#include <stdint.h>
#include "config.h"
#include "libavutil/mem.h"
#include "avfft.h"

Data Structures
struct	FFTDComplex

struct	FFTContext

Macros
#define	CONFIG_FFT_FLOAT 1

#define	CONFIG_FFT_FIXED_32 0

#define	FFT_NAME(x) x

#define	FF_FFT_PERM_DEFAULT 0

#define	FF_FFT_PERM_SWAP_LSBS 1

#define	FF_FFT_PERM_AVX 2

#define	FF_MDCT_PERM_NONE 0

#define	FF_MDCT_PERM_INTERLEAVE 1

#define	COSTABLE_CONST

#define	COSTABLE(size) COSTABLE_CONST DECLARE_ALIGNED(32, FFTSample, FFT_NAME(ff_cos_##size))[size/2]

#define	ff_init_ff_cos_tabs FFT_NAME(ff_init_ff_cos_tabs)

#define	ff_fft_init FFT_NAME(ff_fft_init)

#define	ff_fft_end FFT_NAME(ff_fft_end)

#define	ff_mdct_init FFT_NAME(ff_mdct_init)

#define	ff_mdct_end FFT_NAME(ff_mdct_end)

Typedefs
typedef float	FFTDouble

Functions
	COSTABLE (16)

	COSTABLE (32)

	COSTABLE (64)

	COSTABLE (128)

	COSTABLE (256)

	COSTABLE (512)

	COSTABLE (1024)

	COSTABLE (2048)

	COSTABLE (4096)

	COSTABLE (8192)

	COSTABLE (16384)

	COSTABLE (32768)

	COSTABLE (65536)

COSTABLE_CONST FFTSample *const	FFT_NAME (ff_cos_tabs)[17]

void	ff_init_ff_cos_tabs (int index)
	Initialize the cosine table in ff_cos_tabs[index].

int	ff_fft_init (FFTContext *s, int nbits, int inverse)
	Set up a complex FFT.

void	ff_fft_init_x86 (FFTContext *s)

void	ff_fft_init_arm (FFTContext *s)

void	ff_fft_init_mips (FFTContext *s)
	FFT transform.

void	ff_fft_init_ppc (FFTContext *s)

void	ff_fft_fixed_init_arm (FFTContext *s)

void	ff_fft_end (FFTContext *s)

int	ff_mdct_init (FFTContext *s, int nbits, int inverse, double scale)
	init MDCT or IMDCT computation.

void	ff_mdct_end (FFTContext *s)

Macro Definition Documentation

#define CONFIG_FFT_FLOAT 1

Definition at line 26 of file fft.h.

#define CONFIG_FFT_FIXED_32 0

Definition at line 30 of file fft.h.

#define FFT_NAME ( x ) x

Definition at line 41 of file fft.h.

Referenced by ff_init_ff_cos_tabs(), and fft16().

#define FF_FFT_PERM_DEFAULT 0

Definition at line 101 of file fft.h.

Referenced by ff_fft_init().

#define FF_FFT_PERM_SWAP_LSBS 1

Definition at line 102 of file fft.h.

Referenced by ff_fft_fixed_init_arm(), ff_fft_init(), and ff_fft_init_x86().

#define FF_FFT_PERM_AVX 2

Definition at line 103 of file fft.h.

Referenced by ff_fft_init(), and ff_fft_init_x86().

#define FF_MDCT_PERM_NONE 0

Definition at line 105 of file fft.h.

Referenced by ff_mdct_init().

#define FF_MDCT_PERM_INTERLEAVE 1

Definition at line 106 of file fft.h.

Referenced by ff_fft_fixed_init_arm(), ff_fft_init_arm(), and ff_mdct_init().

#define COSTABLE_CONST

Definition at line 112 of file fft.h.

#define COSTABLE ( size ) COSTABLE_CONST DECLARE_ALIGNED(32, FFTSample, FFT_NAME(ff_cos_##size))[size/2]

Definition at line 115 of file fft.h.

#define ff_init_ff_cos_tabs FFT_NAME(ff_init_ff_cos_tabs)

Definition at line 133 of file fft.h.

Referenced by ff_dct_init(), ff_fft_init(), ff_fft_init_mips(), and ff_rdft_init().

#define ff_fft_init FFT_NAME(ff_fft_init)

Definition at line 141 of file fft.h.

Referenced by av_fft_init(), ff_mdct_init(), ff_rdft_init(), imc_decode_init(), and main().

#define ff_fft_end FFT_NAME(ff_fft_end)

Definition at line 142 of file fft.h.

Referenced by av_fft_end(), ff_mdct_end(), ff_rdft_end(), imc_decode_close(), and main().

#define ff_mdct_init FFT_NAME(ff_mdct_init)

Definition at line 160 of file fft.h.

Referenced by aac_decode_init(), ac3_decode_init(), atrac1_decode_init(), atrac3_decode_init(), create_vorbis_context(), dca_decode_init(), decode_init(), dsp_init(), encode_init(), ff_aac_sbr_ctx_init(), ff_ac3_float_mdct_init(), init_cook_mlt(), init_mdct_win(), main(), mdct_init(), vorbis_parse_id_hdr(), and wma_decode_init().

#define ff_mdct_end FFT_NAME(ff_mdct_end)

Definition at line 161 of file fft.h.

Referenced by aac_decode_close(), aac_encode_end(), ac3_decode_end(), atrac1_decode_end(), atrac3_decode_close(), cook_decode_close(), dca_decode_end(), decode_end(), encode_end(), ff_aac_sbr_ctx_close(), ff_ac3_float_mdct_end(), ff_mdct_init(), ff_twinvq_decode_close(), ff_wma_end(), main(), mdct_end(), vorbis_encode_close(), and vorbis_free().

Typedef Documentation

typedef float FFTDouble

Definition at line 43 of file fft.h.

Function Documentation

COSTABLE ( 16 )

COSTABLE ( 32 )

COSTABLE ( 64 )

COSTABLE ( 128 )

COSTABLE ( 256 )

COSTABLE ( 512 )

COSTABLE ( 1024 )

COSTABLE ( 2048 )

COSTABLE ( 4096 )

COSTABLE ( 8192 )

COSTABLE ( 16384 )

COSTABLE ( 32768 )

COSTABLE ( 65536 )

COSTABLE_CONST FFTSample* const FFT_NAME ( ff_cos_tabs )

void ff_init_ff_cos_tabs ( int index )

Initialize the cosine table in ff_cos_tabs[index].

Parameters

index index in ff_cos_tabs array of the table to initialize

Definition at line 88 of file fft.c.

int ff_fft_init	(	FFTContext *	s,
		int	nbits,
		int	inverse
	)

Set up a complex FFT.

Parameters

nbits	log2 of the length of the input array
inverse	if 0 perform the forward transform, if 1 perform the inverse

Definition at line 140 of file fft.c.

void ff_fft_init_x86 ( FFTContext * s )

Definition at line 25 of file fft_init.c.

Referenced by ff_fft_init().

void ff_fft_init_arm ( FFTContext * s )

Definition at line 37 of file fft_init_arm.c.

Referenced by ff_fft_init().

void ff_fft_init_mips ( FFTContext * s )

FFT transform.

Definition at line 520 of file fft_mips.c.

Referenced by ff_fft_init().

void ff_fft_init_ppc ( FFTContext * s )

Definition at line 143 of file fft_altivec.c.

Referenced by ff_fft_init().

void ff_fft_fixed_init_arm ( FFTContext * s )

Definition at line 30 of file fft_fixed_init_arm.c.

Referenced by ff_fft_init().

void ff_fft_end ( FFTContext * s )

Definition at line 216 of file fft.c.

int ff_mdct_init	(	FFTContext *	s,
		int	nbits,
		int	inverse,
		double	scale
	)

init MDCT or IMDCT computation.

Definition at line 47 of file mdct.c.

void ff_mdct_end ( FFTContext * s )

Definition at line 203 of file mdct.c.

Data Structures

Macros

Typedefs

Functions

Macro Definition Documentation

Typedef Documentation

Function Documentation