libavfilter/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    = (const AVFilterPad[]) {{ .name       = "default",
                                    .type             = AVMEDIA_TYPE_VIDEO,
                                    .draw_slice       = null_draw_slice,
                                    .end_frame        = end_frame,
                                    .min_perms        = AV_PERM_READ },
                                  { .name = NULL}},

    .outputs   = (const 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.