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new cspot/bell

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This commit is contained in:
philippe44
2023-05-06 23:50:26 +02:00
parent e0e7e718ba
commit 8bad480112
163 changed files with 6611 additions and 6739 deletions
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14
components/spotify/cspot/bell/main/audio-dsp/Compressor.cpp
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@@ -1,5 +1,7 @@
#include "Compressor.h"
#include <cstdlib> // for abs
using namespace bell;
float log2f_approx(float X) {
@@ -19,11 +21,11 @@ float log2f_approx(float X) {
Compressor::Compressor() {}
void Compressor::sumChannels(std::unique_ptr<StreamInfo> &data) {
void Compressor::sumChannels(std::unique_ptr<StreamInfo>& data) {
tmp.resize(data->numSamples);
for (int i = 0; i < data->numSamples; i++) {
float sum = 0.0f;
for (auto &channel : channels) {
for (auto& channel : channels) {
sum += data->data[channel][i];
}
tmp[i] = sum;
@@ -31,7 +33,7 @@ void Compressor::sumChannels(std::unique_ptr<StreamInfo> &data) {
}
void Compressor::calLoudness() {
for (auto &value : tmp) {
for (auto& value : tmp) {
value = 20 * log10f_fast(std::abs(value) + 1.0e-9f);
if (value >= lastLoudness) {
value = attack * lastLoudness + (1.0 - attack) * value;
@@ -44,7 +46,7 @@ void Compressor::calLoudness() {
}
void Compressor::calGain() {
for (auto &value : tmp) {
for (auto& value : tmp) {
if (value > threshold) {
value = -(value - threshold) * (factor - 1.0) / factor;
} else {
@@ -58,9 +60,9 @@ void Compressor::calGain() {
}
}
void Compressor::applyGain(std::unique_ptr<StreamInfo> &data) {
void Compressor::applyGain(std::unique_ptr<StreamInfo>& data) {
for (int i = 0; i < data->numSamples; i++) {
for (auto &channel : channels) {
for (auto& channel : channels) {
data->data[channel][i] *= tmp[i];
}
}