boo/lib/audiodev/AudioVoice.hpp

116 lines
3.6 KiB
C++

#ifndef BOO_AUDIOVOICE_HPP
#define BOO_AUDIOVOICE_HPP
#include <soxr.h>
#include <list>
#include "boo/audiodev/IAudioVoice.hpp"
#include "AudioMatrix.hpp"
namespace boo
{
class BaseAudioVoiceEngine;
struct AudioVoiceEngineMixInfo;
class IAudioMix;
class AudioVoice : public IAudioVoice
{
friend class BaseAudioVoiceEngine;
friend class AudioSubmix;
protected:
/* Mixer-engine relationships */
BaseAudioVoiceEngine& m_root;
IAudioMix& m_parent;
std::list<AudioVoice*>::iterator m_parentIt;
bool m_bound = false;
void bindVoice(std::list<AudioVoice*>::iterator pIt)
{
m_bound = true;
m_parentIt = pIt;
}
/* Callback (audio source) */
IAudioVoiceCallback* m_cb;
/* Sample-rate converter */
soxr_t m_src = nullptr;
double m_sampleRateIn;
double m_sampleRateOut;
size_t m_5msFrames;
bool m_dynamicRate;
/* Running bool */
bool m_running = false;
/* Deferred sample-rate reset */
bool m_resetSampleRate = false;
double m_deferredSampleRate;
virtual void _resetSampleRate(double sampleRate)=0;
/* Deferred pitch ratio set */
bool m_setPitchRatio = false;
double m_pitchRatio = 1.0;
bool m_slew = false;
void _setPitchRatio(double ratio, bool slew);
/* Mid-pump update */
void _midUpdate();
virtual size_t pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo, size_t frames, int16_t* buf)=0;
virtual size_t pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo, size_t frames, int32_t* buf)=0;
virtual size_t pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo, size_t frames, float* buf)=0;
AudioVoice(BaseAudioVoiceEngine& root, IAudioMix& parent, IAudioVoiceCallback* cb, bool dynamicRate);
public:
~AudioVoice();
void resetSampleRate(double sampleRate);
void setPitchRatio(double ratio, bool slew);
void start();
void stop();
void unbindVoice();
};
class AudioVoiceMono : public AudioVoice
{
AudioMatrixMono m_matrix;
void _resetSampleRate(double sampleRate);
static size_t SRCCallback(AudioVoiceMono* ctx,
int16_t** data, size_t requestedLen);
size_t pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo, size_t frames, int16_t* buf);
size_t pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo, size_t frames, int32_t* buf);
size_t pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo, size_t frames, float* buf);
public:
AudioVoiceMono(BaseAudioVoiceEngine& root, IAudioMix& parent, IAudioVoiceCallback* cb,
double sampleRate, bool dynamicRate);
void setDefaultMatrixCoefficients();
void setMonoMatrixCoefficients(const float coefs[8]);
void setStereoMatrixCoefficients(const float coefs[8][2]);
};
class AudioVoiceStereo : public AudioVoice
{
AudioMatrixStereo m_matrix;
void _resetSampleRate(double sampleRate);
static size_t SRCCallback(AudioVoiceStereo* ctx,
int16_t** data, size_t requestedLen);
size_t pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo, size_t frames, int16_t* buf);
size_t pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo, size_t frames, int32_t* buf);
size_t pumpAndMix(const AudioVoiceEngineMixInfo& mixInfo, size_t frames, float* buf);
public:
AudioVoiceStereo(BaseAudioVoiceEngine& root, IAudioMix& parent, IAudioVoiceCallback* cb,
double sampleRate, bool dynamicRate);
void setDefaultMatrixCoefficients();
void setMonoMatrixCoefficients(const float coefs[8]);
void setStereoMatrixCoefficients(const float coefs[8][2]);
};
}
#endif // BOO_AUDIOVOICE_HPP