1/******************************************************************************
2 *
3 * Copyright (C) 2015 The Android Open Source Project
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 *****************************************************************************
18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
19*/
20
21#ifndef _IH264D_MVPRED_H_
22#define _IH264D_MVPRED_H_
23
24/**
25**************************************************************************
26* \file ih264d_mvpred.h
27*
28* \brief
29*    This file contains declarations of functions specific to decoding
30*    Motion vector.
31*
32* Detailed_description
33*
34* \date
35*    10-12-2002
36*
37* \author  Arvind Raman
38**************************************************************************
39*/
40#include "ih264d_structs.h"
41#include "ih264d_defs.h"
42//#include "structs.h"
43
44/** Reference number that is not valid */
45#define OUT_OF_RANGE_REF  -1
46
47#define ONE_TO_ONE    0
48#define FRM_TO_FLD    1
49#define FLD_TO_FRM    2
50
51/**
52**************************************************************************
53*   \brief   POSITION_IN_MVBANK
54*
55*   a: Pointer to the top left subMb of the MB in the MV bank array
56*   b: Horiz posn in terms of subMbs
57*   c: Vert posn in terms of subMbs
58*   d: subMb number
59**************************************************************************
60*/
61#define POSITION_IN_MVBANK(a, b, c, d) (a) + (c) * (d) + (b)
62
63
64
65/**
66**************************************************************************
67*   \brief   col4x4_t
68*
69*   Container to return the information related to the co-located 4x4
70*   sub-macroblock.
71**************************************************************************
72*/
73typedef struct
74{
75  mv_pred_t *ps_mv;     /** Ptr to the Mv bank */
76  UWORD16 u2_mb_addr_col;       /** Addr of the co-located MB */
77  WORD16 i2_mv[2];      /** Mv of the colocated MB */
78  WORD8 i1_ref_idx_col;     /** Ref idx of the co-located picture */
79  UWORD8 u1_col_pic;        /** Idx of the colocated pic */
80  UWORD8 u1_yM;     /** "y" coord of the colocated MB addr */
81  UWORD8 u1_vert_mv_scale;      /** as defined in sec 8.4.1.2.1 */
82} col4x4_t;
83
84
85
86
87
88void ih264d_update_nnz_for_skipmb(dec_struct_t * ps_dec,
89                                  dec_mb_info_t * ps_cur_mb_info,
90                                  UWORD8 u1_entrpy);
91
92void ih264d_get_motion_vector_predictor(mv_pred_t * ps_result,
93                                        mv_pred_t **ps_mv_pred,
94                                        UWORD8 u1_ref_idx,
95                                        UWORD8 u1_B,
96                                        const UWORD8 *pu1_mv_pred_condition);
97void ih264d_mbaff_mv_pred(mv_pred_t **ps_mv_pred,
98                          UWORD8 u1_sub_mb_num,
99                          mv_pred_t *ps_mv_nmb,
100                          mv_pred_t *ps_mv_ntop,
101                          dec_struct_t *ps_dec,
102                          UWORD8 uc_mb_part_width,
103                          dec_mb_info_t *ps_cur_mb_info,
104                          UWORD8* pu0_scale);
105void ih264d_non_mbaff_mv_pred(mv_pred_t **ps_mv_pred,
106                              UWORD8 u1_sub_mb_num,
107                              mv_pred_t *ps_mv_nmb,
108                              mv_pred_t *ps_mv_ntop,
109                              dec_struct_t *ps_dec,
110                              UWORD8 uc_mb_part_width,
111                              dec_mb_info_t *ps_cur_mb_info);
112UWORD8 ih264d_mvpred_nonmbaff(dec_struct_t *ps_dec,
113                              dec_mb_info_t *ps_cur_mb_info,
114                              mv_pred_t *ps_mv_nmb,
115                              mv_pred_t *ps_mv_ntop,
116                              mv_pred_t *ps_mv_final_pred,
117                              UWORD8 u1_sub_mb_num,
118                              UWORD8 uc_mb_part_width,
119                              UWORD8 u1_lx_start,
120                              UWORD8 u1_lxend,
121                              UWORD8 u1_mb_mc_mode);
122
123UWORD8 ih264d_mvpred_nonmbaffB(dec_struct_t *ps_dec,
124                               dec_mb_info_t *ps_cur_mb_info,
125                               mv_pred_t *ps_mv_nmb,
126                               mv_pred_t *ps_mv_ntop,
127                               mv_pred_t *ps_mv_final_pred,
128                               UWORD8 u1_sub_mb_num,
129                               UWORD8 uc_mb_part_width,
130                               UWORD8 u1_lx_start,
131                               UWORD8 u1_lxend,
132                               UWORD8 u1_mb_mc_mode);
133
134UWORD8 ih264d_mvpred_mbaff(dec_struct_t *ps_dec,
135                           dec_mb_info_t *ps_cur_mb_info,
136                           mv_pred_t *ps_mv_nmb,
137                           mv_pred_t *ps_mv_ntop,
138                           mv_pred_t *ps_mv_final_pred,
139                           UWORD8 u1_sub_mb_num,
140                           UWORD8 uc_mb_part_width,
141                           UWORD8 u1_lx_start,
142                           UWORD8 u1_lxend,
143                           UWORD8 u1_mb_mc_mode);
144
145void ih264d_rep_mv_colz(dec_struct_t *ps_dec,
146                        mv_pred_t *ps_mv_pred_src,
147                        mv_pred_t *ps_mv_pred_dst,
148                        UWORD8 u1_sub_mb_num,
149                        UWORD8 u1_colz,
150                        UWORD8 u1_ht,
151                        UWORD8 u1_wd);
152
153#endif  /* _IH264D_MVPRED_H_ */
154