Data Structures | Functions | Variables
vf_libopencv.c File Reference

libopencv wrapper functions More...

#include <opencv/cv.h>
#include <opencv/cxcore.h>
#include "libavutil/avstring.h"
#include "libavutil/file.h"
#include "avfilter.h"

Go to the source code of this file.

Data Structures

struct  OCVContext
struct  SmoothContext
struct  DilateContext
struct  OCVFilterEntry

Functions

static void fill_iplimage_from_picref (IplImage *img, const AVFilterBufferRef *picref, enum PixelFormat pixfmt)
static void fill_picref_from_iplimage (AVFilterBufferRef *picref, const IplImage *img, enum PixelFormat pixfmt)
static int query_formats (AVFilterContext *ctx)
static void null_draw_slice (AVFilterLink *link, int y, int h, int slice_dir)
static av_cold int smooth_init (AVFilterContext *ctx, const char *args, void *opaque)
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, void *opaque)
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, const char *args, void *opaque)
static av_cold void uninit (AVFilterContext *ctx)
static void end_frame (AVFilterLink *inlink)

Variables

static OCVFilterEntry ocv_filter_entries []
AVFilter avfilter_vf_ocv

Detailed Description

libopencv wrapper functions

Definition in file vf_libopencv.c.

Function Documentation

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

Definition at line 287 of file vf_libopencv.c.

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

Definition at line 250 of file vf_libopencv.c.

static av_cold void dilate_uninit ( AVFilterContext *  ctx)
static

Definition at line 279 of file vf_libopencv.c.

static void end_frame ( AVFilterLink *  inlink)
static

Definition at line 352 of file vf_libopencv.c.

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

Definition at line 294 of file vf_libopencv.c.

static void fill_iplimage_from_picref ( IplImage *  img,
const AVFilterBufferRef *  picref,
enum PixelFormat  pixfmt 
)
static

Definition at line 34 of file vf_libopencv.c.

Referenced by end_frame().

static void fill_picref_from_iplimage ( AVFilterBufferRef *  picref,
const IplImage *  img,
enum PixelFormat  pixfmt 
)
static

Definition at line 52 of file vf_libopencv.c.

Referenced by end_frame().

static av_cold int init ( AVFilterContext *  ctx,
const char *  args,
void *  opaque 
)
static

Definition at line 315 of file vf_libopencv.c.

static void null_draw_slice ( AVFilterLink *  link,
int  y,
int  h,
int  slice_dir 
)
static

Definition at line 68 of file vf_libopencv.c.

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

Definition at line 201 of file vf_libopencv.c.

Referenced by dilate_init().

static int query_formats ( AVFilterContext *  ctx)
static

Definition at line 58 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 134 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 127 of file vf_libopencv.c.

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

Definition at line 84 of file vf_libopencv.c.

static av_cold void uninit ( AVFilterContext *  ctx)
static

Definition at line 342 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),
.query_formats = query_formats,
.init = init,
.uninit = uninit,
.inputs = (AVFilterPad[]) {{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO,
.draw_slice = null_draw_slice,
.end_frame = end_frame,
.min_perms = AV_PERM_READ },
{ .name = NULL}},
.outputs = (AVFilterPad[]) {{ .name = "default",
.type = AVMEDIA_TYPE_VIDEO, },
{ .name = NULL}},
}

Definition at line 372 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 309 of file vf_libopencv.c.