1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/media/libvpx/vp9/decoder/vp9_treereader.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,30 @@
1.4 +/*
1.5 + * Copyright (c) 2010 The WebM project authors. All Rights Reserved.
1.6 + *
1.7 + * Use of this source code is governed by a BSD-style license
1.8 + * that can be found in the LICENSE file in the root of the source
1.9 + * tree. An additional intellectual property rights grant can be found
1.10 + * in the file PATENTS. All contributing project authors may
1.11 + * be found in the AUTHORS file in the root of the source tree.
1.12 + */
1.13 +
1.14 +
1.15 +#ifndef VP9_DECODER_VP9_TREEREADER_H_
1.16 +#define VP9_DECODER_VP9_TREEREADER_H_
1.17 +
1.18 +#include "vp9/common/vp9_treecoder.h"
1.19 +#include "vp9/decoder/vp9_dboolhuff.h"
1.20 +
1.21 +// Intent of tree data structure is to make decoding trivial.
1.22 +static int treed_read(vp9_reader *const r, /* !!! must return a 0 or 1 !!! */
1.23 + vp9_tree t,
1.24 + const vp9_prob *const p) {
1.25 + register vp9_tree_index i = 0;
1.26 +
1.27 + while ((i = t[ i + vp9_read(r, p[i >> 1])]) > 0)
1.28 + continue;
1.29 +
1.30 + return -i;
1.31 +}
1.32 +
1.33 +#endif // VP9_DECODER_VP9_TREEREADER_H_
