1.f; |
22 constexpr float kMaxLfErle = 8.f; | 22 constexpr float kMaxLfErle = 8.f; |
23 constexpr float kMaxHfErle = 1.5f; | 23 constexpr float kMaxHfErle = 1.5f; |
24 | 24 |
25 } // namespace | 25 } // namespace |
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63 std::transform(hold_counters_.begin(), hold_counters_.end(), | 63 std::transform(hold_counters_.begin(), hold_counters_.end(), |
64 erle_.begin() + 1, erle_.begin() + 1, [](int a, float b) { | 64 erle_.begin() + 1, erle_.begin() + 1, [](int a, float b) { |
65 return a > 0 ? b : std::max(kMinErle, 0.97f * b); | 65 return a > 0 ? b : std::max(kMinErle, 0.97f * b); |
66 }); | 66 }); |
67 | 67 |
68 erle_[0] = erle_[1]; | 68 erle_[0] = erle_[1]; |
69 erle_[kFftLengthBy2] = erle_[kFftLengthBy2 - 1]; | 69 erle_[kFftLengthBy2] = erle_[kFftLengthBy2 - 1]; |
70 } | 70 } |
71 | 71 |
72 } // namespace webrtc | 72 } // namespace webrtc |
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