FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
vf_fftfilt.c File Reference
#include "filters.h"
#include "video.h"
#include "libavutil/common.h"
#include "libavutil/cpu.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavutil/tx.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 (float *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 []
 
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 37 of file vf_fftfilt.c.

◆ MAX_PLANES

#define MAX_PLANES   4

Definition at line 38 of file vf_fftfilt.c.

◆ OFFSET

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

Definition at line 89 of file vf_fftfilt.c.

◆ FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 90 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 40 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 85 of file vf_fftfilt.c.

◆ anonymous enum

anonymous enum
Enumerator
Y 
U 
V 

Definition at line 87 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 107 of file vf_fftfilt.c.

Referenced by ff_rotate_slice(), ff_sws_init_range_convert_riscv(), 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 113 of file vf_fftfilt.c.

Referenced by initialize().

◆ weight_U()

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

Definition at line 114 of file vf_fftfilt.c.

Referenced by initialize().

◆ weight_V()

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

Definition at line 115 of file vf_fftfilt.c.

Referenced by initialize().

◆ copy_rev()

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

Definition at line 117 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 128 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 159 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 190 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 220 of file vf_fftfilt.c.

Referenced by config_props().

◆ initialize()

static av_cold int initialize ( AVFilterContext *  ctx)
static

Definition at line 251 of file vf_fftfilt.c.

◆ do_eval()

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

Definition at line 285 of file vf_fftfilt.c.

Referenced by config_props(), and filter_frame().

◆ config_props()

static int config_props ( AVFilterLink *  inlink)
static

Definition at line 307 of file vf_fftfilt.c.

◆ multiply_data()

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

Definition at line 393 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 414 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 439 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 458 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 477 of file vf_fftfilt.c.

Referenced by filter_frame().

◆ filter_frame()

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

Definition at line 499 of file vf_fftfilt.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext *  ctx)
static

Definition at line 547 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 84 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, .unit = "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 92 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 567 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 586 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(ff_video_default_filterpad),
FILTER_PIXFMTS_ARRAY(pixel_fmts_fftfilt),
.init = initialize,
.uninit = uninit,
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 595 of file vf_fftfilt.c.

FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: filters.h:242
config_props
static int config_props(AVFilterLink *inlink)
Definition: vf_fftfilt.c:307
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: filters.h:262
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:502
V
@ V
Definition: vf_fftfilt.c:87
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:482
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_fftfilt.c:547
EVAL_MODE_FRAME
@ EVAL_MODE_FRAME
Definition: vf_fftfilt.c:42
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:500
Y
@ Y
Definition: vf_fftfilt.c:87
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:486
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:505
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:514
ff_video_default_filterpad
const AVFilterPad ff_video_default_filterpad[1]
An AVFilterPad array whose only entry has name "default" and is of type AVMEDIA_TYPE_VIDEO.
Definition: video.c:37
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:86
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:515
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:499
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:513
OFFSET
#define OFFSET(x)
Definition: vf_fftfilt.c:89
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:485
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:73
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: filters.h:263
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:87
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:483
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:85
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:503
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
initialize
static av_cold int initialize(AVFilterContext *ctx)
Definition: vf_fftfilt.c:251
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:94
FFTFILTContext
Definition: vf_fftfilt.c:46
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:507
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:509
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:182
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:501
fftfilt_inputs
static const AVFilterPad fftfilt_inputs[]
Definition: vf_fftfilt.c:586
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:506
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:511
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_fftfilt.c:499
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition: opt.h:259
pixel_fmts_fftfilt
static enum AVPixelFormat pixel_fmts_fftfilt[]
Definition: vf_fftfilt.c:567
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:78
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:152
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:77
EVAL_MODE_INIT
@ EVAL_MODE_INIT
Definition: vf_fftfilt.c:41
U
@ U
Definition: vf_fftfilt.c:87
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:512
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Underlying C type is a uint8_t* that is either NULL or points to a C string allocated with the av_mal...
Definition: opt.h:276
FLAGS
#define FLAGS
Definition: vf_fftfilt.c:90
EVAL_MODE_NB
@ EVAL_MODE_NB
Definition: vf_fftfilt.c:43
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:484
AV_OPT_TYPE_CONST
@ AV_OPT_TYPE_CONST
Special option type for declaring named constants.
Definition: opt.h:299
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:510
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