#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <ctype.h>
#include <math.h>
#include "AL/al.h"

Macros
#define	DEFAULT_EQUALIZE (1)

#define	DEFAULT_LIMIT (24.0)

#define	DEFAULT_SURFACE (1)

#define	DEFAULT_TRUNCSIZE (32)

#define	EPSILON (1e-15)

#define	FOURCC_DATA (0x61746164)

#define	FOURCC_FMT (0x20746D66)

#define	FOURCC_LIST (0x5453494C)

#define	FOURCC_RIFF (0x46464952)

#define	FOURCC_RIFX (0x58464952)

#define	FOURCC_SLNT (0x746E6C73)

#define	FOURCC_WAVE (0x45564157)

#define	FOURCC_WAVL (0x6C766177)

#define	M_PI (3.14159265358979323846)

#define	MAX_ASCII_BITS (32)

#define	MAX_AZ_COUNT (128)

#define	MAX_BIN_SIZE (4)

#define	MAX_DISTANCE (2.5)

#define	MAX_EV_COUNT (128)

#define	MAX_FFTSIZE (16384)

#define	MAX_HRTD (63.0)

#define	MAX_IDENT_LEN (16)

#define	MAX_LIMIT (120.0)

#define	MAX_PATH_LEN (256)

#define	MAX_POINTS (8192)

#define	MAX_RADIUS (0.15)

#define	MAX_RATE (96000)

#define	MAX_TRUNCSIZE (128)

#define	MAX_WAVE_CHANNELS (65535)

#define	MHR_FORMAT ("MinPHR01")

#define	MIN_ASCII_BITS (16)

#define	MIN_AZ_COUNT (1)

#define	MIN_BIN_BITS (16)

#define	MIN_BIN_SIZE (2)

#define	MIN_DISTANCE (0.5)

#define	MIN_EV_COUNT (5)

#define	MIN_FFTSIZE (512)

#define	MIN_LIMIT (2.0)

#define	MIN_POINTS (16)

#define	MIN_RADIUS (0.05)

#define	MIN_RATE (32000)

#define	MIN_TRUNCSIZE (8)

#define	MOD_TRUNCSIZE (8)

#define	TR_LOAD_SIZE (TR_RING_SIZE >> 2)

#define	TR_RING_BITS (16)

#define	TR_RING_MASK (TR_RING_SIZE - 1)

#define	TR_RING_SIZE (1 << TR_RING_BITS)

#define	WAVE_FORMAT_EXTENSIBLE (0xFFFE)

#define	WAVE_FORMAT_IEEE_FLOAT (0x0003)

#define	WAVE_FORMAT_PCM (0x0001)

Typedefs
typedef enum ByteOrderT	ByteOrderT

typedef enum ElementTypeT	ElementTypeT

typedef struct HrirDataT	HrirDataT

typedef ALint	int4

typedef enum OutputFormatT	OutputFormatT

typedef struct ResamplerT	ResamplerT

typedef enum SourceFormatT	SourceFormatT

typedef struct SourceRefT	SourceRefT

typedef struct TokenReaderT	TokenReaderT

typedef unsigned int	uint

typedef ALubyte	uint1

typedef ALuint	uint4

Enumerations
enum	ByteOrderT { BO_NONE = 0, BO_LITTLE, BO_BIG }

enum	ElementTypeT { ET_NONE = 0, ET_INT, ET_FP }

enum	OutputFormatT { OF_NONE = 0, OF_MHR, OF_TABLE }

enum	SourceFormatT { SF_NONE = 0, SF_WAVE, SF_BIN_LE, SF_BIN_BE, SF_ASCII }

Functions
static void	AverageHrirMagnitude (const double hrir, const double f, const uint ei, const uint ai, const HrirDataT hData)

static double	BesselI_0 (const double x)

static void	CalcAzIndices (const HrirDataT hData, const uint ei, const double az, uint j0, uint j1, double jf)

static double	CalcKaiserBeta (const double rejection)

static uint	CalcKaiserOrder (const double rejection, const double transition)

static double	CalcLTD (const double ev, const double az, const double rad, const double dist)

static void	CalculateDfWeights (const HrirDataT hData, double weights)

static void	CalculateDiffuseFieldAverage (const HrirDataT hData, const int weighted, const double limit, double dfa)

static void	CalculateHrtds (HrirDataT *hData)

static double	Clamp (const double val, const double lower, const double upper)

static double	ComplexAbs (const double r, const double i)

static void	ComplexExp (const double inR, const double inI, double outR, double outI)

static void	ComplexMul (const double aR, const double aI, const double bR, const double bI, double outR, double outI)

static double *	CreateArray (const size_t n)

static void	DestroyArray (const double *a)

static void	DiffuseFieldEqualize (const double dfa, const HrirDataT hData)

static void	FftArrange (const uint n, const double inR, const double inI, double outR, double outI)

static void	FftForward (const uint n, const double inR, const double inI, double outR, double outI)

static void	FftInverse (const uint n, const double inR, const double inI, double outR, double outI)

static void	FftSummation (const uint n, const double s, double re, double im)

static uint	Gcd (const uint a, const uint b)

static void	Hilbert (const uint n, const double in, double outR, double *outI)

static int	HpTpdfDither (const double in, int *hpHist)

static double	Kaiser (const double b, const double k)

static double	Lerp (const double a, const double b, const double f)

static void	LimitMagnitudeResponse (const uint n, const double limit, const double in, double out)

static int	LoadAsciiSource (FILE fp, const SourceRefT src, const uint n, double *hrir)

static int	LoadBinarySource (FILE fp, const SourceRefT src, const ByteOrderT order, const uint n, double *hrir)

static int	LoadSource (SourceRefT src, const uint hrirRate, const uint n, double hrir)

static int	LoadWaveSource (FILE fp, SourceRefT src, const uint hrirRate, const uint n, double *hrir)

static void	MagnitudeResponse (const uint n, const double inR, const double inI, double *out)

int	main (const int argc, const char *argv[])

static ElementTypeT	MatchElementType (const char *ident)

static SourceFormatT	MatchSourceFormat (const char *ident)

static void	MinimumPhase (const uint n, const double in, double outR, double *outI)

static void	NormalizeHrirs (const HrirDataT *hData)

static int	ProcessDefinition (const char inName, const uint outRate, const uint fftSize, const int equalize, const int surface, const double limit, const uint truncSize, const OutputFormatT outFormat, const char outName)

static int	ProcessMetrics (TokenReaderT tr, const uint fftSize, const uint truncSize, HrirDataT hData)

static int	ProcessSources (TokenReaderT tr, HrirDataT hData)

static int	ReadAsciiAsDouble (TokenReaderT tr, const char filename, const ElementTypeT type, const uint bits, double *out)

static int	ReadBin4 (FILE fp, const char filename, const ByteOrderT order, const uint bytes, uint4 *out)

static int	ReadBin8 (FILE fp, const char filename, const ByteOrderT order, uint8 *out)

static int	ReadBinAsDouble (FILE fp, const char filename, const ByteOrderT order, const ElementTypeT type, const uint bytes, const int bits, double *out)

static int	ReadIndexPair (TokenReaderT tr, const HrirDataT hData, uint ei, uint ai)

static int	ReadSourceRef (TokenReaderT tr, SourceRefT src)

static int	ReadWaveData (FILE fp, const SourceRefT src, const ByteOrderT order, const uint n, double *hrir)

static int	ReadWaveFormat (FILE fp, const ByteOrderT order, const uint hrirRate, SourceRefT src)

static int	ReadWaveList (FILE fp, const SourceRefT src, const ByteOrderT order, const uint n, double *hrir)

static void	ReconstructHrirs (const HrirDataT *hData)

static void	ResampleHrirs (const uint rate, HrirDataT *hData)

static void	ResamplerClear (ResamplerT *rs)

static void	ResamplerRun (ResamplerT rs, const uint inN, const double in, const uint outN, double *out)

static void	ResamplerSetup (ResamplerT *rs, const uint srcRate, const uint dstRate)

static double	Sinc (const double x)

static double	SincFilter (const int l, const double b, const double gain, const double cutoff, const int i)

static int	StoreMhr (const HrirDataT hData, const char filename)

static int	StoreTable (const HrirDataT hData, const char filename)

static int	StrSubst (const char in, const char pat, const char rep, const size_t maxLen, char out)

static void	SynthesizeHrirs (HrirDataT *hData)

static void	TrError (const TokenReaderT tr, const char format,...)

static void	TrErrorAt (const TokenReaderT tr, uint line, uint column, const char format,...)

static void	TrErrorVA (const TokenReaderT tr, uint line, uint column, const char format, va_list argPtr)

static void	TrIndication (TokenReaderT tr, uint line, uint *column)

static int	TrIsOperator (TokenReaderT tr, const char op)

static int	TrLoad (TokenReaderT *tr)

static int	TrReadFloat (TokenReaderT tr, const double loBound, const double hiBound, double value)

static int	TrReadIdent (TokenReaderT tr, const uint maxLen, char ident)

static int	TrReadInt (TokenReaderT tr, const int loBound, const int hiBound, int value)

static int	TrReadOperator (TokenReaderT tr, const char op)

static int	TrReadString (TokenReaderT tr, const uint maxLen, char text)

static void	TrSetup (FILE fp, const char filename, TokenReaderT *tr)

static void	TrSkipLine (TokenReaderT *tr)

static int	TrSkipWhitespace (TokenReaderT *tr)

static int	WriteAscii (const char out, FILE fp, const char *filename)

static int	WriteBin4 (const ByteOrderT order, const uint bytes, const uint4 in, FILE fp, const char filename)

Macro Definition Documentation

#define DEFAULT_EQUALIZE (1)

Definition at line 161 of file makehrtf.c.

Referenced by main().

#define DEFAULT_LIMIT (24.0)

Definition at line 163 of file makehrtf.c.

Referenced by main().

#define DEFAULT_SURFACE (1)

Definition at line 162 of file makehrtf.c.

Referenced by main().

#define DEFAULT_TRUNCSIZE (32)

Definition at line 164 of file makehrtf.c.

Referenced by main().

#define EPSILON (1e-15)

Definition at line 83 of file makehrtf.c.

Referenced by CalculateDiffuseFieldAverage(), MagnitudeResponse(), MinimumPhase(), and Sinc().

#define FOURCC_DATA (0x61746164)

Definition at line 171 of file makehrtf.c.

Referenced by ReadWaveList().

#define FOURCC_FMT (0x20746D66)

Definition at line 170 of file makehrtf.c.

Referenced by ReadWaveFormat().

#define FOURCC_LIST (0x5453494C)

Definition at line 172 of file makehrtf.c.

Referenced by ReadWaveList().

#define FOURCC_RIFF (0x46464952)

Definition at line 167 of file makehrtf.c.

Referenced by LoadWaveSource().

#define FOURCC_RIFX (0x58464952)

Definition at line 168 of file makehrtf.c.

Referenced by LoadWaveSource().

#define FOURCC_SLNT (0x746E6C73)

Definition at line 174 of file makehrtf.c.

Referenced by ReadWaveList().

#define FOURCC_WAVE (0x45564157)

Definition at line 169 of file makehrtf.c.

Referenced by LoadWaveSource().

#define FOURCC_WAVL (0x6C766177)

Definition at line 173 of file makehrtf.c.

Referenced by ReadWaveList().

#define M_PI (3.14159265358979323846)

Definition at line 75 of file makehrtf.c.

Referenced by CalcAzIndices(), CalcKaiserOrder(), CalcLTD(), CalculateDfWeights(), CalculateHrtds(), FftSummation(), Sinc(), and SynthesizeHrirs().

#define MAX_ASCII_BITS (32)

Definition at line 142 of file makehrtf.c.

Referenced by ReadSourceRef().

#define MAX_AZ_COUNT (128)

Definition at line 115 of file makehrtf.c.

Referenced by ProcessMetrics().

#define MAX_BIN_SIZE (4)

Definition at line 133 of file makehrtf.c.

Referenced by ReadSourceRef().

#define MAX_DISTANCE (2.5)

Definition at line 124 of file makehrtf.c.

Referenced by ProcessMetrics().

#define MAX_EV_COUNT (128)

Definition at line 111 of file makehrtf.c.

Referenced by ProcessMetrics().

#define MAX_FFTSIZE (16384)

Definition at line 146 of file makehrtf.c.

Referenced by main().

#define MAX_HRTD (63.0)

Definition at line 182 of file makehrtf.c.

Referenced by StoreMhr(), and StoreTable().

#define MAX_IDENT_LEN (16)

Definition at line 95 of file makehrtf.c.

Referenced by ProcessMetrics(), and ReadSourceRef().

#define MAX_LIMIT (120.0)

Definition at line 150 of file makehrtf.c.

Referenced by main().

#define MAX_PATH_LEN (256)

Definition at line 98 of file makehrtf.c.

Referenced by ProcessDefinition(), and ReadSourceRef().

#define MAX_POINTS (8192)

Definition at line 107 of file makehrtf.c.

Referenced by ProcessMetrics().

#define MAX_RADIUS (0.15)

Definition at line 119 of file makehrtf.c.

Referenced by ProcessMetrics().

#define MAX_RATE (96000)

Definition at line 103 of file makehrtf.c.

Referenced by main(), and ProcessMetrics().

#define MAX_TRUNCSIZE (128)

Definition at line 154 of file makehrtf.c.

Referenced by main().

#define MAX_WAVE_CHANNELS (65535)

Definition at line 128 of file makehrtf.c.

Referenced by ReadSourceRef().

#define MHR_FORMAT ("MinPHR01")

Definition at line 186 of file makehrtf.c.

Referenced by StoreMhr().

#define MIN_ASCII_BITS (16)

Definition at line 141 of file makehrtf.c.

Referenced by ReadSourceRef().

#define MIN_AZ_COUNT (1)

Definition at line 114 of file makehrtf.c.

Referenced by ProcessMetrics().

#define MIN_BIN_BITS (16)

Definition at line 137 of file makehrtf.c.

Referenced by ReadSourceRef().

#define MIN_BIN_SIZE (2)

Definition at line 132 of file makehrtf.c.

Referenced by ReadSourceRef().

#define MIN_DISTANCE (0.5)

Definition at line 123 of file makehrtf.c.

Referenced by ProcessMetrics().

#define MIN_EV_COUNT (5)

Definition at line 110 of file makehrtf.c.

Referenced by ProcessMetrics().

#define MIN_FFTSIZE (512)

Definition at line 145 of file makehrtf.c.

Referenced by main().

#define MIN_LIMIT (2.0)

Definition at line 149 of file makehrtf.c.

Referenced by main().

#define MIN_POINTS (16)

Definition at line 106 of file makehrtf.c.

Referenced by ProcessMetrics().

#define MIN_RADIUS (0.05)

Definition at line 118 of file makehrtf.c.

Referenced by ProcessMetrics().

#define MIN_RATE (32000)

Definition at line 102 of file makehrtf.c.

Referenced by main(), and ProcessMetrics().

#define MIN_TRUNCSIZE (8)

Definition at line 153 of file makehrtf.c.

Referenced by main().

#define MOD_TRUNCSIZE (8)

Definition at line 158 of file makehrtf.c.

Referenced by main().

#define TR_LOAD_SIZE (TR_RING_SIZE >> 2)

Definition at line 91 of file makehrtf.c.

Referenced by TrLoad().

#define TR_RING_BITS (16)

Definition at line 86 of file makehrtf.c.

#define TR_RING_MASK (TR_RING_SIZE - 1)

Definition at line 88 of file makehrtf.c.

Referenced by TrIsOperator(), TrLoad(), TrReadFloat(), TrReadIdent(), TrReadInt(), TrReadOperator(), TrReadString(), TrSkipLine(), and TrSkipWhitespace().

#define TR_RING_SIZE (1 << TR_RING_BITS)

Definition at line 87 of file makehrtf.c.

Referenced by TrLoad().

#define WAVE_FORMAT_EXTENSIBLE (0xFFFE)

Definition at line 179 of file makehrtf.c.

Referenced by DSoundOpenCapture(), DSoundResetPlayback(), MakeExtensible(), and ReadWaveFormat().

#define WAVE_FORMAT_IEEE_FLOAT (0x0003)

Definition at line 178 of file makehrtf.c.

Referenced by ReadWaveFormat().

#define WAVE_FORMAT_PCM (0x0001)

Definition at line 177 of file makehrtf.c.

Referenced by DSoundOpenCapture(), DSoundResetPlayback(), MakeExtensible(), ReadWaveFormat(), WinMMOpenCapture(), WinMMOpenPlayback(), and WinMMResetPlayback().

Typedef Documentation

typedef enum ByteOrderT ByteOrderT

Definition at line 239 of file makehrtf.c.

typedef enum ElementTypeT ElementTypeT

Definition at line 241 of file makehrtf.c.

typedef struct HrirDataT HrirDataT

Definition at line 246 of file makehrtf.c.

typedef ALint int4

Definition at line 224 of file makehrtf.c.

typedef enum OutputFormatT OutputFormatT

Definition at line 242 of file makehrtf.c.

typedef struct ResamplerT ResamplerT

Definition at line 247 of file makehrtf.c.

typedef enum SourceFormatT SourceFormatT

Definition at line 240 of file makehrtf.c.

typedef struct SourceRefT SourceRefT

Definition at line 245 of file makehrtf.c.

typedef struct TokenReaderT TokenReaderT

Definition at line 244 of file makehrtf.c.

typedef unsigned int uint

Definition at line 219 of file makehrtf.c.

typedef ALubyte uint1

Definition at line 222 of file makehrtf.c.

typedef ALuint uint4

Definition at line 225 of file makehrtf.c.

Enumeration Type Documentation

enum ByteOrderT

Enumerator
BO_NONE
BO_LITTLE
BO_BIG

Definition at line 189 of file makehrtf.c.

enum ElementTypeT

Enumerator
ET_NONE
ET_INT
ET_FP

Definition at line 205 of file makehrtf.c.

enum OutputFormatT

Enumerator
OF_NONE
OF_MHR
OF_TABLE

Definition at line 212 of file makehrtf.c.

enum SourceFormatT

Enumerator
SF_NONE
SF_WAVE
SF_BIN_LE
SF_BIN_BE
SF_ASCII

Definition at line 196 of file makehrtf.c.

Function Documentation

static void AverageHrirMagnitude	(	const double *	hrir,
		const double	f,
		const uint	ei,
		const uint	ai,
		const HrirDataT *	hData
	)

static

Definition at line 1688 of file makehrtf.c.

References CreateArray(), DestroyArray(), FftForward(), i, j, Lerp(), m, MagnitudeResponse(), and NULL.

Referenced by ProcessSources().

static double BesselI_0 ( const double x )

static

Definition at line 1034 of file makehrtf.c.

References k, and term.

Referenced by Kaiser().

static void CalcAzIndices	(	const HrirDataT *	hData,
		const uint	ei,
		const double	az,
		uint *	j0,
		uint *	j1,
		double *	jf
	)

static

Definition at line 1858 of file makehrtf.c.

References floor(), and M_PI.

Referenced by SynthesizeHrirs().

static double CalcKaiserBeta ( const double rejection )

static

Definition at line 1110 of file makehrtf.c.

Referenced by ResamplerSetup().

static uint CalcKaiserOrder	(	const double	rejection,
		const double	transition
	)

static

Definition at line 1100 of file makehrtf.c.

References M_PI.

Referenced by ResamplerSetup().

static double CalcLTD	(	const double	ev,
		const double	az,
		const double	rad,
		const double	dist
	)

static

Definition at line 1957 of file makehrtf.c.

References cos(), M_PI, and sin().

Referenced by CalculateHrtds().

static void CalculateDfWeights	(	const HrirDataT *	hData,
		double *	weights
	)

static

Definition at line 1717 of file makehrtf.c.

References M_PI, and sin().

Referenced by CalculateDiffuseFieldAverage().

static void CalculateDiffuseFieldAverage	(	const HrirDataT *	hData,
		const int	weighted,
		const double	limit,
		double *	dfa
	)

static

Definition at line 1752 of file makehrtf.c.

References CalculateDfWeights(), CreateArray(), DestroyArray(), EPSILON, i, j, LimitMagnitudeResponse(), m, and NULL.

Referenced by ProcessDefinition().

static void CalculateHrtds ( HrirDataT * hData )

static

Definition at line 1971 of file makehrtf.c.

References CalcLTD(), e, j, and M_PI.

Referenced by ProcessDefinition().

static double Clamp	(	const double	val,
		const double	lower,
		const double	upper
	)

static

Definition at line 745 of file makehrtf.c.

Referenced by Kaiser(), and LimitMagnitudeResponse().

static double ComplexAbs	(	const double	r,
		const double	i
	)

static

Definition at line 787 of file makehrtf.c.

Referenced by MagnitudeResponse().

static void ComplexExp	(	const double	inR,
		const double	inI,
		double *	outR,
		double *	outI
	)

static

Definition at line 798 of file makehrtf.c.

References cos(), e, and sin().

Referenced by MinimumPhase().

static void ComplexMul	(	const double	aR,
		const double	aI,
		const double	bR,
		const double	bI,
		double *	outR,
		double *	outI
	)

static

Definition at line 792 of file makehrtf.c.

Referenced by MinimumPhase().

static double* CreateArray ( const size_t n )

static

Definition at line 768 of file makehrtf.c.

References calloc, and NULL.

Referenced by AverageHrirMagnitude(), CalculateDiffuseFieldAverage(), MinimumPhase(), ProcessDefinition(), ProcessSources(), ReconstructHrirs(), ResamplerRun(), and ResamplerSetup().

static void DestroyArray ( const double * a )

static

Definition at line 780 of file makehrtf.c.

References free.

Referenced by AverageHrirMagnitude(), CalculateDiffuseFieldAverage(), MinimumPhase(), ProcessDefinition(), ProcessSources(), ReconstructHrirs(), ResamplerClear(), and ResamplerRun().

static void DiffuseFieldEqualize	(	const double *	dfa,
		const HrirDataT *	hData
	)

static

Definition at line 1803 of file makehrtf.c.

References i, j, and m.

Referenced by ProcessDefinition().

static void FftArrange	(	const uint	n,
		const double *	inR,
		const double *	inI,
		double *	outR,
		double *	outI
	)

static

Definition at line 812 of file makehrtf.c.

References k, and m.

Referenced by FftForward(), and FftInverse().

static void FftForward	(	const uint	n,
		const double *	inR,
		const double *	inI,
		double *	outR,
		double *	outI
	)

static

Definition at line 888 of file makehrtf.c.

References FftArrange(), and FftSummation().

Referenced by AverageHrirMagnitude(), and Hilbert().

static void FftInverse	(	const uint	n,
		const double *	inR,
		const double *	inI,
		double *	outR,
		double *	outI
	)

static

Definition at line 894 of file makehrtf.c.

References FftArrange(), FftSummation(), and i.

Referenced by Hilbert(), and ReconstructHrirs().

static void FftSummation	(	const uint	n,
		const double	s,
		double *	re,
		double *	im
	)

static

Definition at line 848 of file makehrtf.c.

References i, k, m, M_PI, pi, and sin().

Referenced by FftForward(), and FftInverse().

static uint Gcd	(	const uint	a,
		const uint	b
	)

static

Definition at line 1080 of file makehrtf.c.

Referenced by ResamplerSetup().

static void Hilbert	(	const uint	n,
		const double *	in,
		double *	outR,
		double *	outI
	)

static

Definition at line 912 of file makehrtf.c.

References FftForward(), FftInverse(), and i.

Referenced by MinimumPhase().

static int HpTpdfDither	(	const double	in,
		int *	hpHist
	)

static

Definition at line 756 of file makehrtf.c.

Referenced by StoreMhr(), and StoreTable().

static double Kaiser	(	const double	b,
		const double	k
	)

static

Definition at line 1069 of file makehrtf.c.

References BesselI_0(), and Clamp().

Referenced by SincFilter().

static double Lerp	(	const double	a,
		const double	b,
		const double	f
	)

static

Definition at line 750 of file makehrtf.c.

Referenced by AverageHrirMagnitude(), and SynthesizeHrirs().

static void LimitMagnitudeResponse	(	const uint	n,
		const double	limit,
		const double *	in,
		double *	out
	)

static

Definition at line 961 of file makehrtf.c.

References Clamp(), floor(), i, and m.

Referenced by CalculateDiffuseFieldAverage().

static int LoadAsciiSource	(	FILE *	fp,
		const SourceRefT *	src,
		const uint	n,
		double *	hrir
	)

static

Definition at line 1640 of file makehrtf.c.

References i, j, NULL, ReadAsciiAsDouble(), and TrSetup().

Referenced by LoadSource().

static int LoadBinarySource	(	FILE *	fp,
		const SourceRefT *	src,
		const ByteOrderT	order,
		const uint	n,
		double *	hrir
	)

static

Definition at line 1625 of file makehrtf.c.

References i, ReadBinAsDouble(), SEEK_CUR, and SEEK_SET.

Referenced by LoadSource().

static int LoadSource	(	SourceRefT *	src,
		const uint	hrirRate,
		const uint	n,
		double *	hrir
	)

static

Definition at line 1662 of file makehrtf.c.

References BO_BIG, BO_LITTLE, LoadAsciiSource(), LoadBinarySource(), LoadWaveSource(), NULL, SF_ASCII, SF_BIN_BE, SF_BIN_LE, and SF_WAVE.

Referenced by ProcessSources().

static int LoadWaveSource	(	FILE *	fp,
		SourceRefT *	src,
		const uint	hrirRate,
		const uint	n,
		double *	hrir
	)

static

Definition at line 1596 of file makehrtf.c.

References BO_BIG, BO_LITTLE, FOURCC_RIFF, FOURCC_RIFX, FOURCC_WAVE, ReadBin4(), ReadWaveFormat(), and ReadWaveList().

Referenced by LoadSource().

static void MagnitudeResponse	(	const uint	n,
		const double *	inR,
		const double *	inI,
		double *	out
	)

static

Definition at line 949 of file makehrtf.c.

References ComplexAbs(), EPSILON, i, and m.

Referenced by AverageHrirMagnitude().

int main	(	const int	argc,
		const char *	argv[]
	)

Definition at line 2542 of file makehrtf.c.

References DEFAULT_EQUALIZE, DEFAULT_LIMIT, DEFAULT_SURFACE, DEFAULT_TRUNCSIZE, MAX_FFTSIZE, MAX_LIMIT, MAX_RATE, MAX_TRUNCSIZE, MIN_FFTSIZE, MIN_LIMIT, MIN_RATE, MIN_TRUNCSIZE, MOD_TRUNCSIZE, NULL, OF_MHR, OF_TABLE, and ProcessDefinition().

static ElementTypeT MatchElementType ( const char * ident )

static

Definition at line 2265 of file makehrtf.c.

References ET_FP, ET_INT, and ET_NONE.

Referenced by ReadSourceRef().

static SourceFormatT MatchSourceFormat ( const char * ident )

static

Definition at line 2252 of file makehrtf.c.

References SF_ASCII, SF_BIN_BE, SF_BIN_LE, SF_NONE, and SF_WAVE.

Referenced by ReadSourceRef().

static void MinimumPhase	(	const uint	n,
		const double *	in,
		double *	outR,
		double *	outI
	)

static

Definition at line 991 of file makehrtf.c.

References ComplexExp(), ComplexMul(), CreateArray(), DestroyArray(), EPSILON, Hilbert(), i, m, and NULL.

Referenced by ReconstructHrirs().

static void NormalizeHrirs ( const HrirDataT * hData )

static

Definition at line 1937 of file makehrtf.c.

References fabs(), i, and j.

Referenced by ProcessDefinition().

static int ProcessDefinition	(	const char *	inName,
		const uint	outRate,
		const uint	fftSize,
		const int	equalize,
		const int	surface,
		const double	limit,
		const uint	truncSize,
		const OutputFormatT	outFormat,
		const char *	outName
	)

static

Definition at line 2455 of file makehrtf.c.

References CalculateDiffuseFieldAverage(), CalculateHrtds(), CreateArray(), DestroyArray(), DiffuseFieldEqualize(), MAX_PATH_LEN, NormalizeHrirs(), NULL, OF_MHR, OF_TABLE, ProcessMetrics(), ProcessSources(), ReconstructHrirs(), ResampleHrirs(), StoreMhr(), StoreTable(), StrSubst(), SynthesizeHrirs(), and TrSetup().

Referenced by main().

static int ProcessMetrics	(	TokenReaderT *	tr,
		const uint	fftSize,
		const uint	truncSize,
		HrirDataT *	hData
	)

static

Definition at line 2117 of file makehrtf.c.

References MAX_AZ_COUNT, MAX_DISTANCE, MAX_EV_COUNT, MAX_IDENT_LEN, MAX_POINTS, MAX_RADIUS, MAX_RATE, MIN_AZ_COUNT, MIN_DISTANCE, MIN_EV_COUNT, MIN_POINTS, MIN_RADIUS, MIN_RATE, TrError(), TrErrorAt(), TrIndication(), TrIsOperator(), TrReadFloat(), TrReadIdent(), TrReadInt(), TrReadOperator(), and TrSkipWhitespace().

Referenced by ProcessDefinition().

static int ProcessSources	(	TokenReaderT *	tr,
		HrirDataT *	hData
	)

static

Definition at line 2375 of file makehrtf.c.

References AverageHrirMagnitude(), calloc, CreateArray(), DestroyArray(), free, LoadSource(), NULL, ReadIndexPair(), ReadSourceRef(), TrError(), TrErrorAt(), TrIndication(), TrIsOperator(), TrLoad(), and TrReadOperator().

Referenced by ProcessDefinition().

static int ReadAsciiAsDouble	(	TokenReaderT *	tr,
		const char *	filename,
		const ElementTypeT	type,
		const uint	bits,
		double *	out
	)

static

Definition at line 1379 of file makehrtf.c.

References ET_FP, TrIsOperator(), TrReadFloat(), TrReadInt(), and TrReadOperator().

Referenced by LoadAsciiSource().

static int ReadBin4	(	FILE *	fp,
		const char *	filename,
		const ByteOrderT	order,
		const uint	bytes,
		uint4 *	out
	)

static

Definition at line 1241 of file makehrtf.c.

References BO_BIG, BO_LITTLE, and i.

Referenced by LoadWaveSource(), ReadBinAsDouble(), ReadWaveFormat(), and ReadWaveList().

static int ReadBin8	(	FILE *	fp,
		const char *	filename,
		const ByteOrderT	order,
		uint8 *	out
	)

static

Definition at line 1269 of file makehrtf.c.

References BO_BIG, BO_LITTLE, and i.

Referenced by ReadBinAsDouble().

static int ReadBinAsDouble	(	FILE *	fp,
		const char *	filename,
		const ByteOrderT	order,
		const ElementTypeT	type,
		const uint	bytes,
		const int	bits,
		double *	out
	)