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 /* The area (pixel area in Q6) the block pointed to by bmi overlaps 21 * another block with. 22 */ 23 typedef struct { 24 int overlap; 25 union b_mode_info *bmi; 26 } OVERLAP_NODE; 27 28 /* Structure to keep track of overlapping blocks on a block level. */ 29 typedef struct { 30 /* TODO(holmer): This array should be exchanged for a linked list */ 31 OVERLAP_NODE overlaps[MAX_OVERLAPS]; 32 } B_OVERLAP; 33 34 /* Structure used to hold all the overlaps of a macroblock. The overlaps of a 35 * macroblock is further divided into block overlaps. 36 */ 37 typedef struct { B_OVERLAP overlaps[16]; } MB_OVERLAP; 38 39 /* Structure for keeping track of motion vectors and which reference frame they 40 * refer to. Used for motion vector interpolation. 41 */ 42 typedef struct { 43 MV mv; 44 MV_REFERENCE_FRAME ref_frame; 45 } EC_BLOCK; 46 47 #ifdef __cplusplus 48 } // extern "C" 49 #endif 50 51 #endif // VP8_DECODER_EC_TYPES_H_ 52
