libvpx: Pull from upstream

source/libvpx/examples/simple_decoder.c

 /*
  *  Copyright (c) 2010 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 116 matching lines @@
 
   if (vpx_codec_dec_init(&codec, decoder->interface(), NULL, 0))
     die_codec(&codec, "Failed to initialize decoder.");
 
   while (vpx_video_reader_read_frame(reader)) {
     vpx_codec_iter_t iter = NULL;
     vpx_image_t *img = NULL;
     size_t frame_size = 0;
     const unsigned char *frame = vpx_video_reader_get_frame(reader,
                                                             &frame_size);
-    if (vpx_codec_decode(&codec, frame, frame_size, NULL, 0))
+    if (vpx_codec_decode(&codec, frame, (unsigned int)frame_size, NULL, 0))
       die_codec(&codec, "Failed to decode frame.");
 
     while ((img = vpx_codec_get_frame(&codec, &iter)) != NULL) {
       vpx_img_write(img, outfile);
       ++frame_cnt;
     }
   }
 
   printf("Processed %d frames.\n", frame_cnt);
   if (vpx_codec_destroy(&codec))
     die_codec(&codec, "Failed to destroy codec");
 
   printf("Play: ffplay -f rawvideo -pix_fmt yuv420p -s %dx%d %s\n",
          info->frame_width, info->frame_height, argv[2]);
 
   vpx_video_reader_close(reader);
 
   fclose(outfile);
 
   return EXIT_SUCCESS;
 }