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Side by Side Diff: webrtc/modules/audio_processing/rms_level.cc

Issue 2320053003: webrtc/modules/audio_processing: Use RTC_DCHECK() instead of assert() (Closed)
Patch Set: rebase Created 4 years, 3 months ago
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1 /* 1 /*
2 * Copyright (c) 2014 The WebRTC project authors. All Rights Reserved. 2 * Copyright (c) 2014 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/rms_level.h" 11 #include "webrtc/modules/audio_processing/rms_level.h"
12 12
13 #include <assert.h>
14 #include <math.h> 13 #include <math.h>
15 14
15 #include "webrtc/base/checks.h"
16
16 namespace webrtc { 17 namespace webrtc {
17 18
18 static const float kMaxSquaredLevel = 32768 * 32768; 19 static const float kMaxSquaredLevel = 32768 * 32768;
19 20
20 RMSLevel::RMSLevel() 21 RMSLevel::RMSLevel()
21 : sum_square_(0), 22 : sum_square_(0),
22 sample_count_(0) {} 23 sample_count_(0) {}
23 24
24 RMSLevel::~RMSLevel() {} 25 RMSLevel::~RMSLevel() {}
25 26
(...skipping 16 matching lines...) Expand all
42 int RMSLevel::RMS() { 43 int RMSLevel::RMS() {
43 if (sample_count_ == 0 || sum_square_ == 0) { 44 if (sample_count_ == 0 || sum_square_ == 0) {
44 Reset(); 45 Reset();
45 return kMinLevel; 46 return kMinLevel;
46 } 47 }
47 48
48 // Normalize by the max level. 49 // Normalize by the max level.
49 float rms = sum_square_ / (sample_count_ * kMaxSquaredLevel); 50 float rms = sum_square_ / (sample_count_ * kMaxSquaredLevel);
50 // 20log_10(x^0.5) = 10log_10(x) 51 // 20log_10(x^0.5) = 10log_10(x)
51 rms = 10 * log10(rms); 52 rms = 10 * log10(rms);
52 assert(rms <= 0); 53 RTC_DCHECK_LE(rms, 0);
53 if (rms < -kMinLevel) 54 if (rms < -kMinLevel)
54 rms = -kMinLevel; 55 rms = -kMinLevel;
55 56
56 rms = -rms; 57 rms = -rms;
57 Reset(); 58 Reset();
58 return static_cast<int>(rms + 0.5); 59 return static_cast<int>(rms + 0.5);
59 } 60 }
60 61
61 } // namespace webrtc 62 } // namespace webrtc
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