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),
.init = init,
.inputs = (AVFilterPad[]) {{ .name = "default",
.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}},
}
#define AV_PERM_READ
can read from the buffer
Definition: avfilter.h:81
A filter pad used for either input or output.
Definition: avfilter.h:312
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:191
NULL
Definition: eval.c:50
static void end_frame(AVFilterLink *inlink)
Definition: vf_libopencv.c:352
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_libopencv.c:342
static int query_formats(AVFilterContext *ctx)
Definition: vf_libopencv.c:58
static av_cold int init(AVFilterContext *ctx, const char *args, void *opaque)
Definition: vf_libopencv.c:315
static void null_draw_slice(AVFilterLink *link, int y, int h, int slice_dir)
Definition: vf_libopencv.c:68

Definition at line 372 of file vf_libopencv.c.

OCVFilterEntry ocv_filter_entries[]
static
Initial value:
= {
}
static void smooth_end_frame_filter(AVFilterContext *ctx, IplImage *inimg, IplImage *outimg)
Definition: vf_libopencv.c:127
static av_cold void dilate_uninit(AVFilterContext *ctx)
Definition: vf_libopencv.c:279
static void dilate_end_frame_filter(AVFilterContext *ctx, IplImage *inimg, IplImage *outimg)
Definition: vf_libopencv.c:287
static av_cold int dilate_init(AVFilterContext *ctx, const char *args, void *opaque)
Definition: vf_libopencv.c:250
NULL
Definition: eval.c:50
static av_cold int smooth_init(AVFilterContext *ctx, const char *args, void *opaque)
Definition: vf_libopencv.c:84
static void erode_end_frame_filter(AVFilterContext *ctx, IplImage *inimg, IplImage *outimg)
Definition: vf_libopencv.c:294

Definition at line 309 of file vf_libopencv.c.