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3e70781361
This is a follow-up to https://webrtc-review.googlesource.com/c/src/+/106280. This time the whole code base is covered. Some files may have not been fixed though, whenever the IWYU tool was breaking the build. Bug: webrtc:8311 Change-Id: I2c31f552a87e887d33931d46e87b6208b1e483ef Reviewed-on: https://webrtc-review.googlesource.com/c/111965 Commit-Queue: Yves Gerey <yvesg@google.com> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Cr-Commit-Position: refs/heads/master@{#25830}
42 lines
1.3 KiB
C++
42 lines
1.3 KiB
C++
/*
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* Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_AUDIO_MIXER_GAIN_CHANGE_CALCULATOR_H_
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#define MODULES_AUDIO_MIXER_GAIN_CHANGE_CALCULATOR_H_
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#include <stdint.h>
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#include "api/array_view.h"
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namespace webrtc {
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class GainChangeCalculator {
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public:
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// The 'out' signal is assumed to be produced from 'in' by applying
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// a smoothly varying gain. This method computes variations of the
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// gain and handles special cases when the samples are small.
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float CalculateGainChange(rtc::ArrayView<const int16_t> in,
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rtc::ArrayView<const int16_t> out);
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float LatestGain() const;
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private:
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void CalculateGain(rtc::ArrayView<const int16_t> in,
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rtc::ArrayView<const int16_t> out,
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rtc::ArrayView<float> gain);
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float CalculateDifferences(rtc::ArrayView<const float> values);
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float last_value_ = 0.f;
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float last_reliable_gain_ = 1.0f;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_MIXER_GAIN_CHANGE_CALCULATOR_H_
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