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#include "config.h"
#ifdef HAVE_MIT_HRTF
#include <AmbisonicCommons.h>
#include <mit_hrtf.h>
#include <mit_hrtf_lib.h>
MIT_HRTF::MIT_HRTF(unsigned i_sampleRate)
: HRTF(i_sampleRate)
{
i_len = mit_hrtf_availability(0, 0, i_sampleRate);
}
bool MIT_HRTF::get(float f_azimuth, float f_elevation, float** pfHRTF)
{
int nAzimuth = (int)RadiansToDegrees(-f_azimuth);
if(nAzimuth > 180)
nAzimuth -= 360;
int nElevation = (int)RadiansToDegrees(f_elevation);
//Get HRTFs for given position
short psHRTF[2][i_len];
unsigned ret = mit_hrtf_get(&nAzimuth, &nElevation, i_sampleRate, psHRTF[0], psHRTF[1]);
if (ret == 0)
return false;
//Convert from short to float representation
for (unsigned t = 0; t < i_len; t++)
{
pfHRTF[0][t] = psHRTF[0][t] / 32767.f;
pfHRTF[1][t] = psHRTF[1][t] / 32767.f;
}
return true;
}
#endif
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