resize.c

#include <Epeg.h>

#include "fastphoto.h"

void
resize (fastphoto_t * params)
{
  Epeg_Image *im;
  int x, y, w, h;

  im = epeg_file_open(params->infile);

  epeg_size_get (im, &w, &h);

  x = params->x;
  y = params->y;

  if (x == 0 && y == 0) {
    x = w;
    y = h;
  } else if (x == 0) {
    x = w*y/h;
  } else if (y == 0) {
    y = h*x/w;
  }
  epeg_decode_size_set(im, x, y);

  epeg_file_output_set(im, params->outfile);
  epeg_encode(im);
  epeg_close(im);
}