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

Go to the source code of this file.

Data Structures

struct  HysteresisContext
 

Macros

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

Functions

static int process_frame (FFFrameSync *fs)
 
static int passed (HysteresisContext *s, int x, int y, int w)
 
static void push (HysteresisContext *s, int x, int y, int w)
 
static void pop (HysteresisContext *s, int *x, int *y)
 
static int is_empty (HysteresisContext *s)
 
static void hysteresis8 (HysteresisContext *s, const uint8_t *bsrc, const uint8_t *asrc, uint8_t *dst, ptrdiff_t blinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h)
 
static void hysteresis16 (HysteresisContext *s, const uint8_t *bbsrc, const uint8_t *aasrc, uint8_t *ddst, ptrdiff_t blinesize, ptrdiff_t alinesize, ptrdiff_t dlinesize, int w, int h)
 
static int config_input (AVFilterLink *inlink)
 
static int config_output (AVFilterLink *outlink)
 
static int activate (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 
 FRAMESYNC_DEFINE_CLASS (hysteresis, HysteresisContext, fs)
 

Variables

static const AVOption hysteresis_options []
 
static enum AVPixelFormat pix_fmts []
 
static const AVFilterPad hysteresis_inputs []
 
static const AVFilterPad hysteresis_outputs []
 
const AVFilter ff_vf_hysteresis
 

Macro Definition Documentation

◆ OFFSET

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

Definition at line 31 of file vf_hysteresis.c.

◆ FLAGS

Definition at line 32 of file vf_hysteresis.c.

Function Documentation

◆ process_frame()

static int process_frame ( FFFrameSync fs)
static

Definition at line 82 of file vf_hysteresis.c.

Referenced by config_output().

◆ passed()

static int passed ( HysteresisContext s,
int  x,
int  y,
int  w 
)
static

Definition at line 135 of file vf_hysteresis.c.

Referenced by hysteresis16(), and hysteresis8().

◆ push()

static void push ( HysteresisContext s,
int  x,
int  y,
int  w 
)
static

Definition at line 140 of file vf_hysteresis.c.

Referenced by hysteresis16(), and hysteresis8().

◆ pop()

static void pop ( HysteresisContext s,
int x,
int y 
)
static

Definition at line 146 of file vf_hysteresis.c.

Referenced by hysteresis16(), and hysteresis8().

◆ is_empty()

static int is_empty ( HysteresisContext s)
static

Definition at line 154 of file vf_hysteresis.c.

Referenced by hysteresis16(), and hysteresis8().

◆ hysteresis8()

static void hysteresis8 ( HysteresisContext s,
const uint8_t *  bsrc,
const uint8_t *  asrc,
uint8_t *  dst,
ptrdiff_t  blinesize,
ptrdiff_t  alinesize,
ptrdiff_t  dlinesize,
int  w,
int  h 
)
static

Definition at line 159 of file vf_hysteresis.c.

Referenced by config_input().

◆ hysteresis16()

static void hysteresis16 ( HysteresisContext s,
const uint8_t *  bbsrc,
const uint8_t *  aasrc,
uint8_t *  ddst,
ptrdiff_t  blinesize,
ptrdiff_t  alinesize,
ptrdiff_t  dlinesize,
int  w,
int  h 
)
static

Definition at line 201 of file vf_hysteresis.c.

Referenced by config_input().

◆ config_input()

static int config_input ( AVFilterLink inlink)
static

Definition at line 250 of file vf_hysteresis.c.

◆ config_output()

static int config_output ( AVFilterLink outlink)
static

Definition at line 284 of file vf_hysteresis.c.

◆ activate()

static int activate ( AVFilterContext ctx)
static

Definition at line 329 of file vf_hysteresis.c.

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 335 of file vf_hysteresis.c.

◆ FRAMESYNC_DEFINE_CLASS()

FRAMESYNC_DEFINE_CLASS ( hysteresis  ,
HysteresisContext  ,
fs   
)

Variable Documentation

◆ hysteresis_options

const AVOption hysteresis_options[]
static
Initial value:
= {
{ "planes", "set planes", OFFSET(planes), AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF, FLAGS },
{ "threshold", "set threshold", OFFSET(threshold), AV_OPT_TYPE_INT, {.i64=0}, 0, UINT16_MAX, FLAGS },
{ NULL }
}

Definition at line 55 of file vf_hysteresis.c.

◆ pix_fmts

enum AVPixelFormat pix_fmts[]
static

◆ hysteresis_inputs

const AVFilterPad hysteresis_inputs[]
static
Initial value:
= {
{
.name = "base",
.config_props = config_input,
},
{
.name = "alt",
},
}

Definition at line 346 of file vf_hysteresis.c.

◆ hysteresis_outputs

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

Definition at line 358 of file vf_hysteresis.c.

◆ ff_vf_hysteresis

const AVFilter ff_vf_hysteresis
Initial value:
= {
.name = "hysteresis",
.description = NULL_IF_CONFIG_SMALL("Grow first stream into second stream by connecting components."),
.preinit = hysteresis_framesync_preinit,
.priv_size = sizeof(HysteresisContext),
.priv_class = &hysteresis_class,
}

Definition at line 366 of file vf_hysteresis.c.

AV_PIX_FMT_YUVA422P16
#define AV_PIX_FMT_YUVA422P16
Definition: pixfmt.h:447
AV_PIX_FMT_GBRAP16
#define AV_PIX_FMT_GBRAP16
Definition: pixfmt.h:426
config_output
static int config_output(AVFilterLink *outlink)
Definition: vf_hysteresis.c:284
FILTER_PIXFMTS_ARRAY
#define FILTER_PIXFMTS_ARRAY(array)
Definition: internal.h:171
AV_PIX_FMT_YUVA422P9
#define AV_PIX_FMT_YUVA422P9
Definition: pixfmt.h:439
AV_PIX_FMT_YUVA420P16
#define AV_PIX_FMT_YUVA420P16
Definition: pixfmt.h:446
AV_PIX_FMT_YUVA420P10
#define AV_PIX_FMT_YUVA420P10
Definition: pixfmt.h:441
AV_PIX_FMT_YUV420P10
#define AV_PIX_FMT_YUV420P10
Definition: pixfmt.h:404
AV_PIX_FMT_YUV440P
@ AV_PIX_FMT_YUV440P
planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
Definition: pixfmt.h:99
AV_PIX_FMT_YUVA422P10
#define AV_PIX_FMT_YUVA422P10
Definition: pixfmt.h:442
AV_PIX_FMT_GRAY9
#define AV_PIX_FMT_GRAY9
Definition: pixfmt.h:384
pix_fmts
static enum AVPixelFormat pix_fmts[]
Definition: vf_hysteresis.c:61
AV_PIX_FMT_YUVA420P9
#define AV_PIX_FMT_YUVA420P9
Definition: pixfmt.h:438
HysteresisContext
Definition: vf_hysteresis.c:34
AV_PIX_FMT_GBRP14
#define AV_PIX_FMT_GBRP14
Definition: pixfmt.h:422
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:420
AV_PIX_FMT_YUVA444P16
#define AV_PIX_FMT_YUVA444P16
Definition: pixfmt.h:448
AV_PIX_FMT_YUV422P9
#define AV_PIX_FMT_YUV422P9
Definition: pixfmt.h:402
hysteresis_inputs
static const AVFilterPad hysteresis_inputs[]
Definition: vf_hysteresis.c:346
AV_PIX_FMT_GRAY16
#define AV_PIX_FMT_GRAY16
Definition: pixfmt.h:388
AV_PIX_FMT_YUV444P10
#define AV_PIX_FMT_YUV444P10
Definition: pixfmt.h:407
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:248
AV_PIX_FMT_YUV422P16
#define AV_PIX_FMT_YUV422P16
Definition: pixfmt.h:416
activate
static int activate(AVFilterContext *ctx)
Definition: vf_hysteresis.c:329
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:79
AV_PIX_FMT_GBRAP10
#define AV_PIX_FMT_GBRAP10
Definition: pixfmt.h:424
AV_PIX_FMT_GBRAP12
#define AV_PIX_FMT_GBRAP12
Definition: pixfmt.h:425
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:101
AV_PIX_FMT_YUV444P16
#define AV_PIX_FMT_YUV444P16
Definition: pixfmt.h:417
AV_PIX_FMT_YUV420P9
#define AV_PIX_FMT_YUV420P9
Definition: pixfmt.h:401
AV_PIX_FMT_YUV420P16
#define AV_PIX_FMT_YUV420P16
Definition: pixfmt.h:415
AV_PIX_FMT_GRAY14
#define AV_PIX_FMT_GRAY14
Definition: pixfmt.h:387
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:66
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:191
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:80
planes
static const struct @321 planes[]
AV_PIX_FMT_GRAY10
#define AV_PIX_FMT_GRAY10
Definition: pixfmt.h:385
AV_PIX_FMT_GBRP16
#define AV_PIX_FMT_GBRP16
Definition: pixfmt.h:423
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:78
AV_PIX_FMT_YUV422P10
#define AV_PIX_FMT_YUV422P10
Definition: pixfmt.h:405
AV_PIX_FMT_GRAY8
@ AV_PIX_FMT_GRAY8
Y , 8bpp.
Definition: pixfmt.h:74
AV_PIX_FMT_GBRP9
#define AV_PIX_FMT_GBRP9
Definition: pixfmt.h:419
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
FLAGS
#define FLAGS
Definition: vf_hysteresis.c:32
AV_PIX_FMT_YUV422P12
#define AV_PIX_FMT_YUV422P12
Definition: pixfmt.h:409
AV_PIX_FMT_YUV444P12
#define AV_PIX_FMT_YUV444P12
Definition: pixfmt.h:411
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:167
AV_PIX_FMT_YUVA444P10
#define AV_PIX_FMT_YUVA444P10
Definition: pixfmt.h:443
AV_PIX_FMT_GBRP12
#define AV_PIX_FMT_GBRP12
Definition: pixfmt.h:421
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:100
AV_PIX_FMT_YUV444P9
#define AV_PIX_FMT_YUV444P9
Definition: pixfmt.h:403
AV_PIX_FMT_YUVA444P9
#define AV_PIX_FMT_YUVA444P9
Definition: pixfmt.h:440
AV_PIX_FMT_YUV420P12
#define AV_PIX_FMT_YUV420P12
Definition: pixfmt.h:408
AV_PIX_FMT_YUV422P14
#define AV_PIX_FMT_YUV422P14
Definition: pixfmt.h:413
AV_PIX_FMT_NONE
@ AV_PIX_FMT_NONE
Definition: pixfmt.h:65
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:224
OFFSET
#define OFFSET(x)
Definition: vf_hysteresis.c:31
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:71
hysteresis_outputs
static const AVFilterPad hysteresis_outputs[]
Definition: vf_hysteresis.c:358
AV_PIX_FMT_GBRP
@ AV_PIX_FMT_GBRP
planar GBR 4:4:4 24bpp
Definition: pixfmt.h:158
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:70
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_hysteresis.c:335
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:192
config_input
static int config_input(AVFilterLink *inlink)
Definition: vf_hysteresis.c:250
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:73
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:138
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:72
AV_PIX_FMT_YUV440P12
#define AV_PIX_FMT_YUV440P12
Definition: pixfmt.h:410
AV_PIX_FMT_YUV444P14
#define AV_PIX_FMT_YUV444P14
Definition: pixfmt.h:414
AV_PIX_FMT_GRAY12
#define AV_PIX_FMT_GRAY12
Definition: pixfmt.h:386
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:166
AV_PIX_FMT_YUV420P14
#define AV_PIX_FMT_YUV420P14
Definition: pixfmt.h:412