/****************************************************************************** * * Copyright (C) 2022 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * ***************************************************************************** * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore */ /** ******************************************************************************* * @file * isvcd_parse_slice.c * * @brief * Contains routines that decodes a slice NAL unit * * @author * Kishore * * @remarks * None * ******************************************************************************* */ #include #include #include "ih264_typedefs.h" #include "ih264_macros.h" #include "ih264_platform_macros.h" #include "ithread.h" #include "isvcd_structs.h" #include "ih264d_debug.h" #include "ih264d_bitstrm.h" #include "ih264d_parse_mb_header.h" #include "ih264d_process_bslice.h" #include "ih264d_process_pslice.h" #include "ih264d_parse_cavlc.h" #include "ih264d_utils.h" #include "isvcd_utils.h" #include "ih264d_deblocking.h" #include "ih264d_defs.h" #include "ih264d_error_handler.h" #include "ih264d_tables.h" #include "ih264d_defs.h" #include "ih264d_mem_request.h" #include "ih264d_parse_islice.h" #include "ih264d_parse_slice.h" #include "ih264d_mvpred.h" #include "ih264d_mb_utils.h" #include "ih264d_defs.h" #include "ih264d_quant_scaling.h" #include "ih264d_inter_pred.h" #include "ih264d_sei.h" #include "ih264_error.h" #include "ih264_disp_mgr.h" #include "ih264_buf_mgr.h" #include "ih264d_thread_parse_decode.h" #include "ih264d_thread_compute_bs.h" #include "ih264d_dpb_manager.h" #include "ih264d_parse_islice.h" #include "isvcd_parse_slice.h" #include "isvcd_process_epslice.h" #include "isvcd_process_ebslice.h" #include "isvcd_thread_compute_bs.h" #include "isvcd_thread_parse_decode.h" #include "isvcd_deblocking.h" #define RET_LAST_SKIP 0x80000000 WORD32 check_app_out_buf_size(dec_struct_t *ps_dec); /*! ************************************************************************** * \if Function name : isvcd_verify_level \endif * * \brief * Initialize the Parameter required for all the slices for a picture * * \return : Nothing * ************************************************************************** */ WORD32 isvcd_verify_level(UWORD8 u1_level_idc) { switch(u1_level_idc) { case H264_LEVEL_1_0: case H264_LEVEL_1_1: case H264_LEVEL_1_2: case H264_LEVEL_1_3: case H264_LEVEL_2_0: case H264_LEVEL_2_1: case H264_LEVEL_2_2: case H264_LEVEL_3_0: case H264_LEVEL_3_1: case H264_LEVEL_3_2: case H264_LEVEL_4_0: case H264_LEVEL_4_1: case H264_LEVEL_4_2: case H264_LEVEL_5_0: case H264_LEVEL_5_1: return OK; default: return NOT_OK; } } /*! ************************************************************************** * \if Function name : isvcd_start_of_pic \endif * * \brief * Initialize the Parameter required for all the slices for a picture * * \return : Nothing * ************************************************************************** */ WORD32 isvcd_start_of_pic(svc_dec_lyr_struct_t *ps_svc_lyr_dec, WORD32 i4_poc, pocstruct_t *ps_temp_poc, UWORD16 u2_frame_num, dec_pic_params_t *ps_pps) { dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; pocstruct_t *ps_prev_poc = &ps_dec->s_cur_pic_poc; pocstruct_t *ps_cur_poc = ps_temp_poc; dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice; dec_seq_params_t *ps_seq = ps_dec->ps_cur_sps; UWORD8 u1_bottom_field_flag = ps_cur_slice->u1_bottom_field_flag; UWORD8 u1_field_pic_flag = ps_cur_slice->u1_field_pic_flag; /* high profile related declarations */ WORD32 ret; H264_MUTEX_LOCK(&ps_dec->process_disp_mutex); if(u1_field_pic_flag == 1) { ps_dec->i4_error_code = ERROR_SVC_FIELD_PIC_UNSUPPORTED; return ERROR_SVC_FIELD_PIC_UNSUPPORTED; } /* check output buffer size given by the application */ if(check_app_out_buf_size(ps_dec) != IV_SUCCESS) return IVD_DISP_FRM_ZERO_OP_BUF_SIZE; ps_prev_poc->i4_pic_order_cnt_lsb = ps_cur_poc->i4_pic_order_cnt_lsb; ps_prev_poc->i4_pic_order_cnt_msb = ps_cur_poc->i4_pic_order_cnt_msb; ps_prev_poc->i4_delta_pic_order_cnt_bottom = ps_cur_poc->i4_delta_pic_order_cnt_bottom; ps_prev_poc->i4_delta_pic_order_cnt[0] = ps_cur_poc->i4_delta_pic_order_cnt[0]; ps_prev_poc->i4_delta_pic_order_cnt[1] = ps_cur_poc->i4_delta_pic_order_cnt[1]; ps_prev_poc->u1_bot_field = ps_dec->ps_cur_slice->u1_bottom_field_flag; ps_prev_poc->i4_prev_frame_num_ofst = ps_cur_poc->i4_prev_frame_num_ofst; ps_prev_poc->u2_frame_num = u2_frame_num; ps_dec->i1_prev_mb_qp_delta = 0; ps_dec->i1_next_ctxt_idx = 0; ps_dec->u4_nmb_deblk = 0; if(ps_dec->u4_num_cores == 1) ps_dec->u4_nmb_deblk = 1; if(ps_seq->u1_mb_aff_flag == 1) { ps_dec->u4_nmb_deblk = 0; if(ps_dec->u4_num_cores > 2) ps_dec->u4_num_cores = 2; } ps_dec->u4_use_intrapred_line_copy = 0; if(ps_seq->u1_mb_aff_flag == 0) { ps_dec->u4_use_intrapred_line_copy = 1; } ps_dec->u4_app_disable_deblk_frm = 0; /* If degrade is enabled, set the degrade flags appropriately */ if(ps_dec->i4_degrade_type && ps_dec->i4_degrade_pics) { WORD32 degrade_pic; ps_dec->i4_degrade_pic_cnt++; degrade_pic = 0; /* If degrade is to be done in all frames, then do not check further */ switch(ps_dec->i4_degrade_pics) { case 4: { degrade_pic = 1; break; } case 3: { if(ps_cur_slice->u1_slice_type != I_SLICE) degrade_pic = 1; break; } case 2: { /* If pic count hits non-degrade interval or it is an islice, then do not * degrade */ if((ps_cur_slice->u1_slice_type != I_SLICE) && (ps_dec->i4_degrade_pic_cnt != ps_dec->i4_nondegrade_interval)) degrade_pic = 1; break; } case 1: { /* Check if the current picture is non-ref */ if(0 == ps_cur_slice->u1_nal_ref_idc) { degrade_pic = 1; } break; } } if(degrade_pic) { if(ps_dec->i4_degrade_type & 0x2) ps_dec->u4_app_disable_deblk_frm = 1; /* MC degrading is done only for non-ref pictures */ if(0 == ps_cur_slice->u1_nal_ref_idc) { if(ps_dec->i4_degrade_type & 0x4) ps_dec->i4_mv_frac_mask = 0; if(ps_dec->i4_degrade_type & 0x8) ps_dec->i4_mv_frac_mask = 0; } } else ps_dec->i4_degrade_pic_cnt = 0; } { dec_err_status_t *ps_err = ps_dec->ps_dec_err_status; if((ps_cur_slice->u1_slice_type == I_SLICE) || (ps_cur_slice->u1_slice_type == SI_SLICE)) ps_err->u1_cur_pic_type = PIC_TYPE_I; else ps_err->u1_cur_pic_type = PIC_TYPE_UNKNOWN; if(ps_err->u1_pic_aud_i == PIC_TYPE_I) { ps_err->u1_cur_pic_type = PIC_TYPE_I; ps_err->u1_pic_aud_i = PIC_TYPE_UNKNOWN; } if(ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL) { if(ps_err->u1_err_flag) ih264d_reset_ref_bufs(ps_dec->ps_dpb_mgr); ps_err->u1_err_flag = ACCEPT_ALL_PICS; } } if(ps_dec->u1_init_dec_flag && ps_dec->s_prev_seq_params.u1_eoseq_pending) { /* Reset the decoder picture buffers */ WORD32 j; for(j = 0; j < MAX_DISP_BUFS_NEW; j++) { ih264_buf_mgr_release((buf_mgr_t *) ps_dec->pv_pic_buf_mgr, j, BUF_MGR_REF); ih264_buf_mgr_release((buf_mgr_t *) ps_dec->pv_mv_buf_mgr, ps_dec->as_buf_id_info_map[j].mv_buf_id, BUF_MGR_REF); ih264_buf_mgr_release((buf_mgr_t *) ps_dec->pv_pic_buf_mgr, j, BUF_MGR_IO); } /* reset the decoder structure parameters related to buffer handling */ ps_dec->u1_second_field = 0; ps_dec->i4_cur_display_seq = 0; /********************************************************************/ /* indicate in the decoder output i4_status that some frames are being */ /* dropped, so that it resets timestamp and wait for a new sequence */ /********************************************************************/ ps_dec->s_prev_seq_params.u1_eoseq_pending = 0; } ret = isvcd_init_pic(ps_svc_lyr_dec, u2_frame_num, i4_poc, ps_pps); if(ret != OK) return ret; ps_dec->pv_parse_tu_coeff_data = ps_dec->pv_pic_tu_coeff_data; ps_dec->pv_proc_tu_coeff_data = ps_dec->pv_pic_tu_coeff_data; ps_dec->ps_nmb_info = ps_dec->ps_frm_mb_info; ps_svc_lyr_dec->ps_svc_nmb_info = ps_svc_lyr_dec->ps_svc_frm_mb_info; if(ps_dec->u1_separate_parse) { UWORD32 num_mbs; num_mbs = ps_dec->ps_cur_sps->u2_total_num_of_mbs << (1 - ps_dec->ps_cur_sps->u1_frame_mbs_only_flag); if(ps_dec->pu1_dec_mb_map) { memset((void *) ps_dec->pu1_dec_mb_map, 0, num_mbs); } if(ps_dec->pu1_recon_mb_map) { memset((void *) ps_dec->pu1_recon_mb_map, 0, num_mbs); } if(ps_dec->pu2_slice_num_map) { memset((void *) ps_dec->pu2_slice_num_map, 0, (num_mbs * sizeof(UWORD16))); } } ps_dec->ps_parse_cur_slice = &(ps_dec->ps_dec_slice_buf[0]); ps_dec->ps_decode_cur_slice = &(ps_dec->ps_dec_slice_buf[0]); ps_dec->ps_computebs_cur_slice = &(ps_dec->ps_dec_slice_buf[0]); ps_dec->u2_cur_slice_num = 0; /* Initialize all the HP toolsets to zero */ ps_dec->s_high_profile.u1_scaling_present = 0; ps_dec->s_high_profile.u1_transform8x8_present = 0; /* Get Next Free Picture */ if(1 == ps_dec->u4_share_disp_buf) { UWORD32 i; /* Free any buffer that is in the queue to be freed */ for(i = 0; i < MAX_DISP_BUFS_NEW; i++) { if(0 == ps_dec->u4_disp_buf_to_be_freed[i]) continue; ih264_buf_mgr_release((buf_mgr_t *) ps_dec->pv_pic_buf_mgr, i, BUF_MGR_IO); ps_dec->u4_disp_buf_to_be_freed[i] = 0; ps_dec->u4_disp_buf_mapping[i] = 0; } } if(!(u1_field_pic_flag && 0 != ps_dec->u1_top_bottom_decoded)) { pic_buffer_t *ps_cur_pic; WORD32 cur_pic_buf_id, cur_mv_buf_id; col_mv_buf_t *ps_col_mv; while(1) { ps_cur_pic = (pic_buffer_t *) ih264_buf_mgr_get_next_free( (buf_mgr_t *) ps_dec->pv_pic_buf_mgr, &cur_pic_buf_id); /* In case of IDR slices, if there is no free picture buffer, then release * all buffers from display and reference */ if((ps_cur_pic == NULL) && (ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL)) { WORD32 j; for(j = 0; j < MAX_DISP_BUFS_NEW; j++) { ih264_buf_mgr_release((buf_mgr_t *) ps_dec->pv_pic_buf_mgr, j, BUF_MGR_REF); ih264_buf_mgr_release((buf_mgr_t *) ps_dec->pv_mv_buf_mgr, ps_dec->as_buf_id_info_map[j].mv_buf_id, BUF_MGR_REF); ih264_buf_mgr_release((buf_mgr_t *) ps_dec->pv_pic_buf_mgr, j, BUF_MGR_IO); } ps_cur_pic = (pic_buffer_t *) ih264_buf_mgr_get_next_free( (buf_mgr_t *) ps_dec->pv_pic_buf_mgr, &cur_pic_buf_id); } if(ps_cur_pic == NULL) { ps_dec->i4_error_code = ERROR_UNAVAIL_PICBUF_T; ps_dec->ps_dec_err_status->u1_err_flag |= REJECT_CUR_PIC; return ERROR_UNAVAIL_PICBUF_T; } if(0 == ps_dec->u4_disp_buf_mapping[cur_pic_buf_id]) { break; } } ps_col_mv = (col_mv_buf_t *) ih264_buf_mgr_get_next_free( (buf_mgr_t *) ps_dec->pv_mv_buf_mgr, &cur_mv_buf_id); if(ps_col_mv == NULL) { ps_dec->i4_error_code = ERROR_UNAVAIL_MVBUF_T; ps_dec->ps_dec_err_status->u1_err_flag |= REJECT_CUR_PIC; return ERROR_UNAVAIL_MVBUF_T; } ps_dec->ps_cur_pic = ps_cur_pic; ps_dec->u1_pic_buf_id = cur_pic_buf_id; ps_cur_pic->u4_ts = ps_dec->u4_ts; memcpy(&ps_cur_pic->s_sei_pic, ps_dec->ps_sei, sizeof(sei)); ps_cur_pic->u1_mv_buf_id = cur_mv_buf_id; ps_dec->as_buf_id_info_map[cur_pic_buf_id].mv_buf_id = cur_mv_buf_id; if(ps_dec->u1_enable_mb_info) { UWORD32 mb_info_map_size = ps_dec->u4_total_mbs << 2; ps_dec->as_buf_id_info_map[cur_pic_buf_id].pu1_qp_map = ps_dec->pu1_qp_map_base + cur_pic_buf_id * mb_info_map_size; ps_dec->as_buf_id_info_map[cur_pic_buf_id].pu1_mb_type_map = ps_dec->pu1_mb_type_map_base + cur_pic_buf_id * mb_info_map_size; memset(ps_dec->as_buf_id_info_map[cur_pic_buf_id].pu1_qp_map, 0, mb_info_map_size); memset(ps_dec->as_buf_id_info_map[cur_pic_buf_id].pu1_mb_type_map, 0, mb_info_map_size); } ps_cur_pic->pu1_col_zero_flag = (UWORD8 *) ps_col_mv->pv_col_zero_flag; ps_cur_pic->ps_mv = (mv_pred_t *) ps_col_mv->pv_mv; ps_dec->au1_pic_buf_ref_flag[cur_pic_buf_id] = 0; { /*make first entry of list0 and list1 point to cur pic, *so that if first slice is in error, ref pic struct will have valid *entries*/ ps_dec->ps_ref_pic_buf_lx[0] = ps_dec->ps_dpb_mgr->ps_init_dpb[0]; ps_dec->ps_ref_pic_buf_lx[1] = ps_dec->ps_dpb_mgr->ps_init_dpb[1]; *(ps_dec->ps_dpb_mgr->ps_init_dpb[0][0]) = *ps_cur_pic; /* Initialize for field reference as well */ *(ps_dec->ps_dpb_mgr->ps_init_dpb[0][MAX_REF_BUFS]) = *ps_cur_pic; *(ps_dec->ps_dpb_mgr->ps_mod_dpb[0][0]) = *ps_cur_pic; /* Initialize for field reference as well */ *(ps_dec->ps_dpb_mgr->ps_mod_dpb[0][MAX_REF_BUFS]) = *ps_cur_pic; *(ps_dec->ps_dpb_mgr->ps_init_dpb[1][0]) = *ps_cur_pic; /* Initialize for field reference as well */ *(ps_dec->ps_dpb_mgr->ps_init_dpb[1][MAX_REF_BUFS]) = *ps_cur_pic; *(ps_dec->ps_dpb_mgr->ps_mod_dpb[1][0]) = *ps_cur_pic; /* Initialize for field reference as well */ *(ps_dec->ps_dpb_mgr->ps_mod_dpb[1][MAX_REF_BUFS]) = *ps_cur_pic; } ps_dec->ps_cur_pic->u1_picturetype = u1_field_pic_flag; ps_dec->ps_cur_pic->u4_pack_slc_typ = SKIP_NONE; H264_DEC_DEBUG_PRINT("got a buffer\n"); } else { H264_DEC_DEBUG_PRINT("did not get a buffer\n"); } ps_dec->u4_pic_buf_got = 1; ps_dec->ps_cur_pic->i4_poc = i4_poc; ps_dec->ps_cur_pic->i4_frame_num = u2_frame_num; ps_dec->ps_cur_pic->i4_pic_num = u2_frame_num; ps_dec->ps_cur_pic->i4_top_field_order_cnt = ps_pps->i4_top_field_order_cnt; ps_dec->ps_cur_pic->i4_bottom_field_order_cnt = ps_pps->i4_bottom_field_order_cnt; ps_dec->ps_cur_pic->i4_avg_poc = ps_pps->i4_avg_poc; ps_dec->ps_cur_pic->u4_time_stamp = ps_dec->u4_pts; ps_dec->s_cur_pic = *(ps_dec->ps_cur_pic); if(u1_field_pic_flag && u1_bottom_field_flag) { WORD32 i4_temp_poc; WORD32 i4_top_field_order_poc, i4_bot_field_order_poc; /* Point to odd lines, since it's bottom field */ ps_dec->s_cur_pic.pu1_buf1 += ps_dec->s_cur_pic.u2_frm_wd_y; ps_dec->s_cur_pic.pu1_buf2 += ps_dec->s_cur_pic.u2_frm_wd_uv; ps_dec->s_cur_pic.pu1_buf3 += ps_dec->s_cur_pic.u2_frm_wd_uv; ps_dec->s_cur_pic.ps_mv += ((ps_dec->u2_pic_ht * ps_dec->u2_pic_wd) >> 5); ps_dec->s_cur_pic.pu1_col_zero_flag += ((ps_dec->u2_pic_ht * ps_dec->u2_pic_wd) >> 5); ps_dec->ps_cur_pic->u1_picturetype |= BOT_FLD; i4_top_field_order_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; i4_bot_field_order_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; i4_temp_poc = MIN(i4_top_field_order_poc, i4_bot_field_order_poc); ps_dec->ps_cur_pic->i4_avg_poc = i4_temp_poc; } ps_cur_slice->u1_mbaff_frame_flag = ps_seq->u1_mb_aff_flag && (!u1_field_pic_flag); ps_dec->ps_cur_pic->u1_picturetype |= (ps_cur_slice->u1_mbaff_frame_flag << 2); ps_dec->ps_cur_mb_row = ps_dec->ps_nbr_mb_row; ps_dec->ps_cur_mb_row += 2; ps_dec->ps_top_mb_row = ps_dec->ps_nbr_mb_row; ps_dec->ps_top_mb_row += ((ps_dec->u2_frm_wd_in_mbs + 2) << (1 - ps_dec->ps_cur_sps->u1_frame_mbs_only_flag)); // Increment by 2 ,so that left mb (mbaff decrements by 2) will always be valid ps_dec->ps_top_mb_row += 2; ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv; ps_dec->ps_mv_top = ps_dec->ps_mv_top_p[0]; ps_dec->u1_mv_top_p = 0; ps_dec->u1_mb_idx = 0; ps_dec->ps_mv_left = ps_dec->s_cur_pic.ps_mv; ps_dec->u2_total_mbs_coded = 0; ps_dec->i4_submb_ofst = -(SUB_BLK_SIZE); ps_dec->u4_pred_info_idx = 0; ps_dec->u4_pred_info_pkd_idx = 0; ps_dec->u4_dma_buf_idx = 0; ps_dec->ps_mv = ps_dec->s_cur_pic.ps_mv; ps_dec->ps_mv_bank_cur = ps_dec->s_cur_pic.ps_mv; ps_dec->pu1_col_zero_flag = ps_dec->s_cur_pic.pu1_col_zero_flag; ps_dec->ps_part = ps_dec->ps_parse_part_params; ps_dec->i2_prev_slice_mbx = -1; ps_dec->i2_prev_slice_mby = 0; ps_dec->u2_mv_2mb[0] = 0; ps_dec->u2_mv_2mb[1] = 0; ps_dec->u1_last_pic_not_decoded = 0; ps_dec->u2_cur_slice_num_dec_thread = 0; ps_dec->u2_cur_slice_num_bs = 0; ps_dec->u4_intra_pred_line_ofst = 0; ps_dec->pu1_cur_y_intra_pred_line = ps_dec->pu1_y_intra_pred_line; ps_dec->pu1_cur_u_intra_pred_line = ps_dec->pu1_u_intra_pred_line; ps_dec->pu1_cur_v_intra_pred_line = ps_dec->pu1_v_intra_pred_line; ps_dec->pu1_cur_y_intra_pred_line_base = ps_dec->pu1_y_intra_pred_line; ps_dec->pu1_cur_u_intra_pred_line_base = ps_dec->pu1_u_intra_pred_line; ps_dec->pu1_cur_v_intra_pred_line_base = ps_dec->pu1_v_intra_pred_line; ps_dec->pu1_prev_y_intra_pred_line = ps_dec->pu1_y_intra_pred_line + (ps_dec->u2_frm_wd_in_mbs * MB_SIZE); ps_dec->pu1_prev_u_intra_pred_line = ps_dec->pu1_u_intra_pred_line + ps_dec->u2_frm_wd_in_mbs * BLK8x8SIZE * YUV420SP_FACTOR; ps_dec->pu1_prev_v_intra_pred_line = ps_dec->pu1_v_intra_pred_line + ps_dec->u2_frm_wd_in_mbs * BLK8x8SIZE; ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic; /* Initialize The Function Pointer Depending Upon the Entropy and MbAff Flag */ { if(ps_cur_slice->u1_mbaff_frame_flag) { ps_dec->pf_compute_bs = ih264d_compute_bs_mbaff; ps_dec->pf_mvpred = ih264d_mvpred_mbaff; ps_svc_lyr_dec->pf_svc_compute_bs = isvcd_compute_bs_non_mbaff; } else { ps_dec->pf_compute_bs = ih264d_compute_bs_non_mbaff; ps_svc_lyr_dec->pf_svc_compute_bs = isvcd_compute_bs_non_mbaff; ps_dec->u1_cur_mb_fld_dec_flag = ps_cur_slice->u1_field_pic_flag; if((ps_svc_lyr_dec->u1_layer_identifier == TARGET_LAYER) && (0 == ps_svc_lyr_dec->u1_base_res_flag)) { ps_svc_lyr_dec->pf_svc_compute_bs = isvcd_compute_bs_non_mbaff_target_lyr; } if((ps_svc_lyr_dec->u1_layer_identifier == TARGET_LAYER) && (1 == ps_svc_lyr_dec->u1_base_res_flag)) { ps_svc_lyr_dec->pf_svc_compute_bs = isvcd_compute_bs_non_mbaff_target_lyr_no_inter_layer; } if((ps_svc_lyr_dec->u1_layer_identifier == MEDIAL_ENHANCEMENT_LAYER) && (0 == ps_svc_lyr_dec->u1_base_res_flag)) { ps_svc_lyr_dec->pf_svc_compute_bs = isvcd_compute_bs_non_mbaff_medial_lyr; } } } /* Set up the Parameter for DMA transfer */ { UWORD8 u1_field_pic_flag = ps_dec->ps_cur_slice->u1_field_pic_flag; UWORD8 u1_mbaff = ps_cur_slice->u1_mbaff_frame_flag; UWORD8 uc_lastmbs = (((ps_dec->u2_pic_wd) >> 4) % (ps_dec->u1_recon_mb_grp >> u1_mbaff)); UWORD16 ui16_lastmbs_widthY = (uc_lastmbs ? (uc_lastmbs << 4) : ((ps_dec->u1_recon_mb_grp >> u1_mbaff) << 4)); UWORD16 ui16_lastmbs_widthUV = uc_lastmbs ? (uc_lastmbs << 3) : ((ps_dec->u1_recon_mb_grp >> u1_mbaff) << 3); ps_dec->s_tran_addrecon.pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1; ps_dec->s_tran_addrecon.pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2; ps_dec->s_tran_addrecon.pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3; ps_dec->s_tran_addrecon.u2_frm_wd_y = ps_dec->u2_frm_wd_y << u1_field_pic_flag; ps_dec->s_tran_addrecon.u2_frm_wd_uv = ps_dec->u2_frm_wd_uv << u1_field_pic_flag; if(u1_field_pic_flag) { ui16_lastmbs_widthY += ps_dec->u2_frm_wd_y; ui16_lastmbs_widthUV += ps_dec->u2_frm_wd_uv; } /* Normal Increment of Pointer */ ps_dec->s_tran_addrecon.u4_inc_y[0] = ((ps_dec->u1_recon_mb_grp << 4) >> u1_mbaff); ps_dec->s_tran_addrecon.u4_inc_uv[0] = ((ps_dec->u1_recon_mb_grp << 4) >> u1_mbaff); /* End of Row Increment */ ps_dec->s_tran_addrecon.u4_inc_y[1] = (ui16_lastmbs_widthY + (PAD_LEN_Y_H << 1) + ps_dec->s_tran_addrecon.u2_frm_wd_y * ((15 << u1_mbaff) + u1_mbaff)); ps_dec->s_tran_addrecon.u4_inc_uv[1] = (ui16_lastmbs_widthUV + (PAD_LEN_UV_H << 2) + ps_dec->s_tran_addrecon.u2_frm_wd_uv * ((15 << u1_mbaff) + u1_mbaff)); /* Assign picture numbers to each frame/field */ /* only once per picture. */ ih264d_assign_pic_num(ps_dec); ps_dec->s_tran_addrecon.u2_mv_top_left_inc = (ps_dec->u1_recon_mb_grp << 2) - 1 - (u1_mbaff << 2); ps_dec->s_tran_addrecon.u2_mv_left_inc = ((ps_dec->u1_recon_mb_grp >> u1_mbaff) - 1) << (4 + u1_mbaff); } /**********************************************************************/ /* High profile related initialization at pictrue level */ /**********************************************************************/ if((ps_seq->u1_profile_idc == HIGH_PROFILE_IDC) || (ps_seq->u1_profile_idc == SCALABLE_HIGH_PROFILE_IDC) || (ps_seq->u1_profile_idc == SCALABLE_BASELINE_PROFILE_IDC)) { if((ps_seq->i4_seq_scaling_matrix_present_flag) || (ps_pps->i4_pic_scaling_matrix_present_flag)) { ret = ih264d_form_scaling_matrix_picture(ps_seq, ps_pps, ps_dec); ps_dec->s_high_profile.u1_scaling_present = 1; } else { ret = ih264d_form_default_scaling_matrix(ps_dec); } if(ps_pps->i4_transform_8x8_mode_flag) { ps_dec->s_high_profile.u1_transform8x8_present = 1; } } else { ret = ih264d_form_default_scaling_matrix(ps_dec); } if(ret != OK) return ret; /* required while reading the transform_size_8x8 u4_flag */ ps_dec->s_high_profile.u1_direct_8x8_inference_flag = ps_seq->u1_direct_8x8_inference_flag; ps_dec->s_high_profile.s_cavlc_ctxt = ps_dec->s_cavlc_ctxt; ps_dec->i1_recon_in_thread3_flag = 1; ps_dec->ps_frame_buf_ip_recon = &ps_dec->s_tran_addrecon; if(ps_dec->u1_separate_parse) { memcpy(&ps_dec->s_tran_addrecon_parse, &ps_dec->s_tran_addrecon, sizeof(tfr_ctxt_t)); } ih264d_init_deblk_tfr_ctxt(ps_dec, &(ps_dec->s_pad_mgr), &(ps_dec->s_tran_addrecon), ps_dec->u2_frm_wd_in_mbs, 0); ps_dec->ps_cur_deblk_mb = ps_dec->ps_deblk_pic; ps_dec->u4_cur_deblk_mb_num = 0; ps_dec->u4_deblk_mb_x = 0; ps_dec->u4_deblk_mb_y = 0; ps_dec->pu4_wt_ofsts = ps_dec->pu4_wts_ofsts_mat; ps_dec->u4_first_slice_in_pic = 0; H264_MUTEX_UNLOCK(&ps_dec->process_disp_mutex); return OK; } /*! ************************************************************************** * \if Function name : isvcd_parse_decode_slice_ext_nal \endif * * \brief * Parses a slice extension NAL * * \return * 0 on Success and Error code otherwise ************************************************************************** */ WORD32 isvcd_parse_decode_slice_ext_nal(UWORD8 u1_is_idr_slice, UWORD8 u1_nal_ref_idc, svc_dec_lyr_struct_t *ps_svc_lyr_dec) { dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; dec_bit_stream_t *ps_bitstrm = ps_dec->ps_bitstrm; dec_pic_params_t *ps_pps; dec_seq_params_t *ps_seq; dec_svc_seq_params_t *ps_subset_seq; dec_slice_params_t *ps_cur_slice = NULL; dec_slice_svc_ext_params_t *ps_svc_slice_params = NULL; pocstruct_t s_tmp_poc = {0}; WORD32 i_delta_poc[2] = {0}; WORD32 i4_poc = 0; UWORD16 u2_first_mb_in_slice, u2_frame_num; UWORD8 u1_field_pic_flag, u1_redundant_pic_cnt = 0, u1_slice_type; UWORD32 u4_idr_pic_id = 0; UWORD8 u1_bottom_field_flag, u1_pic_order_cnt_type; UWORD8 u1_nal_unit_type; UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; WORD8 i1_is_end_of_poc; WORD32 ret; WORD32 prev_slice_err, num_mb_skipped; UWORD8 u1_mbaff; pocstruct_t *ps_cur_poc; UWORD32 u4_temp; WORD32 i_temp; svc_dec_ctxt_t *psvcd_dec_ctxt; dec_struct_t *ps_dec_cur_lyr_minus_1; svc_dec_lyr_struct_t *ps_svc_cur_lyr_dec_minus_1; ps_cur_slice = ps_dec->ps_cur_slice; ps_svc_slice_params = &ps_svc_lyr_dec->s_svc_slice_params; /* read FirstMbInSlice and slice type*/ ps_dec->ps_dpb_cmds->u1_dpb_commands_read_slc = 0; u2_first_mb_in_slice = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u2_first_mb_in_slice > (ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs)) { return ERROR_CORRUPTED_SLICE; } /*we currently don not support ASO*/ if(((u2_first_mb_in_slice << ps_cur_slice->u1_mbaff_frame_flag) <= ps_dec->u2_cur_mb_addr) && (ps_dec->u4_first_slice_in_pic == 0)) { return ERROR_CORRUPTED_SLICE; } if(ps_dec->u4_first_slice_in_pic == 1) { if(u2_first_mb_in_slice != 0) { return ERROR_CORRUPTED_SLICE; } } COPYTHECONTEXT("Slice Header SVC ext: first_mb_in_slice", u2_first_mb_in_slice); u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_temp > 9) return ERROR_INV_SLC_TYPE_T; u1_slice_type = u4_temp; COPYTHECONTEXT("Slice Header SVC ext: slice_type", (u1_slice_type)); /* Find Out the Slice Type is 5 to 9 or not then Set the Flag */ /* u1_sl_typ_5_9 = 1 .Which tells that all the slices in the Pic*/ /* will be of same type of current */ if(u1_slice_type > 4) { u1_slice_type -= 5; } u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_temp & MASK_ERR_PIC_SET_ID) return ERROR_INV_SLICE_HDR_T; /* discard slice if pic param is invalid */ COPYTHECONTEXT("Slice Header SVC ext: pic_parameter_set_id", u4_temp); ps_pps = &ps_dec->ps_pps[u4_temp]; if(FALSE == ps_pps->u1_is_valid) { return ERROR_INV_SLICE_HDR_T; } /* slices in a layer should have same PPS id*/ if(UINT32_MAX == ps_svc_lyr_dec->u4_pps_id_for_layer) { ps_svc_lyr_dec->u4_pps_id_for_layer = u4_temp; } else if(u4_temp != ps_svc_lyr_dec->u4_pps_id_for_layer) { return ERROR_INV_SLICE_HDR_T; } ps_seq = ps_pps->ps_sps; ps_seq += MAX_NUM_SEQ_PARAMS; ps_subset_seq = &ps_svc_lyr_dec->ps_subset_sps[MAX_NUM_SEQ_PARAMS + ps_seq->u1_seq_parameter_set_id]; ps_dec->ps_cur_sps = ps_seq; ps_svc_lyr_dec->ps_cur_subset_sps = ps_subset_seq; if(!ps_seq) return ERROR_INV_SLICE_HDR_T; if(FALSE == ps_seq->u1_is_valid) return ERROR_INV_SLICE_HDR_T; if(ps_seq->u1_mb_aff_flag) return ERROR_INV_SLICE_HDR_T; if(ps_seq->u1_level_idc > H264_LEVEL_4_2) return ERROR_INV_SLICE_HDR_T; if(!ps_seq->u1_frame_mbs_only_flag) return ERROR_INV_SLICE_HDR_T; if(OK != isvcd_verify_level(ps_seq->u1_level_idc)) return ERROR_INV_SLICE_HDR_T; if(ps_dec->u1_init_dec_flag == 1) { if(ps_dec->u2_frm_wd_in_mbs != ps_seq->u2_frm_wd_in_mbs) return ERROR_INV_SLICE_HDR_T; if(ps_dec->u2_frm_ht_in_mbs != ps_seq->u2_frm_ht_in_mbs) return ERROR_INV_SLICE_HDR_T; } if(ps_dec->u1_init_dec_flag == 1) { if(ps_dec->u2_disp_height != ps_subset_seq->u2_disp_height) return ERROR_INV_SLICE_HDR_T; if(ps_dec->u2_disp_width != ps_subset_seq->u2_disp_width) return ERROR_INV_SLICE_HDR_T; } ps_dec->i4_reorder_depth = ps_subset_seq->i4_reorder_depth; ps_dec->u2_disp_height = ps_subset_seq->u2_disp_height; ps_dec->u2_disp_width = ps_subset_seq->u2_disp_width; if(ps_svc_lyr_dec->u1_layer_id > 0) { psvcd_dec_ctxt = ps_svc_lyr_dec->ps_svcd_ctxt; ps_svc_cur_lyr_dec_minus_1 = &psvcd_dec_ctxt->ps_svc_dec_lyr[ps_svc_lyr_dec->u1_layer_id - 1]; ps_dec_cur_lyr_minus_1 = &ps_svc_cur_lyr_dec_minus_1->s_dec; if((ps_dec_cur_lyr_minus_1->u2_pic_wd > ps_subset_seq->u2_pic_wd) || (ps_dec_cur_lyr_minus_1->u2_pic_ht > ps_subset_seq->u2_pic_ht)) { return ERROR_CORRUPTED_SLICE; } } ps_dec->u2_pic_wd = ps_subset_seq->u2_pic_wd; ps_dec->u2_pic_ht = ps_subset_seq->u2_pic_ht; ps_dec->u4_total_mbs = ps_seq->u2_total_num_of_mbs << (1 - ps_seq->u1_frame_mbs_only_flag); /* Determining the Width and Height of Frame from that of Picture */ ps_dec->u2_frm_wd_y = ps_subset_seq->u2_frm_wd_y; ps_dec->u2_frm_ht_y = ps_subset_seq->u2_frm_ht_y; ps_dec->u2_frm_wd_uv = ps_subset_seq->u2_frm_wd_uv; ps_dec->u2_frm_ht_uv = ps_subset_seq->u2_frm_ht_uv; ps_dec->s_pad_mgr.u1_pad_len_y_v = ps_subset_seq->u1_pad_len_y_v; ps_dec->s_pad_mgr.u1_pad_len_cr_v = ps_subset_seq->u1_pad_len_cr_v; ps_dec->u2_frm_wd_in_mbs = ps_seq->u2_frm_wd_in_mbs; ps_dec->u2_frm_ht_in_mbs = ps_seq->u2_frm_ht_in_mbs; ps_dec->u2_crop_offset_y = ps_subset_seq->u2_crop_offset_y; ps_dec->u2_crop_offset_uv = ps_subset_seq->u2_crop_offset_uv; /* Get the frame num */ u2_frame_num = ih264d_get_bits_h264(ps_bitstrm, ps_seq->u1_bits_in_frm_num); COPYTHECONTEXT("Slice Header SVC ext: frame_num", u2_frame_num); if(!ps_dec->u1_first_slice_in_stream && ps_dec->u4_first_slice_in_pic) { pocstruct_t *ps_prev_poc = &ps_dec->s_prev_pic_poc; pocstruct_t *ps_cur_poc = &ps_dec->s_cur_pic_poc; ps_dec->u2_mbx = 0xffff; ps_dec->u2_mby = 0; if((0 == u1_is_idr_slice) && ps_cur_slice->u1_nal_ref_idc) ps_dec->u2_prev_ref_frame_num = ps_cur_slice->u2_frame_num; if(u1_is_idr_slice || ps_cur_slice->u1_mmco_equalto5) ps_dec->u2_prev_ref_frame_num = 0; if(ps_dec->ps_cur_sps->u1_gaps_in_frame_num_value_allowed_flag) { isvcd_decode_gaps_in_frame_num(ps_dec, u2_frame_num); } ps_prev_poc->i4_prev_frame_num_ofst = ps_cur_poc->i4_prev_frame_num_ofst; ps_prev_poc->u2_frame_num = ps_cur_poc->u2_frame_num; ps_prev_poc->u1_mmco_equalto5 = ps_cur_slice->u1_mmco_equalto5; if(ps_cur_slice->u1_nal_ref_idc) { ps_prev_poc->i4_pic_order_cnt_lsb = ps_cur_poc->i4_pic_order_cnt_lsb; ps_prev_poc->i4_pic_order_cnt_msb = ps_cur_poc->i4_pic_order_cnt_msb; ps_prev_poc->i4_delta_pic_order_cnt_bottom = ps_cur_poc->i4_delta_pic_order_cnt_bottom; ps_prev_poc->i4_delta_pic_order_cnt[0] = ps_cur_poc->i4_delta_pic_order_cnt[0]; ps_prev_poc->i4_delta_pic_order_cnt[1] = ps_cur_poc->i4_delta_pic_order_cnt[1]; ps_prev_poc->u1_bot_field = ps_cur_poc->u1_bot_field; } ps_dec->u2_total_mbs_coded = 0; } /* Get the field related flags */ if(!ps_seq->u1_frame_mbs_only_flag) { u1_field_pic_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: field_pic_flag", u1_field_pic_flag); u1_bottom_field_flag = 0; if(u1_field_pic_flag) { ps_dec->pu1_inv_scan = (UWORD8 *) gau1_ih264d_inv_scan_fld; u1_bottom_field_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: bottom_field_flag", u1_bottom_field_flag); } else { ps_dec->pu1_inv_scan = (UWORD8 *) gau1_ih264d_inv_scan; } } else { u1_field_pic_flag = 0; u1_bottom_field_flag = 0; ps_dec->pu1_inv_scan = (UWORD8 *) gau1_ih264d_inv_scan; } u1_nal_unit_type = SLICE_NAL; if(u1_is_idr_slice) { u1_nal_unit_type = IDR_SLICE_NAL; u4_idr_pic_id = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_idr_pic_id > 65535) return ERROR_INV_SLICE_HDR_T; COPYTHECONTEXT("Slice Header SVC ext: ", u4_idr_pic_id); } /* read delta pic order count information*/ i_delta_poc[0] = i_delta_poc[1] = 0; s_tmp_poc.i4_pic_order_cnt_lsb = 0; s_tmp_poc.i4_delta_pic_order_cnt_bottom = 0; u1_pic_order_cnt_type = ps_seq->u1_pic_order_cnt_type; if(u1_pic_order_cnt_type == 0) { i_temp = ih264d_get_bits_h264(ps_bitstrm, ps_seq->u1_log2_max_pic_order_cnt_lsb_minus); if(i_temp < 0 || i_temp >= ps_seq->i4_max_pic_order_cntLsb) return ERROR_INV_SLICE_HDR_T; s_tmp_poc.i4_pic_order_cnt_lsb = i_temp; COPYTHECONTEXT("Slice Header SVC ext: pic_order_cnt_lsb", s_tmp_poc.i4_pic_order_cnt_lsb); if((ps_pps->u1_pic_order_present_flag == 1) && (!u1_field_pic_flag)) { s_tmp_poc.i4_delta_pic_order_cnt_bottom = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: delta_pic_order_cnt_bottom", s_tmp_poc.i4_delta_pic_order_cnt_bottom); } } s_tmp_poc.i4_delta_pic_order_cnt[0] = 0; s_tmp_poc.i4_delta_pic_order_cnt[1] = 0; if(u1_pic_order_cnt_type == 1 && (!ps_seq->u1_delta_pic_order_always_zero_flag)) { s_tmp_poc.i4_delta_pic_order_cnt[0] = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: delta_pic_order_cnt[0]", s_tmp_poc.i4_delta_pic_order_cnt[0]); if(ps_pps->u1_pic_order_present_flag && !u1_field_pic_flag) { s_tmp_poc.i4_delta_pic_order_cnt[1] = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: delta_pic_order_cnt[1]", s_tmp_poc.i4_delta_pic_order_cnt[1]); } } if(ps_pps->u1_redundant_pic_cnt_present_flag) { u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_temp > MAX_REDUNDANT_PIC_CNT) return ERROR_INV_SLICE_HDR_T; u1_redundant_pic_cnt = u4_temp; COPYTHECONTEXT("Slice Header SVC ext: redundant_pic_cnt", u1_redundant_pic_cnt); } /*--------------------------------------------------------------------*/ /* Check if the slice is part of new picture */ /*--------------------------------------------------------------------*/ /* First slice of a picture is always considered as part of new picture */ i1_is_end_of_poc = 1; ps_dec->ps_dec_err_status->u1_err_flag &= MASK_REJECT_CUR_PIC; if(ps_dec->u4_first_slice_in_pic == 0) { i1_is_end_of_poc = ih264d_is_end_of_pic(u2_frame_num, u1_nal_ref_idc, &s_tmp_poc, &ps_dec->s_cur_pic_poc, ps_cur_slice, u1_pic_order_cnt_type, u1_nal_unit_type, u4_idr_pic_id, u1_field_pic_flag, u1_bottom_field_flag); if(i1_is_end_of_poc) { ps_dec->u1_first_slice_in_stream = 0; return ERROR_INCOMPLETE_FRAME; } } /*--------------------------------------------------------------------*/ /* Check for error in slice and parse the missing/corrupted MB's */ /* as skip-MB's in an inserted P-slice */ /*--------------------------------------------------------------------*/ u1_mbaff = ps_seq->u1_mb_aff_flag && (!u1_field_pic_flag); prev_slice_err = 0; if(i1_is_end_of_poc || ps_dec->u1_first_slice_in_stream) { /* If the current slice is not a field or frame number of the current * slice doesn't match with previous slice, and decoder is expecting * to decode a field i.e. ps_dec->u1_top_bottom_decoded is not 0 and * is not (TOP_FIELD_ONLY | BOT_FIELD_ONLY), treat it as a dangling * field */ if((u1_field_pic_flag == 0 || u2_frame_num != ps_dec->u2_prv_frame_num) && ps_dec->u1_top_bottom_decoded != 0 && ps_dec->u1_top_bottom_decoded != (TOP_FIELD_ONLY | BOT_FIELD_ONLY)) { ps_dec->u1_dangling_field = 1; if(ps_dec->u4_first_slice_in_pic) { // first slice - dangling field prev_slice_err = 1; } else { // last slice - dangling field prev_slice_err = 2; } if(ps_dec->u1_top_bottom_decoded == TOP_FIELD_ONLY) ps_cur_slice->u1_bottom_field_flag = 1; else ps_cur_slice->u1_bottom_field_flag = 0; num_mb_skipped = (ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs) - ps_dec->u2_total_mbs_coded; ps_cur_poc = &ps_dec->s_cur_pic_poc; u1_is_idr_slice = ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL; } else if(ps_dec->u4_first_slice_in_pic) { if(u2_first_mb_in_slice > 0) { // first slice - missing/header corruption prev_slice_err = 1; num_mb_skipped = u2_first_mb_in_slice << u1_mbaff; ps_cur_poc = &s_tmp_poc; // initializing slice parameters ps_cur_slice->u4_idr_pic_id = u4_idr_pic_id; ps_cur_slice->u1_field_pic_flag = u1_field_pic_flag; ps_cur_slice->u1_bottom_field_flag = u1_bottom_field_flag; ps_cur_slice->i4_pic_order_cnt_lsb = s_tmp_poc.i4_pic_order_cnt_lsb; ps_cur_slice->u1_nal_unit_type = u1_nal_unit_type; ps_cur_slice->u1_redundant_pic_cnt = u1_redundant_pic_cnt; ps_cur_slice->u1_nal_ref_idc = u1_nal_ref_idc; ps_cur_slice->u1_pic_order_cnt_type = u1_pic_order_cnt_type; ps_cur_slice->u1_mbaff_frame_flag = ps_seq->u1_mb_aff_flag && (!u1_field_pic_flag); } } else { /* since i1_is_end_of_poc is set ,means new frame num is encountered. so * conceal the current frame completely */ prev_slice_err = 2; num_mb_skipped = (ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs) - ps_dec->u2_total_mbs_coded; ps_cur_poc = &s_tmp_poc; } } else { if((u2_first_mb_in_slice << u1_mbaff) > ps_dec->u2_total_mbs_coded) { // previous slice - missing/corruption prev_slice_err = 2; num_mb_skipped = (u2_first_mb_in_slice << u1_mbaff) - ps_dec->u2_total_mbs_coded; ps_cur_poc = &s_tmp_poc; } else if((u2_first_mb_in_slice << u1_mbaff) < ps_dec->u2_total_mbs_coded) { return ERROR_CORRUPTED_SLICE; } } if(prev_slice_err) { ret = isvcd_mark_err_slice_skip((svc_dec_lyr_struct_t *) ps_dec, num_mb_skipped, u1_is_idr_slice, u2_frame_num, ps_cur_poc, prev_slice_err); if(ps_dec->u1_dangling_field == 1) { ps_dec->u1_second_field = 1 - ps_dec->u1_second_field; ps_dec->u1_first_slice_in_stream = 0; ps_dec->u1_top_bottom_decoded = TOP_FIELD_ONLY | BOT_FIELD_ONLY; return ERROR_DANGLING_FIELD_IN_PIC; } if(prev_slice_err == 2) { ps_dec->u1_first_slice_in_stream = 0; return ERROR_INCOMPLETE_FRAME; } if(ps_dec->u2_total_mbs_coded >= ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs) { /* return if all MBs in frame are parsed*/ ps_dec->u1_first_slice_in_stream = 0; return ERROR_IN_LAST_SLICE_OF_PIC; } if(ps_dec->ps_dec_err_status->u1_err_flag & REJECT_CUR_PIC) { ih264d_err_pic_dispbuf_mgr(ps_dec); return ERROR_NEW_FRAME_EXPECTED; } if(ret != OK) return ret; i1_is_end_of_poc = 0; } if(u1_field_pic_flag) { ps_dec->u2_prv_frame_num = u2_frame_num; } if(ps_cur_slice->u1_mmco_equalto5) { WORD32 i4_temp_poc; WORD32 i4_top_field_order_poc, i4_bot_field_order_poc; WORD64 i8_result; if(!ps_cur_slice->u1_field_pic_flag) // or a complementary field pair { i4_top_field_order_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; i4_bot_field_order_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; i4_temp_poc = MIN(i4_top_field_order_poc, i4_bot_field_order_poc); } else if(!ps_cur_slice->u1_bottom_field_flag) i4_temp_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; else i4_temp_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; i8_result = (WORD64) i4_temp_poc - ps_dec->ps_cur_pic->i4_top_field_order_cnt; if(IS_OUT_OF_RANGE_S32(i8_result)) { return ERROR_INV_POC; } ps_dec->ps_cur_pic->i4_top_field_order_cnt = (WORD32) i8_result; i8_result = (WORD64) i4_temp_poc - ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; if(IS_OUT_OF_RANGE_S32(i8_result)) { return ERROR_INV_POC; } ps_dec->ps_cur_pic->i4_bottom_field_order_cnt = (WORD32) i8_result; ps_dec->ps_cur_pic->i4_poc = i4_temp_poc; ps_dec->ps_cur_pic->i4_avg_poc = i4_temp_poc; } if(ps_dec->u4_first_slice_in_pic) { ret = isvcd_decode_pic_order_cnt(u1_is_idr_slice, u2_frame_num, &ps_dec->s_prev_pic_poc, &s_tmp_poc, ps_cur_slice, ps_pps, u1_nal_ref_idc, u1_bottom_field_flag, u1_field_pic_flag, &i4_poc, ps_dec); if(ret != OK) return ret; /* Display seq no calculations */ if(i4_poc >= ps_dec->i4_max_poc) ps_dec->i4_max_poc = i4_poc; /* IDR Picture or POC wrap around */ if(i4_poc == 0) { WORD64 i8_temp; i8_temp = (WORD64) ps_dec->i4_prev_max_display_seq + ps_dec->i4_max_poc + ps_dec->u1_max_dec_frame_buffering + 1; /*If i4_prev_max_display_seq overflows integer range, reset it */ ps_dec->i4_prev_max_display_seq = IS_OUT_OF_RANGE_S32(i8_temp) ? 0 : i8_temp; ps_dec->i4_max_poc = 0; } } /* Increment only if the current slice has atleast 1 more MB */ if(ps_dec->u4_first_slice_in_pic == 0 && (ps_dec->ps_parse_cur_slice->u4_first_mb_in_slice < (UWORD32) (ps_dec->u2_total_mbs_coded >> ps_dec->ps_cur_slice->u1_mbaff_frame_flag))) { ps_dec->ps_parse_cur_slice++; ps_dec->u2_cur_slice_num++; // in the case of single core increment ps_decode_cur_slice if(ps_dec->u1_separate_parse == 0) { ps_dec->ps_decode_cur_slice++; } } ps_dec->u1_slice_header_done = 0; /*--------------------------------------------------------------------*/ /* Copy the values read from the bitstream to the slice header and then*/ /* If the slice is first slice in picture, then do Start of Picture */ /* processing. */ /*--------------------------------------------------------------------*/ ps_cur_slice->i4_delta_pic_order_cnt[0] = i_delta_poc[0]; ps_cur_slice->i4_delta_pic_order_cnt[1] = i_delta_poc[1]; ps_cur_slice->u4_idr_pic_id = u4_idr_pic_id; ps_cur_slice->u2_first_mb_in_slice = u2_first_mb_in_slice; ps_cur_slice->u1_field_pic_flag = u1_field_pic_flag; ps_cur_slice->u1_bottom_field_flag = u1_bottom_field_flag; ps_cur_slice->u1_slice_type = u1_slice_type; ps_cur_slice->i4_pic_order_cnt_lsb = s_tmp_poc.i4_pic_order_cnt_lsb; ps_cur_slice->u1_nal_unit_type = u1_nal_unit_type; ps_cur_slice->u1_redundant_pic_cnt = u1_redundant_pic_cnt; ps_cur_slice->u1_nal_ref_idc = u1_nal_ref_idc; ps_cur_slice->u1_pic_order_cnt_type = u1_pic_order_cnt_type; if(ps_seq->u1_frame_mbs_only_flag) ps_cur_slice->u1_direct_8x8_inference_flag = ps_seq->u1_direct_8x8_inference_flag; else ps_cur_slice->u1_direct_8x8_inference_flag = 1; if(0 == ps_svc_lyr_dec->ps_nal_svc_ext->u1_quality_id) { if(B_SLICE == u1_slice_type) { ps_cur_slice->u1_direct_spatial_mv_pred_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: direct_spatial_mv_pred_flag", ps_cur_slice->u1_direct_spatial_mv_pred_flag); if(ps_cur_slice->u1_direct_spatial_mv_pred_flag) ps_cur_slice->pf_decodeDirect = isvcd_decode_spatial_direct; else ps_cur_slice->pf_decodeDirect = ih264d_decode_temporal_direct; if(!((ps_seq->u1_mb_aff_flag) && (!u1_field_pic_flag))) ps_dec->pf_mvpred = ih264d_mvpred_nonmbaffB; } else { if(!((ps_seq->u1_mb_aff_flag) && (!u1_field_pic_flag))) /*check if this is valid here */ ps_dec->pf_mvpred = ih264d_mvpred_nonmbaff; } } if(ps_dec->u4_first_slice_in_pic) { if(u2_first_mb_in_slice == 0) { ret = isvcd_start_of_pic(ps_svc_lyr_dec, i4_poc, &s_tmp_poc, u2_frame_num, ps_pps); if(ret != OK) return ret; /*inter layer buffer intialization */ ps_svc_lyr_dec->ps_inter_lyr_mb_prms_cur_mb = ps_svc_lyr_dec->ps_inter_lyr_mb_prms_frm_start; ps_svc_lyr_dec->ps_il_pred_mv_bank_buf_cur_mb = ps_svc_lyr_dec->ps_il_pred_mv_bank_buf_base; } ps_dec->u4_output_present = 0; { ih264d_get_next_display_field(ps_dec, ps_dec->ps_out_buffer, &(ps_dec->s_disp_op)); /* If error code is non-zero then there is no buffer available for display, hence avoid format conversion */ if(0 != ps_dec->s_disp_op.u4_error_code) { ps_dec->u4_output_present = 0; ps_dec->u4_fmt_conv_cur_row = ps_dec->s_disp_frame_info.u4_y_ht; } else ps_dec->u4_output_present = 1; } ret = isvcd_parse_interlayer_resamp_func_init(ps_svc_lyr_dec, u2_first_mb_in_slice); if(ret != OK) { return ERROR_CORRUPTED_SLICE; } if((ps_dec->u1_separate_parse == 1) && (ps_svc_lyr_dec->u1_layer_identifier == TARGET_LAYER) && (ps_svc_lyr_dec->u1_res_init_done == 1)) { if(ps_dec->u4_dec_thread_created == 0) { ithread_create(ps_dec->pv_dec_thread_handle, NULL, (void *) isvcd_decode_picture_thread, (void *) ps_dec); ps_dec->u4_dec_thread_created = 1; } #ifdef KEEP_THREADS_ACTIVE ret = ithread_mutex_lock(ps_dec->apv_proc_start_mutex[0]); RETURN_IF((ret != IV_SUCCESS), ret); ps_dec->ai4_process_start[0] = PROC_START; ret = ithread_cond_signal(ps_dec->apv_proc_start_condition[0]); RETURN_IF((ret != IV_SUCCESS), ret); ret = ithread_mutex_unlock(ps_dec->apv_proc_start_mutex[0]); RETURN_IF((ret != IV_SUCCESS), ret); #endif #ifdef KEEP_THREADS_ACTIVE if(ps_dec->u4_bs_deblk_thread_created) { ret = ithread_mutex_lock(ps_dec->apv_proc_start_mutex[1]); RETURN_IF((ret != IV_SUCCESS), ret); ps_dec->ai4_process_start[1] = PROC_START; ret = ithread_cond_signal(ps_dec->apv_proc_start_condition[1]); RETURN_IF((ret != IV_SUCCESS), ret); ret = ithread_mutex_unlock(ps_dec->apv_proc_start_mutex[1]); RETURN_IF((ret != IV_SUCCESS), ret); } #endif } } /* INITIALIZATION of fn ptrs for MC and formMbPartInfo functions */ { UWORD8 uc_nofield_nombaff; uc_nofield_nombaff = ((ps_dec->ps_cur_slice->u1_field_pic_flag == 0) && (ps_dec->ps_cur_slice->u1_mbaff_frame_flag == 0) && (u1_slice_type != B_SLICE) && (ps_dec->ps_cur_pps->u1_wted_pred_flag == 0)); /* Initialise MC and formMbPartInfo fn ptrs one time based on profile_idc */ if(uc_nofield_nombaff) { ps_dec->p_form_mb_part_info = ih264d_form_mb_part_info_bp; ps_dec->p_motion_compensate = ih264d_motion_compensate_bp; } else { ps_dec->p_form_mb_part_info = ih264d_form_mb_part_info_mp; ps_dec->p_motion_compensate = ih264d_motion_compensate_mp; } } /* * Decide whether to decode the current picture or not */ { dec_err_status_t *ps_err = ps_dec->ps_dec_err_status; if(ps_err->u4_frm_sei_sync == u2_frame_num) { ps_err->u1_err_flag = ACCEPT_ALL_PICS; ps_err->u4_frm_sei_sync = SYNC_FRM_DEFAULT; } ps_err->u4_cur_frm = u2_frame_num; } /* Decision for decoding if the picture is to be skipped */ { WORD32 i4_skip_b_pic, i4_skip_p_pic; i4_skip_b_pic = (ps_dec->u4_skip_frm_mask & B_SLC_BIT) && (B_SLICE == u1_slice_type) && (0 == u1_nal_ref_idc); i4_skip_p_pic = (ps_dec->u4_skip_frm_mask & P_SLC_BIT) && (P_SLICE == u1_slice_type) && (0 == u1_nal_ref_idc); /**************************************************************/ /* Skip the B picture if skip mask is set for B picture and */ /* Current B picture is a non reference B picture or there is */ /* no user for reference B picture */ /**************************************************************/ if(i4_skip_b_pic) { ps_dec->ps_cur_pic->u4_pack_slc_typ |= B_SLC_BIT; /* Don't decode the picture in SKIP-B mode if that picture is B */ /* and also it is not to be used as a reference picture */ ps_dec->u1_last_pic_not_decoded = 1; return OK; } /**************************************************************/ /* Skip the P picture if skip mask is set for P picture and */ /* Current P picture is a non reference P picture or there is */ /* no user for reference P picture */ /**************************************************************/ if(i4_skip_p_pic) { ps_dec->ps_cur_pic->u4_pack_slc_typ |= P_SLC_BIT; /* Don't decode the picture in SKIP-P mode if that picture is P */ /* and also it is not to be used as a reference picture */ ps_dec->u1_last_pic_not_decoded = 1; return OK; } } { UWORD16 u2_mb_x, u2_mb_y; ps_dec->i4_submb_ofst = ((u2_first_mb_in_slice << ps_cur_slice->u1_mbaff_frame_flag) * SUB_BLK_SIZE) - SUB_BLK_SIZE; if(u2_first_mb_in_slice) { UWORD8 u1_mb_aff; UWORD8 u1_field_pic; UWORD16 u2_frm_wd_in_mbs; u2_frm_wd_in_mbs = ps_seq->u2_frm_wd_in_mbs; u1_mb_aff = ps_cur_slice->u1_mbaff_frame_flag; u1_field_pic = ps_cur_slice->u1_field_pic_flag; { UWORD32 x_offset; UWORD32 y_offset; UWORD32 u4_frame_stride; tfr_ctxt_t *ps_trns_addr; // = &ps_dec->s_tran_addrecon_parse; if(ps_dec->u1_separate_parse) { ps_trns_addr = &ps_dec->s_tran_addrecon_parse; } else { ps_trns_addr = &ps_dec->s_tran_addrecon; } u2_mb_x = MOD(u2_first_mb_in_slice, u2_frm_wd_in_mbs); u2_mb_y = DIV(u2_first_mb_in_slice, u2_frm_wd_in_mbs); u2_mb_y <<= u1_mb_aff; if((u2_mb_x > u2_frm_wd_in_mbs - 1) || (u2_mb_y > ps_dec->u2_frm_ht_in_mbs - 1)) { return ERROR_CORRUPTED_SLICE; } u4_frame_stride = ps_dec->u2_frm_wd_y << u1_field_pic; x_offset = u2_mb_x << 4; y_offset = (u2_mb_y * u4_frame_stride) << 4; ps_trns_addr->pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1 + x_offset + y_offset; u4_frame_stride = ps_dec->u2_frm_wd_uv << u1_field_pic; x_offset >>= 1; y_offset = (u2_mb_y * u4_frame_stride) << 3; x_offset *= YUV420SP_FACTOR; ps_trns_addr->pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2 + x_offset + y_offset; ps_trns_addr->pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3 + x_offset + y_offset; ps_trns_addr->pu1_mb_y = ps_trns_addr->pu1_dest_y; ps_trns_addr->pu1_mb_u = ps_trns_addr->pu1_dest_u; ps_trns_addr->pu1_mb_v = ps_trns_addr->pu1_dest_v; // assign the deblock structure pointers to start of slice if(ps_dec->u1_separate_parse == 1) { ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic + (u2_first_mb_in_slice << u1_mb_aff); } else { ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic + (u2_first_mb_in_slice << u1_mb_aff); } ps_dec->u2_cur_mb_addr = (u2_first_mb_in_slice << u1_mb_aff); ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv + ((u2_first_mb_in_slice << u1_mb_aff) << 4); } } else { tfr_ctxt_t *ps_trns_addr; if(ps_dec->u1_separate_parse) { ps_trns_addr = &ps_dec->s_tran_addrecon_parse; } else { ps_trns_addr = &ps_dec->s_tran_addrecon; } u2_mb_x = 0xffff; u2_mb_y = 0; // assign the deblock structure pointers to start of slice ps_dec->u2_cur_mb_addr = 0; ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic; ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv; ps_trns_addr->pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1; ps_trns_addr->pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2; ps_trns_addr->pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3; ps_trns_addr->pu1_mb_y = ps_trns_addr->pu1_dest_y; ps_trns_addr->pu1_mb_u = ps_trns_addr->pu1_dest_u; ps_trns_addr->pu1_mb_v = ps_trns_addr->pu1_dest_v; } ps_dec->ps_part = ps_dec->ps_parse_part_params; ps_dec->u2_mbx = (MOD(u2_first_mb_in_slice - 1, ps_seq->u2_frm_wd_in_mbs)); ps_dec->u2_mby = (DIV(u2_first_mb_in_slice - 1, ps_seq->u2_frm_wd_in_mbs)); ps_dec->u2_mby <<= ps_cur_slice->u1_mbaff_frame_flag; ps_dec->i2_prev_slice_mbx = ps_dec->u2_mbx; ps_dec->i2_prev_slice_mby = ps_dec->u2_mby; } /* RBSP stop bit is used for CABAC decoding*/ ps_bitstrm->u4_max_ofst += ps_dec->ps_cur_pps->u1_entropy_coding_mode; ps_dec->u1_B = (u1_slice_type == B_SLICE); ps_dec->u4_next_mb_skip = 0; ps_dec->ps_parse_cur_slice->u4_first_mb_in_slice = ps_dec->ps_cur_slice->u2_first_mb_in_slice; ps_dec->ps_parse_cur_slice->slice_type = ps_dec->ps_cur_slice->u1_slice_type; ps_dec->u4_start_recon_deblk = 1; { WORD32 num_entries; WORD32 size; UWORD8 *pu1_buf; num_entries = MAX_FRAMES; if((1 >= ps_dec->ps_cur_sps->u1_num_ref_frames) && (0 == ps_dec->i4_display_delay)) { num_entries = 1; } num_entries = ((2 * num_entries) + 1); num_entries *= 2; size = num_entries * sizeof(void *); size += PAD_MAP_IDX_POC * sizeof(void *); pu1_buf = (UWORD8 *) ps_dec->pv_map_ref_idx_to_poc_buf; pu1_buf += size * ps_dec->u2_cur_slice_num; ps_dec->ps_parse_cur_slice->ppv_map_ref_idx_to_poc = (void *) pu1_buf; } if(ps_dec->u1_separate_parse) { ps_dec->ps_parse_cur_slice->pv_tu_coeff_data_start = ps_dec->pv_parse_tu_coeff_data; } else { ps_dec->pv_proc_tu_coeff_data = ps_dec->pv_parse_tu_coeff_data; } ret = ih264d_fix_error_in_dpb(ps_dec); if(ret < 0) return ERROR_DBP_MANAGER_T; /*Default initializing default values for some parameters*/ ps_svc_slice_params->u1_slice_skip_flag = 0; ps_svc_slice_params->u1_adaptive_base_mode_flag = 0; ps_svc_slice_params->u1_default_base_mode_flag = 0; ps_svc_slice_params->u1_adaptive_motion_prediction_flag = 0; ps_svc_slice_params->u1_default_motion_prediction_flag = 0; ps_svc_slice_params->u1_adaptive_residual_prediction_flag = 0; ps_svc_slice_params->u1_default_residual_prediction_flag = 0; if(u1_slice_type == I_SLICE) { ps_dec->ps_cur_pic->u4_pack_slc_typ |= I_SLC_BIT; ret = isvcd_parse_eislice(ps_svc_lyr_dec, u2_first_mb_in_slice); ps_dec->u1_pr_sl_type = u1_slice_type; if(ps_dec->i4_pic_type != B_SLICE && ps_dec->i4_pic_type != P_SLICE) ps_dec->i4_pic_type = I_SLICE; } else if(u1_slice_type == P_SLICE) { ps_dec->ps_cur_pic->u4_pack_slc_typ |= P_SLC_BIT; ret = isvcd_parse_epslice(ps_svc_lyr_dec, u2_first_mb_in_slice); ps_dec->u1_pr_sl_type = u1_slice_type; if(ps_dec->i4_pic_type != B_SLICE) ps_dec->i4_pic_type = P_SLICE; } else if(u1_slice_type == B_SLICE) { ps_dec->ps_cur_pic->u4_pack_slc_typ |= B_SLC_BIT; ret = isvcd_parse_ebslice(ps_svc_lyr_dec, u2_first_mb_in_slice); ps_dec->u1_pr_sl_type = u1_slice_type; ps_dec->i4_pic_type = B_SLICE; } else return ERROR_INV_SLC_TYPE_T; if(ps_dec->u1_slice_header_done) { /* set to zero to indicate a valid slice has been decoded */ ps_dec->u1_first_slice_in_stream = 0; } if(ret != OK) return ret; if(u1_nal_ref_idc != 0) { if(!ps_dec->ps_dpb_cmds->u1_dpb_commands_read) { memcpy((void *) ps_dec->ps_dpb_cmds, (void *) (&(ps_dec->s_dpb_cmds_scratch)), sizeof(dpb_commands_t)); } } /* storing last Mb X and MbY of the slice */ ps_dec->i2_prev_slice_mbx = ps_dec->u2_mbx; ps_dec->i2_prev_slice_mby = ps_dec->u2_mby; /* End of Picture detection */ if(ps_dec->u2_total_mbs_coded >= (ps_seq->u2_max_mb_addr + 1)) { ps_dec->u1_pic_decode_done = 1; } { dec_err_status_t *ps_err = ps_dec->ps_dec_err_status; if((ps_err->u1_err_flag & REJECT_PB_PICS) && (ps_err->u1_cur_pic_type == PIC_TYPE_I)) { ps_err->u1_err_flag = ACCEPT_ALL_PICS; } } PRINT_BIN_BIT_RATIO(ps_dec) return ret; } /*! ************************************************************************** * \if Function name : isvcd_set_default_slice_header_ext \endif * * \brief * sets the default values for the svc slice header attr * * \return * 0 on Success and Error code otherwise ************************************************************************** */ WORD32 isvcd_set_default_slice_header_ext(svc_dec_lyr_struct_t *ps_svc_lyr_dec) { dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; WORD32 i_status = OK; dec_pic_params_t *ps_pps = ps_dec->ps_cur_pps; dec_seq_params_t *ps_seq; dec_svc_seq_params_t *ps_subset_seq; dec_slice_svc_ext_params_t *ps_svc_slice_params = NULL; dec_subset_seq_params_t *ps_sps_svc_ext = NULL; ps_seq = ps_pps->ps_sps; ps_seq += MAX_NUM_SEQ_PARAMS; ps_subset_seq = &ps_svc_lyr_dec->ps_subset_sps[MAX_NUM_SEQ_PARAMS + ps_seq->u1_seq_parameter_set_id]; ps_sps_svc_ext = &ps_subset_seq->s_sps_svc_ext; ps_svc_slice_params = &ps_svc_lyr_dec->s_svc_slice_params; if(0 == ps_svc_lyr_dec->ps_nal_svc_ext->u1_quality_id) { ps_svc_slice_params->u1_ref_layer_chroma_phase_y_plus1 = ps_sps_svc_ext->u1_seq_ref_layer_chroma_phase_y_plus1; ps_svc_slice_params->u1_ref_layer_chroma_phase_x_plus1_flag = ps_sps_svc_ext->u1_seq_ref_layer_chroma_phase_x_plus1_flag; } ps_svc_slice_params->u4_ref_layer_dq_id = UINT32_MAX; ps_svc_slice_params->u4_disable_inter_layer_deblk_filter_idc = 0; ps_svc_slice_params->u1_scan_idx_start = 0; ps_svc_slice_params->u1_scan_idx_end = 15; ps_svc_slice_params->i4_inter_layer_slice_alpha_c0_offset_div2 = 0; ps_svc_slice_params->i4_inter_layer_slice_beta_offset_div2 = 0; ps_svc_slice_params->u1_constrained_intra_resampling_flag = 0; return i_status; } /*! ************************************************************************** * \if Function name : isvcd_parse_slice_header \endif * * \brief * parses the svc slice header attr * * \return * 0 on Success and Error code otherwise ************************************************************************** */ WORD32 isvcd_parse_slice_header(svc_dec_lyr_struct_t *ps_svc_lyr_dec) { dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; dec_pic_params_t *ps_pps = ps_dec->ps_cur_pps; dec_bit_stream_t *ps_bitstrm = ps_dec->ps_bitstrm; dec_seq_params_t *ps_seq; dec_svc_seq_params_t *ps_subset_seq; dec_slice_svc_ext_params_t *ps_svc_slice_params = NULL; dec_subset_seq_params_t *ps_sps_svc_ext = NULL; svc_dec_ctxt_t *ps_svcd_ctxt; UWORD32 *pu4_bitstrm_buf = ps_dec->ps_bitstrm->pu4_buffer; UWORD32 *pu4_bitstrm_ofst = &ps_dec->ps_bitstrm->u4_ofst; ps_svcd_ctxt = ps_svc_lyr_dec->ps_svcd_ctxt; ps_seq = ps_pps->ps_sps; ps_seq += MAX_NUM_SEQ_PARAMS; ps_subset_seq = &ps_svc_lyr_dec->ps_subset_sps[MAX_NUM_SEQ_PARAMS + ps_seq->u1_seq_parameter_set_id]; ps_sps_svc_ext = &ps_subset_seq->s_sps_svc_ext; ps_svc_slice_params = &ps_svc_lyr_dec->s_svc_slice_params; if(!ps_svc_lyr_dec->ps_nal_svc_ext->u1_no_inter_layer_pred_flag && (0 == ps_svc_lyr_dec->ps_nal_svc_ext->u1_quality_id)) { ps_svc_slice_params->u4_ref_layer_dq_id = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: u4_ref_layer_dq_id", ps_svc_slice_params->u4_ref_layer_dq_id); if(ps_svc_slice_params->u4_ref_layer_dq_id > MAX_REF_DEP_ID) { return ERROR_INV_SLICE_HDR_T; } /* Reference layer id update is taken care during resolution init */ /* ps_svc_lyr_dec->u1_ref_layer_id = ps_svc_slice_params->u4_ref_layer_dq_id >> 4; if(ps_svc_lyr_dec->u1_ref_layer_id >= ps_svc_lyr_dec->u1_layer_id) { return ERROR_INV_SLICE_HDR_T; } */ ps_svc_lyr_dec->ps_dec_svc_ref_layer = &ps_svcd_ctxt->ps_svc_dec_lyr[ps_svc_lyr_dec->u1_ref_layer_id]; if(ps_sps_svc_ext->u1_inter_layer_deblocking_filter_control_present_flag) { ps_svc_slice_params->u4_disable_inter_layer_deblk_filter_idc = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: u4_disable_inter_layer_deblk_filter_idc", ps_svc_slice_params->u4_disable_inter_layer_deblk_filter_idc); if(ps_svc_slice_params->u4_disable_inter_layer_deblk_filter_idc > 6) { return ERROR_INV_SLICE_HDR_T; } if(1 != ps_svc_slice_params->u4_disable_inter_layer_deblk_filter_idc) { ps_svc_slice_params->i4_inter_layer_slice_alpha_c0_offset_div2 = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: i4_inter_layer_slice_alpha_c0_offset_div2", ps_svc_slice_params->i4_inter_layer_slice_alpha_c0_offset_div2); if(ps_svc_slice_params->i4_inter_layer_slice_alpha_c0_offset_div2 > 6 || ps_svc_slice_params->i4_inter_layer_slice_alpha_c0_offset_div2 < -6) { return ERROR_INV_SLICE_HDR_T; } ps_svc_slice_params->i4_inter_layer_slice_beta_offset_div2 = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: i4_inter_layer_slice_beta_offset_div2", ps_svc_slice_params->i4_inter_layer_slice_beta_offset_div2); if(ps_svc_slice_params->i4_inter_layer_slice_beta_offset_div2 > 6 || ps_svc_slice_params->i4_inter_layer_slice_beta_offset_div2 < -6) { return ERROR_INV_SLICE_HDR_T; } } } ps_svc_slice_params->u1_constrained_intra_resampling_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_constrained_intra_resampling_flag", ps_svc_slice_params->u1_constrained_intra_resampling_flag); ps_svc_lyr_dec->s_res_prms.i1_constrained_intra_rsmpl_flag = ps_svc_lyr_dec->s_svc_slice_params.u1_constrained_intra_resampling_flag; isvcd_intra_resamp_res_init_update_flags(ps_svc_lyr_dec); if(2 == ps_sps_svc_ext->u1_extended_spatial_scalability_idc) { /* ChromaArrayType = i4_chroma_format_idc if separate_colour_plane_flag * = 0 for all chroma format except 4:4:4 */ if(ps_dec->ps_cur_sps->i4_chroma_format_idc >= 0) { ps_svc_slice_params->u1_ref_layer_chroma_phase_x_plus1_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_ref_layer_chroma_phase_x_plus1_flag", ps_svc_slice_params->u1_ref_layer_chroma_phase_x_plus1_flag); ps_svc_slice_params->u1_ref_layer_chroma_phase_y_plus1 = ih264d_get_bits_h264(ps_bitstrm, 2); COPYTHECONTEXT("Slice Header SVC ext: u1_ref_layer_chroma_phase_y_plus1", ps_svc_slice_params->u1_ref_layer_chroma_phase_y_plus1); if(ps_svc_slice_params->u1_ref_layer_chroma_phase_y_plus1 > 2) { return ERROR_INV_SLICE_HDR_T; } } else { if(0 == ps_svc_lyr_dec->ps_nal_svc_ext->u1_quality_id) { ps_svc_slice_params->u1_ref_layer_chroma_phase_y_plus1 = ps_sps_svc_ext->u1_seq_ref_layer_chroma_phase_y_plus1; } } ps_svc_slice_params->i4_scaled_ref_layer_left_offset = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: i4_scaled_ref_layer_left_offset", ps_svc_slice_params->i4_scaled_ref_layer_left_offset); if(ps_svc_slice_params->i4_scaled_ref_layer_left_offset != 0) { return ERROR_INV_SLICE_HDR_T; } if(ps_svc_slice_params->i4_scaled_ref_layer_left_offset >= MAX_SCLD_REF_LAYER_OFFSET || ps_svc_slice_params->i4_scaled_ref_layer_left_offset < MIN_SCLD_REF_LAYER_OFFSET) { return ERROR_INV_SLICE_HDR_T; } ps_svc_slice_params->i4_scaled_ref_layer_top_offset = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: i4_scaled_ref_layer_top_offset", ps_svc_slice_params->i4_scaled_ref_layer_top_offset); if(ps_svc_slice_params->i4_scaled_ref_layer_top_offset != 0) { return ERROR_INV_SLICE_HDR_T; } if(ps_svc_slice_params->i4_scaled_ref_layer_top_offset >= MAX_SCLD_REF_LAYER_OFFSET || ps_svc_slice_params->i4_scaled_ref_layer_top_offset < MIN_SCLD_REF_LAYER_OFFSET) { return ERROR_INV_SLICE_HDR_T; } ps_svc_slice_params->i4_scaled_ref_layer_right_offset = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: i4_scaled_ref_layer_right_offset", ps_svc_slice_params->i4_scaled_ref_layer_right_offset); if(ps_svc_slice_params->i4_scaled_ref_layer_right_offset >= MAX_SCLD_REF_LAYER_OFFSET || ps_svc_slice_params->i4_scaled_ref_layer_right_offset < MIN_SCLD_REF_LAYER_OFFSET) { return ERROR_INV_SLICE_HDR_T; } ps_svc_slice_params->i4_scaled_ref_layer_bottom_offset = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: i4_scaled_ref_layer_bottom_offset", ps_svc_slice_params->i4_scaled_ref_layer_bottom_offset); if(ps_svc_slice_params->i4_scaled_ref_layer_bottom_offset >= MAX_SCLD_REF_LAYER_OFFSET || ps_svc_slice_params->i4_scaled_ref_layer_bottom_offset < MIN_SCLD_REF_LAYER_OFFSET) { return ERROR_INV_SLICE_HDR_T; } } else { ps_svc_slice_params->i4_scaled_ref_layer_left_offset = ps_sps_svc_ext->i4_seq_scaled_ref_layer_left_offset; ps_svc_slice_params->i4_scaled_ref_layer_top_offset = ps_sps_svc_ext->i4_seq_scaled_ref_layer_top_offset; ps_svc_slice_params->i4_scaled_ref_layer_right_offset = ps_sps_svc_ext->i4_seq_scaled_ref_layer_right_offset; ps_svc_slice_params->i4_scaled_ref_layer_bottom_offset = ps_sps_svc_ext->i4_seq_scaled_ref_layer_bottom_offset; } } if(!ps_svc_lyr_dec->ps_nal_svc_ext->u1_no_inter_layer_pred_flag) { ps_svc_slice_params->u1_slice_skip_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_slice_skip_flag", ps_svc_slice_params->u1_slice_skip_flag); if(ps_svc_slice_params->u1_slice_skip_flag) { ps_svc_slice_params->u4_num_mbs_in_slice_minus1 = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("Slice Header SVC ext: u4_num_mbs_in_slice_minus1", ps_svc_slice_params->u4_num_mbs_in_slice_minus1); } else { ps_svc_slice_params->u1_adaptive_base_mode_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_adaptive_base_mode_flag", ps_svc_slice_params->u1_adaptive_base_mode_flag); if(!ps_svc_slice_params->u1_adaptive_base_mode_flag) { ps_svc_slice_params->u1_default_base_mode_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_default_base_mode_flag", ps_svc_slice_params->u1_default_base_mode_flag); } if(!ps_svc_slice_params->u1_default_base_mode_flag) { ps_svc_slice_params->u1_adaptive_motion_prediction_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_adaptive_motion_prediction_flag", ps_svc_slice_params->u1_adaptive_motion_prediction_flag); if(!ps_svc_slice_params->u1_adaptive_motion_prediction_flag) { ps_svc_slice_params->u1_default_motion_prediction_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_default_motion_prediction_flag", ps_svc_slice_params->u1_default_motion_prediction_flag); } } ps_svc_slice_params->u1_adaptive_residual_prediction_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_adaptive_residual_prediction_flag", ps_svc_slice_params->u1_adaptive_residual_prediction_flag); if(!ps_svc_slice_params->u1_adaptive_residual_prediction_flag) { ps_svc_slice_params->u1_default_residual_prediction_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_default_residual_prediction_flag", ps_svc_slice_params->u1_default_residual_prediction_flag); } } if(ps_sps_svc_ext->u1_adaptive_tcoeff_level_prediction_flag) { ps_svc_slice_params->u1_tcoeff_level_prediction_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("Slice Header SVC ext: u1_tcoeff_level_prediction_flag", ps_svc_slice_params->u1_tcoeff_level_prediction_flag); if(ps_svc_slice_params->u1_tcoeff_level_prediction_flag != 0) { return ERROR_INV_SPS_PPS_T; } } } if(!ps_sps_svc_ext->u1_slice_header_restriction_flag && !ps_svc_slice_params->u1_slice_skip_flag) { ps_svc_slice_params->u1_scan_idx_start = ih264d_get_bits_h264(ps_bitstrm, 4); COPYTHECONTEXT("Slice Header SVC ext: u1_scan_idx_start", ps_svc_slice_params->u1_scan_idx_start); ps_svc_slice_params->u1_scan_idx_end = ih264d_get_bits_h264(ps_bitstrm, 4); COPYTHECONTEXT("Slice Header SVC ext: u1_scan_idx_end", ps_svc_slice_params->u1_scan_idx_end); if(0 != ps_svc_slice_params->u1_scan_idx_start && 15 != ps_svc_slice_params->u1_scan_idx_end) return ERROR_SVC_INV_SCAN_IDX; } return OK; } /*! ************************************************************************** * \if Function name : DecodeSlice \endif * * \brief * Parses a slice * * \return * 0 on Success and Error code otherwise ************************************************************************** */ WORD32 isvcd_parse_decode_slice(UWORD8 u1_is_idr_slice, UWORD8 u1_nal_ref_idc, svc_dec_lyr_struct_t *ps_svc_lyr_dec /* SVC Decoder parameters */ ) { dec_struct_t *ps_dec = &ps_svc_lyr_dec->s_dec; dec_bit_stream_t *ps_bitstrm = ps_dec->ps_bitstrm; dec_pic_params_t *ps_pps; dec_seq_params_t *ps_seq; dec_svc_seq_params_t *ps_subset_seq; dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice; pocstruct_t s_tmp_poc = {0}; WORD32 i_delta_poc[2] = {0}; WORD32 i4_poc = 0; UWORD16 u2_first_mb_in_slice, u2_frame_num; UWORD8 u1_field_pic_flag, u1_redundant_pic_cnt = 0, u1_slice_type; UWORD32 u4_idr_pic_id = 0; UWORD8 u1_bottom_field_flag, u1_pic_order_cnt_type; UWORD8 u1_nal_unit_type; UWORD32 *pu4_bitstrm_buf = ps_bitstrm->pu4_buffer; UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; WORD8 i1_is_end_of_poc; WORD32 ret; WORD32 prev_slice_err, num_mb_skipped; UWORD8 u1_mbaff; pocstruct_t *ps_cur_poc; UWORD32 u4_temp; WORD32 i_temp; svc_dec_ctxt_t *psvcd_dec_ctxt; dec_struct_t *ps_dec_cur_lyr_minus_1; svc_dec_lyr_struct_t *ps_svc_cur_lyr_dec_minus_1; /* read FirstMbInSlice and slice type*/ ps_dec->ps_dpb_cmds->u1_dpb_commands_read_slc = 0; u2_first_mb_in_slice = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u2_first_mb_in_slice > (ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs)) { return ERROR_CORRUPTED_SLICE; } /*we currently don not support ASO*/ if(((u2_first_mb_in_slice << ps_cur_slice->u1_mbaff_frame_flag) <= ps_dec->u2_cur_mb_addr) && (ps_dec->u4_first_slice_in_pic == 0)) { return ERROR_CORRUPTED_SLICE; } if(ps_dec->u4_first_slice_in_pic == 1) { if(u2_first_mb_in_slice != 0) { return ERROR_CORRUPTED_SLICE; } } COPYTHECONTEXT("SH: first_mb_in_slice", u2_first_mb_in_slice); u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_temp > 9) return ERROR_INV_SLC_TYPE_T; u1_slice_type = u4_temp; COPYTHECONTEXT("SH: slice_type", (u1_slice_type)); /* Find Out the Slice Type is 5 to 9 or not then Set the Flag */ /* u1_sl_typ_5_9 = 1 .Which tells that all the slices in the Pic*/ /* will be of same type of current */ if(u1_slice_type > 4) { u1_slice_type -= 5; } u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_temp & MASK_ERR_PIC_SET_ID) return ERROR_INV_SLICE_HDR_T; /* discard slice if pic param is invalid */ COPYTHECONTEXT("SH: pic_parameter_set_id", u4_temp); ps_pps = &ps_dec->ps_pps[u4_temp]; if(FALSE == ps_pps->u1_is_valid) { return ERROR_INV_SLICE_HDR_T; } /* slices in a layer should have same PPS id*/ if(UINT32_MAX == ps_svc_lyr_dec->u4_pps_id_for_layer) { ps_svc_lyr_dec->u4_pps_id_for_layer = u4_temp; } else if(u4_temp != ps_svc_lyr_dec->u4_pps_id_for_layer) { return ERROR_INV_SLICE_HDR_T; } ps_seq = ps_pps->ps_sps; ps_dec->ps_cur_sps = ps_seq; ps_subset_seq = &ps_svc_lyr_dec->ps_subset_sps[ps_seq->u1_seq_parameter_set_id]; ps_svc_lyr_dec->ps_cur_subset_sps = ps_subset_seq; if(!ps_seq) return ERROR_INV_SLICE_HDR_T; if(FALSE == ps_seq->u1_is_valid) return ERROR_INV_SLICE_HDR_T; if(ps_seq->u1_mb_aff_flag) return ERROR_INV_SLICE_HDR_T; if(ps_seq->u1_level_idc > H264_LEVEL_4_2) return ERROR_INV_SLICE_HDR_T; if(!ps_seq->u1_frame_mbs_only_flag) return ERROR_INV_SLICE_HDR_T; if(OK != isvcd_verify_level(ps_seq->u1_level_idc)) return ERROR_INV_SLICE_HDR_T; if(ps_dec->u1_init_dec_flag == 1) { if(ps_dec->u2_frm_wd_in_mbs != ps_seq->u2_frm_wd_in_mbs) return ERROR_INV_SLICE_HDR_T; if(ps_dec->u2_frm_ht_in_mbs != ps_seq->u2_frm_ht_in_mbs) return ERROR_INV_SLICE_HDR_T; } if(ps_dec->u1_init_dec_flag == 1) { if(ps_dec->u2_disp_height != ps_subset_seq->u2_disp_height) return ERROR_INV_SLICE_HDR_T; if(ps_dec->u2_disp_width != ps_subset_seq->u2_disp_width) return ERROR_INV_SLICE_HDR_T; } if(ps_seq->u1_profile_idc == BASE_PROFILE_IDC) { if(ps_pps->u1_entropy_coding_mode != 0) { return ERROR_INV_SPS_PPS_T; } } ps_dec->i4_reorder_depth = ps_subset_seq->i4_reorder_depth; ps_dec->u2_disp_height = ps_subset_seq->u2_disp_height; ps_dec->u2_disp_width = ps_subset_seq->u2_disp_width; if(ps_svc_lyr_dec->u1_layer_id > 0) { psvcd_dec_ctxt = ps_svc_lyr_dec->ps_svcd_ctxt; ps_svc_cur_lyr_dec_minus_1 = &psvcd_dec_ctxt->ps_svc_dec_lyr[ps_svc_lyr_dec->u1_layer_id - 1]; ps_dec_cur_lyr_minus_1 = &ps_svc_cur_lyr_dec_minus_1->s_dec; if((ps_dec_cur_lyr_minus_1->u2_pic_wd > ps_subset_seq->u2_pic_wd) || (ps_dec_cur_lyr_minus_1->u2_pic_ht > ps_subset_seq->u2_pic_ht)) { return ERROR_CORRUPTED_SLICE; } } ps_dec->u2_pic_wd = ps_subset_seq->u2_pic_wd; ps_dec->u2_pic_ht = ps_subset_seq->u2_pic_ht; ps_dec->u4_total_mbs = ps_seq->u2_total_num_of_mbs << (1 - ps_seq->u1_frame_mbs_only_flag); /* Determining the Width and Height of Frame from that of Picture */ ps_dec->u2_frm_wd_y = ps_subset_seq->u2_frm_wd_y; ps_dec->u2_frm_ht_y = ps_subset_seq->u2_frm_ht_y; ps_dec->u2_frm_wd_uv = ps_subset_seq->u2_frm_wd_uv; ps_dec->u2_frm_ht_uv = ps_subset_seq->u2_frm_ht_uv; ps_dec->s_pad_mgr.u1_pad_len_y_v = ps_subset_seq->u1_pad_len_y_v; ps_dec->s_pad_mgr.u1_pad_len_cr_v = ps_subset_seq->u1_pad_len_cr_v; ps_dec->u2_frm_wd_in_mbs = ps_seq->u2_frm_wd_in_mbs; ps_dec->u2_frm_ht_in_mbs = ps_seq->u2_frm_ht_in_mbs; ps_dec->u2_crop_offset_y = ps_subset_seq->u2_crop_offset_y; ps_dec->u2_crop_offset_uv = ps_subset_seq->u2_crop_offset_uv; /* Get the frame num */ u2_frame_num = ih264d_get_bits_h264(ps_bitstrm, ps_seq->u1_bits_in_frm_num); COPYTHECONTEXT("SH: frame_num", u2_frame_num); if(!ps_dec->u1_first_slice_in_stream && ps_dec->u4_first_slice_in_pic) { pocstruct_t *ps_prev_poc = &ps_dec->s_prev_pic_poc; pocstruct_t *ps_cur_poc = &ps_dec->s_cur_pic_poc; ps_dec->u2_mbx = 0xffff; ps_dec->u2_mby = 0; if((0 == u1_is_idr_slice) && ps_cur_slice->u1_nal_ref_idc) ps_dec->u2_prev_ref_frame_num = ps_cur_slice->u2_frame_num; if(u1_is_idr_slice || ps_cur_slice->u1_mmco_equalto5) ps_dec->u2_prev_ref_frame_num = 0; if(ps_dec->ps_cur_sps->u1_gaps_in_frame_num_value_allowed_flag) { isvcd_decode_gaps_in_frame_num(ps_dec, u2_frame_num); } ps_prev_poc->i4_prev_frame_num_ofst = ps_cur_poc->i4_prev_frame_num_ofst; ps_prev_poc->u2_frame_num = ps_cur_poc->u2_frame_num; ps_prev_poc->u1_mmco_equalto5 = ps_cur_slice->u1_mmco_equalto5; if(ps_cur_slice->u1_nal_ref_idc) { ps_prev_poc->i4_pic_order_cnt_lsb = ps_cur_poc->i4_pic_order_cnt_lsb; ps_prev_poc->i4_pic_order_cnt_msb = ps_cur_poc->i4_pic_order_cnt_msb; ps_prev_poc->i4_delta_pic_order_cnt_bottom = ps_cur_poc->i4_delta_pic_order_cnt_bottom; ps_prev_poc->i4_delta_pic_order_cnt[0] = ps_cur_poc->i4_delta_pic_order_cnt[0]; ps_prev_poc->i4_delta_pic_order_cnt[1] = ps_cur_poc->i4_delta_pic_order_cnt[1]; ps_prev_poc->u1_bot_field = ps_cur_poc->u1_bot_field; } ps_dec->u2_total_mbs_coded = 0; } /* Get the field related flags */ if(!ps_seq->u1_frame_mbs_only_flag) { u1_field_pic_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("SH: field_pic_flag", u1_field_pic_flag); u1_bottom_field_flag = 0; if(u1_field_pic_flag) { ps_dec->pu1_inv_scan = (UWORD8 *) gau1_ih264d_inv_scan_fld; u1_bottom_field_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("SH: bottom_field_flag", u1_bottom_field_flag); } else { ps_dec->pu1_inv_scan = (UWORD8 *) gau1_ih264d_inv_scan; } } else { u1_field_pic_flag = 0; u1_bottom_field_flag = 0; ps_dec->pu1_inv_scan = (UWORD8 *) gau1_ih264d_inv_scan; } u1_nal_unit_type = SLICE_NAL; if(u1_is_idr_slice) { u1_nal_unit_type = IDR_SLICE_NAL; u4_idr_pic_id = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_idr_pic_id > 65535) return ERROR_INV_SLICE_HDR_T; COPYTHECONTEXT("SH: ", u4_idr_pic_id); } /* read delta pic order count information*/ i_delta_poc[0] = i_delta_poc[1] = 0; s_tmp_poc.i4_pic_order_cnt_lsb = 0; s_tmp_poc.i4_delta_pic_order_cnt_bottom = 0; u1_pic_order_cnt_type = ps_seq->u1_pic_order_cnt_type; if(u1_pic_order_cnt_type == 0) { i_temp = ih264d_get_bits_h264(ps_bitstrm, ps_seq->u1_log2_max_pic_order_cnt_lsb_minus); if(i_temp < 0 || i_temp >= ps_seq->i4_max_pic_order_cntLsb) return ERROR_INV_SLICE_HDR_T; s_tmp_poc.i4_pic_order_cnt_lsb = i_temp; COPYTHECONTEXT("SH: pic_order_cnt_lsb", s_tmp_poc.i4_pic_order_cnt_lsb); if((ps_pps->u1_pic_order_present_flag == 1) && (!u1_field_pic_flag)) { s_tmp_poc.i4_delta_pic_order_cnt_bottom = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("SH: delta_pic_order_cnt_bottom", s_tmp_poc.i4_delta_pic_order_cnt_bottom); } } s_tmp_poc.i4_delta_pic_order_cnt[0] = 0; s_tmp_poc.i4_delta_pic_order_cnt[1] = 0; if(u1_pic_order_cnt_type == 1 && (!ps_seq->u1_delta_pic_order_always_zero_flag)) { s_tmp_poc.i4_delta_pic_order_cnt[0] = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("SH: delta_pic_order_cnt[0]", s_tmp_poc.i4_delta_pic_order_cnt[0]); if(ps_pps->u1_pic_order_present_flag && !u1_field_pic_flag) { s_tmp_poc.i4_delta_pic_order_cnt[1] = ih264d_sev(pu4_bitstrm_ofst, pu4_bitstrm_buf); COPYTHECONTEXT("SH: delta_pic_order_cnt[1]", s_tmp_poc.i4_delta_pic_order_cnt[1]); } } if(ps_pps->u1_redundant_pic_cnt_present_flag) { u4_temp = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); if(u4_temp > MAX_REDUNDANT_PIC_CNT) return ERROR_INV_SLICE_HDR_T; u1_redundant_pic_cnt = u4_temp; COPYTHECONTEXT("SH: redundant_pic_cnt", u1_redundant_pic_cnt); } /*--------------------------------------------------------------------*/ /* Check if the slice is part of new picture */ /*--------------------------------------------------------------------*/ /* First slice of a picture is always considered as part of new picture */ i1_is_end_of_poc = 1; ps_dec->ps_dec_err_status->u1_err_flag &= MASK_REJECT_CUR_PIC; if(ps_dec->u4_first_slice_in_pic == 0) { i1_is_end_of_poc = ih264d_is_end_of_pic(u2_frame_num, u1_nal_ref_idc, &s_tmp_poc, &ps_dec->s_cur_pic_poc, ps_cur_slice, u1_pic_order_cnt_type, u1_nal_unit_type, u4_idr_pic_id, u1_field_pic_flag, u1_bottom_field_flag); if(i1_is_end_of_poc) { ps_dec->u1_first_slice_in_stream = 0; return ERROR_INCOMPLETE_FRAME; } } /*--------------------------------------------------------------------*/ /* Check for error in slice and parse the missing/corrupted MB's */ /* as skip-MB's in an inserted P-slice */ /*--------------------------------------------------------------------*/ u1_mbaff = ps_seq->u1_mb_aff_flag && (!u1_field_pic_flag); prev_slice_err = 0; if(i1_is_end_of_poc || ps_dec->u1_first_slice_in_stream) { /* If the current slice is not a field or frame number of the current * slice doesn't match with previous slice, and decoder is expecting * to decode a field i.e. ps_dec->u1_top_bottom_decoded is not 0 and * is not (TOP_FIELD_ONLY | BOT_FIELD_ONLY), treat it as a dangling * field */ if((u1_field_pic_flag == 0 || u2_frame_num != ps_dec->u2_prv_frame_num) && ps_dec->u1_top_bottom_decoded != 0 && ps_dec->u1_top_bottom_decoded != (TOP_FIELD_ONLY | BOT_FIELD_ONLY)) { ps_dec->u1_dangling_field = 1; if(ps_dec->u4_first_slice_in_pic) { // first slice - dangling field prev_slice_err = 1; } else { // last slice - dangling field prev_slice_err = 2; } if(ps_dec->u1_top_bottom_decoded == TOP_FIELD_ONLY) ps_cur_slice->u1_bottom_field_flag = 1; else ps_cur_slice->u1_bottom_field_flag = 0; num_mb_skipped = (ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs) - ps_dec->u2_total_mbs_coded; ps_cur_poc = &ps_dec->s_cur_pic_poc; u1_is_idr_slice = ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL; } else if(ps_dec->u4_first_slice_in_pic) { if(u2_first_mb_in_slice > 0) { /* first slice - missing/header corruption */ prev_slice_err = 1; num_mb_skipped = u2_first_mb_in_slice << u1_mbaff; ps_cur_poc = &s_tmp_poc; /* initializing slice parameters */ ps_cur_slice->u4_idr_pic_id = u4_idr_pic_id; ps_cur_slice->u1_field_pic_flag = u1_field_pic_flag; ps_cur_slice->u1_bottom_field_flag = u1_bottom_field_flag; ps_cur_slice->i4_pic_order_cnt_lsb = s_tmp_poc.i4_pic_order_cnt_lsb; ps_cur_slice->u1_nal_unit_type = u1_nal_unit_type; ps_cur_slice->u1_redundant_pic_cnt = u1_redundant_pic_cnt; ps_cur_slice->u1_nal_ref_idc = u1_nal_ref_idc; ps_cur_slice->u1_pic_order_cnt_type = u1_pic_order_cnt_type; ps_cur_slice->u1_mbaff_frame_flag = ps_seq->u1_mb_aff_flag && (!u1_field_pic_flag); } } else { /* since i1_is_end_of_poc is set ,means new frame num is encountered. so * conceal the current frame completely */ prev_slice_err = 2; num_mb_skipped = (ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs) - ps_dec->u2_total_mbs_coded; ps_cur_poc = &s_tmp_poc; } } else { if((u2_first_mb_in_slice << u1_mbaff) > ps_dec->u2_total_mbs_coded) { // previous slice - missing/corruption prev_slice_err = 2; num_mb_skipped = (u2_first_mb_in_slice << u1_mbaff) - ps_dec->u2_total_mbs_coded; ps_cur_poc = &s_tmp_poc; } else if((u2_first_mb_in_slice << u1_mbaff) < ps_dec->u2_total_mbs_coded) { return ERROR_CORRUPTED_SLICE; } } if(prev_slice_err) { ret = isvcd_mark_err_slice_skip((svc_dec_lyr_struct_t *) ps_dec, num_mb_skipped, u1_is_idr_slice, u2_frame_num, ps_cur_poc, prev_slice_err); if(ps_dec->u1_dangling_field == 1) { ps_dec->u1_second_field = 1 - ps_dec->u1_second_field; ps_dec->u1_first_slice_in_stream = 0; ps_dec->u1_top_bottom_decoded = TOP_FIELD_ONLY | BOT_FIELD_ONLY; return ERROR_DANGLING_FIELD_IN_PIC; } if(prev_slice_err == 2) { ps_dec->u1_first_slice_in_stream = 0; return ERROR_INCOMPLETE_FRAME; } if(ps_dec->u2_total_mbs_coded >= ps_dec->u2_frm_ht_in_mbs * ps_dec->u2_frm_wd_in_mbs) { /* return if all MBs in frame are parsed*/ ps_dec->u1_first_slice_in_stream = 0; return ERROR_IN_LAST_SLICE_OF_PIC; } if(ps_dec->ps_dec_err_status->u1_err_flag & REJECT_CUR_PIC) { ih264d_err_pic_dispbuf_mgr(ps_dec); return ERROR_NEW_FRAME_EXPECTED; } if(ret != OK) return ret; i1_is_end_of_poc = 0; } if(u1_field_pic_flag) { ps_dec->u2_prv_frame_num = u2_frame_num; } if(ps_cur_slice->u1_mmco_equalto5 && NULL != ps_dec->ps_cur_pic) { WORD32 i4_temp_poc; WORD32 i4_top_field_order_poc, i4_bot_field_order_poc; WORD64 i8_result; if(!ps_cur_slice->u1_field_pic_flag) { i4_top_field_order_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; i4_bot_field_order_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; i4_temp_poc = MIN(i4_top_field_order_poc, i4_bot_field_order_poc); } else if(!ps_cur_slice->u1_bottom_field_flag) i4_temp_poc = ps_dec->ps_cur_pic->i4_top_field_order_cnt; else i4_temp_poc = ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; i8_result = (WORD64) i4_temp_poc - ps_dec->ps_cur_pic->i4_top_field_order_cnt; if(IS_OUT_OF_RANGE_S32(i8_result)) { return ERROR_INV_POC; } ps_dec->ps_cur_pic->i4_top_field_order_cnt = (WORD32) i8_result; i8_result = (WORD64) i4_temp_poc - ps_dec->ps_cur_pic->i4_bottom_field_order_cnt; if(IS_OUT_OF_RANGE_S32(i8_result)) { return ERROR_INV_POC; } ps_dec->ps_cur_pic->i4_bottom_field_order_cnt = (WORD32) i8_result; ps_dec->ps_cur_pic->i4_poc = i4_temp_poc; ps_dec->ps_cur_pic->i4_avg_poc = i4_temp_poc; } if(ps_dec->u4_first_slice_in_pic) { ret = isvcd_decode_pic_order_cnt(u1_is_idr_slice, u2_frame_num, &ps_dec->s_prev_pic_poc, &s_tmp_poc, ps_cur_slice, ps_pps, u1_nal_ref_idc, u1_bottom_field_flag, u1_field_pic_flag, &i4_poc, ps_dec); if(ret != OK) return ret; /* Display seq no calculations */ if(i4_poc >= ps_dec->i4_max_poc) ps_dec->i4_max_poc = i4_poc; /* IDR Picture or POC wrap around */ if(i4_poc == 0) { WORD64 i8_temp; i8_temp = (WORD64) ps_dec->i4_prev_max_display_seq + ps_dec->i4_max_poc + ps_dec->u1_max_dec_frame_buffering + 1; /*If i4_prev_max_display_seq overflows integer range, reset it */ ps_dec->i4_prev_max_display_seq = IS_OUT_OF_RANGE_S32(i8_temp) ? 0 : i8_temp; ps_dec->i4_max_poc = 0; } } /* Increment only if the current slice has atleast 1 more MB */ if(ps_dec->u4_first_slice_in_pic == 0 && (ps_dec->ps_parse_cur_slice->u4_first_mb_in_slice < (UWORD32) (ps_dec->u2_total_mbs_coded >> ps_dec->ps_cur_slice->u1_mbaff_frame_flag))) { ps_dec->ps_parse_cur_slice++; ps_dec->u2_cur_slice_num++; // in the case of single core increment ps_decode_cur_slice if(ps_dec->u1_separate_parse == 0) { ps_dec->ps_decode_cur_slice++; } } ps_dec->u1_slice_header_done = 0; /*--------------------------------------------------------------------*/ /* Copy the values read from the bitstream to the slice header and then*/ /* If the slice is first slice in picture, then do Start of Picture */ /* processing. */ /*--------------------------------------------------------------------*/ ps_cur_slice->i4_delta_pic_order_cnt[0] = i_delta_poc[0]; ps_cur_slice->i4_delta_pic_order_cnt[1] = i_delta_poc[1]; ps_cur_slice->u4_idr_pic_id = u4_idr_pic_id; ps_cur_slice->u2_first_mb_in_slice = u2_first_mb_in_slice; ps_cur_slice->u1_field_pic_flag = u1_field_pic_flag; ps_cur_slice->u1_bottom_field_flag = u1_bottom_field_flag; ps_cur_slice->u1_slice_type = u1_slice_type; ps_cur_slice->i4_pic_order_cnt_lsb = s_tmp_poc.i4_pic_order_cnt_lsb; ps_cur_slice->u1_nal_unit_type = u1_nal_unit_type; ps_cur_slice->u1_redundant_pic_cnt = u1_redundant_pic_cnt; ps_cur_slice->u1_nal_ref_idc = u1_nal_ref_idc; ps_cur_slice->u1_pic_order_cnt_type = u1_pic_order_cnt_type; if(ps_seq->u1_frame_mbs_only_flag) ps_cur_slice->u1_direct_8x8_inference_flag = ps_seq->u1_direct_8x8_inference_flag; else ps_cur_slice->u1_direct_8x8_inference_flag = 1; if(u1_slice_type == B_SLICE) { ps_cur_slice->u1_direct_spatial_mv_pred_flag = ih264d_get_bit_h264(ps_bitstrm); COPYTHECONTEXT("SH: direct_spatial_mv_pred_flag", ps_cur_slice->u1_direct_spatial_mv_pred_flag); if(ps_cur_slice->u1_direct_spatial_mv_pred_flag) ps_cur_slice->pf_decodeDirect = ih264d_decode_spatial_direct; else ps_cur_slice->pf_decodeDirect = ih264d_decode_temporal_direct; if(!((ps_seq->u1_mb_aff_flag) && (!u1_field_pic_flag))) ps_dec->pf_mvpred = ih264d_mvpred_nonmbaffB; } else { if(!((ps_seq->u1_mb_aff_flag) && (!u1_field_pic_flag))) ps_dec->pf_mvpred = ih264d_mvpred_nonmbaff; } if(ps_dec->u4_first_slice_in_pic) { if(u2_first_mb_in_slice == 0) { ret = isvcd_start_of_pic(ps_svc_lyr_dec, i4_poc, &s_tmp_poc, u2_frame_num, ps_pps); if(ret != OK) return ret; /*inter layer buffer intialization */ ps_svc_lyr_dec->ps_inter_lyr_mb_prms_cur_mb = ps_svc_lyr_dec->ps_inter_lyr_mb_prms_frm_start; ps_svc_lyr_dec->ps_il_pred_mv_bank_buf_cur_mb = ps_svc_lyr_dec->ps_il_pred_mv_bank_buf_base; } ps_dec->u4_output_present = 0; { ih264d_get_next_display_field(ps_dec, ps_dec->ps_out_buffer, &(ps_dec->s_disp_op)); /* If error code is non-zero then there is no buffer available for display, hence avoid format conversion */ if(0 != ps_dec->s_disp_op.u4_error_code) { ps_dec->u4_output_present = 0; ps_dec->u4_fmt_conv_cur_row = ps_dec->s_disp_frame_info.u4_y_ht; } else ps_dec->u4_output_present = 1; } ret = isvcd_parse_interlayer_resamp_func_init(ps_svc_lyr_dec, u2_first_mb_in_slice); if(ret != OK) { return ERROR_CORRUPTED_SLICE; } if((ps_dec->u1_separate_parse == 1) && (ps_svc_lyr_dec->u1_res_init_done == 1)) { if(ps_dec->u4_dec_thread_created == 0) { if(ps_svc_lyr_dec->u1_layer_identifier != TARGET_LAYER) { ithread_create(ps_dec->pv_dec_thread_handle, NULL, (void *) isvcd_decode_picture_thread, (void *) ps_dec); ps_dec->u4_dec_thread_created = 1; } else { ithread_create(ps_dec->pv_dec_thread_handle, NULL, (void *) ih264d_decode_picture_thread, (void *) ps_dec); ps_dec->u4_dec_thread_created = 1; } } #ifdef KEEP_THREADS_ACTIVE ret = ithread_mutex_lock(ps_dec->apv_proc_start_mutex[0]); RETURN_IF((ret != IV_SUCCESS), ret); ps_dec->ai4_process_start[0] = PROC_START; ret = ithread_cond_signal(ps_dec->apv_proc_start_condition[0]); RETURN_IF((ret != IV_SUCCESS), ret); ret = ithread_mutex_unlock(ps_dec->apv_proc_start_mutex[0]); RETURN_IF((ret != IV_SUCCESS), ret); #endif #ifdef KEEP_THREADS_ACTIVE if(ps_dec->u4_bs_deblk_thread_created) { ret = ithread_mutex_lock(ps_dec->apv_proc_start_mutex[1]); RETURN_IF((ret != IV_SUCCESS), ret); ps_dec->ai4_process_start[1] = PROC_START; ret = ithread_cond_signal(ps_dec->apv_proc_start_condition[1]); RETURN_IF((ret != IV_SUCCESS), ret); ret = ithread_mutex_unlock(ps_dec->apv_proc_start_mutex[1]); RETURN_IF((ret != IV_SUCCESS), ret); } #endif } } /* INITIALIZATION of fn ptrs for MC and formMbPartInfo functions */ { UWORD8 uc_nofield_nombaff; uc_nofield_nombaff = ((ps_dec->ps_cur_slice->u1_field_pic_flag == 0) && (ps_dec->ps_cur_slice->u1_mbaff_frame_flag == 0) && (u1_slice_type != B_SLICE) && (ps_dec->ps_cur_pps->u1_wted_pred_flag == 0)); /* Initialise MC and formMbPartInfo fn ptrs one time based on profile_idc */ if(uc_nofield_nombaff) { ps_dec->p_form_mb_part_info = ih264d_form_mb_part_info_bp; ps_dec->p_motion_compensate = ih264d_motion_compensate_bp; } else { ps_dec->p_form_mb_part_info = ih264d_form_mb_part_info_mp; ps_dec->p_motion_compensate = ih264d_motion_compensate_mp; } } /* * Decide whether to decode the current picture or not */ { dec_err_status_t *ps_err = ps_dec->ps_dec_err_status; if(ps_err->u4_frm_sei_sync == u2_frame_num) { ps_err->u1_err_flag = ACCEPT_ALL_PICS; ps_err->u4_frm_sei_sync = SYNC_FRM_DEFAULT; } ps_err->u4_cur_frm = u2_frame_num; } /* Decision for decoding if the picture is to be skipped */ { WORD32 i4_skip_b_pic, i4_skip_p_pic; i4_skip_b_pic = (ps_dec->u4_skip_frm_mask & B_SLC_BIT) && (B_SLICE == u1_slice_type) && (0 == u1_nal_ref_idc); i4_skip_p_pic = (ps_dec->u4_skip_frm_mask & P_SLC_BIT) && (P_SLICE == u1_slice_type) && (0 == u1_nal_ref_idc); /**************************************************************/ /* Skip the B picture if skip mask is set for B picture and */ /* Current B picture is a non reference B picture or there is */ /* no user for reference B picture */ /**************************************************************/ if(i4_skip_b_pic) { ps_dec->ps_cur_pic->u4_pack_slc_typ |= B_SLC_BIT; /* Don't decode the picture in SKIP-B mode if that picture is B */ /* and also it is not to be used as a reference picture */ ps_dec->u1_last_pic_not_decoded = 1; return OK; } /**************************************************************/ /* Skip the P picture if skip mask is set for P picture and */ /* Current P picture is a non reference P picture or there is */ /* no user for reference P picture */ /**************************************************************/ if(i4_skip_p_pic) { ps_dec->ps_cur_pic->u4_pack_slc_typ |= P_SLC_BIT; /* Don't decode the picture in SKIP-P mode if that picture is P */ /* and also it is not to be used as a reference picture */ ps_dec->u1_last_pic_not_decoded = 1; return OK; } } { UWORD16 u2_mb_x, u2_mb_y; ps_dec->i4_submb_ofst = ((u2_first_mb_in_slice << ps_cur_slice->u1_mbaff_frame_flag) * SUB_BLK_SIZE) - SUB_BLK_SIZE; if(u2_first_mb_in_slice) { UWORD8 u1_mb_aff; UWORD8 u1_field_pic; UWORD16 u2_frm_wd_in_mbs; u2_frm_wd_in_mbs = ps_seq->u2_frm_wd_in_mbs; u1_mb_aff = ps_cur_slice->u1_mbaff_frame_flag; u1_field_pic = ps_cur_slice->u1_field_pic_flag; { UWORD32 x_offset; UWORD32 y_offset; UWORD32 u4_frame_stride; tfr_ctxt_t *ps_trns_addr; if(ps_dec->u1_separate_parse) { ps_trns_addr = &ps_dec->s_tran_addrecon_parse; } else { ps_trns_addr = &ps_dec->s_tran_addrecon; } u2_mb_x = MOD(u2_first_mb_in_slice, u2_frm_wd_in_mbs); u2_mb_y = DIV(u2_first_mb_in_slice, u2_frm_wd_in_mbs); u2_mb_y <<= u1_mb_aff; if((u2_mb_x > u2_frm_wd_in_mbs - 1) || (u2_mb_y > ps_dec->u2_frm_ht_in_mbs - 1)) { return ERROR_CORRUPTED_SLICE; } u4_frame_stride = ps_dec->u2_frm_wd_y << u1_field_pic; x_offset = u2_mb_x << 4; y_offset = (u2_mb_y * u4_frame_stride) << 4; ps_trns_addr->pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1 + x_offset + y_offset; u4_frame_stride = ps_dec->u2_frm_wd_uv << u1_field_pic; x_offset >>= 1; y_offset = (u2_mb_y * u4_frame_stride) << 3; x_offset *= YUV420SP_FACTOR; ps_trns_addr->pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2 + x_offset + y_offset; ps_trns_addr->pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3 + x_offset + y_offset; ps_trns_addr->pu1_mb_y = ps_trns_addr->pu1_dest_y; ps_trns_addr->pu1_mb_u = ps_trns_addr->pu1_dest_u; ps_trns_addr->pu1_mb_v = ps_trns_addr->pu1_dest_v; /* assign the deblock structure pointers to start of slice */ if(ps_dec->u1_separate_parse == 1) { ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic + (u2_first_mb_in_slice << u1_mb_aff); } else { ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic + (u2_first_mb_in_slice << u1_mb_aff); } ps_dec->u2_cur_mb_addr = (u2_first_mb_in_slice << u1_mb_aff); ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv + ((u2_first_mb_in_slice << u1_mb_aff) << 4); } } else { tfr_ctxt_t *ps_trns_addr; if(ps_dec->u1_separate_parse) { ps_trns_addr = &ps_dec->s_tran_addrecon_parse; } else { ps_trns_addr = &ps_dec->s_tran_addrecon; } u2_mb_x = 0xffff; u2_mb_y = 0; // assign the deblock structure pointers to start of slice ps_dec->u2_cur_mb_addr = 0; ps_dec->ps_deblk_mbn = ps_dec->ps_deblk_pic; ps_dec->ps_mv_cur = ps_dec->s_cur_pic.ps_mv; ps_trns_addr->pu1_dest_y = ps_dec->s_cur_pic.pu1_buf1; ps_trns_addr->pu1_dest_u = ps_dec->s_cur_pic.pu1_buf2; ps_trns_addr->pu1_dest_v = ps_dec->s_cur_pic.pu1_buf3; ps_trns_addr->pu1_mb_y = ps_trns_addr->pu1_dest_y; ps_trns_addr->pu1_mb_u = ps_trns_addr->pu1_dest_u; ps_trns_addr->pu1_mb_v = ps_trns_addr->pu1_dest_v; } ps_dec->ps_part = ps_dec->ps_parse_part_params; ps_dec->u2_mbx = (MOD(u2_first_mb_in_slice - 1, ps_seq->u2_frm_wd_in_mbs)); ps_dec->u2_mby = (DIV(u2_first_mb_in_slice - 1, ps_seq->u2_frm_wd_in_mbs)); ps_dec->u2_mby <<= ps_cur_slice->u1_mbaff_frame_flag; ps_dec->i2_prev_slice_mbx = (WORD16) ps_dec->u2_mbx; ps_dec->i2_prev_slice_mby = (WORD16) ps_dec->u2_mby; } /* RBSP stop bit is used for CABAC decoding*/ ps_bitstrm->u4_max_ofst += ps_dec->ps_cur_pps->u1_entropy_coding_mode; ps_dec->u1_B = (u1_slice_type == B_SLICE); ps_dec->u4_next_mb_skip = 0; ps_dec->ps_parse_cur_slice->u4_first_mb_in_slice = ps_dec->ps_cur_slice->u2_first_mb_in_slice; ps_dec->ps_parse_cur_slice->slice_type = ps_dec->ps_cur_slice->u1_slice_type; ps_dec->u4_start_recon_deblk = 1; { WORD32 num_entries; WORD32 size; UWORD8 *pu1_buf; num_entries = MAX_FRAMES; if((1 >= ps_dec->ps_cur_sps->u1_num_ref_frames) && (0 == ps_dec->i4_display_delay)) { num_entries = 1; } num_entries = ((2 * num_entries) + 1); num_entries *= 2; size = num_entries * sizeof(void *); size += PAD_MAP_IDX_POC * sizeof(void *); pu1_buf = (UWORD8 *) ps_dec->pv_map_ref_idx_to_poc_buf; pu1_buf += size * ps_dec->u2_cur_slice_num; ps_dec->ps_parse_cur_slice->ppv_map_ref_idx_to_poc = (void *) pu1_buf; } if(ps_dec->u1_separate_parse) { ps_dec->ps_parse_cur_slice->pv_tu_coeff_data_start = ps_dec->pv_parse_tu_coeff_data; } else { ps_dec->pv_proc_tu_coeff_data = ps_dec->pv_parse_tu_coeff_data; } ret = ih264d_fix_error_in_dpb(ps_dec); if(ret < 0) return ERROR_DBP_MANAGER_T; if(u1_slice_type == I_SLICE) { ps_dec->ps_cur_pic->u4_pack_slc_typ |= I_SLC_BIT; ret = isvcd_parse_islice(ps_svc_lyr_dec, u2_first_mb_in_slice); ps_dec->u1_pr_sl_type = u1_slice_type; if(ps_dec->i4_pic_type != B_SLICE && ps_dec->i4_pic_type != P_SLICE) ps_dec->i4_pic_type = I_SLICE; } else if(u1_slice_type == P_SLICE) { ps_dec->ps_cur_pic->u4_pack_slc_typ |= P_SLC_BIT; ret = isvcd_parse_pslice(ps_svc_lyr_dec, u2_first_mb_in_slice); ps_dec->u1_pr_sl_type = u1_slice_type; if(ps_dec->i4_pic_type != B_SLICE) ps_dec->i4_pic_type = P_SLICE; } else if(u1_slice_type == B_SLICE) { ps_dec->ps_cur_pic->u4_pack_slc_typ |= B_SLC_BIT; ret = isvcd_parse_bslice(ps_svc_lyr_dec, u2_first_mb_in_slice); ps_dec->u1_pr_sl_type = u1_slice_type; ps_dec->i4_pic_type = B_SLICE; } else return ERROR_INV_SLC_TYPE_T; if(ps_dec->u1_slice_header_done) { /* set to zero to indicate a valid slice has been decoded */ ps_dec->u1_first_slice_in_stream = 0; } if(ret != OK) return ret; if(u1_nal_ref_idc != 0) { if(!ps_dec->ps_dpb_cmds->u1_dpb_commands_read) { memcpy((void *) ps_dec->ps_dpb_cmds, (void *) (&(ps_dec->s_dpb_cmds_scratch)), sizeof(dpb_commands_t)); } } /* storing last Mb X and MbY of the slice */ ps_dec->i2_prev_slice_mbx = ps_dec->u2_mbx; ps_dec->i2_prev_slice_mby = ps_dec->u2_mby; /* End of Picture detection */ if(ps_dec->u2_total_mbs_coded >= (ps_seq->u2_max_mb_addr + 1)) { ps_dec->u1_pic_decode_done = 1; } { dec_err_status_t *ps_err = ps_dec->ps_dec_err_status; if((ps_err->u1_err_flag & REJECT_PB_PICS) && (ps_err->u1_cur_pic_type == PIC_TYPE_I)) { ps_err->u1_err_flag = ACCEPT_ALL_PICS; } } PRINT_BIN_BIT_RATIO(ps_dec) return ret; }