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

Macros
#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	ff_vf_info_perspective

Macro Definition Documentation

#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().

#define COEFF_BITS   11

Definition at line 43 of file vf_perspective.c.

Referenced by config(), and resampleCubic().

Function Documentation

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 double getCoeff ( double  d )

static

Definition at line 90 of file vf_perspective.c.

Referenced by config().

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.

Referenced by vf_open().

static void uninit ( struct vf_instance *  vf )

static

Definition at line 134 of file vf_perspective.c.

Referenced by vf_open().

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  )

inlinestatic

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  )

inlinestatic

Definition at line 205 of file vf_perspective.c.

Referenced by put_image().

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

static

Definition at line 263 of file vf_perspective.c.

Referenced by vf_open().

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

static

Definition at line 294 of file vf_perspective.c.

Referenced by vf_open().

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 ff_vf_info_perspective

Initial value:

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

Definition at line 336 of file vf_perspective.c.