libavfilter/libmpcodecs/vf_perspective.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>
#include <math.h>
#include "config.h"
#include "mp_msg.h"
#include "libavutil/mem.h"
#include "img_format.h"
#include "mp_image.h"
#include "vf.h"

Go to the source code of this file.

Data Structures
struct	vf_priv_s
	Stores persistant variables. More...
Defines
#define	SUB_PIXEL_BITS   8
#define	SUB_PIXELS   (1<<SUB_PIXEL_BITS)
#define	COEFF_BITS   11
Functions
static void	initPv (struct vf_priv_s *priv, int W, int H)
static double	getCoeff (double d)
static int	config (struct vf_instance *vf, int width, int height, int d_width, int d_height, unsigned int flags, unsigned int outfmt)
static void	uninit (struct vf_instance *vf)
static void	resampleCubic (uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, struct vf_priv_s *privParam, int xShift, int yShift)
static void	resampleLinear (uint8_t *dst, uint8_t *src, int w, int h, int dstStride, int srcStride, struct vf_priv_s *privParam, int xShift, int yShift)
static int	put_image (struct vf_instance *vf, mp_image_t *mpi, double pts)
static int	query_format (struct vf_instance *vf, unsigned int fmt)
static int	vf_open (vf_instance_t *vf, char *args)
Variables
const vf_info_t	vf_info_perspective

---

Define Documentation

#define COEFF_BITS   11

Definition at line 43 of file vf_perspective.c.

#define SUB_PIXEL_BITS   8

Definition at line 41 of file vf_perspective.c.

Referenced by resampleCubic(), and resampleLinear().

#define SUB_PIXELS   (1<<SUB_PIXEL_BITS)

Definition at line 42 of file vf_perspective.c.

Referenced by config(), initPv(), resampleCubic(), and resampleLinear().

---

Function Documentation

static int config	(	struct vf_instance *	vf,
		int	width,
		int	height,
		int	d_width,
		int	d_height,
		unsigned int	flags,
		unsigned int	outfmt
	)			[static]

Definition at line 107 of file vf_perspective.c.

static double getCoeff

(

double

d

)

[static]

Definition at line 90 of file vf_perspective.c.

Referenced by config().

static void initPv	(	struct vf_priv_s *	priv,
		int	W,
		int	H
	)			[static]

Definition at line 58 of file vf_perspective.c.

Referenced by config().

static int put_image	(	struct vf_instance *	vf,
		mp_image_t *	mpi,
		double	pts
	)			[static]

Definition at line 263 of file vf_perspective.c.

static int query_format	(	struct vf_instance *	vf,
		unsigned int	fmt
	)			[static]

Definition at line 294 of file vf_perspective.c.

static void resampleCubic	(	uint8_t *	dst,
		uint8_t *	src,
		int	w,
		int	h,
		int	dstStride,
		int	srcStride,
		struct vf_priv_s *	privParam,
		int	xShift,
		int	yShift
	)			[inline, static]

Definition at line 144 of file vf_perspective.c.

Referenced by put_image().

static void resampleLinear	(	uint8_t *	dst,
		uint8_t *	src,
		int	w,
		int	h,
		int	dstStride,
		int	srcStride,
		struct vf_priv_s *	privParam,
		int	xShift,
		int	yShift
	)			[inline, static]

Definition at line 205 of file vf_perspective.c.

Referenced by put_image().

static void uninit

(

struct vf_instance *

vf

)

[static]

Definition at line 134 of file vf_perspective.c.

static int vf_open	(	vf_instance_t *	vf,
		char *	args
	)			[static]

Definition at line 309 of file vf_perspective.c.

---

Variable Documentation

const vf_info_t vf_info_perspective

Initial value:

 {
    "perspective correcture",
    "perspective",
    "Michael Niedermayer",
    "",
    vf_open,
    NULL
}

Definition at line 336 of file vf_perspective.c.