FFmpeg
Data Structures | Macros | Functions | Variables
vf_colorcontrast.c File Reference
#include <float.h>
#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "avfilter.h"
#include "drawutils.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  ColorContrastContext
 

Macros

#define R   0
 
#define G   1
 
#define B   2
 
#define PROCESS(max)
 
#define OFFSET(x)   offsetof(ColorContrastContext, x)
 
#define VF   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 

Functions

static float lerpf (float v0, float v1, float f)
 
static int colorcontrast_slice8 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int colorcontrast_slice16 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int colorcontrast_slice8p (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int colorcontrast_slice16p (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter_frame (AVFilterLink *link, AVFrame *frame)
 
static av_cold int config_input (AVFilterLink *inlink)
 
 AVFILTER_DEFINE_CLASS (colorcontrast)
 

Variables

static enum AVPixelFormat pixel_fmts []
 
static const AVFilterPad colorcontrast_inputs []
 
static const AVFilterPad colorcontrast_outputs []
 
static const AVOption colorcontrast_options []
 
const AVFilter ff_vf_colorcontrast
 

Macro Definition Documentation

◆ R

#define R   0

Definition at line 31 of file vf_colorcontrast.c.

◆ G

#define G   1

Definition at line 32 of file vf_colorcontrast.c.

◆ B

#define B   2

Definition at line 33 of file vf_colorcontrast.c.

◆ PROCESS

#define PROCESS (   max)

Definition at line 55 of file vf_colorcontrast.c.

◆ OFFSET

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

Definition at line 369 of file vf_colorcontrast.c.

◆ VF

Definition at line 370 of file vf_colorcontrast.c.

Function Documentation

◆ lerpf()

static float lerpf ( float  v0,
float  v1,
float  f 
)
inlinestatic

Definition at line 50 of file vf_colorcontrast.c.

◆ colorcontrast_slice8()

static int colorcontrast_slice8 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 92 of file vf_colorcontrast.c.

Referenced by config_input().

◆ colorcontrast_slice16()

static int colorcontrast_slice16 ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 144 of file vf_colorcontrast.c.

Referenced by config_input().

◆ colorcontrast_slice8p()

static int colorcontrast_slice8p ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 198 of file vf_colorcontrast.c.

Referenced by config_input().

◆ colorcontrast_slice16p()

static int colorcontrast_slice16p ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 248 of file vf_colorcontrast.c.

Referenced by config_input().

◆ filter_frame()

static int filter_frame ( AVFilterLink link,
AVFrame frame 
)
static

Definition at line 300 of file vf_colorcontrast.c.

◆ config_input()

static av_cold int config_input ( AVFilterLink inlink)
static

Definition at line 328 of file vf_colorcontrast.c.

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( colorcontrast  )

Variable Documentation

◆ pixel_fmts

enum AVPixelFormat pixel_fmts[]
static

◆ colorcontrast_inputs

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

Definition at line 352 of file vf_colorcontrast.c.

◆ colorcontrast_outputs

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

Definition at line 362 of file vf_colorcontrast.c.

◆ colorcontrast_options

const AVOption colorcontrast_options[]
static
Initial value:
= {
{ "rc", "set the red-cyan contrast", OFFSET(rc), AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
{ "gm", "set the green-magenta contrast", OFFSET(gm), AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
{ "by", "set the blue-yellow contrast", OFFSET(by), AV_OPT_TYPE_FLOAT, {.dbl=0}, -1, 1, VF },
{ "rcw", "set the red-cyan weight", OFFSET(rcw), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, 1, VF },
{ "gmw", "set the green-magenta weight", OFFSET(gmw), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, 1, VF },
{ "byw", "set the blue-yellow weight", OFFSET(byw), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, 1, VF },
{ "pl", "set the amount of preserving lightness", OFFSET(preserve), AV_OPT_TYPE_FLOAT, {.dbl=0}, 0, 1, VF },
{ NULL }
}

Definition at line 372 of file vf_colorcontrast.c.

◆ ff_vf_colorcontrast

const AVFilter ff_vf_colorcontrast
Initial value:
= {
.name = "colorcontrast",
.description = NULL_IF_CONFIG_SMALL("Adjust color contrast between RGB components."),
.priv_size = sizeof(ColorContrastContext),
.priv_class = &colorcontrast_class,
.process_command = ff_filter_process_command,
}

Definition at line 385 of file vf_colorcontrast.c.

AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:430
VF
#define VF
Definition: vf_colorcontrast.c:370
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:170
AV_PIX_FMT_BGR24
@ AV_PIX_FMT_BGR24
packed RGB 8:8:8, 24bpp, BGRBGR...
Definition: pixfmt.h:69
AV_PIX_FMT_BGRA
@ AV_PIX_FMT_BGRA
packed BGRA 8:8:8:8, 32bpp, BGRABGRA...
Definition: pixfmt.h:95
OFFSET
#define OFFSET(x)
Definition: vf_colorcontrast.c:369
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:426
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:205
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:424
ColorContrastContext
Definition: vf_colorcontrast.c:35
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:428
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:429
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
AV_PIX_FMT_RGBA
@ AV_PIX_FMT_RGBA
packed RGBA 8:8:8:8, 32bpp, RGBARGBA...
Definition: pixfmt.h:93
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:427
AV_PIX_FMT_RGBA64
#define AV_PIX_FMT_RGBA64
Definition: pixfmt.h:398
AV_PIX_FMT_BGR48
#define AV_PIX_FMT_BGR48
Definition: pixfmt.h:399
NULL
#define NULL
Definition: coverity.c:32
AV_PIX_FMT_BGR0
@ AV_PIX_FMT_BGR0
packed BGR 8:8:8, 32bpp, BGRXBGRX... X=unused/undefined
Definition: pixfmt.h:230
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:423
AV_PIX_FMT_ABGR
@ AV_PIX_FMT_ABGR
packed ABGR 8:8:8:8, 32bpp, ABGRABGR...
Definition: pixfmt.h:94
AV_PIX_FMT_RGB24
@ AV_PIX_FMT_RGB24
packed RGB 8:8:8, 24bpp, RGBRGB...
Definition: pixfmt.h:68
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
AV_PIX_FMT_RGB48
#define AV_PIX_FMT_RGB48
Definition: pixfmt.h:394
ff_filter_process_command
int ff_filter_process_command(AVFilterContext *ctx, const char *cmd, const char *arg, char *res, int res_len, int flags)
Generic processing of user supplied commands that are set in the same way as the filter options.
Definition: avfilter.c:863
AV_PIX_FMT_RGB0
@ AV_PIX_FMT_RGB0
packed RGB 8:8:8, 32bpp, RGBXRGBX... X=unused/undefined
Definition: pixfmt.h:228
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:152
AV_PIX_FMT_ARGB
@ AV_PIX_FMT_ARGB
packed ARGB 8:8:8:8, 32bpp, ARGBARGB...
Definition: pixfmt.h:92
AV_OPT_TYPE_FLOAT
@ AV_OPT_TYPE_FLOAT
Definition: opt.h:228
AV_PIX_FMT_BGRA64
#define AV_PIX_FMT_BGRA64
Definition: pixfmt.h:403
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:425
filter_frame
static int filter_frame(AVFilterLink *link, AVFrame *frame)
Definition: vf_colorcontrast.c:300
AV_PIX_FMT_0BGR
@ AV_PIX_FMT_0BGR
packed BGR 8:8:8, 32bpp, XBGRXBGR... X=unused/undefined
Definition: pixfmt.h:229
colorcontrast_outputs
static const AVFilterPad colorcontrast_outputs[]
Definition: vf_colorcontrast.c:362
pixel_fmts
static enum AVPixelFormat pixel_fmts[]
Definition: vf_colorcontrast.c:313
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
colorcontrast_inputs
static const AVFilterPad colorcontrast_inputs[]
Definition: vf_colorcontrast.c:352
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
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:127
AVMEDIA_TYPE_VIDEO
@ AVMEDIA_TYPE_VIDEO
Definition: avutil.h:201
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
AV_PIX_FMT_0RGB
@ AV_PIX_FMT_0RGB
packed RGB 8:8:8, 32bpp, XRGBXRGB... X=unused/undefined
Definition: pixfmt.h:227
config_input
static av_cold int config_input(AVFilterLink *inlink)
Definition: vf_colorcontrast.c:328
AVFILTERPAD_FLAG_NEEDS_WRITABLE
#define AVFILTERPAD_FLAG_NEEDS_WRITABLE
The filter expects writable frames from its input link, duplicating data buffers if needed.
Definition: internal.h:68