1/* 2 * Copyright (c) 2011 The WebM project authors. All Rights Reserved. 3 * 4 * Use of this source code is governed by a BSD-style license 5 * that can be found in the LICENSE file in the root of the source 6 * tree. An additional intellectual property rights grant can be found 7 * in the file PATENTS. All contributing project authors may 8 * be found in the AUTHORS file in the root of the source tree. 9 */ 10 11#ifndef VP8_DECODER_EC_TYPES_H_ 12#define VP8_DECODER_EC_TYPES_H_ 13 14#ifdef __cplusplus 15extern "C" { 16#endif 17 18#define MAX_OVERLAPS 16 19 20 21/* The area (pixel area in Q6) the block pointed to by bmi overlaps 22 * another block with. 23 */ 24typedef struct 25{ 26 int overlap; 27 union b_mode_info *bmi; 28} OVERLAP_NODE; 29 30/* Structure to keep track of overlapping blocks on a block level. */ 31typedef struct 32{ 33 /* TODO(holmer): This array should be exchanged for a linked list */ 34 OVERLAP_NODE overlaps[MAX_OVERLAPS]; 35} B_OVERLAP; 36 37/* Structure used to hold all the overlaps of a macroblock. The overlaps of a 38 * macroblock is further divided into block overlaps. 39 */ 40typedef struct 41{ 42 B_OVERLAP overlaps[16]; 43} MB_OVERLAP; 44 45/* Structure for keeping track of motion vectors and which reference frame they 46 * refer to. Used for motion vector interpolation. 47 */ 48typedef struct 49{ 50 MV mv; 51 MV_REFERENCE_FRAME ref_frame; 52} EC_BLOCK; 53 54#ifdef __cplusplus 55} // extern "C" 56#endif 57 58#endif // VP8_DECODER_EC_TYPES_H_ 59