chromium/third_party/webrtc/modules/audio_processing/agc2/input_volume_stats_reporter.cc

/*
 *  Copyright (c) 2021 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.
 */

#include "modules/audio_processing/agc2/input_volume_stats_reporter.h"

#include <cmath>

#include "absl/strings/string_view.h"
#include "rtc_base/logging.h"
#include "rtc_base/numerics/safe_minmax.h"
#include "rtc_base/strings/string_builder.h"
#include "system_wrappers/include/metrics.h"

namespace webrtc {
namespace {

InputVolumeType;

constexpr int kFramesIn60Seconds = …;
constexpr int kMinInputVolume = …;
constexpr int kMaxInputVolume = …;
constexpr int kMaxUpdate = …;

int ComputeAverageUpdate(int sum_updates, int num_updates) { … }

constexpr absl::string_view MetricNamePrefix(
    InputVolumeType input_volume_type) { … }

metrics::Histogram* CreateVolumeHistogram(InputVolumeType input_volume_type) { … }

metrics::Histogram* CreateRateHistogram(InputVolumeType input_volume_type,
                                        absl::string_view name) { … }

metrics::Histogram* CreateAverageHistogram(InputVolumeType input_volume_type,
                                           absl::string_view name) { … }

}  // namespace

InputVolumeStatsReporter::InputVolumeStatsReporter(InputVolumeType type)
    : … { … }

InputVolumeStatsReporter::~InputVolumeStatsReporter() = default;

void InputVolumeStatsReporter::UpdateStatistics(int input_volume) { … }

void InputVolumeStatsReporter::LogVolumeUpdateStats() const { … }

void UpdateHistogramOnRecommendedInputVolumeChangeToMatchTarget(int volume) { … }

}  // namespace webrtc