libvpx: Pull from upstream

source/libvpx/examples/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"
+#include "../vp9/encoder/vp9_resize.h"
 
-static void usage(char *progname) {
+static const char *exec_name = NULL;
+
+static void usage() {
   printf("Usage:\n");
   printf("%s <input_yuv> <width>x<height> <target_width>x<target_height> ",
-         progname);
+         exec_name);
   printf("<output_yuv> [<frames>]\n");
 }
 
+void usage_exit() {
+  usage();
+  exit(EXIT_FAILURE);
+}
+
 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;
 
+  exec_name = argv[0];
+
   if (argc < 5) {
     printf("Incorrect parameters:\n");
-    usage(argv[0]);
+    usage();
     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]);
+    usage();
     return 1;
   }
   if (!parse_dim(argv[3], &target_width, &target_height)) {
     printf("Incorrect parameters: %s\n", argv[3]);
-    usage(argv[0]);
+    usage();
     return 1;
   }
 
   fpin = fopen(fin, "rb");
   if (fpin == NULL) {
     printf("Can't open file %s to read\n", fin);
-    usage(argv[0]);
+    usage();
     return 1;
   }
   fpout = fopen(fout, "wb");
   if (fpout == NULL) {
     printf("Can't open file %s to write\n", fout);
-    usage(argv[0]);
+    usage();
     return 1;
   }
   if (argc >= 6)
     frames = atoi(argv[5]);
   else
     frames = INT_MAX;
 
   printf("Input size:  %dx%d\n",
          width, height);
   printf("Target size: %dx%d, Frames: ",
@@ skipping 22 matching lines @@
     f++;
   }
   printf("%d frames processed\n", f);
   fclose(fpin);
   fclose(fpout);
 
   free(inbuf);
   free(outbuf);
   return 0;
 }