Detailed Description

Definition at line 59 of file fft_impl.cpp.hpp.

Collaboration diagram for fl::audio::fft::Context:

Public Member Functions
	Context (int samples, int bands, float fmin, float fmax, int sample_rate, Mode mode, Window window)

	~Context () FL_NOEXCEPT

fl::string	info () const

void	run (span< const i16 > buffer, Bins *out)

fl::size	sampleSize () const

Private Member Functions
void	buildLinearBinLut (fl::vector< u8 > &lut, int fftN)

void	buildLogBinLut (fl::vector< u8 > &lut, int fftN, float fs, int binStart, int binEnd)

void	computeBinEdgesQ16 ()

void	computeLinearBins (const u16 mag, int, Bins out)

void	computeLogRebinNormFactors (fl::vector< float > &normFactors, const fl::vector< u8 > &lut, int fftN, float fs, int binStart, int binEnd)

void	initHybrid (int samples, int bands, float fmin, float fmax, int sr)

void	initLogRebin ()

void	initNaive (int samples, int bands, float fmin, float fmax, int sr)

void	initOctaveWise (int samples, int bands, float fmin, float fmax, int sr)

void	initWindow ()

void	logRebinRange (const u16 mag, int fftN, float fs, int binStart, int binEnd, u32 rawBinsI, const fl::vector< u8 > &lut)

void	runHybrid (span< const i16 > buffer, Bins *out)

void	runLogRebin (span< const i16 > buffer, Bins *out)

void	runNaive (span< const i16 > buffer, Bins *out)

void	runOctaveWise (span< const i16 > buffer, Bins *out)

Static Private Member Functions
static void	applyWindow (const kiss_fft_scalar samples, const alpha16 win, kiss_fft_scalar *out, int N)

static void	batchMag (const kiss_fft_scalar re, const kiss_fft_scalar im, u16 *mag, int n)

static void	computeWindow (fl::vector< alpha16 > &win, int N, Window type)

static void	decimateBy2 (kiss_fft_scalar *buf, int len)

static void	deinterleave (const kiss_fft_cpx cpx, kiss_fft_scalar re, kiss_fft_scalar *im, int n)

static float	fastDb (u32 x)

static u16	fastMag (i32 re, i32 im)

static FftScratch &	scratch ()

The documentation for this class was generated from the following file:

Classes