mirror of
https://github.com/mollyim/webrtc.git
synced 2025-05-14 22:30:40 +01:00
bb547203bf
In order to eliminate the WebRTC Subtree mirror in Chromium, WebRTC is moving the content of the src/webrtc directory up to the src/ directory. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true TBR=tommi@webrtc.org Bug: chromium:611808 Change-Id: Iac59c5b51b950f174119565bac87955a7994bc38 Reviewed-on: https://webrtc-review.googlesource.com/1560 Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Henrik Kjellander <kjellander@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19845}
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
/*
|
|
* Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
|
|
*
|
|
* Use of this source code is governed by a BSD-style license
|
|
* that can be found in the LICENSE file in the root of the source
|
|
* tree. An additional intellectual property rights grant can be found
|
|
* in the file PATENTS. All contributing project authors may
|
|
* be found in the AUTHORS file in the root of the source tree.
|
|
*/
|
|
|
|
#ifndef WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_GAIN_APPLIER_H_
|
|
#define WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_GAIN_APPLIER_H_
|
|
|
|
#include "webrtc/rtc_base/constructormagic.h"
|
|
|
|
namespace webrtc {
|
|
|
|
class ApmDataDumper;
|
|
class AudioBuffer;
|
|
|
|
class GainApplier {
|
|
public:
|
|
explicit GainApplier(ApmDataDumper* data_dumper);
|
|
void Initialize(int sample_rate_hz);
|
|
|
|
// Applies the specified gain to the audio frame and returns the resulting
|
|
// number of saturated sample values.
|
|
int Process(float new_gain, AudioBuffer* audio);
|
|
|
|
private:
|
|
ApmDataDumper* const data_dumper_;
|
|
float old_gain_ = 1.f;
|
|
float gain_increase_step_size_ = 0.f;
|
|
float gain_normal_decrease_step_size_ = 0.f;
|
|
float gain_saturated_decrease_step_size_ = 0.f;
|
|
bool last_frame_was_saturated_;
|
|
RTC_DISALLOW_IMPLICIT_CONSTRUCTORS(GainApplier);
|
|
};
|
|
|
|
} // namespace webrtc
|
|
|
|
#endif // WEBRTC_MODULES_AUDIO_PROCESSING_LEVEL_CONTROLLER_GAIN_APPLIER_H_
|