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Data Structures | Macros | 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/common.h"
#include "libavutil/file.h"
#include "libavutil/opt.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.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)   offsetof(OCVContext, x)
 
#define FLAGS   AV_OPT_FLAG_VIDEO_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 ff_vf_ocv
 

Detailed Description

libopencv wrapper functions

Definition in file vf_libopencv.c.

Macro Definition Documentation

◆ OFFSET

#define OFFSET (   x)    offsetof(OCVContext, x)

Definition at line 386 of file vf_libopencv.c.

◆ FLAGS

#define FLAGS   AV_OPT_FLAG_VIDEO_PARAM

Definition at line 387 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 37 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 55 of file vf_libopencv.c.

Referenced by filter_frame().

◆ query_formats()

static int query_formats ( AVFilterContext ctx)
static

Definition at line 61 of file vf_libopencv.c.

◆ smooth_init()

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

Definition at line 87 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 130 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 137 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 204 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 259 of file vf_libopencv.c.

◆ dilate_uninit()

static av_cold void dilate_uninit ( AVFilterContext ctx)
static

Definition at line 294 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 352 of file vf_libopencv.c.

◆ filter_frame()

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 361 of file vf_libopencv.c.

Variable Documentation

◆ ocv_filter_entries

OCVFilterEntry ocv_filter_entries[]
static
Initial value:
= {
}
static void smooth_end_frame_filter(AVFilterContext *ctx, IplImage *inimg, IplImage *outimg)
Definition: vf_libopencv.c:130
static av_cold void dilate_uninit(AVFilterContext *ctx)
Definition: vf_libopencv.c:294
static void dilate_end_frame_filter(AVFilterContext *ctx, IplImage *inimg, IplImage *outimg)
Definition: vf_libopencv.c:302
NULL
Definition: eval.c:55
static av_cold int dilate_init(AVFilterContext *ctx, const char *args)
Definition: vf_libopencv.c:259
static void erode_end_frame_filter(AVFilterContext *ctx, IplImage *inimg, IplImage *outimg)
Definition: vf_libopencv.c:309
static av_cold int smooth_init(AVFilterContext *ctx, const char *args)
Definition: vf_libopencv.c:87

Definition at line 324 of file vf_libopencv.c.

◆ options

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 },
}
#define FLAGS
Definition: vf_libopencv.c:387
#define OFFSET(x)
Definition: vf_libopencv.c:386
const char * name
Definition: qsvenc.c:44
NULL
Definition: eval.c:55

Definition at line 388 of file vf_libopencv.c.

◆ ocv_class

const AVClass ocv_class
static
Initial value:
= {
.class_name = "ocv",
.item_name = av_default_item_name,
.option = options,
}
LIBAVUTIL_VERSION_INT
Definition: eval.c:55
av_default_item_name
Definition: dnxhdenc.c:55
static const AVOption options[]
Definition: vf_libopencv.c:388

Definition at line 394 of file vf_libopencv.c.

◆ avfilter_vf_ocv_inputs

const AVFilterPad avfilter_vf_ocv_inputs[]
static
Initial value:
= {
{
.name = "default",
.filter_frame = filter_frame,
},
{ NULL }
}
static int filter_frame(AVFilterLink *inlink, AVFrame *in)
Definition: vf_libopencv.c:361
NULL
Definition: eval.c:55

Definition at line 401 of file vf_libopencv.c.

◆ avfilter_vf_ocv_outputs

const AVFilterPad avfilter_vf_ocv_outputs[]
static
Initial value:
= {
{
.name = "default",
},
{ NULL }
}
NULL
Definition: eval.c:55

Definition at line 410 of file vf_libopencv.c.

◆ ff_vf_ocv

AVFilter ff_vf_ocv
Initial value:
= {
.name = "ocv",
.description = NULL_IF_CONFIG_SMALL("Apply transform using libopencv."),
.priv_size = sizeof(OCVContext),
.priv_class = &ocv_class,
.init = init,
}
static const AVFilterPad outputs[]
Definition: af_ashowinfo.c:259
static av_cold int init(AVFilterContext *ctx)
Definition: vf_libopencv.c:330
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
Definition: internal.h:148
static const AVFilterPad avfilter_vf_ocv_outputs[]
Definition: vf_libopencv.c:410
static const AVClass ocv_class
Definition: vf_libopencv.c:394
static const AVFilterPad avfilter_vf_ocv_inputs[]
Definition: vf_libopencv.c:401
static av_cold void uninit(AVFilterContext *ctx)
Definition: vf_libopencv.c:352
static const AVFilterPad inputs[]
Definition: af_ashowinfo.c:248
static int query_formats(AVFilterContext *ctx)
Definition: vf_libopencv.c:61

Definition at line 418 of file vf_libopencv.c.