vf_convolution.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.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	ConvolutionContext
struct	ThreadData
	Used for passing data between threads. More...

Macros
#define	OFFSET(x)   offsetof(ConvolutionContext, x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Enumerations
enum	MatrixMode { MATRIX_SQUARE, MATRIX_ROW, MATRIX_COLUMN, MATRIX_NBMODES }

Functions
	AVFILTER_DEFINE_CLASS (convolution)
static int	query_formats (AVFilterContext *ctx)
static void	filter16_prewitt (uint8_t *dstp, int width, float scale, float delta, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter16_roberts (uint8_t *dstp, int width, float scale, float delta, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter16_sobel (uint8_t *dstp, int width, float scale, float delta, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter_prewitt (uint8_t *dst, int width, float scale, float delta, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter_roberts (uint8_t *dst, int width, float scale, float delta, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter_sobel (uint8_t *dst, int width, float scale, float delta, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter16_3x3 (uint8_t *dstp, int width, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter16_5x5 (uint8_t *dstp, int width, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter16_7x7 (uint8_t *dstp, int width, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter16_row (uint8_t *dstp, int width, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter16_column (uint8_t *dstp, int height, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter_7x7 (uint8_t *dst, int width, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter_5x5 (uint8_t *dst, int width, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter_3x3 (uint8_t *dst, int width, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter_row (uint8_t *dst, int width, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	filter_column (uint8_t *dst, int height, float rdiv, float bias, const int *const matrix, const uint8_t *c[], int peak, int radius, int dstride, int stride)
static void	setup_3x3 (int radius, const uint8_t *c[], const uint8_t *src, int stride, int x, int w, int y, int h, int bpc)
static void	setup_5x5 (int radius, const uint8_t *c[], const uint8_t *src, int stride, int x, int w, int y, int h, int bpc)
static void	setup_7x7 (int radius, const uint8_t *c[], const uint8_t *src, int stride, int x, int w, int y, int h, int bpc)
static void	setup_row (int radius, const uint8_t *c[], const uint8_t *src, int stride, int x, int w, int y, int h, int bpc)
static void	setup_column (int radius, const uint8_t *c[], const uint8_t *src, int stride, int x, int w, int y, int h, int bpc)
static int	filter_slice (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	config_input (AVFilterLink *inlink)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
static av_cold int	init (AVFilterContext *ctx)

Variables
static const AVOption	convolution_options []
static const int	same3x3 [9]
static const int	same5x5 [25]
static const int	same7x7 [49]
static const AVFilterPad	convolution_inputs []
static const AVFilterPad	convolution_outputs []

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

offsetof(ConvolutionContext, x)

Definition at line 70 of file vf_convolution.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 71 of file vf_convolution.c.

Enumeration Type Documentation

MatrixMode

enum MatrixMode

Enumerator
MATRIX_SQUARE
MATRIX_ROW
MATRIX_COLUMN
MATRIX_NBMODES

Definition at line 32 of file vf_convolution.c.

Function Documentation

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

convolution

)

query_formats()

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 116 of file vf_convolution.c.

filter16_prewitt()

static void filter16_prewitt ( uint8_t *  dstp, int  width, float  scale, float  delta, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 146 of file vf_convolution.c.

Referenced by config_input().

filter16_roberts()

static void filter16_roberts ( uint8_t *  dstp, int  width, float  scale, float  delta, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 164 of file vf_convolution.c.

Referenced by config_input().

filter16_sobel()

static void filter16_sobel ( uint8_t *  dstp, int  width, float  scale, float  delta, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 180 of file vf_convolution.c.

Referenced by config_input().

filter_prewitt()

static void filter_prewitt ( uint8_t *  dst, int  width, float  scale, float  delta, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 198 of file vf_convolution.c.

Referenced by init().

filter_roberts()

static void filter_roberts ( uint8_t *  dst, int  width, float  scale, float  delta, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 218 of file vf_convolution.c.

Referenced by init().

filter_sobel()

static void filter_sobel ( uint8_t *  dst, int  width, float  scale, float  delta, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 233 of file vf_convolution.c.

Referenced by init().

filter16_3x3()

static void filter16_3x3 ( uint8_t *  dstp, int  width, float  rdiv, float  bias, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 253 of file vf_convolution.c.

Referenced by config_input().

filter16_5x5()

static void filter16_5x5 ( uint8_t *  dstp, int  width, float  rdiv, float  bias, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 276 of file vf_convolution.c.

Referenced by config_input().

filter16_7x7()

static void filter16_7x7 ( uint8_t *  dstp, int  width, float  rdiv, float  bias, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 295 of file vf_convolution.c.

Referenced by config_input().

filter16_row()

static void filter16_row ( uint8_t *  dstp, int  width, float  rdiv, float  bias, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 314 of file vf_convolution.c.

Referenced by config_input().

filter16_column()

static void filter16_column ( uint8_t *  dstp, int  height, float  rdiv, float  bias, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 333 of file vf_convolution.c.

Referenced by config_input().

filter_7x7()

static void filter_7x7 ( uint8_t *  dst, int  width, float  rdiv, float  bias, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 353 of file vf_convolution.c.

Referenced by init().

filter_5x5()

static void filter_5x5 ( uint8_t *  dst, int  width, float  rdiv, float  bias, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 371 of file vf_convolution.c.

Referenced by init().

filter_3x3()

static void filter_3x3 ( uint8_t *  dst, int  width, float  rdiv, float  bias, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 389 of file vf_convolution.c.

Referenced by init().

filter_row()

static void filter_row ( uint8_t *  dst, int  width, float  rdiv, float  bias, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 408 of file vf_convolution.c.

Referenced by init().

filter_column()

static void filter_column ( uint8_t *  dst, int  height, float  rdiv, float  bias, const int *const  matrix, const uint8_t *  c[], int  peak, int  radius, int  dstride, int  stride  )

static

Definition at line 426 of file vf_convolution.c.

Referenced by init().

setup_3x3()

static void setup_3x3 ( int  radius, const uint8_t *  c[], const uint8_t *  src, int  stride, int  x, int  w, int  y, int  h, int  bpc  )

static

Definition at line 445 of file vf_convolution.c.

Referenced by init().

setup_5x5()

static void setup_5x5 ( int  radius, const uint8_t *  c[], const uint8_t *  src, int  stride, int  x, int  w, int  y, int  h, int  bpc  )

static

Definition at line 461 of file vf_convolution.c.

Referenced by init().

setup_7x7()

static void setup_7x7 ( int  radius, const uint8_t *  c[], const uint8_t *  src, int  stride, int  x, int  w, int  y, int  h, int  bpc  )

static

Definition at line 477 of file vf_convolution.c.

Referenced by init().

setup_row()

static void setup_row ( int  radius, const uint8_t *  c[], const uint8_t *  src, int  stride, int  x, int  w, int  y, int  h, int  bpc  )

static

Definition at line 493 of file vf_convolution.c.

Referenced by init().

setup_column()

static void setup_column ( int  radius, const uint8_t *  c[], const uint8_t *  src, int  stride, int  x, int  w, int  y, int  h, int  bpc  )

static

Definition at line 507 of file vf_convolution.c.

Referenced by init().

filter_slice()

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

static

Definition at line 521 of file vf_convolution.c.

Referenced by filter_frame().

config_input()

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 594 of file vf_convolution.c.

filter_frame()

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

static

Definition at line 645 of file vf_convolution.c.

init()

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 668 of file vf_convolution.c.

Variable Documentation

convolution_options

const AVOption convolution_options[]

static

Initial value:

= {
    { "0m", "set matrix for 1st plane", OFFSET(matrix_str[0]), AV_OPT_TYPE_STRING, {.str="0 0 0 0 1 0 0 0 0"}, 0, 0, FLAGS },
    { "1m", "set matrix for 2nd plane", OFFSET(matrix_str[1]), AV_OPT_TYPE_STRING, {.str="0 0 0 0 1 0 0 0 0"}, 0, 0, FLAGS },
    { "2m", "set matrix for 3rd plane", OFFSET(matrix_str[2]), AV_OPT_TYPE_STRING, {.str="0 0 0 0 1 0 0 0 0"}, 0, 0, FLAGS },
    { "3m", "set matrix for 4th plane", OFFSET(matrix_str[3]), AV_OPT_TYPE_STRING, {.str="0 0 0 0 1 0 0 0 0"}, 0, 0, FLAGS },
    { "0rdiv", "set rdiv for 1st plane", OFFSET(rdiv[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.0}, 0.0, INT_MAX, FLAGS},
    { "1rdiv", "set rdiv for 2nd plane", OFFSET(rdiv[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.0}, 0.0, INT_MAX, FLAGS},
    { "2rdiv", "set rdiv for 3rd plane", OFFSET(rdiv[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.0}, 0.0, INT_MAX, FLAGS},
    { "3rdiv", "set rdiv for 4th plane", OFFSET(rdiv[3]), AV_OPT_TYPE_FLOAT, {.dbl=0.0}, 0.0, INT_MAX, FLAGS},
    { "0bias", "set bias for 1st plane", OFFSET(bias[0]), AV_OPT_TYPE_FLOAT, {.dbl=0.0}, 0.0, INT_MAX, FLAGS},
    { "1bias", "set bias for 2nd plane", OFFSET(bias[1]), AV_OPT_TYPE_FLOAT, {.dbl=0.0}, 0.0, INT_MAX, FLAGS},
    { "2bias", "set bias for 3rd plane", OFFSET(bias[2]), AV_OPT_TYPE_FLOAT, {.dbl=0.0}, 0.0, INT_MAX, FLAGS},
    { "3bias", "set bias for 4th plane", OFFSET(bias[3]), AV_OPT_TYPE_FLOAT, {.dbl=0.0}, 0.0, INT_MAX, FLAGS},
    { "0mode", "set matrix mode for 1st plane", OFFSET(mode[0]), AV_OPT_TYPE_INT, {.i64=MATRIX_SQUARE}, 0, MATRIX_NBMODES-1, FLAGS, "mode" },
    { "1mode", "set matrix mode for 2nd plane", OFFSET(mode[1]), AV_OPT_TYPE_INT, {.i64=MATRIX_SQUARE}, 0, MATRIX_NBMODES-1, FLAGS, "mode" },
    { "2mode", "set matrix mode for 3rd plane", OFFSET(mode[2]), AV_OPT_TYPE_INT, {.i64=MATRIX_SQUARE}, 0, MATRIX_NBMODES-1, FLAGS, "mode" },
    { "3mode", "set matrix mode for 4th plane", OFFSET(mode[3]), AV_OPT_TYPE_INT, {.i64=MATRIX_SQUARE}, 0, MATRIX_NBMODES-1, FLAGS, "mode" },
    { "square", "square matrix",     0, AV_OPT_TYPE_CONST, {.i64=MATRIX_SQUARE}, 0, 0, FLAGS, "mode" },
    { "row",    "single row matrix", 0, AV_OPT_TYPE_CONST, {.i64=MATRIX_ROW}   , 0, 0, FLAGS, "mode" },
    { "column", "single column matrix", 0, AV_OPT_TYPE_CONST, {.i64=MATRIX_COLUMN}, 0, 0, FLAGS, "mode" },
    { NULL }
}

Definition at line 73 of file vf_convolution.c.

same3x3

const int same3x3[9]

static

Initial value:

= {0, 0, 0,
                               0, 1, 0,
                               0, 0, 0}

Definition at line 98 of file vf_convolution.c.

Referenced by init().

same5x5

const int same5x5[25]

static

Initial value:

= {0, 0, 0, 0, 0,
                                0, 0, 0, 0, 0,
                                0, 0, 1, 0, 0,
                                0, 0, 0, 0, 0,
                                0, 0, 0, 0, 0}

Definition at line 102 of file vf_convolution.c.

Referenced by init().

same7x7

const int same7x7[49]

static

Initial value:

= {0, 0, 0, 0, 0, 0, 0,
                                0, 0, 0, 0, 0, 0, 0,
                                0, 0, 0, 0, 0, 0, 0,
                                0, 0, 0, 1, 0, 0, 0,
                                0, 0, 0, 0, 0, 0, 0,
                                0, 0, 0, 0, 0, 0, 0,
                                0, 0, 0, 0, 0, 0, 0}

Definition at line 108 of file vf_convolution.c.

Referenced by init().

convolution_inputs

const AVFilterPad convolution_inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_VIDEO,
        .config_props = config_input,
        .filter_frame = filter_frame,
    },
    { NULL }
}

Definition at line 773 of file vf_convolution.c.

convolution_outputs

const AVFilterPad convolution_outputs[]

static

Initial value:

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

Definition at line 783 of file vf_convolution.c.