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Side by Side Diff: webrtc/modules/audio_processing/level_controller/signal_classifier.cc

Issue 3007763002: Move array_view.h to webrtc/api/ (Closed)
Patch Set: rebase Created 3 years, 3 months ago
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1 /* 1 /*
2 * Copyright (c) 2016 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2016 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/level_controller/signal_classifier.h" 11 #include "webrtc/modules/audio_processing/level_controller/signal_classifier.h"
12 12
13 #include <algorithm> 13 #include <algorithm>
14 #include <numeric> 14 #include <numeric>
15 #include <vector> 15 #include <vector>
16 16
17 #include "webrtc/api/array_view.h"
17 #include "webrtc/modules/audio_processing/audio_buffer.h" 18 #include "webrtc/modules/audio_processing/audio_buffer.h"
18 #include "webrtc/modules/audio_processing/level_controller/down_sampler.h" 19 #include "webrtc/modules/audio_processing/level_controller/down_sampler.h"
19 #include "webrtc/modules/audio_processing/level_controller/noise_spectrum_estima tor.h" 20 #include "webrtc/modules/audio_processing/level_controller/noise_spectrum_estima tor.h"
20 #include "webrtc/modules/audio_processing/logging/apm_data_dumper.h" 21 #include "webrtc/modules/audio_processing/logging/apm_data_dumper.h"
21 #include "webrtc/rtc_base/array_view.h"
22 #include "webrtc/rtc_base/constructormagic.h" 22 #include "webrtc/rtc_base/constructormagic.h"
23 23
24 namespace webrtc { 24 namespace webrtc {
25 namespace { 25 namespace {
26 26
27 void RemoveDcLevel(rtc::ArrayView<float> x) { 27 void RemoveDcLevel(rtc::ArrayView<float> x) {
28 RTC_DCHECK_LT(0, x.size()); 28 RTC_DCHECK_LT(0, x.size());
29 float mean = std::accumulate(x.data(), x.data() + x.size(), 0.f); 29 float mean = std::accumulate(x.data(), x.data() + x.size(), 0.f);
30 mean /= x.size(); 30 mean /= x.size();
31 31
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162 last_signal_type_ = *signal_type; 162 last_signal_type_ = *signal_type;
163 consistent_classification_counter_ = 3; 163 consistent_classification_counter_ = 3;
164 } 164 }
165 165
166 if (consistent_classification_counter_ > 0) { 166 if (consistent_classification_counter_ > 0) {
167 *signal_type = SignalClassifier::SignalType::kNonStationary; 167 *signal_type = SignalClassifier::SignalType::kNonStationary;
168 } 168 }
169 } 169 }
170 170
171 } // namespace webrtc 171 } // namespace webrtc
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