#include "libavutil/avstring.h"
#include "libavutil/imgutils.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "convolution.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Data Structures
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

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 33 of file vf_convolution.c.

◆ FLAGS

#define FLAGS AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 34 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 79 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 110 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 128 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 144 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 162 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 182 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 197 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 217 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 240 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 259 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 278 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 297 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 317 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 335 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 353 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 372 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 390 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 409 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 425 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 441 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 457 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 471 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 485 of file vf_convolution.c.

Referenced by filter_frame().

◆ config_input()

static int config_input ( AVFilterLink * inlink )

static

Definition at line 558 of file vf_convolution.c.

◆ filter_frame()

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

static

Definition at line 612 of file vf_convolution.c.

◆ init()

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 635 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 36 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 61 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 65 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 71 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 740 of file vf_convolution.c.

◆ convolution_outputs

const AVFilterPad convolution_outputs[]

static

Initial value:

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

Definition at line 750 of file vf_convolution.c.

Data Structures

Macros

Functions

Variables

Macro Definition Documentation

◆ OFFSET

◆ FLAGS

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

◆ query_formats()

◆ filter16_prewitt()

◆ filter16_roberts()

◆ filter16_sobel()

◆ filter_prewitt()

◆ filter_roberts()

◆ filter_sobel()

◆ filter16_3x3()

◆ filter16_5x5()

◆ filter16_7x7()

◆ filter16_row()

◆ filter16_column()

◆ filter_7x7()

◆ filter_5x5()

◆ filter_3x3()

◆ filter_row()

◆ filter_column()

◆ setup_3x3()

◆ setup_5x5()

◆ setup_7x7()

◆ setup_row()

◆ setup_column()

◆ filter_slice()

◆ config_input()

◆ filter_frame()

◆ init()

Variable Documentation

◆ convolution_options

◆ same3x3

◆ same5x5

◆ same7x7

◆ convolution_inputs

◆ convolution_outputs