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f3122e0efe
We add 2 metrics for measuring applied digital gain to AgcManagerDirect. We also add an applied gain and an estimated noise metric to Agc2. Chromium histogram CL is https://chromium-review.googlesource.com/c/chromium/src/+/1170833 Bug: webrtc:7494 Change-Id: Ie40873f9e43bc7d34d8f5473cd73bd47eb84e855 Reviewed-on: https://webrtc-review.googlesource.com/93468 Reviewed-by: Ivo Creusen <ivoc@webrtc.org> Commit-Queue: Alex Loiko <aleloi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24290}
46 lines
1.7 KiB
C++
46 lines
1.7 KiB
C++
/*
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* Copyright (c) 2018 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_PROCESSING_AGC2_ADAPTIVE_DIGITAL_GAIN_APPLIER_H_
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#define MODULES_AUDIO_PROCESSING_AGC2_ADAPTIVE_DIGITAL_GAIN_APPLIER_H_
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#include "modules/audio_processing/agc2/agc2_common.h"
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#include "modules/audio_processing/agc2/gain_applier.h"
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#include "modules/audio_processing/agc2/vad_with_level.h"
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#include "modules/audio_processing/include/audio_frame_view.h"
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namespace webrtc {
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class ApmDataDumper;
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class AdaptiveDigitalGainApplier {
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public:
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explicit AdaptiveDigitalGainApplier(ApmDataDumper* apm_data_dumper);
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// Decide what gain to apply.
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void Process(float input_level_dbfs,
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float input_noise_level_dbfs,
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const VadWithLevel::LevelAndProbability vad_result,
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AudioFrameView<float> float_frame);
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private:
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float last_gain_db_ = kInitialAdaptiveDigitalGainDb;
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GainApplier gain_applier_;
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int calls_since_last_gain_log_ = 0;
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// For some combinations of noise and speech probability, increasing
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// the level is not allowed. Since we may get VAD results in bursts,
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// we keep track of this variable until the next VAD results come
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// in.
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bool gain_increase_allowed_ = true;
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ApmDataDumper* apm_data_dumper_ = nullptr;
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};
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} // namespace webrtc
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#endif // MODULES_AUDIO_PROCESSING_AGC2_ADAPTIVE_DIGITAL_GAIN_APPLIER_H_
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