vf_libopencv.c File Reference

libopencv wrapper functions More...

#include "config.h"
#include <opencv2/core/core_c.h>
#include <opencv2/imgproc/imgproc_c.h>
#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/common.h"
#include "libavutil/file.h"
#include "libavutil/mem.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "filters.h"
#include "formats.h"
#include "video.h"

Go to the source code of this file.

Data Structures
struct	OCVContext
struct	SmoothContext
struct	DilateContext
struct	OCVFilterEntry

Macros
#define	OFFSET(x)
#define	FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Functions
static void	fill_iplimage_from_frame (IplImage **_img, const AVFrame *frame, enum AVPixelFormat pixfmt)
static void	fill_frame_from_iplimage (AVFrame *frame, const IplImage *img, enum AVPixelFormat pixfmt)
static av_cold int	smooth_init (AVFilterContext *ctx, const char *args)
static void	smooth_end_frame_filter (AVFilterContext *ctx, IplImage *inimg, IplImage *outimg)
static int	read_shape_from_file (int *cols, int *rows, int **values, const char *filename, void *log_ctx)
static int	parse_iplconvkernel (IplConvKernel **kernel, char *buf, void *log_ctx)
static av_cold int	dilate_init (AVFilterContext *ctx, const char *args)
static av_cold void	dilate_uninit (AVFilterContext *ctx)
static void	dilate_end_frame_filter (AVFilterContext *ctx, IplImage *inimg, IplImage *outimg)
static void	erode_end_frame_filter (AVFilterContext *ctx, IplImage *inimg, IplImage *outimg)
static av_cold int	init (AVFilterContext *ctx)
static av_cold void	uninit (AVFilterContext *ctx)
static int	filter_frame (AVFilterLink *inlink, AVFrame *in)
	AVFILTER_DEFINE_CLASS (ocv)

Variables
static const OCVFilterEntry	ocv_filter_entries []
static const AVOption	ocv_options []
static const AVFilterPad	avfilter_vf_ocv_inputs []
static const AVFilterPad	avfilter_vf_ocv_outputs []
const FFFilter	ff_vf_ocv

Detailed Description

libopencv wrapper functions

Definition in file vf_libopencv.c.

Macro Definition Documentation

OFFSET

#define OFFSET

(

x

)

Value:

offsetof(OCVContext, x)

Definition at line 392 of file vf_libopencv.c.

FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Definition at line 393 of file vf_libopencv.c.

Function Documentation

fill_iplimage_from_frame()

static void fill_iplimage_from_frame ( IplImage ** _img, const AVFrame * frame, enum AVPixelFormat pixfmt )

static

Definition at line 40 of file vf_libopencv.c.

Referenced by filter_frame().

fill_frame_from_iplimage()

static void fill_frame_from_iplimage ( AVFrame * frame, const IplImage * img, enum AVPixelFormat pixfmt )

static

Definition at line 57 of file vf_libopencv.c.

Referenced by filter_frame().

smooth_init()

static av_cold int smooth_init ( AVFilterContext * ctx, const char * args )

static

Definition at line 79 of file vf_libopencv.c.

smooth_end_frame_filter()

static void smooth_end_frame_filter ( AVFilterContext * ctx, IplImage * inimg, IplImage * outimg )

static

Definition at line 122 of file vf_libopencv.c.

read_shape_from_file()

static int read_shape_from_file ( int * cols, int * rows, int ** values, const char * filename, void * log_ctx )

static

Definition at line 129 of file vf_libopencv.c.

Referenced by parse_iplconvkernel().

parse_iplconvkernel()

static int parse_iplconvkernel ( IplConvKernel ** kernel, char * buf, void * log_ctx )

static

Definition at line 202 of file vf_libopencv.c.

Referenced by dilate_init().

dilate_init()

static av_cold int dilate_init ( AVFilterContext * ctx, const char * args )

static

Definition at line 257 of file vf_libopencv.c.

dilate_uninit()

static av_cold void dilate_uninit ( AVFilterContext * ctx )

static

Definition at line 292 of file vf_libopencv.c.

dilate_end_frame_filter()

static void dilate_end_frame_filter ( AVFilterContext * ctx, IplImage * inimg, IplImage * outimg )

static

Definition at line 302 of file vf_libopencv.c.

erode_end_frame_filter()

static void erode_end_frame_filter ( AVFilterContext * ctx, IplImage * inimg, IplImage * outimg )

static

Definition at line 309 of file vf_libopencv.c.

init()

static av_cold int init ( AVFilterContext * ctx )

static

Definition at line 330 of file vf_libopencv.c.

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 356 of file vf_libopencv.c.

filter_frame()

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

static

Definition at line 365 of file vf_libopencv.c.

AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS

(

ocv

)

Variable Documentation

ocv_filter_entries

const OCVFilterEntry ocv_filter_entries[]

static

Initial value:

= {
    { "dilate", sizeof(DilateContext), dilate_init, dilate_uninit, dilate_end_frame_filter },
    { "erode",  sizeof(DilateContext), dilate_init, dilate_uninit, erode_end_frame_filter  },
    { "smooth", sizeof(SmoothContext), smooth_init, NULL, smooth_end_frame_filter },
}

Definition at line 324 of file vf_libopencv.c.

Referenced by init().

ocv_options

const AVOption ocv_options[]

static

Initial value:

= {
    { "filter_name",   NULL, OFFSET(name),   AV_OPT_TYPE_STRING, .flags = FLAGS },
    { "filter_params", NULL, OFFSET(params), AV_OPT_TYPE_STRING, .flags = FLAGS },
    { NULL }
}

Definition at line 394 of file vf_libopencv.c.

avfilter_vf_ocv_inputs

const AVFilterPad avfilter_vf_ocv_inputs[]

static

Initial value:

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

Definition at line 402 of file vf_libopencv.c.

avfilter_vf_ocv_outputs

const AVFilterPad avfilter_vf_ocv_outputs[]

static

Initial value:

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

Definition at line 410 of file vf_libopencv.c.

ff_vf_ocv

const FFFilter ff_vf_ocv

Initial value:

= {
    .p.name        = "ocv",
    .p.description = NULL_IF_CONFIG_SMALL("Apply transform using libopencv."),
    .p.priv_class  = &ocv_class,
    .priv_size     = sizeof(OCVContext),
    .init          = init,
    .uninit        = uninit,
    FILTER_INPUTS(avfilter_vf_ocv_inputs),
    FILTER_OUTPUTS(avfilter_vf_ocv_outputs),
    FILTER_PIXFMTS(AV_PIX_FMT_BGR24, AV_PIX_FMT_BGRA, AV_PIX_FMT_GRAY8),
}

Definition at line 417 of file vf_libopencv.c.