FFmpeg
Data Structures | Macros | Functions | Variables
vf_median.c File Reference
#include "libavutil/avassert.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "median.h"
#include "video.h"
#include "median_template.c"

Go to the source code of this file.

Data Structures

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

Macros

#define DEPTH   8
 
#define DEPTH   9
 
#define DEPTH   10
 
#define DEPTH   12
 
#define DEPTH   14
 
#define DEPTH   16
 
#define OFFSET(x)   offsetof(MedianContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 

Functions

 AVFILTER_DEFINE_CLASS (median)
 
static void hadd (htype *dst, const htype *src, int bins)
 
static void hsub (htype *dst, const htype *src, int bins)
 
static void hmuladd (htype *dst, const htype *src, int f, int bins)
 
static int query_formats (AVFilterContext *ctx)
 
static void check_params (MedianContext *s, AVFilterLink *inlink)
 
static int config_input (AVFilterLink *inlink)
 
static int filter_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
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 AVOption median_options []
 
static const AVFilterPad median_inputs []
 
static const AVFilterPad median_outputs []
 
const AVFilter ff_vf_median
 

Macro Definition Documentation

◆ DEPTH [1/6]

#define DEPTH   8

Definition at line 53 of file vf_median.c.

◆ DEPTH [2/6]

#define DEPTH   9

Definition at line 53 of file vf_median.c.

◆ DEPTH [3/6]

#define DEPTH   10

Definition at line 53 of file vf_median.c.

◆ DEPTH [4/6]

#define DEPTH   12

Definition at line 53 of file vf_median.c.

◆ DEPTH [5/6]

#define DEPTH   14

Definition at line 53 of file vf_median.c.

◆ DEPTH [6/6]

#define DEPTH   16

Definition at line 53 of file vf_median.c.

◆ OFFSET

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

Definition at line 56 of file vf_median.c.

◆ FLAGS

Definition at line 57 of file vf_median.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( median  )

◆ hadd()

static void hadd ( htype dst,
const htype src,
int  bins 
)
static

Definition at line 69 of file vf_median.c.

Referenced by config_input().

◆ hsub()

static void hsub ( htype dst,
const htype src,
int  bins 
)
static

◆ hmuladd()

static void hmuladd ( htype dst,
const htype src,
int  f,
int  bins 
)
static

Definition at line 81 of file vf_median.c.

Referenced by config_input().

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 87 of file vf_median.c.

◆ check_params()

static void check_params ( MedianContext s,
AVFilterLink inlink 
)
static

Definition at line 114 of file vf_median.c.

Referenced by config_input(), and process_command().

◆ config_input()

static int config_input ( AVFilterLink inlink)
static

Definition at line 134 of file vf_median.c.

◆ filter_slice()

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

Definition at line 185 of file vf_median.c.

Referenced by filter_frame().

◆ filter_frame()

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 218 of file vf_median.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 240 of file vf_median.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 253 of file vf_median.c.

Variable Documentation

◆ median_options

const AVOption median_options[]
static
Initial value:
= {
{ "radius", "set median radius", OFFSET(radius), AV_OPT_TYPE_INT, {.i64=1}, 1, 127, FLAGS },
{ "planes", "set planes to filter", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
{ "radiusV", "set median vertical radius", OFFSET(radiusV), AV_OPT_TYPE_INT, {.i64=0},0, 127, FLAGS },
{ "percentile", "set median percentile", OFFSET(percentile), AV_OPT_TYPE_FLOAT, {.dbl=.5}, 0., 1., FLAGS },
{ NULL }
}

Definition at line 59 of file vf_median.c.

◆ median_inputs

const AVFilterPad median_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
}

Definition at line 270 of file vf_median.c.

◆ median_outputs

const AVFilterPad median_outputs[]
static
Initial value:
= {
{
.name = "default",
},
{ NULL }
}

Definition at line 280 of file vf_median.c.

◆ ff_vf_median

const AVFilter ff_vf_median
Initial value:
= {
.name = "median",
.description = NULL_IF_CONFIG_SMALL("Apply Median filter."),
.priv_size = sizeof(MedianContext),
.priv_class = &median_class,
}

Definition at line 288 of file vf_median.c.

MedianContext
Definition: median.h:28
OFFSET
#define OFFSET(x)
Definition: vf_median.c:56
median_inputs
static const AVFilterPad median_inputs[]
Definition: vf_median.c:270
inputs
these buffered frames must be flushed immediately if a new input produces new the filter must not call request_frame to get more It must just process the frame or queue it The task of requesting more frames is left to the filter s request_frame method or the application If a filter has several inputs
Definition: filter_design.txt:243
outputs
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
NULL
#define NULL
Definition: coverity.c:32
FLAGS
#define FLAGS
Definition: vf_median.c:57
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_median.c:134
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
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_median.c:240
query_formats
static int query_formats(AVFilterContext *ctx)
Definition: vf_median.c:87
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:126
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
filter_frame
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_median.c:218
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: vf_median.c:253
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
planes
static const struct @322 planes[]
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:117
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:561
median_outputs
static const AVFilterPad median_outputs[]
Definition: vf_median.c:280