| /****************************************************************************** |
| * |
| * 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 |
| */ |
| #ifdef __ANDROID__ |
| #include "log/log.h" |
| #include <cutils/log.h> |
| #endif |
| #include "ih264_typedefs.h" |
| #include "ih264_macros.h" |
| #include "ih264_platform_macros.h" |
| #include "iv.h" |
| #include "ih264d_dpb_manager.h" |
| #include "ih264d_bitstrm.h" |
| #include "ih264d_parse_cavlc.h" |
| #include "ih264d_defs.h" |
| #include "ih264d_structs.h" |
| #include "ih264d_process_bslice.h" |
| #include "ih264d_debug.h" |
| #include "ih264d_tables.h" |
| #include "ih264d_error_handler.h" |
| #include "string.h" |
| #include "ih264d_defs.h" |
| #include "ih264_error.h" |
| #include "ih264_buf_mgr.h" |
| #include "assert.h" |
| |
| /*! |
| *************************************************************************** |
| * \file ih264d_dpb_mgr.c |
| * |
| * \brief |
| * Functions for managing the decoded picture buffer |
| * |
| * Detailed_description |
| * |
| * \date |
| * 19-12-2002 |
| * |
| * \author Sriram Sethuraman |
| *************************************************************************** |
| */ |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_init_ref_bufs \endif |
| * |
| * \brief |
| * Called at the start for initialization. |
| * |
| * \return |
| * none |
| ************************************************************************** |
| */ |
| void ih264d_init_ref_bufs(dpb_manager_t *ps_dpb_mgr) |
| { |
| UWORD32 i; |
| struct dpb_info_t *ps_dpb_info = ps_dpb_mgr->as_dpb_info; |
| for(i = 0; i < MAX_REF_BUFS; i++) |
| { |
| ps_dpb_info[i].u1_used_as_ref = UNUSED_FOR_REF; |
| ps_dpb_info[i].u1_lt_idx = MAX_REF_BUFS + 1; |
| ps_dpb_info[i].ps_prev_short = NULL; |
| ps_dpb_info[i].ps_prev_long = NULL; |
| ps_dpb_info[i].ps_pic_buf = NULL; |
| ps_dpb_info[i].s_top_field.u1_reference_info = UNUSED_FOR_REF; |
| ps_dpb_info[i].s_bot_field.u1_reference_info = UNUSED_FOR_REF; |
| ps_dpb_info[i].s_top_field.u1_long_term_frame_idx = MAX_REF_BUFS + 1; |
| ps_dpb_info[i].s_bot_field.u1_long_term_frame_idx = MAX_REF_BUFS + 1; |
| |
| } |
| ps_dpb_mgr->u1_num_st_ref_bufs = ps_dpb_mgr->u1_num_lt_ref_bufs = 0; |
| ps_dpb_mgr->ps_dpb_st_head = NULL; |
| ps_dpb_mgr->ps_dpb_ht_head = NULL; |
| ps_dpb_mgr->i1_gaps_deleted = 0; |
| ps_dpb_mgr->i1_poc_buf_id_entries = 0; |
| |
| ps_dpb_mgr->u1_num_gaps = 0; |
| for(i = 0; i < MAX_FRAMES; i++) |
| { |
| ps_dpb_mgr->ai4_gaps_start_frm_num[i] = INVALID_FRAME_NUM; |
| ps_dpb_mgr->ai4_gaps_end_frm_num[i] = 0; |
| ps_dpb_mgr->ai1_gaps_per_seq[i] = 0; |
| ps_dpb_mgr->ai4_poc_buf_id_map[i][0] = -1; |
| ps_dpb_mgr->ai4_poc_buf_id_map[i][1] = 0x7fffffff; |
| ps_dpb_mgr->ai4_poc_buf_id_map[i][2] = 0; |
| } |
| |
| } |
| |
| void ih264d_free_ref_pic_mv_bufs(void* pv_dec, UWORD8 pic_buf_id) |
| { |
| dec_struct_t *ps_dec = (dec_struct_t *)pv_dec; |
| |
| if((pic_buf_id == ps_dec->u1_pic_buf_id) && |
| ps_dec->ps_cur_slice->u1_field_pic_flag && |
| (ps_dec->u1_top_bottom_decoded == 0)) |
| { |
| return; |
| } |
| |
| ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr, |
| pic_buf_id, |
| BUF_MGR_REF); |
| ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_mv_buf_mgr, |
| ps_dec->au1_pic_buf_id_mv_buf_id_map[pic_buf_id], |
| BUF_MGR_REF); |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_delete_lt_node \endif |
| * |
| * \brief |
| * Delete a buffer with a long term index from the LT linked list |
| * |
| * \return |
| * none |
| ************************************************************************** |
| */ |
| WORD32 ih264d_delete_lt_node(dpb_manager_t *ps_dpb_mgr, |
| UWORD32 u4_lt_idx, |
| UWORD8 u1_fld_pic_flag, |
| struct dpb_info_t *ps_lt_node_to_insert, |
| WORD32 *pi4_status) |
| { |
| *pi4_status = 0; |
| if(ps_dpb_mgr->u1_num_lt_ref_bufs > 0) |
| { |
| WORD32 i; |
| struct dpb_info_t *ps_next_dpb; |
| /* ps_unmark_node points to the node to be removed */ |
| /* from long term list. */ |
| struct dpb_info_t *ps_unmark_node; |
| //Find the node with matching LTIndex |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_ht_head; |
| if(ps_next_dpb->u1_lt_idx == u4_lt_idx) |
| { |
| ps_unmark_node = ps_next_dpb; |
| } |
| else |
| { |
| for(i = 1; i < ps_dpb_mgr->u1_num_lt_ref_bufs; i++) |
| { |
| if(ps_next_dpb->ps_prev_long->u1_lt_idx == u4_lt_idx) |
| break; |
| ps_next_dpb = ps_next_dpb->ps_prev_long; |
| } |
| if(i == ps_dpb_mgr->u1_num_lt_ref_bufs) |
| *pi4_status = 1; |
| else |
| ps_unmark_node = ps_next_dpb->ps_prev_long; |
| } |
| |
| if(*pi4_status == 0) |
| { |
| if(u1_fld_pic_flag) |
| { |
| if(ps_lt_node_to_insert != ps_unmark_node) |
| { |
| UWORD8 u1_deleted = 0; |
| /* for the ps_unmark_node mark the corresponding field */ |
| /* field as unused for reference */ |
| |
| if(ps_unmark_node->s_top_field.u1_long_term_frame_idx |
| == u4_lt_idx) |
| { |
| ps_unmark_node->s_top_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ps_unmark_node->s_top_field.u1_long_term_frame_idx = |
| MAX_REF_BUFS + 1; |
| u1_deleted = 1; |
| } |
| if(ps_unmark_node->s_bot_field.u1_long_term_frame_idx |
| == u4_lt_idx) |
| { |
| ps_unmark_node->s_bot_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ps_unmark_node->s_bot_field.u1_long_term_frame_idx = |
| MAX_REF_BUFS + 1; |
| u1_deleted = 1; |
| } |
| |
| if(!u1_deleted) |
| { |
| |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| |
| return i4_error_code; |
| } |
| } |
| |
| ps_unmark_node->u1_used_as_ref = |
| ps_unmark_node->s_top_field.u1_reference_info |
| | ps_unmark_node->s_bot_field.u1_reference_info; |
| } |
| else |
| ps_unmark_node->u1_used_as_ref = UNUSED_FOR_REF; |
| |
| if(UNUSED_FOR_REF == ps_unmark_node->u1_used_as_ref) |
| { |
| if(ps_unmark_node == ps_dpb_mgr->ps_dpb_ht_head) |
| ps_dpb_mgr->ps_dpb_ht_head = ps_next_dpb->ps_prev_long; |
| |
| ps_unmark_node->u1_lt_idx = MAX_REF_BUFS + 1; |
| ps_unmark_node->s_top_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ps_unmark_node->s_bot_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| // Release the physical buffer |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_unmark_node->u1_buf_id); |
| ps_next_dpb->ps_prev_long = ps_unmark_node->ps_prev_long; //update link |
| ps_unmark_node->ps_prev_long = NULL; |
| ps_dpb_mgr->u1_num_lt_ref_bufs--; //decrement LT buf count |
| } |
| } |
| } |
| return OK; |
| } |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_insert_lt_node \endif |
| * |
| * \brief |
| * Insert a buffer into the LT linked list at a given LT index |
| * |
| * \return |
| * none |
| ************************************************************************** |
| */ |
| WORD32 ih264d_insert_lt_node(dpb_manager_t *ps_dpb_mgr, |
| struct dpb_info_t *ps_mov_node, |
| UWORD32 u4_lt_idx, |
| UWORD8 u1_fld_pic_flag) |
| { |
| UWORD8 u1_mark_top_field_long_term = 0; |
| UWORD8 u1_mark_bot_field_long_term = 0; |
| |
| { |
| if(u1_fld_pic_flag) |
| { |
| /* Assign corresponding field (top or bottom) long_term_frame_idx */ |
| |
| if((ps_mov_node->s_top_field.u1_reference_info == IS_LONG_TERM) |
| && (ps_mov_node->s_bot_field.u1_reference_info |
| == IS_LONG_TERM)) |
| { |
| if(ps_mov_node->u1_lt_idx == u4_lt_idx) |
| u1_mark_bot_field_long_term = 1; |
| else |
| { |
| |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| |
| return i4_error_code; |
| |
| } |
| } |
| else if(ps_mov_node->s_top_field.u1_reference_info == IS_LONG_TERM) |
| { |
| u1_mark_top_field_long_term = 1; |
| } |
| |
| if(!(u1_mark_top_field_long_term || u1_mark_bot_field_long_term)) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| } |
| else |
| { |
| ps_mov_node->s_top_field.u1_reference_info = IS_LONG_TERM; |
| ps_mov_node->s_bot_field.u1_reference_info = IS_LONG_TERM; |
| ps_mov_node->s_top_field.u1_long_term_frame_idx = u4_lt_idx; |
| ps_mov_node->s_bot_field.u1_long_term_frame_idx = u4_lt_idx; |
| u1_mark_bot_field_long_term = 1; |
| u1_mark_top_field_long_term = 1; |
| } |
| |
| ps_mov_node->u1_lt_idx = u4_lt_idx; //Assign the LT index to the node |
| ps_mov_node->ps_pic_buf->u1_long_term_frm_idx = u4_lt_idx; |
| ps_mov_node->u1_used_as_ref = IS_LONG_TERM; |
| |
| /* Insert the new long term in the LT list with u4_lt_idx */ |
| /* in ascending order. */ |
| if(ps_dpb_mgr->u1_num_lt_ref_bufs > 0) |
| { |
| struct dpb_info_t *ps_next_dpb = ps_dpb_mgr->ps_dpb_ht_head; |
| if(u4_lt_idx < ps_next_dpb->u1_lt_idx) |
| { |
| //LTIndex to be inserted is the smallest LT index |
| //Update head and point prev to the next higher index |
| ps_mov_node->ps_prev_long = ps_next_dpb; |
| ps_dpb_mgr->ps_dpb_ht_head = ps_mov_node; |
| } |
| else |
| { |
| WORD32 i; |
| struct dpb_info_t *ps_nxtDPB = ps_next_dpb; |
| ps_next_dpb = ps_next_dpb->ps_prev_long; |
| for(i = 1; i < ps_dpb_mgr->u1_num_lt_ref_bufs; i++) |
| { |
| if(ps_next_dpb->u1_lt_idx > u4_lt_idx) |
| break; |
| ps_nxtDPB = ps_next_dpb; |
| ps_next_dpb = ps_next_dpb->ps_prev_long; |
| } |
| |
| ps_nxtDPB->ps_prev_long = ps_mov_node; |
| ps_mov_node->ps_prev_long = ps_next_dpb; |
| } |
| } |
| else |
| { |
| ps_dpb_mgr->ps_dpb_ht_head = ps_mov_node; |
| ps_mov_node->ps_prev_long = NULL; |
| } |
| /* Identify the picture buffer as a long term picture buffer */ |
| ps_mov_node->ps_pic_buf->u1_is_short = 0; |
| |
| /* Increment LT buf count only if new LT node inserted */ |
| /* If Increment during top_field is done, don't increment */ |
| /* for bottom field, as both them are part of same pic. */ |
| if(u1_mark_bot_field_long_term) |
| ps_dpb_mgr->u1_num_lt_ref_bufs++; |
| |
| } |
| return OK; |
| } |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_insert_st_node \endif |
| * |
| * \brief |
| * Adds a short term reference picture into the ST linked list |
| * |
| * \return |
| * None |
| * |
| * \note |
| * Called only for a new coded picture with nal_ref_idc!=0 |
| ************************************************************************** |
| */ |
| WORD32 ih264d_insert_st_node(dpb_manager_t *ps_dpb_mgr, |
| struct pic_buffer_t *ps_pic_buf, |
| UWORD8 u1_buf_id, |
| UWORD32 u4_cur_pic_num) |
| { |
| WORD32 i; |
| struct dpb_info_t *ps_dpb_info = ps_dpb_mgr->as_dpb_info; |
| UWORD8 u1_picture_type = ps_pic_buf->u1_picturetype; |
| /* Find an unused dpb location */ |
| for(i = 0; i < MAX_REF_BUFS; i++) |
| { |
| if((ps_dpb_info[i].ps_pic_buf == ps_pic_buf) |
| && ps_dpb_info[i].u1_used_as_ref) |
| { |
| /*signal an error in the case of frame pic*/ |
| if(ps_dpb_info[i].ps_pic_buf->u1_pic_type == FRM_PIC) |
| { |
| return ERROR_DBP_MANAGER_T; |
| } |
| else |
| { |
| /* Can occur only for field bottom pictures */ |
| ps_dpb_info[i].s_bot_field.u1_reference_info = IS_SHORT_TERM; |
| return OK; |
| } |
| } |
| |
| if((ps_dpb_info[i].u1_used_as_ref == UNUSED_FOR_REF) |
| && (ps_dpb_info[i].s_top_field.u1_reference_info |
| == UNUSED_FOR_REF) |
| && (ps_dpb_info[i].s_bot_field.u1_reference_info |
| == UNUSED_FOR_REF)) |
| break; |
| } |
| if(i == MAX_REF_BUFS) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| |
| /* Create dpb info */ |
| ps_dpb_info[i].ps_pic_buf = ps_pic_buf; |
| ps_dpb_info[i].ps_prev_short = ps_dpb_mgr->ps_dpb_st_head; |
| ps_dpb_info[i].u1_buf_id = u1_buf_id; |
| ps_dpb_info[i].u1_used_as_ref = TRUE; |
| ps_dpb_info[i].u1_lt_idx = MAX_REF_BUFS + 1; |
| ps_dpb_info[i].i4_frame_num = u4_cur_pic_num; |
| ps_dpb_info[i].ps_pic_buf->i4_frame_num = u4_cur_pic_num; |
| |
| /* update the head node of linked list to point to the cur Pic */ |
| ps_dpb_mgr->ps_dpb_st_head = ps_dpb_info + i; |
| |
| // Increment Short term bufCount |
| ps_dpb_mgr->u1_num_st_ref_bufs++; |
| /* Identify the picture as a short term picture buffer */ |
| ps_pic_buf->u1_is_short = IS_SHORT_TERM; |
| |
| if((u1_picture_type & 0x03) == FRM_PIC) |
| { |
| ps_dpb_info[i].u1_used_as_ref = IS_SHORT_TERM; |
| ps_dpb_info[i].s_top_field.u1_reference_info = IS_SHORT_TERM; |
| ps_dpb_info[i].s_bot_field.u1_reference_info = IS_SHORT_TERM; |
| } |
| |
| if((u1_picture_type & 0x03) == TOP_FLD) |
| ps_dpb_info[i].s_top_field.u1_reference_info = IS_SHORT_TERM; |
| |
| if((u1_picture_type & 0x03) == BOT_FLD) |
| ps_dpb_info[i].s_bot_field.u1_reference_info = IS_SHORT_TERM; |
| |
| return OK; |
| } |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_delete_st_node_or_make_lt \endif |
| * |
| * \brief |
| * Delete short term ref with a given picNum from the ST linked list or |
| * make it an LT node |
| * |
| * \return |
| * 0 - if successful; -1 - otherwise |
| * |
| * \note |
| * Common parts to MMCO==1 and MMCO==3 have been combined here |
| ************************************************************************** |
| */ |
| WORD32 ih264d_delete_st_node_or_make_lt(dpb_manager_t *ps_dpb_mgr, |
| WORD32 i4_pic_num, |
| UWORD32 u4_lt_idx, |
| UWORD8 u1_fld_pic_flag) |
| { |
| WORD32 i; |
| struct dpb_info_t *ps_next_dpb; |
| WORD32 i4_frame_num = i4_pic_num; |
| struct dpb_info_t *ps_unmark_node = NULL; |
| UWORD8 u1_del_node = 0, u1_del_st = 0; |
| UWORD8 u1_reference_type = UNUSED_FOR_REF; |
| WORD32 ret; |
| |
| if(u1_fld_pic_flag) |
| { |
| i4_frame_num = i4_frame_num >> 1; |
| |
| if(u4_lt_idx == (MAX_REF_BUFS + 1)) |
| u1_reference_type = UNUSED_FOR_REF; |
| else |
| u1_reference_type = IS_LONG_TERM; |
| } |
| |
| //Find the node with matching picNum |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| if((WORD32)ps_next_dpb->i4_frame_num == i4_frame_num) |
| { |
| ps_unmark_node = ps_next_dpb; |
| } |
| else |
| { |
| for(i = 1; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| { |
| if((WORD32)ps_next_dpb->ps_prev_short->i4_frame_num == i4_frame_num) |
| break; |
| ps_next_dpb = ps_next_dpb->ps_prev_short; |
| } |
| |
| if(i == ps_dpb_mgr->u1_num_st_ref_bufs) |
| { |
| if(ps_dpb_mgr->u1_num_gaps) |
| { |
| ret = ih264d_delete_gap_frm_mmco(ps_dpb_mgr, i4_frame_num, &u1_del_st); |
| if(ret != OK) |
| return ret; |
| } |
| else |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| |
| return i4_error_code; |
| } |
| |
| if(u1_del_st) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| else |
| { |
| return 0; |
| } |
| } |
| else |
| ps_unmark_node = ps_next_dpb->ps_prev_short; |
| } |
| |
| if(u1_fld_pic_flag) |
| { |
| /* Mark the corresponding field ( top or bot) as */ |
| /* UNUSED_FOR_REF or IS_LONG_TERM depending on */ |
| /* u1_reference_type. */ |
| if(ps_unmark_node->s_top_field.i4_pic_num == i4_pic_num) |
| { |
| ps_unmark_node->s_top_field.u1_reference_info = u1_reference_type; |
| ps_unmark_node->s_top_field.u1_long_term_frame_idx = u4_lt_idx; |
| { |
| UWORD8 *pu1_src = ps_unmark_node->ps_pic_buf->pu1_col_zero_flag; |
| WORD32 i4_size = ((ps_dpb_mgr->u2_pic_wd |
| * ps_dpb_mgr->u2_pic_ht) >> 5); |
| /* memset the colocated zero u4_flag buffer */ |
| memset(pu1_src, 0, i4_size); |
| } |
| } |
| |
| else if(ps_unmark_node->s_bot_field.i4_pic_num == i4_pic_num) |
| { |
| |
| ps_unmark_node->s_bot_field.u1_reference_info = u1_reference_type; |
| ps_unmark_node->s_bot_field.u1_long_term_frame_idx = u4_lt_idx; |
| { |
| UWORD8 *pu1_src = |
| ps_unmark_node->ps_pic_buf->pu1_col_zero_flag |
| + ((ps_dpb_mgr->u2_pic_wd |
| * ps_dpb_mgr->u2_pic_ht) |
| >> 5); |
| WORD32 i4_size = ((ps_dpb_mgr->u2_pic_wd |
| * ps_dpb_mgr->u2_pic_ht) >> 5); |
| /* memset the colocated zero u4_flag buffer */ |
| memset(pu1_src, 0, i4_size); |
| } |
| } |
| ps_unmark_node->u1_used_as_ref = |
| ps_unmark_node->s_top_field.u1_reference_info |
| | ps_unmark_node->s_bot_field.u1_reference_info; |
| } |
| else |
| { |
| ps_unmark_node->u1_used_as_ref = UNUSED_FOR_REF; |
| ps_unmark_node->s_top_field.u1_reference_info = UNUSED_FOR_REF; |
| ps_unmark_node->s_bot_field.u1_reference_info = UNUSED_FOR_REF; |
| |
| { |
| UWORD8 *pu1_src = ps_unmark_node->ps_pic_buf->pu1_col_zero_flag; |
| |
| WORD32 i4_size = ((ps_dpb_mgr->u2_pic_wd |
| * ps_dpb_mgr->u2_pic_ht) >> 4); |
| /* memset the colocated zero u4_flag buffer */ |
| memset(pu1_src, 0, i4_size); |
| } |
| } |
| |
| if(!(ps_unmark_node->u1_used_as_ref & IS_SHORT_TERM)) |
| { |
| if(ps_unmark_node == ps_dpb_mgr->ps_dpb_st_head) |
| ps_dpb_mgr->ps_dpb_st_head = ps_next_dpb->ps_prev_short; |
| else |
| ps_next_dpb->ps_prev_short = ps_unmark_node->ps_prev_short; //update link |
| ps_dpb_mgr->u1_num_st_ref_bufs--; //decrement ST buf count |
| u1_del_node = 1; |
| } |
| |
| if(u4_lt_idx == MAX_REF_BUFS + 1) |
| { |
| if(u1_del_node) |
| { |
| // Release the physical buffer |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_unmark_node->u1_buf_id); |
| ps_unmark_node->ps_prev_short = NULL; |
| } |
| } |
| else |
| { |
| WORD32 i4_status; |
| //If another node has the same LT index, delete that node |
| ret = ih264d_delete_lt_node(ps_dpb_mgr, u4_lt_idx, |
| u1_fld_pic_flag, ps_unmark_node, &i4_status); |
| if(ret != OK) |
| return ret; |
| // Now insert the short term node as a long term node |
| ret = ih264d_insert_lt_node(ps_dpb_mgr, ps_unmark_node, u4_lt_idx, |
| u1_fld_pic_flag); |
| if(ret != OK) |
| return ret; |
| } |
| return OK; |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_reset_ref_bufs \endif |
| * |
| * \brief |
| * Called if MMCO==5/7 or on the first slice of an IDR picture |
| * |
| * \return |
| * none |
| ************************************************************************** |
| */ |
| void ih264d_reset_ref_bufs(dpb_manager_t *ps_dpb_mgr) |
| { |
| WORD32 i; |
| struct dpb_info_t *ps_dpb_info = ps_dpb_mgr->as_dpb_info; |
| |
| for(i = 0; i < MAX_REF_BUFS; i++) |
| { |
| if(ps_dpb_info[i].u1_used_as_ref) |
| { |
| ps_dpb_info[i].u1_used_as_ref = UNUSED_FOR_REF; |
| ps_dpb_info[i].u1_lt_idx = MAX_REF_BUFS + 1; |
| ps_dpb_info[i].ps_prev_short = NULL; |
| ps_dpb_info[i].ps_prev_long = NULL; |
| ps_dpb_info[i].ps_pic_buf = NULL; |
| ps_dpb_info[i].s_top_field.u1_reference_info = UNUSED_FOR_REF; |
| ps_dpb_info[i].s_bot_field.u1_reference_info = UNUSED_FOR_REF; |
| ps_dpb_info[i].s_top_field.u1_long_term_frame_idx = MAX_REF_BUFS + 1; |
| ps_dpb_info[i].s_bot_field.u1_long_term_frame_idx = MAX_REF_BUFS + 1; |
| |
| //Release physical buffer |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_dpb_info[i].u1_buf_id); |
| } |
| } |
| ps_dpb_mgr->u1_num_st_ref_bufs = ps_dpb_mgr->u1_num_lt_ref_bufs = 0; |
| ps_dpb_mgr->ps_dpb_st_head = NULL; |
| ps_dpb_mgr->ps_dpb_ht_head = NULL; |
| |
| /* release all gaps */ |
| ps_dpb_mgr->u1_num_gaps = 0; |
| for(i = 0; i < MAX_FRAMES; i++) |
| { |
| ps_dpb_mgr->ai4_gaps_start_frm_num[i] = INVALID_FRAME_NUM; |
| ps_dpb_mgr->ai4_gaps_end_frm_num[i] = 0; |
| ps_dpb_mgr->ai1_gaps_per_seq[i] = 0; |
| } |
| } |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : Name \endif |
| * |
| * \brief |
| * create the default index list after an MMCO |
| * |
| * \return |
| * 0 - if no_error; -1 - error |
| * |
| ************************************************************************** |
| */ |
| WORD32 ih264d_update_default_index_list(dpb_manager_t *ps_dpb_mgr) |
| { |
| WORD32 i; |
| struct dpb_info_t *ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| |
| for(i = 0; i < ps_dpb_mgr->u1_num_st_ref_bufs; i++) |
| { |
| ps_dpb_mgr->ps_def_dpb[i] = ps_next_dpb->ps_pic_buf; |
| ps_next_dpb = ps_next_dpb->ps_prev_short; |
| } |
| |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_ht_head; |
| for(;i< ps_dpb_mgr->u1_num_st_ref_bufs + ps_dpb_mgr->u1_num_lt_ref_bufs; i++) |
| { |
| ps_dpb_mgr->ps_def_dpb[i] = ps_next_dpb->ps_pic_buf; |
| ps_next_dpb = ps_next_dpb->ps_prev_long; |
| } |
| return 0; |
| } |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ref_idx_reordering \endif |
| * |
| * \brief |
| * Parse the bitstream and reorder indices for the current slice |
| * |
| * \return |
| * 0 - if no_error; -1 - error |
| * |
| * \note |
| * Called only if ref_idx_reordering_flag_l0 is decoded as 1 |
| * Remove error checking for unmatching picNum or LTIndex later (if not needed) |
| * \para |
| * This section implements 7.3.3.1 and 8.2.6.4 |
| * Uses the default index list as the starting point and |
| * remaps the picNums sent to the next higher index in the |
| * modified list. The unmodified ones are copied from the |
| * default to modified list retaining their order in the default list. |
| * |
| ************************************************************************** |
| */ |
| WORD32 ih264d_ref_idx_reordering(dec_struct_t *ps_dec, UWORD8 uc_lx) |
| { |
| dpb_manager_t *ps_dpb_mgr = ps_dec->ps_dpb_mgr; |
| UWORD16 u4_cur_pic_num = ps_dec->ps_cur_slice->u2_frame_num; |
| /*< Maximum Picture Number Minus 1 */ |
| UWORD16 ui_max_frame_num = |
| ps_dec->ps_cur_sps->u2_u4_max_pic_num_minus1 + 1; |
| |
| WORD32 i, count = 0; |
| UWORD32 ui_remapIdc, ui_nextUev; |
| WORD16 u2_pred_frame_num = u4_cur_pic_num; |
| WORD32 i_temp; |
| UWORD16 u2_def_mod_flag = 0; /* Flag to keep track of which indices have been remapped */ |
| UWORD8 modCount = 0; |
| UWORD32 *pu4_bitstrm_buf = ps_dec->ps_bitstrm->pu4_buffer; |
| UWORD32 *pu4_bitstrm_ofst = &ps_dec->ps_bitstrm->u4_ofst; |
| dec_slice_params_t *ps_cur_slice = ps_dec->ps_cur_slice; |
| UWORD8 u1_field_pic_flag = ps_cur_slice->u1_field_pic_flag; |
| |
| if(u1_field_pic_flag) |
| { |
| u4_cur_pic_num = u4_cur_pic_num * 2 + 1; |
| ui_max_frame_num = ui_max_frame_num * 2; |
| } |
| |
| u2_pred_frame_num = u4_cur_pic_num; |
| |
| ui_remapIdc = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| |
| while((ui_remapIdc != 3) |
| && (count < ps_cur_slice->u1_num_ref_idx_lx_active[uc_lx])) |
| { |
| ui_nextUev = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| if(ui_remapIdc != 2) |
| { |
| ui_nextUev = ui_nextUev + 1; |
| if(ui_remapIdc == 0) |
| { |
| // diffPicNum is -ve |
| i_temp = u2_pred_frame_num - ui_nextUev; |
| if(i_temp < 0) |
| i_temp += ui_max_frame_num; |
| } |
| else |
| { |
| // diffPicNum is +ve |
| i_temp = u2_pred_frame_num + ui_nextUev; |
| if(i_temp >= ui_max_frame_num) |
| i_temp -= ui_max_frame_num; |
| } |
| /* Find the dpb with the matching picNum (picNum==frameNum for framePic) */ |
| |
| if(i_temp > u4_cur_pic_num) |
| i_temp = i_temp - ui_max_frame_num; |
| |
| for(i = 0; i < (ps_cur_slice->u1_initial_list_size[uc_lx]); i++) |
| { |
| if(ps_dpb_mgr->ps_init_dpb[uc_lx][i]->i4_pic_num == i_temp) |
| break; |
| } |
| if(i == (ps_cur_slice->u1_initial_list_size[uc_lx])) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| |
| u2_def_mod_flag |= (1 << i); |
| ps_dpb_mgr->ps_mod_dpb[uc_lx][modCount++] = |
| ps_dpb_mgr->ps_init_dpb[uc_lx][i]; |
| u2_pred_frame_num = i_temp; //update predictor to be the picNum just obtained |
| } |
| else //2 |
| { |
| UWORD8 u1_lt_idx = (UWORD8)ui_nextUev; |
| |
| for(i = 0; i < (ps_cur_slice->u1_initial_list_size[uc_lx]); i++) |
| { |
| if(!ps_dpb_mgr->ps_init_dpb[uc_lx][i]->u1_is_short) |
| { |
| if(ps_dpb_mgr->ps_init_dpb[uc_lx][i]->u1_long_term_pic_num |
| == u1_lt_idx) |
| break; |
| } |
| } |
| if(i == (ps_cur_slice->u1_initial_list_size[uc_lx])) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| |
| u2_def_mod_flag |= (1 << i); |
| ps_dpb_mgr->ps_mod_dpb[uc_lx][modCount++] = |
| ps_dpb_mgr->ps_init_dpb[uc_lx][i]; |
| } |
| |
| ui_remapIdc = ih264d_uev(pu4_bitstrm_ofst, pu4_bitstrm_buf); |
| /* Get the remapping_idc - 0/1/2/3 */ |
| count++; |
| } |
| |
| //Handle the ref indices that were not remapped |
| for(i = 0; i < (ps_cur_slice->u1_num_ref_idx_lx_active[uc_lx]); i++) |
| { |
| if(!(u2_def_mod_flag & (1 << i))) |
| ps_dpb_mgr->ps_mod_dpb[uc_lx][modCount++] = |
| ps_dpb_mgr->ps_init_dpb[uc_lx][i]; |
| } |
| return OK; |
| } |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_read_mmco_commands \endif |
| * |
| * \brief |
| * Parses MMCO commands and stores them in a structure for later use. |
| * |
| * \return |
| * 0 - No error; -1 - Error |
| * |
| * \note |
| * This function stores MMCO commands in structure only for the first time. |
| * In case of MMCO commands being issued for same Picture Number, they are |
| * just parsed and not stored them in the structure. |
| * |
| ************************************************************************** |
| */ |
| WORD32 ih264d_read_mmco_commands(struct _DecStruct * ps_dec) |
| { |
| dec_bit_stream_t *ps_bitstrm = ps_dec->ps_bitstrm; |
| dpb_commands_t *ps_dpb_cmds = &(ps_dec->s_dpb_cmds_scratch); |
| dec_slice_params_t * ps_slice = ps_dec->ps_cur_slice; |
| WORD32 j; |
| UWORD8 u1_buf_mode; |
| struct MMCParams *ps_mmc_params; |
| UWORD32 *pu4_bitstrm_buf = ps_dec->ps_bitstrm->pu4_buffer; |
| UWORD32 *pu4_bitstrm_ofst = &ps_bitstrm->u4_ofst; |
| UWORD32 u4_bit_ofst = ps_dec->ps_bitstrm->u4_ofst; |
| |
| ps_slice->u1_mmco_equalto5 = 0; |
| { |
| if(ps_dec->u1_nal_unit_type == IDR_SLICE_NAL) |
| { |
| ps_slice->u1_no_output_of_prior_pics_flag = |
| ih264d_get_bit_h264(ps_bitstrm); |
| COPYTHECONTEXT("SH: no_output_of_prior_pics_flag", |
| ps_slice->u1_no_output_of_prior_pics_flag); |
| ps_slice->u1_long_term_reference_flag = ih264d_get_bit_h264( |
| ps_bitstrm); |
| COPYTHECONTEXT("SH: long_term_reference_flag", |
| ps_slice->u1_long_term_reference_flag); |
| ps_dpb_cmds->u1_idr_pic = 1; |
| ps_dpb_cmds->u1_no_output_of_prior_pics_flag = |
| ps_slice->u1_no_output_of_prior_pics_flag; |
| ps_dpb_cmds->u1_long_term_reference_flag = |
| ps_slice->u1_long_term_reference_flag; |
| } |
| else |
| { |
| u1_buf_mode = ih264d_get_bit_h264(ps_bitstrm); //0 - sliding window; 1 - arbitrary |
| COPYTHECONTEXT("SH: adaptive_ref_pic_buffering_flag", u1_buf_mode); |
| ps_dpb_cmds->u1_buf_mode = u1_buf_mode; |
| j = 0; |
| |
| if(u1_buf_mode == 1) |
| { |
| UWORD32 u4_mmco; |
| UWORD32 u4_diff_pic_num; |
| UWORD32 u4_lt_idx, u4_max_lt_idx; |
| |
| u4_mmco = ih264d_uev(pu4_bitstrm_ofst, |
| pu4_bitstrm_buf); |
| while(u4_mmco != END_OF_MMCO) |
| { |
| if (j >= MAX_REF_BUFS) |
| { |
| #ifdef __ANDROID__ |
| ALOGE("b/25818142"); |
| android_errorWriteLog(0x534e4554, "25818142"); |
| #endif |
| ps_dpb_cmds->u1_num_of_commands = 0; |
| return -1; |
| } |
| ps_mmc_params = &ps_dpb_cmds->as_mmc_params[j]; |
| ps_mmc_params->u4_mmco = u4_mmco; |
| switch(u4_mmco) |
| { |
| case MARK_ST_PICNUM_AS_NONREF: |
| u4_diff_pic_num = ih264d_uev(pu4_bitstrm_ofst, |
| pu4_bitstrm_buf); |
| //Get absDiffPicnumMinus1 |
| ps_mmc_params->u4_diff_pic_num = u4_diff_pic_num; |
| break; |
| |
| case MARK_LT_INDEX_AS_NONREF: |
| u4_lt_idx = ih264d_uev(pu4_bitstrm_ofst, |
| pu4_bitstrm_buf); |
| ps_mmc_params->u4_lt_idx = u4_lt_idx; |
| break; |
| |
| case MARK_ST_PICNUM_AS_LT_INDEX: |
| u4_diff_pic_num = ih264d_uev(pu4_bitstrm_ofst, |
| pu4_bitstrm_buf); |
| ps_mmc_params->u4_diff_pic_num = u4_diff_pic_num; |
| u4_lt_idx = ih264d_uev(pu4_bitstrm_ofst, |
| pu4_bitstrm_buf); |
| ps_mmc_params->u4_lt_idx = u4_lt_idx; |
| break; |
| |
| case SET_MAX_LT_INDEX: |
| { |
| u4_max_lt_idx = ih264d_uev(pu4_bitstrm_ofst, |
| pu4_bitstrm_buf); |
| ps_mmc_params->u4_max_lt_idx_plus1 = u4_max_lt_idx; |
| break; |
| } |
| case RESET_REF_PICTURES: |
| { |
| ps_slice->u1_mmco_equalto5 = 1; |
| break; |
| } |
| |
| case SET_LT_INDEX: |
| u4_lt_idx = ih264d_uev(pu4_bitstrm_ofst, |
| pu4_bitstrm_buf); |
| ps_mmc_params->u4_lt_idx = u4_lt_idx; |
| break; |
| |
| default: |
| break; |
| } |
| u4_mmco = ih264d_uev(pu4_bitstrm_ofst, |
| pu4_bitstrm_buf); |
| |
| j++; |
| } |
| ps_dpb_cmds->u1_num_of_commands = j; |
| |
| } |
| } |
| ps_dpb_cmds->u1_dpb_commands_read = 1; |
| ps_dpb_cmds->u1_dpb_commands_read_slc = 1; |
| |
| } |
| u4_bit_ofst = ps_dec->ps_bitstrm->u4_ofst - u4_bit_ofst; |
| return u4_bit_ofst; |
| } |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_do_mmco_buffer \endif |
| * |
| * \brief |
| * Perform decoded picture buffer memory management control operations |
| * |
| * \return |
| * 0 - No error; -1 - Error |
| * |
| * \note |
| * Bitstream is also parsed here to get the MMCOs |
| * |
| ************************************************************************** |
| */ |
| WORD32 ih264d_do_mmco_buffer(dpb_commands_t *ps_dpb_cmds, |
| dpb_manager_t *ps_dpb_mgr, |
| UWORD8 u1_numRef_frames_for_seq, /*!< num_ref_frames from active SeqParSet*/ |
| UWORD32 u4_cur_pic_num, |
| UWORD32 u2_u4_max_pic_num_minus1, |
| UWORD8 u1_nal_unit_type, |
| struct pic_buffer_t *ps_pic_buf, |
| UWORD8 u1_buf_id, |
| UWORD8 u1_fld_pic_flag, |
| UWORD8 u1_curr_pic_in_err) |
| { |
| WORD32 i; |
| UWORD8 u1_buf_mode, u1_marked_lt; |
| struct dpb_info_t *ps_next_dpb; |
| UWORD8 u1_num_gaps; |
| UWORD8 u1_del_node = 1; |
| UWORD8 u1_insert_st_pic = 1; |
| WORD32 ret; |
| UNUSED(u1_nal_unit_type); |
| UNUSED(u2_u4_max_pic_num_minus1); |
| u1_buf_mode = ps_dpb_cmds->u1_buf_mode; //0 - sliding window; 1 - Adaptive |
| u1_marked_lt = 0; |
| u1_num_gaps = ps_dpb_mgr->u1_num_gaps; |
| |
| if(!u1_buf_mode) |
| { |
| //Sliding window - implements 8.2.5.3 |
| if((ps_dpb_mgr->u1_num_st_ref_bufs |
| + ps_dpb_mgr->u1_num_lt_ref_bufs + u1_num_gaps) |
| == u1_numRef_frames_for_seq) |
| { |
| UWORD8 u1_new_node_flag = 1; |
| if((0 == ps_dpb_mgr->u1_num_st_ref_bufs) && (0 == u1_num_gaps)) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| |
| // Chase the links to reach the last but one picNum, if available |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| |
| if(ps_dpb_mgr->u1_num_st_ref_bufs > 1) |
| { |
| if(ps_next_dpb->i4_frame_num == (WORD32)u4_cur_pic_num) |
| { |
| /* Incase of filed pictures top_field has been allocated */ |
| /* picture buffer and complementary bottom field pair comes */ |
| /* then the sliding window mechanism should not allocate a */ |
| /* new node */ |
| u1_new_node_flag = 0; |
| } |
| |
| for(i = 1; i < (ps_dpb_mgr->u1_num_st_ref_bufs - 1); i++) |
| { |
| if(ps_next_dpb == NULL) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| if(ps_next_dpb->i4_frame_num == (WORD32)u4_cur_pic_num) |
| { |
| /* Incase of field pictures top_field has been allocated */ |
| /* picture buffer and complementary bottom field pair comes */ |
| /* then the sliding window mechanism should not allocate a */ |
| /* new node */ |
| u1_new_node_flag = 0; |
| } |
| ps_next_dpb = ps_next_dpb->ps_prev_short; |
| } |
| |
| if(ps_next_dpb->ps_prev_short->ps_prev_short != NULL) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| |
| if(u1_new_node_flag) |
| { |
| if(u1_num_gaps) |
| { |
| ret = ih264d_delete_gap_frm_sliding(ps_dpb_mgr, |
| ps_next_dpb->ps_prev_short->i4_frame_num, |
| &u1_del_node); |
| if(ret != OK) |
| return ret; |
| } |
| |
| if(u1_del_node) |
| { |
| ps_dpb_mgr->u1_num_st_ref_bufs--; |
| ps_next_dpb->ps_prev_short->u1_used_as_ref = |
| UNUSED_FOR_REF; |
| ps_next_dpb->ps_prev_short->s_top_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ps_next_dpb->ps_prev_short->s_bot_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_next_dpb->ps_prev_short->u1_buf_id); |
| ps_next_dpb->ps_prev_short->ps_pic_buf = NULL; |
| ps_next_dpb->ps_prev_short = NULL; |
| } |
| } |
| } |
| else |
| { |
| if(ps_dpb_mgr->u1_num_st_ref_bufs) |
| { |
| ret = ih264d_delete_gap_frm_sliding(ps_dpb_mgr, |
| ps_next_dpb->i4_frame_num, |
| &u1_del_node); |
| if(ret != OK) |
| return ret; |
| if((ps_next_dpb->i4_frame_num != (WORD32)u4_cur_pic_num) |
| && u1_del_node) |
| { |
| ps_dpb_mgr->u1_num_st_ref_bufs--; |
| ps_next_dpb->u1_used_as_ref = FALSE; |
| ps_next_dpb->s_top_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ps_next_dpb->s_bot_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_next_dpb->u1_buf_id); |
| ps_next_dpb->ps_pic_buf = NULL; |
| ps_next_dpb->ps_prev_short = NULL; |
| ps_dpb_mgr->ps_dpb_st_head = NULL; |
| ps_next_dpb = NULL; |
| } |
| else if(ps_next_dpb->i4_frame_num == (WORD32)u4_cur_pic_num) |
| { |
| if(u1_curr_pic_in_err) |
| { |
| u1_insert_st_pic = 0; |
| } |
| else if(ps_dpb_mgr->u1_num_st_ref_bufs > 0) |
| { |
| ps_dpb_mgr->u1_num_st_ref_bufs--; |
| ps_next_dpb->u1_used_as_ref = FALSE; |
| ps_next_dpb->s_top_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ps_next_dpb->s_bot_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_next_dpb->u1_buf_id); |
| ps_next_dpb->ps_pic_buf = NULL; |
| ps_next_dpb = NULL; |
| } |
| } |
| } |
| else |
| { |
| ret = ih264d_delete_gap_frm_sliding(ps_dpb_mgr, |
| INVALID_FRAME_NUM, |
| &u1_del_node); |
| if(ret != OK) |
| return ret; |
| if(u1_del_node) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| } |
| } |
| } |
| } |
| else |
| { |
| //Adaptive memory control - implements 8.2.5.4 |
| UWORD32 u4_mmco; |
| UWORD32 u4_diff_pic_num; |
| WORD32 i4_pic_num; |
| UWORD32 u4_lt_idx; |
| WORD32 j; |
| struct MMCParams *ps_mmc_params; |
| |
| for(j = 0; j < ps_dpb_cmds->u1_num_of_commands; j++) |
| { |
| ps_mmc_params = &ps_dpb_cmds->as_mmc_params[j]; |
| u4_mmco = ps_mmc_params->u4_mmco; //Get MMCO |
| |
| switch(u4_mmco) |
| { |
| case MARK_ST_PICNUM_AS_NONREF: |
| { |
| |
| { |
| UWORD32 i4_cur_pic_num = u4_cur_pic_num; |
| u4_diff_pic_num = ps_mmc_params->u4_diff_pic_num; //Get absDiffPicnumMinus1 |
| if(u1_fld_pic_flag) |
| i4_cur_pic_num = i4_cur_pic_num * 2 + 1; |
| i4_pic_num = i4_cur_pic_num - (u4_diff_pic_num + 1); |
| } |
| |
| if(ps_dpb_mgr->u1_num_st_ref_bufs > 0) |
| { |
| ret = ih264d_delete_st_node_or_make_lt(ps_dpb_mgr, |
| i4_pic_num, |
| MAX_REF_BUFS + 1, |
| u1_fld_pic_flag); |
| if(ret != OK) |
| return ret; |
| } |
| else |
| { |
| UWORD8 u1_dummy; |
| ret = ih264d_delete_gap_frm_mmco(ps_dpb_mgr, i4_pic_num, &u1_dummy); |
| if(ret != OK) |
| return ret; |
| } |
| break; |
| } |
| case MARK_LT_INDEX_AS_NONREF: |
| { |
| WORD32 i4_status; |
| u4_lt_idx = ps_mmc_params->u4_lt_idx; //Get long term index |
| ret = ih264d_delete_lt_node(ps_dpb_mgr, |
| u4_lt_idx, |
| u1_fld_pic_flag, |
| 0, &i4_status); |
| if(ret != OK) |
| return ret; |
| if(i4_status) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| break; |
| } |
| |
| case MARK_ST_PICNUM_AS_LT_INDEX: |
| { |
| { |
| UWORD32 i4_cur_pic_num = u4_cur_pic_num; |
| u4_diff_pic_num = ps_mmc_params->u4_diff_pic_num; //Get absDiffPicnumMinus1 |
| if(u1_fld_pic_flag) |
| i4_cur_pic_num = i4_cur_pic_num * 2 + 1; |
| |
| i4_pic_num = i4_cur_pic_num - (u4_diff_pic_num + 1); |
| } |
| |
| u4_lt_idx = ps_mmc_params->u4_lt_idx; //Get long term index |
| if(ps_dpb_mgr->u1_num_st_ref_bufs > 0) |
| { |
| ret = ih264d_delete_st_node_or_make_lt(ps_dpb_mgr, |
| i4_pic_num, u4_lt_idx, |
| u1_fld_pic_flag); |
| if(ret != OK) |
| return ret; |
| } |
| break; |
| } |
| case SET_MAX_LT_INDEX: |
| { |
| UWORD8 uc_numLT = ps_dpb_mgr->u1_num_lt_ref_bufs; |
| u4_lt_idx = ps_mmc_params->u4_max_lt_idx_plus1; //Get Max_long_term_index_plus1 |
| if(u4_lt_idx < ps_dpb_mgr->u1_max_lt_pic_idx_plus1 |
| && uc_numLT > 0) |
| { |
| struct dpb_info_t *ps_nxtDPB; |
| //Set all LT buffers with index >= u4_lt_idx to nonreference |
| ps_nxtDPB = ps_dpb_mgr->ps_dpb_ht_head; |
| ps_next_dpb = ps_nxtDPB->ps_prev_long; |
| if(ps_nxtDPB->u1_lt_idx >= u4_lt_idx) |
| { |
| i = 0; |
| ps_dpb_mgr->ps_dpb_ht_head = NULL; |
| } |
| else |
| { |
| for(i = 1; i < uc_numLT; i++) |
| { |
| if(ps_next_dpb->u1_lt_idx >= u4_lt_idx) |
| break; |
| ps_nxtDPB = ps_next_dpb; |
| ps_next_dpb = ps_next_dpb->ps_prev_long; |
| } |
| ps_nxtDPB->ps_prev_long = NULL; //Terminate the link of the closest LTIndex that is <=Max |
| } |
| ps_dpb_mgr->u1_num_lt_ref_bufs = i; |
| if(i == 0) |
| ps_next_dpb = ps_nxtDPB; |
| |
| for(; i < uc_numLT; i++) |
| { |
| ps_nxtDPB = ps_next_dpb; |
| ps_nxtDPB->u1_lt_idx = MAX_REF_BUFS + 1; |
| ps_nxtDPB->u1_used_as_ref = UNUSED_FOR_REF; |
| ps_nxtDPB->s_top_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ps_nxtDPB->s_bot_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| |
| ps_nxtDPB->ps_pic_buf = NULL; |
| //Release buffer |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_nxtDPB->u1_buf_id); |
| ps_next_dpb = ps_nxtDPB->ps_prev_long; |
| ps_nxtDPB->ps_prev_long = NULL; |
| } |
| } |
| ps_dpb_mgr->u1_max_lt_pic_idx_plus1 = u4_lt_idx; |
| |
| break; |
| } |
| case SET_LT_INDEX: |
| { |
| u4_lt_idx = ps_mmc_params->u4_lt_idx; //Get long term index |
| ret = ih264d_insert_st_node(ps_dpb_mgr, ps_pic_buf, u1_buf_id, |
| u4_cur_pic_num); |
| if(ret != OK) |
| return ret; |
| |
| if(ps_dpb_mgr->u1_num_st_ref_bufs > 0) |
| |
| { |
| ret = ih264d_delete_st_node_or_make_lt(ps_dpb_mgr, |
| u4_cur_pic_num, |
| u4_lt_idx, |
| u1_fld_pic_flag); |
| if(ret != OK) |
| return ret; |
| } |
| else |
| { |
| return ERROR_DBP_MANAGER_T; |
| } |
| |
| u1_marked_lt = 1; |
| break; |
| } |
| |
| default: |
| break; |
| } |
| if(u4_mmco == RESET_REF_PICTURES || u4_mmco == RESET_ALL_PICTURES) |
| { |
| ih264d_reset_ref_bufs(ps_dpb_mgr); |
| u4_cur_pic_num = 0; |
| } |
| } |
| } |
| if(!u1_marked_lt && u1_insert_st_pic) |
| { |
| ret = ih264d_insert_st_node(ps_dpb_mgr, ps_pic_buf, u1_buf_id, |
| u4_cur_pic_num); |
| if(ret != OK) |
| return ret; |
| } |
| return OK; |
| } |
| |
| /*****************************************************************************/ |
| /* */ |
| /* Function Name : ih264d_release_pics_in_dpb */ |
| /* */ |
| /* Description : This function deletes all pictures from DPB */ |
| /* */ |
| /* Inputs : h_pic_buf_api: pointer to picture buffer API */ |
| /* u1_disp_bufs: number pictures ready for display */ |
| /* */ |
| /* Globals : None */ |
| /* Outputs : None */ |
| /* Returns : None */ |
| /* */ |
| /* Issues : None */ |
| /* */ |
| /* Revision History: */ |
| /* */ |
| /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| /* 22 06 2005 NS Draft */ |
| /* */ |
| /*****************************************************************************/ |
| void ih264d_release_pics_in_dpb(void *pv_dec, |
| UWORD8 u1_disp_bufs) |
| { |
| WORD8 i; |
| dec_struct_t *ps_dec = (dec_struct_t *)pv_dec; |
| |
| for(i = 0; i < u1_disp_bufs; i++) |
| { |
| ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_pic_buf_mgr, |
| i, |
| BUF_MGR_REF); |
| ih264_buf_mgr_release((buf_mgr_t *)ps_dec->pv_mv_buf_mgr, |
| ps_dec->au1_pic_buf_id_mv_buf_id_map[i], |
| BUF_MGR_REF); |
| } |
| } |
| |
| /*****************************************************************************/ |
| /* */ |
| /* Function Name : ih264d_delete_gap_frm_sliding */ |
| /* */ |
| /* Description : This function deletes a picture from the list of gaps, */ |
| /* if the frame number of gap frame is lesser than the one */ |
| /* to be deleted by sliding window */ |
| /* Inputs : ps_dpb_mgr: pointer to dpb manager */ |
| /* i4_frame_num: frame number of picture that's going to */ |
| /* be deleted by sliding window */ |
| /* pu1_del_node: holds 0 if a gap is deleted else 1 */ |
| /* Globals : None */ |
| /* Processing : Function searches for frame number lesser than */ |
| /* i4_frame_num in the gaps list */ |
| /* Outputs : None */ |
| /* Returns : None */ |
| /* */ |
| /* Issues : None */ |
| /* */ |
| /* Revision History: */ |
| /* */ |
| /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| /* 22 06 2005 NS Draft */ |
| /* */ |
| /*****************************************************************************/ |
| WORD32 ih264d_delete_gap_frm_sliding(dpb_manager_t *ps_dpb_mgr, |
| WORD32 i4_frame_num, |
| UWORD8 *pu1_del_node) |
| { |
| WORD8 i1_gap_idx, i, j, j_min; |
| WORD32 *pi4_gaps_start_frm_num, *pi4_gaps_end_frm_num, i4_gap_frame_num; |
| WORD32 i4_start_frm_num, i4_end_frm_num; |
| WORD32 i4_max_frm_num; |
| WORD32 i4_frm_num, i4_gap_frm_num_min; |
| |
| /* find the least frame num from gaps and current DPB node */ |
| /* Delete the least one */ |
| *pu1_del_node = 1; |
| if(0 == ps_dpb_mgr->u1_num_gaps) |
| return OK; |
| pi4_gaps_start_frm_num = ps_dpb_mgr->ai4_gaps_start_frm_num; |
| pi4_gaps_end_frm_num = ps_dpb_mgr->ai4_gaps_end_frm_num; |
| i4_gap_frame_num = INVALID_FRAME_NUM; |
| i4_max_frm_num = ps_dpb_mgr->i4_max_frm_num; |
| |
| i1_gap_idx = -1; |
| if(INVALID_FRAME_NUM != i4_frame_num) |
| { |
| i4_gap_frame_num = i4_frame_num; |
| for(i = 0; i < MAX_FRAMES; i++) |
| { |
| i4_start_frm_num = pi4_gaps_start_frm_num[i]; |
| if(INVALID_FRAME_NUM != i4_start_frm_num) |
| { |
| i4_end_frm_num = pi4_gaps_end_frm_num[i]; |
| if(i4_end_frm_num < i4_max_frm_num) |
| { |
| if(i4_start_frm_num <= i4_gap_frame_num) |
| { |
| i4_gap_frame_num = i4_start_frm_num; |
| i1_gap_idx = i; |
| } |
| } |
| else |
| { |
| if(((i4_start_frm_num <= i4_gap_frame_num) |
| && (i4_gap_frame_num <= i4_max_frm_num)) |
| || ((i4_start_frm_num >= i4_gap_frame_num) |
| && ((i4_gap_frame_num |
| + i4_max_frm_num) |
| >= i4_end_frm_num))) |
| { |
| i4_gap_frame_num = i4_start_frm_num; |
| i1_gap_idx = i; |
| } |
| } |
| } |
| } |
| } |
| else |
| { |
| /* no valid short term buffers, delete one gap from the least start */ |
| /* of gap sequence */ |
| i4_gap_frame_num = pi4_gaps_start_frm_num[0]; |
| i1_gap_idx = 0; |
| for(i = 1; i < MAX_FRAMES; i++) |
| { |
| if(INVALID_FRAME_NUM != pi4_gaps_start_frm_num[i]) |
| { |
| if(pi4_gaps_start_frm_num[i] < i4_gap_frame_num) |
| { |
| i4_gap_frame_num = pi4_gaps_start_frm_num[i]; |
| i1_gap_idx = i; |
| } |
| } |
| } |
| if(INVALID_FRAME_NUM == i4_gap_frame_num) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| } |
| |
| if(-1 != i1_gap_idx) |
| { |
| /* find least frame_num in the poc_map, which is in this range */ |
| i4_start_frm_num = pi4_gaps_start_frm_num[i1_gap_idx]; |
| if(i4_start_frm_num < 0) |
| i4_start_frm_num += i4_max_frm_num; |
| i4_end_frm_num = pi4_gaps_end_frm_num[i1_gap_idx]; |
| if(i4_end_frm_num < 0) |
| i4_end_frm_num += i4_max_frm_num; |
| |
| i4_gap_frm_num_min = 0xfffffff; |
| j_min = MAX_FRAMES; |
| for(j = 0; j < MAX_FRAMES; j++) |
| { |
| i4_frm_num = ps_dpb_mgr->ai4_poc_buf_id_map[j][2]; |
| if((i4_start_frm_num <= i4_frm_num) |
| && (i4_end_frm_num >= i4_frm_num)) |
| { |
| if(i4_frm_num < i4_gap_frm_num_min) |
| { |
| j_min = j; |
| i4_gap_frm_num_min = i4_frm_num; |
| } |
| } |
| } |
| |
| if(j_min != MAX_FRAMES) |
| { |
| |
| ps_dpb_mgr->ai4_poc_buf_id_map[j_min][0] = -1; |
| ps_dpb_mgr->ai4_poc_buf_id_map[j_min][1] = 0x7fffffff; |
| ps_dpb_mgr->ai4_poc_buf_id_map[j_min][2] = GAP_FRAME_NUM; |
| ps_dpb_mgr->i1_gaps_deleted++; |
| |
| ps_dpb_mgr->ai1_gaps_per_seq[i1_gap_idx]--; |
| ps_dpb_mgr->u1_num_gaps--; |
| *pu1_del_node = 0; |
| if(0 == ps_dpb_mgr->ai1_gaps_per_seq[i1_gap_idx]) |
| { |
| ps_dpb_mgr->ai4_gaps_start_frm_num[i1_gap_idx] = |
| INVALID_FRAME_NUM; |
| ps_dpb_mgr->ai4_gaps_end_frm_num[i1_gap_idx] = 0; |
| } |
| } |
| } |
| |
| return OK; |
| } |
| |
| /*****************************************************************************/ |
| /* */ |
| /* Function Name : ih264d_delete_gap_frm_mmco */ |
| /* */ |
| /* Description : This function deletes a picture from the list of gaps, */ |
| /* if the frame number (specified by mmco commands) to be */ |
| /* deleted is in the range by gap sequence. */ |
| /* */ |
| /* Inputs : ps_dpb_mgr: pointer to dpb manager */ |
| /* i4_frame_num: frame number of picture that's going to */ |
| /* be deleted by mmco */ |
| /* pu1_del_node: holds 0 if a gap is deleted else 1 */ |
| /* Globals : None */ |
| /* Processing : Function searches for frame number lesser in the range */ |
| /* specified by gap sequence */ |
| /* Outputs : None */ |
| /* Returns : None */ |
| /* */ |
| /* Issues : None */ |
| /* */ |
| /* Revision History: */ |
| /* */ |
| /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| /* 22 06 2005 NS Draft */ |
| /* */ |
| /*****************************************************************************/ |
| WORD32 ih264d_delete_gap_frm_mmco(dpb_manager_t *ps_dpb_mgr, |
| WORD32 i4_frame_num, |
| UWORD8 *pu1_del_node) |
| { |
| WORD8 i, j; |
| WORD32 *pi4_start, *pi4_end; |
| WORD32 i4_start_frm_num, i4_end_frm_num, i4_max_frm_num; |
| |
| /* find the least frame num from gaps and current DPB node */ |
| /* Delete the gaps */ |
| *pu1_del_node = 1; |
| pi4_start = ps_dpb_mgr->ai4_gaps_start_frm_num; |
| pi4_end = ps_dpb_mgr->ai4_gaps_end_frm_num; |
| i4_max_frm_num = ps_dpb_mgr->i4_max_frm_num; |
| |
| if(0 == ps_dpb_mgr->u1_num_gaps) |
| return OK; |
| |
| if(i4_frame_num < 0) |
| i4_frame_num += i4_max_frm_num; |
| for(i = 0; i < MAX_FRAMES; i++) |
| { |
| i4_start_frm_num = pi4_start[i]; |
| if(i4_start_frm_num < 0) |
| i4_start_frm_num += i4_max_frm_num; |
| if(INVALID_FRAME_NUM != i4_start_frm_num) |
| { |
| i4_end_frm_num = pi4_end[i]; |
| if(i4_end_frm_num < 0) |
| i4_end_frm_num += i4_max_frm_num; |
| |
| if((i4_frame_num >= i4_start_frm_num) |
| && (i4_frame_num <= i4_end_frm_num)) |
| { |
| break; |
| } |
| else |
| { |
| if(((i4_frame_num + i4_max_frm_num) >= i4_start_frm_num) |
| && ((i4_frame_num + i4_max_frm_num) |
| <= i4_end_frm_num)) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| } |
| } |
| } |
| |
| /* find frame_num index, in the poc_map which needs to be deleted */ |
| for(j = 0; j < MAX_FRAMES; j++) |
| { |
| if(i4_frame_num == ps_dpb_mgr->ai4_poc_buf_id_map[j][2]) |
| break; |
| } |
| |
| if(MAX_FRAMES != i) |
| { |
| if(j == MAX_FRAMES) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| |
| ps_dpb_mgr->ai4_poc_buf_id_map[j][0] = -1; |
| ps_dpb_mgr->ai4_poc_buf_id_map[j][1] = 0x7fffffff; |
| ps_dpb_mgr->ai4_poc_buf_id_map[j][2] = GAP_FRAME_NUM; |
| ps_dpb_mgr->i1_gaps_deleted++; |
| |
| ps_dpb_mgr->ai1_gaps_per_seq[i]--; |
| ps_dpb_mgr->u1_num_gaps--; |
| *pu1_del_node = 0; |
| if(0 == ps_dpb_mgr->ai1_gaps_per_seq[i]) |
| { |
| ps_dpb_mgr->ai4_gaps_start_frm_num[i] = INVALID_FRAME_NUM; |
| ps_dpb_mgr->ai4_gaps_end_frm_num[i] = 0; |
| } |
| } |
| else |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| |
| return OK; |
| } |
| |
| /*! |
| ************************************************************************** |
| * \if Function name : ih264d_do_mmco_for_gaps \endif |
| * |
| * \brief |
| * Perform decoded picture buffer memory management control operations |
| * |
| * \return |
| * 0 - No error; -1 - Error |
| * |
| * \note |
| * Bitstream is also parsed here to get the MMCOs |
| * |
| ************************************************************************** |
| */ |
| WORD32 ih264d_do_mmco_for_gaps(dpb_manager_t *ps_dpb_mgr, |
| UWORD8 u1_num_ref_frames /*!< num_ref_frames from active SeqParSet*/ |
| ) |
| { |
| struct dpb_info_t *ps_next_dpb; |
| UWORD8 u1_num_gaps; |
| UWORD8 u1_st_ref_bufs, u1_lt_ref_bufs, u1_del_node; |
| WORD8 i; |
| WORD32 i4_frame_gaps = 1; |
| WORD32 ret; |
| |
| //Sliding window - implements 8.2.5.3, flush out buffers |
| u1_st_ref_bufs = ps_dpb_mgr->u1_num_st_ref_bufs; |
| u1_lt_ref_bufs = ps_dpb_mgr->u1_num_lt_ref_bufs; |
| |
| while(1) |
| { |
| u1_num_gaps = ps_dpb_mgr->u1_num_gaps; |
| if((u1_st_ref_bufs + u1_lt_ref_bufs + u1_num_gaps + i4_frame_gaps) |
| > u1_num_ref_frames) |
| { |
| if(0 == (u1_st_ref_bufs + u1_num_gaps)) |
| { |
| i4_frame_gaps = 0; |
| ps_dpb_mgr->u1_num_gaps = (u1_num_ref_frames |
| - u1_lt_ref_bufs); |
| } |
| else |
| { |
| u1_del_node = 1; |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| |
| if(u1_st_ref_bufs > 1) |
| { |
| for(i = 1; i < (u1_st_ref_bufs - 1); i++) |
| { |
| if(ps_next_dpb == NULL) |
| { |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_DBP_MANAGER_T; |
| return i4_error_code; |
| } |
| ps_next_dpb = ps_next_dpb->ps_prev_short; |
| } |
| |
| if(ps_next_dpb->ps_prev_short->ps_prev_short != NULL) |
| { |
| return ERROR_DBP_MANAGER_T; |
| } |
| |
| if(u1_num_gaps) |
| { |
| ret = ih264d_delete_gap_frm_sliding(ps_dpb_mgr, |
| ps_next_dpb->ps_prev_short->i4_frame_num, |
| &u1_del_node); |
| if(ret != OK) |
| return ret; |
| } |
| |
| if(u1_del_node) |
| { |
| u1_st_ref_bufs--; |
| ps_next_dpb->ps_prev_short->u1_used_as_ref = |
| UNUSED_FOR_REF; |
| ps_next_dpb->ps_prev_short->s_top_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ps_next_dpb->ps_prev_short->s_bot_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_next_dpb->ps_prev_short->u1_buf_id); |
| ps_next_dpb->ps_prev_short->ps_pic_buf = NULL; |
| ps_next_dpb->ps_prev_short = NULL; |
| } |
| } |
| else |
| { |
| if(u1_st_ref_bufs) |
| { |
| if(u1_num_gaps) |
| { |
| ret = ih264d_delete_gap_frm_sliding(ps_dpb_mgr, |
| ps_next_dpb->i4_frame_num, |
| &u1_del_node); |
| if(ret != OK) |
| return ret; |
| } |
| |
| if(u1_del_node) |
| { |
| u1_st_ref_bufs--; |
| ps_next_dpb->u1_used_as_ref = FALSE; |
| ps_next_dpb->s_top_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ps_next_dpb->s_bot_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_next_dpb->u1_buf_id); |
| ps_next_dpb->ps_pic_buf = NULL; |
| ps_next_dpb = NULL; |
| ps_dpb_mgr->ps_dpb_st_head = NULL; |
| ps_dpb_mgr->u1_num_st_ref_bufs = u1_st_ref_bufs; |
| } |
| } |
| else |
| { |
| ret = ih264d_delete_gap_frm_sliding(ps_dpb_mgr, |
| INVALID_FRAME_NUM, |
| &u1_del_node); |
| if(ret != OK) |
| return ret; |
| if(u1_del_node) |
| { |
| return ERROR_DBP_MANAGER_T; |
| } |
| } |
| } |
| } |
| } |
| else |
| { |
| ps_dpb_mgr->u1_num_gaps += i4_frame_gaps; |
| break; |
| } |
| } |
| |
| ps_dpb_mgr->u1_num_st_ref_bufs = u1_st_ref_bufs; |
| |
| return OK; |
| } |
| /****************************************************************************/ |
| /* */ |
| /* Function Name : ih264d_free_node_from_dpb */ |
| /* */ |
| /* Description : */ |
| /* */ |
| /* Inputs : */ |
| /* */ |
| /* Globals : */ |
| /* */ |
| /* Processing : */ |
| /* */ |
| /* Outputs : */ |
| /* */ |
| /* Returns : */ |
| /* */ |
| /* Known Issues : */ |
| /* */ |
| /* Revision History */ |
| /* */ |
| /* DD MM YY Author Changes */ |
| /* Sarat */ |
| /****************************************************************************/ |
| /**** Function Added for Error Resilience *****/ |
| WORD32 ih264d_free_node_from_dpb(dpb_manager_t *ps_dpb_mgr, |
| UWORD32 u4_cur_pic_num, |
| UWORD8 u1_numRef_frames_for_seq) |
| { |
| WORD32 i; |
| UWORD8 u1_num_gaps = ps_dpb_mgr->u1_num_gaps; |
| struct dpb_info_t *ps_next_dpb; |
| UWORD8 u1_del_node = 1; |
| WORD32 ret; |
| |
| //Sliding window - implements 8.2.5.3 |
| if((ps_dpb_mgr->u1_num_st_ref_bufs + ps_dpb_mgr->u1_num_lt_ref_bufs |
| + u1_num_gaps) == u1_numRef_frames_for_seq) |
| { |
| UWORD8 u1_new_node_flag = 1; |
| if((0 == ps_dpb_mgr->u1_num_st_ref_bufs) && (0 == u1_num_gaps)) |
| { |
| return ERROR_DBP_MANAGER_T; |
| } |
| |
| // Chase the links to reach the last but one picNum, if available |
| ps_next_dpb = ps_dpb_mgr->ps_dpb_st_head; |
| |
| if(ps_dpb_mgr->u1_num_st_ref_bufs > 1) |
| { |
| if(ps_next_dpb->i4_frame_num == (WORD32)u4_cur_pic_num) |
| { |
| /* Incase of filed pictures top_field has been allocated */ |
| /* picture buffer and complementary bottom field pair comes */ |
| /* then the sliding window mechanism should not allocate a */ |
| /* new node */ |
| u1_new_node_flag = 0; |
| } |
| |
| for(i = 1; i < (ps_dpb_mgr->u1_num_st_ref_bufs - 1); i++) |
| { |
| if(ps_next_dpb == NULL) |
| return ERROR_DBP_MANAGER_T; |
| |
| if(ps_next_dpb->i4_frame_num == (WORD32)u4_cur_pic_num) |
| { |
| /* Incase of field pictures top_field has been allocated */ |
| /* picture buffer and complementary bottom field pair comes */ |
| /* then the sliding window mechanism should not allocate a */ |
| /* new node */ |
| u1_new_node_flag = 0; |
| } |
| ps_next_dpb = ps_next_dpb->ps_prev_short; |
| } |
| |
| if(ps_next_dpb->ps_prev_short->ps_prev_short != NULL) |
| return ERROR_DBP_MANAGER_T; |
| |
| if(u1_new_node_flag) |
| { |
| if(u1_num_gaps) |
| { |
| ret = ih264d_delete_gap_frm_sliding(ps_dpb_mgr, |
| ps_next_dpb->ps_prev_short->i4_frame_num, |
| &u1_del_node); |
| if(ret != OK) |
| return ret; |
| } |
| |
| if(u1_del_node) |
| { |
| ps_dpb_mgr->u1_num_st_ref_bufs--; |
| ps_next_dpb->ps_prev_short->u1_used_as_ref = UNUSED_FOR_REF; |
| ps_next_dpb->ps_prev_short->s_top_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ps_next_dpb->ps_prev_short->s_bot_field.u1_reference_info = |
| UNUSED_FOR_REF; |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_next_dpb->ps_prev_short->u1_buf_id); |
| ps_next_dpb->ps_prev_short->ps_pic_buf = NULL; |
| ps_next_dpb->ps_prev_short = NULL; |
| } |
| } |
| } |
| else |
| { |
| if(ps_dpb_mgr->u1_num_st_ref_bufs) |
| { |
| ret = ih264d_delete_gap_frm_sliding(ps_dpb_mgr, |
| ps_next_dpb->i4_frame_num, |
| &u1_del_node); |
| if(ret != OK) |
| return ret; |
| if((ps_next_dpb->i4_frame_num != (WORD32)u4_cur_pic_num) |
| && u1_del_node) |
| { |
| ps_dpb_mgr->u1_num_st_ref_bufs--; |
| ps_next_dpb->u1_used_as_ref = FALSE; |
| ps_next_dpb->s_top_field.u1_reference_info = UNUSED_FOR_REF; |
| ps_next_dpb->s_bot_field.u1_reference_info = UNUSED_FOR_REF; |
| ih264d_free_ref_pic_mv_bufs(ps_dpb_mgr->pv_codec_handle, |
| ps_next_dpb->u1_buf_id); |
| ps_next_dpb->ps_pic_buf = NULL; |
| ps_next_dpb = NULL; |
| } |
| } |
| else |
| { |
| ret = ih264d_delete_gap_frm_sliding(ps_dpb_mgr, INVALID_FRAME_NUM, &u1_del_node); |
| if(ret != OK) |
| return ret; |
| if(u1_del_node) |
| return ERROR_DBP_MANAGER_T; |
| } |
| } |
| } |
| return OK; |
| } |
| /*****************************************************************************/ |
| /* */ |
| /* Function Name : ih264d_delete_nonref_nondisplay_pics */ |
| /* */ |
| /* Description : */ |
| /* */ |
| /* */ |
| /* Inputs : */ |
| /* Globals : */ |
| /* Processing : */ |
| /* */ |
| /* Outputs : */ |
| /* Returns : */ |
| /* */ |
| /* Issues : */ |
| /* */ |
| /* Revision History: */ |
| /* */ |
| /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| /* 05 06 2007 Varun Draft */ |
| /* */ |
| /*****************************************************************************/ |
| |
| void ih264d_delete_nonref_nondisplay_pics(dpb_manager_t *ps_dpb_mgr) |
| { |
| WORD8 i; |
| WORD32 (*i4_poc_buf_id_map)[3] = ps_dpb_mgr->ai4_poc_buf_id_map; |
| |
| /* remove all gaps marked as unused for ref */ |
| for(i = 0; (i < MAX_FRAMES) && ps_dpb_mgr->i1_gaps_deleted; i++) |
| { |
| if(GAP_FRAME_NUM == i4_poc_buf_id_map[i][2]) |
| { |
| ps_dpb_mgr->i1_gaps_deleted--; |
| ps_dpb_mgr->i1_poc_buf_id_entries--; |
| i4_poc_buf_id_map[i][0] = -1; |
| i4_poc_buf_id_map[i][1] = 0x7fffffff; |
| i4_poc_buf_id_map[i][2] = 0; |
| } |
| } |
| } |
| /*****************************************************************************/ |
| /* */ |
| /* Function Name : ih264d_insert_pic_in_display_list */ |
| /* */ |
| /* Description : */ |
| /* */ |
| /* */ |
| /* Inputs : */ |
| /* Globals : */ |
| /* Processing : */ |
| /* */ |
| /* Outputs : */ |
| /* Returns : */ |
| /* */ |
| /* Issues : */ |
| /* */ |
| /* Revision History: */ |
| /* */ |
| /* DD MM YYYY Author(s) Changes (Describe the changes made) */ |
| /* 05 06 2007 Varun Draft */ |
| /* */ |
| /*****************************************************************************/ |
| |
| WORD32 ih264d_insert_pic_in_display_list(dpb_manager_t *ps_dpb_mgr, |
| UWORD8 u1_buf_id, |
| WORD32 i4_display_poc, |
| UWORD32 u4_frame_num) |
| { |
| WORD8 i; |
| WORD32 (*i4_poc_buf_id_map)[3] = ps_dpb_mgr->ai4_poc_buf_id_map; |
| |
| for(i = 0; i < MAX_FRAMES; i++) |
| { |
| /* Find an empty slot */ |
| if(i4_poc_buf_id_map[i][0] == -1) |
| { |
| if(GAP_FRAME_NUM == i4_poc_buf_id_map[i][2]) |
| ps_dpb_mgr->i1_gaps_deleted--; |
| else |
| ps_dpb_mgr->i1_poc_buf_id_entries++; |
| |
| i4_poc_buf_id_map[i][0] = u1_buf_id; |
| i4_poc_buf_id_map[i][1] = i4_display_poc; |
| i4_poc_buf_id_map[i][2] = u4_frame_num; |
| |
| break; |
| } |
| } |
| |
| if(MAX_FRAMES == i) |
| { |
| |
| UWORD32 i4_error_code; |
| i4_error_code = ERROR_GAPS_IN_FRM_NUM; |
| return i4_error_code; |
| } |
| return OK; |
| } |
| |
