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Merge pull request #14095 from kencooke/audio-hrtf-reset

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Audio-mixer optimizations
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John Conklin II 2018-09-28 16:34:38 -07:00 committed by GitHub
commit 1135228b3b
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1 changed files with 23 additions and 1 deletions
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24
libraries/audio/src/AudioHRTF.h
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@ -13,6 +13,7 @@
#define hifi_AudioHRTF_h #define hifi_AudioHRTF_h
#include <stdint.h> #include <stdint.h>
#include <string.h>
static const int HRTF_AZIMUTHS = 72; // 360 / 5-degree steps static const int HRTF_AZIMUTHS = 72; // 360 / 5-degree steps
static const int HRTF_TAPS = 64; // minimum-phase FIR coefficients static const int HRTF_TAPS = 64; // minimum-phase FIR coefficients
@ -56,6 +57,27 @@ public:
void setGainAdjustment(float gain) { _gainAdjust = HRTF_GAIN * gain; }; void setGainAdjustment(float gain) { _gainAdjust = HRTF_GAIN * gain; };
float getGainAdjustment() { return _gainAdjust; } float getGainAdjustment() { return _gainAdjust; }
// clear internal state, but retain settings
void reset() {
// FIR history
memset(_firState, 0, sizeof(_firState));
// integer delay history
memset(_delayState, 0, sizeof(_delayState));
// biquad history
memset(_bqState, 0, sizeof(_bqState));
// parameter history
_azimuthState = 0.0f;
_distanceState = 0.0f;
_gainState = 0.0f;
// _gainAdjust is retained
_silentState = true;
}
private: private:
AudioHRTF(const AudioHRTF&) = delete; AudioHRTF(const AudioHRTF&) = delete;
AudioHRTF& operator=(const AudioHRTF&) = delete; AudioHRTF& operator=(const AudioHRTF&) = delete;
@ -88,7 +110,7 @@ private:
// global and local gain adjustment // global and local gain adjustment
float _gainAdjust = HRTF_GAIN; float _gainAdjust = HRTF_GAIN;
bool _silentState = false; bool _silentState = true;
}; };
#endif // AudioHRTF_h #endif // AudioHRTF_h