libvpx: Pull from upstream

source/libvpx/webmenc.h

 /*
  *  Copyright (c) 2013 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 WEBMENC_H_
@@ skipping 24 matching lines @@
   STEREO_FORMAT_LEFT_RIGHT = 1,
   STEREO_FORMAT_BOTTOM_TOP = 2,
   STEREO_FORMAT_TOP_BOTTOM = 3,
   STEREO_FORMAT_RIGHT_LEFT = 11
 } stereo_format_t;
 
 void write_webm_file_header(struct EbmlGlobal *glob,
                             const vpx_codec_enc_cfg_t *cfg,
                             const struct vpx_rational *fps,
                             stereo_format_t stereo_fmt,
-                            unsigned int fourcc);
+                            unsigned int fourcc,
+                            const struct VpxRational *par);
 
 void write_webm_block(struct EbmlGlobal *glob,
                       const vpx_codec_enc_cfg_t *cfg,
                       const vpx_codec_cx_pkt_t *pkt);
 
 void write_webm_file_footer(struct EbmlGlobal *glob);
 
 #ifdef __cplusplus
 }  // extern "C"
 #endif
 
 #endif  // WEBMENC_H_