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Side by Side Diff: webrtc/common_audio/vad/vad_core.c

Issue 2947383002: Put attribute before function name instead of after, as required by GCC (Closed)
Patch Set: Created 3 years, 6 months ago
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1 /* 1 /*
2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2012 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
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108 data[k * kNumChannels] += offset; 108 data[k * kNumChannels] += offset;
109 weighted_average += data[k * kNumChannels] * weights[k * kNumChannels]; 109 weighted_average += data[k * kNumChannels] * weights[k * kNumChannels];
110 } 110 }
111 return weighted_average; 111 return weighted_average;
112 } 112 }
113 113
114 // An s16 x s32 -> s32 multiplication that's allowed to overflow. (It's still 114 // An s16 x s32 -> s32 multiplication that's allowed to overflow. (It's still
115 // undefined behavior, so not a good idea; this just makes UBSan ignore the 115 // undefined behavior, so not a good idea; this just makes UBSan ignore the
116 // violation, so that our old code can continue to do what it's always been 116 // violation, so that our old code can continue to do what it's always been
117 // doing.) 117 // doing.)
118 static inline int32_t OverflowingMulS16ByS32ToS32(int16_t a, int32_t b) 118 static inline int32_t RTC_NO_SANITIZE("signed-integer-overflow")
119 RTC_NO_SANITIZE("signed-integer-overflow") { 119 OverflowingMulS16ByS32ToS32(int16_t a, int32_t b) {
120 return a * b; 120 return a * b;
121 } 121 }
122 122
123 // Calculates the probabilities for both speech and background noise using 123 // Calculates the probabilities for both speech and background noise using
124 // Gaussian Mixture Models (GMM). A hypothesis-test is performed to decide which 124 // Gaussian Mixture Models (GMM). A hypothesis-test is performed to decide which
125 // type of signal is most probable. 125 // type of signal is most probable.
126 // 126 //
127 // - self [i/o] : Pointer to VAD instance 127 // - self [i/o] : Pointer to VAD instance
128 // - features [i] : Feature vector of length |kNumChannels| 128 // - features [i] : Feature vector of length |kNumChannels|
129 // = log10(energy in frequency band) 129 // = log10(energy in frequency band)
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677 677
678 // Get power in the bands 678 // Get power in the bands
679 total_power = WebRtcVad_CalculateFeatures(inst, speech_frame, frame_length, 679 total_power = WebRtcVad_CalculateFeatures(inst, speech_frame, frame_length,
680 feature_vector); 680 feature_vector);
681 681
682 // Make a VAD 682 // Make a VAD
683 inst->vad = GmmProbability(inst, feature_vector, total_power, frame_length); 683 inst->vad = GmmProbability(inst, feature_vector, total_power, frame_length);
684 684
685 return inst->vad; 685 return inst->vad;
686 } 686 }
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