vf_limiter.c File Reference

#include "libavutil/attributes.h"
#include "libavutil/common.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "filters.h"
#include "limiter.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	ThreadData
	Used for passing data between threads. More...
struct	LimiterContext

Macros
#define	OFFSET(x)   offsetof(LimiterContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
#define	LIMITER(n, type)

Functions
	AVFILTER_DEFINE_CLASS (limiter)
static av_cold int	init (AVFilterContext *ctx)
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 int	process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)

Variables
static const AVOption	limiter_options []
static enum AVPixelFormat	pix_fmts []
static const AVFilterPad	inputs []
const AVFilter	ff_vf_limiter

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(LimiterContext, x)

Definition at line 47 of file vf_limiter.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 48 of file vf_limiter.c.

LIMITER

#define LIMITER	(		n,
			type
	)

Value:

static void limiter##n(const uint8_t *ssrc, uint8_t *ddst,      \
                       ptrdiff_t slinesize, ptrdiff_t dlinesize,\
                       int w, int h, int min, int max)          \
{                                                               \
    const type *src = (const type *)ssrc;                       \
    type *dst = (type *)ddst;                                   \
                                                                \
    dlinesize /= sizeof(type);                                  \
    slinesize /= sizeof(type);                                  \
                                                                \
    for (int y = 0; y < h; y++) {                               \
        for (int x = 0; x < w; x++) {                           \
            dst[x] = av_clip(src[x], min, max);                 \
        }                                                       \
                                                                \
        dst += dlinesize;                                       \
        src += slinesize;                                       \
    }                                                           \
}

Definition at line 90 of file vf_limiter.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

limiter

)

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 59 of file vf_limiter.c.

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 114 of file vf_limiter.c.

Referenced by process_command().

filter_slice()

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

static

Definition at line 150 of file vf_limiter.c.

Referenced by filter_frame().

filter_frame()

static int filter_frame ( AVFilterLink *  inlink, AVFrame *  in  )

static

Definition at line 183 of file vf_limiter.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 212 of file vf_limiter.c.

Variable Documentation

limiter_options

const AVOption limiter_options[]

static

Initial value:

= {
    { "min",    "set min value", OFFSET(min),    AV_OPT_TYPE_INT, {.i64=0},     0, 65535, .flags = FLAGS },
    { "max",    "set max value", OFFSET(max),    AV_OPT_TYPE_INT, {.i64=65535}, 0, 65535, .flags = FLAGS },
    { "planes", "set planes",    OFFSET(planes), AV_OPT_TYPE_INT, {.i64=15},    0,    15, .flags = FLAGS },
    { NULL }
}

Definition at line 50 of file vf_limiter.c.

pix_fmts

enum AVPixelFormat pix_fmts[]

static

Initial value:

= {
    AV_PIX_FMT_YUVA444P, AV_PIX_FMT_YUV444P, AV_PIX_FMT_YUV440P,
    AV_PIX_FMT_YUVJ444P, AV_PIX_FMT_YUVJ440P,
    AV_PIX_FMT_YUVA422P, AV_PIX_FMT_YUV422P, AV_PIX_FMT_YUVA420P, AV_PIX_FMT_YUV420P,
    AV_PIX_FMT_YUVJ422P, AV_PIX_FMT_YUVJ420P,
    AV_PIX_FMT_YUVJ411P, AV_PIX_FMT_YUV411P, AV_PIX_FMT_YUV410P,
    AV_PIX_FMT_YUV420P9, AV_PIX_FMT_YUV422P9, AV_PIX_FMT_YUV444P9,
    AV_PIX_FMT_YUV420P10, AV_PIX_FMT_YUV422P10, AV_PIX_FMT_YUV444P10,
    AV_PIX_FMT_YUV420P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV440P12,
    AV_PIX_FMT_YUV420P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV444P14,
    AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
    AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA444P9,
    AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA444P10,
    AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA444P12,
    AV_PIX_FMT_YUVA420P16, AV_PIX_FMT_YUVA422P16, AV_PIX_FMT_YUVA444P16,
    AV_PIX_FMT_GBRP, AV_PIX_FMT_GBRP9, AV_PIX_FMT_GBRP10,
    AV_PIX_FMT_GBRP12, AV_PIX_FMT_GBRP14, AV_PIX_FMT_GBRP16,
    AV_PIX_FMT_GBRAP, AV_PIX_FMT_GBRAP10, AV_PIX_FMT_GBRAP12, AV_PIX_FMT_GBRAP16,
    AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY9, AV_PIX_FMT_GRAY10, AV_PIX_FMT_GRAY12, AV_PIX_FMT_GRAY14, AV_PIX_FMT_GRAY16,
    AV_PIX_FMT_NONE
}

Definition at line 68 of file vf_limiter.c.

inputs

const AVFilterPad inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .filter_frame = filter_frame,
        .config_props = config_input,
    },
}

Definition at line 224 of file vf_limiter.c.

ff_vf_limiter

const AVFilter ff_vf_limiter

Initial value:

= {
    .name          = "limiter",
    .description   = NULL_IF_CONFIG_SMALL("Limit pixels components to the specified range."),
    .priv_size     = sizeof(LimiterContext),
    .priv_class    = &limiter_class,
    .init          = init,
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(ff_video_default_filterpad),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = process_command,
}

Definition at line 233 of file vf_limiter.c.