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