vf_convolution.c File Reference

#include "libavutil/avstring.h"
#include "libavutil/imgutils.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

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	line_copy8 (uint8_t *line, const uint8_t *srcp, int width, int mergin)
static void	line_copy16 (uint16_t *line, const uint16_t *srcp, int width, int mergin)
static int	filter16_prewitt (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter16_sobel (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_prewitt (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_sobel (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter16_3x3 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter16_5x5 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_3x3 (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
static int	filter_5x5 (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)
static av_cold void	uninit (AVFilterContext *ctx)

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

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(ConvolutionContext, x)

Definition at line 58 of file vf_convolution.c.

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 59 of file vf_convolution.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

convolution

)

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 89 of file vf_convolution.c.

static void line_copy8 ( uint8_t *  line, const uint8_t *  srcp, int  width, int  mergin  )

inlinestatic

Definition at line 115 of file vf_convolution.c.

Referenced by filter_3x3(), filter_5x5(), filter_prewitt(), and filter_sobel().

static void line_copy16 ( uint16_t *  line, const uint16_t *  srcp, int  width, int  mergin  )

inlinestatic

Definition at line 127 of file vf_convolution.c.

Referenced by filter16_3x3(), filter16_5x5(), filter16_prewitt(), and filter16_sobel().

static int filter16_prewitt ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 144 of file vf_convolution.c.

Referenced by config_input().

static int filter16_sobel ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 201 of file vf_convolution.c.

Referenced by config_input().

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

static

Definition at line 258 of file vf_convolution.c.

Referenced by init().

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

static

Definition at line 314 of file vf_convolution.c.

Referenced by init().

static int filter16_3x3 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 370 of file vf_convolution.c.

Referenced by config_input().

static int filter16_5x5 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 425 of file vf_convolution.c.

Referenced by config_input().

static int filter_3x3 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 491 of file vf_convolution.c.

Referenced by init().

static int filter_5x5 ( AVFilterContext *  ctx, void *  arg, int  jobnr, int  nb_jobs  )

static

Definition at line 545 of file vf_convolution.c.

Referenced by init().

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 611 of file vf_convolution.c.

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

static

Definition at line 663 of file vf_convolution.c.

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 699 of file vf_convolution.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 754 of file vf_convolution.c.

Variable Documentation

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=1.0}, 0.0, INT_MAX, FLAGS},
    { "1rdiv", "set rdiv for 2nd plane", OFFSET(rdiv[1]), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, 0.0, INT_MAX, FLAGS},
    { "2rdiv", "set rdiv for 3rd plane", OFFSET(rdiv[2]), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, 0.0, INT_MAX, FLAGS},
    { "3rdiv", "set rdiv for 4th plane", OFFSET(rdiv[3]), AV_OPT_TYPE_FLOAT, {.dbl=1.0}, 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},
    { NULL }
}

Definition at line 61 of file vf_convolution.c.

const int same3x3[9]

static

Initial value:

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

Definition at line 79 of file vf_convolution.c.

Referenced by init().

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 83 of file vf_convolution.c.

Referenced by init().

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 762 of file vf_convolution.c.

const AVFilterPad convolution_outputs[]

static

Initial value:

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

Definition at line 772 of file vf_convolution.c.