boxblur.c File Reference

#include "libavutil/mem.h"
#include "boxblur.h"

Go to the source code of this file.

Macros
#define	EVAL_RADIUS_EXPR(comp)
#define	CHECK_RADIUS_VAL(w_, h_, comp)

Enumerations
enum	var_name {   VAR_W , VAR_H , VAR_CW , VAR_CH ,   VAR_HSUB , VAR_VSUB , VARS_NB }

Functions
int	ff_boxblur_eval_filter_params (AVFilterLink *inlink, FilterParam *luma_param, FilterParam *chroma_param, FilterParam *alpha_param)

Variables
static const char *const	var_names []

Macro Definition Documentation

EVAL_RADIUS_EXPR

#define EVAL_RADIUS_EXPR

(

comp

)

Value:

    expr = comp->radius_expr;                                           \
    ret = av_expr_parse_and_eval(&res, expr, var_names, var_values,     \
                                 NULL, NULL, NULL, NULL, NULL, 0, ctx); \
    comp->radius = res;                                                 \
    if (ret < 0) {                                                      \
        av_log(ctx, AV_LOG_ERROR,                                      \
               "Error when evaluating " #comp " radius expression '%s'\n", expr); \
        return ret;                                                     \
    }

Referenced by ff_boxblur_eval_filter_params().

CHECK_RADIUS_VAL

#define CHECK_RADIUS_VAL	(		w_,
			h_,
			comp )

Value:

    if (comp->radius < 0 ||                                   \
        2*comp->radius >= FFMIN(w_, h_)) {                              \
        av_log(ctx, AV_LOG_ERROR,                                       \
               "Invalid " #comp " radius value %d, must be >= 0 and < %d\n", \
               comp->radius, FFMIN(w_, h_)/2);                \
        return AVERROR(EINVAL);                                         \
    }

Referenced by ff_boxblur_eval_filter_params().

Enumeration Type Documentation

var_name

enum var_name

Enumerator
VAR_W
VAR_H
VAR_CW
VAR_CH
VAR_HSUB
VAR_VSUB
VARS_NB

Definition at line 36 of file boxblur.c.

Function Documentation

ff_boxblur_eval_filter_params()

int ff_boxblur_eval_filter_params	(	AVFilterLink *	inlink,
		FilterParam *	luma_param,
		FilterParam *	chroma_param,
		FilterParam *	alpha_param )

Definition at line 47 of file boxblur.c.

Referenced by boxblur_opencl_make_filter_params(), and config_input().

Variable Documentation

var_names

const char* const var_names[]

static

Initial value:

= {
    "w",
    "h",
    "cw",
    "ch",
    "hsub",
    "vsub",
    NULL
}

Definition at line 26 of file boxblur.c.