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vf_boxblur.c File Reference

Apply a boxblur filter to the input video. More...

#include "libavutil/avstring.h"
#include "libavutil/common.h"
#include "libavutil/eval.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Go to the source code of this file.

Data Structures

struct  FilterParam
 
struct  BoxBlurContext
 

Macros

#define Y   0
 
#define U   1
 
#define V   2
 
#define A   3
 
#define EVAL_RADIUS_EXPR(comp)
 
#define CHECK_RADIUS_VAL(w_, h_, comp)
 
#define BLUR(type, depth)
 
#define OFFSET(x)   offsetof(BoxBlurContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM
 

Enumerations

enum  var_name {
  VAR_CH, VAR_N, VAR_NB_IN_CHANNELS, VAR_NB_OUT_CHANNELS,
  VAR_T, VAR_S, VAR_VARS_NB, VAR_VALUE1,
  VAR_VALUE2, VAR_VARS_NB, VAR_TB, VAR_PTS,
  VAR_START_PTS, VAR_PREV_PTS, VAR_PREV_SELECTED_PTS, VAR_T,
  VAR_START_T, VAR_PREV_T, VAR_PREV_SELECTED_T, VAR_PICT_TYPE,
  VAR_I, VAR_P, VAR_B, VAR_S,
  VAR_SI, VAR_SP, VAR_BI, VAR_PICT_TYPE_I,
  VAR_PICT_TYPE_P, VAR_PICT_TYPE_B, VAR_PICT_TYPE_S, VAR_PICT_TYPE_SI,
  VAR_PICT_TYPE_SP, VAR_PICT_TYPE_BI, VAR_INTERLACE_TYPE, VAR_INTERLACE_TYPE_P,
  VAR_INTERLACE_TYPE_T, VAR_INTERLACE_TYPE_B, VAR_CONSUMED_SAMPLES_N, VAR_SAMPLES_N,
  VAR_SAMPLE_RATE, VAR_N, VAR_SELECTED_N, VAR_PREV_SELECTED_N,
  VAR_KEY, VAR_POS, VAR_SCENE, VAR_CONCATDEC_SELECT,
  VAR_VARS_NB, VAR_FRAME_RATE, VAR_INTERLACED, VAR_N,
  VAR_NB_CONSUMED_SAMPLES, VAR_NB_SAMPLES, VAR_POS, VAR_PREV_INPTS,
  VAR_PREV_INT, VAR_PREV_OUTPTS, VAR_PREV_OUTT, VAR_PTS,
  VAR_SAMPLE_RATE, VAR_STARTPTS, VAR_STARTT, VAR_T,
  VAR_TB, VAR_RTCTIME, VAR_RTCSTART, VAR_S,
  VAR_SR, VAR_VARS_NB, VAR_AVTB, VAR_INTB,
  VAR_SR, VAR_VARS_NB, VAR_W, VAR_H,
  VAR_A, VAR_DAR, VAR_SAR, VAR_HSUB,
  VAR_VSUB, VARS_NB, VAR_W, VAR_H,
  VAR_CW, VAR_CH, VAR_HSUB, VAR_VSUB,
  VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H,
  VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H,
  VAR_OH, VAR_A, VAR_SAR, VAR_DAR,
  VAR_HSUB, VAR_VSUB, VAR_X, VAR_Y,
  VAR_N, VAR_POS, VAR_T, VAR_VARS_NB,
  VAR_DAR, VAR_HSUB, VAR_VSUB, VAR_IN_H,
  VAR_IH, VAR_IN_W, VAR_IW, VAR_SAR,
  VAR_X, VAR_Y, VAR_H, VAR_W,
  VAR_T, VAR_MAX, VARS_NB, VAR_DAR,
  VAR_HSUB, VAR_VSUB, VAR_LINE_H, VAR_LH,
  VAR_MAIN_H, VAR_h, VAR_H, VAR_MAIN_W,
  VAR_w, VAR_W, VAR_MAX_GLYPH_A, VAR_ASCENT,
  VAR_MAX_GLYPH_D, VAR_DESCENT, VAR_MAX_GLYPH_H, VAR_MAX_GLYPH_W,
  VAR_N, VAR_SAR, VAR_T, VAR_TEXT_H,
  VAR_TH, VAR_TEXT_W, VAR_TW, VAR_X,
  VAR_Y, VAR_PICT_TYPE, VAR_VARS_NB, VAR_N,
  VAR_POS, VAR_R, VAR_T, VAR_NB,
  VAR_N, VAR_PTS, VAR_R, VAR_T,
  VAR_TB, VAR_NB, VAR_W, VAR_H,
  VAR_VAL, VAR_MAXVAL, VAR_MINVAL, VAR_NEGVAL,
  VAR_CLIPVAL, VAR_VARS_NB, VAR_W, VAR_H,
  VAR_X, VAR_Y, VAR_VARS_NB, VAR_MAIN_W,
  VAR_MW, VAR_MAIN_H, VAR_MH, VAR_OVERLAY_W,
  VAR_OW, VAR_OVERLAY_H, VAR_OH, VAR_HSUB,
  VAR_VSUB, VAR_X, VAR_Y, VAR_N,
  VAR_POS, VAR_T, VAR_VARS_NB, VAR_IN_W,
  VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W,
  VAR_OW, VAR_OUT_H, VAR_OH, VAR_X,
  VAR_Y, VAR_A, VAR_SAR, VAR_DAR,
  VAR_HSUB, VAR_VSUB, VARS_NB, VAR_IN_W,
  VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W,
  VAR_OW, VAR_OUT_H, VAR_OH, VAR_HSUB,
  VAR_VSUB, VAR_N, VAR_T, VAR_VARS_NB,
  VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,
  VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,
  VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB,
  VAR_VSUB, VAR_OHSUB, VAR_OVSUB, VARS_NB,
  VAR_PI, VAR_PHI, VAR_E, VAR_IN_W,
  VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W,
  VAR_OW, VAR_OUT_H, VAR_OH, VAR_A,
  VAR_DAR, VAR_SAR, VARS_NB, VAR_W,
  VAR_H, VAR_N, VAR_PTS, VAR_R,
  VAR_T, VAR_TB, VAR_NB, VAR_IN_W,
  VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W,
  VAR_OW, VAR_OUT_H, VAR_OH, VAR_IN,
  VAR_ON, VAR_DURATION, VAR_PDURATION, VAR_TIME,
  VAR_FRAME, VAR_ZOOM, VAR_PZOOM, VAR_X,
  VAR_PX, VAR_Y, VAR_PY, VAR_A,
  VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB,
  VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H,
  VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H,
  VAR_OH, VAR_A, VAR_SAR, VAR_DAR,
  VAR_HSUB, VAR_VSUB, VAR_OHSUB, VAR_OVSUB,
  VARS_NB, VAR_X, VAR_Y, VAR_W,
  VAR_H, VAR_TIME, VAR_SPEED, VAR_TEMPO,
  VAR_ORDER, VAR_PATTERN, VAR_ROW, VAR_VARS_NB
}
 

Functions

static av_cold int init (AVFilterContext *ctx)
 
static av_cold void uninit (AVFilterContext *ctx)
 
static int query_formats (AVFilterContext *ctx)
 
static int config_input (AVFilterLink *inlink)
 
static void blur (uint8_t *dst, int dst_step, const uint8_t *src, int src_step, int len, int radius, int pixsize)
 
static void blur_power (uint8_t *dst, int dst_step, const uint8_t *src, int src_step, int len, int radius, int power, uint8_t *temp[2], int pixsize)
 
static void hblur (uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int w, int h, int radius, int power, uint8_t *temp[2], int pixsize)
 
static void vblur (uint8_t *dst, int dst_linesize, const uint8_t *src, int src_linesize, int w, int h, int radius, int power, uint8_t *temp[2], int pixsize)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
 AVFILTER_DEFINE_CLASS (boxblur)
 

Variables

static const char *const var_names []
 
static const AVOption boxblur_options []
 
static const AVFilterPad avfilter_vf_boxblur_inputs []
 
static const AVFilterPad avfilter_vf_boxblur_outputs []
 
AVFilter ff_vf_boxblur
 

Detailed Description

Apply a boxblur filter to the input video.

Ported from MPlayer libmpcodecs/vf_boxblur.c.

Definition in file vf_boxblur.c.

Macro Definition Documentation

#define Y   0
#define U   1

Definition at line 77 of file vf_boxblur.c.

Referenced by config_input().

#define V   2

Definition at line 78 of file vf_boxblur.c.

Referenced by config_input().

#define A   3

Definition at line 79 of file vf_boxblur.c.

Referenced by config_input().

#define EVAL_RADIUS_EXPR (   comp)
Value:
expr = s->comp##_param.radius_expr; \
ret = av_expr_parse_and_eval(&res, expr, var_names, var_values, \
NULL, NULL, NULL, NULL, NULL, 0, ctx); \
s->comp##_param.radius = res; \
if (ret < 0) { \
"Error when evaluating " #comp " radius expression '%s'\n", expr); \
return ret; \
}
#define NULL
Definition: coverity.c:32
const char * s
Definition: avisynth_c.h:768
#define av_log(a,...)
int av_expr_parse_and_eval(double *d, const char *s, const char *const *const_names, const double *const_values, const char *const *func1_names, double(*const *funcs1)(void *, double), const char *const *func2_names, double(*const *funcs2)(void *, double, double), void *opaque, int log_offset, void *log_ctx)
Parse and evaluate an expression.
Definition: eval.c:723
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
return
AVFormatContext * ctx
Definition: movenc.c:48
static const char *const var_names[]
Definition: vf_boxblur.c:38
if(ret< 0)
Definition: vf_mcdeint.c:282
static void comp(unsigned char *dst, int dst_stride, unsigned char *src, int src_stride, int add)
Definition: eamad.c:83

Referenced by config_input().

#define CHECK_RADIUS_VAL (   w_,
  h_,
  comp 
)
Value:
if (s->comp##_param.radius < 0 || \
2*s->comp##_param.radius > FFMIN(w_, h_)) { \
"Invalid " #comp " radius value %d, must be >= 0 and <= %d\n", \
s->comp##_param.radius, FFMIN(w_, h_)/2); \
return AVERROR(EINVAL); \
}
const char * s
Definition: avisynth_c.h:768
#define av_log(a,...)
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
#define AVERROR(e)
Definition: error.h:43
return
#define FFMIN(a, b)
Definition: common.h:96
AVFormatContext * ctx
Definition: movenc.c:48
static void comp(unsigned char *dst, int dst_stride, unsigned char *src, int src_stride, int add)
Definition: eamad.c:83

Referenced by config_input().

#define BLUR (   type,
  depth 
)
Value:
static inline void blur ## depth(type *dst, int dst_step, const type *src, \
int src_step, int len, int radius) \
{ \
const int length = radius*2 + 1; \
const int inv = ((1<<16) + length/2)/length; \
int x, sum = src[radius*src_step]; \
for (x = 0; x < radius; x++) \
sum += src[x*src_step]<<1; \
\
sum = sum*inv + (1<<15); \
for (x = 0; x <= radius; x++) { \
sum += (src[(radius+x)*src_step] - src[(radius-x)*src_step])*inv; \
dst[x*dst_step] = sum>>16; \
} \
for (; x < len-radius; x++) { \
sum += (src[(radius+x)*src_step] - src[(x-radius-1)*src_step])*inv; \
dst[x*dst_step] = sum >>16; \
} \
for (; x < len; x++) { \
sum += (src[(2*len-radius-x-1)*src_step] - src[(x-radius-1)*src_step])*inv; \
dst[x*dst_step] = sum>>16; \
} \
}
static void blur(uint8_t *dst, int dst_step, const uint8_t *src, int src_step, int len, int radius, int pixsize)
Definition: vf_boxblur.c:255
GLsizei GLsizei * length
Definition: opengl_enc.c:115
int depth
Definition: v4l.c:62
#define src
Definition: vp9dsp.c:530
GLint GLenum type
Definition: opengl_enc.c:105
int len
for(j=16;j >0;--j)

Definition at line 221 of file vf_boxblur.c.

#define OFFSET (   x)    offsetof(BoxBlurContext, x)

Definition at line 360 of file vf_boxblur.c.

Definition at line 361 of file vf_boxblur.c.

Enumeration Type Documentation

enum var_name
Enumerator
VAR_CH 
VAR_N 
VAR_NB_IN_CHANNELS 
VAR_NB_OUT_CHANNELS 
VAR_T 
VAR_S 
VAR_VARS_NB 
VAR_VALUE1 
VAR_VALUE2 
VAR_VARS_NB 
VAR_TB 
VAR_PTS 
VAR_START_PTS 
VAR_PREV_PTS 
VAR_PREV_SELECTED_PTS 
VAR_T 
VAR_START_T 
VAR_PREV_T 
VAR_PREV_SELECTED_T 
VAR_PICT_TYPE 
VAR_I 
VAR_P 
VAR_B 
VAR_S 
VAR_SI 
VAR_SP 
VAR_BI 
VAR_PICT_TYPE_I 
VAR_PICT_TYPE_P 
VAR_PICT_TYPE_B 
VAR_PICT_TYPE_S 
VAR_PICT_TYPE_SI 
VAR_PICT_TYPE_SP 
VAR_PICT_TYPE_BI 
VAR_INTERLACE_TYPE 
VAR_INTERLACE_TYPE_P 
VAR_INTERLACE_TYPE_T 
VAR_INTERLACE_TYPE_B 
VAR_CONSUMED_SAMPLES_N 
VAR_SAMPLES_N 
VAR_SAMPLE_RATE 
VAR_N 
VAR_SELECTED_N 
VAR_PREV_SELECTED_N 
VAR_KEY 
VAR_POS 
VAR_SCENE 
VAR_CONCATDEC_SELECT 
VAR_VARS_NB 
VAR_FRAME_RATE 
VAR_INTERLACED 
VAR_N 
VAR_NB_CONSUMED_SAMPLES 
VAR_NB_SAMPLES 
VAR_POS 
VAR_PREV_INPTS 
VAR_PREV_INT 
VAR_PREV_OUTPTS 
VAR_PREV_OUTT 
VAR_PTS 
VAR_SAMPLE_RATE 
VAR_STARTPTS 
VAR_STARTT 
VAR_T 
VAR_TB 
VAR_RTCTIME 
VAR_RTCSTART 
VAR_S 
VAR_SR 
VAR_VARS_NB 
VAR_AVTB 
VAR_INTB 
VAR_SR 
VAR_VARS_NB 
VAR_W 
VAR_H 
VAR_A 
VAR_DAR 
VAR_SAR 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_W 
VAR_H 
VAR_CW 
VAR_CH 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_X 
VAR_Y 
VAR_N 
VAR_POS 
VAR_T 
VAR_VARS_NB 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_IN_H 
VAR_IH 
VAR_IN_W 
VAR_IW 
VAR_SAR 
VAR_X 
VAR_Y 
VAR_H 
VAR_W 
VAR_T 
VAR_MAX 
VARS_NB 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_LINE_H 
VAR_LH 
VAR_MAIN_H 
VAR_h 
VAR_H 
VAR_MAIN_W 
VAR_w 
VAR_W 
VAR_MAX_GLYPH_A 
VAR_ASCENT 
VAR_MAX_GLYPH_D 
VAR_DESCENT 
VAR_MAX_GLYPH_H 
VAR_MAX_GLYPH_W 
VAR_N 
VAR_SAR 
VAR_T 
VAR_TEXT_H 
VAR_TH 
VAR_TEXT_W 
VAR_TW 
VAR_X 
VAR_Y 
VAR_PICT_TYPE 
VAR_VARS_NB 
VAR_N 
VAR_POS 
VAR_R 
VAR_T 
VAR_NB 
VAR_N 
VAR_PTS 
VAR_R 
VAR_T 
VAR_TB 
VAR_NB 
VAR_W 
VAR_H 
VAR_VAL 
VAR_MAXVAL 
VAR_MINVAL 
VAR_NEGVAL 
VAR_CLIPVAL 
VAR_VARS_NB 
VAR_W 
VAR_H 
VAR_X 
VAR_Y 
VAR_VARS_NB 
VAR_MAIN_W 
VAR_MW 
VAR_MAIN_H 
VAR_MH 
VAR_OVERLAY_W 
VAR_OW 
VAR_OVERLAY_H 
VAR_OH 
VAR_HSUB 
VAR_VSUB 
VAR_X 
VAR_Y 
VAR_N 
VAR_POS 
VAR_T 
VAR_VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_X 
VAR_Y 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_HSUB 
VAR_VSUB 
VAR_N 
VAR_T 
VAR_VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_OHSUB 
VAR_OVSUB 
VARS_NB 
VAR_PI 
VAR_PHI 
VAR_E 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_DAR 
VAR_SAR 
VARS_NB 
VAR_W 
VAR_H 
VAR_N 
VAR_PTS 
VAR_R 
VAR_T 
VAR_TB 
VAR_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_IN 
VAR_ON 
VAR_DURATION 
VAR_PDURATION 
VAR_TIME 
VAR_FRAME 
VAR_ZOOM 
VAR_PZOOM 
VAR_X 
VAR_PX 
VAR_Y 
VAR_PY 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_OHSUB 
VAR_OVSUB 
VARS_NB 
VAR_X 
VAR_Y 
VAR_W 
VAR_H 
VAR_TIME 
VAR_SPEED 
VAR_TEMPO 
VAR_ORDER 
VAR_PATTERN 
VAR_ROW 
VAR_VARS_NB 

Definition at line 48 of file vf_boxblur.c.

Function Documentation

static av_cold int init ( AVFilterContext ctx)
static

Definition at line 81 of file vf_boxblur.c.

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 110 of file vf_boxblur.c.

static int query_formats ( AVFilterContext ctx)
static

Definition at line 118 of file vf_boxblur.c.

static int config_input ( AVFilterLink inlink)
static

Definition at line 135 of file vf_boxblur.c.

static void blur ( uint8_t dst,
int  dst_step,
const uint8_t src,
int  src_step,
int  len,
int  radius,
int  pixsize 
)
inlinestatic

Definition at line 255 of file vf_boxblur.c.

Referenced by blur_power().

static void blur_power ( uint8_t dst,
int  dst_step,
const uint8_t src,
int  src_step,
int  len,
int  radius,
int  power,
uint8_t temp[2],
int  pixsize 
)
inlinestatic

Definition at line 262 of file vf_boxblur.c.

Referenced by hblur(), and vblur().

static void hblur ( uint8_t dst,
int  dst_linesize,
const uint8_t src,
int  src_linesize,
int  w,
int  h,
int  radius,
int  power,
uint8_t temp[2],
int  pixsize 
)
static

Definition at line 296 of file vf_boxblur.c.

Referenced by filter_frame().

static void vblur ( uint8_t dst,
int  dst_linesize,
const uint8_t src,
int  src_linesize,
int  w,
int  h,
int  radius,
int  power,
uint8_t temp[2],
int  pixsize 
)
static

Definition at line 309 of file vf_boxblur.c.

Referenced by filter_frame().

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 322 of file vf_boxblur.c.

AVFILTER_DEFINE_CLASS ( boxblur  )

Variable Documentation

const char* const var_names[]
static
Initial value:
= {
"w",
"h",
"cw",
"ch",
"hsub",
"vsub",
}
#define NULL
Definition: coverity.c:32

Definition at line 38 of file vf_boxblur.c.

const AVOption boxblur_options[]
static
Initial value:
= {
{ "luma_radius", "Radius of the luma blurring box", OFFSET(luma_param.radius_expr), AV_OPT_TYPE_STRING, {.str="2"}, .flags = FLAGS },
{ "lr", "Radius of the luma blurring box", OFFSET(luma_param.radius_expr), AV_OPT_TYPE_STRING, {.str="2"}, .flags = FLAGS },
{ "luma_power", "How many times should the boxblur be applied to luma", OFFSET(luma_param.power), AV_OPT_TYPE_INT, {.i64=2}, 0, INT_MAX, .flags = FLAGS },
{ "lp", "How many times should the boxblur be applied to luma", OFFSET(luma_param.power), AV_OPT_TYPE_INT, {.i64=2}, 0, INT_MAX, .flags = FLAGS },
{ "chroma_radius", "Radius of the chroma blurring box", OFFSET(chroma_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
{ "cr", "Radius of the chroma blurring box", OFFSET(chroma_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
{ "chroma_power", "How many times should the boxblur be applied to chroma", OFFSET(chroma_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
{ "cp", "How many times should the boxblur be applied to chroma", OFFSET(chroma_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
{ "alpha_radius", "Radius of the alpha blurring box", OFFSET(alpha_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
{ "ar", "Radius of the alpha blurring box", OFFSET(alpha_param.radius_expr), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
{ "alpha_power", "How many times should the boxblur be applied to alpha", OFFSET(alpha_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
{ "ap", "How many times should the boxblur be applied to alpha", OFFSET(alpha_param.power), AV_OPT_TYPE_INT, {.i64=-1}, -1, INT_MAX, .flags = FLAGS },
{ NULL }
}
#define NULL
Definition: coverity.c:32
#define OFFSET(x)
Definition: vf_boxblur.c:360
#define FLAGS
Definition: vf_boxblur.c:361

Definition at line 363 of file vf_boxblur.c.

const AVFilterPad avfilter_vf_boxblur_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_input,
.filter_frame = filter_frame,
},
{ NULL }
}
#define NULL
Definition: coverity.c:32
static int config_input(AVFilterLink *inlink)
Definition: vf_boxblur.c:135
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_boxblur.c:322

Definition at line 384 of file vf_boxblur.c.

const AVFilterPad avfilter_vf_boxblur_outputs[]
static
Initial value:
= {
{
.name = "default",
},
{ NULL }
}
#define NULL
Definition: coverity.c:32

Definition at line 394 of file vf_boxblur.c.

AVFilter ff_vf_boxblur
Initial value:
= {
.name = "boxblur",
.description = NULL_IF_CONFIG_SMALL("Blur the input."),
.priv_size = sizeof(BoxBlurContext),
.priv_class = &boxblur_class,
.init = init,
}
static av_cold int init(AVFilterContext *ctx)
Definition: vf_boxblur.c:81
#define AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC
Some filters support a generic "enable" expression option that can be used to enable or disable a fil...
Definition: avfilter.h:125
static const AVFilterPad avfilter_vf_boxblur_outputs[]
Definition: vf_boxblur.c:394
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:176
static int query_formats(AVFilterContext *ctx)
Definition: vf_boxblur.c:118
static const AVFilterPad avfilter_vf_boxblur_inputs[]
Definition: vf_boxblur.c:384
static const AVFilterPad outputs[]
Definition: af_afftfilt.c:386
static const AVFilterPad inputs[]
Definition: af_afftfilt.c:376
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_boxblur.c:110
static int flags
Definition: cpu.c:47

Definition at line 402 of file vf_boxblur.c.