webrtc_m130/modules/audio_processing/agc2/fixed_gain_controller.h
Alex Loiko 9d2788f745 Make possible to activate adaptive AGC2 in the APM.
We update the configuration settings for AGC2. We also update their
effects. Now, 'gain_controller2.enable=true' means 'first run Adaptive
AGC2; then run AGC2 limiter'.

Previously, only the AGC2 limiter was implemented. To run that, one
had to set both 'gain_controller2.enable=true' and
'gain_controller2.enable_limiter=true'.

This setting also enables adaptive AGC2 in the test tool 'audioproc_f'.

Bug: webrtc:7494
Change-Id: I0d5dfe443f2cdc0ecf3aa4054442dab6276d284d
Reviewed-on: https://webrtc-review.googlesource.com/64990
Reviewed-by: Sam Zackrisson <saza@webrtc.org>
Commit-Queue: Alex Loiko <aleloi@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22669}
2018-03-29 09:42:07 +00:00

40 lines
1.2 KiB
C++

/*
* Copyright (c) 2018 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 MODULES_AUDIO_PROCESSING_AGC2_FIXED_GAIN_CONTROLLER_H_
#define MODULES_AUDIO_PROCESSING_AGC2_FIXED_GAIN_CONTROLLER_H_
#include "modules/audio_processing/agc2/gain_curve_applier.h"
#include "modules/audio_processing/include/audio_frame_view.h"
namespace webrtc {
class ApmDataDumper;
class FixedGainController {
public:
explicit FixedGainController(ApmDataDumper* apm_data_dumper);
void Process(AudioFrameView<float> signal);
// Rate and gain may be changed at any time (but not concurrently
// with any other method call).
void SetGain(float gain_to_apply_db);
void SetSampleRate(size_t sample_rate_hz);
private:
float gain_to_apply_ = 1.f;
ApmDataDumper* apm_data_dumper_ = nullptr;
GainCurveApplier gain_curve_applier_;
};
} // namespace webrtc
#endif // MODULES_AUDIO_PROCESSING_AGC2_FIXED_GAIN_CONTROLLER_H_