libvpx: Pull from upstream

source/libvpx/tools_common.h

 /*
  *  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.
  */
 #ifndef TOOLS_COMMON_H_
@@ skipping 71 matching lines @@
 };
 
 struct VpxInputContext {
   const char *filename;
   FILE *file;
   int64_t length;
   struct FileTypeDetectionBuffer detect;
   enum VideoFileType file_type;
   uint32_t width;
   uint32_t height;
+  struct VpxRational pixel_aspect_ratio;
   vpx_img_fmt_t fmt;
   vpx_bit_depth_t bit_depth;
   int only_i420;
   uint32_t fourcc;
   struct VpxRational framerate;
 #if CONFIG_ENCODERS
   y4m_input y4m;
 #endif
 };
 
@@ skipping 51 matching lines @@
 void vpx_img_upshift(vpx_image_t *dst, vpx_image_t *src, int input_shift);
 void vpx_img_downshift(vpx_image_t *dst, vpx_image_t *src, int down_shift);
 void vpx_img_truncate_16_to_8(vpx_image_t *dst, vpx_image_t *src);
 #endif
 
 #ifdef __cplusplus
 }  /* extern "C" */
 #endif
 
 #endif  // TOOLS_COMMON_H_