libavfilter/libmpcodecs/vf_noise.c File Reference

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

Go to the source code of this file.

Data Structures
struct	FilterParam
struct	vf_priv_s
	Stores persistant variables. More...
Defines
#define	MAX_NOISE   4096
#define	MAX_SHIFT   1024
#define	MAX_RES   (MAX_NOISE-MAX_SHIFT)
#define	RAND_N(range)   ((int) ((double)range*rand()/(RAND_MAX+1.0)))
Functions
static void	lineNoise_C (uint8_t *dst, uint8_t *src, int8_t *noise, int len, int shift)
static void	lineNoiseAvg_C (uint8_t *dst, uint8_t *src, int len, int8_t **shift)
static int8_t *	initNoise (FilterParam *fp)
static void	lineNoise_MMX (uint8_t *dst, uint8_t *src, int8_t *noise, int len, int shift)
static void	lineNoiseAvg_MMX (uint8_t *dst, uint8_t *src, int len, int8_t **shift)
static void	noise (uint8_t *dst, uint8_t *src, int dstStride, int srcStride, int width, int height, FilterParam *fp)
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	get_image (struct vf_instance *vf, mp_image_t *mpi)
static int	put_image (struct vf_instance *vf, mp_image_t *mpi, double pts)
static void	uninit (struct vf_instance *vf)
static int	query_format (struct vf_instance *vf, unsigned int fmt)
static void	parse (FilterParam *fp, char *args)
static int	vf_open (vf_instance_t *vf, char *args)
Variables
static void(*	lineNoise )(uint8_t *dst, uint8_t *src, int8_t *noise, int len, int shift) = lineNoise_C
static void(*	lineNoiseAvg )(uint8_t *dst, uint8_t *src, int len, int8_t **shift) = lineNoiseAvg_C
static int	nonTempRandShift_init
static int	nonTempRandShift [MAX_RES]
static int	patt [4]
static const unsigned int	fmt_list []
const vf_info_t	vf_info_noise

---

Define Documentation

#define MAX_NOISE   4096

Definition at line 41 of file vf_noise.c.

Referenced by initNoise().

#define MAX_RES   (MAX_NOISE-MAX_SHIFT)

Definition at line 43 of file vf_noise.c.

Referenced by initNoise().

#define MAX_SHIFT   1024

Definition at line 42 of file vf_noise.c.

Referenced by initNoise(), and noise().

#define RAND_N

(

range

)

((int) ((double)range*rand()/(RAND_MAX+1.0)))

Definition at line 78 of file vf_noise.c.

Referenced by initNoise().

---

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 316 of file vf_noise.c.

static void get_image	(	struct vf_instance *	vf,
		mp_image_t *	mpi
	)			[static]

Definition at line 323 of file vf_noise.c.

static int8_t* initNoise

(

FilterParam *

fp

)

[static]

Definition at line 79 of file vf_noise.c.

Referenced by parse().

static void lineNoise_C	(	uint8_t *	dst,
		uint8_t *	src,
		int8_t *	noise,
		int	len,
		int	shift
	)			[inline, static]

Definition at line 206 of file vf_noise.c.

Referenced by lineNoise_MMX().

static void lineNoise_MMX	(	uint8_t *	dst,
		uint8_t *	src,
		int8_t *	noise,
		int	len,
		int	shift
	)			[inline, static]

Definition at line 150 of file vf_noise.c.

Referenced by vf_open().

static void lineNoiseAvg_C	(	uint8_t *	dst,
		uint8_t *	src,
		int	len,
		int8_t **	shift
	)			[inline, static]

Definition at line 262 of file vf_noise.c.

Referenced by lineNoiseAvg_MMX().

static void lineNoiseAvg_MMX	(	uint8_t *	dst,
		uint8_t *	src,
		int	len,
		int8_t **	shift
	)			[inline, static]

Definition at line 221 of file vf_noise.c.

Referenced by vf_open().

static void noise	(	uint8_t *	dst,
		uint8_t *	src,
		int	dstStride,
		int	srcStride,
		int	width,
		int	height,
		FilterParam *	fp
	)			[static]

Definition at line 275 of file vf_noise.c.

static void parse	(	FilterParam *	fp,
		char *	args
	)			[static]

Definition at line 396 of file vf_noise.c.

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

Definition at line 341 of file vf_noise.c.

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

Definition at line 385 of file vf_noise.c.

static void uninit

(

struct vf_instance *

vf

)

[static]

Definition at line 370 of file vf_noise.c.

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

Definition at line 427 of file vf_noise.c.

---

Variable Documentation

const unsigned int fmt_list[] [static]

Initial value:

{
    IMGFMT_YV12,
    IMGFMT_I420,
    IMGFMT_IYUV,
    0
}

Definition at line 420 of file vf_noise.c.

void(* lineNoise)(uint8_t *dst, uint8_t *src, int8_t *noise, int len, int shift) = lineNoise_C [static]

Referenced by noise(), and vf_open().

void(* lineNoiseAvg)(uint8_t *dst, uint8_t *src, int len, int8_t **shift) = lineNoiseAvg_C [static]

Referenced by noise(), and vf_open().

int nonTempRandShift[MAX_RES] [static]

Definition at line 72 of file vf_noise.c.

Referenced by initNoise(), and noise().

int nonTempRandShift_init [static]

Definition at line 71 of file vf_noise.c.

Referenced by initNoise().

int patt[4] [static]

Initial value:

 {
    -1,0,1,0
}

Definition at line 74 of file vf_noise.c.

Referenced by initNoise().

const vf_info_t vf_info_noise

Initial value:

 {
    "noise generator",
    "noise",
    "Michael Niedermayer",
    "",
    vf_open,
    NULL
}

Definition at line 465 of file vf_noise.c.