358 lines
11 KiB
C++
358 lines
11 KiB
C++
/** @file
|
|
* @author Edouard DUPIN
|
|
* @copyright 2011, Edouard DUPIN, all right reserved
|
|
* @license MPL v2.0 (see license file)
|
|
*/
|
|
|
|
#include <audio/algo/drain/Equalizer.hpp>
|
|
#include <audio/algo/drain/debug.hpp>
|
|
#include <audio/algo/drain/BiQuad.hpp>
|
|
#include <audio/types.hpp>
|
|
|
|
|
|
// see http://www.musicdsp.org/files/Audio-EQ-Cookbook.txt
|
|
// see http://www.earlevel.com/main/2013/10/13/biquad-calculator-v2/
|
|
|
|
namespace audio {
|
|
namespace algo {
|
|
namespace drain {
|
|
class EqualizerPrivate {
|
|
protected:
|
|
float m_sampleRate;
|
|
int8_t m_nbChannel;
|
|
public:
|
|
/**
|
|
* @brief Constructor
|
|
*/
|
|
EqualizerPrivate() :
|
|
m_sampleRate(48000),
|
|
m_nbChannel(2) {
|
|
|
|
}
|
|
/**
|
|
* @brief Destructor
|
|
*/
|
|
virtual ~EqualizerPrivate() {
|
|
|
|
}
|
|
public:
|
|
/**
|
|
* @brief Reset all history of the Algo.
|
|
*/
|
|
virtual void reset() = 0;
|
|
/**
|
|
* @brief Initialize the Algorithm
|
|
* @param[in] _sampleRate Sample rate of the stream.
|
|
* @param[in] _nbChannel Number of channel in the stream.
|
|
*/
|
|
virtual void init(float _sampleRate=48000, int8_t _nbChannel=2) {
|
|
m_sampleRate = _sampleRate;
|
|
m_nbChannel = _nbChannel;
|
|
};
|
|
/**
|
|
* @brief Main input algo process.
|
|
* @param[in,out] _output Output data.
|
|
* @param[in] _input Input data.
|
|
* @param[in] _nbChunk Number of chunk in the input buffer.
|
|
*/
|
|
virtual void process(void* _output, const void* _input, size_t _nbChunk) = 0;
|
|
public:
|
|
/**
|
|
* @brief add a biquad with his value.
|
|
*/
|
|
virtual bool addBiquad(double _a0, double _a1, double _a2, double _b0, double _b1) = 0;
|
|
virtual bool addBiquad(int32_t _idChannel, double _a0, double _a1, double _a2, double _b0, double _b1) = 0;
|
|
/**
|
|
* @brief add a bi-quad value and type
|
|
* @param[in] _type Type of biquad.
|
|
* @param[in] _frequencyCut Cut Frequency. [0..sampleRate/2]
|
|
* @param[in] _qualityFactor Q factor of quality (good value of 0.707 ==> permit to not ower gain) limit [0.01 .. 10]
|
|
* @param[in] _gain Gain to apply (for notch, peak, lowShelf and highShelf) limit : -30, +30
|
|
* @param[in] _sampleRate Sample rate of the signal
|
|
*/
|
|
virtual bool addBiquad(audio::algo::drain::biQuadType _type, double _frequencyCut, double _qualityFactor, double _gain) = 0;
|
|
virtual bool addBiquad(int32_t _idChannel, audio::algo::drain::biQuadType _type, double _frequencyCut, double _qualityFactor, double _gain) = 0;
|
|
public:
|
|
// for debug & tools only
|
|
virtual etk::Vector<etk::Pair<float,float> > calculateTheory() = 0;
|
|
};
|
|
template<typename TYPE> class EqualizerPrivateType : public audio::algo::drain::EqualizerPrivate {
|
|
protected:
|
|
etk::Vector<etk::Vector<audio::algo::drain::BiQuad<TYPE> > > m_biquads;
|
|
public:
|
|
/**
|
|
* @brief Constructor
|
|
*/
|
|
EqualizerPrivateType() {
|
|
|
|
}
|
|
/**
|
|
* @brief Destructor
|
|
*/
|
|
virtual ~EqualizerPrivateType() {
|
|
|
|
}
|
|
virtual void reset() {
|
|
for (size_t jjj=0; jjj<m_biquads.size(); ++jjj) {
|
|
for (size_t iii=0; iii<m_biquads[jjj].size(); ++iii) {
|
|
m_biquads[jjj][iii].reset();
|
|
}
|
|
}
|
|
}
|
|
virtual void init(float _sampleRate=48000, int8_t _nbChannel=2) {
|
|
audio::algo::drain::EqualizerPrivate::init(_sampleRate, _nbChannel);
|
|
m_biquads.clear();
|
|
m_biquads.resize(_nbChannel);
|
|
}
|
|
virtual void process(void* _output, const void* _input, size_t _nbChunk) {
|
|
for (size_t jjj=0; jjj<m_nbChannel; ++jjj) {
|
|
// get pointer on data:
|
|
const TYPE* input = reinterpret_cast<const TYPE*>(_input);
|
|
TYPE* output = reinterpret_cast<TYPE*>(_output);
|
|
// move to sample offset:
|
|
input += jjj;
|
|
output += jjj;
|
|
for (size_t iii=0; iii<m_biquads[jjj].size(); ++iii) {
|
|
m_biquads[jjj][iii].process(input, output, _nbChunk, m_nbChannel, m_nbChannel);
|
|
}
|
|
}
|
|
}
|
|
virtual bool addBiquad(double _a0, double _a1, double _a2, double _b0, double _b1) {
|
|
audio::algo::drain::BiQuad<TYPE> bq;
|
|
bq.setBiquadCoef(_a0, _a1, _a2, _b0, _b1);
|
|
// add this bequad for every Channel:
|
|
for (size_t iii=0; iii<m_biquads.size(); ++iii) {
|
|
m_biquads[iii].pushBack(bq);
|
|
}
|
|
return true;
|
|
}
|
|
virtual bool addBiquad(audio::algo::drain::biQuadType _type, double _frequencyCut, double _qualityFactor, double _gain) {
|
|
audio::algo::drain::BiQuad<TYPE> bq;
|
|
bq.setBiquad(_type, _frequencyCut, _qualityFactor, _gain, m_sampleRate);
|
|
// add this bequad for every Channel:
|
|
for (size_t iii=0; iii<m_biquads.size(); ++iii) {
|
|
m_biquads[iii].pushBack(bq);
|
|
}
|
|
return true;
|
|
}
|
|
virtual bool addBiquad(int32_t _idChannel, double _a0, double _a1, double _a2, double _b0, double _b1) {
|
|
audio::algo::drain::BiQuad<TYPE> bq;
|
|
bq.setBiquadCoef(_a0, _a1, _a2, _b0, _b1);
|
|
if (_idChannel<m_biquads.size()) {
|
|
m_biquads[_idChannel].pushBack(bq);
|
|
}
|
|
return true;
|
|
}
|
|
virtual bool addBiquad(int32_t _idChannel, audio::algo::drain::biQuadType _type, double _frequencyCut, double _qualityFactor, double _gain) {
|
|
audio::algo::drain::BiQuad<TYPE> bq;
|
|
bq.setBiquad(_type, _frequencyCut, _qualityFactor, _gain, m_sampleRate);
|
|
if (_idChannel<m_biquads.size()) {
|
|
m_biquads[_idChannel].pushBack(bq);
|
|
}
|
|
return true;
|
|
}
|
|
virtual etk::Vector<etk::Pair<float,float> > calculateTheory() {
|
|
etk::Vector<etk::Pair<float,float> > out;
|
|
for (size_t iii=0; iii<m_biquads[0].size(); ++iii) {
|
|
if (iii == 0) {
|
|
out = m_biquads[0][iii].calculateTheory(m_sampleRate);
|
|
} else {
|
|
etk::Vector<etk::Pair<float,float> > tmp = m_biquads[0][iii].calculateTheory(m_sampleRate);
|
|
for (size_t jjj=0; jjj< out.size(); ++jjj) {
|
|
out[jjj].second += tmp[jjj].second;
|
|
}
|
|
}
|
|
}
|
|
return out;
|
|
}
|
|
};
|
|
}
|
|
}
|
|
}
|
|
|
|
audio::algo::drain::Equalizer::Equalizer() {
|
|
|
|
}
|
|
|
|
audio::algo::drain::Equalizer::~Equalizer() {
|
|
|
|
}
|
|
|
|
void audio::algo::drain::Equalizer::init(float _sampleRate, int8_t _nbChannel, enum audio::format _format) {
|
|
switch (_format) {
|
|
default:
|
|
AA_DRAIN_CRITICAL("Request format for equalizer that not exist ... : " << _format);
|
|
break;
|
|
case audio::format_double:
|
|
{
|
|
m_private = ememory::makeShared<EqualizerPrivateType<audio::double_t> >();
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("can not allocate private data...");
|
|
return;
|
|
}
|
|
m_private->init(_sampleRate, _nbChannel);
|
|
}
|
|
break;
|
|
case audio::format_float:
|
|
{
|
|
m_private = ememory::makeShared<EqualizerPrivateType<audio::float_t> >();
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("can not allocate private data...");
|
|
return;
|
|
}
|
|
m_private->init(_sampleRate, _nbChannel);
|
|
}
|
|
break;
|
|
case audio::format_int8:
|
|
{
|
|
m_private = ememory::makeShared<EqualizerPrivateType<audio::int8_8_t> >();
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("can not allocate private data...");
|
|
return;
|
|
}
|
|
m_private->init(_sampleRate, _nbChannel);
|
|
}
|
|
break;
|
|
case audio::format_int8_on_int16:
|
|
{
|
|
m_private = ememory::makeShared<EqualizerPrivateType<audio::int8_16_t> >();
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("can not allocate private data...");
|
|
return;
|
|
}
|
|
m_private->init(_sampleRate, _nbChannel);
|
|
}
|
|
break;
|
|
case audio::format_int16:
|
|
{
|
|
m_private = ememory::makeShared<EqualizerPrivateType<audio::int16_16_t> >();
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("can not allocate private data...");
|
|
return;
|
|
}
|
|
m_private->init(_sampleRate, _nbChannel);
|
|
}
|
|
break;
|
|
case audio::format_int16_on_int32:
|
|
{
|
|
m_private = ememory::makeShared<EqualizerPrivateType<audio::int16_32_t> >();
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("can not allocate private data...");
|
|
return;
|
|
}
|
|
m_private->init(_sampleRate, _nbChannel);
|
|
}
|
|
break;
|
|
case audio::format_int24_on_int32:
|
|
{
|
|
m_private = ememory::makeShared<EqualizerPrivateType<audio::int24_32_t> >();
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("can not allocate private data...");
|
|
return;
|
|
}
|
|
m_private->init(_sampleRate, _nbChannel);
|
|
}
|
|
break;
|
|
case audio::format_int32:
|
|
{
|
|
m_private = ememory::makeShared<EqualizerPrivateType<audio::int32_32_t> >();
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("can not allocate private data...");
|
|
return;
|
|
}
|
|
m_private->init(_sampleRate, _nbChannel);
|
|
}
|
|
break;
|
|
case audio::format_int32_on_int64:
|
|
{
|
|
m_private = ememory::makeShared<EqualizerPrivateType<audio::int32_64_t> >();
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("can not allocate private data...");
|
|
return;
|
|
}
|
|
m_private->init(_sampleRate, _nbChannel);
|
|
}
|
|
break;
|
|
case audio::format_int64:
|
|
{
|
|
m_private = ememory::makeShared<EqualizerPrivateType<audio::int32_64_t> >();
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("can not allocate private data...");
|
|
return;
|
|
}
|
|
m_private->init(_sampleRate, _nbChannel);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
void audio::algo::drain::Equalizer::reset() {
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("Equalizer does not init ...");
|
|
return;
|
|
}
|
|
m_private->reset();
|
|
}
|
|
|
|
etk::Vector<enum audio::format> audio::algo::drain::Equalizer::getSupportedFormat() {
|
|
etk::Vector<enum audio::format> out = audio::algo::drain::Equalizer::getNativeSupportedFormat();
|
|
|
|
return out;
|
|
}
|
|
|
|
etk::Vector<enum audio::format> audio::algo::drain::Equalizer::getNativeSupportedFormat() {
|
|
etk::Vector<enum audio::format> out;
|
|
out.pushBack(audio::format_float);
|
|
return out;
|
|
}
|
|
|
|
void audio::algo::drain::Equalizer::process(void* _output, const void* _input, size_t _nbChunk) {
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("Equalizer does not init ...");
|
|
return;
|
|
}
|
|
m_private->process(_output, _input, _nbChunk);
|
|
}
|
|
|
|
bool audio::algo::drain::Equalizer::addBiquad(double _a0, double _a1, double _a2, double _b0, double _b1) {
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("Equalizer does not init ...");
|
|
return false;
|
|
}
|
|
return m_private->addBiquad(_a0, _a1, _a2, _b0, _b1);
|
|
}
|
|
bool audio::algo::drain::Equalizer::addBiquad(int32_t _idChannel, double _a0, double _a1, double _a2, double _b0, double _b1) {
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("Equalizer does not init ...");
|
|
return false;
|
|
}
|
|
return m_private->addBiquad(_idChannel, _a0, _a1, _a2, _b0, _b1);
|
|
}
|
|
|
|
bool audio::algo::drain::Equalizer::addBiquad(audio::algo::drain::biQuadType _type, double _frequencyCut, double _qualityFactor, double _gain) {
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("Equalizer does not init ...");
|
|
return false;
|
|
}
|
|
return m_private->addBiquad(_type, _frequencyCut, _qualityFactor, _gain);
|
|
}
|
|
bool audio::algo::drain::Equalizer::addBiquad(int32_t _idChannel, audio::algo::drain::biQuadType _type, double _frequencyCut, double _qualityFactor, double _gain) {
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("Equalizer does not init ...");
|
|
return false;
|
|
}
|
|
return m_private->addBiquad(_idChannel, _type, _frequencyCut, _qualityFactor, _gain);
|
|
}
|
|
|
|
etk::Vector<etk::Pair<float,float> > audio::algo::drain::Equalizer::calculateTheory() {
|
|
if (m_private == null) {
|
|
AA_DRAIN_ERROR("Equalizer does not init ...");
|
|
return etk::Vector<etk::Pair<float,float> >();
|
|
}
|
|
return m_private->calculateTheory();
|
|
}
|
|
|
|
|
|
|
|
|
|
|