libvpx: Pull from upstream

source/libvpx/vpx/vpx_decoder.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 VPX_VPX_DECODER_H_
@@ skipping 117 matching lines @@
    * \param[in]    flags   Bitfield of VPX_CODEC_USE_* flags
    * \param[in]    ver     ABI version number. Must be set to
    *                       VPX_DECODER_ABI_VERSION
    * \retval #VPX_CODEC_OK
    *     The decoder algorithm initialized.
    * \retval #VPX_CODEC_MEM_ERROR
    *     Memory allocation failed.
    */
   vpx_codec_err_t vpx_codec_dec_init_ver(vpx_codec_ctx_t      *ctx,
                                          vpx_codec_iface_t    *iface,
-                                         vpx_codec_dec_cfg_t  *cfg,
+                                         const vpx_codec_dec_cfg_t *cfg,
                                          vpx_codec_flags_t     flags,
                                          int                   ver);
 
   /*!\brief Convenience macro for vpx_codec_dec_init_ver()
    *
    * Ensures the ABI version parameter is properly set.
    */
 #define vpx_codec_dec_init(ctx, iface, cfg, flags) \
   vpx_codec_dec_init_ver(ctx, iface, cfg, flags, VPX_DECODER_ABI_VERSION)
 
@@ skipping 220 matching lines @@
       vpx_release_frame_buffer_cb_fn_t cb_release, void *cb_priv);
 
   /*!@} - end defgroup cap_external_frame_buffer */
 
   /*!@} - end defgroup decoder*/
 #ifdef __cplusplus
 }
 #endif
 #endif  // VPX_VPX_DECODER_H_