/****************************************************************************** * * Copyright (C) 2015 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 ih264d_utils.c * * \brief * Contains routines that handle of start and end of pic processing * * \date * 19/12/2002 * * \author AI ************************************************************************** */ #include <string.h> #include "ih264_typedefs.h" #include "ithread.h" #include "ih264d_deblocking.h" #include "ih264d_parse_slice.h" #include "ih264d_parse_cavlc.h" #include "ih264d_dpb_manager.h" #include "ih264d_defs.h" #include "ih264d_structs.h" #include "ih264d_mem_request.h" #include "ih264_typedefs.h" #include "ih264_macros.h" #include "ih264_platform_macros.h" #include "ih264d_tables.h" #include "ih264d_debug.h" #include "ih264d_mb_utils.h" #include "ih264d_error_handler.h" #include "ih264d_dpb_manager.h" #include "ih264d_utils.h" #include "ih264d_defs.h" #include "ih264d_tables.h" #include "ih264d_inter_pred.h" #include "ih264d_dpb_manager.h" #include "iv.h" #include "ivd.h" #include "ih264d_format_conv.h" #include "ih264_error.h" #include "ih264_disp_mgr.h" #include "ih264_buf_mgr.h" #include "ih264d_utils.h" /*! ************************************************************************** * \if Function name : ih264d_is_end_of_pic \endif * * \brief * Determines whether current slice is first slice of a new picture as * defined in 7.4.1.2.4 of 14496-10. * * \return * Return 1 if current slice is first slice of a new picture * Otherwise it returns 0 ************************************************************************** */ UWORD8 ih264d_is_end_of_pic(UWORD16 u2_frame_num, UWORD8 u1_nal_ref_idc, pocstruct_t *ps_cur_poc, pocstruct_t *ps_prev_poc, dec_slice_params_t * ps_prev_slice, /*!< Previous slice parameters*/ UWORD8 u1_pic_order_cnt_type, UWORD8 u1_nal_unit_type, UWORD32 u4_idr_pic_id, UWORD8 u1_field_pic_flag, UWORD8 u1_bottom_field_flag) { WORD8 i1_is_end_of_pic; WORD8 a, b, c, d, e, f, g, h; a = b = c = d = e = f = g = h = 0; a = (ps_prev_slice->u2_frame_num != u2_frame_num); b = (ps_prev_slice->u1_field_pic_flag != u1_field_pic_flag); if(u1_field_pic_flag && ps_prev_slice->u1_field_pic_flag) c = (u1_bottom_field_flag != ps_prev_slice->u1_bottom_field_flag); d = (u1_nal_ref_idc == 0 && ps_prev_slice->u1_nal_ref_idc != 0) || (u1_nal_ref_idc != 0 && ps_prev_slice->u1_nal_ref_idc == 0); if(!a) { if((u1_pic_order_cnt_type == 0) && (ps_prev_slice->u1_pic_order_cnt_type == 0)) { e = ((ps_cur_poc->i4_pic_order_cnt_lsb != ps_prev_poc->i4_pic_order_cnt_lsb) || (ps_cur_poc->i4_delta_pic_order_cnt_bottom != ps_prev_poc->i4_delta_pic_order_cnt_bottom)); } if((u1_pic_order_cnt_type == 1) && (ps_prev_slice->u1_pic_order_cnt_type == 1)) { f = ((ps_cur_poc->i4_delta_pic_order_cnt[0] != ps_prev_poc->i4_delta_pic_order_cnt[0]) || (ps_cur_poc->i4_delta_pic_order_cnt[1] != ps_prev_poc->i4_delta_pic_order_cnt[1])); } } if((u1_nal_unit_type == IDR_SLICE_NAL) && (ps_prev_slice->u1_nal_unit_type == IDR_SLICE_NAL)) { g = (u4_idr_pic_id != ps_prev_slice->u4_idr_pic_id); } if((u1_nal_unit_type == IDR_SLICE_NAL) && (ps_prev_slice->u1_nal_unit_type != IDR_SLICE_NAL)) { h = 1; } i1_is_end_of_pic = a + b + c + d + e + f + g + h; return (i1_is_end_of_pic); } /*! ************************************************************************** * \if Function name : ih264d_decode_pic_order_cnt \endif * * \brief * Calculates picture order count of picture. * * \return * Returns the pic order count of the picture to which current * Slice belongs. * ************************************************************************** */ WORD32 ih264d_decode_pic_order_cnt(UWORD8 u1_is_idr_slice, UWORD32 u2_frame_num, pocstruct_t *ps_prev_poc, pocstruct_t *ps_cur_poc, dec_slice_params_t *ps_cur_slice, /*!< Pointer to current slice Params*/ dec_pic_params_t * ps_pps, UWORD8 u1_nal_ref_idc, UWORD8 u1_bottom_field_flag, UWORD8 u1_field_pic_flag, WORD32 *pi4_poc) { WORD16 i1_pic_msb; WORD32 i4_top_field_order_cnt = 0, i4_bottom_field_order_cnt = 0; dec_seq_params_t *ps_seq = ps_pps->ps_sps; WORD32 i4_prev_frame_num_ofst; switch(ps_seq->u1_pic_order_cnt_type) { case 0: /* POC TYPE 0 */ if(u1_is_idr_slice) { ps_prev_poc->i4_pic_order_cnt_msb = 0; ps_prev_poc->i4_pic_order_cnt_lsb = 0; } if(ps_prev_poc->u1_mmco_equalto5) { if(ps_prev_poc->u1_bot_field != 1) { ps_prev_poc->i4_pic_order_cnt_msb = 0; ps_prev_poc->i4_pic_order_cnt_lsb = ps_prev_poc->i4_top_field_order_count; } else { ps_prev_poc->i4_pic_order_cnt_msb = 0; ps_prev_poc->i4_pic_order_cnt_lsb = 0; } } if((ps_cur_poc->i4_pic_order_cnt_lsb < ps_prev_poc->i4_pic_order_cnt_lsb) && ((ps_prev_poc->i4_pic_order_cnt_lsb - ps_cur_poc->i4_pic_order_cnt_lsb) >= (ps_seq->i4_max_pic_order_cntLsb >> 1))) { i1_pic_msb = ps_prev_poc->i4_pic_order_cnt_msb + ps_seq->i4_max_pic_order_cntLsb; } else if((ps_cur_poc->i4_pic_order_cnt_lsb > ps_prev_poc->i4_pic_order_cnt_lsb) && ((ps_cur_poc->i4_pic_order_cnt_lsb - ps_prev_poc->i4_pic_order_cnt_lsb) >= (ps_seq->i4_max_pic_order_cntLsb >> 1))) { i1_pic_msb = ps_prev_poc->i4_pic_order_cnt_msb - ps_seq->i4_max_pic_order_cntLsb; } else { i1_pic_msb = ps_prev_poc->i4_pic_order_cnt_msb; } if(!u1_field_pic_flag || !u1_bottom_field_flag) i4_top_field_order_cnt = i1_pic_msb + ps_cur_poc->i4_pic_order_cnt_lsb; if(!u1_field_pic_flag) { i4_bottom_field_order_cnt = i4_top_field_order_cnt + ps_cur_poc->i4_delta_pic_order_cnt_bottom; } else if(u1_bottom_field_flag) { i4_bottom_field_order_cnt = i1_pic_msb + ps_cur_poc->i4_pic_order_cnt_lsb; } ps_cur_poc->i4_pic_order_cnt_msb = i1_pic_msb; break; case 1: { /* POC TYPE 1 */ UWORD8 i; WORD32 prev_frame_num; WORD32 frame_num_ofst; WORD32 abs_frm_num; WORD32 poc_cycle_cnt, frame_num_in_poc_cycle; WORD32 expected_delta_poc_cycle; WORD32 expected_poc; prev_frame_num = (WORD32)ps_cur_slice->u2_frame_num; if(!u1_is_idr_slice) { if(ps_cur_slice->u1_mmco_equalto5) { prev_frame_num = 0; i4_prev_frame_num_ofst = 0; } else { i4_prev_frame_num_ofst = ps_prev_poc->i4_prev_frame_num_ofst; } } else i4_prev_frame_num_ofst = 0; /* 1. Derivation for FrameNumOffset */ if(u1_is_idr_slice) { frame_num_ofst = 0; ps_cur_poc->i4_delta_pic_order_cnt[0] = 0; ps_cur_poc->i4_delta_pic_order_cnt[1] = 0; } else if(prev_frame_num > ((WORD32)u2_frame_num)) { frame_num_ofst = i4_prev_frame_num_ofst + ps_seq->u2_u4_max_pic_num_minus1 + 1; } else frame_num_ofst = i4_prev_frame_num_ofst; /* 2. Derivation for absFrameNum */ if(0 != ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle) abs_frm_num = frame_num_ofst + u2_frame_num; else abs_frm_num = 0; if((u1_nal_ref_idc == 0) && (abs_frm_num > 0)) abs_frm_num = abs_frm_num - 1; /* 4. expectedDeltaPerPicOrderCntCycle is derived as */ expected_delta_poc_cycle = 0; for(i = 0; i < ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle; i++) { expected_delta_poc_cycle += ps_seq->i4_ofst_for_ref_frame[i]; } /* 3. When absFrameNum > 0, picOrderCntCycleCnt and frame_num_in_poc_cycle are derived as : */ /* 5. expectedPicOrderCnt is derived as : */ if(abs_frm_num > 0) { poc_cycle_cnt = DIV((abs_frm_num - 1), ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle); frame_num_in_poc_cycle = MOD((abs_frm_num - 1), ps_seq->u1_num_ref_frames_in_pic_order_cnt_cycle); expected_poc = poc_cycle_cnt * expected_delta_poc_cycle; for(i = 0; i <= frame_num_in_poc_cycle; i++) { expected_poc = expected_poc + ps_seq->i4_ofst_for_ref_frame[i]; } } else expected_poc = 0; if(u1_nal_ref_idc == 0) { expected_poc = expected_poc + ps_seq->i4_ofst_for_non_ref_pic; } /* 6. TopFieldOrderCnt or BottomFieldOrderCnt are derived as */ if(!u1_field_pic_flag) { i4_top_field_order_cnt = expected_poc + ps_cur_poc->i4_delta_pic_order_cnt[0]; i4_bottom_field_order_cnt = i4_top_field_order_cnt + ps_seq->i4_ofst_for_top_to_bottom_field + ps_cur_poc->i4_delta_pic_order_cnt[1]; } else if(!u1_bottom_field_flag) { i4_top_field_order_cnt = expected_poc + ps_cur_poc->i4_delta_pic_order_cnt[0]; } else { i4_bottom_field_order_cnt = expected_poc + ps_seq->i4_ofst_for_top_to_bottom_field + ps_cur_poc->i4_delta_pic_order_cnt[0]; } /* Copy the current POC info into Previous POC structure */ ps_cur_poc->i4_prev_frame_num_ofst = frame_num_ofst; } break; case 2: { /* POC TYPE 2 */ WORD32 prev_frame_num; WORD32 frame_num_ofst; WORD32 tmp_poc; prev_frame_num = (WORD32)ps_cur_slice->u2_frame_num; if(!u1_is_idr_slice) { if(ps_cur_slice->u1_mmco_equalto5) { prev_frame_num = 0; i4_prev_frame_num_ofst = 0; } else i4_prev_frame_num_ofst = ps_prev_poc->i4_prev_frame_num_ofst; } else i4_prev_frame_num_ofst = 0; /* 1. Derivation for FrameNumOffset */ if(u1_is_idr_slice) { frame_num_ofst = 0; ps_cur_poc->i4_delta_pic_order_cnt[0] = 0; ps_cur_poc->i4_delta_pic_order_cnt[1] = 0; } else if(prev_frame_num > ((WORD32)u2_frame_num)) { frame_num_ofst = i4_prev_frame_num_ofst + ps_seq->u2_u4_max_pic_num_minus1 + 1; } else frame_num_ofst = i4_prev_frame_num_ofst; /* 2. Derivation for tempPicOrderCnt */ if(u1_is_idr_slice) tmp_poc = 0; else if(u1_nal_ref_idc == 0) tmp_poc = ((frame_num_ofst + u2_frame_num) << 1) - 1; else tmp_poc = ((frame_num_ofst + u2_frame_num) << 1); /* 6. TopFieldOrderCnt or BottomFieldOrderCnt are derived as */ if(!u1_field_pic_flag) { i4_top_field_order_cnt = tmp_poc; i4_bottom_field_order_cnt = tmp_poc; } else if(!u1_bottom_field_flag) i4_top_field_order_cnt = tmp_poc; else i4_bottom_field_order_cnt = tmp_poc; /* Copy the current POC info into Previous POC structure */ ps_prev_poc->i4_prev_frame_num_ofst = frame_num_ofst; ps_cur_poc->i4_prev_frame_num_ofst = frame_num_ofst; } break; default: return ERROR_INV_POC_TYPE_T; break; } if(!u1_field_pic_flag) // or a complementary field pair { *pi4_poc = MIN(i4_top_field_order_cnt, i4_bottom_field_order_cnt); ps_pps->i4_top_field_order_cnt = i4_top_field_order_cnt; ps_pps->i4_bottom_field_order_cnt = i4_bottom_field_order_cnt; } else if(!u1_bottom_field_flag) { *pi4_poc = i4_top_field_order_cnt; ps_pps->i4_top_field_order_cnt = i4_top_field_order_cnt; } else { *pi4_poc = i4_bottom_field_order_cnt; ps_pps->i4_bottom_field_order_cnt = i4_bottom_field_order_cnt; } ps_pps->i4_avg_poc = *pi4_poc; return OK; } /*! ************************************************************************** * \if Function name : ih264d_end_of_pic_processing \endif * * \brief * Performs the end of picture processing. * * It performs deblocking on the current picture and sets the i4_status of * current picture as decoded. * * \return * 0 on Success and Error code otherwise. ************************************************************************** */ WORD32 ih264d_end_of_pic_processing(dec_struct_t *ps_dec) { UWORD8 u1_pic_type, u1_nal_ref_idc; dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice; /* If nal_ref_idc is equal to 0 for one slice or slice data partition NAL unit of a particular picture, it shall be equal to 0 for all slice and slice data partition NAL units of the picture. nal_ref_idc greater than 0 indicates that the content of the NAL unit belongs to a decoded picture that is stored and marked for use as a reference picture in the decoded picture buffer. */ /* 1. Do MMCO 2. Add Cur Pic to list of reference pics. */ /* Call MMCO */ u1_pic_type = 0; u1_nal_ref_idc = ps_cur_slice->u1_nal_ref_idc; if(u1_nal_ref_idc) { if(ps_cur_slice->u1_nal_unit_type == IDR_SLICE_NAL) { if(ps_dec->ps_dpb_cmds->u1_long_term_reference_flag == 0) { ih264d_reset_ref_bufs(ps_dec->ps_dpb_mgr); /* ignore DPB errors */ ih264d_insert_st_node(ps_dec->ps_dpb_mgr, ps_dec->ps_cur_pic, ps_dec->u1_pic_buf_id, ps_cur_slice->u2_frame_num); } else { /* Equivalent of inserting a pic directly as longterm Pic */ { /* ignore DPB errors */ ih264d_insert_st_node(ps_dec->ps_dpb_mgr, ps_dec->ps_cur_pic, ps_dec->u1_pic_buf_id, ps_cur_slice->u2_frame_num); /* Set longTermIdx = 0, MaxLongTermFrameIdx = 0 */ ih264d_delete_st_node_or_make_lt( ps_dec->ps_dpb_mgr, ps_cur_slice->u2_frame_num, 0, ps_cur_slice->u1_field_pic_flag); ps_dec->ps_dpb_mgr->u1_max_lt_pic_idx_plus1 = 1; } } } else { { UWORD16 u2_pic_num = ps_cur_slice->u2_frame_num; /* ignore DPB errors */ ih264d_do_mmco_buffer(ps_dec->ps_dpb_cmds, ps_dec->ps_dpb_mgr, ps_dec->ps_cur_sps->u1_num_ref_frames, u2_pic_num, (ps_dec->ps_cur_sps->u2_u4_max_pic_num_minus1), ps_dec->u1_nal_unit_type, ps_dec->ps_cur_pic, ps_dec->u1_pic_buf_id, ps_cur_slice->u1_field_pic_flag, ps_dec->e_dec_status); } } ih264d_update_default_index_list(ps_dec->ps_dpb_mgr); } if(ps_cur_slice->u1_field_pic_flag) { if(ps_cur_slice->u1_bottom_field_flag) { if(u1_nal_ref_idc) u1_pic_type = u1_pic_type | BOT_REF; u1_pic_type = u1_pic_type | BOT_FLD; } else { if(u1_nal_ref_idc) u1_pic_type = u1_pic_type | TOP_REF; u1_pic_type = u1_pic_type | TOP_FLD; } } else u1_pic_type = TOP_REF | BOT_REF; ps_dec->ps_cur_pic->u1_pic_type |= u1_pic_type; if(ps_cur_slice->u1_field_pic_flag) { H264_DEC_DEBUG_PRINT("Toggling secondField\n"); ps_dec->u1_second_field = 1 - ps_dec->u1_second_field; } return OK; } /*****************************************************************************/ /* */ /* Function Name : init_dpb_size */ /* */ /* Description : This function calculates the DBP i4_size in frames */ /* Inputs : ps_seq - current sequence params */ /* */ /* Globals : None */ /* */ /* Outputs : None */ /* */ /* Returns : DPB in frames */ /* */ /* Issues : None */ /* */ /* Revision History: */ /* */ /* DD MM YYYY Author(s) Changes (Describe the changes made) */ /* 28 04 2005 NS Draft */ /* */ /*****************************************************************************/ WORD32 ih264d_get_dpb_size(dec_seq_params_t *ps_seq) { WORD32 i4_size; UWORD8 u1_level_idc; u1_level_idc = ps_seq->u1_level_idc; switch(u1_level_idc) { case 10: i4_size = 152064; break; case 11: i4_size = 345600; break; case 12: i4_size = 912384; break; case 13: i4_size = 912384; break; case 20: i4_size = 912384; break; case 21: i4_size = 1824768; break; case 22: i4_size = 3110400; break; case 30: i4_size = 3110400; break; case 31: i4_size = 6912000; break; case 32: i4_size = 7864320; break; case 40: i4_size = 12582912; break; case 41: i4_size = 12582912; break; case 42: i4_size = 12582912; break; case 50: i4_size = 42393600; break; case 51: i4_size = 70778880; break; case 52: i4_size = 70778880; break; default: i4_size = 70778880; break; } i4_size /= (ps_seq->u2_frm_wd_in_mbs * (ps_seq->u2_frm_ht_in_mbs << (1 - ps_seq->u1_frame_mbs_only_flag))); i4_size /= 384; i4_size = MIN(i4_size, 16); i4_size = MAX(i4_size, 1); return (i4_size); } /***************************************************************************/ /* If change in Level or the required PicBuffers i4_size is more than the */ /* current one FREE the current PicBuffers and allocate affresh */ /***************************************************************************/ UWORD8 ih264d_is_sps_changed(prev_seq_params_t * ps_prv, dec_seq_params_t * ps_cur) { if((ps_prv->u2_frm_wd_in_mbs != ps_cur->u2_frm_wd_in_mbs) || (ps_prv->u1_level_idc != ps_cur->u1_level_idc) || (ps_prv->u1_profile_idc != ps_cur->u1_profile_idc) || (ps_cur->u2_frm_ht_in_mbs != ps_prv->u2_frm_ht_in_mbs) || (ps_cur->u1_frame_mbs_only_flag != ps_prv->u1_frame_mbs_only_flag) || (ps_cur->u1_direct_8x8_inference_flag != ps_prv->u1_direct_8x8_inference_flag)) return 1; return 0; } /**************************************************************************/ /* This function initialises the value of ps_dec->u1_recon_mb_grp */ /* ps_dec->u1_recon_mb_grp must satisfy the following criteria */ /* - multiple of 2 (required for N/2 parse-mvpred design) */ /* - multiple of 4 (if it is not a frame_mbs_only sequence), */ /* in this case N/2 itself needs to be even for mbpair processing */ /* - lesser than ps_dec->u2_frm_wd_in_mbs/2 (at least 3 N-Chunks */ /* should make a row to ensure proper MvTop transferring) */ /**************************************************************************/ WORD32 ih264d_init_dec_mb_grp(dec_struct_t *ps_dec) { dec_seq_params_t *ps_seq = ps_dec->ps_cur_sps; UWORD8 u1_frm = ps_seq->u1_frame_mbs_only_flag; ps_dec->u1_recon_mb_grp = ps_dec->u2_frm_wd_in_mbs << ps_seq->u1_mb_aff_flag; ps_dec->u1_recon_mb_grp_pair = ps_dec->u1_recon_mb_grp >> 1; if(!ps_dec->u1_recon_mb_grp) { return ERROR_MB_GROUP_ASSGN_T; } ps_dec->u4_num_mbs_prev_nmb = ps_dec->u1_recon_mb_grp; return OK; } /*! ************************************************************************** * \if Function name : ih264d_init_pic \endif * * \brief * Initializes the picture. * * \return * 0 on Success and Error code otherwise * * \note * This function is called when first slice of the * NON -IDR picture is encountered. ************************************************************************** */ WORD32 ih264d_init_pic(dec_struct_t *ps_dec, UWORD16 u2_frame_num, WORD32 i4_poc, dec_pic_params_t *ps_pps) { dec_seq_params_t *ps_seq = ps_pps->ps_sps; prev_seq_params_t * ps_prev_seq_params = &ps_dec->s_prev_seq_params; WORD32 i4_pic_bufs; WORD32 ret; ps_dec->ps_cur_slice->u2_frame_num = u2_frame_num; ps_dec->ps_cur_slice->i4_poc = i4_poc; ps_dec->ps_cur_pps = ps_pps; ps_dec->ps_cur_pps->pv_codec_handle = ps_dec; ps_dec->ps_cur_sps = ps_seq; ps_dec->ps_dpb_mgr->i4_max_frm_num = ps_seq->u2_u4_max_pic_num_minus1 + 1; ps_dec->ps_dpb_mgr->u2_pic_ht = ps_dec->u2_pic_ht; ps_dec->ps_dpb_mgr->u2_pic_wd = ps_dec->u2_pic_wd; ps_dec->i4_pic_type = -1; ps_dec->i4_frametype = -1; ps_dec->i4_content_type = -1; /*--------------------------------------------------------------------*/ /* Get the value of MaxMbAddress and frmheight in Mbs */ /*--------------------------------------------------------------------*/ ps_seq->u2_max_mb_addr = (ps_seq->u2_frm_wd_in_mbs * (ps_dec->u2_pic_ht >> (4 + ps_dec->ps_cur_slice->u1_field_pic_flag))) - 1; ps_dec->u2_frm_ht_in_mbs = (ps_dec->u2_pic_ht >> (4 + ps_dec->ps_cur_slice->u1_field_pic_flag)); /***************************************************************************/ /* If change in Level or the required PicBuffers i4_size is more than the */ /* current one FREE the current PicBuffers and allocate affresh */ /***************************************************************************/ if(!ps_dec->u1_init_dec_flag || ih264d_is_sps_changed(ps_prev_seq_params, ps_seq)) { ps_dec->u1_max_dec_frame_buffering = ih264d_get_dpb_size(ps_seq); ps_dec->i4_display_delay = ps_dec->u1_max_dec_frame_buffering; if((1 == ps_seq->u1_vui_parameters_present_flag) && (1 == ps_seq->s_vui.u1_bitstream_restriction_flag)) { if(ps_seq->u1_frame_mbs_only_flag == 1) ps_dec->i4_display_delay = ps_seq->s_vui.u4_num_reorder_frames + 1; else ps_dec->i4_display_delay = ps_seq->s_vui.u4_num_reorder_frames * 2 + 2; } if(IVD_DECODE_FRAME_OUT == ps_dec->e_frm_out_mode) ps_dec->i4_display_delay = 0; if(ps_dec->u4_share_disp_buf == 0) { if(ps_seq->u1_frame_mbs_only_flag == 1) ps_dec->u1_pic_bufs = ps_dec->i4_display_delay + ps_seq->u1_num_ref_frames + 1; else ps_dec->u1_pic_bufs = ps_dec->i4_display_delay + ps_seq->u1_num_ref_frames * 2 + 2; } else { ps_dec->u1_pic_bufs = (WORD32)ps_dec->u4_num_disp_bufs; } /* Ensure at least two buffers are allocated */ ps_dec->u1_pic_bufs = MAX(ps_dec->u1_pic_bufs, 2); if(ps_dec->u4_share_disp_buf == 0) ps_dec->u1_pic_bufs = MIN(ps_dec->u1_pic_bufs, (H264_MAX_REF_PICS * 2)); ps_dec->u1_max_dec_frame_buffering = MIN( ps_dec->u1_max_dec_frame_buffering, ps_dec->u1_pic_bufs); /* Temporary hack to run Tractor Cav/Cab/MbAff Profiler streams also for CAFI1_SVA_C.264 in conformance*/ if(ps_dec->u1_init_dec_flag) { ih264d_release_pics_in_dpb((void *)ps_dec, ps_dec->u1_pic_bufs); ih264d_release_display_bufs(ps_dec); ih264d_reset_ref_bufs(ps_dec->ps_dpb_mgr); } /*********************************************************************/ /* Configuring decoder parameters based on level and then */ /* fresh pointer initialisation in decoder scratch and state buffers */ /*********************************************************************/ if(!ps_dec->u1_init_dec_flag || ((ps_seq->u1_level_idc < H264_LEVEL_3_0) ^ (ps_prev_seq_params->u1_level_idc < H264_LEVEL_3_0))) { ret = ih264d_init_dec_mb_grp(ps_dec); if(ret != OK) return ret; } ret = ih264d_allocate_dynamic_bufs(ps_dec); if(ret != OK) { /* Free any dynamic buffers that are allocated */ ih264d_free_dynamic_bufs(ps_dec); ps_dec->i4_error_code = IVD_MEM_ALLOC_FAILED; return IVD_MEM_ALLOC_FAILED; } ret = ih264d_create_pic_buffers(ps_dec->u1_pic_bufs, ps_dec); if(ret != OK) return ret; ret = ih264d_create_mv_bank(ps_dec, ps_dec->u2_pic_wd, ps_dec->u2_pic_ht); if(ret != OK) return ret; /* In shared mode, set all of them as used by display */ if(ps_dec->u4_share_disp_buf == 1) { WORD32 i; for(i = 0; i < ps_dec->u1_pic_bufs; i++) { ih264_buf_mgr_set_status((buf_mgr_t *)ps_dec->pv_pic_buf_mgr, i, BUF_MGR_IO); } } ps_dec->u1_init_dec_flag = 1; ps_prev_seq_params->u2_frm_wd_in_mbs = ps_seq->u2_frm_wd_in_mbs; ps_prev_seq_params->u1_level_idc = ps_seq->u1_level_idc; ps_prev_seq_params->u1_profile_idc = ps_seq->u1_profile_idc; ps_prev_seq_params->u2_frm_ht_in_mbs = ps_seq->u2_frm_ht_in_mbs; ps_prev_seq_params->u1_frame_mbs_only_flag = ps_seq->u1_frame_mbs_only_flag; ps_prev_seq_params->u1_direct_8x8_inference_flag = ps_seq->u1_direct_8x8_inference_flag; ps_dec->i4_cur_display_seq = 0; ps_dec->i4_prev_max_display_seq = 0; ps_dec->i4_max_poc = 0; { /* 0th entry of CtxtIncMbMap will be always be containing default values for CABAC context representing MB not available */ ctxt_inc_mb_info_t *p_DefCtxt = ps_dec->p_ctxt_inc_mb_map - 1; UWORD8 *pu1_temp; WORD8 i; p_DefCtxt->u1_mb_type = CAB_SKIP; p_DefCtxt->u1_cbp = 0x0f; p_DefCtxt->u1_intra_chroma_pred_mode = 0; p_DefCtxt->u1_yuv_dc_csbp = 0x7; p_DefCtxt->u1_transform8x8_ctxt = 0; pu1_temp = (UWORD8*)p_DefCtxt->i1_ref_idx; for(i = 0; i < 4; i++, pu1_temp++) (*pu1_temp) = 0; pu1_temp = (UWORD8*)p_DefCtxt->u1_mv; for(i = 0; i < 16; i++, pu1_temp++) (*pu1_temp) = 0; ps_dec->ps_def_ctxt_mb_info = p_DefCtxt; } } /* reset DBP commands read u4_flag */ ps_dec->ps_dpb_cmds->u1_dpb_commands_read = 0; return OK; } /*****************************************************************************/ /* */ /* Function Name : ih264d_get_next_display_field */ /* */ /* Description : Application calls this module to get the next field */ /* to be displayed */ /* */ /* Inputs : 1. IBUFAPI_Handle Hnadle to the Display buffer */ /* 2. IH264DEC_DispUnit Pointer to the display struct */ /* */ /* Globals : */ /* */ /* */ /* Processing : None */ /* Outputs : None */ /* Returns : None */ /* Issues : None */ /* */ /* Revision History: */ /* */ /* DD MM YYYY Author(s) Changes (Describe the changes made) */ /* 27 05 2005 Ittiam Draft */ /* */ /*****************************************************************************/ WORD32 ih264d_get_next_display_field(dec_struct_t * ps_dec, ivd_out_bufdesc_t *ps_out_buffer, ivd_get_display_frame_op_t *pv_disp_op) { pic_buffer_t *pic_buf; UWORD8 i1_cur_fld; WORD32 u4_api_ret = -1; WORD32 i4_disp_buf_id; iv_yuv_buf_t *ps_op_frm; ps_op_frm = &(ps_dec->s_disp_frame_info); H264_MUTEX_LOCK(&ps_dec->process_disp_mutex); pic_buf = (pic_buffer_t *)ih264_disp_mgr_get( (disp_mgr_t *)ps_dec->pv_disp_buf_mgr, &i4_disp_buf_id); ps_dec->u4_num_fld_in_frm = 0; u4_api_ret = -1; pv_disp_op->u4_ts = -1; pv_disp_op->e_output_format = ps_dec->u1_chroma_format; pv_disp_op->s_disp_frm_buf.pv_y_buf = ps_out_buffer->pu1_bufs[0]; pv_disp_op->s_disp_frm_buf.pv_u_buf = ps_out_buffer->pu1_bufs[1]; pv_disp_op->s_disp_frm_buf.pv_v_buf = ps_out_buffer->pu1_bufs[2]; if(pic_buf != NULL) { pv_disp_op->e4_fld_type = 0; pv_disp_op->u4_disp_buf_id = i4_disp_buf_id; ps_op_frm->u4_y_ht = pic_buf->u2_disp_height << 1; ps_op_frm->u4_u_ht = ps_op_frm->u4_v_ht = ps_op_frm->u4_y_ht >> 1; ps_op_frm->u4_y_wd = pic_buf->u2_disp_width; ps_op_frm->u4_u_wd = ps_op_frm->u4_v_wd = ps_op_frm->u4_y_wd >> 1; ps_op_frm->u4_y_strd = pic_buf->u2_frm_wd_y; ps_op_frm->u4_u_strd = ps_op_frm->u4_v_strd = pic_buf->u2_frm_wd_uv; /* ! */ pv_disp_op->u4_ts = pic_buf->u4_ts; /* set the start of the Y, U and V buffer pointer for display */ ps_op_frm->pv_y_buf = pic_buf->pu1_buf1 + pic_buf->u2_crop_offset_y; ps_op_frm->pv_u_buf = pic_buf->pu1_buf2 + pic_buf->u2_crop_offset_uv; ps_op_frm->pv_v_buf = pic_buf->pu1_buf3 + pic_buf->u2_crop_offset_uv; ps_dec->u4_num_fld_in_frm++; ps_dec->u4_num_fld_in_frm++; u4_api_ret = 0; if(pic_buf->u1_picturetype == 0) pv_disp_op->u4_progressive_frame_flag = 1; else pv_disp_op->u4_progressive_frame_flag = 0; } H264_MUTEX_UNLOCK(&ps_dec->process_disp_mutex); pv_disp_op->u4_error_code = u4_api_ret; pv_disp_op->e_pic_type = 0xFFFFFFFF; //Junk; if(u4_api_ret) { pv_disp_op->u4_error_code = 1; //put a proper error code here } else { //Release the buffer if being sent for display UWORD32 temp; UWORD32 dest_inc_Y = 0, dest_inc_UV = 0; pv_disp_op->s_disp_frm_buf.u4_y_wd = temp = MIN(ps_op_frm->u4_y_wd, ps_op_frm->u4_y_strd); pv_disp_op->s_disp_frm_buf.u4_u_wd = pv_disp_op->s_disp_frm_buf.u4_y_wd >> 1; pv_disp_op->s_disp_frm_buf.u4_v_wd = pv_disp_op->s_disp_frm_buf.u4_y_wd >> 1; pv_disp_op->s_disp_frm_buf.u4_y_ht = ps_op_frm->u4_y_ht; pv_disp_op->s_disp_frm_buf.u4_u_ht = pv_disp_op->s_disp_frm_buf.u4_y_ht >> 1; pv_disp_op->s_disp_frm_buf.u4_v_ht = pv_disp_op->s_disp_frm_buf.u4_y_ht >> 1; if(0 == ps_dec->u4_share_disp_buf) { pv_disp_op->s_disp_frm_buf.u4_y_strd = pv_disp_op->s_disp_frm_buf.u4_y_wd; pv_disp_op->s_disp_frm_buf.u4_u_strd = pv_disp_op->s_disp_frm_buf.u4_y_wd >> 1; pv_disp_op->s_disp_frm_buf.u4_v_strd = pv_disp_op->s_disp_frm_buf.u4_y_wd >> 1; } else { pv_disp_op->s_disp_frm_buf.u4_y_strd = ps_op_frm->u4_y_strd; } if(ps_dec->u4_app_disp_width) { pv_disp_op->s_disp_frm_buf.u4_y_strd = MAX( ps_dec->u4_app_disp_width, pv_disp_op->s_disp_frm_buf.u4_y_strd); } pv_disp_op->u4_error_code = 0; if(pv_disp_op->e_output_format == IV_YUV_420P) { UWORD32 i; pv_disp_op->s_disp_frm_buf.u4_u_strd = pv_disp_op->s_disp_frm_buf.u4_y_strd >> 1; pv_disp_op->s_disp_frm_buf.u4_v_strd = pv_disp_op->s_disp_frm_buf.u4_y_strd >> 1; pv_disp_op->s_disp_frm_buf.u4_u_wd = ps_op_frm->u4_y_wd >> 1; pv_disp_op->s_disp_frm_buf.u4_v_wd = ps_op_frm->u4_y_wd >> 1; if(1 == ps_dec->u4_share_disp_buf) { pv_disp_op->s_disp_frm_buf.pv_y_buf = ps_op_frm->pv_y_buf; for(i = 0; i < MAX_DISP_BUFS_NEW; i++) { UWORD8 *buf = ps_dec->disp_bufs[i].buf[0]; buf += ps_dec->disp_bufs[i].u4_ofst[0]; if(((UWORD8 *)pv_disp_op->s_disp_frm_buf.pv_y_buf - pic_buf->u2_crop_offset_y) == buf) { buf = ps_dec->disp_bufs[i].buf[1]; buf += ps_dec->disp_bufs[i].u4_ofst[1]; pv_disp_op->s_disp_frm_buf.pv_u_buf = buf + pic_buf->u2_crop_offset_uv; buf = ps_dec->disp_bufs[i].buf[2]; buf += ps_dec->disp_bufs[i].u4_ofst[2]; pv_disp_op->s_disp_frm_buf.pv_v_buf = buf + pic_buf->u2_crop_offset_uv; } } } } else if((pv_disp_op->e_output_format == IV_YUV_420SP_UV) || (pv_disp_op->e_output_format == IV_YUV_420SP_VU)) { pv_disp_op->s_disp_frm_buf.u4_u_strd = pv_disp_op->s_disp_frm_buf.u4_y_strd; pv_disp_op->s_disp_frm_buf.u4_v_strd = 0; if(1 == ps_dec->u4_share_disp_buf) { UWORD32 i; pv_disp_op->s_disp_frm_buf.pv_y_buf = ps_op_frm->pv_y_buf; for(i = 0; i < MAX_DISP_BUFS_NEW; i++) { UWORD8 *buf = ps_dec->disp_bufs[i].buf[0]; buf += ps_dec->disp_bufs[i].u4_ofst[0]; if((UWORD8 *)pv_disp_op->s_disp_frm_buf.pv_y_buf - pic_buf->u2_crop_offset_y == buf) { buf = ps_dec->disp_bufs[i].buf[1]; buf += ps_dec->disp_bufs[i].u4_ofst[1]; pv_disp_op->s_disp_frm_buf.pv_u_buf = buf + pic_buf->u2_crop_offset_uv; ; buf = ps_dec->disp_bufs[i].buf[2]; buf += ps_dec->disp_bufs[i].u4_ofst[2]; pv_disp_op->s_disp_frm_buf.pv_v_buf = buf + pic_buf->u2_crop_offset_uv; ; } } } pv_disp_op->s_disp_frm_buf.u4_u_wd = pv_disp_op->s_disp_frm_buf.u4_y_wd; pv_disp_op->s_disp_frm_buf.u4_v_wd = 0; } else if((pv_disp_op->e_output_format == IV_RGB_565) || (pv_disp_op->e_output_format == IV_YUV_422ILE)) { pv_disp_op->s_disp_frm_buf.u4_u_strd = 0; pv_disp_op->s_disp_frm_buf.u4_v_strd = 0; pv_disp_op->s_disp_frm_buf.u4_u_wd = 0; pv_disp_op->s_disp_frm_buf.u4_v_wd = 0; pv_disp_op->s_disp_frm_buf.u4_u_ht = 0; pv_disp_op->s_disp_frm_buf.u4_v_ht = 0; } } return u4_api_ret; } /*****************************************************************************/ /* Function Name : ih264d_release_display_field */ /* */ /* Description : This function releases the display field that was returned */ /* here. */ /* Inputs : ps_dec - Decoder parameters */ /* Globals : None */ /* Processing : Refer bumping process in the standard */ /* Outputs : Assigns display sequence number. */ /* Returns : None */ /* */ /* Issues : None */ /* */ /* Revision History: */ /* */ /* DD MM YYYY Author(s) Changes (Describe the changes made) */ /* 27 04 2005 NS Draft */ /* */ /*****************************************************************************/ void ih264d_release_display_field(dec_struct_t *ps_dec, ivd_get_display_frame_op_t *pv_disp_op) { if(1 == pv_disp_op->u4_error_code) { if(1 == ps_dec->u1_flushfrm) { UWORD32 i; if(1 == ps_dec->u4_share_disp_buf) { H264_MUTEX_LOCK(&ps_dec->process_disp_mutex); for(i = 0; i < (MAX_DISP_BUFS_NEW); i++) { if(1 == ps_dec->u4_disp_buf_mapping[i]) { ih264_buf_mgr_release( (buf_mgr_t *)ps_dec->pv_pic_buf_mgr, i, BUF_MGR_IO); ps_dec->u4_disp_buf_mapping[i] = 0; } } H264_MUTEX_UNLOCK(&ps_dec->process_disp_mutex); memset(ps_dec->u4_disp_buf_to_be_freed, 0, (MAX_DISP_BUFS_NEW) * sizeof(UWORD32)); for(i = 0; i < ps_dec->u1_pic_bufs; i++) ps_dec->u4_disp_buf_mapping[i] = 1; } ps_dec->u1_flushfrm = 0; } } else { H264_MUTEX_LOCK(&ps_dec->process_disp_mutex); if(0 == ps_dec->u4_share_disp_buf) { ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr, pv_disp_op->u4_disp_buf_id, BUF_MGR_IO); } else { ps_dec->u4_disp_buf_mapping[pv_disp_op->u4_disp_buf_id] = 1; } H264_MUTEX_UNLOCK(&ps_dec->process_disp_mutex); } } /*****************************************************************************/ /* Function Name : ih264d_assign_display_seq */ /* */ /* Description : This function implments bumping process. Every outgoing */ /* frame from DPB is assigned a display sequence number */ /* which increases monotonically. System looks for this */ /* number to display a frame. */ /* here. */ /* Inputs : ps_dec - Decoder parameters */ /* Globals : None */ /* Processing : Refer bumping process in the standard */ /* Outputs : Assigns display sequence number. */ /* Returns : None */ /* */ /* Issues : None */ /* */ /* Revision History: */ /* */ /* DD MM YYYY Author(s) Changes (Describe the changes made) */ /* 27 04 2005 NS Draft */ /* */ /*****************************************************************************/ WORD32 ih264d_assign_display_seq(dec_struct_t *ps_dec) { WORD32 i; WORD32 i4_min_poc; WORD32 i4_min_poc_buf_id; WORD32 i4_min_index; dpb_manager_t *ps_dpb_mgr = ps_dec->ps_dpb_mgr; WORD32 (*i4_poc_buf_id_map)[3] = ps_dpb_mgr->ai4_poc_buf_id_map; i4_min_poc = 0x7fffffff; i4_min_poc_buf_id = -1; i4_min_index = -1; if(ps_dpb_mgr->i1_poc_buf_id_entries >= ps_dec->i4_display_delay) { for(i = 0; i < MAX_FRAMES; i++) { if((i4_poc_buf_id_map[i][0] != -1) && (DO_NOT_DISP != ps_dpb_mgr->ai4_poc_buf_id_map[i][0])) { if(i4_poc_buf_id_map[i][1] < i4_min_poc) { i4_min_poc = i4_poc_buf_id_map[i][1]; i4_min_poc_buf_id = i4_poc_buf_id_map[i][0]; i4_min_index = i; } } } if((i4_min_index != -1) && (DO_NOT_DISP != i4_min_poc_buf_id)) { ps_dec->i4_cur_display_seq++; ih264_disp_mgr_add( (disp_mgr_t *)ps_dec->pv_disp_buf_mgr, i4_min_poc_buf_id, ps_dec->i4_cur_display_seq, ps_dec->apv_buf_id_pic_buf_map[i4_min_poc_buf_id]); i4_poc_buf_id_map[i4_min_index][0] = -1; i4_poc_buf_id_map[i4_min_index][1] = 0x7fffffff; ps_dpb_mgr->i1_poc_buf_id_entries--; } else if(DO_NOT_DISP == i4_min_poc_buf_id) { WORD32 i4_error_code; i4_error_code = ERROR_GAPS_IN_FRM_NUM; // i4_error_code |= 1<<IVD_CORRUPTEDDATA; return i4_error_code; } } return OK; } /*****************************************************************************/ /* */ /* Function Name : ih264d_release_display_bufs */ /* */ /* Description : This function implments bumping process when mmco = 5. */ /* Each outgoing frame from DPB is assigned a display */ /* sequence number which increases monotonically. System */ /* looks for this number to display a frame. */ /* Inputs : ps_dec - Decoder parameters */ /* Globals : None */ /* Processing : Refer bumping process in the standard for mmco = 5 */ /* Outputs : Assigns display sequence number. */ /* Returns : None */ /* */ /* Issues : None */ /* */ /* Revision History: */ /* */ /* DD MM YYYY Author(s) Changes (Describe the changes made) */ /* 27 04 2005 NS Draft */ /* */ /*****************************************************************************/ void ih264d_release_display_bufs(dec_struct_t *ps_dec) { WORD32 i, j; WORD32 i4_min_poc; WORD32 i4_min_poc_buf_id; WORD32 i4_min_index; dpb_manager_t *ps_dpb_mgr = ps_dec->ps_dpb_mgr; WORD32 (*i4_poc_buf_id_map)[3] = ps_dpb_mgr->ai4_poc_buf_id_map; i4_min_poc = 0x7fffffff; i4_min_poc_buf_id = -1; i4_min_index = -1; ih264d_delete_nonref_nondisplay_pics(ps_dpb_mgr); for(j = 0; j < ps_dpb_mgr->i1_poc_buf_id_entries; j++) { i4_min_poc = 0x7fffffff; for(i = 0; i < MAX_FRAMES; i++) { if(i4_poc_buf_id_map[i][0] != -1) { if(i4_poc_buf_id_map[i][1] < i4_min_poc) { i4_min_poc = i4_poc_buf_id_map[i][1]; i4_min_poc_buf_id = i4_poc_buf_id_map[i][0]; i4_min_index = i; } } } if(DO_NOT_DISP != i4_min_poc_buf_id) { ps_dec->i4_cur_display_seq++; ih264_disp_mgr_add( (disp_mgr_t *)ps_dec->pv_disp_buf_mgr, i4_min_poc_buf_id, ps_dec->i4_cur_display_seq, ps_dec->apv_buf_id_pic_buf_map[i4_min_poc_buf_id]); i4_poc_buf_id_map[i4_min_index][0] = -1; i4_poc_buf_id_map[i4_min_index][1] = 0x7fffffff; ps_dpb_mgr->ai4_poc_buf_id_map[i4_min_index][2] = 0; } else { i4_poc_buf_id_map[i4_min_index][0] = -1; i4_poc_buf_id_map[i4_min_index][1] = 0x7fffffff; ps_dpb_mgr->ai4_poc_buf_id_map[i4_min_index][2] = 0; } } ps_dpb_mgr->i1_poc_buf_id_entries = 0; ps_dec->i4_prev_max_display_seq = ps_dec->i4_prev_max_display_seq + ps_dec->i4_max_poc + ps_dec->u1_max_dec_frame_buffering + 1; ps_dec->i4_max_poc = 0; } /*****************************************************************************/ /* */ /* Function Name : ih264d_assign_pic_num */ /* */ /* Description : This function assigns pic num to each reference frame */ /* depending on the cur_frame_num as speified in section */ /* 8.2.4.1 */ /* */ /* Inputs : ps_dec */ /* */ /* Globals : NO globals used */ /* */ /* Processing : for all ST pictures */ /* if( FrameNum > cur_frame_num) */ /* PicNum = FrameNum - MaxFrameNum */ /* else */ /* PicNum = FrameNum */ /* */ /* Returns : void */ /* */ /* Issues : NO */ /* */ /* Revision History: */ /* */ /* DD MM YYYY Author(s) Changes (Describe the changes made) */ /* 13 07 2002 Jay Draft */ /* */ /*****************************************************************************/ void ih264d_assign_pic_num(dec_struct_t *ps_dec) { dpb_manager_t *ps_dpb_mgr; struct dpb_info_t *ps_next_dpb; WORD8 i; WORD32 i4_cur_frame_num, i4_max_frame_num; WORD32 i4_ref_frame_num; UWORD8 u1_fld_pic_flag = ps_dec->ps_cur_slice->u1_field_pic_flag; i4_max_frame_num = ps_dec->ps_cur_sps->u2_u4_max_pic_num_minus1 + 1; i4_cur_frame_num = ps_dec->ps_cur_pic->i4_frame_num; ps_dpb_mgr = ps_dec->ps_dpb_mgr; /* Start from ST head */ ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) { WORD32 i4_pic_num; i4_ref_frame_num = ps_next_dpb->ps_pic_buf->i4_frame_num; if(i4_ref_frame_num > i4_cur_frame_num) { /* RefPic Buf frame_num is before Current frame_num in decode order */ i4_pic_num = i4_ref_frame_num - i4_max_frame_num; } else { /* RefPic Buf frame_num is after Current frame_num in decode order */ i4_pic_num = i4_ref_frame_num; } ps_next_dpb->ps_pic_buf->i4_pic_num = i4_pic_num; ps_next_dpb->i4_frame_num = i4_pic_num; ps_next_dpb->ps_pic_buf->u1_long_term_frm_idx = MAX_REF_BUFS + 1; if(u1_fld_pic_flag) { /* Assign the pic num to top fields and bot fields */ ps_next_dpb->s_top_field.i4_pic_num = i4_pic_num * 2 + !(ps_dec->ps_cur_slice->u1_bottom_field_flag); ps_next_dpb->s_bot_field.i4_pic_num = i4_pic_num * 2 + ps_dec->ps_cur_slice->u1_bottom_field_flag; } /* Chase the next link */ ps_next_dpb = ps_next_dpb->ps_prev_short; } if(ps_dec->ps_cur_sps->u1_gaps_in_frame_num_value_allowed_flag && ps_dpb_mgr->u1_num_gaps) { WORD32 i4_start_frm, i4_end_frm; /* Assign pic numbers for gaps */ for(i = 0; i < MAX_FRAMES; i++) { i4_start_frm = ps_dpb_mgr->ai4_gaps_start_frm_num[i]; if(i4_start_frm != INVALID_FRAME_NUM) { if(i4_start_frm > i4_cur_frame_num) { /* gap's frame_num is before Current frame_num in decode order */ i4_start_frm -= i4_max_frame_num; } ps_dpb_mgr->ai4_gaps_start_frm_num[i] = i4_start_frm; i4_end_frm = ps_dpb_mgr->ai4_gaps_end_frm_num[i]; if(i4_end_frm > i4_cur_frame_num) { /* gap's frame_num is before Current frame_num in decode order */ i4_end_frm -= i4_max_frame_num; } ps_dpb_mgr->ai4_gaps_end_frm_num[i] = i4_end_frm; } } } } /*! ************************************************************************** * \if Function name : ih264d_update_qp \endif * * \brief * Updates the values of QP and its related entities * * \return * 0 on Success and Error code otherwise * ************************************************************************** */ WORD32 ih264d_update_qp(dec_struct_t * ps_dec, const WORD8 i1_qp) { WORD32 i_temp; i_temp = (ps_dec->u1_qp + i1_qp + 52) % 52; if((i_temp < 0) || (i_temp > 51) || (i1_qp < -26) || (i1_qp > 25)) return ERROR_INV_RANGE_QP_T; ps_dec->u1_qp = i_temp; ps_dec->u1_qp_y_rem6 = ps_dec->u1_qp % 6; ps_dec->u1_qp_y_div6 = ps_dec->u1_qp / 6; i_temp = CLIP3(0, 51, ps_dec->u1_qp + ps_dec->ps_cur_pps->i1_chroma_qp_index_offset); ps_dec->u1_qp_u_rem6 = MOD(gau1_ih264d_qp_scale_cr[12 + i_temp], 6); ps_dec->u1_qp_u_div6 = DIV(gau1_ih264d_qp_scale_cr[12 + i_temp], 6); i_temp = CLIP3(0, 51, ps_dec->u1_qp + ps_dec->ps_cur_pps->i1_second_chroma_qp_index_offset); ps_dec->u1_qp_v_rem6 = MOD(gau1_ih264d_qp_scale_cr[12 + i_temp], 6); ps_dec->u1_qp_v_div6 = DIV(gau1_ih264d_qp_scale_cr[12 + i_temp], 6); ps_dec->pu2_quant_scale_y = gau2_ih264_iquant_scale_4x4[ps_dec->u1_qp_y_rem6]; ps_dec->pu2_quant_scale_u = gau2_ih264_iquant_scale_4x4[ps_dec->u1_qp_u_rem6]; ps_dec->pu2_quant_scale_v = gau2_ih264_iquant_scale_4x4[ps_dec->u1_qp_v_rem6]; return OK; } /*****************************************************************************/ /* */ /* Function Name : ih264d_decode_gaps_in_frame_num */ /* */ /* Description : This function decodes gaps in frame number */ /* */ /* Inputs : ps_dec Decoder parameters */ /* u2_frame_num current frame number */ /* */ /* Globals : None */ /* Processing : This functionality needs to be implemented */ /* Outputs : None */ /* Returns : None */ /* */ /* Issues : Not implemented */ /* */ /* Revision History: */ /* */ /* DD MM YYYY Author(s) Changes (Describe the changes made) */ /* 06 05 2002 NS Draft */ /* */ /*****************************************************************************/ WORD32 ih264d_decode_gaps_in_frame_num(dec_struct_t *ps_dec, UWORD16 u2_frame_num) { UWORD32 u4_next_frm_num, u4_start_frm_num; UWORD32 u4_max_frm_num; pocstruct_t s_tmp_poc; WORD32 i4_poc; dec_slice_params_t *ps_cur_slice; dec_pic_params_t *ps_pic_params; WORD8 i1_gap_idx; WORD32 *i4_gaps_start_frm_num; dpb_manager_t *ps_dpb_mgr; WORD32 i4_frame_gaps; WORD8 *pi1_gaps_per_seq; WORD32 ret; ps_cur_slice = ps_dec->ps_cur_slice; if(ps_cur_slice->u1_field_pic_flag) { if(ps_dec->u2_prev_ref_frame_num == u2_frame_num) return 0; } u4_next_frm_num = ps_dec->u2_prev_ref_frame_num + 1; u4_max_frm_num = ps_dec->ps_cur_sps->u2_u4_max_pic_num_minus1 + 1; // check if(u4_next_frm_num >= u4_max_frm_num) { u4_next_frm_num -= u4_max_frm_num; } if(u4_next_frm_num == u2_frame_num) { return (0); } // check if((ps_dec->u1_nal_unit_type == IDR_SLICE_NAL) && (u4_next_frm_num >= u2_frame_num)) { return (0); } u4_start_frm_num = u4_next_frm_num; s_tmp_poc.i4_pic_order_cnt_lsb = 0; s_tmp_poc.i4_delta_pic_order_cnt_bottom = 0; s_tmp_poc.i4_pic_order_cnt_lsb = 0; s_tmp_poc.i4_delta_pic_order_cnt_bottom = 0; s_tmp_poc.i4_delta_pic_order_cnt[0] = 0; s_tmp_poc.i4_delta_pic_order_cnt[1] = 0; ps_cur_slice = ps_dec->ps_cur_slice; ps_pic_params = ps_dec->ps_cur_pps; ps_cur_slice->u1_field_pic_flag = 0; i4_frame_gaps = 0; ps_dpb_mgr = ps_dec->ps_dpb_mgr; /* Find a empty slot to store gap seqn info */ i4_gaps_start_frm_num = ps_dpb_mgr->ai4_gaps_start_frm_num; for(i1_gap_idx = 0; i1_gap_idx < MAX_FRAMES; i1_gap_idx++) { if(INVALID_FRAME_NUM == i4_gaps_start_frm_num[i1_gap_idx]) break; } if(MAX_FRAMES == i1_gap_idx) { UWORD32 i4_error_code; i4_error_code = ERROR_DBP_MANAGER_T; // i4_error_code |= 1<<IVD_CORRUPTEDDATA; return i4_error_code; } i4_poc = 0; i4_gaps_start_frm_num[i1_gap_idx] = u4_start_frm_num; ps_dpb_mgr->ai4_gaps_end_frm_num[i1_gap_idx] = u2_frame_num - 1; pi1_gaps_per_seq = ps_dpb_mgr->ai1_gaps_per_seq; pi1_gaps_per_seq[i1_gap_idx] = 0; while(u4_next_frm_num != u2_frame_num) { ih264d_delete_nonref_nondisplay_pics(ps_dpb_mgr); if(ps_pic_params->ps_sps->u1_pic_order_cnt_type) { /* allocate a picture buffer and insert it as ST node */ ret = ih264d_decode_pic_order_cnt(0, u4_next_frm_num, &ps_dec->s_prev_pic_poc, &s_tmp_poc, ps_cur_slice, ps_pic_params, 1, 0, 0, &i4_poc); 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) { ps_dec->i4_prev_max_display_seq = ps_dec->i4_prev_max_display_seq + ps_dec->i4_max_poc + ps_dec->u1_max_dec_frame_buffering + 1; ps_dec->i4_max_poc = 0; } ps_cur_slice->u1_mmco_equalto5 = 0; ps_cur_slice->u2_frame_num = u4_next_frm_num; } // check if(ps_dpb_mgr->i1_poc_buf_id_entries >= ps_dec->u1_max_dec_frame_buffering) { ret = ih264d_assign_display_seq(ps_dec); if(ret != OK) return ret; } ret = ih264d_insert_pic_in_display_list( ps_dec->ps_dpb_mgr, (WORD8) DO_NOT_DISP, (WORD32)(ps_dec->i4_prev_max_display_seq + i4_poc), u4_next_frm_num); if(ret != OK) return ret; pi1_gaps_per_seq[i1_gap_idx]++; ret = ih264d_do_mmco_for_gaps(ps_dpb_mgr, ps_dec->ps_cur_sps->u1_num_ref_frames); if(ret != OK) return ret; ih264d_delete_nonref_nondisplay_pics(ps_dpb_mgr); u4_next_frm_num++; if(u4_next_frm_num >= u4_max_frm_num) { u4_next_frm_num -= u4_max_frm_num; } i4_frame_gaps++; } return OK; } /*! ************************************************************************** * \if Function name : ih264d_create_pic_buffers \endif * * \brief * This function creates Picture Buffers. * * \return * 0 on Success and -1 on error ************************************************************************** */ WORD32 ih264d_create_pic_buffers(UWORD8 u1_num_of_buf, dec_struct_t *ps_dec) { struct pic_buffer_t *ps_pic_buf; UWORD8 i; UWORD32 u4_luma_size, u4_chroma_size; UWORD8 u1_frm = ps_dec->ps_cur_sps->u1_frame_mbs_only_flag; WORD32 j; UWORD8 *pu1_buf; ps_pic_buf = ps_dec->ps_pic_buf_base; ih264_disp_mgr_init((disp_mgr_t *)ps_dec->pv_disp_buf_mgr); ih264_buf_mgr_init((buf_mgr_t *)ps_dec->pv_pic_buf_mgr); u4_luma_size = ps_dec->u2_frm_wd_y * ps_dec->u2_frm_ht_y; u4_chroma_size = ps_dec->u2_frm_wd_uv * ps_dec->u2_frm_ht_uv; { if(ps_dec->u4_share_disp_buf == 1) { /* In case of buffers getting shared between application and library there is no need of reference memtabs. Instead of setting the i4_size to zero, it is reduced to a small i4_size to ensure that changes in the code are minimal */ if((ps_dec->u1_chroma_format == IV_YUV_420SP_UV) || (ps_dec->u1_chroma_format == IV_YUV_420SP_VU) || (ps_dec->u1_chroma_format == IV_YUV_420P)) { u4_luma_size = 64; } if(ps_dec->u1_chroma_format == IV_YUV_420SP_UV) { u4_chroma_size = 64; } } } pu1_buf = ps_dec->pu1_pic_buf_base; /* Allocate memory for refernce buffers */ for(i = 0; i < u1_num_of_buf; i++) { UWORD32 u4_offset; WORD32 buf_ret; UWORD8 *pu1_luma, *pu1_chroma; void *pv_mem_ctxt = ps_dec->pv_mem_ctxt; pu1_luma = pu1_buf; pu1_buf += ALIGN64(u4_luma_size); pu1_chroma = pu1_buf; pu1_buf += ALIGN64(u4_chroma_size); /* Offset to the start of the pic from the top left corner of the frame buffer */ if((0 == ps_dec->u4_share_disp_buf) || (NULL == ps_dec->disp_bufs[i].buf[0])) { UWORD32 pad_len_h, pad_len_v; u4_offset = ps_dec->u2_frm_wd_y * (PAD_LEN_Y_V << 1) + PAD_LEN_Y_H; ps_pic_buf->pu1_buf1 = (UWORD8 *)(pu1_luma) + u4_offset; pad_len_h = MAX(PAD_LEN_UV_H, (PAD_LEN_Y_H >> 1)); pad_len_v = MAX(PAD_LEN_UV_V, PAD_LEN_Y_V); u4_offset = ps_dec->u2_frm_wd_uv * pad_len_v + pad_len_h; ps_pic_buf->pu1_buf2 = (UWORD8 *)(pu1_chroma) + u4_offset; ps_pic_buf->pu1_buf3 = (UWORD8 *)(NULL) + u4_offset; } else { UWORD32 pad_len_h, pad_len_v; u4_offset = ps_dec->u2_frm_wd_y * (PAD_LEN_Y_V << 1) + PAD_LEN_Y_H; ps_pic_buf->pu1_buf1 = (UWORD8 *)ps_dec->disp_bufs[i].buf[0] + u4_offset; ps_dec->disp_bufs[i].u4_ofst[0] = u4_offset; if(ps_dec->u1_chroma_format == IV_YUV_420P) { pad_len_h = MAX(PAD_LEN_UV_H * YUV420SP_FACTOR, (PAD_LEN_Y_H >> 1)); pad_len_v = MAX(PAD_LEN_UV_V, PAD_LEN_Y_V); u4_offset = ps_dec->u2_frm_wd_uv * pad_len_v + pad_len_h; ps_pic_buf->pu1_buf2 = (UWORD8 *)(pu1_chroma) + u4_offset; ps_pic_buf->pu1_buf3 = (UWORD8 *)(NULL) + u4_offset; ps_dec->disp_bufs[i].u4_ofst[1] = u4_offset; ps_dec->disp_bufs[i].u4_ofst[2] = u4_offset; } else { pad_len_h = MAX(PAD_LEN_UV_H * YUV420SP_FACTOR, (PAD_LEN_Y_H >> 1)); pad_len_v = MAX(PAD_LEN_UV_V, PAD_LEN_Y_V); u4_offset = ps_dec->u2_frm_wd_uv * pad_len_v + pad_len_h; ps_pic_buf->pu1_buf2 = (UWORD8 *)(ps_dec->disp_bufs[i].buf[1]) + u4_offset; ps_pic_buf->pu1_buf3 = (UWORD8 *)(ps_dec->disp_bufs[i].buf[1]) + u4_offset; ps_dec->disp_bufs[i].u4_ofst[1] = u4_offset; ps_dec->disp_bufs[i].u4_ofst[2] = u4_offset; } } ps_pic_buf->u2_frm_ht_y = ps_dec->u2_frm_ht_y; ps_pic_buf->u2_frm_ht_uv = ps_dec->u2_frm_ht_uv; ps_pic_buf->u2_frm_wd_y = ps_dec->u2_frm_wd_y; ps_pic_buf->u2_frm_wd_uv = ps_dec->u2_frm_wd_uv; ps_pic_buf->u1_pic_buf_id = i; buf_ret = ih264_buf_mgr_add((buf_mgr_t *)ps_dec->pv_pic_buf_mgr, ps_pic_buf, i); if(0 != buf_ret) { ps_dec->i4_error_code = ERROR_BUF_MGR; return ERROR_BUF_MGR; } ps_dec->apv_buf_id_pic_buf_map[i] = (void *)ps_pic_buf; ps_pic_buf++; } if(1 == ps_dec->u4_share_disp_buf) { for(i = 0; i < u1_num_of_buf; i++) ps_dec->u4_disp_buf_mapping[i] = 1; } return OK; } /*! ************************************************************************** * \if Function name : ih264d_allocate_dynamic_bufs \endif * * \brief * This function allocates memory required by Decoder. * * \param ps_dec: Pointer to dec_struct_t. * * \return * Returns i4_status as returned by MemManager. * ************************************************************************** */ WORD16 ih264d_allocate_dynamic_bufs(dec_struct_t * ps_dec) { struct MemReq s_MemReq; struct MemBlock *p_MemBlock; pred_info_t *ps_pred_frame; dec_mb_info_t *ps_frm_mb_info; dec_slice_struct_t *ps_dec_slice_buf; UWORD8 *pu1_dec_mb_map, *pu1_recon_mb_map; UWORD16 *pu2_slice_num_map; WORD16 *pi16_res_coeff; WORD16 i16_status = 0; UWORD8 uc_frmOrFld = (1 - ps_dec->ps_cur_sps->u1_frame_mbs_only_flag); UWORD16 u4_luma_wd = ps_dec->u2_frm_wd_y; UWORD16 u4_chroma_wd = ps_dec->u2_frm_wd_uv; WORD8 c_i = 0; dec_seq_params_t *ps_sps = ps_dec->ps_cur_sps; UWORD32 u4_total_mbs = ps_sps->u2_total_num_of_mbs << uc_frmOrFld; UWORD32 u4_wd_mbs = ps_dec->u2_frm_wd_in_mbs; UWORD32 u4_ht_mbs = ps_dec->u2_frm_ht_in_mbs; UWORD32 u4_blk_wd; UWORD32 ui_size = 0; UWORD32 u4_int_scratch_size = 0, u4_ref_pred_size = 0; UWORD8 *pu1_buf; WORD32 num_entries; WORD32 size; void *pv_buf; UWORD32 u4_num_bufs; UWORD32 u4_luma_size, u4_chroma_size; void *pv_mem_ctxt = ps_dec->pv_mem_ctxt; size = u4_total_mbs; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->pu1_dec_mb_map = pv_buf; size = u4_total_mbs; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->pu1_recon_mb_map = pv_buf; size = u4_total_mbs * sizeof(UWORD16); pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->pu2_slice_num_map = pv_buf; /************************************************************/ /* Post allocation Initialisations */ /************************************************************/ 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->ps_pred_start = ps_dec->ps_pred; size = sizeof(parse_pmbarams_t) * (ps_dec->u1_recon_mb_grp); pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_parse_mb_data = pv_buf; size = sizeof(parse_part_params_t) * ((ps_dec->u1_recon_mb_grp) << 4); pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_parse_part_params = pv_buf; size = ((u4_wd_mbs * sizeof(deblkmb_neighbour_t)) << uc_frmOrFld); pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_deblk_top_mb = pv_buf; size = ((sizeof(ctxt_inc_mb_info_t)) * (((u4_wd_mbs + 1) << uc_frmOrFld) + 1)); pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->p_ctxt_inc_mb_map = pv_buf; size = (sizeof(mv_pred_t) * ps_dec->u1_recon_mb_grp * 16); pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_mv_p[0] = pv_buf; size = (sizeof(mv_pred_t) * ps_dec->u1_recon_mb_grp * 16); pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_mv_p[1] = pv_buf; { UWORD8 i; for(i = 0; i < MV_SCRATCH_BUFS; i++) { size = (sizeof(mv_pred_t) * ps_dec->u1_recon_mb_grp * 4); pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_mv_top_p[i] = pv_buf; } } size = sizeof(UWORD8) * ((u4_wd_mbs + 2) * MB_SIZE) * 2; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->pu1_y_intra_pred_line = pv_buf; memset(ps_dec->pu1_y_intra_pred_line, 0, size); ps_dec->pu1_y_intra_pred_line += MB_SIZE; size = sizeof(UWORD8) * ((u4_wd_mbs + 2) * MB_SIZE) * 2; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->pu1_u_intra_pred_line = pv_buf; memset(ps_dec->pu1_u_intra_pred_line, 0, size); ps_dec->pu1_u_intra_pred_line += MB_SIZE; size = sizeof(UWORD8) * ((u4_wd_mbs + 2) * MB_SIZE) * 2; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->pu1_v_intra_pred_line = pv_buf; memset(ps_dec->pu1_v_intra_pred_line, 0, size); ps_dec->pu1_v_intra_pred_line += MB_SIZE; if(ps_dec->u1_separate_parse) { /* Needs one extra row of info, to hold top row data */ size = sizeof(mb_neigbour_params_t) * 2 * ((u4_wd_mbs + 2) * (u4_ht_mbs + 1)); } else { size = sizeof(mb_neigbour_params_t) * 2 * ((u4_wd_mbs + 2) << uc_frmOrFld); } pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_nbr_mb_row = pv_buf; memset(ps_dec->ps_nbr_mb_row, 0, size); /* Allocate deblock MB info */ size = (u4_total_mbs + u4_wd_mbs) * sizeof(deblk_mb_t); pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_deblk_pic = pv_buf; memset(ps_dec->ps_deblk_pic, 0, size); /* Allocate frame level mb info */ size = sizeof(dec_mb_info_t) * u4_total_mbs; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_frm_mb_info = pv_buf; memset(ps_dec->ps_frm_mb_info, 0, size); /* Allocate memory for slice headers dec_slice_struct_t */ 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); if(BASE_PROFILE_IDC != ps_dec->ps_cur_sps->u1_profile_idc) { num_entries *= 2; } size = num_entries * sizeof(void *); size += PAD_MAP_IDX_POC * sizeof(void *); size *= u4_total_mbs; size += sizeof(dec_slice_struct_t) * u4_total_mbs; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_dec_slice_buf = pv_buf; memset(ps_dec->ps_dec_slice_buf, 0, size); pu1_buf = (UWORD8 *)ps_dec->ps_dec_slice_buf; pu1_buf += sizeof(dec_slice_struct_t) * u4_total_mbs; ps_dec->pv_map_ref_idx_to_poc_buf = (void *)pu1_buf; /* Allocate memory for packed pred info */ num_entries = u4_total_mbs; if(1 == ps_dec->ps_cur_sps->u1_num_ref_frames) num_entries *= 16; else num_entries *= 16 * 2; size = sizeof(pred_info_pkd_t) * num_entries; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->ps_pred_pkd = pv_buf; /* Allocate memory for coeff data */ size = MB_LUM_SIZE * sizeof(WORD16); /*For I16x16 MBs, 16 4x4 AC coeffs and 1 4x4 DC coeff TU blocks will be sent For all MBs along with 8 4x4 AC coeffs 2 2x2 DC coeff TU blocks will be sent So use 17 4x4 TU blocks for luma and 9 4x4 TU blocks for chroma */ size += u4_total_mbs * (MAX(17 * sizeof(tu_sblk4x4_coeff_data_t),4 * sizeof(tu_blk8x8_coeff_data_t)) + 9 * sizeof(tu_sblk4x4_coeff_data_t)); //32 bytes for each mb to store u1_prev_intra4x4_pred_mode and u1_rem_intra4x4_pred_mode data size += u4_total_mbs * 32; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->pi2_coeff_data = pv_buf; ps_dec->pv_pic_tu_coeff_data = (void *)(ps_dec->pi2_coeff_data + MB_LUM_SIZE); /* Allocate MV bank buffer */ { UWORD32 col_flag_buffer_size, mvpred_buffer_size; col_flag_buffer_size = ((ps_dec->u2_pic_wd * ps_dec->u2_pic_ht) >> 4); mvpred_buffer_size = sizeof(mv_pred_t) * ((ps_dec->u2_pic_wd * (ps_dec->u2_pic_ht + PAD_MV_BANK_ROW)) >> 4); u4_num_bufs = ps_dec->ps_cur_sps->u1_num_ref_frames + 1; u4_num_bufs = MIN(u4_num_bufs, ps_dec->u1_pic_bufs); u4_num_bufs = MAX(u4_num_bufs, 2); size = ALIGN64(mvpred_buffer_size) + ALIGN64(col_flag_buffer_size); size *= u4_num_bufs; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->pu1_mv_bank_buf_base = pv_buf; } /* Allocate Pic buffer */ u4_luma_size = ps_dec->u2_frm_wd_y * ps_dec->u2_frm_ht_y; u4_chroma_size = ps_dec->u2_frm_wd_uv * ps_dec->u2_frm_ht_uv; { if(ps_dec->u4_share_disp_buf == 1) { /* In case of buffers getting shared between application and library there is no need of reference memtabs. Instead of setting the i4_size to zero, it is reduced to a small i4_size to ensure that changes in the code are minimal */ if((ps_dec->u1_chroma_format == IV_YUV_420SP_UV) || (ps_dec->u1_chroma_format == IV_YUV_420SP_VU) || (ps_dec->u1_chroma_format == IV_YUV_420P)) { u4_luma_size = 64; } if(ps_dec->u1_chroma_format == IV_YUV_420SP_UV) { u4_chroma_size = 64; } } } size = ALIGN64(u4_luma_size) + ALIGN64(u4_chroma_size); size *= ps_dec->u1_pic_bufs; pv_buf = ps_dec->pf_aligned_alloc(pv_mem_ctxt, 128, size); RETURN_IF((NULL == pv_buf), IV_FAIL); ps_dec->pu1_pic_buf_base = pv_buf; /* 0th entry of CtxtIncMbMap will be always be containing default values for CABAC context representing MB not available */ ps_dec->p_ctxt_inc_mb_map += 1; /* Post allocation Increment Actions */ /***************************************************************************/ /*Initialize cabac context pointers for every SE that has fixed contextIdx */ /***************************************************************************/ { bin_ctxt_model_t * const p_cabac_ctxt_table_t = ps_dec->p_cabac_ctxt_table_t; bin_ctxt_model_t * * p_coeff_abs_level_minus1_t = ps_dec->p_coeff_abs_level_minus1_t; bin_ctxt_model_t * * p_cbf_t = ps_dec->p_cbf_t; ps_dec->p_mb_field_dec_flag_t = p_cabac_ctxt_table_t + MB_FIELD_DECODING_FLAG; ps_dec->p_prev_intra4x4_pred_mode_flag_t = p_cabac_ctxt_table_t + PREV_INTRA4X4_PRED_MODE_FLAG; ps_dec->p_rem_intra4x4_pred_mode_t = p_cabac_ctxt_table_t + REM_INTRA4X4_PRED_MODE; ps_dec->p_intra_chroma_pred_mode_t = p_cabac_ctxt_table_t + INTRA_CHROMA_PRED_MODE; ps_dec->p_mb_qp_delta_t = p_cabac_ctxt_table_t + MB_QP_DELTA; ps_dec->p_ref_idx_t = p_cabac_ctxt_table_t + REF_IDX; ps_dec->p_mvd_x_t = p_cabac_ctxt_table_t + MVD_X; ps_dec->p_mvd_y_t = p_cabac_ctxt_table_t + MVD_Y; p_cbf_t[0] = p_cabac_ctxt_table_t + CBF + 0; p_cbf_t[1] = p_cabac_ctxt_table_t + CBF + 4; p_cbf_t[2] = p_cabac_ctxt_table_t + CBF + 8; p_cbf_t[3] = p_cabac_ctxt_table_t + CBF + 12; p_cbf_t[4] = p_cabac_ctxt_table_t + CBF + 16; ps_dec->p_cbp_luma_t = p_cabac_ctxt_table_t + CBP_LUMA; ps_dec->p_cbp_chroma_t = p_cabac_ctxt_table_t + CBP_CHROMA; p_coeff_abs_level_minus1_t[LUMA_DC_CTXCAT] = p_cabac_ctxt_table_t + COEFF_ABS_LEVEL_MINUS1 + COEFF_ABS_LEVEL_CAT_0_OFFSET; p_coeff_abs_level_minus1_t[LUMA_AC_CTXCAT] = p_cabac_ctxt_table_t + COEFF_ABS_LEVEL_MINUS1 + COEFF_ABS_LEVEL_CAT_1_OFFSET; p_coeff_abs_level_minus1_t[LUMA_4X4_CTXCAT] = p_cabac_ctxt_table_t + COEFF_ABS_LEVEL_MINUS1 + COEFF_ABS_LEVEL_CAT_2_OFFSET; p_coeff_abs_level_minus1_t[CHROMA_DC_CTXCAT] = p_cabac_ctxt_table_t + COEFF_ABS_LEVEL_MINUS1 + COEFF_ABS_LEVEL_CAT_3_OFFSET; p_coeff_abs_level_minus1_t[CHROMA_AC_CTXCAT] = p_cabac_ctxt_table_t + COEFF_ABS_LEVEL_MINUS1 + COEFF_ABS_LEVEL_CAT_4_OFFSET; p_coeff_abs_level_minus1_t[LUMA_8X8_CTXCAT] = p_cabac_ctxt_table_t + COEFF_ABS_LEVEL_MINUS1_8X8 + COEFF_ABS_LEVEL_CAT_5_OFFSET; /********************************************************/ /* context for the high profile related syntax elements */ /* This is maintained seperately in s_high_profile */ /********************************************************/ { ps_dec->s_high_profile.ps_transform8x8_flag = p_cabac_ctxt_table_t + TRANSFORM_SIZE_8X8_FLAG; ps_dec->s_high_profile.ps_sigcoeff_8x8_frame = p_cabac_ctxt_table_t + SIGNIFICANT_COEFF_FLAG_8X8_FRAME; ps_dec->s_high_profile.ps_last_sigcoeff_8x8_frame = p_cabac_ctxt_table_t + LAST_SIGNIFICANT_COEFF_FLAG_8X8_FRAME; ps_dec->s_high_profile.ps_coeff_abs_levelminus1 = p_cabac_ctxt_table_t + COEFF_ABS_LEVEL_MINUS1_8X8; ps_dec->s_high_profile.ps_sigcoeff_8x8_field = p_cabac_ctxt_table_t + SIGNIFICANT_COEFF_FLAG_8X8_FIELD; ps_dec->s_high_profile.ps_last_sigcoeff_8x8_field = p_cabac_ctxt_table_t + LAST_SIGNIFICANT_COEFF_FLAG_8X8_FIELD; } } return (i16_status); } /*! ************************************************************************** * \if Function name : ih264d_free_dynamic_bufs \endif * * \brief * This function frees dynamic memory allocated by Decoder. * * \param ps_dec: Pointer to dec_struct_t. * * \return * Returns i4_status as returned by MemManager. * ************************************************************************** */ WORD16 ih264d_free_dynamic_bufs(dec_struct_t * ps_dec) { PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->pu1_bits_buf_dynamic); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_deblk_pic); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->pu1_dec_mb_map); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->pu1_recon_mb_map); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->pu2_slice_num_map); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_dec_slice_buf); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_frm_mb_info); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->pi2_coeff_data); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_parse_mb_data); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_parse_part_params); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_deblk_top_mb); if(ps_dec->p_ctxt_inc_mb_map) { ps_dec->p_ctxt_inc_mb_map -= 1; PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->p_ctxt_inc_mb_map); } PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_mv_p[0]); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_mv_p[1]); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_pred_pkd); { UWORD8 i; for(i = 0; i < MV_SCRATCH_BUFS; i++) { PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_mv_top_p[i]); } } if(ps_dec->pu1_y_intra_pred_line) { ps_dec->pu1_y_intra_pred_line -= MB_SIZE; } PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->pu1_y_intra_pred_line); if(ps_dec->pu1_u_intra_pred_line) { ps_dec->pu1_u_intra_pred_line -= MB_SIZE; } PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->pu1_u_intra_pred_line); if(ps_dec->pu1_v_intra_pred_line) { ps_dec->pu1_v_intra_pred_line -= MB_SIZE; } PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->pu1_v_intra_pred_line); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->ps_nbr_mb_row); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->pu1_mv_bank_buf_base); PS_DEC_ALIGNED_FREE(ps_dec, ps_dec->pu1_pic_buf_base); return 0; } /*! ************************************************************************** * \if Function name : ih264d_create_mv_bank \endif * * \brief * This function creates MV bank. * * \param memType : Type of memory being handled * 0: Display Buffer * 1: Decoder Buffer * 2: Internal Buffer * \param u1_num_of_buf: Number of decode or display buffers. * \param u4_wd : Frame width. * \param u4_ht : Frame Height. * \param ps_pic_buf_api : Pointer to Picture Buffer API. * \param ih264d_dec_mem_manager : Memory manager utility supplied by system. * * \return * 0 on Success and -1 on error * ************************************************************************** */ WORD32 ih264d_create_mv_bank(void *pv_dec, UWORD32 ui_width, UWORD32 ui_height) { UWORD8 i; UWORD32 col_flag_buffer_size, mvpred_buffer_size; UWORD8 *pu1_mv_buf_mgr_base, *pu1_mv_bank_base; col_mv_buf_t *ps_col_mv; mv_pred_t *ps_mv; UWORD8 *pu1_col_zero_flag_buf; dec_struct_t *ps_dec = (dec_struct_t *)pv_dec; WORD32 buf_ret; UWORD32 u4_num_bufs; UWORD8 *pu1_buf; WORD32 size; void *pv_mem_ctxt = ps_dec->pv_mem_ctxt; col_flag_buffer_size = ((ui_width * ui_height) >> 4); mvpred_buffer_size = sizeof(mv_pred_t) * ((ui_width * (ui_height + PAD_MV_BANK_ROW)) >> 4); ih264_buf_mgr_init((buf_mgr_t *)ps_dec->pv_mv_buf_mgr); ps_col_mv = ps_dec->ps_col_mv_base; u4_num_bufs = ps_dec->ps_cur_sps->u1_num_ref_frames + 1; u4_num_bufs = MIN(u4_num_bufs, ps_dec->u1_pic_bufs); u4_num_bufs = MAX(u4_num_bufs, 2); pu1_buf = ps_dec->pu1_mv_bank_buf_base; for(i = 0 ; i < u4_num_bufs ; i++) { pu1_col_zero_flag_buf = pu1_buf; pu1_buf += ALIGN64(col_flag_buffer_size); ps_mv = (mv_pred_t *)pu1_buf; pu1_buf += ALIGN64(mvpred_buffer_size); memset(ps_mv, 0, ((ui_width * OFFSET_MV_BANK_ROW) >> 4) * sizeof(mv_pred_t)); ps_mv += (ui_width*OFFSET_MV_BANK_ROW) >> 4; ps_col_mv->pv_col_zero_flag = (void *)pu1_col_zero_flag_buf; ps_col_mv->pv_mv = (void *)ps_mv; buf_ret = ih264_buf_mgr_add((buf_mgr_t *)ps_dec->pv_mv_buf_mgr, ps_col_mv, i); if(0 != buf_ret) { ps_dec->i4_error_code = ERROR_BUF_MGR; return ERROR_BUF_MGR; } ps_col_mv++; } return OK; } void ih264d_unpack_coeff4x4_dc_4x4blk(tu_sblk4x4_coeff_data_t *ps_tu_4x4, WORD16 *pi2_out_coeff_data, UWORD8 *pu1_inv_scan) { UWORD16 u2_sig_coeff_map = ps_tu_4x4->u2_sig_coeff_map; WORD32 idx; WORD16 *pi2_coeff_data = &ps_tu_4x4->ai2_level[0]; while(u2_sig_coeff_map) { idx = CLZ(u2_sig_coeff_map); idx = 31 - idx; RESET_BIT(u2_sig_coeff_map,idx); idx = pu1_inv_scan[idx]; pi2_out_coeff_data[idx] = *pi2_coeff_data++; } }