vf_maskedclamp.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"
#include "maskedclamp.h"

Go to the source code of this file.

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

Macros
#define	OFFSET(x)   offsetof(MaskedClampContext, x)
#define	FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
#define	MASKEDCLAMP(type, name)

Functions
	AVFILTER_DEFINE_CLASS (maskedclamp)
static int	query_formats (AVFilterContext *ctx)
static int	maskedclamp_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	process_frame (FFFrameSync *fs)
static int	config_input (AVFilterLink *inlink)
static int	config_output (AVFilterLink *outlink)
static int	activate (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	maskedclamp_options []
static const AVFilterPad	maskedclamp_inputs []
static const AVFilterPad	maskedclamp_outputs []
AVFilter	ff_vf_maskedclamp

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(MaskedClampContext, x)

Definition at line 31 of file vf_maskedclamp.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM

Definition at line 32 of file vf_maskedclamp.c.

MASKEDCLAMP

#define MASKEDCLAMP	(		type,
			name
	)

Value:

static void maskedclamp##name(const uint8_t *bbsrc, uint8_t *ddst,                \
                              const uint8_t *ddarksrc, const uint8_t *bbrightsrc, \
                              int w, int undershoot, int overshoot)               \
{                                                                                 \
    const type *bsrc = (const type *)bbsrc;                                       \
    const type *darksrc = (const type *)ddarksrc;                                 \
    const type *brightsrc = (const type *)bbrightsrc;                             \
    type *dst = (type *)ddst;                                                     \
                                                                                  \
    for (int x = 0; x < w; x++) {                                                 \
        dst[x] = FFMAX(bsrc[x], darksrc[x] - undershoot);                         \
        dst[x] = FFMIN(dst[x], brightsrc[x] + overshoot);                         \
    }                                                                             \
}

Definition at line 170 of file vf_maskedclamp.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

maskedclamp

)

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 63 of file vf_maskedclamp.c.

maskedclamp_slice()

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

static

Definition at line 90 of file vf_maskedclamp.c.

Referenced by process_frame().

process_frame()

static int process_frame ( FFFrameSync *  fs )

static

Definition at line 132 of file vf_maskedclamp.c.

Referenced by config_output().

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 189 of file vf_maskedclamp.c.

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 223 of file vf_maskedclamp.c.

activate()

static int activate ( AVFilterContext *  ctx )

static

Definition at line 280 of file vf_maskedclamp.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 286 of file vf_maskedclamp.c.

Variable Documentation

maskedclamp_options

const AVOption maskedclamp_options[]

static

Initial value:

= {
    { "undershoot", "set undershoot", OFFSET(undershoot), AV_OPT_TYPE_INT, {.i64=0},   0, UINT16_MAX, FLAGS },
    { "overshoot",  "set overshoot",  OFFSET(overshoot),  AV_OPT_TYPE_INT, {.i64=0},   0, UINT16_MAX, FLAGS },
    { "planes",     "set planes",     OFFSET(planes),     AV_OPT_TYPE_INT, {.i64=0xF}, 0, 0xF,        FLAGS },
    { NULL }
}

Definition at line 54 of file vf_maskedclamp.c.

maskedclamp_inputs

const AVFilterPad maskedclamp_inputs[]

static

Initial value:

= {
    {
        .name         = "base",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_input,
    },
    {
        .name         = "dark",
        .type         = AVMEDIA_TYPE_VIDEO,
    },
    {
        .name         = "bright",
        .type         = AVMEDIA_TYPE_VIDEO,
    },
    { NULL }
}

Definition at line 293 of file vf_maskedclamp.c.

maskedclamp_outputs

const AVFilterPad maskedclamp_outputs[]

static

Initial value:

= {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = config_output,
    },
    { NULL }
}

Definition at line 310 of file vf_maskedclamp.c.

ff_vf_maskedclamp

AVFilter ff_vf_maskedclamp

Initial value:

= {
    .name          = "maskedclamp",
    .description   = NULL_IF_CONFIG_SMALL("Clamp first stream with second stream and third stream."),
    .priv_size     = sizeof(MaskedClampContext),
    .uninit        = uninit,
    .activate      = activate,
    .query_formats = query_formats,
    .inputs        = maskedclamp_inputs,
    .outputs       = maskedclamp_outputs,
    .priv_class    = &maskedclamp_class,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL | AVFILTER_FLAG_SLICE_THREADS,
}

Definition at line 319 of file vf_maskedclamp.c.