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  ***************************************************************************
22  * \file ih264d_parse_mb_header.h
23  *
24  * \brief
25  *    This file contains context identifier decoding routines.
26  *
27  * \date
28  *    04/02/2003
29  *
30  * \author  NS
31  ***************************************************************************
32  */
33 #ifndef _IH264D_PARSE_MB_HEADER_H_
34 #define _IH264D_PARSE_MB_HEADER_H_
35 
36 #include "ih264_typedefs.h"
37 #include "ih264_macros.h"
38 #include "ih264_platform_macros.h"
39 #include "ih264d_structs.h"
40 #include "ih264d_cabac.h"
41 
42 WORD32 ih264d_read_intra_pred_modes_cabac(dec_struct_t * ps_dec,
43                                           UWORD8 * pu1_prev_intra4x4_pred_mode_flag,
44                                           UWORD8 * pu1_rem_intra4x4_pred_mode,
45                                           UWORD8 u1_tran_form8x8);
46 
47 UWORD32 ih264d_parse_mb_type_cabac(struct _DecStruct * ps_dec);
48 UWORD8 ih264d_parse_mb_type_intra_cabac(UWORD8 u1_inter,
49                                         struct _DecStruct * ps_dec);
50 
51 UWORD32 ih264d_parse_submb_type_cabac(const UWORD8 u1_slc_type_p,
52                                       decoding_envirnoment_t * ps_cab_env,
53                                       dec_bit_stream_t * ps_bitstrm,
54                                       bin_ctxt_model_t * ps_sub_mb_cxt);
55 WORD32 ih264d_parse_ref_idx_cabac(const UWORD8 u1_num_part,
56                                 const UWORD8 u1_b2,
57                                 const UWORD8 u1_max_ref_minus1,
58                                 const UWORD8 u1_mb_mode,
59                                 WORD8 * pi1_ref_idx,
60                                 WORD8 * const pi1_lft_cxt,
61                                 WORD8 * const pi1_top_cxt,
62                                 decoding_envirnoment_t * const ps_cab_env,
63                                 dec_bit_stream_t * const ps_bitstrm,
64                                 bin_ctxt_model_t * const ps_ref_cxt);
65 
66 WORD32 ih264d_parse_mb_qp_delta_cabac(struct _DecStruct * ps_dec,
67                                       WORD8 *pi1_mb_qp_delta);
68 WORD8 ih264d_parse_chroma_pred_mode_cabac(struct _DecStruct * ps_dec);
69 
70 UWORD32 ih264d_parse_ctx_cbp_cabac(struct _DecStruct * ps_dec);
71 
72 UWORD8 ih264d_parse_transform8x8flag_cabac(struct _DecStruct * ps_dec,
73                                            dec_mb_info_t * ps_cur_mb_info);
74 
75 void ih264d_get_mvd_cabac(UWORD8 u1_sub_mb,
76                           UWORD8 u1_b2,
77                           UWORD8 u1_part_wd,
78                           UWORD8 u1_part_ht,
79                           UWORD8 u1_dec_mvd,
80                           dec_struct_t *ps_dec,
81                           mv_pred_t *ps_mv);
82 
83 WORD16 ih264d_parse_mvd_cabac(dec_bit_stream_t * ps_bitstrm,
84                               decoding_envirnoment_t * ps_cab_env,
85                               bin_ctxt_model_t * p_ctxt_mvd,
86                               UWORD32 temp);
87 
88 #endif /* _IH264D_PARSE_MB_HEADER_H_ */
89