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

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 int	config_input (AVFilterLink *inlink)
static void	line_copy8 (uint8_t *line, const uint8_t *srcp, int width, int mergin)
static void	filter_3x3 (ConvolutionContext *s, AVFrame *in, AVFrame *out, int plane)
static void	filter_5x5 (ConvolutionContext *s, AVFrame *in, AVFrame *out, int plane)
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 []
AVFilter	ff_vf_convolution

Macro Definition Documentation

#define OFFSET

(

x

)

offsetof(ConvolutionContext, x)

Definition at line 50 of file vf_convolution.c.

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM|AV_OPT_FLAG_FILTERING_PARAM

Definition at line 51 of file vf_convolution.c.

Function Documentation

AVFILTER_DEFINE_CLASS

(

convolution

)

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 81 of file vf_convolution.c.

static int config_input ( AVFilterLink *  inlink )

static

Definition at line 97 of file vf_convolution.c.

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

inlinestatic

Definition at line 119 of file vf_convolution.c.

Referenced by filter_3x3(), and filter_5x5().

static void filter_3x3 ( ConvolutionContext *  s, AVFrame *  in, AVFrame *  out, int  plane  )

static

Definition at line 131 of file vf_convolution.c.

Referenced by init().

static void filter_5x5 ( ConvolutionContext *  s, AVFrame *  in, AVFrame *  out, int  plane  )

static

Definition at line 176 of file vf_convolution.c.

Referenced by init().

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

static

Definition at line 233 of file vf_convolution.c.

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 263 of file vf_convolution.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 300 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 53 of file vf_convolution.c.

const int same3x3[9]

static

Initial value:

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

Definition at line 71 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 75 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 307 of file vf_convolution.c.

const AVFilterPad convolution_outputs[]

static

Initial value:

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

Definition at line 317 of file vf_convolution.c.

AVFilter ff_vf_convolution

Initial value:

= {
    .name          = "convolution",
    .description   = NULL_IF_CONFIG_SMALL("Apply convolution filter."),
    .priv_size     = sizeof(ConvolutionContext),
    .priv_class    = &convolution_class,
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = convolution_inputs,
    .outputs       = convolution_outputs,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC,
}

Definition at line 325 of file vf_convolution.c.