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Side by Side Diff: webrtc/modules/audio_processing/aec3/suppression_gain.cc

Issue 2964773002: Revert "Update includes for webrtc/{base => rtc_base} rename (1/3)" (Closed)
Patch Set: Created 3 years, 5 months ago
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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/suppression_gain.h" 11 #include "webrtc/modules/audio_processing/aec3/suppression_gain.h"
12 12
13 #include "webrtc/typedefs.h" 13 #include "webrtc/typedefs.h"
14 #if defined(WEBRTC_ARCH_X86_FAMILY) 14 #if defined(WEBRTC_ARCH_X86_FAMILY)
15 #include <emmintrin.h> 15 #include <emmintrin.h>
16 #endif 16 #endif
17 #include <math.h> 17 #include <math.h>
18 #include <algorithm> 18 #include <algorithm>
19 #include <functional> 19 #include <functional>
20 #include <numeric> 20 #include <numeric>
21 21
22 #include "webrtc/base/checks.h"
22 #include "webrtc/modules/audio_processing/aec3/vector_math.h" 23 #include "webrtc/modules/audio_processing/aec3/vector_math.h"
23 #include "webrtc/rtc_base/checks.h"
24 24
25 namespace webrtc { 25 namespace webrtc {
26 namespace { 26 namespace {
27 27
28 // Adjust the gains according to the presence of known external filters. 28 // Adjust the gains according to the presence of known external filters.
29 void AdjustForExternalFilters(std::array<float, kFftLengthBy2Plus1>* gain) { 29 void AdjustForExternalFilters(std::array<float, kFftLengthBy2Plus1>* gain) {
30 // Limit the low frequency gains to avoid the impact of the high-pass filter 30 // Limit the low frequency gains to avoid the impact of the high-pass filter
31 // on the lower-frequency gain influencing the overall achieved gain. 31 // on the lower-frequency gain influencing the overall achieved gain.
32 (*gain)[0] = (*gain)[1] = std::min((*gain)[1], (*gain)[2]); 32 (*gain)[0] = (*gain)[1] = std::min((*gain)[1], (*gain)[2]);
33 33
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303 } 303 }
304 304
305 constexpr float kThreshold = 50.f * 50.f * 64.f; 305 constexpr float kThreshold = 50.f * 50.f * 64.f;
306 const bool low_noise_render = 306 const bool low_noise_render =
307 average_power_ < kThreshold && x2_max < 3 * average_power_; 307 average_power_ < kThreshold && x2_max < 3 * average_power_;
308 average_power_ = average_power_ * 0.9f + x2_sum * 0.1f; 308 average_power_ = average_power_ * 0.9f + x2_sum * 0.1f;
309 return low_noise_render; 309 return low_noise_render;
310 } 310 }
311 311
312 } // namespace webrtc 312 } // namespace webrtc
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