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a4d873786f
This CL was generated by running git ls-files | grep -P "(\.h|\.cc)$" | grep -v 'sdk/' | grep -v 'rtc_base/ssl_' | \ grep -v 'fake_rtc_certificate_generator.h' | grep -v 'modules/audio_device/win/' | \ grep -v 'system_wrappers/source/clock.cc' | grep -v 'rtc_base/trace_event.h' | \ grep -v 'modules/audio_coding/codecs/ilbc/' | grep -v 'screen_capturer_mac.h' | \ grep -v 'spl_inl_mips.h' | grep -v 'data_size_unittest.cc' | grep -v 'timestamp_unittest.cc' \ | xargs clang-format -i ; git cl format Most of these changes are clang-format grouping and reordering includes differently. Bug: webrtc:9340 Change-Id: Ic83ddbc169bfacd21883e381b5181c3dd4fe8a63 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/144051 Commit-Queue: Jonas Olsson <jonasolsson@webrtc.org> Reviewed-by: Karl Wiberg <kwiberg@webrtc.org> Cr-Commit-Position: refs/heads/master@{#28505}
63 lines
1.7 KiB
C++
63 lines
1.7 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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#include "modules/audio_mixer/gain_change_calculator.h"
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#include <math.h>
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#include <cstdlib>
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#include <vector>
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#include "rtc_base/checks.h"
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namespace webrtc {
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namespace {
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constexpr int16_t kReliabilityThreshold = 100;
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} // namespace
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float GainChangeCalculator::CalculateGainChange(
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rtc::ArrayView<const int16_t> in,
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rtc::ArrayView<const int16_t> out) {
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RTC_DCHECK_EQ(in.size(), out.size());
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std::vector<float> gain(in.size());
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CalculateGain(in, out, gain);
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return CalculateDifferences(gain);
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}
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float GainChangeCalculator::LatestGain() const {
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return last_reliable_gain_;
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}
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void GainChangeCalculator::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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RTC_DCHECK_EQ(in.size(), out.size());
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RTC_DCHECK_EQ(in.size(), gain.size());
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for (size_t i = 0; i < in.size(); ++i) {
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if (std::abs(in[i]) >= kReliabilityThreshold) {
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last_reliable_gain_ = out[i] / static_cast<float>(in[i]);
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}
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gain[i] = last_reliable_gain_;
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}
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}
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float GainChangeCalculator::CalculateDifferences(
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rtc::ArrayView<const float> values) {
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float res = 0;
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for (float f : values) {
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res += fabs(f - last_value_);
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last_value_ = f;
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}
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return res;
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}
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} // namespace webrtc
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