common_dec.h (1794B)
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 // Check that webp_csp_mode is within the bounds of WEBP_CSP_MODE. 55 int IsValidColorspace(int webp_csp_mode); 56 57 #endif // WEBP_DEC_COMMON_DEC_H_