| /****************************************************************************** |
| * * |
| * Copyright (C) 2018 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 |
| */ |
| #include <string.h> |
| #include "ixheaacd_sbr_common.h" |
| #include <ixheaacd_type_def.h> |
| |
| #include "ixheaacd_constants.h" |
| #include "ixheaacd_basic_ops32.h" |
| #include "ixheaacd_basic_ops40.h" |
| #include "ixheaacd_basic_ops.h" |
| |
| #include "ixheaacd_bitbuffer.h" |
| #include "ixheaacd_defines.h" |
| #include "ixheaacd_aac_rom.h" |
| #include "ixheaacd_pulsedata.h" |
| |
| #include "ixheaacd_pns.h" |
| |
| #include "ixheaacd_lt_predict.h" |
| |
| #include "ixheaacd_channelinfo.h" |
| |
| #include "ixheaacd_drc_data_struct.h" |
| #include "ixheaacd_drc_dec.h" |
| |
| #include "ixheaacd_sbrdecoder.h" |
| |
| #include "ixheaacd_block.h" |
| #include "ixheaacd_channel.h" |
| #include "ixheaacd_common_rom.h" |
| |
| #include "ixheaacd_aacdec.h" |
| |
| #include "ixheaacd_sbrdecsettings.h" |
| |
| #include "ixheaacd_env_extr_part.h" |
| #include "ixheaacd_sbr_rom.h" |
| #include "ixheaacd_audioobjtypes.h" |
| #include "ixheaacd_memory_standards.h" |
| #include "ixheaacd_latmdemux.h" |
| #include "ixheaacd_mps_polyphase.h" |
| #include "ixheaacd_config.h" |
| #include "ixheaacd_mps_dec.h" |
| #include "ixheaacd_struct_def.h" |
| |
| #include "ixheaacd_cnst.h" |
| #include "ixheaacd_rvlc.h" |
| |
| const UWORD8 ixheaacd_min_huff_cb_pair_tbl[MAX_CB_PAIRS] = { |
| 0, 1, 3, 5, 7, 9, 16, 17, 18, 19, 20, 21, |
| 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 11}; |
| const UWORD8 ixheaacd_max_huff_cb_pair_table[MAX_CB_PAIRS] = { |
| 0, 2, 4, 6, 8, 10, 16, 17, 18, 19, 20, 21, |
| 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 11}; |
| const UWORD8 ixheaacd_max_huff_cw_len_table[MAX_CB] = { |
| 0, 11, 9, 20, 16, 13, 11, 14, 12, 17, 14, 49, 0, 0, 0, 0, |
| 14, 17, 21, 21, 25, 25, 29, 29, 29, 29, 33, 33, 33, 37, 37, 41}; |
| const UWORD8 ixheaacd_huff_cb_dim_table[MAX_CB] = { |
| 2, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, |
| 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2}; |
| const UWORD8 ixheaacd_huff_cb_dim_shift_table[MAX_CB] = { |
| 1, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}; |
| const UWORD8 ixheaacd_huff_cb_sign_table[MAX_CB] = { |
| 0, 0, 0, 1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, |
| 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}; |
| const UWORD8 ixheaacd_huff_cb_priority_table[MAX_CB] = { |
| 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 22, 0, 0, 0, 0, |
| 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21}; |
| const UWORD16 ixheaacd_huff_reord_lav_table[MAX_CB] = { |
| 0, 1, 1, 2, 2, 4, 4, 7, 7, 12, 12, |
| 8191, 0, 0, 0, 0, 15, 31, 47, 63, 95, 127, |
| 159, 191, 223, 255, 319, 383, 511, 767, 1023, 2047}; |
| |
| VOID ixheaacd_huff_code_reorder_tbl_init(ia_hcr_info_struct *ptr_hcr_info) { |
| ptr_hcr_info->codebook_pairs.ptr_min_cb_pair_tbl = |
| ixheaacd_min_huff_cb_pair_tbl; |
| ptr_hcr_info->codebook_pairs.ptr_max_cb_pair_tbl = |
| ixheaacd_max_huff_cb_pair_table; |
| ptr_hcr_info->table_info.ptr_max_cw_len_tbl = ixheaacd_max_huff_cw_len_table; |
| ptr_hcr_info->table_info.ptr_cb_dimension_tbl = ixheaacd_huff_cb_dim_table; |
| ptr_hcr_info->table_info.ptr_cb_dim_shift_tbl = |
| ixheaacd_huff_cb_dim_shift_table; |
| ptr_hcr_info->table_info.ptr_cb_sign_tbl = ixheaacd_huff_cb_sign_table; |
| ptr_hcr_info->table_info.ptr_cb_priority = ixheaacd_huff_cb_priority_table; |
| ptr_hcr_info->table_info.ptr_lav_tbl = ixheaacd_huff_reord_lav_table; |
| } |
| |
| VOID ixheaacd_huff_mute_erroneous_lines(ia_hcr_info_struct *ptr_hcr_info) { |
| WORD32 c; |
| WORD32 *ptr_long = ptr_hcr_info->str_dec_io.ptr_quant_spec_coeff_base; |
| |
| for (c = 0; c < 1024; c++) { |
| if (ptr_long[c] == (WORD32)8192) { |
| ptr_long[c] = 0; |
| } |
| } |
| } |
| |
| static UWORD8 ixheaacd_err_detect_pcw_segment(WORD8 remaining_bits_in_segment, |
| ia_hcr_info_struct *ptr_hcr_info, |
| ia_pcw_type_struct kind, |
| WORD32 *qsc_base_of_cw, |
| UWORD8 dimension) { |
| WORD8 i; |
| if (remaining_bits_in_segment < 0) { |
| switch (kind) { |
| case PCW: |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 31); |
| break; |
| case PCW_SIGN: |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 30); |
| break; |
| case PCW_ESC_SIGN: |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 29); |
| break; |
| } |
| for (i = dimension; i != 0; i--) { |
| *qsc_base_of_cw++ = (WORD32)8192; |
| } |
| return 1; |
| } |
| return 0; |
| } |
| |
| static VOID ixheaacd_nonpcw_sideinfo_init(ia_hcr_info_struct *ptr_hcr_info) { |
| UWORD16 i, k; |
| UWORD8 cb_dim; |
| UWORD8 *ptr_cb = ptr_hcr_info->str_non_pcw_side_info.ptr_cb; |
| UWORD16 *res_ptr_idx = ptr_hcr_info->str_non_pcw_side_info.res_ptr_idx; |
| UWORD16 *ptr_num_ext_sorted_cw_in_sect = |
| ptr_hcr_info->sect_info.ptr_num_ext_sorted_cw_in_sect; |
| WORD32 num_ext_sorted_cw_in_sect_idx = |
| ptr_hcr_info->sect_info.num_ext_sorted_cw_in_sect_idx; |
| UWORD8 *ptr_ext_sorted_cw = ptr_hcr_info->sect_info.ptr_ext_sorted_cw; |
| WORD32 ext_sorted_cw_idx = ptr_hcr_info->sect_info.ext_sorted_cw_idx; |
| UWORD16 *ptr_num_ext_sorted_sect_in_sets = |
| ptr_hcr_info->sect_info.ptr_num_ext_sorted_sect_in_sets; |
| WORD32 num_ext_sorted_sect_in_sets_idx = |
| ptr_hcr_info->sect_info.num_ext_sorted_sect_in_sets_idx; |
| WORD32 quant_spec_coeff_idx = ptr_hcr_info->str_dec_io.quant_spec_coeff_idx; |
| const UWORD8 *ptr_cb_dimension_tbl = |
| ptr_hcr_info->table_info.ptr_cb_dimension_tbl; |
| WORD32 loop_idx = 0; |
| |
| for (i = ptr_num_ext_sorted_sect_in_sets[num_ext_sorted_sect_in_sets_idx]; |
| i != 0; i--) { |
| cb_dim = ptr_cb_dimension_tbl[ptr_ext_sorted_cw[ext_sorted_cw_idx]]; |
| |
| for (k = ptr_num_ext_sorted_cw_in_sect[num_ext_sorted_cw_in_sect_idx]; |
| k != 0; k--) { |
| loop_idx++; |
| if (loop_idx > 256) { |
| return; |
| } |
| *ptr_cb++ = ptr_ext_sorted_cw[ext_sorted_cw_idx]; |
| *res_ptr_idx++ = quant_spec_coeff_idx; |
| quant_spec_coeff_idx += cb_dim; |
| if (quant_spec_coeff_idx >= 1024) { |
| return; |
| } |
| } |
| num_ext_sorted_cw_in_sect_idx++; |
| ext_sorted_cw_idx++; |
| if (num_ext_sorted_cw_in_sect_idx >= (MAX_SFB_HCR + MAX_HCR_SETS) || |
| ext_sorted_cw_idx >= (MAX_SFB_HCR + MAX_HCR_SETS)) { |
| return; |
| } |
| } |
| num_ext_sorted_sect_in_sets_idx++; |
| if (num_ext_sorted_cw_in_sect_idx >= (MAX_SFB_HCR + MAX_HCR_SETS)) { |
| return; |
| } |
| |
| ptr_hcr_info->sect_info.num_ext_sorted_cw_in_sect_idx = |
| num_ext_sorted_cw_in_sect_idx; |
| ptr_hcr_info->sect_info.ext_sorted_cw_idx = ext_sorted_cw_idx; |
| ptr_hcr_info->sect_info.num_ext_sorted_sect_in_sets_idx = |
| num_ext_sorted_sect_in_sets_idx; |
| ptr_hcr_info->sect_info.num_ext_sorted_cw_in_sect_idx = |
| num_ext_sorted_cw_in_sect_idx; |
| ptr_hcr_info->str_dec_io.quant_spec_coeff_idx = quant_spec_coeff_idx; |
| } |
| |
| static VOID ixheaacd_calc_num_ext_sorted_sect_sets( |
| UWORD32 num_segment, UWORD16 *ptr_num_ext_sorted_cw_in_sect, |
| WORD32 num_ext_sorted_cw_in_sect_idx, |
| UWORD16 *ptr_num_ext_sorted_sect_in_sets, |
| WORD32 num_ext_sorted_sect_in_sets_idx) { |
| UWORD16 counter = 0; |
| UWORD32 cw_sum = 0; |
| UWORD16 *ptr_num_ext_sort_cw_in_sect = ptr_num_ext_sorted_cw_in_sect; |
| UWORD16 *ptr_num_ext_sort_sect_in_sets = ptr_num_ext_sorted_sect_in_sets; |
| |
| while (ptr_num_ext_sort_cw_in_sect[num_ext_sorted_cw_in_sect_idx] != 0) { |
| cw_sum += ptr_num_ext_sort_cw_in_sect[num_ext_sorted_cw_in_sect_idx]; |
| num_ext_sorted_cw_in_sect_idx++; |
| if (num_ext_sorted_cw_in_sect_idx >= (MAX_SFB_HCR + MAX_HCR_SETS)) { |
| return; |
| } |
| if (cw_sum > num_segment) { |
| return; |
| } |
| counter++; |
| if (counter > 256) { |
| return; |
| } |
| if (cw_sum == num_segment) { |
| ptr_num_ext_sort_sect_in_sets[num_ext_sorted_sect_in_sets_idx] = counter; |
| num_ext_sorted_sect_in_sets_idx++; |
| if (num_ext_sorted_sect_in_sets_idx >= MAX_HCR_SETS) { |
| return; |
| } |
| counter = 0; |
| cw_sum = 0; |
| } |
| } |
| ptr_num_ext_sort_sect_in_sets[num_ext_sorted_sect_in_sets_idx] = counter; |
| } |
| |
| static VOID ixheaacd_validate_hcr_sideinfo(WORD8 cb, WORD32 num_line, |
| UWORD32 *error_word) { |
| if (cb < ZERO_HCB || cb >= MAX_CB_CHECK || cb == (ESC_HCB + 1)) { |
| *error_word |= (ERROR_POS << 4); |
| } |
| if (num_line < 0 || num_line > 1024) { |
| *error_word |= (ERROR_POS << 5); |
| } |
| } |
| |
| static VOID ixheaacd_validate_hcr_lengths(WORD8 longest_cw_len, |
| WORD16 reordered_spec_data_len, |
| UWORD32 *error_word) { |
| if (reordered_spec_data_len < longest_cw_len) { |
| *error_word |= (ERROR_POS << 8); |
| } |
| } |
| |
| UWORD32 ixheaacd_huff_code_reorder_init( |
| ia_hcr_info_struct *ptr_hcr_info, |
| ia_aac_dec_channel_info_struct *ptr_aac_dec_channel_info, |
| ia_aac_dec_tables_struct *ptr_aac_tables, ia_bit_buf_struct *itt_bit_buff) { |
| ia_ics_info_struct *ptr_ics_info = &ptr_aac_dec_channel_info->str_ics_info; |
| WORD16 *ptr_num_sect_lines; |
| UWORD8 *ptr_cb; |
| WORD16 num_sect; |
| WORD8 cb; |
| WORD32 num_line; |
| WORD32 i; |
| |
| ptr_hcr_info->str_dec_io.reordered_spec_data_len = |
| ptr_aac_dec_channel_info->reorder_spect_data_len; |
| ptr_hcr_info->str_dec_io.longest_cw_len = |
| ptr_aac_dec_channel_info->longest_cw_len; |
| ptr_hcr_info->str_dec_io.ptr_quant_spec_coeff_base = |
| ptr_aac_dec_channel_info->ptr_spec_coeff; |
| ptr_hcr_info->str_dec_io.quant_spec_coeff_idx = 0; |
| ptr_hcr_info->str_dec_io.ptr_cb = ptr_aac_dec_channel_info->cb4_hcr_arr; |
| ptr_hcr_info->str_dec_io.ptr_num_line_in_sect = |
| ptr_aac_dec_channel_info->num_line_in_sec4_hcr_arr; |
| ptr_hcr_info->str_dec_io.num_sect = ptr_aac_dec_channel_info->number_sect; |
| ptr_hcr_info->str_dec_io.err_log = 0; |
| ptr_hcr_info->str_non_pcw_side_info.ptr_result_base = |
| ptr_aac_dec_channel_info->ptr_spec_coeff; |
| |
| ptr_hcr_info->str_dec_io.bit_str_idx = |
| itt_bit_buff->size - itt_bit_buff->cnt_bits; |
| itt_bit_buff->byte_ptr = (UWORD8 *)ptr_aac_dec_channel_info->scratch_buf_ptr; |
| itt_bit_buff->ptr_start = (UWORD8 *)ptr_aac_dec_channel_info->scratch_buf_ptr; |
| |
| if (ptr_aac_dec_channel_info->str_ics_info.window_sequence == |
| EIGHT_SHORT_SEQUENCE) { |
| WORD16 band; |
| WORD16 max_band; |
| WORD8 group; |
| WORD8 win_group_len; |
| WORD8 window; |
| WORD8 num_unit_in_band; |
| WORD8 cnt_unit_in_band; |
| WORD8 grp_win; |
| WORD8 cb_prev; |
| |
| WORD8 *ptr_code_book; |
| const WORD16 *band_offsets; |
| WORD16 num_groups; |
| |
| ptr_code_book = ptr_aac_dec_channel_info->ptr_code_book; |
| ptr_num_sect_lines = ptr_hcr_info->str_dec_io.ptr_num_line_in_sect; |
| ptr_cb = ptr_hcr_info->str_dec_io.ptr_cb; |
| band_offsets = (WORD16 *)ixheaacd_getscalefactorbandoffsets(ptr_ics_info, |
| ptr_aac_tables); |
| num_groups = ptr_ics_info->num_window_groups; |
| |
| num_line = 0; |
| num_sect = 0; |
| cb = ptr_code_book[0]; |
| cb_prev = ptr_code_book[0]; |
| |
| *ptr_cb++ = cb_prev; |
| |
| max_band = ptr_ics_info->max_sfb; |
| for (band = 0; band < max_band; band++) { |
| num_unit_in_band = ((band_offsets[band + 1] - band_offsets[band]) >> 2); |
| for (cnt_unit_in_band = num_unit_in_band; cnt_unit_in_band != 0; |
| cnt_unit_in_band--) { |
| for (window = 0, group = 0; group < num_groups; group++) { |
| win_group_len = ptr_ics_info->window_group_length[group]; |
| for (grp_win = win_group_len; grp_win != 0; grp_win--, window++) { |
| cb = ptr_code_book[group * 16 + band]; |
| if (cb != cb_prev) { |
| ixheaacd_validate_hcr_sideinfo(cb, num_line, |
| &ptr_hcr_info->str_dec_io.err_log); |
| if (ptr_hcr_info->str_dec_io.err_log != 0) { |
| return (ptr_hcr_info->str_dec_io.err_log); |
| } |
| *ptr_cb++ = cb; |
| *ptr_num_sect_lines++ = num_line; |
| num_sect++; |
| |
| cb_prev = cb; |
| num_line = LINES_PER_UNIT; |
| } else { |
| num_line += LINES_PER_UNIT; |
| } |
| } |
| } |
| } |
| } |
| |
| num_sect++; |
| |
| ixheaacd_validate_hcr_sideinfo(cb, num_line, |
| &ptr_hcr_info->str_dec_io.err_log); |
| if (num_sect <= 0 || num_sect > 1024 / 2) { |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 7); |
| } |
| ixheaacd_validate_hcr_lengths( |
| ptr_hcr_info->str_dec_io.longest_cw_len, |
| ptr_hcr_info->str_dec_io.reordered_spec_data_len, |
| &ptr_hcr_info->str_dec_io.err_log); |
| if (ptr_hcr_info->str_dec_io.err_log != 0) { |
| return (ptr_hcr_info->str_dec_io.err_log); |
| } |
| |
| *ptr_cb = cb; |
| *ptr_num_sect_lines = num_line; |
| ptr_hcr_info->str_dec_io.num_sect = num_sect; |
| |
| } else { |
| ixheaacd_validate_hcr_lengths( |
| ptr_hcr_info->str_dec_io.longest_cw_len, |
| ptr_hcr_info->str_dec_io.reordered_spec_data_len, |
| &ptr_hcr_info->str_dec_io.err_log); |
| num_sect = ptr_hcr_info->str_dec_io.num_sect; |
| ptr_num_sect_lines = ptr_hcr_info->str_dec_io.ptr_num_line_in_sect; |
| ptr_cb = ptr_hcr_info->str_dec_io.ptr_cb; |
| if (num_sect <= 0 || num_sect > 64) { |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 6); |
| num_sect = 0; |
| } |
| |
| for (i = num_sect; i != 0; i--) { |
| cb = *ptr_cb++; |
| |
| if (cb < ZERO_HCB || cb >= MAX_CB_CHECK || cb == (ESC_HCB + 1)) { |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 2); |
| } |
| |
| num_line = *ptr_num_sect_lines++; |
| |
| if ((num_line <= 0) || (num_line > 1024)) { |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 3); |
| } |
| } |
| if (ptr_hcr_info->str_dec_io.err_log != 0) { |
| return (ptr_hcr_info->str_dec_io.err_log); |
| } |
| } |
| |
| ptr_cb = ptr_hcr_info->str_dec_io.ptr_cb; |
| for (i = 0; i < num_sect; i++) { |
| if ((*ptr_cb == NOISE_HCB) || (*ptr_cb == INTENSITY_HCB2) || |
| (*ptr_cb == INTENSITY_HCB)) { |
| *ptr_cb = 0; |
| } |
| ptr_cb++; |
| } |
| |
| return (ptr_hcr_info->str_dec_io.err_log); |
| } |
| |
| static VOID ixheaacd_huff_calc_num_cwd(ia_hcr_info_struct *ptr_hcr_info) { |
| WORD32 sect_idx; |
| UWORD32 num_code_word; |
| |
| UWORD32 num_sect = ptr_hcr_info->str_dec_io.num_sect; |
| UWORD8 *ptr_cb = ptr_hcr_info->str_dec_io.ptr_cb; |
| WORD16 *ptr_num_line_in_sect = ptr_hcr_info->str_dec_io.ptr_num_line_in_sect; |
| const UWORD8 *ptr_cb_dim_shift_tbl = |
| ptr_hcr_info->table_info.ptr_cb_dim_shift_tbl; |
| UWORD16 *ptr_num_cw_in_sect = ptr_hcr_info->sect_info.ptr_num_cw_in_sect; |
| |
| num_code_word = 0; |
| for (sect_idx = num_sect; sect_idx != 0; sect_idx--) { |
| *ptr_num_cw_in_sect = |
| *ptr_num_line_in_sect++ >> ptr_cb_dim_shift_tbl[*ptr_cb]; |
| if (*ptr_cb != 0) { |
| num_code_word += *ptr_num_cw_in_sect; |
| } |
| ptr_num_cw_in_sect++; |
| ptr_cb++; |
| } |
| ptr_hcr_info->sect_info.num_code_word = num_code_word; |
| } |
| |
| static VOID ixheaacd_huff_sort_sect_cb_cwd(ia_hcr_info_struct *ptr_hcr_info) { |
| UWORD32 i, j, k; |
| UWORD8 temp; |
| UWORD32 counter; |
| UWORD32 start_offset; |
| UWORD32 num_zero_sect; |
| UWORD8 *ptr_dest; |
| UWORD32 num_sect_dec; |
| |
| UWORD32 num_sect = ptr_hcr_info->str_dec_io.num_sect; |
| UWORD8 *ptr_cb = ptr_hcr_info->str_dec_io.ptr_cb; |
| UWORD8 *ptr_sorted_cb = ptr_hcr_info->sect_info.ptr_sorted_cb; |
| UWORD16 *ptr_num_cw_in_sect = ptr_hcr_info->sect_info.ptr_num_cw_in_sect; |
| UWORD16 *ptr_num_sorted_cw_in_sect = |
| ptr_hcr_info->sect_info.ptr_num_sorted_cw_in_sect; |
| UWORD8 *ptr_cb_switch = ptr_hcr_info->sect_info.ptr_cb_switch; |
| UWORD16 *ptr_reorder_offset = ptr_hcr_info->sect_info.ptr_reorder_offset; |
| const UWORD8 *ptr_cb_priority = ptr_hcr_info->table_info.ptr_cb_priority; |
| const UWORD8 *ptr_min_cb_pair_tbl = |
| ptr_hcr_info->codebook_pairs.ptr_min_cb_pair_tbl; |
| const UWORD8 *ptr_max_cb_pair_tbl = |
| ptr_hcr_info->codebook_pairs.ptr_max_cb_pair_tbl; |
| const UWORD8 *ptr_cb_dim_shift_tbl = |
| ptr_hcr_info->table_info.ptr_cb_dim_shift_tbl; |
| |
| UWORD32 search_start_idx = 0; |
| |
| ptr_dest = ptr_sorted_cb; |
| num_zero_sect = 0; |
| for (i = num_sect; i != 0; i--) { |
| if (ptr_cb_priority[*ptr_cb] == 0) { |
| num_zero_sect += 1; |
| } |
| *ptr_dest++ = ptr_cb_priority[*ptr_cb++]; |
| } |
| ptr_hcr_info->sect_info.num_sorted_section = num_sect - num_zero_sect; |
| ptr_cb = ptr_hcr_info->str_dec_io.ptr_cb; |
| |
| num_sect_dec = num_sect - 1; |
| if (num_sect_dec > 0) { |
| counter = num_sect_dec; |
| for (j = num_sect_dec; j != 0; j--) { |
| for (i = 0; i < counter; i++) { |
| if (ptr_sorted_cb[i + 1] > ptr_sorted_cb[i]) { |
| temp = ptr_sorted_cb[i]; |
| ptr_sorted_cb[i] = ptr_sorted_cb[i + 1]; |
| ptr_sorted_cb[i + 1] = temp; |
| } |
| } |
| counter -= 1; |
| } |
| } |
| |
| for (i = num_sect; i != 0; i--) { |
| *ptr_cb_switch++ = 0; |
| } |
| ptr_cb_switch = ptr_hcr_info->sect_info.ptr_cb_switch; |
| |
| for (j = 0; j < num_sect; j++) { |
| for (i = search_start_idx; i < num_sect; i++) { |
| if (ptr_cb_switch[i] == 0 && |
| (ptr_min_cb_pair_tbl[ptr_sorted_cb[j]] == ptr_cb[i] || |
| ptr_max_cb_pair_tbl[ptr_sorted_cb[j]] == ptr_cb[i])) { |
| ptr_cb_switch[i] = 1; |
| ptr_sorted_cb[j] = ptr_cb[i]; |
| ptr_num_sorted_cw_in_sect[j] = ptr_num_cw_in_sect[i]; |
| |
| start_offset = 0; |
| for (k = 0; k < i; k++) { |
| start_offset += ptr_num_cw_in_sect[k] |
| << ptr_cb_dim_shift_tbl[ptr_cb[k]]; |
| } |
| ptr_reorder_offset[j] = start_offset; |
| |
| if (i == search_start_idx) { |
| UWORD32 k = i; |
| while (ptr_cb_switch[k++] == 1) search_start_idx++; |
| } |
| break; |
| } |
| } |
| } |
| } |
| |
| static VOID ixheaacd_huff_ext_sect_info(ia_hcr_info_struct *ptr_hcr_info) { |
| UWORD32 srt_sec_cnt = 0; |
| UWORD32 x_srt_sc_cnt = 0; |
| UWORD32 remain_num_cw_sort_sec; |
| UWORD32 in_segment_remain_num_cw; |
| |
| UWORD32 num_sorted_section = ptr_hcr_info->sect_info.num_sorted_section; |
| UWORD8 *ptr_sorted_cb = ptr_hcr_info->sect_info.ptr_sorted_cb; |
| UWORD16 *ptr_num_sorted_cw_in_sect = |
| ptr_hcr_info->sect_info.ptr_num_sorted_cw_in_sect; |
| UWORD8 *ptr_extended_sorted_code_book = |
| ptr_hcr_info->sect_info.ptr_ext_sorted_cw; |
| UWORD16 *ptr_num_ext_sort_cw_sect = |
| ptr_hcr_info->sect_info.ptr_num_ext_sorted_cw_in_sect; |
| UWORD32 num_segment = ptr_hcr_info->str_segment_info.num_segment; |
| UWORD8 *ptr_ext_sorted_sect_max_cb_len = |
| ptr_hcr_info->sect_info.ptr_ext_sorted_sect_max_cb_len; |
| WORD8 longest_cw_len = ptr_hcr_info->str_dec_io.longest_cw_len; |
| const UWORD8 *ptr_max_cw_len_tbl = |
| ptr_hcr_info->table_info.ptr_max_cw_len_tbl; |
| |
| remain_num_cw_sort_sec = ptr_num_sorted_cw_in_sect[srt_sec_cnt]; |
| in_segment_remain_num_cw = num_segment; |
| |
| while (srt_sec_cnt < num_sorted_section) { |
| if (in_segment_remain_num_cw < remain_num_cw_sort_sec) { |
| ptr_num_ext_sort_cw_sect[x_srt_sc_cnt] = in_segment_remain_num_cw; |
| ptr_extended_sorted_code_book[x_srt_sc_cnt] = ptr_sorted_cb[srt_sec_cnt]; |
| |
| remain_num_cw_sort_sec -= in_segment_remain_num_cw; |
| in_segment_remain_num_cw = num_segment; |
| } else if (in_segment_remain_num_cw == remain_num_cw_sort_sec) { |
| ptr_num_ext_sort_cw_sect[x_srt_sc_cnt] = in_segment_remain_num_cw; |
| ptr_extended_sorted_code_book[x_srt_sc_cnt] = ptr_sorted_cb[srt_sec_cnt]; |
| |
| srt_sec_cnt++; |
| remain_num_cw_sort_sec = ptr_num_sorted_cw_in_sect[srt_sec_cnt]; |
| in_segment_remain_num_cw = num_segment; |
| } else { |
| ptr_num_ext_sort_cw_sect[x_srt_sc_cnt] = remain_num_cw_sort_sec; |
| ptr_extended_sorted_code_book[x_srt_sc_cnt] = ptr_sorted_cb[srt_sec_cnt]; |
| |
| in_segment_remain_num_cw -= remain_num_cw_sort_sec; |
| srt_sec_cnt++; |
| remain_num_cw_sort_sec = ptr_num_sorted_cw_in_sect[srt_sec_cnt]; |
| } |
| ptr_ext_sorted_sect_max_cb_len[x_srt_sc_cnt] = |
| min(ptr_max_cw_len_tbl[ptr_extended_sorted_code_book[x_srt_sc_cnt]], |
| longest_cw_len); |
| |
| x_srt_sc_cnt += 1; |
| |
| if (x_srt_sc_cnt >= (MAX_SFB_HCR + MAX_HCR_SETS)) { |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 28); |
| return; |
| } |
| } |
| ptr_num_ext_sort_cw_sect[x_srt_sc_cnt] = 0; |
| } |
| |
| static UWORD32 ixheaacd_hcr_prepare_segmentation_grid( |
| ia_hcr_info_struct *ptr_hcr_info) { |
| UWORD16 i, j; |
| UWORD16 num_segment = 0; |
| UWORD16 segment_start = 0; |
| UWORD8 segment_width; |
| UWORD8 last_segment_width; |
| UWORD8 sorted_code_book; |
| UWORD8 end_flag = 0; |
| UWORD16 intermediate_result; |
| |
| WORD8 longest_cw_len = ptr_hcr_info->str_dec_io.longest_cw_len; |
| WORD16 reordered_spec_data_len = |
| ptr_hcr_info->str_dec_io.reordered_spec_data_len; |
| UWORD32 num_sorted_section = ptr_hcr_info->sect_info.num_sorted_section; |
| UWORD8 *ptr_sorted_cb = ptr_hcr_info->sect_info.ptr_sorted_cb; |
| UWORD16 *ptr_num_sorted_cw_in_sect = |
| ptr_hcr_info->sect_info.ptr_num_sorted_cw_in_sect; |
| UWORD16 *arr_seg_start_l = ptr_hcr_info->str_segment_info.arr_seg_start_l; |
| UWORD16 *arr_seg_start_r = ptr_hcr_info->str_segment_info.arr_seg_start_r; |
| WORD8 *p_remaining_bits_in_seg = |
| ptr_hcr_info->str_segment_info.p_remaining_bits_in_seg; |
| UWORD16 bit_str_idx = ptr_hcr_info->str_dec_io.bit_str_idx; |
| const UWORD8 *ptr_max_cw_len_tbl = |
| ptr_hcr_info->table_info.ptr_max_cw_len_tbl; |
| |
| for (i = num_sorted_section; i != 0; i--) { |
| sorted_code_book = *ptr_sorted_cb++; |
| segment_width = min(ptr_max_cw_len_tbl[sorted_code_book], longest_cw_len); |
| |
| for (j = *ptr_num_sorted_cw_in_sect; j != 0; j--) { |
| intermediate_result = bit_str_idx + segment_start; |
| if ((segment_start + segment_width) <= reordered_spec_data_len) { |
| *arr_seg_start_l++ = intermediate_result; |
| *arr_seg_start_r++ = intermediate_result + segment_width - 1; |
| *p_remaining_bits_in_seg++ = segment_width; |
| segment_start += segment_width; |
| num_segment += 1; |
| } else { |
| arr_seg_start_l--; |
| arr_seg_start_r--; |
| p_remaining_bits_in_seg--; |
| segment_start = *arr_seg_start_l - bit_str_idx; |
| |
| last_segment_width = reordered_spec_data_len - segment_start; |
| *p_remaining_bits_in_seg = last_segment_width; |
| *arr_seg_start_r = bit_str_idx + segment_start + last_segment_width - 1; |
| end_flag = 1; |
| break; |
| } |
| } |
| ptr_num_sorted_cw_in_sect++; |
| if (end_flag != 0) { |
| break; |
| } |
| } |
| |
| if (num_segment == 0) ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 9); |
| |
| ptr_hcr_info->str_segment_info.num_segment = num_segment; |
| |
| return (ptr_hcr_info->str_dec_io.err_log); |
| } |
| |
| static PLATFORM_INLINE UWORD16 *ixheaacd_huff_dec_pair_hcr_pcw( |
| ia_hcr_info_struct *ptr_hcr_info, ia_bit_buf_struct *it_bit_buff, |
| WORD no_bands, const UWORD16 *code_book_tbl, WORD32 *read_word, |
| WORD32 tbl_sign, const UWORD32 *idx_table, UWORD16 *arr_seg_start_l, |
| WORD32 *read_bits, WORD32 huff_mode, WORD8 *p_remaining_bits_in_seg, |
| WORD32 *ptr_num_decoded_bits) |
| |
| { |
| WORD32 spec_index = ptr_hcr_info->str_dec_io.quant_spec_coeff_idx; |
| WORD32 *spec_coef = |
| ptr_hcr_info->str_dec_io.ptr_quant_spec_coeff_base + spec_index; |
| WORD16 index, length; |
| WORD32 y, z; |
| UWORD8 *ptr_read_next = it_bit_buff->ptr_read_next; |
| WORD32 *bit_pos = &it_bit_buff->bit_pos; |
| |
| do { |
| UWORD32 read_word1; |
| |
| WORD32 read_bit_offset = |
| *arr_seg_start_l - (it_bit_buff->size - *read_bits); |
| |
| if (read_bit_offset) { |
| *read_bits -= read_bit_offset; |
| *bit_pos += read_bit_offset; |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| } |
| |
| read_word1 = *read_word << *bit_pos; |
| ixheaacd_huffman_decode(read_word1, &index, &length, code_book_tbl, |
| idx_table); |
| *bit_pos += length; |
| *ptr_num_decoded_bits += length; |
| *p_remaining_bits_in_seg -= length; |
| *arr_seg_start_l += length; |
| *read_bits -= length; |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| if (tbl_sign) { |
| WORD32 temp_word; |
| temp_word = *read_word << *bit_pos; |
| y = index / huff_mode; |
| z = index - huff_mode * y; |
| |
| if (y) { |
| if (temp_word & 0x80000000) y = -y; |
| |
| temp_word = temp_word << 1; |
| *bit_pos += 1; |
| *p_remaining_bits_in_seg -= 1; |
| *ptr_num_decoded_bits += 1; |
| *arr_seg_start_l += 1; |
| *read_bits -= 1; |
| } |
| *spec_coef++ = y; |
| spec_index++; |
| |
| if (z) { |
| if (temp_word & 0x80000000) { |
| z = -z; |
| } |
| temp_word <<= 1; |
| *bit_pos += 1; |
| *p_remaining_bits_in_seg -= 1; |
| *ptr_num_decoded_bits += 1; |
| *arr_seg_start_l += 1; |
| *read_bits -= 1; |
| } |
| *spec_coef++ = z; |
| spec_index++; |
| } else { |
| y = (index / huff_mode) - 4; |
| z = index - ((y + 4) * huff_mode) - 4; |
| |
| *spec_coef++ = y; |
| *spec_coef++ = z; |
| spec_index += 2; |
| } |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| no_bands--; |
| arr_seg_start_l++; |
| p_remaining_bits_in_seg++; |
| } while (no_bands != 0); |
| |
| it_bit_buff->ptr_read_next = ptr_read_next; |
| ptr_hcr_info->str_dec_io.quant_spec_coeff_idx = spec_index; |
| |
| return arr_seg_start_l; |
| } |
| |
| static PLATFORM_INLINE WORD16 ixheaacd_huff_dec_pair_hcr_non_pcw( |
| ia_bit_buf_struct *itt_bit_buff, WORD32 *spec_coef, |
| const UWORD16 *code_book_tbl, WORD32 tbl_sign, const UWORD32 *idx_table, |
| WORD32 huff_mode) |
| |
| { |
| WORD16 index, length; |
| WORD32 y, z; |
| WORD32 read_word1; |
| WORD32 read_word; |
| |
| read_word = ixheaacd_aac_showbits_32(itt_bit_buff->byte_ptr, |
| itt_bit_buff->bit_count, NULL); |
| |
| ixheaacd_huffman_decode(read_word, &index, &length, code_book_tbl, idx_table); |
| read_word1 = read_word << length; |
| if (tbl_sign) { |
| WORD32 temp_word; |
| temp_word = read_word1; |
| y = index / huff_mode; |
| z = index - huff_mode * y; |
| |
| if (y) { |
| if (temp_word & 0x80000000) y = -y; |
| |
| temp_word = temp_word << 1; |
| length++; |
| } |
| *spec_coef++ = y; |
| |
| if (z) { |
| if (temp_word & 0x80000000) { |
| z = -z; |
| } |
| temp_word <<= 1; |
| length++; |
| } |
| *spec_coef++ = z; |
| } else { |
| y = (index / huff_mode) - 4; |
| z = index - ((y + 4) * huff_mode) - 4; |
| |
| *spec_coef++ = y; |
| *spec_coef++ = z; |
| } |
| |
| return length; |
| } |
| |
| static PLATFORM_INLINE UWORD16 *ixheaacd_huff_dec_quad_hcr_pcw( |
| ia_hcr_info_struct *ptr_hcr_info, ia_bit_buf_struct *it_bit_buff, |
| WORD no_bands, const UWORD16 *code_book_tbl, WORD32 tbl_sign, |
| const UWORD32 *idx_table, WORD32 *read_word, WORD32 *read_bits, |
| UWORD16 *arr_seg_start_l, WORD8 *p_remaining_bits_in_seg, |
| WORD32 *ptr_num_decoded_bits) { |
| WORD16 index, length; |
| |
| UWORD8 *ptr_read_next = it_bit_buff->ptr_read_next; |
| WORD32 spec_index = ptr_hcr_info->str_dec_io.quant_spec_coeff_idx; |
| WORD32 *spec_coef = |
| ptr_hcr_info->str_dec_io.ptr_quant_spec_coeff_base + spec_index; |
| WORD32 *bit_pos = &it_bit_buff->bit_pos; |
| |
| do { |
| UWORD32 read_word1; |
| |
| WORD32 read_bit_offset = |
| *arr_seg_start_l - (it_bit_buff->size - *read_bits); |
| |
| if (read_bit_offset) { |
| *read_bits -= read_bit_offset; |
| *bit_pos += read_bit_offset; |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| } |
| |
| read_word1 = *read_word << *bit_pos; |
| ixheaacd_huffman_decode(read_word1, &index, &length, code_book_tbl, |
| idx_table); |
| *bit_pos += length; |
| *p_remaining_bits_in_seg -= length; |
| *read_bits -= length; |
| *ptr_num_decoded_bits += length; |
| *arr_seg_start_l += length; |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| if (tbl_sign) { |
| WORD32 temp_word; |
| WORD32 w, x, y, z; |
| temp_word = *read_word << *bit_pos; |
| w = index / 27; |
| index = index - w * 27; |
| x = index / 9; |
| index = index - x * 9; |
| y = index / 3; |
| z = index - y * 3; |
| if (w) { |
| if (temp_word & 0x80000000) w = -w; |
| temp_word <<= 1; |
| *bit_pos += 1; |
| *p_remaining_bits_in_seg -= 1; |
| *read_bits -= 1; |
| *ptr_num_decoded_bits += 1; |
| *arr_seg_start_l += 1; |
| } |
| *spec_coef++ = w; |
| spec_index++; |
| |
| if (x) { |
| if (temp_word & 0x80000000) x = -x; |
| temp_word <<= 1; |
| *bit_pos += 1; |
| *p_remaining_bits_in_seg -= 1; |
| *read_bits -= 1; |
| *ptr_num_decoded_bits += 1; |
| *arr_seg_start_l += 1; |
| } |
| *spec_coef++ = x; |
| spec_index++; |
| if (y) { |
| if (temp_word & 0x80000000) y = -y; |
| temp_word <<= 1; |
| *bit_pos += 1; |
| *p_remaining_bits_in_seg -= 1; |
| *read_bits -= 1; |
| *ptr_num_decoded_bits += 1; |
| *arr_seg_start_l += 1; |
| } |
| *spec_coef++ = y; |
| spec_index++; |
| if (z) { |
| if (temp_word & 0x80000000) z = -z; |
| temp_word <<= 1; |
| *bit_pos += 1; |
| *p_remaining_bits_in_seg -= 1; |
| *read_bits -= 1; |
| *ptr_num_decoded_bits += 1; |
| *arr_seg_start_l += 1; |
| } |
| *spec_coef++ = z; |
| spec_index++; |
| |
| } |
| |
| else { |
| WORD32 w, x, y, z; |
| |
| w = index / 27 - 1; |
| index = index - (w + 1) * 27; |
| x = index / 9 - 1; |
| index = index - (x + 1) * 9; |
| y = index / 3 - 1; |
| z = index - ((y + 1) * 3) - 1; |
| *spec_coef++ = w; |
| |
| *spec_coef++ = x; |
| |
| *spec_coef++ = y; |
| |
| *spec_coef++ = z; |
| spec_index += 4; |
| } |
| |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| arr_seg_start_l++; |
| p_remaining_bits_in_seg++; |
| no_bands--; |
| } while (no_bands != 0); |
| |
| it_bit_buff->ptr_read_next = ptr_read_next; |
| ptr_hcr_info->str_dec_io.quant_spec_coeff_idx = spec_index; |
| |
| return arr_seg_start_l; |
| } |
| |
| static UWORD16 *ixheaacd_huff_dec_word_hcr_pcw( |
| ia_hcr_info_struct *ptr_hcr_info, ia_bit_buf_struct *it_bit_buff, |
| WORD no_bands, const UWORD16 *code_book_tbl, WORD32 *read_word, |
| const UWORD32 *idx_table, UWORD16 *arr_seg_start_l, WORD32 *read_bits, |
| WORD8 *p_remaining_bits_in_seg, WORD32 *ptr_num_decoded_bits) { |
| WORD32 sp1, sp2; |
| WORD32 flush_cw; |
| WORD32 i, value, norm_val, off; |
| WORD32 out1, out2; |
| WORD16 index; |
| WORD32 length; |
| UWORD8 *ptr_read_next = it_bit_buff->ptr_read_next; |
| WORD32 spec_index = ptr_hcr_info->str_dec_io.quant_spec_coeff_idx; |
| WORD32 *spec_coef = |
| ptr_hcr_info->str_dec_io.ptr_quant_spec_coeff_base + spec_index; |
| WORD32 *bit_pos = &it_bit_buff->bit_pos; |
| |
| do { |
| UWORD32 read_word1; |
| |
| WORD32 read_bit_offset = |
| *arr_seg_start_l - (it_bit_buff->size - *read_bits); |
| |
| if (read_bit_offset) { |
| *read_bits -= read_bit_offset; |
| *bit_pos += read_bit_offset; |
| ixheaacd_aac_read_byte_corr1(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| } |
| |
| read_word1 = *read_word << *bit_pos; |
| ixheaacd_huff_sfb_table(read_word1, &index, &length, code_book_tbl, |
| idx_table); |
| *bit_pos += length; |
| *read_bits -= length; |
| *arr_seg_start_l += length; |
| *p_remaining_bits_in_seg -= length; |
| *ptr_num_decoded_bits += length; |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| |
| out1 = index / 17; |
| out2 = index - out1 * 17; |
| flush_cw = *read_word << *bit_pos; |
| |
| sp1 = out1; |
| sp2 = out2; |
| |
| if (out1) { |
| if (flush_cw & 0x80000000) { |
| out1 = -out1; |
| } |
| *bit_pos += 1; |
| *read_bits -= 1; |
| *p_remaining_bits_in_seg -= 1; |
| *ptr_num_decoded_bits += 1; |
| *arr_seg_start_l += 1; |
| flush_cw = (WORD32)flush_cw << 1; |
| } |
| |
| if (out2) { |
| *bit_pos += 1; |
| *read_bits -= 1; |
| *p_remaining_bits_in_seg -= 1; |
| *ptr_num_decoded_bits += 1; |
| *arr_seg_start_l += 1; |
| if (flush_cw & 0x80000000) { |
| out2 = -out2; |
| } |
| } |
| |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| |
| if (sp1 == 16) { |
| i = 4; |
| value = ixheaacd_extu(*read_word, *bit_pos, 23); |
| value = value | 0xfffffe00; |
| norm_val = ixheaacd_norm32(value); |
| |
| i += (norm_val - 22); |
| *bit_pos += (norm_val - 21); |
| *p_remaining_bits_in_seg -= (norm_val - 21); |
| *ptr_num_decoded_bits += (norm_val - 21); |
| *read_bits -= (norm_val - 21); |
| *arr_seg_start_l += (norm_val - 21); |
| |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| |
| off = ixheaacd_extu(*read_word, *bit_pos, 32 - i); |
| |
| *bit_pos += i; |
| *p_remaining_bits_in_seg -= i; |
| *ptr_num_decoded_bits += i; |
| *read_bits -= i; |
| *arr_seg_start_l += i; |
| |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| |
| i = off + ((WORD32)1 << i); |
| |
| if (out1 < 0) |
| *spec_coef++ = -i; |
| else |
| *spec_coef++ = i; |
| spec_index++; |
| } else { |
| *spec_coef++ = out1; |
| spec_index++; |
| } |
| |
| if (sp2 == 16) { |
| i = 4; |
| value = ixheaacd_extu(*read_word, *bit_pos, 23); |
| value = value | 0xfffffe00; |
| norm_val = ixheaacd_norm32(value); |
| |
| i += (norm_val - 22); |
| |
| *bit_pos += (norm_val - 21); |
| *read_bits -= (norm_val - 21); |
| *p_remaining_bits_in_seg -= (norm_val - 21); |
| *ptr_num_decoded_bits += (norm_val - 21); |
| *arr_seg_start_l += (norm_val - 21); |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| |
| off = ixheaacd_extu(*read_word, *bit_pos, 32 - i); |
| |
| *bit_pos += i; |
| *p_remaining_bits_in_seg -= i; |
| *ptr_num_decoded_bits += i; |
| *read_bits -= i; |
| *arr_seg_start_l += i; |
| |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| ixheaacd_aac_read_byte_corr(&ptr_read_next, bit_pos, read_word, |
| it_bit_buff->ptr_bit_buf_end); |
| |
| i = off + ((WORD32)1 << i); |
| |
| if (out2 < 0) |
| *spec_coef++ = -i; |
| else |
| *spec_coef++ = i; |
| spec_index++; |
| } else { |
| *spec_coef++ = out2; |
| spec_index++; |
| } |
| |
| arr_seg_start_l++; |
| p_remaining_bits_in_seg++; |
| |
| no_bands--; |
| } while (no_bands != 0); |
| |
| it_bit_buff->ptr_read_next = ptr_read_next; |
| ptr_hcr_info->str_dec_io.quant_spec_coeff_idx = spec_index; |
| |
| return arr_seg_start_l; |
| } |
| |
| static VOID ixheaacd_decode_pcw(ia_bit_buf_struct *itt_bit_buff, |
| ia_hcr_info_struct *ptr_hcr_info, |
| ia_aac_dec_tables_struct *ptr_aac_tables) { |
| UWORD16 ext_sort_sec; |
| UWORD16 cur_ext_sort_cw_sec; |
| UWORD8 codebook; |
| UWORD8 dimension; |
| WORD32 increment; |
| |
| WORD32 num_ext_sorted_cw_in_sect_idx = |
| ptr_hcr_info->sect_info.num_ext_sorted_cw_in_sect_idx; |
| UWORD8 *ptr_ext_sorted_cw = ptr_hcr_info->sect_info.ptr_ext_sorted_cw; |
| WORD32 ext_sorted_cw_idx = ptr_hcr_info->sect_info.ext_sorted_cw_idx; |
| UWORD16 *ptr_num_ext_sorted_sect_in_sets = |
| ptr_hcr_info->sect_info.ptr_num_ext_sorted_sect_in_sets; |
| WORD32 num_ext_sorted_sect_in_sets_idx = |
| ptr_hcr_info->sect_info.num_ext_sorted_sect_in_sets_idx; |
| WORD32 *ptr_quant_spec_coeff = |
| ptr_hcr_info->str_dec_io.ptr_quant_spec_coeff_base; |
| UWORD16 *arr_seg_start_l = ptr_hcr_info->str_segment_info.arr_seg_start_l; |
| WORD8 *p_remaining_bits_in_seg = |
| ptr_hcr_info->str_segment_info.p_remaining_bits_in_seg; |
| UWORD8 *ptr_ext_sorted_sect_max_cb_len = |
| ptr_hcr_info->sect_info.ptr_ext_sorted_sect_max_cb_len; |
| WORD32 ext_sorted_sect_max_cb_len_idx = |
| ptr_hcr_info->sect_info.ext_sorted_sect_max_cb_len_idx; |
| UWORD8 max_allowed_cw_len; |
| WORD32 num_decoded_bits; |
| const UWORD8 *ptr_cb_dimension_tbl = |
| ptr_hcr_info->table_info.ptr_cb_dimension_tbl; |
| |
| WORD32 read_word = ixheaacd_aac_showbits_32( |
| itt_bit_buff->ptr_read_next, itt_bit_buff->cnt_bits, &increment); |
| WORD32 read_bits = itt_bit_buff->cnt_bits; |
| |
| itt_bit_buff->ptr_read_next += increment; |
| |
| for (ext_sort_sec = |
| ptr_num_ext_sorted_sect_in_sets[num_ext_sorted_sect_in_sets_idx]; |
| ext_sort_sec != 0; ext_sort_sec--) { |
| codebook = ptr_ext_sorted_cw[ext_sorted_cw_idx]; |
| if (codebook <= 0) return; |
| |
| ext_sorted_cw_idx++; |
| if (ext_sorted_cw_idx >= (MAX_SFB_HCR + MAX_HCR_SETS)) { |
| return; |
| } |
| dimension = ptr_cb_dimension_tbl[codebook]; |
| max_allowed_cw_len = |
| ptr_ext_sorted_sect_max_cb_len[ext_sorted_sect_max_cb_len_idx]; |
| ext_sorted_sect_max_cb_len_idx++; |
| if (ext_sorted_sect_max_cb_len_idx >= (MAX_SFB_HCR + MAX_HCR_SETS)) { |
| return; |
| } |
| |
| if (codebook <= 4) { |
| WORD32 tbl_sign = 0; |
| const UWORD16 *cb_table = (UWORD16 *)(ptr_aac_tables->code_book[codebook]); |
| const UWORD32 *idx_table = (UWORD32 *)(ptr_aac_tables->index_table[codebook]); |
| |
| if (codebook > 2) { |
| tbl_sign = 1; |
| } |
| |
| { |
| num_decoded_bits = 0; |
| cur_ext_sort_cw_sec = |
| ptr_hcr_info->sect_info |
| .ptr_num_ext_sorted_cw_in_sect[num_ext_sorted_cw_in_sect_idx]; |
| |
| arr_seg_start_l = ixheaacd_huff_dec_quad_hcr_pcw( |
| ptr_hcr_info, itt_bit_buff, cur_ext_sort_cw_sec, cb_table, tbl_sign, |
| idx_table, &read_word, &read_bits, arr_seg_start_l, |
| p_remaining_bits_in_seg, &num_decoded_bits); |
| |
| p_remaining_bits_in_seg += cur_ext_sort_cw_sec; |
| |
| if (cur_ext_sort_cw_sec * max_allowed_cw_len < num_decoded_bits) { |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 19); |
| } |
| |
| if (1 == |
| ixheaacd_err_detect_pcw_segment( |
| *p_remaining_bits_in_seg, ptr_hcr_info, PCW, |
| ptr_quant_spec_coeff + |
| ptr_hcr_info->str_dec_io.quant_spec_coeff_idx - dimension, |
| dimension)) { |
| return; |
| } |
| } |
| } else if (codebook < 11) { |
| { |
| WORD32 tbl_sign = 0; |
| WORD32 huff_mode = 9; |
| const UWORD16 *cb_table = (UWORD16 *)(ptr_aac_tables->code_book[codebook]); |
| const UWORD32 *idx_table = (UWORD32 *)(ptr_aac_tables->index_table[codebook]); |
| num_decoded_bits = 0; |
| |
| if (codebook > 6) { |
| if (codebook > 8) |
| huff_mode = 13; |
| else |
| huff_mode = 8; |
| tbl_sign = 1; |
| } |
| |
| cur_ext_sort_cw_sec = |
| ptr_hcr_info->sect_info |
| .ptr_num_ext_sorted_cw_in_sect[num_ext_sorted_cw_in_sect_idx]; |
| |
| arr_seg_start_l = ixheaacd_huff_dec_pair_hcr_pcw( |
| ptr_hcr_info, itt_bit_buff, cur_ext_sort_cw_sec, cb_table, |
| &read_word, tbl_sign, idx_table, arr_seg_start_l, &read_bits, |
| huff_mode, p_remaining_bits_in_seg, &num_decoded_bits); |
| |
| p_remaining_bits_in_seg += cur_ext_sort_cw_sec; |
| |
| if (cur_ext_sort_cw_sec * max_allowed_cw_len < num_decoded_bits) { |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 18); |
| } |
| |
| if (1 == |
| ixheaacd_err_detect_pcw_segment( |
| *p_remaining_bits_in_seg, ptr_hcr_info, PCW_SIGN, |
| ptr_quant_spec_coeff + |
| ptr_hcr_info->str_dec_io.quant_spec_coeff_idx - dimension, |
| dimension)) { |
| return; |
| } |
| } |
| } else if ((codebook >= 11)) { |
| const UWORD32 *idx_table = |
| ptr_aac_tables->pstr_huffmann_tables->idx_table_hf11; |
| const UWORD16 *cb_table = |
| ptr_aac_tables->pstr_huffmann_tables->input_table_cb11; |
| num_decoded_bits = 0; |
| |
| cur_ext_sort_cw_sec = |
| ptr_hcr_info->sect_info |
| .ptr_num_ext_sorted_cw_in_sect[num_ext_sorted_cw_in_sect_idx]; |
| |
| arr_seg_start_l = ixheaacd_huff_dec_word_hcr_pcw( |
| ptr_hcr_info, itt_bit_buff, cur_ext_sort_cw_sec, cb_table, &read_word, |
| idx_table, arr_seg_start_l, &read_bits, p_remaining_bits_in_seg, |
| &num_decoded_bits); |
| |
| p_remaining_bits_in_seg += cur_ext_sort_cw_sec; |
| |
| if (cur_ext_sort_cw_sec * max_allowed_cw_len < num_decoded_bits) { |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 17); |
| } |
| |
| if (1 == ixheaacd_err_detect_pcw_segment( |
| *p_remaining_bits_in_seg, ptr_hcr_info, PCW_ESC_SIGN, |
| ptr_quant_spec_coeff + |
| ptr_hcr_info->str_dec_io.quant_spec_coeff_idx - 2, |
| 2)) { |
| return; |
| } |
| } |
| |
| num_ext_sorted_cw_in_sect_idx++; |
| if (num_ext_sorted_cw_in_sect_idx >= MAX_SFB_HCR + MAX_HCR_SETS) { |
| return; |
| } |
| } |
| |
| num_ext_sorted_sect_in_sets_idx++; |
| if (num_ext_sorted_sect_in_sets_idx >= MAX_HCR_SETS) { |
| return; |
| } |
| |
| itt_bit_buff->cnt_bits = read_bits; |
| |
| ptr_hcr_info->sect_info.num_ext_sorted_cw_in_sect_idx = |
| num_ext_sorted_cw_in_sect_idx; |
| ptr_hcr_info->sect_info.ext_sorted_cw_idx = ext_sorted_cw_idx; |
| ptr_hcr_info->sect_info.num_ext_sorted_sect_in_sets_idx = |
| num_ext_sorted_sect_in_sets_idx; |
| ptr_hcr_info->sect_info.ext_sorted_sect_max_cb_len_idx = |
| ext_sorted_sect_max_cb_len_idx; |
| } |
| |
| static UWORD32 ixheaacd_init_segment_bit_field(WORD32 num_segment, |
| WORD8 *p_remaining_bits_in_seg) { |
| WORD16 i; |
| WORD16 num_valid_segment = 0; |
| |
| for (i = 0; i < num_segment; i++) { |
| if (p_remaining_bits_in_seg[i] != 0) { |
| num_valid_segment += 1; |
| } |
| } |
| |
| return num_valid_segment; |
| } |
| |
| UWORD8 ixheaacd_toggle_read_dir(UWORD8 read_direction) { |
| if (read_direction == FROM_LEFT_TO_RIGHT) { |
| return FROM_RIGHT_TO_LEFT; |
| } else { |
| return FROM_LEFT_TO_RIGHT; |
| } |
| } |
| |
| static PLATFORM_INLINE UWORD16 ixheaacd_huff_dec_quad_hcr_non_pcw( |
| ia_bit_buf_struct *itt_bit_buff, WORD32 *spec_coef, |
| const UWORD16 *code_book_tbl, WORD32 tbl_sign, const UWORD32 *idx_table) { |
| WORD16 index, length; |
| WORD16 cw_len; |
| WORD32 read_word; |
| |
| read_word = ixheaacd_aac_showbits_32(itt_bit_buff->byte_ptr, |
| itt_bit_buff->bit_count, NULL); |
| ixheaacd_huffman_decode(read_word, &index, &length, code_book_tbl, idx_table); |
| cw_len = length; |
| if (tbl_sign) { |
| WORD32 temp_word; |
| WORD32 w, x, y, z; |
| temp_word = read_word << length; |
| w = index / 27; |
| index = index - w * 27; |
| x = index / 9; |
| index = index - x * 9; |
| y = index / 3; |
| z = index - y * 3; |
| if (w) { |
| if (temp_word & 0x80000000) w = -w; |
| temp_word <<= 1; |
| cw_len++; |
| } |
| *spec_coef++ = w; |
| |
| if (x) { |
| if (temp_word & 0x80000000) x = -x; |
| temp_word <<= 1; |
| cw_len++; |
| } |
| *spec_coef++ = x; |
| if (y) { |
| if (temp_word & 0x80000000) y = -y; |
| temp_word <<= 1; |
| cw_len++; |
| } |
| *spec_coef++ = y; |
| if (z) { |
| if (temp_word & 0x80000000) z = -z; |
| temp_word <<= 1; |
| cw_len++; |
| } |
| *spec_coef++ = z; |
| |
| } |
| |
| else { |
| WORD32 w, x, y, z; |
| |
| w = index / 27 - 1; |
| index = index - (w + 1) * 27; |
| x = index / 9 - 1; |
| index = index - (x + 1) * 9; |
| y = index / 3 - 1; |
| z = index - ((y + 1) * 3) - 1; |
| *spec_coef++ = w; |
| *spec_coef++ = x; |
| *spec_coef++ = y; |
| *spec_coef++ = z; |
| } |
| |
| return cw_len; |
| } |
| |
| static PLATFORM_INLINE UWORD16 ixheaacd_huff_dec_word_hcr_non_pcw( |
| ia_bit_buf_struct *itt_bit_buff, WORD32 *spec_coef, |
| const UWORD16 *code_book_tbl, const UWORD32 *idx_table) { |
| WORD32 sp1, sp2; |
| WORD32 flush_cw; |
| WORD32 i, value, norm_val, off; |
| WORD32 out1, out2; |
| UWORD16 cw_len; |
| |
| WORD16 index; |
| WORD32 length; |
| |
| WORD32 read_word; |
| WORD32 increment; |
| |
| read_word = ixheaacd_aac_showbits_32(itt_bit_buff->byte_ptr, |
| itt_bit_buff->bit_count, &increment); |
| |
| UWORD8 *ptr_read_next = itt_bit_buff->byte_ptr; |
| ptr_read_next += increment; |
| |
| ixheaacd_huff_sfb_table(read_word, &index, &length, code_book_tbl, idx_table); |
| cw_len = length; |
| |
| ixheaacd_aac_read_byte_corr1(&ptr_read_next, &length, &read_word, NULL); |
| |
| out1 = index / 17; |
| out2 = index - out1 * 17; |
| flush_cw = read_word << length; |
| |
| sp1 = out1; |
| sp2 = out2; |
| |
| if (out1) { |
| if (flush_cw & 0x80000000) { |
| out1 = -out1; |
| } |
| flush_cw = (WORD32)flush_cw << 1; |
| length++; |
| cw_len++; |
| } |
| |
| if (out2) { |
| if (flush_cw & 0x80000000) { |
| out2 = -out2; |
| } |
| length++; |
| cw_len++; |
| } |
| |
| ixheaacd_aac_read_byte_corr1(&ptr_read_next, &length, &read_word, NULL); |
| |
| if (sp1 == 16) { |
| i = 4; |
| value = ixheaacd_extu(read_word, length, 23); |
| value = value | 0xfffffe00; |
| norm_val = ixheaacd_norm32(value); |
| |
| i += (norm_val - 22); |
| length += (norm_val - 21); |
| cw_len += (norm_val - 21); |
| |
| ixheaacd_aac_read_byte_corr1(&ptr_read_next, &length, &read_word, NULL); |
| |
| off = ixheaacd_extu(read_word, length, 32 - i); |
| length += i; |
| cw_len += i; |
| |
| ixheaacd_aac_read_byte_corr1(&ptr_read_next, &length, &read_word, NULL); |
| |
| i = off + ((WORD32)1 << i); |
| |
| if (out1 < 0) |
| *spec_coef++ = -i; |
| else |
| *spec_coef++ = i; |
| } else { |
| *spec_coef++ = out1; |
| } |
| |
| if (sp2 == 16) { |
| i = 4; |
| value = ixheaacd_extu(read_word, length, 23); |
| value = value | 0xfffffe00; |
| norm_val = ixheaacd_norm32(value); |
| |
| i += (norm_val - 22); |
| length += (norm_val - 21); |
| cw_len += (norm_val - 21); |
| |
| ixheaacd_aac_read_byte_corr1(&ptr_read_next, &length, &read_word, NULL); |
| |
| off = ixheaacd_extu(read_word, length, 32 - i); |
| length += i; |
| cw_len += i; |
| |
| ixheaacd_aac_read_byte_corr1(&ptr_read_next, &length, &read_word, NULL); |
| i = off + ((WORD32)1 << i); |
| |
| if (out2 < 0) |
| *spec_coef++ = -i; |
| else |
| *spec_coef++ = i; |
| } else { |
| *spec_coef++ = out2; |
| } |
| |
| return cw_len; |
| } |
| |
| static VOID ixheaacd_decode_hcr_non_pcw( |
| ia_bit_buf_struct *itt_bit_buff, ia_hcr_info_struct *ptr_hcr_info, |
| ia_aac_dec_tables_struct *ptr_aac_tables, WORD32 *cw_offset, WORD32 trial, |
| WORD32 start) { |
| WORD16 codeword_len = 0; |
| WORD8 seg_bits_left; |
| UWORD8 tot_bits_to_save, code_bits_to_save, extra_code_bits; |
| WORD32 segment_offset = 0; |
| WORD8 *p_remaining_bits_in_seg = |
| ptr_hcr_info->str_segment_info.p_remaining_bits_in_seg; |
| WORD32 num_segment = ptr_hcr_info->str_segment_info.num_segment; |
| |
| for (segment_offset = start; segment_offset < trial; |
| segment_offset++, *cw_offset += 1) { |
| if (p_remaining_bits_in_seg[segment_offset] && |
| !ptr_hcr_info->str_segment_info.is_decoded[*cw_offset]) { |
| { |
| UWORD32 i_qsc; |
| WORD8 current_seg_bits = p_remaining_bits_in_seg[segment_offset]; |
| |
| itt_bit_buff->byte_ptr = itt_bit_buff->ptr_start; |
| itt_bit_buff->valid_bits = 0; |
| itt_bit_buff->byte = 0; |
| itt_bit_buff->bit_count = 0; |
| itt_bit_buff->write_bit_count = 0; |
| |
| if (ptr_hcr_info->str_segment_info.p_num_bits[*cw_offset]) { |
| extra_code_bits = max( |
| ptr_hcr_info->str_segment_info.p_num_bits[*cw_offset] - 32, 0); |
| code_bits_to_save = |
| min(ptr_hcr_info->str_segment_info.p_num_bits[*cw_offset], 32); |
| |
| ixheaacd_write_bit( |
| itt_bit_buff, |
| ptr_hcr_info->str_segment_info.code_extra[*cw_offset], |
| extra_code_bits); |
| ixheaacd_write_bit(itt_bit_buff, |
| ptr_hcr_info->str_segment_info.code[*cw_offset], |
| code_bits_to_save); |
| } |
| { |
| UWORD32 bit; |
| WORD32 read_bit_offset; |
| |
| if (ptr_hcr_info->str_segment_info.read_direction == |
| FROM_LEFT_TO_RIGHT) { |
| read_bit_offset = |
| ptr_hcr_info->str_segment_info.arr_seg_start_l[segment_offset] - |
| (itt_bit_buff->size - itt_bit_buff->cnt_bits); |
| if (read_bit_offset) { |
| itt_bit_buff->cnt_bits += -read_bit_offset; |
| } |
| itt_bit_buff->ptr_read_next = |
| itt_bit_buff->ptr_bit_buf_base + |
| ((itt_bit_buff->size - itt_bit_buff->cnt_bits) >> 3); |
| itt_bit_buff->bit_pos = |
| ((itt_bit_buff->size - itt_bit_buff->cnt_bits) & 7); |
| |
| for (; p_remaining_bits_in_seg[segment_offset] > 0; |
| p_remaining_bits_in_seg[segment_offset] -= 1) { |
| bit = ixheaacd_aac_read_bit_rev(itt_bit_buff); |
| ptr_hcr_info->str_segment_info.arr_seg_start_l[segment_offset] += |
| 1; |
| |
| ixheaacd_write_bit(itt_bit_buff, bit, 1); |
| } |
| |
| } else { |
| read_bit_offset = |
| ptr_hcr_info->str_segment_info.arr_seg_start_r[segment_offset] - |
| (itt_bit_buff->size - itt_bit_buff->cnt_bits); |
| if (read_bit_offset) { |
| itt_bit_buff->cnt_bits += -read_bit_offset; |
| } |
| itt_bit_buff->ptr_read_next = |
| itt_bit_buff->ptr_bit_buf_base + |
| ((itt_bit_buff->size - itt_bit_buff->cnt_bits) >> 3); |
| itt_bit_buff->bit_pos = |
| ((itt_bit_buff->size - itt_bit_buff->cnt_bits) & 7); |
| |
| for (; p_remaining_bits_in_seg[segment_offset] > 0; |
| p_remaining_bits_in_seg[segment_offset] -= 1) { |
| bit = ixheaacd_aac_read_bit(itt_bit_buff); |
| ptr_hcr_info->str_segment_info.arr_seg_start_r[segment_offset] -= |
| 1; |
| ixheaacd_write_bit(itt_bit_buff, bit, 1); |
| } |
| } |
| } |
| |
| ixheaacd_write_bit(itt_bit_buff, 0, 32 - itt_bit_buff->bit_count % 32); |
| itt_bit_buff->valid_bits = 8; |
| itt_bit_buff->byte_ptr = itt_bit_buff->ptr_start; |
| itt_bit_buff->byte = *itt_bit_buff->ptr_start; |
| |
| if (current_seg_bits) { |
| i_qsc = ptr_hcr_info->str_non_pcw_side_info |
| .res_ptr_idx[*cw_offset % num_segment]; |
| |
| if (ptr_hcr_info->str_non_pcw_side_info |
| .ptr_cb[*cw_offset % num_segment] <= 4) { |
| WORD32 tbl_sign = 0; |
| const UWORD16 *cb_table = |
| (UWORD16 |
| *)(ptr_aac_tables |
| ->code_book[ptr_hcr_info->str_non_pcw_side_info |
| .ptr_cb[*cw_offset % num_segment]]); |
| const UWORD32 *idx_table = |
| (UWORD32 *)(ptr_aac_tables->index_table |
| [ptr_hcr_info->str_non_pcw_side_info |
| .ptr_cb[*cw_offset % num_segment]]); |
| |
| if (ptr_hcr_info->str_non_pcw_side_info |
| .ptr_cb[*cw_offset % num_segment] > 2) { |
| tbl_sign = 1; |
| } |
| |
| codeword_len = ixheaacd_huff_dec_quad_hcr_non_pcw( |
| itt_bit_buff, |
| &ptr_hcr_info->str_non_pcw_side_info.ptr_result_base[i_qsc], |
| cb_table, tbl_sign, idx_table); |
| |
| seg_bits_left = |
| current_seg_bits - codeword_len + |
| ptr_hcr_info->str_segment_info.p_num_bits[*cw_offset]; |
| |
| } |
| |
| else if (ptr_hcr_info->str_non_pcw_side_info |
| .ptr_cb[*cw_offset % num_segment] < 11) { |
| WORD32 tbl_sign = 0; |
| WORD32 huff_mode = 9; |
| |
| const UWORD16 *cb_table = |
| (UWORD16 |
| *)(ptr_aac_tables |
| ->code_book[ptr_hcr_info->str_non_pcw_side_info |
| .ptr_cb[*cw_offset % num_segment]]); |
| const UWORD32 *idx_table = |
| (UWORD32 *)(ptr_aac_tables->index_table |
| [ptr_hcr_info->str_non_pcw_side_info |
| .ptr_cb[*cw_offset % num_segment]]); |
| |
| if (ptr_hcr_info->str_non_pcw_side_info |
| .ptr_cb[*cw_offset % num_segment] > 6) { |
| if (ptr_hcr_info->str_non_pcw_side_info |
| .ptr_cb[*cw_offset % num_segment] > 8) |
| huff_mode = 13; |
| else |
| huff_mode = 8; |
| tbl_sign = 1; |
| } |
| codeword_len = ixheaacd_huff_dec_pair_hcr_non_pcw( |
| itt_bit_buff, |
| &ptr_hcr_info->str_non_pcw_side_info.ptr_result_base[i_qsc], |
| cb_table, tbl_sign, idx_table, huff_mode); |
| |
| seg_bits_left = |
| current_seg_bits - codeword_len + |
| ptr_hcr_info->str_segment_info.p_num_bits[*cw_offset]; |
| } |
| if (ptr_hcr_info->str_non_pcw_side_info |
| .ptr_cb[*cw_offset % num_segment] >= 11) { |
| const UWORD32 *idx_table = |
| ptr_aac_tables->pstr_huffmann_tables->idx_table_hf11; |
| const UWORD16 *cb_table = |
| ptr_aac_tables->pstr_huffmann_tables->input_table_cb11; |
| |
| codeword_len = ixheaacd_huff_dec_word_hcr_non_pcw( |
| itt_bit_buff, |
| &ptr_hcr_info->str_non_pcw_side_info.ptr_result_base[i_qsc], |
| cb_table, idx_table); |
| |
| seg_bits_left = |
| current_seg_bits - codeword_len + |
| ptr_hcr_info->str_segment_info.p_num_bits[*cw_offset]; |
| } |
| if (seg_bits_left < 0) { |
| tot_bits_to_save = |
| current_seg_bits + |
| ptr_hcr_info->str_segment_info.p_num_bits[*cw_offset]; |
| extra_code_bits = max(tot_bits_to_save - 32, 0); |
| code_bits_to_save = min(tot_bits_to_save, 32); |
| |
| ptr_hcr_info->str_segment_info.code_extra[*cw_offset] = |
| ixheaacd_read_bit(itt_bit_buff, extra_code_bits); |
| ptr_hcr_info->str_segment_info.code[*cw_offset] = |
| ixheaacd_read_bit(itt_bit_buff, code_bits_to_save); |
| ptr_hcr_info->str_segment_info.p_num_bits[*cw_offset] = |
| tot_bits_to_save; |
| |
| p_remaining_bits_in_seg[segment_offset] = 0; |
| if (p_remaining_bits_in_seg[segment_offset] < 0) |
| p_remaining_bits_in_seg[segment_offset] = 0; |
| } else { |
| p_remaining_bits_in_seg[segment_offset] = |
| current_seg_bits - |
| (codeword_len - |
| ptr_hcr_info->str_segment_info.p_num_bits[*cw_offset]); |
| ptr_hcr_info->str_segment_info.p_num_bits[*cw_offset] = 0; |
| ptr_hcr_info->str_segment_info.is_decoded[*cw_offset] = 1; |
| if (p_remaining_bits_in_seg[segment_offset] < 0) |
| p_remaining_bits_in_seg[segment_offset] = 0; |
| } |
| |
| if (p_remaining_bits_in_seg[segment_offset] > 0) { |
| if (ptr_hcr_info->str_segment_info.read_direction == |
| FROM_LEFT_TO_RIGHT) |
| ptr_hcr_info->str_segment_info.arr_seg_start_l[segment_offset] -= |
| (p_remaining_bits_in_seg[segment_offset]); |
| else |
| ptr_hcr_info->str_segment_info.arr_seg_start_r[segment_offset] += |
| (p_remaining_bits_in_seg[segment_offset]); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| VOID ixheaacd_decode_non_pcw(ia_bit_buf_struct *itt_bit_buff, |
| ia_hcr_info_struct *ptr_hcr_info, |
| ia_aac_dec_tables_struct *ptr_aac_tables) { |
| UWORD32 num_valid_segment; |
| WORD32 cw_offset; |
| WORD32 trial; |
| WORD32 num_segment; |
| WORD32 num_code_word; |
| UWORD8 num_set; |
| UWORD8 current_set; |
| WORD32 code_word_set; |
| WORD32 loop1, loop2; |
| |
| num_segment = ptr_hcr_info->str_segment_info.num_segment; |
| |
| num_valid_segment = ixheaacd_init_segment_bit_field( |
| num_segment, ptr_hcr_info->str_segment_info.p_remaining_bits_in_seg); |
| |
| if (num_valid_segment != 0) { |
| num_code_word = ptr_hcr_info->sect_info.num_code_word; |
| num_set = ((num_code_word - 1) / num_segment) + 1; |
| |
| ptr_hcr_info->str_segment_info.read_direction = FROM_RIGHT_TO_LEFT; |
| |
| for (current_set = 1; current_set < num_set; current_set++) { |
| num_code_word -= num_segment; |
| if (num_code_word < num_segment) { |
| code_word_set = num_code_word; |
| } else { |
| code_word_set = num_segment; |
| } |
| |
| ixheaacd_nonpcw_sideinfo_init(ptr_hcr_info); |
| |
| cw_offset = num_segment * current_set; |
| |
| ixheaacd_decode_hcr_non_pcw(itt_bit_buff, ptr_hcr_info, ptr_aac_tables, |
| &cw_offset, code_word_set, 0); |
| |
| for (trial = 1; trial < num_segment; trial++) { |
| cw_offset = num_segment * current_set; |
| |
| loop1 = min(num_segment, trial + code_word_set); |
| loop2 = max(0, trial + code_word_set - num_segment); |
| |
| ixheaacd_decode_hcr_non_pcw(itt_bit_buff, ptr_hcr_info, ptr_aac_tables, |
| &cw_offset, loop1, trial); |
| |
| ixheaacd_decode_hcr_non_pcw(itt_bit_buff, ptr_hcr_info, ptr_aac_tables, |
| &cw_offset, loop2, 0); |
| } |
| |
| ptr_hcr_info->str_segment_info.read_direction = ixheaacd_toggle_read_dir( |
| ptr_hcr_info->str_segment_info.read_direction); |
| } |
| } |
| } |
| |
| static VOID ixheaacd_hcr_reorder_quantized_spec_coeff( |
| ia_hcr_info_struct *ptr_hcr_info, |
| ia_aac_dec_channel_info_struct *ptr_aac_dec_channel_info) { |
| WORD32 qsc; |
| UWORD32 abs_qsc; |
| UWORD32 i, j; |
| UWORD16 num_spec_val_sect; |
| WORD32 *ptr_teva; |
| UWORD16 lav_err_cnt = 0; |
| |
| UWORD32 num_sect = ptr_hcr_info->str_dec_io.num_sect; |
| WORD32 *ptr_quant_spec_coeff_base = |
| ptr_hcr_info->str_dec_io.ptr_quant_spec_coeff_base; |
| WORD32 *ptr_quant_spec_coeff = |
| ptr_hcr_info->str_dec_io.ptr_quant_spec_coeff_base; |
| const UWORD8 *ptr_cb_dim_shift_tbl = |
| ptr_hcr_info->table_info.ptr_cb_dim_shift_tbl; |
| const UWORD16 *ptr_lav_tbl = ptr_hcr_info->table_info.ptr_lav_tbl; |
| UWORD8 *ptr_sorted_cb = ptr_hcr_info->sect_info.ptr_sorted_cb; |
| UWORD16 *ptr_num_sorted_cw_in_sect = |
| ptr_hcr_info->sect_info.ptr_num_sorted_cw_in_sect; |
| UWORD16 *ptr_reorder_offset = ptr_hcr_info->sect_info.ptr_reorder_offset; |
| WORD32 *arr_temp_values = ptr_hcr_info->str_segment_info.arr_temp_values; |
| WORD32 *ptr_bak = ptr_hcr_info->str_segment_info.arr_temp_values; |
| |
| for (i = num_sect; i != 0; i--) { |
| num_spec_val_sect = *ptr_num_sorted_cw_in_sect++ |
| << ptr_cb_dim_shift_tbl[*ptr_sorted_cb]; |
| ptr_teva = &arr_temp_values[*ptr_reorder_offset++]; |
| for (j = num_spec_val_sect; j != 0; j--) { |
| qsc = *ptr_quant_spec_coeff++; |
| abs_qsc = ixheaacd_abs32(qsc); |
| if (abs_qsc <= ptr_lav_tbl[*ptr_sorted_cb]) { |
| *ptr_teva++ = (WORD32)qsc; |
| } else { |
| if (abs_qsc == 8192) { |
| *ptr_teva++ = (WORD32)qsc; |
| } else { |
| *ptr_teva++ = (WORD32)8192; |
| lav_err_cnt += 1; |
| } |
| } |
| } |
| ptr_sorted_cb++; |
| } |
| |
| if (ptr_aac_dec_channel_info->str_ics_info.window_sequence == |
| EIGHT_SHORT_SEQUENCE) { |
| WORD32 *ptr_out; |
| WORD8 window; |
| |
| ptr_bak = ptr_hcr_info->str_segment_info.arr_temp_values; |
| for (window = 0; window < 8; window++) { |
| ptr_out = ptr_quant_spec_coeff_base + |
| (window * ptr_aac_dec_channel_info->granule_len); |
| for (i = 0; i < (LINES_PER_UNIT_GROUP); i++) { |
| ptr_teva = ptr_bak + (window << 2) + i * 32; |
| for (j = (LINES_PER_UNIT); j != 0; j--) { |
| *ptr_out++ = *ptr_teva++; |
| } |
| } |
| } |
| } else { |
| ptr_quant_spec_coeff = ptr_quant_spec_coeff_base; |
| for (i = 1024; i != 0; i--) { |
| *ptr_quant_spec_coeff++ = *ptr_bak++; |
| } |
| } |
| |
| if (lav_err_cnt != 0) { |
| ptr_hcr_info->str_dec_io.err_log |= (ERROR_POS << 1); |
| } |
| } |
| |
| static VOID ixheaacd_err_detect_segmentation_final( |
| ia_hcr_info_struct *ptr_hcr_info) { |
| UWORD8 segmentation_err_flag = 0; |
| UWORD16 i; |
| WORD8 *p_remaining_bits_in_seg = |
| ptr_hcr_info->str_segment_info.p_remaining_bits_in_seg; |
| UWORD32 num_segment = ptr_hcr_info->str_segment_info.num_segment; |
| |
| for (i = num_segment; i != 0; i--) { |
| if (*p_remaining_bits_in_seg++ != 0) { |
| segmentation_err_flag = 1; |
| } |
| } |
| if (segmentation_err_flag == 1) { |
| ptr_hcr_info->str_dec_io.err_log |= ERROR_POS; |
| } |
| } |
| |
| UWORD32 ixheaacd_hcr_decoder( |
| ia_hcr_info_struct *ptr_hcr_info, |
| ia_aac_dec_channel_info_struct *ptr_aac_dec_channel_info, |
| ia_aac_dec_tables_struct *ptr_aac_tables, ia_bit_buf_struct *itt_bit_buff) { |
| WORD32 ptr_tmp1, ptr_tmp2, ptr_tmp3, ptr_tmp4; |
| WORD32 ptr_tmp5; |
| |
| WORD32 bit_cnt_offset; |
| UWORD32 save_bit_cnt = itt_bit_buff->cnt_bits; |
| |
| ixheaacd_huff_calc_num_cwd(ptr_hcr_info); |
| |
| ixheaacd_huff_sort_sect_cb_cwd(ptr_hcr_info); |
| |
| if (ixheaacd_hcr_prepare_segmentation_grid(ptr_hcr_info) != 0) |
| return (ptr_hcr_info->str_dec_io.err_log); |
| |
| ixheaacd_huff_ext_sect_info(ptr_hcr_info); |
| |
| if ((ptr_hcr_info->str_dec_io.err_log & HCR_FATAL_PCW_ERROR_MASK) != 0) { |
| return (ptr_hcr_info->str_dec_io.err_log); |
| } |
| |
| ixheaacd_calc_num_ext_sorted_sect_sets( |
| ptr_hcr_info->str_segment_info.num_segment, |
| ptr_hcr_info->sect_info.ptr_num_ext_sorted_cw_in_sect, |
| ptr_hcr_info->sect_info.num_ext_sorted_cw_in_sect_idx, |
| ptr_hcr_info->sect_info.ptr_num_ext_sorted_sect_in_sets, |
| ptr_hcr_info->sect_info.num_ext_sorted_sect_in_sets_idx); |
| |
| ptr_tmp1 = ptr_hcr_info->sect_info.num_ext_sorted_cw_in_sect_idx; |
| ptr_tmp2 = ptr_hcr_info->sect_info.ext_sorted_cw_idx; |
| ptr_tmp3 = ptr_hcr_info->sect_info.num_ext_sorted_sect_in_sets_idx; |
| ptr_tmp4 = ptr_hcr_info->str_dec_io.quant_spec_coeff_idx; |
| ptr_tmp5 = ptr_hcr_info->sect_info.ext_sorted_sect_max_cb_len_idx; |
| |
| ixheaacd_decode_pcw(itt_bit_buff, ptr_hcr_info, ptr_aac_tables); |
| |
| if ((ptr_hcr_info->str_dec_io.err_log & HCR_FATAL_PCW_ERROR_MASK) == 0) { |
| ixheaacd_decode_non_pcw(itt_bit_buff, ptr_hcr_info, ptr_aac_tables); |
| } |
| |
| ixheaacd_err_detect_segmentation_final(ptr_hcr_info); |
| |
| ptr_hcr_info->sect_info.num_ext_sorted_cw_in_sect_idx = ptr_tmp1; |
| ptr_hcr_info->sect_info.ext_sorted_cw_idx = ptr_tmp2; |
| ptr_hcr_info->sect_info.num_ext_sorted_sect_in_sets_idx = ptr_tmp3; |
| ptr_hcr_info->str_dec_io.quant_spec_coeff_idx = ptr_tmp4; |
| ptr_hcr_info->sect_info.ext_sorted_sect_max_cb_len_idx = ptr_tmp5; |
| |
| ixheaacd_hcr_reorder_quantized_spec_coeff(ptr_hcr_info, |
| ptr_aac_dec_channel_info); |
| |
| bit_cnt_offset = (WORD32)itt_bit_buff->cnt_bits - (WORD32)save_bit_cnt; |
| if (bit_cnt_offset) { |
| itt_bit_buff->cnt_bits += -bit_cnt_offset; |
| itt_bit_buff->ptr_read_next = |
| itt_bit_buff->ptr_bit_buf_base + |
| ((itt_bit_buff->size - itt_bit_buff->cnt_bits) >> 3); |
| itt_bit_buff->bit_pos = (itt_bit_buff->size - itt_bit_buff->cnt_bits) & 7; |
| } |
| |
| return (ptr_hcr_info->str_dec_io.err_log); |
| } |
