vf_libopencv.c File Reference

libopencv wrapper functions More...

#include <opencv/cv.h>
#include <opencv/cxcore.h>
#include "libavutil/avstring.h"
#include "libavutil/common.h"
#include "libavutil/file.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "video.h"

Include dependency graph for vf_libopencv.c:

Go to the source code of this file.

Data Structures
struct	OCVContext
struct	SmoothContext
struct	DilateContext
struct	OCVFilterEntry

Macros
#define	OFFSET(x)   offsetof(OCVContext, 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 int	query_formats (AVFilterContext *ctx)
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)

Variables
static OCVFilterEntry	ocv_filter_entries []
static const AVOption	options []
static const AVClass	ocv_class
static const AVFilterPad	avfilter_vf_ocv_inputs []
static const AVFilterPad	avfilter_vf_ocv_outputs []
AVFilter	avfilter_vf_ocv

Detailed Description

libopencv wrapper functions

Definition in file vf_libopencv.c.

Macro Definition Documentation

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_FILTERING_PARAM

Definition at line 382 of file vf_libopencv.c.

#define OFFSET

(

x

)

offsetof(OCVContext, x)

Definition at line 381 of file vf_libopencv.c.

Function Documentation

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

static

Definition at line 293 of file vf_libopencv.c.

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

static

Definition at line 255 of file vf_libopencv.c.

static av_cold void dilate_uninit ( AVFilterContext *  ctx )

static

Definition at line 285 of file vf_libopencv.c.

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

static

Definition at line 300 of file vf_libopencv.c.

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().

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

static

Definition at line 39 of file vf_libopencv.c.

Referenced by filter_frame().

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

static

Definition at line 356 of file vf_libopencv.c.

static av_cold int init ( AVFilterContext *  ctx )

static

Definition at line 321 of file vf_libopencv.c.

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

static

Definition at line 206 of file vf_libopencv.c.

Referenced by dilate_init().

static int query_formats ( AVFilterContext *  ctx )

static

Definition at line 63 of file vf_libopencv.c.

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

static

Definition at line 139 of file vf_libopencv.c.

Referenced by parse_iplconvkernel().

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

static

Definition at line 132 of file vf_libopencv.c.

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

static

Definition at line 89 of file vf_libopencv.c.

static av_cold void uninit ( AVFilterContext *  ctx )

static

Definition at line 347 of file vf_libopencv.c.

Variable Documentation

AVFilter avfilter_vf_ocv

Initial value:

= {
    .name        = "ocv",
    .description = NULL_IF_CONFIG_SMALL("Apply transform using libopencv."),

    .priv_size = sizeof(OCVContext),
    .priv_class = &ocv_class,

    .query_formats = query_formats,
    .init = init,
    .uninit = uninit,

    .inputs    = avfilter_vf_ocv_inputs,

    .outputs   = avfilter_vf_ocv_outputs,
}

Definition at line 413 of file vf_libopencv.c.

const AVFilterPad avfilter_vf_ocv_inputs[]

static

Initial value:

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

Definition at line 396 of file vf_libopencv.c.

const AVFilterPad avfilter_vf_ocv_outputs[]

static

Initial value:

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

Definition at line 405 of file vf_libopencv.c.

const AVClass ocv_class

static

Initial value:

= {
    .class_name = "ocv",
    .item_name  = av_default_item_name,
    .option     = options,
    .version    = LIBAVUTIL_VERSION_INT,
}

Definition at line 389 of file vf_libopencv.c.

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 315 of file vf_libopencv.c.

const AVOption 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 383 of file vf_libopencv.c.