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 15 extern "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 */ 24 typedef 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. */ 31 typedef 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 */ 40 typedef 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 */ 48 typedef 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
