resize_util.c

/*
 *  Copyright (c) 2014 The WebM project authors. All Rights Reserved.
 *
 *  Use of this source code is governed by a BSD-style license
 *  that can be found in the LICENSE file in the root of the source
 *  tree. An additional intellectual property rights grant can be found
 *  in the file PATENTS.  All contributing project authors may
 *  be found in the AUTHORS file in the root of the source tree.
 */

#include <assert.h>
#include <limits.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include "./vp9/encoder/vp9_resize.h"

static void usage(char *progname) {
  printf("Usage:\n");
  printf("%s <input_yuv> <width>x<height> <target_width>x<target_height> ",
         progname);
  printf("<output_yuv> [<frames>]\n");
}

static int parse_dim(char *v, int *width, int *height) {
  char *x = strchr(v, 'x');
  if (x == NULL)
    x = strchr(v, 'X');
  if (x == NULL)
    return 0;
  *width = atoi(v);
  *height = atoi(&x[1]);
  if (*width <= 0 || *height <= 0)
    return 0;
  else
    return 1;
}

int main(int argc, char *argv[]) {
  char *fin, *fout;
  FILE *fpin, *fpout;
  uint8_t *inbuf, *outbuf;
  uint8_t *inbuf_u, *outbuf_u;
  uint8_t *inbuf_v, *outbuf_v;
  int f, frames;
  int width, height, target_width, target_height;

  if (argc < 5) {
    printf("Incorrect parameters:\n");
    usage(argv[0]);
    return 1;
  }

  fin = argv[1];
  fout = argv[4];
  if (!parse_dim(argv[2], &width, &height)) {
    printf("Incorrect parameters: %s\n", argv[2]);
    usage(argv[0]);
    return 1;
  }
  if (!parse_dim(argv[3], &target_width, &target_height)) {
    printf("Incorrect parameters: %s\n", argv[3]);
    usage(argv[0]);
    return 1;
  }

  fpin = fopen(fin, "rb");
  if (fpin == NULL) {