vf_pixelize.c File Reference

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

Go to the source code of this file.

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

Macros
#define	PIXELIZE_AVG(name, type, stype)
#define	PIXELIZE_MIN(name, type, stype)
#define	PIXELIZE_MAX(name, type, stype)
#define	OFFSET(x)   offsetof(PixelizeContext, x)
#define	FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_RUNTIME_PARAM)

Enumerations
enum	PixelizeModes { PIXELIZE_AVG, PIXELIZE_MIN, PIXELIZE_MAX, PIXELIZE_MODES }

Functions
static int	pixelize_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	config_output (AVFilterLink *outlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
	AVFILTER_DEFINE_CLASS (pixelize)

Variables
static enum AVPixelFormat	pix_fmts []
static const AVOption	pixelize_options []
static const AVFilterPad	pixelize_inputs []
static const AVFilterPad	pixelize_outputs []
const AVFilter	ff_vf_pixelize

Macro Definition Documentation

PIXELIZE_AVG

#define PIXELIZE_AVG	(		name,
			type,
			stype
	)

Value:

static int pixelize_avg##name(const uint8_t *ssrc, uint8_t *ddst, \
                              ptrdiff_t src_linesize, ptrdiff_t dst_linesize, \
                              int w, int h)       \
{                                                 \
    const type *src = (const type *)ssrc;         \
    type *dst = (type *)ddst;                     \
    stype sum = 0;                                \
    type fill;                                    \
    for (int y = 0; y < h; y++) {                 \
        for (int x = 0; x < w; x++)               \
            sum += src[x];                        \
                                                  \
        src += src_linesize / sizeof(type);       \
    }                                             \
                                                  \
    fill = sum / (w * h);                         \
                                                  \
    for (int y = 0; y < h; y++) {                 \
        for (int x = 0; x < w; x++)               \
            dst[x] = fill;                        \
                                                  \
        dst += dst_linesize / sizeof(type);       \
    }                                             \
                                                  \
    return 0;                                     \
}

Definition at line 93 of file vf_pixelize.c.

PIXELIZE_MIN

#define PIXELIZE_MIN	(		name,
			type,
			stype
	)

Value:

static int pixelize_min##name(const uint8_t *ssrc, uint8_t *ddst, \
                              ptrdiff_t src_linesize, ptrdiff_t dst_linesize, \
                              int w, int h)       \
{                                                 \
    const type *src = (const type *)ssrc;         \
    type *dst = (type *)ddst;                     \
    type fill = src[0];                           \
                                                  \
    for (int y = 0; y < h; y++) {                 \
        for (int x = 0; x < w; x++)               \
            fill = FFMIN(src[x], fill);           \
                                                  \
        src += src_linesize / sizeof(type);       \
    }                                             \
                                                  \
    for (int y = 0; y < h; y++) {                 \
        for (int x = 0; x < w; x++)               \
            dst[x] = fill;                        \
                                                  \
        dst += dst_linesize / sizeof(type);       \
    }                                             \
                                                  \
    return 0;                                     \
}

Definition at line 121 of file vf_pixelize.c.

PIXELIZE_MAX

#define PIXELIZE_MAX	(		name,
			type,
			stype
	)

Value:

static int pixelize_max##name(const uint8_t *ssrc, uint8_t *ddst, \
                              ptrdiff_t src_linesize, ptrdiff_t dst_linesize, \
                              int w, int h)       \
{                                                 \
    const type *src = (const type *)ssrc;         \
    type *dst = (type *)ddst;                     \
    type fill = src[0];                           \
                                                  \
    for (int y = 0; y < h; y++) {                 \
        for (int x = 0; x < w; x++)               \
            fill = FFMAX(src[x], fill);           \
                                                  \
        src += src_linesize / sizeof(type);       \
    }                                             \
                                                  \
    for (int y = 0; y < h; y++) {                 \
        for (int x = 0; x < w; x++)               \
            dst[x] = fill;                        \
                                                  \
        dst += dst_linesize / sizeof(type);       \
    }                                             \
                                                  \
    return 0;                                     \
}

Definition at line 147 of file vf_pixelize.c.

OFFSET

#define OFFSET

(

x

)

offsetof(PixelizeContext, x)

Definition at line 305 of file vf_pixelize.c.

FLAGS

#define FLAGS   (AV_OPT_FLAG_FILTERING_PARAM | AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_RUNTIME_PARAM)

Definition at line 306 of file vf_pixelize.c.

Enumeration Type Documentation

PixelizeModes

enum PixelizeModes

Enumerator
PIXELIZE_AVG
PIXELIZE_MIN
PIXELIZE_MAX
PIXELIZE_MODES

Definition at line 30 of file vf_pixelize.c.

Function Documentation

pixelize_slice()

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

static

Definition at line 180 of file vf_pixelize.c.

Referenced by filter_frame().

config_output()

static int config_output ( AVFilterLink *  outlink )

static

Definition at line 227 of file vf_pixelize.c.

filter_frame()

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

static

Definition at line 260 of file vf_pixelize.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

pixelize

)

Variable Documentation

pix_fmts

enum AVPixelFormat pix_fmts[]

static

Initial value:

= {
    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_YUV410P, AV_PIX_FMT_YUV411P,
    AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV422P,
    AV_PIX_FMT_YUV440P, AV_PIX_FMT_YUV444P,
    AV_PIX_FMT_YUVJ420P, AV_PIX_FMT_YUVJ422P,
    AV_PIX_FMT_YUVJ440P, AV_PIX_FMT_YUVJ444P,
    AV_PIX_FMT_YUVJ411P,
    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_YUV440P10,
    AV_PIX_FMT_YUV444P12, AV_PIX_FMT_YUV422P12, AV_PIX_FMT_YUV420P12,
    AV_PIX_FMT_YUV440P12,
    AV_PIX_FMT_YUV444P14, AV_PIX_FMT_YUV422P14, AV_PIX_FMT_YUV420P14,
    AV_PIX_FMT_YUV420P16, AV_PIX_FMT_YUV422P16, AV_PIX_FMT_YUV444P16,
    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_YUVA420P,  AV_PIX_FMT_YUVA422P,   AV_PIX_FMT_YUVA444P,
    AV_PIX_FMT_YUVA444P9, AV_PIX_FMT_YUVA444P10, AV_PIX_FMT_YUVA444P12, AV_PIX_FMT_YUVA444P16,
    AV_PIX_FMT_YUVA422P9, AV_PIX_FMT_YUVA422P10, AV_PIX_FMT_YUVA422P12, AV_PIX_FMT_YUVA422P16,
    AV_PIX_FMT_YUVA420P9, AV_PIX_FMT_YUVA420P10, AV_PIX_FMT_YUVA420P16,
    AV_PIX_FMT_GBRAP,     AV_PIX_FMT_GBRAP10,    AV_PIX_FMT_GBRAP12,    AV_PIX_FMT_GBRAP16,
    AV_PIX_FMT_NONE
}

Definition at line 59 of file vf_pixelize.c.

pixelize_options

const AVOption pixelize_options[]

static

Initial value:

= {
    { "width",  "set block width",  OFFSET(block_w[0]), AV_OPT_TYPE_INT, {.i64=16}, 1, 1024, FLAGS },
    { "w",      "set block width",  OFFSET(block_w[0]), AV_OPT_TYPE_INT, {.i64=16}, 1, 1024, FLAGS },
    { "height", "set block height", OFFSET(block_h[0]), AV_OPT_TYPE_INT, {.i64=16}, 1, 1024, FLAGS },
    { "h",      "set block height", OFFSET(block_h[0]), AV_OPT_TYPE_INT, {.i64=16}, 1, 1024, FLAGS },
    { "mode",  "set the pixelize mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, PIXELIZE_MODES-1, FLAGS, "mode" },
    { "m",     "set the pixelize mode", OFFSET(mode), AV_OPT_TYPE_INT, {.i64=0}, 0, PIXELIZE_MODES-1, FLAGS, "mode" },
    {  "avg",    "average",  0,  AV_OPT_TYPE_CONST, {.i64=PIXELIZE_AVG}, 0,  0, FLAGS, "mode" },
    {  "min",    "minimum",  0,  AV_OPT_TYPE_CONST, {.i64=PIXELIZE_MIN}, 0,  0, FLAGS, "mode" },
    {  "max",    "maximum",  0,  AV_OPT_TYPE_CONST, {.i64=PIXELIZE_MAX}, 0,  0, FLAGS, "mode" },
    { "planes", "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=15}, 0, 15, FLAGS },
    { "p",      "set what planes to filter", OFFSET(planes), AV_OPT_TYPE_FLAGS, {.i64=15}, 0, 15, FLAGS },
    { NULL },
}

Definition at line 308 of file vf_pixelize.c.

pixelize_inputs

const AVFilterPad pixelize_inputs[]

static

Initial value:

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

Definition at line 325 of file vf_pixelize.c.

pixelize_outputs

const AVFilterPad pixelize_outputs[]

static

Initial value:

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

Definition at line 333 of file vf_pixelize.c.

ff_vf_pixelize

const AVFilter ff_vf_pixelize

Initial value:

= {
    .name          = "pixelize",
    .description   = NULL_IF_CONFIG_SMALL("Pixelize video."),
    .priv_size     = sizeof(PixelizeContext),
    .priv_class    = &pixelize_class,
    FILTER_INPUTS(pixelize_inputs),
    FILTER_OUTPUTS(pixelize_outputs),
    FILTER_PIXFMTS_ARRAY(pix_fmts),
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC | AVFILTER_FLAG_SLICE_THREADS,
    .process_command = ff_filter_process_command,
}

Definition at line 341 of file vf_pixelize.c.