1 | // Copyright 2015 Google Inc. All Rights Reserved. |
2 | // |
3 | // Use of this source code is governed by a BSD-style license |
4 | // that can be found in the COPYING file in the root of the source |
5 | // tree. An additional intellectual property rights grant can be found |
6 | // in the file PATENTS. All contributing project authors may |
7 | // be found in the AUTHORS file in the root of the source tree. |
8 | // ----------------------------------------------------------------------------- |
9 | // |
10 | // Definitions and macros common to encoding and decoding |
11 | // |
12 | // Author: Skal (pascal.massimino@gmail.com) |
13 | |
14 | #ifndef WEBP_DEC_COMMON_DEC_H_ |
15 | #define WEBP_DEC_COMMON_DEC_H_ |
16 | |
17 | // intra prediction modes |
18 | enum { B_DC_PRED = 0, // 4x4 modes |
19 | B_TM_PRED = 1, |
20 | B_VE_PRED = 2, |
21 | B_HE_PRED = 3, |
22 | B_RD_PRED = 4, |
23 | B_VR_PRED = 5, |
24 | B_LD_PRED = 6, |
25 | B_VL_PRED = 7, |
26 | B_HD_PRED = 8, |
27 | B_HU_PRED = 9, |
28 | NUM_BMODES = B_HU_PRED + 1 - B_DC_PRED, // = 10 |
29 | |
30 | // Luma16 or UV modes |
31 | DC_PRED = B_DC_PRED, V_PRED = B_VE_PRED, |
32 | H_PRED = B_HE_PRED, TM_PRED = B_TM_PRED, |
33 | B_PRED = NUM_BMODES, // refined I4x4 mode |
34 | NUM_PRED_MODES = 4, |
35 | |
36 | // special modes |
37 | B_DC_PRED_NOTOP = 4, |
38 | B_DC_PRED_NOLEFT = 5, |
39 | B_DC_PRED_NOTOPLEFT = 6, |
40 | NUM_B_DC_MODES = 7 }; |
41 | |
42 | enum { MB_FEATURE_TREE_PROBS = 3, |
43 | NUM_MB_SEGMENTS = 4, |
44 | NUM_REF_LF_DELTAS = 4, |
45 | NUM_MODE_LF_DELTAS = 4, // I4x4, ZERO, *, SPLIT |
46 | MAX_NUM_PARTITIONS = 8, |
47 | // Probabilities |
48 | NUM_TYPES = 4, // 0: i16-AC, 1: i16-DC, 2:chroma-AC, 3:i4-AC |
49 | NUM_BANDS = 8, |
50 | NUM_CTX = 3, |
51 | NUM_PROBAS = 11 |
52 | }; |
53 | |
54 | #endif // WEBP_DEC_COMMON_DEC_H_ |
55 | |