blob: cca017de420c8e5ab49d16cac0ff8b1247504498 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
/*
* 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_TREEREADER_H_
#define VP9_DECODER_VP9_TREEREADER_H_
#include "vp9/common/vp9_treecoder.h"
#include "vp9/decoder/vp9_dboolhuff.h"
typedef BOOL_DECODER vp9_reader;
#define vp9_read decode_bool
#define vp9_read_literal decode_value
#define vp9_read_bit(R) vp9_read(R, vp9_prob_half)
/* Intent of tree data structure is to make decoding trivial. */
static int treed_read(vp9_reader *const r, /* !!! must return a 0 or 1 !!! */
vp9_tree t,
const vp9_prob *const p) {
register vp9_tree_index i = 0;
while ((i = t[ i + vp9_read(r, p[i >> 1])]) > 0);
return -i;
}
#endif // VP9_DECODER_VP9_TREEREADER_H_
|
