vsrc_mandelbrot.c File Reference

Mandelbrot fractal renderer. More...

#include "avfilter.h"
#include "formats.h"
#include "video.h"
#include "internal.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/parseutils.h"
#include <float.h>
#include <math.h>

Classes
struct	Point
struct	MBContext

Macros
#define	SQR(a)   ((a)*(a))
#define	OFFSET(x)   offsetof(MBContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
#define	Z_Z2_C(outr, outi, inr, ini)
#define	Z_Z2_C_ZYKLUS(outr, outi, inr, ini, Z)

Typedefs
typedef struct Point	Point
typedef struct MBContext	MBContext

Enumerations
enum	Outer { ITERATION_COUNT, NORMALIZED_ITERATION_COUNT, WHITE, OUTZ }
enum	Inner { BLACK, PERIOD, CONVTIME, MINCOL }

Functions
	AVFILTER_DEFINE_CLASS (mandelbrot)

Variables
AVFilter	ff_vsrc_mandelbrot

Detailed Description

Mandelbrot fractal renderer.

Macro Definition Documentation

Z_Z2_C

#define Z_Z2_C	(		outr,
			outi,
			inr,
			ini
	)

Value:

outr= inr*inr - ini*ini + cr;\
            outi= 2*inr*ini + ci;

Z_Z2_C_ZYKLUS

#define Z_Z2_C_ZYKLUS	(		outr,
			outi,
			inr,
			ini,
			Z
	)

Value:

Z_Z2_C(outr,outi,inr,ini)\
            if(use_zyklus){\
                if(Z && fabs(s->zyklus[i>>1][0]-outr)+fabs(s->zyklus[i>>1][1]-outi) <= epsilon)\
                    break;\
            }\
            s->zyklus[i][0]= outr;\
            s->zyklus[i][1]= outi;\

Variable Documentation

ff_vsrc_mandelbrot

AVFilter ff_vsrc_mandelbrot

Initial value:

= {
    .name          = "mandelbrot",
    .description   = NULL_IF_CONFIG_SMALL("Render a Mandelbrot fractal."),
    .priv_size     = sizeof(MBContext),
    .priv_class    = &mandelbrot_class,
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = NULL,
    .outputs       = mandelbrot_outputs,
}