kiss_fastfir.c File Reference

#include "_kiss_fft_guts.h"

Classes
struct	kiss_fastfir_state
Defines
#define	MIN_FFT_LEN   1024
#define	FFT_ALLOC   kiss_fft_alloc
#define	FFTFWD   kiss_fft
#define	FFTINV   kiss_fft
Typedefs
typedef kiss_fft_cpx	kffsamp_t
typedef kiss_fft_cfg	kfcfg_t
typedef struct kiss_fastfir_state *	kiss_fastfir_cfg
Functions
kiss_fastfir_cfg	kiss_fastfir_alloc (const kffsamp_t *imp_resp, size_t n_imp_resp, size_t *nfft, void *mem, size_t *lenmem)
size_t	kiss_fastfir (kiss_fastfir_cfg cfg, kffsamp_t *inbuf, kffsamp_t *outbuf, size_t n, size_t *offset)
static void	fastconv1buf (const kiss_fastfir_cfg st, const kffsamp_t *in, kffsamp_t *out)
static size_t	kff_nocopy (kiss_fastfir_cfg st, const kffsamp_t *inbuf, kffsamp_t *outbuf, size_t n)
static size_t	kff_flush (kiss_fastfir_cfg st, const kffsamp_t *inbuf, kffsamp_t *outbuf, size_t n)
Variables
static int	verbose = 0

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Define Documentation

#define MIN_FFT_LEN   1024

Referenced by kiss_fastfir_alloc().

#define FFT_ALLOC   kiss_fft_alloc

Referenced by kiss_fastfir_alloc().

#define FFTFWD   kiss_fft

Referenced by fastconv1buf(), and kiss_fastfir_alloc().

#define FFTINV   kiss_fft

Referenced by fastconv1buf().

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Typedef Documentation

typedef kiss_fft_cpx kffsamp_t

typedef kiss_fft_cfg kfcfg_t

typedef struct kiss_fastfir_state* kiss_fastfir_cfg

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Function Documentation

kiss_fastfir_cfg kiss_fastfir_alloc	(	const kffsamp_t *	imp_resp,
		size_t	n_imp_resp,
		size_t *	nfft,
		void *	mem,
		size_t *	lenmem
	)

References FFT_ALLOC, kiss_fastfir_state::fftcfg, FFTFWD, kiss_fastfir_state::fir_freq_resp, kiss_fastfir_state::freqbuf, kiss_fft_cpx::i, kiss_fastfir_state::ifftcfg, MIN_FFT_LEN, kiss_fastfir_state::n_freq_bins, kiss_fastfir_state::nfft, nfft, kiss_fastfir_state::ngood, kiss_fft_cpx::r, and kiss_fastfir_state::tmpbuf.

size_t kiss_fastfir	(	kiss_fastfir_cfg	cfg,
		kffsamp_t *	inbuf,
		kffsamp_t *	outbuf,
		size_t	n,
		size_t *	offset
	)

References kff_flush(), and kff_nocopy().

static void fastconv1buf	(	const kiss_fastfir_cfg	st,
		const kffsamp_t *	in,
		kffsamp_t *	out
	)			[static]

References C_MUL, kiss_fastfir_state::fftcfg, FFTFWD, FFTINV, kiss_fastfir_state::fir_freq_resp, kiss_fastfir_state::freqbuf, kiss_fastfir_state::ifftcfg, and kiss_fastfir_state::n_freq_bins.

Referenced by kff_flush(), and kff_nocopy().

static size_t kff_nocopy	(	kiss_fastfir_cfg	st,
		const kffsamp_t *	inbuf,
		kffsamp_t *	outbuf,
		size_t	n
	)			[static]

References fastconv1buf(), kiss_fastfir_state::nfft, and kiss_fastfir_state::ngood.

Referenced by kff_flush(), and kiss_fastfir().

static size_t kff_flush	(	kiss_fastfir_cfg	st,
		const kffsamp_t *	inbuf,
		kffsamp_t *	outbuf,
		size_t	n
	)			[static]

References fastconv1buf(), kff_nocopy(), kiss_fastfir_state::nfft, kiss_fastfir_state::ngood, and kiss_fastfir_state::tmpbuf.

Referenced by kiss_fastfir().

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Variable Documentation

int verbose = 0 [static]