tiny_psnr.c File Reference

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <assert.h>
#include "libavutil/intfloat.h"

Include dependency graph for tiny_psnr.c:

Go to the source code of this file.

Macros
#define	FFMIN(a, b)   ((a) > (b) ? (b) : (a))
#define	F   100
#define	SIZE   2048

Functions
static int64_t	log16 (uint64_t a)
static uint64_t	int_sqrt (uint64_t a)
static int16_t	get_s16l (uint8_t *p)
static float	get_f32l (uint8_t *p)
static int	run_psnr (FILE *f[2], int len, int shift, int skip_bytes)
int	main (int argc, char *argv[])

Variables
uint64_t	exp16_table [21]

Macro Definition Documentation

#define F   100

Definition at line 30 of file tiny_psnr.c.

Referenced by main(), and run_psnr().

#define FFMIN	(		a,
			b
	)		((a) > (b) ? (b) : (a))

Definition at line 29 of file tiny_psnr.c.

Referenced by run_psnr().

#define SIZE   2048

Definition at line 31 of file tiny_psnr.c.

Referenced by run_psnr().

Function Documentation

static float get_f32l ( uint8_t *  p )

static

Definition at line 118 of file tiny_psnr.c.

Referenced by run_psnr().

static int16_t get_s16l ( uint8_t *  p )

static

Definition at line 108 of file tiny_psnr.c.

Referenced by run_psnr().

static uint64_t int_sqrt ( uint64_t  a )

static

Definition at line 92 of file tiny_psnr.c.

Referenced by run_psnr().

static int64_t log16 ( uint64_t  a )

static

Definition at line 73 of file tiny_psnr.c.

Referenced by run_psnr().

int main	(	int	argc,
		char *	argv[]
	)

Definition at line 213 of file tiny_psnr.c.

static int run_psnr ( FILE *  f[2], int  len, int  shift, int  skip_bytes  )

static

Definition at line 125 of file tiny_psnr.c.

Referenced by main().

Variable Documentation

uint64_t exp16_table[21]

Initial value:

= {
           65537,
           65538,
           65540,
           65544,
           65552,
           65568,
           65600,
           65664,
           65793,
           66050,
           66568,
           67616,
           69763,
           74262,
           84150,
          108051,
          178145,
          484249,
         3578144,
       195360063,
    582360139072LL,
}

Definition at line 33 of file tiny_psnr.c.

Referenced by log16().