FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
vf_fftfilt.c File Reference
#include "libavfilter/internal.h"
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavcodec/avfft.h"
#include "libavutil/eval.h"

Go to the source code of this file.

Data Structures

struct  FFTFILTContext
 

Macros

#define MAX_THREADS   32
 
#define MAX_PLANES   4
 
#define OFFSET(x)   offsetof(FFTFILTContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
 

Enumerations

enum  EvalMode {
  EVAL_MODE_ONCE, EVAL_MODE_FRAME, EVAL_MODE_NB, EVAL_MODE_INIT,
  EVAL_MODE_FRAME, EVAL_MODE_NB, EVAL_MODE_INIT, EVAL_MODE_FRAME,
  EVAL_MODE_NB, EVAL_MODE_INIT, EVAL_MODE_FRAME, EVAL_MODE_NB,
  EVAL_MODE_INIT, EVAL_MODE_FRAME, EVAL_MODE_NB, EVAL_MODE_INIT,
  EVAL_MODE_FRAME, EVAL_MODE_NB, EVAL_MODE_INIT, EVAL_MODE_FRAME,
  EVAL_MODE_NB, EVAL_MODE_INIT, EVAL_MODE_FRAME, EVAL_MODE_NB,
  EVAL_MODE_INIT, EVAL_MODE_FRAME, EVAL_MODE_NB
}
 
enum  {
  VAR_X, VAR_Y, VAR_W, VAR_H,
  VAR_N, VAR_WS, VAR_HS, VAR_VARS_NB
}
 
enum  { Y = 0, U, V }
 

Functions

 AVFILTER_DEFINE_CLASS (fftfilt)
 
static double lum (void *priv, double x, double y, int plane)
 
static double weight_Y (void *priv, double x, double y)
 
static double weight_U (void *priv, double x, double y)
 
static double weight_V (void *priv, double x, double y)
 
static void copy_rev (FFTSample *dest, int w, int w2)
 
static int rdft_horizontal8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int rdft_horizontal16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int irdft_horizontal8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int irdft_horizontal16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static av_cold int initialize (AVFilterContext *ctx)
 
static void do_eval (FFTFILTContext *s, AVFilterLink *inlink, int plane)
 
static int config_props (AVFilterLink *inlink)
 
static int multiply_data (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int copy_vertical (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int rdft_vertical (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int irdft_vertical (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int copy_horizontal (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const char *const var_names [] = { "X", "Y", "W", "H", "N", "WS", "HS", NULL }
 
static const AVOption fftfilt_options []
 
static enum AVPixelFormat pixel_fmts_fftfilt []
 
static const AVFilterPad fftfilt_inputs []
 
static const AVFilterPad fftfilt_outputs []
 
const AVFilter ff_vf_fftfilt
 

Detailed Description

FFT domain filtering.

Definition in file vf_fftfilt.c.

Macro Definition Documentation

◆ MAX_THREADS

#define MAX_THREADS   32

Definition at line 35 of file vf_fftfilt.c.

◆ MAX_PLANES

#define MAX_PLANES   4

Definition at line 36 of file vf_fftfilt.c.

◆ OFFSET

#define OFFSET (   x)    offsetof(FFTFILTContext, x)

Definition at line 79 of file vf_fftfilt.c.

◆ FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 80 of file vf_fftfilt.c.

Enumeration Type Documentation

◆ EvalMode

enum EvalMode
Enumerator
EVAL_MODE_ONCE 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 
EVAL_MODE_INIT 
EVAL_MODE_FRAME 
EVAL_MODE_NB 

Definition at line 38 of file vf_fftfilt.c.

◆ anonymous enum

anonymous enum
Enumerator
VAR_X 
VAR_Y 
VAR_W 
VAR_H 
VAR_N 
VAR_WS 
VAR_HS 
VAR_VARS_NB 

Definition at line 75 of file vf_fftfilt.c.

◆ anonymous enum

anonymous enum
Enumerator
Y 
U 
V 

Definition at line 77 of file vf_fftfilt.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( fftfilt  )

◆ lum()

static double lum ( void *  priv,
double  x,
double  y,
int  plane 
)
inlinestatic

Definition at line 97 of file vf_fftfilt.c.

Referenced by ff_rotate_slice(), rgb24_to_yuv420p(), weight_U(), weight_V(), and weight_Y().

◆ weight_Y()

static double weight_Y ( void *  priv,
double  x,
double  y 
)
static

Definition at line 103 of file vf_fftfilt.c.

Referenced by initialize().

◆ weight_U()

static double weight_U ( void *  priv,
double  x,
double  y 
)
static

Definition at line 104 of file vf_fftfilt.c.

Referenced by initialize().

◆ weight_V()

static double weight_V ( void *  priv,
double  x,
double  y 
)
static

Definition at line 105 of file vf_fftfilt.c.

Referenced by initialize().

◆ copy_rev()

static void copy_rev ( FFTSample *  dest,
int  w,
int  w2 
)
static

Definition at line 107 of file vf_fftfilt.c.

Referenced by copy_vertical(), rdft_horizontal16(), and rdft_horizontal8().

◆ rdft_horizontal8()

static int rdft_horizontal8 ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 118 of file vf_fftfilt.c.

Referenced by config_props().

◆ rdft_horizontal16()

static int rdft_horizontal16 ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 146 of file vf_fftfilt.c.

Referenced by config_props().

◆ irdft_horizontal8()

static int irdft_horizontal8 ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 174 of file vf_fftfilt.c.

Referenced by config_props().

◆ irdft_horizontal16()

static int irdft_horizontal16 ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 201 of file vf_fftfilt.c.

Referenced by config_props().

◆ initialize()

static av_cold int initialize ( AVFilterContext *  ctx)
static

Definition at line 229 of file vf_fftfilt.c.

◆ do_eval()

static void do_eval ( FFTFILTContext *  s,
AVFilterLink *  inlink,
int  plane 
)
static

Definition at line 263 of file vf_fftfilt.c.

Referenced by config_props(), and filter_frame().

◆ config_props()

static int config_props ( AVFilterLink *  inlink)
static

Definition at line 284 of file vf_fftfilt.c.

◆ multiply_data()

static int multiply_data ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 352 of file vf_fftfilt.c.

Referenced by filter_frame().

◆ copy_vertical()

static int copy_vertical ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 373 of file vf_fftfilt.c.

Referenced by filter_frame().

◆ rdft_vertical()

static int rdft_vertical ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 396 of file vf_fftfilt.c.

Referenced by filter_frame().

◆ irdft_vertical()

static int irdft_vertical ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 412 of file vf_fftfilt.c.

Referenced by filter_frame().

◆ copy_horizontal()

static int copy_horizontal ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 428 of file vf_fftfilt.c.

Referenced by filter_frame().

◆ filter_frame()

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

Definition at line 449 of file vf_fftfilt.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext *  ctx)
static

Definition at line 497 of file vf_fftfilt.c.

Variable Documentation

◆ var_names

const char* const var_names[] = { "X", "Y", "W", "H", "N", "WS", "HS", NULL }
static

Definition at line 74 of file vf_fftfilt.c.

Referenced by initialize().

◆ fftfilt_options

const AVOption fftfilt_options[]
static
Initial value:
= {
{ "dc_Y", "adjust gain in Y plane", OFFSET(dc[Y]), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1000, FLAGS },
{ "dc_U", "adjust gain in U plane", OFFSET(dc[U]), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1000, FLAGS },
{ "dc_V", "adjust gain in V plane", OFFSET(dc[V]), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 1000, FLAGS },
{ "weight_Y", "set luminance expression in Y plane", OFFSET(weight_str[Y]), AV_OPT_TYPE_STRING, {.str = "1"}, 0, 0, FLAGS },
{ "weight_U", "set chrominance expression in U plane", OFFSET(weight_str[U]), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
{ "weight_V", "set chrominance expression in V plane", OFFSET(weight_str[V]), AV_OPT_TYPE_STRING, {.str = NULL}, 0, 0, FLAGS },
{ "eval", "specify when to evaluate expressions", OFFSET(eval_mode), AV_OPT_TYPE_INT, {.i64 = EVAL_MODE_INIT}, 0, EVAL_MODE_NB-1, FLAGS, "eval" },
{ "init", "eval expressions once during initialization", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_INIT}, .flags = FLAGS, .unit = "eval" },
{ "frame", "eval expressions per-frame", 0, AV_OPT_TYPE_CONST, {.i64=EVAL_MODE_FRAME}, .flags = FLAGS, .unit = "eval" },
{NULL},
}

Definition at line 82 of file vf_fftfilt.c.

◆ pixel_fmts_fftfilt

enum AVPixelFormat pixel_fmts_fftfilt[]
static
Initial value:
= {
AV_PIX_FMT_GRAY8,
AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12,
AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUVJ444P,
AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUVJ420P,
AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVJ422P,
AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV420P10,
AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV420P14,
AV_PIX_FMT_YUV420P16,
AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV422P10,
AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV422P14,
AV_PIX_FMT_YUV422P16,
AV_PIX_FMT_YUV444P9, AV_PIX_FMT_YUV444P10,
AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV444P14,
AV_PIX_FMT_YUV444P16,
AV_PIX_FMT_NONE
}

Definition at line 515 of file vf_fftfilt.c.

◆ fftfilt_inputs

const AVFilterPad fftfilt_inputs[]
static
Initial value:
= {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.config_props = config_props,
.filter_frame = filter_frame,
},
}

Definition at line 534 of file vf_fftfilt.c.

◆ fftfilt_outputs

const AVFilterPad fftfilt_outputs[]
static
Initial value:
= {
{
.name = "default",
.type = AVMEDIA_TYPE_VIDEO,
},
}

Definition at line 543 of file vf_fftfilt.c.

◆ ff_vf_fftfilt

const AVFilter ff_vf_fftfilt
Initial value:
= {
.name = "fftfilt",
.description = NULL_IF_CONFIG_SMALL("Apply arbitrary expressions to pixels in frequency domain."),
.priv_size = sizeof(FFTFILTContext),
.priv_class = &fftfilt_class,
FILTER_INPUTS(fftfilt_inputs),
FILTER_OUTPUTS(fftfilt_outputs),
FILTER_PIXFMTS_ARRAY(pixel_fmts_fftfilt),
.init = initialize,
.uninit = uninit,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 550 of file vf_fftfilt.c.

fftfilt_outputs
static const AVFilterPad fftfilt_outputs[]
Definition: vf_fftfilt.c:543
U
@ U
Definition: vf_fftfilt.c:77
config_props
static int config_props(AVFilterLink *inlink)
Definition: vf_fftfilt.c:284
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:171
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:404
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:384
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_fftfilt.c:497
EVAL_MODE_FRAME
@ EVAL_MODE_FRAME
Definition: vf_fftfilt.c:40
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:402
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:388
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:407
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:416
AV_PIX_FMT_YUVJ422P
@ AV_PIX_FMT_YUVJ422P
planar YUV 4:2:2, 16bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV422P and setting col...
Definition: pixfmt.h:79
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:417
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:401
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:415
OFFSET
#define OFFSET(x)
Definition: vf_fftfilt.c:79
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:387
AV_PIX_FMT_YUV420P
@ AV_PIX_FMT_YUV420P
planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
Definition: pixfmt.h:66
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:191
AV_PIX_FMT_YUVJ444P
@ AV_PIX_FMT_YUVJ444P
planar YUV 4:4:4, 24bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV444P and setting col...
Definition: pixfmt.h:80
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:385
NULL
#define NULL
Definition: coverity.c:32
AV_PIX_FMT_YUVJ420P
@ AV_PIX_FMT_YUVJ420P
planar YUV 4:2:0, 12bpp, full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV420P and setting col...
Definition: pixfmt.h:78
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:405
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
initialize
static av_cold int initialize(AVFilterContext *ctx)
Definition: vf_fftfilt.c:229
dc
Tag MUST be and< 10hcoeff half pel interpolation filter coefficients, hcoeff[0] are the 2 middle coefficients[1] are the next outer ones and so on, resulting in a filter like:...eff[2], hcoeff[1], hcoeff[0], hcoeff[0], hcoeff[1], hcoeff[2] ... the sign of the coefficients is not explicitly stored but alternates after each coeff and coeff[0] is positive, so ...,+,-,+,-,+,+,-,+,-,+,... hcoeff[0] is not explicitly stored but found by subtracting the sum of all stored coefficients with signs from 32 hcoeff[0]=32 - hcoeff[1] - hcoeff[2] - ... a good choice for hcoeff and htaps is htaps=6 hcoeff={40,-10, 2} an alternative which requires more computations at both encoder and decoder side and may or may not be better is htaps=8 hcoeff={42,-14, 6,-2}ref_frames minimum of the number of available reference frames and max_ref_frames for example the first frame after a key frame always has ref_frames=1spatial_decomposition_type wavelet type 0 is a 9/7 symmetric compact integer wavelet 1 is a 5/3 symmetric compact integer wavelet others are reserved stored as delta from last, last is reset to 0 if always_reset||keyframeqlog quality(logarithmic quantizer scale) stored as delta from last, last is reset to 0 if always_reset||keyframemv_scale stored as delta from last, last is reset to 0 if always_reset||keyframe FIXME check that everything works fine if this changes between framesqbias dequantization bias stored as delta from last, last is reset to 0 if always_reset||keyframeblock_max_depth maximum depth of the block tree stored as delta from last, last is reset to 0 if always_reset||keyframequant_table quantization tableHighlevel bitstream structure:==============================--------------------------------------------|Header|--------------------------------------------|------------------------------------|||Block0||||split?||||yes no||||......... intra?||||:Block01 :yes no||||:Block02 :....... ..........||||:Block03 ::y DC ::ref index:||||:Block04 ::cb DC ::motion x :||||......... :cr DC ::motion y :||||....... ..........|||------------------------------------||------------------------------------|||Block1|||...|--------------------------------------------|------------ ------------ ------------|||Y subbands||Cb subbands||Cr subbands||||--- ---||--- ---||--- ---|||||LL0||HL0||||LL0||HL0||||LL0||HL0|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||LH0||HH0||||LH0||HH0||||LH0||HH0|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||HL1||LH1||||HL1||LH1||||HL1||LH1|||||--- ---||--- ---||--- ---||||--- ---||--- ---||--- ---|||||HH1||HL2||||HH1||HL2||||HH1||HL2|||||...||...||...|||------------ ------------ ------------|--------------------------------------------Decoding process:=================------------|||Subbands|------------||||------------|Intra DC||||LL0 subband prediction ------------|\ Dequantization ------------------- \||Reference frames|\ IDWT|------- -------|Motion \|||Frame 0||Frame 1||Compensation . OBMC v -------|------- -------|--------------. \------> Frame n output Frame Frame<----------------------------------/|...|------------------- Range Coder:============Binary Range Coder:------------------- The implemented range coder is an adapted version based upon "Range encoding: an algorithm for removing redundancy from a digitised message." by G. N. N. Martin. The symbols encoded by the Snow range coder are bits(0|1). The associated probabilities are not fix but change depending on the symbol mix seen so far. bit seen|new state ---------+----------------------------------------------- 0|256 - state_transition_table[256 - old_state];1|state_transition_table[old_state];state_transition_table={ 0, 0, 0, 0, 0, 0, 0, 0, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 190, 191, 192, 194, 194, 195, 196, 197, 198, 199, 200, 201, 202, 202, 204, 205, 206, 207, 208, 209, 209, 210, 211, 212, 213, 215, 215, 216, 217, 218, 219, 220, 220, 222, 223, 224, 225, 226, 227, 227, 229, 229, 230, 231, 232, 234, 234, 235, 236, 237, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 248, 0, 0, 0, 0, 0, 0, 0};FIXME Range Coding of integers:------------------------- FIXME Neighboring Blocks:===================left and top are set to the respective blocks unless they are outside of the image in which case they are set to the Null block top-left is set to the top left block unless it is outside of the image in which case it is set to the left block if this block has no larger parent block or it is at the left side of its parent block and the top right block is not outside of the image then the top right block is used for top-right else the top-left block is used Null block y, cb, cr are 128 level, ref, mx and my are 0 Motion Vector Prediction:=========================1. the motion vectors of all the neighboring blocks are scaled to compensate for the difference of reference frames scaled_mv=(mv *(256 *(current_reference+1)/(mv.reference+1))+128)> the median of the scaled top and top right vectors is used as motion vector prediction the used motion vector is the sum of the predictor and(mvx_diff, mvy_diff) *mv_scale Intra DC Prediction block[y][x] dc[1]
Definition: snow.txt:400
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:117
FFTFILTContext
Definition: vf_fftfilt.c:44
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:409
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:411
AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:146
Y
@ Y
Definition: vf_fftfilt.c:77
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:403
fftfilt_inputs
static const AVFilterPad fftfilt_inputs[]
Definition: vf_fftfilt.c:534
V
@ V
Definition: vf_fftfilt.c:77
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:408
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:413
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_fftfilt.c:449
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
pixel_fmts_fftfilt
static enum AVPixelFormat pixel_fmts_fftfilt[]
Definition: vf_fftfilt.c:515
AV_PIX_FMT_YUV444P
@ AV_PIX_FMT_YUV444P
planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
Definition: pixfmt.h:71
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:121
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
AV_PIX_FMT_YUV422P
@ AV_PIX_FMT_YUV422P
planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
Definition: pixfmt.h:70
EVAL_MODE_INIT
@ EVAL_MODE_INIT
Definition: vf_fftfilt.c:39
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:192
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:414
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:228
FLAGS
#define FLAGS
Definition: vf_fftfilt.c:80
EVAL_MODE_NB
@ EVAL_MODE_NB
Definition: vf_fftfilt.c:41
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:386
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Definition: opt.h:233
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:412
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