| // Copyright 2015 Google Inc. All Rights Reserved. |
| // |
| // Use of this source code is governed by a BSD-style license |
| // that can be found in the COPYING 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. |
| // ----------------------------------------------------------------------------- |
| // |
| // Definitions and macros common to encoding and decoding |
| // |
| // Author: Skal (pascal.massimino@gmail.com) |
| |
| #ifndef WEBP_DEC_COMMON_DEC_H_ |
| #define WEBP_DEC_COMMON_DEC_H_ |
| |
| // intra prediction modes |
| enum { B_DC_PRED = 0, // 4x4 modes |
| B_TM_PRED = 1, |
| B_VE_PRED = 2, |
| B_HE_PRED = 3, |
| B_RD_PRED = 4, |
| B_VR_PRED = 5, |
| B_LD_PRED = 6, |
| B_VL_PRED = 7, |
| B_HD_PRED = 8, |
| B_HU_PRED = 9, |
| NUM_BMODES = B_HU_PRED + 1 - B_DC_PRED, // = 10 |
| |
| // Luma16 or UV modes |
| DC_PRED = B_DC_PRED, V_PRED = B_VE_PRED, |
| H_PRED = B_HE_PRED, TM_PRED = B_TM_PRED, |
| B_PRED = NUM_BMODES, // refined I4x4 mode |
| NUM_PRED_MODES = 4, |
| |
| // special modes |
| B_DC_PRED_NOTOP = 4, |
| B_DC_PRED_NOLEFT = 5, |
| B_DC_PRED_NOTOPLEFT = 6, |
| NUM_B_DC_MODES = 7 }; |
| |
| enum { MB_FEATURE_TREE_PROBS = 3, |
| NUM_MB_SEGMENTS = 4, |
| NUM_REF_LF_DELTAS = 4, |
| NUM_MODE_LF_DELTAS = 4, // I4x4, ZERO, *, SPLIT |
| MAX_NUM_PARTITIONS = 8, |
| // Probabilities |
| NUM_TYPES = 4, // 0: i16-AC, 1: i16-DC, 2:chroma-AC, 3:i4-AC |
| NUM_BANDS = 8, |
| NUM_CTX = 3, |
| NUM_PROBAS = 11 |
| }; |
| |
| #endif // WEBP_DEC_COMMON_DEC_H_ |
