FFmpeg: libavfilter/window_func.h File Reference

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libavfilter

Macros | Enumerations | Functions

window_func.h File Reference

#include <math.h>
#include "libavutil/avassert.h"
#include "libavutil/common.h"

Go to the source code of this file.

Macros

#define WIN_FUNC_OPTION(win_func_opt_name, win_func_offset, flag, default_window_func)

#define SINC(x) (!(x)) ? 1 : sin(M_PI * (x))/(M_PI * (x));

#define SQR(x) ((x)*(x))

Enumerations

Functions

static void generate_window_func (float *lut, int N, int win_func, float *overlap)

Macro Definition Documentation

◆ WIN_FUNC_OPTION

#define WIN_FUNC_OPTION ( win_func_opt_name,

win_func_offset,

flag,

default_window_func

)

Value:

{ win_func_opt_name, "set window function", win_func_offset, AV_OPT_TYPE_INT, {.i64 = default_window_func}, 0, NB_WFUNC-1, flag, .unit = "win_func" }, \

{ "rect", "Rectangular", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_RECT}, 0, 0, flag, .unit = "win_func" }, \

{ "bartlett", "Bartlett", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_BARTLETT}, 0, 0, flag, .unit = "win_func" }, \

{ "hann", "Hann", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_HANNING}, 0, 0, flag, .unit = "win_func" }, \

{ "hanning", "Hanning", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_HANNING}, 0, 0, flag, .unit = "win_func" }, \

{ "hamming", "Hamming", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_HAMMING}, 0, 0, flag, .unit = "win_func" }, \

{ "blackman", "Blackman", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_BLACKMAN}, 0, 0, flag, .unit = "win_func" }, \

{ "welch", "Welch", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_WELCH}, 0, 0, flag, .unit = "win_func" }, \

{ "flattop", "Flat-top", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_FLATTOP}, 0, 0, flag, .unit = "win_func" }, \

{ "bharris", "Blackman-Harris", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_BHARRIS}, 0, 0, flag, .unit = "win_func" }, \

{ "bnuttall", "Blackman-Nuttall", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_BNUTTALL}, 0, 0, flag, .unit = "win_func" }, \

{ "bhann", "Bartlett-Hann", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_BHANN}, 0, 0, flag, .unit = "win_func" }, \

{ "sine", "Sine", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_SINE}, 0, 0, flag, .unit = "win_func" }, \

{ "nuttall", "Nuttall", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_NUTTALL}, 0, 0, flag, .unit = "win_func" }, \

{ "lanczos", "Lanczos", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_LANCZOS}, 0, 0, flag, .unit = "win_func" }, \

{ "gauss", "Gauss", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_GAUSS}, 0, 0, flag, .unit = "win_func" }, \

{ "tukey", "Tukey", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_TUKEY}, 0, 0, flag, .unit = "win_func" }, \

{ "dolph", "Dolph-Chebyshev", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_DOLPH}, 0, 0, flag, .unit = "win_func" }, \

{ "cauchy", "Cauchy", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_CAUCHY}, 0, 0, flag, .unit = "win_func" }, \

{ "parzen", "Parzen", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_PARZEN}, 0, 0, flag, .unit = "win_func" }, \

{ "poisson", "Poisson", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_POISSON}, 0, 0, flag, .unit = "win_func" }, \

{ "bohman", "Bohman", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_BOHMAN}, 0, 0, flag, .unit = "win_func" }, \

{ "kaiser", "Kaiser", 0, AV_OPT_TYPE_CONST, {.i64=WFUNC_KAISER}, 0, 0, flag, .unit = "win_func" }

Definition at line 37 of file window_func.h.

◆ SINC

#define SINC ( x ) (!(x)) ? 1 : sin(M_PI * (x))/(M_PI * (x));

◆ SQR

#define SQR ( x ) ((x)*(x))

Enumeration Type Documentation

◆ WindowFunc

enum WindowFunc

Enumerator
WFUNC_RECTANGULAR
WFUNC_HANN
WFUNC_HAMMING
WFUNC_BLACKMAN
WFUNC_NUTTALL3
WFUNC_MNUTTALL3
WFUNC_NUTTALL
WFUNC_BNUTTALL
WFUNC_BHARRIS
WFUNC_TUKEY
NB_WFUNC
WFUNC_RECT
WFUNC_HANNING
WFUNC_HAMMING
WFUNC_BLACKMAN
WFUNC_BARTLETT
WFUNC_WELCH
WFUNC_FLATTOP
WFUNC_BHARRIS
WFUNC_BNUTTALL
WFUNC_SINE
WFUNC_NUTTALL
WFUNC_BHANN
WFUNC_LANCZOS
WFUNC_GAUSS
WFUNC_TUKEY
WFUNC_DOLPH
WFUNC_CAUCHY
WFUNC_PARZEN
WFUNC_POISSON
WFUNC_BOHMAN
WFUNC_KAISER
NB_WFUNC