vf_varblur.c File Reference

#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "framesync.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

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

Macros
#define	OFFSET(x)   offsetof(VarBlurContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
#define	COMPUTE_SAT(type, stype, depth)
#define	BLUR_PLANE(type, stype, bits)

Functions
	FRAMESYNC_DEFINE_CLASS (varblur, VarBlurContext, fs)
static float	lerpf (float v0, float v1, float f)
static int	blur_planes (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	blur_frame (AVFilterContext *ctx, AVFrame *in, AVFrame *radius)
static int	activate (AVFilterContext *ctx)
static int	varblur_frame (FFFrameSync *fs)
static int	config_output (AVFilterLink *outlink)
static av_cold void	uninit (AVFilterContext *ctx)

Variables
static const AVOption	varblur_options []
static enum AVPixelFormat	pix_fmts []
static const AVFilterPad	varblur_inputs []
static const AVFilterPad	varblur_outputs []
const AVFilter	ff_vf_varblur

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(VarBlurContext, x)

Definition at line 62 of file vf_varblur.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

Definition at line 63 of file vf_varblur.c.

COMPUTE_SAT

#define COMPUTE_SAT	(		type,
			stype,
			depth
	)

Value:

static void compute_sat##depth(const uint8_t *ssrc,  \
                               int linesize,         \
                               int w, int h,         \
                               uint8_t *dstp,        \
                               int dst_linesize)     \
{                                                    \
    const type *src = (const type *)ssrc;            \
    stype *dst = (stype *)dstp;                      \
                                                     \
    linesize /= (depth / 8);                         \
    dst_linesize /= sizeof(stype);                   \
    dst += dst_linesize;                             \
                                                     \
    for (int y = 0; y < h; y++) {                    \
        stype sum = 0;                               \
                                                     \
        for (int x = 1; x < w; x++) {                \
            sum += src[x - 1];                       \
            dst[x] = sum + dst[x - dst_linesize];    \
        }                                            \
                                                     \
        src += linesize;                             \
        dst += dst_linesize;                         \
    }                                                \
}

Definition at line 97 of file vf_varblur.c.

BLUR_PLANE

#define BLUR_PLANE	(		type,
			stype,
			bits
	)

Definition at line 137 of file vf_varblur.c.

Function Documentation

FRAMESYNC_DEFINE_CLASS()

FRAMESYNC_DEFINE_CLASS	(	varblur	,
		VarBlurContext	,
		fs
	)

lerpf()

static float lerpf ( float  v0, float  v1, float  f  )

static

Definition at line 132 of file vf_varblur.c.

blur_planes()

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

static

Definition at line 206 of file vf_varblur.c.

Referenced by blur_frame().

blur_frame()

static int blur_frame ( AVFilterContext *  ctx, AVFrame *  in, AVFrame *  radius  )

static

Definition at line 250 of file vf_varblur.c.

Referenced by varblur_frame().

activate()

static int activate ( AVFilterContext *  ctx )

static

Definition at line 293 of file vf_varblur.c.

varblur_frame()

static int varblur_frame ( FFFrameSync *  fs )

static

Definition at line 299 of file vf_varblur.c.

Referenced by config_output().

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 317 of file vf_varblur.c.

uninit()

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 369 of file vf_varblur.c.

Variable Documentation

varblur_options

const AVOption varblur_options[]

static

Initial value:

= {
    { "min_r",  "set min blur radius",  OFFSET(min_radius), AV_OPT_TYPE_INT,   {.i64=0},     0, 254, FLAGS },
    { "max_r",  "set max blur radius",  OFFSET(max_radius), AV_OPT_TYPE_INT,   {.i64=8},     1, 255, FLAGS },
    { "planes", "set planes to filter", OFFSET(planes),     AV_OPT_TYPE_INT,   {.i64=0xF},   0, 0xF, FLAGS },
    { NULL }
}

Definition at line 65 of file vf_varblur.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_GBRPF32, AV_PIX_FMT_GBRAPF32,
    AV_PIX_FMT_NONE
}

Definition at line 74 of file vf_varblur.c.

varblur_inputs

const AVFilterPad varblur_inputs[]

static

Initial value:

= {
    {
        .name = "default",
        .type = AVMEDIA_TYPE_VIDEO,
    },
    {
        .name = "radius",
        .type = AVMEDIA_TYPE_VIDEO,
    },
}

Definition at line 378 of file vf_varblur.c.

varblur_outputs

const AVFilterPad varblur_outputs[]

static

Initial value:

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

Definition at line 389 of file vf_varblur.c.

ff_vf_varblur

const AVFilter ff_vf_varblur

Initial value:

= {
    .name          = "varblur",
    .description   = NULL_IF_CONFIG_SMALL("Apply Variable Blur filter."),
    .priv_size     = sizeof(VarBlurContext),
    .priv_class    = &varblur_class,
    .activate      = activate,
    .preinit       = varblur_framesync_preinit,
    .uninit        = uninit,
    FILTER_INPUTS(varblur_inputs),
    FILTER_OUTPUTS(varblur_outputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
                     AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
}

Definition at line 397 of file vf_varblur.c.