FFmpeg
Data Structures | Macros | Typedefs | Enumerations | Functions | Variables
vf_selectivecolor.c File Reference
#include "libavutil/avassert.h"
#include "libavutil/file.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "libavcodec/mathops.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  process_range
 
struct  ThreadData
 Used for passing data between threads. More...
 
struct  SelectiveColorContext
 

Macros

#define R   0
 
#define G   1
 
#define B   2
 
#define A   3
 
#define OFFSET(x)   offsetof(SelectiveColorContext, x)
 
#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
 
#define RANGE_OPTION(color_name, range)   { color_name"s", "adjust "color_name" regions", OFFSET(opt_cmyk_adjust[range]), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS }
 
#define DECLARE_RANGE_SCALE_FUNCS(nbits)
 
#define READ16(dst)
 
#define DECLARE_SELECTIVE_COLOR_FUNC(nbits)
 
#define DEF_SELECTIVE_COLOR_FUNC(name, direct, correction_method, nbits)
 
#define DEF_SELECTIVE_COLOR_FUNCS(nbits)
 

Typedefs

typedef int(* get_range_scale_func) (int r, int g, int b, int min_val, int max_val)
 
typedef int(* selective_color_func_type) (AVFilterContext *ctx, void *td, int jobnr, int nb_jobs)
 

Enumerations

enum  color_range {
  RANGE_REDS, RANGE_YELLOWS, RANGE_GREENS, RANGE_CYANS,
  RANGE_BLUES, RANGE_MAGENTAS, RANGE_WHITES, RANGE_NEUTRALS,
  RANGE_BLACKS, NB_RANGES
}
 
enum  correction_method { CORRECTION_METHOD_ABSOLUTE, CORRECTION_METHOD_RELATIVE, NB_CORRECTION_METHODS }
 

Functions

 AVFILTER_DEFINE_CLASS (selectivecolor)
 
static int get_rgb_scale (int r, int g, int b, int min_val, int max_val)
 
static int get_cmy_scale (int r, int g, int b, int min_val, int max_val)
 
static int register_range (SelectiveColorContext *s, int range_id)
 
static int parse_psfile (AVFilterContext *ctx, const char *fname)
 
static int config_input (AVFilterLink *inlink)
 
static int query_formats (AVFilterContext *ctx)
 
static int comp_adjust (int scale, float value, float adjust, float k, int correction_method)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 

Variables

static const char * color_names [NB_RANGES]
 
static const AVOption selectivecolor_options []
 
static const AVFilterPad selectivecolor_inputs []
 
static const AVFilterPad selectivecolor_outputs []
 
AVFilter ff_vf_selectivecolor
 

Macro Definition Documentation

#define R   0
See also
http://blog.pkh.me/p/22-understanding-selective-coloring-in-adobe-photoshop.html
Todo:
  • use integers so it can be made bitexact and a FATE test can be added

Definition at line 39 of file vf_selectivecolor.c.

#define G   1

Definition at line 40 of file vf_selectivecolor.c.

#define B   2

Definition at line 41 of file vf_selectivecolor.c.

#define A   3

Definition at line 42 of file vf_selectivecolor.c.

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

Definition at line 93 of file vf_selectivecolor.c.

Definition at line 94 of file vf_selectivecolor.c.

#define RANGE_OPTION (   color_name,
  range 
)    { color_name"s", "adjust "color_name" regions", OFFSET(opt_cmyk_adjust[range]), AV_OPT_TYPE_STRING, {.str=NULL}, CHAR_MIN, CHAR_MAX, FLAGS }

Definition at line 95 of file vf_selectivecolor.c.

#define DECLARE_RANGE_SCALE_FUNCS (   nbits)
Value:
static int get_neutrals_scale##nbits(int r, int g, int b, int min_val, int max_val) \
{ \
/* 1 - (|max-0.5| + |min-0.5|) */ \
return (((1<<nbits)-1)*2 - ( abs((max_val<<1) - ((1<<nbits)-1)) \
+ abs((min_val<<1) - ((1<<nbits)-1))) + 1) >> 1; \
} \
\
static int get_whites_scale##nbits(int r, int g, int b, int min_val, int max_val) \
{ \
/* (min - 0.5) * 2 */ \
return (min_val<<1) - ((1<<nbits)-1); \
} \
\
static int get_blacks_scale##nbits(int r, int g, int b, int min_val, int max_val) \
{ \
/* (0.5 - max) * 2 */ \
return ((1<<nbits)-1) - (max_val<<1); \
} \
const char * g
Definition: vf_curves.c:115
const char * r
Definition: vf_curves.c:114
#define b
Definition: input.c:41
#define abs(x)
Definition: cuda_runtime.h:35
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 the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a it should return

Definition at line 127 of file vf_selectivecolor.c.

#define READ16 (   dst)
Value:
do { \
if (size < 2) { \
goto end; \
} \
dst = AV_RB16(buf); \
buf += 2; \
size -= 2; \
} while (0)
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_WB24 unsigned int_TMPL AV_RB16
Definition: bytestream.h:87
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
ptrdiff_t size
Definition: opengl_enc.c:100
if(ret)
void * buf
Definition: avisynth_c.h:766

Referenced by parse_psfile().

#define DECLARE_SELECTIVE_COLOR_FUNC (   nbits)

Definition at line 316 of file vf_selectivecolor.c.

#define DEF_SELECTIVE_COLOR_FUNC (   name,
  direct,
  correction_method,
  nbits 
)
Value:
static int selective_color_##name##_##nbits(AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs) \
{ \
return selective_color_##nbits(ctx, arg, jobnr, nb_jobs, direct, correction_method); \
}
correction_method
#define _
const char * arg
Definition: jacosubdec.c:66
AVFormatContext * ctx
Definition: movenc.c:48
An instance of a filter.
Definition: avfilter.h:338
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 the filter must be ready for frames arriving randomly on any input any filter with several inputs will most likely require some kind of queuing mechanism It is perfectly acceptable to have a limited queue and to drop frames when the inputs are too unbalanced request_frame For filters that do not use the this method is called when a frame is wanted on an output For a it should directly call filter_frame on the corresponding output For a if there are queued frames already one of these frames should be pushed If the filter should request a frame on one of its repeatedly until at least one frame has been pushed Return or at least make progress towards producing a it should return
const char * name
Definition: opengl_enc.c:102

Definition at line 396 of file vf_selectivecolor.c.

#define DEF_SELECTIVE_COLOR_FUNCS (   nbits)
Value:
#define DEF_SELECTIVE_COLOR_FUNC(name, direct, correction_method, nbits)
#define DECLARE_SELECTIVE_COLOR_FUNC(nbits)

Definition at line 402 of file vf_selectivecolor.c.

Typedef Documentation

typedef int(* get_range_scale_func) (int r, int g, int b, int min_val, int max_val)

Definition at line 68 of file vf_selectivecolor.c.

typedef int(* selective_color_func_type) (AVFilterContext *ctx, void *td, int jobnr, int nb_jobs)

Definition at line 412 of file vf_selectivecolor.c.

Enumeration Type Documentation

Enumerator
RANGE_REDS 
RANGE_YELLOWS 
RANGE_GREENS 
RANGE_CYANS 
RANGE_BLUES 
RANGE_MAGENTAS 
RANGE_WHITES 
RANGE_NEUTRALS 
RANGE_BLACKS 
NB_RANGES 

Definition at line 44 of file vf_selectivecolor.c.

Enumerator
CORRECTION_METHOD_ABSOLUTE 
CORRECTION_METHOD_RELATIVE 
NB_CORRECTION_METHODS 

Definition at line 58 of file vf_selectivecolor.c.

Function Documentation

AVFILTER_DEFINE_CLASS ( selectivecolor  )
static int get_rgb_scale ( int  r,
int  g,
int  b,
int  min_val,
int  max_val 
)
static

Definition at line 117 of file vf_selectivecolor.c.

Referenced by register_range().

static int get_cmy_scale ( int  r,
int  g,
int  b,
int  min_val,
int  max_val 
)
static

Definition at line 122 of file vf_selectivecolor.c.

Referenced by register_range().

static int register_range ( SelectiveColorContext s,
int  range_id 
)
static

Definition at line 150 of file vf_selectivecolor.c.

Referenced by config_input(), and parse_psfile().

static int parse_psfile ( AVFilterContext ctx,
const char *  fname 
)
static

Definition at line 185 of file vf_selectivecolor.c.

Referenced by config_input().

static int config_input ( AVFilterLink inlink)
static

Definition at line 238 of file vf_selectivecolor.c.

static int query_formats ( AVFilterContext ctx)
static

Definition at line 288 of file vf_selectivecolor.c.

static int comp_adjust ( int  scale,
float  value,
float  adjust,
float  k,
int  correction_method 
)
inlinestatic

Definition at line 306 of file vf_selectivecolor.c.

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 414 of file vf_selectivecolor.c.

Variable Documentation

const char* color_names[NB_RANGES]
static
Initial value:
= {
"red", "yellow", "green", "cyan", "blue", "magenta", "white", "neutral", "black"
}

Definition at line 64 of file vf_selectivecolor.c.

Referenced by config_input(), register_range(), and test_av_parse_color().

const AVOption selectivecolor_options[]
static
Initial value:
= {
{ "correction_method", "select correction method", OFFSET(correction_method), AV_OPT_TYPE_INT, {.i64 = CORRECTION_METHOD_ABSOLUTE}, 0, NB_CORRECTION_METHODS-1, FLAGS, "correction_method" },
{ "absolute", NULL, 0, AV_OPT_TYPE_CONST, {.i64=CORRECTION_METHOD_ABSOLUTE}, INT_MIN, INT_MAX, FLAGS, "correction_method" },
{ "relative", NULL, 0, AV_OPT_TYPE_CONST, {.i64=CORRECTION_METHOD_RELATIVE}, INT_MIN, INT_MAX, FLAGS, "correction_method" },
{ "psfile", "set Photoshop selectivecolor file name", OFFSET(psfile), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
{ NULL }
}
#define NULL
Definition: coverity.c:32
correction_method
#define OFFSET(x)
#define RANGE_OPTION(color_name, range)
#define FLAGS

Definition at line 98 of file vf_selectivecolor.c.

const AVFilterPad selectivecolor_inputs[]
static
Initial value:
= {
{
.name = "default",
.filter_frame = filter_frame,
.config_props = config_input,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
static int config_input(AVFilterLink *inlink)

Definition at line 455 of file vf_selectivecolor.c.

const AVFilterPad selectivecolor_outputs[]
static
Initial value:
= {
{
.name = "default",
},
{ NULL }
}
#define NULL
Definition: coverity.c:32

Definition at line 465 of file vf_selectivecolor.c.

AVFilter ff_vf_selectivecolor
Initial value:
= {
.name = "selectivecolor",
.description = NULL_IF_CONFIG_SMALL("Apply CMYK adjustments to specific color ranges."),
.priv_size = sizeof(SelectiveColorContext),
.priv_class = &selectivecolor_class,
}
#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:125
static const AVFilterPad selectivecolor_inputs[]
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:186
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:116
static const AVFilterPad selectivecolor_outputs[]
static const AVFilterPad outputs[]
Definition: af_acontrast.c:203
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
#define flags(name, subs,...)
Definition: cbs_av1.c:561
static int query_formats(AVFilterContext *ctx)

Definition at line 473 of file vf_selectivecolor.c.