FFmpeg
Data Structures | Macros | Functions | Variables
vf_midequalizer.c File Reference
#include "libavutil/imgutils.h"
#include "libavutil/pixdesc.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "internal.h"
#include "video.h"
#include "framesync.h"

Go to the source code of this file.

Data Structures

struct  MidEqualizerContext
 

Macros

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

Functions

 AVFILTER_DEFINE_CLASS (midequalizer)
 
static int process_frame (FFFrameSync *fs)
 
static void compute_histogram8 (const uint8_t *src, ptrdiff_t linesize, int w, int h, float *histogram, size_t hsize)
 
static void compute_histogram16 (const uint16_t *src, ptrdiff_t linesize, int w, int h, float *histogram, size_t hsize)
 
static void compute_contrast_change (float *histogram1, float *histogram2, unsigned *cchange, size_t hsize)
 
static void midequalizer8 (const uint8_t *in0, const uint8_t *in1, uint8_t *dst, ptrdiff_t linesize1, ptrdiff_t linesize2, ptrdiff_t dlinesize, int w0, int h0, int w1, int h1, float *histogram1, float *histogram2, unsigned *cchange, size_t hsize)
 
static void midequalizer16 (const uint8_t *in0, const uint8_t *in1, uint8_t *dst, ptrdiff_t linesize1, ptrdiff_t linesize2, ptrdiff_t dlinesize, int w0, int h0, int w1, int h1, float *histogram1, float *histogram2, unsigned *cchange, size_t hsize)
 
static int config_input0 (AVFilterLink *inlink)
 
static int config_input1 (AVFilterLink *inlink)
 
static int config_output (AVFilterLink *outlink)
 
static int activate (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 

Variables

static const AVOption midequalizer_options []
 
static enum AVPixelFormat pix_fmts []
 
static const AVFilterPad midequalizer_inputs []
 
static const AVFilterPad midequalizer_outputs []
 
const AVFilter ff_vf_midequalizer
 

Macro Definition Documentation

◆ OFFSET

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

Definition at line 49 of file vf_midequalizer.c.

◆ FLAGS

Definition at line 50 of file vf_midequalizer.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( midequalizer  )

◆ process_frame()

static int process_frame ( FFFrameSync fs)
static

Definition at line 83 of file vf_midequalizer.c.

Referenced by config_output().

◆ compute_histogram8()

static void compute_histogram8 ( const uint8_t *  src,
ptrdiff_t  linesize,
int  w,
int  h,
float histogram,
size_t  hsize 
)
static

Definition at line 129 of file vf_midequalizer.c.

Referenced by midequalizer8().

◆ compute_histogram16()

static void compute_histogram16 ( const uint16_t *  src,
ptrdiff_t  linesize,
int  w,
int  h,
float histogram,
size_t  hsize 
)
static

Definition at line 150 of file vf_midequalizer.c.

Referenced by midequalizer16().

◆ compute_contrast_change()

static void compute_contrast_change ( float histogram1,
float histogram2,
unsigned *  cchange,
size_t  hsize 
)
static

Definition at line 171 of file vf_midequalizer.c.

Referenced by midequalizer16(), and midequalizer8().

◆ midequalizer8()

static void midequalizer8 ( const uint8_t *  in0,
const uint8_t *  in1,
uint8_t *  dst,
ptrdiff_t  linesize1,
ptrdiff_t  linesize2,
ptrdiff_t  dlinesize,
int  w0,
int  h0,
int  w1,
int  h1,
float histogram1,
float histogram2,
unsigned *  cchange,
size_t  hsize 
)
static

Definition at line 185 of file vf_midequalizer.c.

Referenced by config_input0().

◆ midequalizer16()

static void midequalizer16 ( const uint8_t *  in0,
const uint8_t *  in1,
uint8_t *  dst,
ptrdiff_t  linesize1,
ptrdiff_t  linesize2,
ptrdiff_t  dlinesize,
int  w0,
int  h0,
int  w1,
int  h1,
float histogram1,
float histogram2,
unsigned *  cchange,
size_t  hsize 
)
static

Definition at line 211 of file vf_midequalizer.c.

Referenced by config_input0().

◆ config_input0()

static int config_input0 ( AVFilterLink inlink)
static

Definition at line 239 of file vf_midequalizer.c.

◆ config_input1()

static int config_input1 ( AVFilterLink inlink)
static

Definition at line 273 of file vf_midequalizer.c.

◆ config_output()

static int config_output ( AVFilterLink outlink)
static

Definition at line 293 of file vf_midequalizer.c.

◆ activate()

static int activate ( AVFilterContext ctx)
static

Definition at line 328 of file vf_midequalizer.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 334 of file vf_midequalizer.c.

Variable Documentation

◆ midequalizer_options

const AVOption midequalizer_options[]
static
Initial value:
= {
{ "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
{ NULL }
}

Definition at line 52 of file vf_midequalizer.c.

◆ pix_fmts

enum AVPixelFormat pix_fmts[]
static

◆ midequalizer_inputs

const AVFilterPad midequalizer_inputs[]
static
Initial value:
= {
{
.name = "in0",
.config_props = config_input0,
},
{
.name = "in1",
.config_props = config_input1,
},
}

Definition at line 344 of file vf_midequalizer.c.

◆ midequalizer_outputs

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

Definition at line 357 of file vf_midequalizer.c.

◆ ff_vf_midequalizer

const AVFilter ff_vf_midequalizer
Initial value:
= {
.name = "midequalizer",
.description = NULL_IF_CONFIG_SMALL("Apply Midway Equalization."),
.priv_size = sizeof(MidEqualizerContext),
.priv_class = &midequalizer_class,
}

Definition at line 365 of file vf_midequalizer.c.

AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:522
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:501
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:162
config_input1
static int config_input1(AVFilterLink *inlink)
Definition: vf_midequalizer.c:273
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:514
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:521
OFFSET
#define OFFSET(x)
Definition: vf_midequalizer.c:49
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:516
midequalizer_inputs
static const AVFilterPad midequalizer_inputs[]
Definition: vf_midequalizer.c:344
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:478
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:106
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:517
activate
static int activate(AVFilterContext *ctx)
Definition: vf_midequalizer.c:328
MidEqualizerContext
Definition: vf_midequalizer.c:29
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:458
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:513
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:496
AV_PIX_FMT_GBRAP
@ AV_PIX_FMT_GBRAP
planar GBRA 4:4:4:4 32bpp
Definition: pixfmt.h:212
AV_PIX_FMT_GBRP10
#define AV_PIX_FMT_GBRP10
Definition: pixfmt.h:494
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:523
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:476
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:462
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:481
AV_PIX_FMT_YUVJ411P
@ AV_PIX_FMT_YUVJ411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples) full scale (JPEG), deprecated in favor ...
Definition: pixfmt.h:283
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:490
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_midequalizer.c:293
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_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:498
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:499
AV_PIX_FMT_YUVA420P
@ AV_PIX_FMT_YUVA420P
planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
Definition: pixfmt.h:108
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:491
AV_PIX_FMT_YUVA444P12
#define AV_PIX_FMT_YUVA444P12
Definition: pixfmt.h:520
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:475
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:489
FLAGS
#define FLAGS
Definition: vf_midequalizer.c:50
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:461
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_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:182
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:459
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:497
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
midequalizer_outputs
static const AVFilterPad midequalizer_outputs[]
Definition: vf_midequalizer.c:357
config_input0
static int config_input0(AVFilterLink *inlink)
Definition: vf_midequalizer.c:239
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:479
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:81
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:493
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:106
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:483
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:485
AV_PIX_FMT_YUVA444P
@ AV_PIX_FMT_YUVA444P
planar YUV 4:4:4 32bpp, (1 Cr & Cb sample per 1x1 Y & A samples)
Definition: pixfmt.h:174
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:518
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:495
AV_PIX_FMT_YUVJ440P
@ AV_PIX_FMT_YUVJ440P
planar YUV 4:4:0 full scale (JPEG), deprecated in favor of AV_PIX_FMT_YUV440P and setting color_range
Definition: pixfmt.h:107
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:477
planes
static const struct @383 planes[]
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:515
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:482
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:487
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_midequalizer.c:59
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:72
AV_PIX_FMT_YUVA422P12
#define AV_PIX_FMT_YUVA422P12
Definition: pixfmt.h:519
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:235
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
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_midequalizer.c:334
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:165
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
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:183
AV_PIX_FMT_YUV411P
@ AV_PIX_FMT_YUV411P
planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
Definition: pixfmt.h:80
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:155
AV_PIX_FMT_YUV410P
@ AV_PIX_FMT_YUV410P
planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
Definition: pixfmt.h:79
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:488
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:460
AV_PIX_FMT_YUVA422P
@ AV_PIX_FMT_YUVA422P
planar YUV 4:2:2 24bpp, (1 Cr & Cb sample per 2x1 Y & A samples)
Definition: pixfmt.h:173
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:486