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Overhauled audio system, now with internal mixing and sample-rate-conversion

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This commit is contained in:
Jack Andersen
2016-03-23 14:01:57 -10:00
parent 5b275866a7
commit 1eb46301c0
13 changed files with 924 additions and 341 deletions
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59
lib/audiodev/AudioMatrix.hpp Normal file
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#ifndef BOO_AUDIOMATRIX_HPP
#define BOO_AUDIOMATRIX_HPP
#include "boo/audiodev/IAudioVoice.hpp"
#include <vector>
#include <stdint.h>
namespace boo
{
struct AudioVoiceEngineMixInfo;
class AudioMatrixMono
{
float m_coefs[8];
public:
AudioMatrixMono() {setDefaultMatrixCoefficients(AudioChannelSet::Stereo);}
void setDefaultMatrixCoefficients(AudioChannelSet acSet);
void setMatrixCoefficients(const float coefs[8])
{
for (int i=0 ; i<8 ; ++i)
m_coefs[i] = coefs[i];
}
void mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
const int16_t* dataIn, int16_t* dataOut, size_t samples) const;
void mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
const int32_t* dataIn, int32_t* dataOut, size_t samples) const;
void mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
const float* dataIn, float* dataOut, size_t samples) const;
};
class AudioMatrixStereo
{
float m_coefs[8][2];
public:
AudioMatrixStereo() {setDefaultMatrixCoefficients(AudioChannelSet::Stereo);}
void setDefaultMatrixCoefficients(AudioChannelSet acSet);
void setMatrixCoefficients(const float coefs[8][2])
{
for (int i=0 ; i<8 ; ++i)
{
m_coefs[i][0] = coefs[i][0];
m_coefs[i][1] = coefs[i][1];
}
}
void mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
const int16_t* dataIn, int16_t* dataOut, size_t frames) const;
void mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
const int32_t* dataIn, int32_t* dataOut, size_t frames) const;
void mixStereoSampleData(const AudioVoiceEngineMixInfo& info,
const float* dataIn, float* dataOut, size_t frames) const;
};
}
#endif // BOO_AUDIOMATRIX_HPP