Update libvpx snapshot to v0.9.7-p1 (Cayuga).

source/libvpx/vpx/src/vpx_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 18 matching lines @@
     if (ver != VPX_DECODER_ABI_VERSION)
         res = VPX_CODEC_ABI_MISMATCH;
     else if (!ctx || !iface)
         res = VPX_CODEC_INVALID_PARAM;
     else if (iface->abi_version != VPX_CODEC_INTERNAL_ABI_VERSION)
         res = VPX_CODEC_ABI_MISMATCH;
     else if ((flags & VPX_CODEC_USE_XMA) && !(iface->caps & VPX_CODEC_CAP_XMA))
         res = VPX_CODEC_INCAPABLE;
     else if ((flags & VPX_CODEC_USE_POSTPROC) && !(iface->caps & VPX_CODEC_CAP_POSTPROC))
         res = VPX_CODEC_INCAPABLE;
+    else if ((flags & VPX_CODEC_USE_ERROR_CONCEALMENT) &&
+            !(iface->caps & VPX_CODEC_CAP_ERROR_CONCEALMENT))
+        res = VPX_CODEC_INCAPABLE;
+    else if ((flags & VPX_CODEC_USE_INPUT_PARTITION) &&
+            !(iface->caps & VPX_CODEC_CAP_INPUT_PARTITION))
+        res = VPX_CODEC_INCAPABLE;
     else if (!(iface->caps & VPX_CODEC_CAP_DECODER))
         res = VPX_CODEC_INCAPABLE;
     else
     {
         memset(ctx, 0, sizeof(*ctx));
         ctx->iface = iface;
         ctx->name = iface->name;
         ctx->priv = NULL;
         ctx->init_flags = flags;
         ctx->config.dec = cfg;
@@ skipping 183 matching lines @@
             /* Everything look ok, set the mmap in the decoder */
             res = ctx->iface->set_mmap(ctx, mmap);
 
             if (res)
                 break;
         }
     }
 
     return SAVE_STATUS(ctx, res);
 }