FFmpeg
Data Structures | Macros | Functions | Variables
vf_deband.c File Reference
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  DebandContext
 
struct  ThreadData
 Used for passing data between threads. More...
 

Macros

#define OFFSET(x)   offsetof(DebandContext, x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 

Functions

 AVFILTER_DEFINE_CLASS (deband)
 
static int query_formats (const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
 
static float frand (int x, int y)
 
static int get_avg (int ref0, int ref1, int ref2, int ref3)
 
static int deband_8_c (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int deband_8_coupling_c (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int deband_16_coupling_c (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int deband_16_c (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int config_input (AVFilterLink *inlink)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static int process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption deband_options []
 
static const AVFilterPad avfilter_vf_deband_inputs []
 
const AVFilter ff_vf_deband
 

Macro Definition Documentation

◆ OFFSET

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

Definition at line 53 of file vf_deband.c.

◆ FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 54 of file vf_deband.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( deband  )

◆ query_formats()

static int query_formats ( const AVFilterContext *  ctx,
AVFilterFormatsConfig **  cfg_in,
AVFilterFormatsConfig **  cfg_out 
)
static

Definition at line 74 of file vf_deband.c.

◆ frand()

static float frand ( int  x,
int  y 
)
static

Definition at line 119 of file vf_deband.c.

Referenced by config_input().

◆ get_avg()

static int get_avg ( int  ref0,
int  ref1,
int  ref2,
int  ref3 
)
inlinestatic

Definition at line 126 of file vf_deband.c.

Referenced by deband_16_c(), deband_16_coupling_c(), deband_8_c(), and deband_8_coupling_c().

◆ deband_8_c()

static int deband_8_c ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 135 of file vf_deband.c.

Referenced by config_input().

◆ deband_8_coupling_c()

static int deband_8_coupling_c ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 184 of file vf_deband.c.

Referenced by config_input().

◆ deband_16_coupling_c()

static int deband_16_coupling_c ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 249 of file vf_deband.c.

Referenced by config_input().

◆ deband_16_c()

static int deband_16_c ( AVFilterContext *  ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 316 of file vf_deband.c.

Referenced by config_input().

◆ config_input()

static int config_input ( AVFilterLink *  inlink)
static

Definition at line 365 of file vf_deband.c.

Referenced by process_command().

◆ filter_frame()

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

Definition at line 414 of file vf_deband.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 438 of file vf_deband.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext *  ctx)
static

Definition at line 449 of file vf_deband.c.

Variable Documentation

◆ deband_options

const AVOption deband_options[]
static
Initial value:
= {
{ "1thr", "set 1st plane threshold", OFFSET(threshold[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
{ "2thr", "set 2nd plane threshold", OFFSET(threshold[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
{ "3thr", "set 3rd plane threshold", OFFSET(threshold[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
{ "4thr", "set 4th plane threshold", OFFSET(threshold[3]), AV_OPT_TYPE_FLOAT, {.dbl=0.02}, 0.00003, 0.5, FLAGS },
{ "range", "set range", OFFSET(range), AV_OPT_TYPE_INT, {.i64=16}, INT_MIN, INT_MAX, FLAGS },
{ "r", "set range", OFFSET(range), AV_OPT_TYPE_INT, {.i64=16}, INT_MIN, INT_MAX, FLAGS },
{ "direction", "set direction", OFFSET(direction), AV_OPT_TYPE_FLOAT, {.dbl=2*M_PI},-2*M_PI, 2*M_PI, FLAGS },
{ "d", "set direction", OFFSET(direction), AV_OPT_TYPE_FLOAT, {.dbl=2*M_PI},-2*M_PI, 2*M_PI, FLAGS },
{ "blur", "set blur", OFFSET(blur), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
{ "b", "set blur", OFFSET(blur), AV_OPT_TYPE_BOOL, {.i64=1}, 0, 1, FLAGS },
{ "coupling", "set plane coupling", OFFSET(coupling), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
{ "c", "set plane coupling", OFFSET(coupling), AV_OPT_TYPE_BOOL, {.i64=0}, 0, 1, FLAGS },
{ NULL }
}

Definition at line 56 of file vf_deband.c.

◆ avfilter_vf_deband_inputs

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

Definition at line 457 of file vf_deband.c.

◆ ff_vf_deband

const AVFilter ff_vf_deband
Initial value:
= {
.name = "deband",
.description = NULL_IF_CONFIG_SMALL("Debands video."),
.priv_size = sizeof(DebandContext),
.priv_class = &deband_class,
.uninit = uninit,
FILTER_INPUTS(avfilter_vf_deband_inputs),
FILTER_OUTPUTS(ff_video_default_filterpad),
FILTER_QUERY_FUNC2(query_formats),
.flags = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
.process_command = process_command,
}

Definition at line 466 of file vf_deband.c.

FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: filters.h:262
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_deband.c:365
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_deband.c:414
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
FLAGS
#define FLAGS
Definition: vf_deband.c:54
query_formats
static int query_formats(const AVFilterContext *ctx, AVFilterFormatsConfig **cfg_in, AVFilterFormatsConfig **cfg_out)
Definition: vf_deband.c:74
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: filters.h:263
NULL
#define NULL
Definition: coverity.c:32
DebandContext
Definition: vf_deband.c:32
blur
static void blur(uint8_t *dst, int dst_step, const uint8_t *src, int src_step, int len, int radius, int pixsize)
Definition: vf_boxblur.c:162
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
range
enum AVColorRange range
Definition: mediacodec_wrapper.c:2594
avfilter_vf_deband_inputs
static const AVFilterPad avfilter_vf_deband_inputs[]
Definition: vf_deband.c:457
M_PI
#define M_PI
Definition: mathematics.h:67
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_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Underlying C type is float.
Definition: opt.h:271
FILTER_QUERY_FUNC2
#define FILTER_QUERY_FUNC2(func)
Definition: filters.h:239
OFFSET
#define OFFSET(x)
Definition: vf_deband.c:53
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Underlying C type is int.
Definition: opt.h:259
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_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Underlying C type is int.
Definition: opt.h:327
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_deband.c:438
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_deband.c:449
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