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      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 #ifndef  _IH264D_UTILS_H_
     21 #define  _IH264D_UTILS_H_
     22 /*!
     23 **************************************************************************
     24 * \file ih264d_utils.h
     25 *
     26 * \brief
     27 *    Contains declaration of routines
     28 *    that handle of start and end of pic processing
     29 *
     30 * \date
     31 *    19/12/2002
     32 *
     33 * \author  AI
     34 **************************************************************************
     35 */
     36 #include "ih264d_defs.h"
     37 #include "ih264_typedefs.h"
     38 #include "ih264_macros.h"
     39 #include "ih264_platform_macros.h"
     40 #include "ih264d_structs.h"
     41 #include "ih264d_parse_cavlc.h"
     42 
     43 #define PS_DEC_ALIGNED_FREE(ps_dec, y) \
     44 if(y) {ps_dec->pf_aligned_free(ps_dec->pv_mem_ctxt, ((void *)y)); (y) = NULL;}
     45 void pad_frm_buff_vert(dec_struct_t *ps_dec);
     46 
     47 UWORD8 ih264d_is_end_of_pic(UWORD16 u2_frame_num,
     48                             UWORD8 u1_nal_ref_idc,
     49                             pocstruct_t *ps_cur_poc,
     50                             pocstruct_t *ps_prev_poc,
     51                             dec_slice_params_t * ps_prev_slice,
     52                             UWORD8 u1_pic_order_cnt_type,
     53                             UWORD8 u1_nal_unit_type,
     54                             UWORD32 u4_idr_pic_id,
     55                             UWORD8 u1_field_pic_flag,
     56                             UWORD8 u1_bottom_field_flag);
     57 
     58 WORD32 ih264d_end_of_pic_processing(dec_struct_t * ps_dec);
     59 
     60 WORD32 ih264d_init_pic(dec_struct_t *ps_dec,
     61                        UWORD16 u2_frame_num,
     62                        WORD32 i4_poc,
     63                        dec_pic_params_t * ps_pps);
     64 
     65 WORD32 ih264d_end_of_pic_processing(dec_struct_t * ps_dec);
     66 WORD32 ih264d_decode_pic_order_cnt(UWORD8 u1_is_idr_slice,
     67                                    UWORD32 u2_frame_num,
     68                                    pocstruct_t *ps_prev_poc,
     69                                    pocstruct_t *ps_cur_poc,
     70                                    dec_slice_params_t *ps_cur_slice,
     71                                    dec_pic_params_t * ps_pps,
     72                                    UWORD8 u1_nal_ref_idc,
     73                                    UWORD8 u1_bottom_field_flag,
     74                                    UWORD8 u1_field_pic_flag,
     75                                    WORD32 *pi4_poc);
     76 void ih264d_release_display_bufs(dec_struct_t *ps_dec);
     77 WORD32 ih264d_assign_display_seq(dec_struct_t *ps_dec);
     78 void ih264d_assign_pic_num(dec_struct_t *ps_dec);
     79 
     80 void ih264d_unpack_coeff4x4_dc_4x4blk(tu_sblk4x4_coeff_data_t *ps_tu_4x4,
     81                                       WORD16 *pi2_out_coeff_data,
     82                                       UWORD8 *pu1_inv_scan);
     83 
     84 WORD32 ih264d_update_qp(dec_struct_t * ps_dec, const WORD8 i1_qp);
     85 WORD32 ih264d_decode_gaps_in_frame_num(dec_struct_t *ps_dec,
     86                                        UWORD16 u2_frame_num);
     87 
     88 WORD32 ih264d_get_next_display_field(dec_struct_t * ps_dec,
     89                                   ivd_out_bufdesc_t *ps_out_buffer,
     90                                   ivd_get_display_frame_op_t *pv_disp_op);
     91 
     92 void ih264d_release_display_field(dec_struct_t *ps_dec,
     93                                   ivd_get_display_frame_op_t *pv_disp_op);
     94 void ih264d_close_video_decoder(iv_obj_t *iv_obj_t);
     95 WORD32 ih264d_get_dpb_size(dec_seq_params_t *ps_seq);
     96 WORD32 ih264d_get_next_nal_unit(UWORD8 *pu1_buf,
     97                                 UWORD32 u4_cur_pos,
     98                                 UWORD32 u4_max_ofst,
     99                                 UWORD32 *pu4_length_of_start_code);
    100 
    101 WORD16 ih264d_free_dynamic_bufs(dec_struct_t * ps_dec);
    102 #endif /* _IH264D_UTILS_H_ */
    103