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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 |
| 11 #include "webrtc/tools/agc/test_utils.h" | 11 #include "webrtc/tools/agc/test_utils.h" |
| 12 | 12 |
| 13 #include <cmath> | 13 #include <cmath> |
| 14 | 14 |
| 15 #include <algorithm> | 15 #include <algorithm> |
| 16 | 16 |
| 17 #include "webrtc/modules/interface/module_common_types.h" | 17 #include "webrtc/modules/include/module_common_types.h" |
| 18 | 18 |
| 19 namespace webrtc { | 19 namespace webrtc { |
| 20 | 20 |
| 21 float MicLevel2Gain(int gain_range_db, int level) { | 21 float MicLevel2Gain(int gain_range_db, int level) { |
| 22 return (level - 127.0f) / 128.0f * gain_range_db / 2; | 22 return (level - 127.0f) / 128.0f * gain_range_db / 2; |
| 23 } | 23 } |
| 24 | 24 |
| 25 float Db2Linear(float db) { | 25 float Db2Linear(float db) { |
| 26 return powf(10.0f, db / 20.0f); | 26 return powf(10.0f, db / 20.0f); |
| 27 } | 27 } |
| (...skipping 27 matching lines...) Expand all Loading... |
| 55 | 55 |
| 56 void SimulateMic(int gain_map[255], int mic_level, int last_mic_level, | 56 void SimulateMic(int gain_map[255], int mic_level, int last_mic_level, |
| 57 AudioFrame* frame) { | 57 AudioFrame* frame) { |
| 58 assert(mic_level >= 0 && mic_level <= 255); | 58 assert(mic_level >= 0 && mic_level <= 255); |
| 59 assert(last_mic_level >= 0 && last_mic_level <= 255); | 59 assert(last_mic_level >= 0 && last_mic_level <= 255); |
| 60 ApplyGain(gain_map[mic_level], gain_map[last_mic_level], frame); | 60 ApplyGain(gain_map[mic_level], gain_map[last_mic_level], frame); |
| 61 } | 61 } |
| 62 | 62 |
| 63 } // namespace webrtc | 63 } // namespace webrtc |
| 64 | 64 |
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