common_dec.h - mozsearch

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// 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_