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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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|  106   static void Mute(AudioFrame* frame, |  106   static void Mute(AudioFrame* frame, | 
|  107                    bool previous_frame_muted, |  107                    bool previous_frame_muted, | 
|  108                    bool current_frame_muted); |  108                    bool current_frame_muted); | 
|  109  |  109  | 
|  110   // Zero out contents of frame. |  110   // Zero out contents of frame. | 
|  111   static void Mute(AudioFrame* frame); |  111   static void Mute(AudioFrame* frame); | 
|  112  |  112  | 
|  113   // Halve samples in |frame|. |  113   // Halve samples in |frame|. | 
|  114   static void ApplyHalfGain(AudioFrame* frame); |  114   static void ApplyHalfGain(AudioFrame* frame); | 
|  115  |  115  | 
|  116   static int Scale(float left, float right, AudioFrame* frame); |  116   static int Scale(float left, float right, AudioFrame& frame); | 
|  117  |  117  | 
|  118   static int ScaleWithSat(float scale, AudioFrame* frame); |  118   static int ScaleWithSat(float scale, AudioFrame& frame); | 
|  119 }; |  119 }; | 
|  120  |  120  | 
|  121 }  // namespace webrtc |  121 }  // namespace webrtc | 
|  122  |  122  | 
|  123 #endif  // WEBRTC_AUDIO_UTILITY_AUDIO_FRAME_OPERATIONS_H_ |  123 #endif  // WEBRTC_AUDIO_UTILITY_AUDIO_FRAME_OPERATIONS_H_ | 
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