af_afwtdn.c File Reference

#include <float.h>
#include "libavutil/avassert.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "audio.h"
#include "filters.h"

Go to the source code of this file.

Data Structures
struct	ChannelParams
	sample data coding information More...
struct	AudioFWTDNContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	MAX_LEVELS   13
#define	OFFSET(x)   offsetof(AudioFWTDNContext, x)
#define	AF   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
#define	AFR   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
#define	pow2(x)   (1U << (x))
#define	mod_pow2(x, power_of_two)   ((x) & ((power_of_two) - 1))

Enumerations
enum	WaveletTypes {   SYM2, SYM4, RBIOR68, DEB10,   SYM10, COIF5, BL3, NB_WAVELET_TYPES }

Functions
	AVFILTER_DEFINE_CLASS (afwtdn)
static void	conv_down (double *in, int in_length, double *low, double *high, int out_length, const double *lp, const double *hp, int wavelet_length, int skip, double *buffer, int buffer_length)
static int	left_ext (int wavelet_length, int levels, uint64_t sn)
static int	nb_coefs (int length, int level, uint64_t sn)
static int	reallocate_inputs (double **out, int *out_length, int in_length, int levels, int ch, uint64_t sn)
static int	max_left_zeros_inverse (int levels, int level, int wavelet_length)
static int	reallocate_outputs (AudioFWTDNContext *s, double **out, int *out_length, int in_length, int levels, int ch, uint64_t sn)
static int	discard_left_ext (int wavelet_length, int levels, int level, uint64_t sn)
static int	forward (AudioFWTDNContext *s, const double *in, int in_length, double **out, int *out_length, int ch, uint64_t sn)
static void	conv_up (double *low, double *high, int in_length, double *out, int out_length, const double *lp, const double *hp, int filter_length, double *buffer, double *buffer2, int buffer_length)
static int	append_left_ext (int wavelet_length, int levels, int level, uint64_t sn)
static int	inverse (AudioFWTDNContext *s, double **in, int *in_length, double *out, int out_length, int ch, uint64_t sn)
static int	next_pow2 (int in)
static void	denoise_level (double *out, const double *in, const double *filter, double percent, int length)
static double	sqr (double in)
static double	measure_mean (const double *in, int length)
static double	measure_absmean (const double *in, int length)
static double	measure_stddev (const double *in, int length, double mean)
static void	noise_filter (const double stddev, const double *in, double *out, double absmean, double softness, double new_stddev, int length)
static int	filter_channel (AVFilterContext *ctx, void *arg, int ch, int nb_jobs)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static int	max_left_ext (int wavelet_length, int levels)
static int	min_left_ext (int wavelet_length, int levels)
static int	config_output (AVFilterLink *outlink)
static int	activate (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
static int	process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)

Variables
static const double	bl3_lp [42]
static const double	bl3_hp [42]
static const double	bl3_ilp [42]
static const double	bl3_ihp [42]
static const double	sym10_lp [20]
static const double	sym10_hp [20]
static const double	sym10_ilp [20]
static const double	sym10_ihp [20]
static const double	rbior68_lp [18]
static const double	rbior68_hp [18]
static const double	rbior68_ilp [18]
static const double	rbior68_ihp [18]
static const double	coif5_lp [30]
static const double	coif5_hp [30]
static const double	coif5_ilp [30]
static const double	coif5_ihp [30]
static const double	deb10_lp [20]
static const double	deb10_hp [20]
static const double	deb10_ilp [20]
static const double	deb10_ihp [20]
static const double	sym4_lp [8]
static const double	sym4_hp [8]
static const double	sym4_ilp [8]
static const double	sym4_ihp [8]
static const double	sym2_lp [4]
static const double	sym2_hp [4]
static const double	sym2_ilp [4]
static const double	sym2_ihp [4]
static const AVOption	afwtdn_options []
static const AVFilterPad	outputs []
const AVFilter	ff_af_afwtdn

Macro Definition Documentation

MAX_LEVELS

#define MAX_LEVELS   13

Definition at line 376 of file af_afwtdn.c.

OFFSET

#define OFFSET

(

x

)

offsetof(AudioFWTDNContext, x)

Definition at line 437 of file af_afwtdn.c.

AF

#define AF   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 438 of file af_afwtdn.c.

AFR

#define AFR   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 439 of file af_afwtdn.c.

pow2

#define pow2

(

x

)

(1U << (x))

Definition at line 462 of file af_afwtdn.c.

mod_pow2

#define mod_pow2	(		x,
			power_of_two
	)		((x) & ((power_of_two) - 1))

Definition at line 463 of file af_afwtdn.c.

Enumeration Type Documentation

WaveletTypes

enum WaveletTypes

Enumerator
SYM2
SYM4
RBIOR68
DEB10
SYM10
COIF5
BL3
NB_WAVELET_TYPES

Definition at line 29 of file af_afwtdn.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

afwtdn

)

conv_down()

static void conv_down ( double *  in, int  in_length, double *  low, double *  high, int  out_length, const double *  lp, const double *  hp, int  wavelet_length, int  skip, double *  buffer, int  buffer_length  )

static

Definition at line 465 of file af_afwtdn.c.

Referenced by forward().

left_ext()

static int left_ext ( int  wavelet_length, int  levels, uint64_t  sn  )

static

Definition at line 506 of file af_afwtdn.c.

Referenced by forward(), inverse(), invert_step(), and symmetric_extension().

nb_coefs()

static int nb_coefs ( int  length, int  level, uint64_t  sn  )

static

Definition at line 513 of file af_afwtdn.c.

Referenced by ac3_apply_rematrixing(), ac3_exponent_min_c(), ac3_extract_exponents_c(), compute_rematrixing_strategy(), count_exponent_bits(), encode_block(), encode_exponents(), reallocate_inputs(), reallocate_outputs(), and wma_decode_block().

reallocate_inputs()

static int reallocate_inputs ( double **  out, int *  out_length, int  in_length, int  levels, int  ch, uint64_t  sn  )

static

Definition at line 520 of file af_afwtdn.c.

Referenced by forward().

max_left_zeros_inverse()

static int max_left_zeros_inverse ( int  levels, int  level, int  wavelet_length  )

static

Definition at line 560 of file af_afwtdn.c.

Referenced by reallocate_outputs().

reallocate_outputs()

static int reallocate_outputs ( AudioFWTDNContext *  s, double **  out, int *  out_length, int  in_length, int  levels, int  ch, uint64_t  sn  )

static

Definition at line 565 of file af_afwtdn.c.

Referenced by forward().

discard_left_ext()

static int discard_left_ext ( int  wavelet_length, int  levels, int  level, uint64_t  sn  )

static

Definition at line 611 of file af_afwtdn.c.

Referenced by forward().

forward()

static int forward ( AudioFWTDNContext *  s, const double *  in, int  in_length, double **  out, int *  out_length, int  ch, uint64_t  sn  )

static

Definition at line 618 of file af_afwtdn.c.

Referenced by decode_bmv_frame(), and filter_channel().

conv_up()

static void conv_up ( double *  low, double *  high, int  in_length, double *  out, int  out_length, const double *  lp, const double *  hp, int  filter_length, double *  buffer, double *  buffer2, int  buffer_length  )

static

Definition at line 715 of file af_afwtdn.c.

Referenced by inverse().

append_left_ext()

static int append_left_ext ( int  wavelet_length, int  levels, int  level, uint64_t  sn  )

static

Definition at line 751 of file af_afwtdn.c.

Referenced by inverse().

inverse()

static int inverse ( AudioFWTDNContext *  s, double **  in, int *  in_length, double *  out, int  out_length, int  ch, uint64_t  sn  )

static

Definition at line 760 of file af_afwtdn.c.

Referenced by filter_channel().

next_pow2()

static int next_pow2 ( int  in )

static

Definition at line 854 of file af_afwtdn.c.

Referenced by config_output().

denoise_level()

static void denoise_level ( double *  out, const double *  in, const double *  filter, double  percent, int  length  )

static

Definition at line 859 of file af_afwtdn.c.

Referenced by filter_channel().

sqr()

static double sqr ( double  in )

static

Definition at line 870 of file af_afwtdn.c.

Referenced by bitreduction(), encode_block(), filter_channel(), get_visual_weight(), and measure_stddev().

measure_mean()

static double measure_mean ( const double *  in, int  length  )

static

Definition at line 875 of file af_afwtdn.c.

Referenced by filter_channel().

measure_absmean()

static double measure_absmean ( const double *  in, int  length  )

static

Definition at line 885 of file af_afwtdn.c.

Referenced by filter_channel().

measure_stddev()

static double measure_stddev ( const double *  in, int  length, double  mean  )

static

Definition at line 895 of file af_afwtdn.c.

Referenced by filter_channel().

noise_filter()

static void noise_filter ( const double  stddev, const double *  in, double *  out, double  absmean, double  softness, double  new_stddev, int  length  )

static

Definition at line 906 of file af_afwtdn.c.

Referenced by filter_channel().

filter_channel()

static int filter_channel ( AVFilterContext *  ctx, void *  arg, int  ch, int  nb_jobs  )

static

Definition at line 924 of file af_afwtdn.c.

Referenced by config_output().

filter_frame()

static int filter_frame ( AVFilterLink *  inlink, AVFrame *  in  )

static

Definition at line 1003 of file af_afwtdn.c.

Referenced by activate().

max_left_ext()

static int max_left_ext ( int  wavelet_length, int  levels  )

static

Definition at line 1083 of file af_afwtdn.c.

Referenced by config_output().

min_left_ext()

static int min_left_ext ( int  wavelet_length, int  levels  )

static

Definition at line 1088 of file af_afwtdn.c.

Referenced by config_output().

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 1093 of file af_afwtdn.c.

activate()

static int activate ( AVFilterContext *  ctx )

static

Definition at line 1200 of file af_afwtdn.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 1233 of file af_afwtdn.c.

process_command()

static int process_command ( AVFilterContext *  ctx, const char *  cmd, const char *  args, char *  res, int  res_len, int  flags  )

static

Definition at line 1275 of file af_afwtdn.c.

Variable Documentation

bl3_lp

const double bl3_lp[42]

static

Initial value:

= {
    0.000146098, -0.000232304, -0.000285414, 0.000462093, 0.000559952,
    -0.000927187, -0.001103748, 0.00188212, 0.002186714, -0.003882426,
    -0.00435384, 0.008201477, 0.008685294, -0.017982291, -0.017176331,
    0.042068328, 0.032080869, -0.110036987, -0.050201753, 0.433923147,
    0.766130398, 0.433923147, -0.050201753, -0.110036987, 0.032080869,
    0.042068328, -0.017176331, -0.017982291, 0.008685294, 0.008201477,
    -0.00435384, -0.003882426, 0.002186714, 0.00188212, -0.001103748,
    -0.000927187, 0.000559952, 0.000462093, -0.000285414, -0.000232304,
    0.000146098, 0.0,
}

Definition at line 44 of file af_afwtdn.c.

Referenced by config_output().

bl3_hp

const double bl3_hp[42]

static

Initial value:

= {
    0.0, 0.000146098, 0.000232304, -0.000285414, -0.000462093, 0.000559952,
    0.000927187, -0.001103748, -0.00188212, 0.002186714, 0.003882426,
    -0.00435384, -0.008201477, 0.008685294, 0.017982291, -0.017176331,
    -0.042068328, 0.032080869, 0.110036987, -0.050201753, -0.433923147,
    0.766130398, -0.433923147, -0.050201753, 0.110036987, 0.032080869,
    -0.042068328, -0.017176331, 0.017982291, 0.008685294, -0.008201477,
    -0.00435384, 0.003882426, 0.002186714, -0.00188212, -0.001103748,
    0.000927187, 0.000559952, -0.000462093, -0.000285414, 0.000232304,
    0.000146098,
}

Definition at line 56 of file af_afwtdn.c.

Referenced by config_output().

bl3_ilp

const double bl3_ilp[42]

static

Initial value:

= {
    0.0, 0.000146098, -0.000232304, -0.000285414, 0.000462093, 0.000559952,
    -0.000927187, -0.001103748, 0.00188212, 0.002186714, -0.003882426,
    -0.00435384, 0.008201477, 0.008685294, -0.017982291, -0.017176331,
    0.042068328, 0.032080869, -0.110036987, -0.050201753, 0.433923147,
    0.766130398, 0.433923147, -0.050201753, -0.110036987, 0.032080869,
    0.042068328, -0.017176331, -0.017982291, 0.008685294, 0.008201477,
    -0.00435384, -0.003882426, 0.002186714, 0.00188212, -0.001103748,
    -0.000927187, 0.000559952, 0.000462093, -0.000285414, -0.000232304,
    0.000146098,
}

Definition at line 68 of file af_afwtdn.c.

Referenced by config_output().

bl3_ihp

const double bl3_ihp[42]

static

Initial value:

= {
    0.000146098, 0.000232304, -0.000285414, -0.000462093, 0.000559952,
    0.000927187, -0.001103748, -0.00188212, 0.002186714, 0.003882426,
    -0.00435384, -0.008201477, 0.008685294, 0.017982291, -0.017176331,
    -0.042068328, 0.032080869, 0.110036987, -0.050201753, -0.433923147,
    0.766130398, -0.433923147, -0.050201753, 0.110036987, 0.032080869,
    -0.042068328, -0.017176331, 0.017982291, 0.008685294, -0.008201477,
    -0.00435384, 0.003882426, 0.002186714, -0.00188212, -0.001103748,
    0.000927187, 0.000559952, -0.000462093, -0.000285414, 0.000232304,
    0.000146098,
}

Definition at line 80 of file af_afwtdn.c.

Referenced by config_output().

sym10_lp

const double sym10_lp[20]

static

Initial value:

= {
    0.0007701598091144901, 9.563267072289475e-05,
    -0.008641299277022422, -0.0014653825813050513,
    0.0459272392310922, 0.011609893903711381,
    -0.15949427888491757, -0.07088053578324385,
    0.47169066693843925, 0.7695100370211071,
    0.38382676106708546, -0.03553674047381755,
    -0.0319900568824278, 0.04999497207737669,
    0.005764912033581909, -0.02035493981231129,
    -0.0008043589320165449, 0.004593173585311828,
    5.7036083618494284e-05, -0.0004593294210046588,
}

Definition at line 92 of file af_afwtdn.c.

Referenced by config_output().

sym10_hp

const double sym10_hp[20]

static

Initial value:

= {
    0.0004593294210046588, 5.7036083618494284e-05,
    -0.004593173585311828, -0.0008043589320165449,
    0.02035493981231129, 0.005764912033581909,
    -0.04999497207737669, -0.0319900568824278,
    0.03553674047381755, 0.38382676106708546,
    -0.7695100370211071, 0.47169066693843925,
    0.07088053578324385, -0.15949427888491757,
    -0.011609893903711381, 0.0459272392310922,
    0.0014653825813050513, -0.008641299277022422,
    -9.563267072289475e-05, 0.0007701598091144901,
}

Definition at line 105 of file af_afwtdn.c.

Referenced by config_output().

sym10_ilp

const double sym10_ilp[20]

static

Initial value:

= {
    -0.0004593294210046588, 5.7036083618494284e-05,
    0.004593173585311828, -0.0008043589320165449,
    -0.02035493981231129, 0.005764912033581909,
    0.04999497207737669, -0.0319900568824278,
    -0.03553674047381755, 0.38382676106708546,
    0.7695100370211071, 0.47169066693843925,
    -0.07088053578324385, -0.15949427888491757,
    0.011609893903711381, 0.0459272392310922,
    -0.0014653825813050513, -0.008641299277022422,
    9.563267072289475e-05, 0.0007701598091144901,
}

Definition at line 118 of file af_afwtdn.c.

Referenced by config_output().

sym10_ihp

const double sym10_ihp[20]

static

Initial value:

= {
    0.0007701598091144901, -9.563267072289475e-05,
    -0.008641299277022422, 0.0014653825813050513,
    0.0459272392310922, -0.011609893903711381,
    -0.15949427888491757, 0.07088053578324385,
    0.47169066693843925, -0.7695100370211071,
    0.38382676106708546, 0.03553674047381755,
    -0.0319900568824278, -0.04999497207737669,
    0.005764912033581909, 0.02035493981231129,
    -0.0008043589320165449, -0.004593173585311828,
    5.7036083618494284e-05, 0.0004593294210046588,
}

Definition at line 131 of file af_afwtdn.c.

Referenced by config_output().

rbior68_lp

const double rbior68_lp[18]

static

Initial value:

= {
    0.0, 0.0, 0.0, 0.0,
    0.014426282505624435, 0.014467504896790148,
    -0.07872200106262882, -0.04036797903033992,
    0.41784910915027457, 0.7589077294536541,
    0.41784910915027457, -0.04036797903033992,
    -0.07872200106262882, 0.014467504896790148,
    0.014426282505624435, 0.0, 0.0, 0.0,
}

Definition at line 144 of file af_afwtdn.c.

Referenced by config_output().

rbior68_hp

const double rbior68_hp[18]

static

Initial value:

= {
    -0.0019088317364812906, -0.0019142861290887667,
    0.016990639867602342, 0.01193456527972926,
    -0.04973290349094079, -0.07726317316720414,
    0.09405920349573646, 0.4207962846098268,
    -0.8259229974584023, 0.4207962846098268,
    0.09405920349573646, -0.07726317316720414,
    -0.04973290349094079, 0.01193456527972926,
    0.016990639867602342, -0.0019142861290887667,
    -0.0019088317364812906, 0.0,
}

Definition at line 154 of file af_afwtdn.c.

Referenced by config_output().

rbior68_ilp

const double rbior68_ilp[18]

static

Initial value:

= {
    0.0019088317364812906, -0.0019142861290887667,
    -0.016990639867602342, 0.01193456527972926,
    0.04973290349094079, -0.07726317316720414,
    -0.09405920349573646, 0.4207962846098268,
    0.8259229974584023, 0.4207962846098268,
    -0.09405920349573646, -0.07726317316720414,
    0.04973290349094079, 0.01193456527972926,
    -0.016990639867602342, -0.0019142861290887667,
    0.0019088317364812906, 0.0,
}

Definition at line 166 of file af_afwtdn.c.

Referenced by config_output().

rbior68_ihp

const double rbior68_ihp[18]

static

Initial value:

= {
    0.0, 0.0, 0.0, 0.0,
    0.014426282505624435, -0.014467504896790148,
    -0.07872200106262882, 0.04036797903033992,
    0.41784910915027457, -0.7589077294536541,
    0.41784910915027457, 0.04036797903033992,
    -0.07872200106262882, -0.014467504896790148,
    0.014426282505624435, 0.0, 0.0, 0.0,
}

Definition at line 178 of file af_afwtdn.c.

Referenced by config_output().

coif5_lp

const double coif5_lp[30]

static

Initial value:

= {
    -9.517657273819165e-08, -1.6744288576823017e-07,
    2.0637618513646814e-06, 3.7346551751414047e-06,
    -2.1315026809955787e-05, -4.134043227251251e-05,
    0.00014054114970203437, 0.00030225958181306315,
    -0.0006381313430451114, -0.0016628637020130838,
    0.0024333732126576722, 0.006764185448053083,
    -0.009164231162481846, -0.01976177894257264,
    0.03268357426711183, 0.0412892087501817,
    -0.10557420870333893, -0.06203596396290357,
    0.4379916261718371, 0.7742896036529562,
    0.4215662066908515, -0.05204316317624377,
    -0.09192001055969624, 0.02816802897093635,
    0.023408156785839195, -0.010131117519849788,
    -0.004159358781386048, 0.0021782363581090178,
    0.00035858968789573785, -0.00021208083980379827,
}

Definition at line 188 of file af_afwtdn.c.

Referenced by config_output().

coif5_hp

const double coif5_hp[30]

static

Initial value:

= {
    0.00021208083980379827, 0.00035858968789573785,
    -0.0021782363581090178, -0.004159358781386048,
    0.010131117519849788, 0.023408156785839195,
    -0.02816802897093635, -0.09192001055969624,
    0.05204316317624377, 0.4215662066908515,
    -0.7742896036529562, 0.4379916261718371,
    0.06203596396290357, -0.10557420870333893,
    -0.0412892087501817, 0.03268357426711183,
    0.01976177894257264, -0.009164231162481846,
    -0.006764185448053083, 0.0024333732126576722,
    0.0016628637020130838, -0.0006381313430451114,
    -0.00030225958181306315, 0.00014054114970203437,
    4.134043227251251e-05, -2.1315026809955787e-05,
    -3.7346551751414047e-06, 2.0637618513646814e-06,
    1.6744288576823017e-07, -9.517657273819165e-08,
}

Definition at line 206 of file af_afwtdn.c.

Referenced by config_output().

coif5_ilp

const double coif5_ilp[30]

static

Initial value:

= {
    -0.00021208083980379827, 0.00035858968789573785,
    0.0021782363581090178, -0.004159358781386048,
    -0.010131117519849788, 0.023408156785839195,
    0.02816802897093635, -0.09192001055969624,
    -0.05204316317624377, 0.4215662066908515,
    0.7742896036529562, 0.4379916261718371,
    -0.06203596396290357, -0.10557420870333893,
    0.0412892087501817, 0.03268357426711183,
    -0.01976177894257264, -0.009164231162481846,
    0.006764185448053083, 0.0024333732126576722,
    -0.0016628637020130838, -0.0006381313430451114,
    0.00030225958181306315, 0.00014054114970203437,
    -4.134043227251251e-05, -2.1315026809955787e-05,
    3.7346551751414047e-06, 2.0637618513646814e-06,
    -1.6744288576823017e-07, -9.517657273819165e-08,
}

Definition at line 224 of file af_afwtdn.c.

Referenced by config_output().

coif5_ihp

const double coif5_ihp[30]

static

Initial value:

= {
    -9.517657273819165e-08, 1.6744288576823017e-07,
    2.0637618513646814e-06, -3.7346551751414047e-06,
    -2.1315026809955787e-05, 4.134043227251251e-05,
    0.00014054114970203437, -0.00030225958181306315,
    -0.0006381313430451114, 0.0016628637020130838,
    0.0024333732126576722, -0.006764185448053083,
    -0.009164231162481846, 0.01976177894257264,
    0.03268357426711183, -0.0412892087501817,
    -0.10557420870333893, 0.06203596396290357,
    0.4379916261718371, -0.7742896036529562,
    0.4215662066908515, 0.05204316317624377,
    -0.09192001055969624, -0.02816802897093635,
    0.023408156785839195, 0.010131117519849788,
    -0.004159358781386048, -0.0021782363581090178,
    0.00035858968789573785, 0.00021208083980379827,
}

Definition at line 242 of file af_afwtdn.c.

Referenced by config_output().

deb10_lp

const double deb10_lp[20]

static

Initial value:

= {
    -1.326420300235487e-05, 9.358867000108985e-05,
    -0.0001164668549943862, -0.0006858566950046825,
    0.00199240529499085, 0.0013953517469940798,
    -0.010733175482979604, 0.0036065535669883944,
    0.03321267405893324, -0.02945753682194567,
    -0.07139414716586077, 0.09305736460380659,
    0.12736934033574265, -0.19594627437659665,
    -0.24984642432648865, 0.2811723436604265,
    0.6884590394525921, 0.5272011889309198,
    0.18817680007762133, 0.026670057900950818,
}

Definition at line 260 of file af_afwtdn.c.

Referenced by config_output().

deb10_hp

const double deb10_hp[20]

static

Initial value:

= {
    -0.026670057900950818, 0.18817680007762133,
    -0.5272011889309198, 0.6884590394525921,
    -0.2811723436604265, -0.24984642432648865,
    0.19594627437659665, 0.12736934033574265,
    -0.09305736460380659, -0.07139414716586077,
    0.02945753682194567, 0.03321267405893324,
    -0.0036065535669883944, -0.010733175482979604,
    -0.0013953517469940798, 0.00199240529499085,
    0.0006858566950046825, -0.0001164668549943862,
    -9.358867000108985e-05, -1.326420300235487e-05,
}

Definition at line 273 of file af_afwtdn.c.

Referenced by config_output().

deb10_ilp

const double deb10_ilp[20]

static

Initial value:

= {
    0.026670057900950818, 0.18817680007762133,
    0.5272011889309198, 0.6884590394525921,
    0.2811723436604265, -0.24984642432648865,
    -0.19594627437659665, 0.12736934033574265,
    0.09305736460380659, -0.07139414716586077,
    -0.02945753682194567, 0.03321267405893324,
    0.0036065535669883944, -0.010733175482979604,
    0.0013953517469940798, 0.00199240529499085,
    -0.0006858566950046825, -0.0001164668549943862,
    9.358867000108985e-05, -1.326420300235487e-05,
}

Definition at line 286 of file af_afwtdn.c.

Referenced by config_output().

deb10_ihp

const double deb10_ihp[20]

static

Initial value:

= {
    -1.326420300235487e-05, -9.358867000108985e-05,
    -0.0001164668549943862, 0.0006858566950046825,
    0.00199240529499085, -0.0013953517469940798,
    -0.010733175482979604, -0.0036065535669883944,
    0.03321267405893324, 0.02945753682194567,
    -0.07139414716586077, -0.09305736460380659,
    0.12736934033574265, 0.19594627437659665,
    -0.24984642432648865, -0.2811723436604265,
    0.6884590394525921, -0.5272011889309198,
    0.18817680007762133, -0.026670057900950818,
}

Definition at line 299 of file af_afwtdn.c.

Referenced by config_output().

sym4_lp

const double sym4_lp[8]

static

Initial value:

= {
    -0.07576571478927333,
    -0.02963552764599851,
    0.49761866763201545,
    0.8037387518059161,
    0.29785779560527736,
    -0.09921954357684722,
    -0.012603967262037833,
    0.0322231006040427,
}

Definition at line 312 of file af_afwtdn.c.

Referenced by config_output().

sym4_hp

const double sym4_hp[8]

static

Initial value:

= {
    -0.0322231006040427,
    -0.012603967262037833,
    0.09921954357684722,
    0.29785779560527736,
    -0.8037387518059161,
    0.49761866763201545,
    0.02963552764599851,
    -0.07576571478927333,
}

Definition at line 323 of file af_afwtdn.c.

Referenced by config_output().

sym4_ilp

const double sym4_ilp[8]

static

Initial value:

= {
    0.0322231006040427,
    -0.012603967262037833,
    -0.09921954357684722,
    0.29785779560527736,
    0.8037387518059161,
    0.49761866763201545,
    -0.02963552764599851,
    -0.07576571478927333,
}

Definition at line 334 of file af_afwtdn.c.

Referenced by config_output().

sym4_ihp

const double sym4_ihp[8]

static

Initial value:

= {
    -0.07576571478927333,
    0.02963552764599851,
    0.49761866763201545,
    -0.8037387518059161,
    0.29785779560527736,
    0.09921954357684722,
    -0.012603967262037833,
    -0.0322231006040427,
}

Definition at line 345 of file af_afwtdn.c.

Referenced by config_output().

sym2_lp

const double sym2_lp[4]

static

Initial value:

= {
    -0.12940952255092145, 0.22414386804185735,
    0.836516303737469, 0.48296291314469025,
}

Definition at line 356 of file af_afwtdn.c.

Referenced by config_output().

sym2_hp

const double sym2_hp[4]

static

Initial value:

= {
    -0.48296291314469025, 0.836516303737469,
    -0.22414386804185735, -0.12940952255092145,
}

Definition at line 361 of file af_afwtdn.c.

Referenced by config_output().

sym2_ilp

const double sym2_ilp[4]

static

Initial value:

= {
    0.48296291314469025, 0.836516303737469,
    0.22414386804185735, -0.12940952255092145,
}

Definition at line 366 of file af_afwtdn.c.

Referenced by config_output().

sym2_ihp

const double sym2_ihp[4]

static

Initial value:

= {
    -0.12940952255092145, -0.22414386804185735,
    0.836516303737469, -0.48296291314469025,
}

Definition at line 371 of file af_afwtdn.c.

Referenced by config_output().

afwtdn_options

const AVOption afwtdn_options[]

static

Initial value:

= {
    { "sigma", "set noise sigma", OFFSET(sigma), AV_OPT_TYPE_DOUBLE, {.dbl=0}, 0, 1, AFR },
    { "levels", "set number of wavelet levels", OFFSET(levels), AV_OPT_TYPE_INT, {.i64=10}, 1, MAX_LEVELS-1, AF },
    { "wavet", "set wavelet type", OFFSET(wavelet_type), AV_OPT_TYPE_INT, {.i64=SYM10}, 0, NB_WAVELET_TYPES - 1, AF, "wavet" },
    { "sym2", "sym2", 0, AV_OPT_TYPE_CONST, {.i64=SYM2}, 0, 0, AF, "wavet" },
    { "sym4", "sym4", 0, AV_OPT_TYPE_CONST, {.i64=SYM4}, 0, 0, AF, "wavet" },
    { "rbior68", "rbior68", 0, AV_OPT_TYPE_CONST, {.i64=RBIOR68}, 0, 0, AF, "wavet" },
    { "deb10", "deb10", 0, AV_OPT_TYPE_CONST, {.i64=DEB10}, 0, 0, AF, "wavet" },
    { "sym10", "sym10", 0, AV_OPT_TYPE_CONST, {.i64=SYM10}, 0, 0, AF, "wavet" },
    { "coif5", "coif5", 0, AV_OPT_TYPE_CONST, {.i64=COIF5}, 0, 0, AF, "wavet" },
    { "bl3", "bl3", 0, AV_OPT_TYPE_CONST, {.i64=BL3}, 0, 0, AF, "wavet" },
    { "percent", "set percent of full denoising", OFFSET(percent),AV_OPT_TYPE_DOUBLE, {.dbl=85}, 0, 100, AFR },
    { "profile", "profile noise", OFFSET(need_profile), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, AFR },
    { "adaptive", "adaptive profiling of noise", OFFSET(adaptive), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, AFR },
    { "samples", "set frame size in number of samples", OFFSET(nb_samples), AV_OPT_TYPE_INT, {.i64=8192}, 512, 65536, AF },
    { "softness", "set thresholding softness", OFFSET(softness), AV_OPT_TYPE_DOUBLE, {.dbl=1}, 0, 10, AFR },
    { NULL }
}

Definition at line 441 of file af_afwtdn.c.

outputs

const AVFilterPad outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_AUDIO,
        .config_props  = config_output,
    },
}

Examples

decode_filter_audio.c, decode_filter_video.c, and transcode.c.

Definition at line 1291 of file af_afwtdn.c.

Referenced by avfilter_graph_parse(), avfilter_graph_parse2(), avfilter_graph_parse_ptr(), avfilter_graph_segment_apply(), avfilter_graph_segment_link(), configure_filtergraph(), fg_create(), graph_parse(), infer_completion_callback(), init(), init_filter(), init_filters(), and link_outputs().

ff_af_afwtdn

const AVFilter ff_af_afwtdn

Initial value:

= {
    .name            = "afwtdn",
    .description     = NULL_IF_CONFIG_SMALL("Denoise audio stream using Wavelets."),
    .priv_size       = sizeof(AudioFWTDNContext),
    .priv_class      = &afwtdn_class,
    .activate        = activate,
    .uninit          = uninit,
    FILTER_INPUTS(ff_audio_default_filterpad),
    FILTER_OUTPUTS(outputs),
    FILTER_SINGLE_SAMPLEFMT(AV_SAMPLE_FMT_DBLP),
    .process_command = process_command,
    .flags           = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
                       AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 1299 of file af_afwtdn.c.