libvpx: Add VP9 decoder.

source/libvpx/vp9/decoder/vp9_detokenize.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 VP9_DECODER_VP9_DETOKENIZE_H_
+#define VP9_DECODER_VP9_DETOKENIZE_H_
+
+#include "vp9/decoder/vp9_onyxd_int.h"
+
+void vp9_reset_mb_tokens_context(MACROBLOCKD* const);
+
+int vp9_decode_coefs_4x4(VP9D_COMP *dx, MACROBLOCKD *xd,
+                         BOOL_DECODER* const bc,
+                         PLANE_TYPE type, int i);
+
+int vp9_decode_mb_tokens(VP9D_COMP* const, MACROBLOCKD* const,
+                         BOOL_DECODER* const);
+
+int vp9_decode_mb_tokens_4x4_uv(VP9D_COMP* const dx, MACROBLOCKD* const xd,
+                                BOOL_DECODER* const bc);
+
+#endif /* DETOKENIZE_H */