libvpx: Pull from upstream

source/libvpx/vp9/encoder/vp9_resize.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.
  */
 
@@ skipping 498 matching lines @@
                       int in_stride,
                       uint8_t *output,
                       int height2,
                       int width2,
                       int out_stride) {
   int i;
   uint8_t *intbuf = (uint8_t *)malloc(sizeof(uint8_t) * width2 * height);
   uint8_t *tmpbuf = (uint8_t *)malloc(sizeof(uint8_t) *
                                       (width < height ? height : width));
   uint8_t *arrbuf = (uint8_t *)malloc(sizeof(uint8_t) * (height + height2));
+  assert(width > 0);
+  assert(height > 0);
+  assert(width2 > 0);
+  assert(height2 > 0);
   for (i = 0; i < height; ++i)
     resize_multistep(input + in_stride * i, width,
                         intbuf + width2 * i, width2, tmpbuf);
   for (i = 0; i < width2; ++i) {
     fill_col_to_arr(intbuf + i, width2, height, arrbuf);
     resize_multistep(arrbuf, height, arrbuf + height, height2, tmpbuf);
     fill_arr_to_col(output + i, out_stride, height2, arrbuf + height);
   }
   free(intbuf);
   free(tmpbuf);
@@ skipping 382 matching lines @@
                                 uint8_t *ou, uint8_t *ov, int ouv_stride,
                                 int oheight, int owidth, int bd) {
   vp9_highbd_resize_plane(y, height, width, y_stride,
                           oy, oheight, owidth, oy_stride, bd);
   vp9_highbd_resize_plane(u, height, width, uv_stride,
                           ou, oheight, owidth, ouv_stride, bd);
   vp9_highbd_resize_plane(v, height, width, uv_stride,
                           ov, oheight, owidth, ouv_stride, bd);
 }
 #endif  // CONFIG_VP9_HIGHBITDEPTH