utils.c File Reference

#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Go to the source code of this file.

Macros
#define	SCALEBITS   8
#define	ONE_HALF   (1 << (SCALEBITS - 1))
#define	FIX(x)   ((int) ((x) * (1 << SCALEBITS) + 0.5))
#define	err_if(expr)
#define	DEFAULT_WIDTH   352
#define	DEFAULT_HEIGHT   288
#define	DEFAULT_NB_PICT   50

Functions
static void	rgb24_to_yuv420p (unsigned char *lum, unsigned char *cb, unsigned char *cr, const unsigned char *src, int width, int height)
static void	pgmyuv_save (const char *filename, int w, int h, const unsigned char *rgb_tab)
static void	put_pixel (int x, int y, int r, int g, int b)

Variables
static unsigned char *	rgb_tab
static int	width
static int	height
static int	wrap

Macro Definition Documentation

SCALEBITS

#define SCALEBITS   8

Definition at line 26 of file utils.c.

ONE_HALF

#define ONE_HALF   (1 << (SCALEBITS - 1))

Definition at line 27 of file utils.c.

FIX

#define FIX

(

x

)

((int) ((x) * (1 << SCALEBITS) + 0.5))

Definition at line 28 of file utils.c.

err_if

#define err_if

(

expr

)

Value:

    do {                                              \
    if (expr) {                                                        \
        fprintf(stderr, "%s\n", strerror(errno));                      \
        exit(1);                                                       \
    }                                                                  \
} while (0)

Definition at line 30 of file utils.c.

DEFAULT_WIDTH

#define DEFAULT_WIDTH   352

Definition at line 102 of file utils.c.

DEFAULT_HEIGHT

#define DEFAULT_HEIGHT   288

Definition at line 103 of file utils.c.

DEFAULT_NB_PICT

#define DEFAULT_NB_PICT   50

Definition at line 104 of file utils.c.

Function Documentation

rgb24_to_yuv420p()

static void rgb24_to_yuv420p ( unsigned char *  lum, unsigned char *  cb, unsigned char *  cr, const unsigned char *  src, int  width, int  height  )

static

Definition at line 37 of file utils.c.

Referenced by pgmyuv_save().

pgmyuv_save()

static void pgmyuv_save ( const char *  filename, int  w, int  h, const unsigned char *  rgb_tab  )

static

Definition at line 106 of file utils.c.

Referenced by main().

put_pixel()

static void put_pixel ( int  x, int  y, int  r, int  g, int  b  )

static

Definition at line 160 of file utils.c.

Variable Documentation

rgb_tab

unsigned char* rgb_tab

static

Definition at line 157 of file utils.c.

Referenced by main(), pgmyuv_save(), and put_pixel().

width

int width

static

Definition at line 158 of file utils.c.

Referenced by avcodec_align_dimensions(), avcodec_align_dimensions2(), ff_set_dimensions(), put_pixel(), and rgb24_to_yuv420p().

height

int height

static

Definition at line 158 of file utils.c.

Referenced by avcodec_align_dimensions(), avcodec_align_dimensions2(), ff_set_dimensions(), put_pixel(), rgb24_to_yuv420p(), and sws_normalizeVec().

wrap

int wrap

static

Definition at line 158 of file utils.c.

Referenced by put_pixel(), and rgb24_to_yuv420p().