| /****************************************************************************** |
| * * |
| * 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 <stdio.h> |
| #include <string.h> |
| #include <stdlib.h> |
| |
| #include <ixheaacd_type_def.h> |
| |
| #include "ixheaacd_cnst.h" |
| |
| #include "ixheaacd_bitbuffer.h" |
| |
| #include "ixheaacd_interface.h" |
| #include "ixheaacd_acelp_info.h" |
| |
| #include "ixheaacd_tns_usac.h" |
| #include "ixheaacd_acelp_info.h" |
| |
| #include "ixheaacd_sbrdecsettings.h" |
| #include "ixheaacd_info.h" |
| #include "ixheaacd_sbr_common.h" |
| #include "ixheaacd_drc_data_struct.h" |
| #include "ixheaacd_drc_dec.h" |
| |
| #include "ixheaacd_sbrdecoder.h" |
| #include "ixheaacd_mps_polyphase.h" |
| #include "ixheaacd_sbr_const.h" |
| |
| #include "ixheaacd_main.h" |
| #include "ixheaacd_arith_dec.h" |
| #include "ixheaacd_tns_usac.h" |
| |
| #include "ixheaacd_bit_extract.h" |
| |
| #include "ixheaacd_constants.h" |
| #include <ixheaacd_type_def.h> |
| #include <ixheaacd_basic_ops32.h> |
| #include <ixheaacd_basic_ops40.h> |
| |
| #include "ixheaacd_func_def.h" |
| |
| #include "ixheaacd_defines.h" |
| #include "ixheaacd_windows.h" |
| |
| #include "ixheaacd_vec_baisc_ops.h" |
| #include "ixheaacd_config.h" |
| |
| const WORD16 ixheaacd_mdst_fcoeff_long_sin[] = {0, 0, -16384, 0, 16384, 0, 0}; |
| const WORD16 ixheaacd_mdst_fcoeff_long_kbd[] = {-2998, 0, -19052, 0, |
| 19052, 0, 2998}; |
| const WORD16 ixheaacd_mdst_fcoeff_long_sin_kbd[] = {-1499, -1876, -17718, 0, |
| 17718, 1876, 1499}; |
| const WORD16 ixheaacd_mdst_fcoeff_long_kbd_sin[] = {-1499, 1876, -17718, 0, |
| 17718, -1876, 1499}; |
| |
| const WORD16 *ixheaacd_mdst_fcoeff_longshort_curr[2][2] = { |
| {ixheaacd_mdst_fcoeff_long_sin, ixheaacd_mdst_fcoeff_long_sin_kbd}, |
| {ixheaacd_mdst_fcoeff_long_kbd_sin, ixheaacd_mdst_fcoeff_long_kbd}}; |
| |
| const WORD16 ixheaacd_mdst_fcoeff_start_sin[] = {-3364, -3401, -18584, 0, |
| 18584, 3401, 3364}; |
| const WORD16 ixheaacd_mdst_fcoeff_start_kbd[] = {-4932, -1572, -19942, 0, |
| 19942, 1572, 4932}; |
| const WORD16 ixheaacd_mdst_fcoeff_start_sin_kbd[] = {-3433, -3447, -18608, 0, |
| 18608, 3447, 3433}; |
| const WORD16 ixheaacd_mdst_fcoeff_start_kbd_sin[] = {-4863, -1525, -19918, 0, |
| 19918, 1525, 4863}; |
| |
| const WORD16 *ixheaacd_mdst_fcoeff_start_curr[2][2] = { |
| {ixheaacd_mdst_fcoeff_start_sin, ixheaacd_mdst_fcoeff_start_sin_kbd}, |
| {ixheaacd_mdst_fcoeff_start_kbd_sin, ixheaacd_mdst_fcoeff_start_kbd}}; |
| |
| const WORD16 ixheaacd_mdst_fcoeff_stop_sin[] = {-3364, 3401, -18584, 0, |
| 18584, -3401, 3364}; |
| const WORD16 ixheaacd_mdst_fcoeff_stop_kbd[] = {-4932, 1572, -19942, 0, |
| 19942, -1572, 4932}; |
| const WORD16 ixheaacd_mdst_fcoeff_stop_sin_kbd[] = {-4863, 1525, -19918, 0, |
| 19918, -1525, 4863}; |
| const WORD16 ixheaacd_mdst_fcoeff_stop_kbd_sin[] = {-3433, 3447, -18608, 0, |
| 18608, -3447, 3433}; |
| |
| const WORD16 *ixheaacd_mdst_fcoeff_stop_cur[2][2] = { |
| {ixheaacd_mdst_fcoeff_stop_sin, ixheaacd_mdst_fcoeff_stop_sin_kbd}, |
| {ixheaacd_mdst_fcoeff_stop_kbd_sin, ixheaacd_mdst_fcoeff_stop_kbd}}; |
| |
| const WORD16 ixheaacd_mdst_fcoeff_stopstart_sin[] = {-6728, 0, -20785, 0, |
| 20785, 0, 6728}; |
| const WORD16 ixheaacd_mdst_fcoeff_stopstart_kbd[] = {-6866, -0, -20831, 0, |
| 20831, 0, 6866}; |
| const WORD16 ixheaacd_mdst_fcoeff_stopstart_sin_kbd[] = {-6797, -46, -20808, 0, |
| 20808, 46, 6797}; |
| const WORD16 ixheaacd_mdst_fcoeff_stopstart_kbd_sin[] = {-6797, 46, -20808, 0, |
| 20808, 46, 6797}; |
| |
| const WORD16 *ixheaacd_mdst_fcoeff_stopstart_cur[2][2] = { |
| {ixheaacd_mdst_fcoeff_stopstart_sin, |
| ixheaacd_mdst_fcoeff_stopstart_sin_kbd}, |
| {ixheaacd_mdst_fcoeff_stopstart_kbd_sin, |
| ixheaacd_mdst_fcoeff_stopstart_kbd}}; |
| |
| const WORD16 ixheaacd_mdst_fcoeff_l_s_start_left_sin[] = { |
| -0, 3477, 8192, 10430, 8192, 3477, -0}; |
| const WORD16 ixheaacd_mdst_fcoeff_l_s_start_left_kbd[] = { |
| 1950, 4054, 6114, 6982, 6114, 4054, 1950}; |
| |
| const WORD16 ixheaacd_mdst_fcoeff_stop_stopstart_left_sin[] = { |
| 1262, 1285, 1299, 1304, 1299, 1285, 1262}; |
| const WORD16 ixheaacd_mdst_fcoeff_stop_stopstart_left_kbd[] = { |
| 857, 866, 871, 873, 871, 866, 857}; |
| |
| const WORD16 *ixheaacd_mdst_fcoeff_l_s_start_left_prev[2] = { |
| ixheaacd_mdst_fcoeff_l_s_start_left_sin, |
| ixheaacd_mdst_fcoeff_l_s_start_left_kbd}; |
| const WORD16 *ixheaacd_mdst_fcoeff_stop_stopstart_left_prev[2] = { |
| ixheaacd_mdst_fcoeff_stop_stopstart_left_sin, |
| ixheaacd_mdst_fcoeff_stop_stopstart_left_kbd}; |
| |
| #define ONE_BY_TWO_POW_14 0.00006103515625 |
| #define ONE_BY_TWO_POW_15 0.000030517578125 |
| |
| void ixheaacd_usac_cplx_save_prev(ia_sfb_info_struct *info, WORD32 *l_spec, |
| WORD32 *r_spec, WORD32 *l_spec_prev, |
| WORD32 *r_spec_prev) { |
| WORD32 ixheaacd_drc_offset; |
| |
| ixheaacd_drc_offset = info->samp_per_bk - info->bins_per_sbk; |
| |
| memcpy(l_spec_prev + ixheaacd_drc_offset, l_spec + ixheaacd_drc_offset, |
| sizeof(WORD32) * info->bins_per_sbk); |
| memcpy(r_spec_prev + ixheaacd_drc_offset, r_spec + ixheaacd_drc_offset, |
| sizeof(WORD32) * info->bins_per_sbk); |
| } |
| |
| static WORD32 ixheaacd_cplx_pred_data( |
| ia_usac_data_struct *usac_data, |
| ia_usac_tmp_core_coder_struct *pstr_core_coder, WORD32 num_window_groups, |
| ia_bit_buf_struct *it_bit_buff) { |
| ia_huff_code_book_struct *ptr_huff_code_book = &ixheaacd_book; |
| ia_huff_code_word_struct *ptr_huff_code_word = |
| ptr_huff_code_book->pstr_huff_code_word; |
| WORD32 cplx_pred_all; |
| WORD32 delta_code_time; |
| WORD32 g, sfb; |
| WORD32 dpcm_alpha, last_alpha_q_re, last_alpha_q_im; |
| UWORD8 max_sfb_ste = pstr_core_coder->max_sfb_ste; |
| |
| WORD32(*alpha_q_re)[SFB_NUM_MAX] = usac_data->alpha_q_re; |
| WORD32(*alpha_q_im)[SFB_NUM_MAX] = usac_data->alpha_q_im; |
| WORD32 *alpha_q_re_prev = usac_data->alpha_q_re_prev; |
| WORD32 *alpha_q_im_prev = usac_data->alpha_q_im_prev; |
| UWORD8(*cplx_pred_used)[SFB_NUM_MAX] = usac_data->cplx_pred_used; |
| |
| cplx_pred_all = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| if (cplx_pred_all == 0) { |
| for (g = 0; g < num_window_groups; g++) { |
| for (sfb = 0; sfb < max_sfb_ste; sfb += SFB_PER_PRED_BAND) { |
| cplx_pred_used[g][sfb] = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| if (sfb + 1 < max_sfb_ste) |
| cplx_pred_used[g][sfb + 1] = cplx_pred_used[g][sfb]; |
| } |
| for (sfb = max_sfb_ste; sfb < SFB_NUM_MAX; sfb++) |
| cplx_pred_used[g][sfb] = 0; |
| } |
| } else { |
| for (g = 0; g < num_window_groups; g++) { |
| for (sfb = 0; sfb < max_sfb_ste; sfb++) cplx_pred_used[g][sfb] = 1; |
| |
| for (sfb = max_sfb_ste; sfb < SFB_NUM_MAX; sfb++) |
| cplx_pred_used[g][sfb] = 0; |
| } |
| } |
| |
| pstr_core_coder->pred_dir = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| pstr_core_coder->complex_coef = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| if (pstr_core_coder->complex_coef) { |
| if (usac_data->usac_independency_flg) |
| pstr_core_coder->use_prev_frame = 0; |
| else |
| pstr_core_coder->use_prev_frame = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| } |
| |
| if (usac_data->usac_independency_flg) |
| delta_code_time = 0; |
| else |
| delta_code_time = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| for (g = 0; g < num_window_groups; g++) { |
| for (sfb = 0; sfb < max_sfb_ste; sfb += SFB_PER_PRED_BAND) { |
| if (delta_code_time == 1) { |
| last_alpha_q_re = alpha_q_re_prev[sfb]; |
| last_alpha_q_im = alpha_q_im_prev[sfb]; |
| } else { |
| if (sfb > 0) { |
| last_alpha_q_re = alpha_q_re[g][sfb - 1]; |
| last_alpha_q_im = alpha_q_im[g][sfb - 1]; |
| } else { |
| last_alpha_q_re = last_alpha_q_im = 0; |
| } |
| } |
| |
| if (cplx_pred_used[g][sfb] == 1) { |
| dpcm_alpha = |
| -ixheaacd_huff_codeword(ptr_huff_code_word, 0, it_bit_buff) + 60; |
| alpha_q_re[g][sfb] = dpcm_alpha + last_alpha_q_re; |
| |
| if (pstr_core_coder->complex_coef) { |
| dpcm_alpha = |
| -ixheaacd_huff_codeword(ptr_huff_code_word, 0, it_bit_buff) + 60; |
| alpha_q_im[g][sfb] = dpcm_alpha + last_alpha_q_im; |
| } else { |
| alpha_q_im[g][sfb] = 0; |
| } |
| } else { |
| alpha_q_re[g][sfb] = 0; |
| alpha_q_im[g][sfb] = 0; |
| } |
| |
| if ((sfb + 1) < max_sfb_ste) { |
| alpha_q_re[g][sfb + 1] = alpha_q_re[g][sfb]; |
| alpha_q_im[g][sfb + 1] = alpha_q_im[g][sfb]; |
| } |
| |
| alpha_q_re_prev[sfb] = alpha_q_re[g][sfb]; |
| alpha_q_im_prev[sfb] = alpha_q_im[g][sfb]; |
| } |
| for (sfb = max_sfb_ste; sfb < SFB_NUM_MAX; sfb++) { |
| alpha_q_re[g][sfb] = 0; |
| alpha_q_im[g][sfb] = 0; |
| alpha_q_re_prev[sfb] = 0; |
| alpha_q_im_prev[sfb] = 0; |
| } |
| } |
| |
| return 1; |
| } |
| |
| static WORD32 ixheaacd_read_ms_mask( |
| ia_usac_data_struct *usac_data, |
| ia_usac_tmp_core_coder_struct *pstr_core_coder, |
| ia_bit_buf_struct *it_bit_buff, WORD32 chn) { |
| WORD32 g, sfb; |
| WORD32 ms_mask_present; |
| |
| UWORD8 *sfb_group = usac_data->group_dis[chn]; |
| UWORD8 max_sfb = pstr_core_coder->max_sfb_ste; |
| UWORD8 *ms_used = usac_data->ms_used[chn]; |
| ia_sfb_info_struct *info = usac_data->pstr_sfb_info[chn]; |
| |
| ms_mask_present = ixheaacd_read_bits_buf(it_bit_buff, 2); |
| |
| switch (ms_mask_present) { |
| case 0: |
| |
| break; |
| |
| case 1: |
| for (g = 0; g < info->max_win_len; g = *sfb_group++) { |
| for (sfb = 0; sfb < max_sfb; sfb++) { |
| *ms_used = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| ms_used++; |
| } |
| for (; sfb < info->sfb_per_sbk; sfb++) { |
| *ms_used = 0; |
| ms_used++; |
| } |
| } |
| |
| break; |
| case 2: |
| for (g = 0; g < info->max_win_len; g = *sfb_group++) |
| for (sfb = 0; sfb < info->sfb_per_sbk; sfb++) *ms_used++ = 1; |
| break; |
| |
| case 3: |
| |
| ixheaacd_cplx_pred_data(usac_data, pstr_core_coder, info->num_groups, |
| it_bit_buff); |
| return 3; |
| } |
| |
| for (sfb = 0; sfb < SFB_NUM_MAX; sfb++) { |
| usac_data->alpha_q_re_prev[sfb] = 0; |
| usac_data->alpha_q_im_prev[sfb] = 0; |
| } |
| return ms_mask_present; |
| } |
| |
| VOID ixheaacd_ms_stereo(ia_usac_data_struct *usac_data, WORD32 *r_spec, |
| WORD32 *l_spec, WORD32 chn, WORD32 nband) { |
| WORD32 temp_r, temp_l; |
| WORD32 sfb, k, grp, grp_len; |
| ia_sfb_info_struct *ptr_sfb_info = usac_data->pstr_sfb_info[chn]; |
| UWORD8 *ms_used = usac_data->ms_used[chn]; |
| WORD32 ixheaacd_drc_offset = 0; |
| |
| for (grp = 0; grp < ptr_sfb_info->num_groups; grp++) { |
| for (grp_len = 0; grp_len < ptr_sfb_info->group_len[grp]; grp_len++) { |
| ixheaacd_drc_offset = 0; |
| for (sfb = 0; sfb < nband; sfb++) { |
| ixheaacd_drc_offset += ptr_sfb_info->sfb_width[sfb]; |
| if (ms_used[sfb]) { |
| for (k = 0; k < ptr_sfb_info->sfb_width[sfb]; k++) { |
| temp_r = *r_spec; |
| temp_l = *l_spec; |
| *l_spec = ixheaacd_add32_sat(temp_r, temp_l); |
| *r_spec = ixheaacd_sub32_sat(temp_l, temp_r); |
| r_spec++; |
| l_spec++; |
| } |
| } else { |
| r_spec += ptr_sfb_info->sfb_width[sfb]; |
| l_spec += ptr_sfb_info->sfb_width[sfb]; |
| } |
| } |
| |
| l_spec = l_spec + ptr_sfb_info->bins_per_sbk - ixheaacd_drc_offset; |
| r_spec = r_spec + ptr_sfb_info->bins_per_sbk - ixheaacd_drc_offset; |
| } |
| |
| ms_used += ptr_sfb_info->sfb_per_sbk; |
| } |
| } |
| |
| static VOID ixheaacd_filter_and_add(const WORD32 *in, const WORD32 length, |
| const WORD16 *filter, WORD32 *out, |
| const WORD32 factor_even, |
| const WORD32 factor_odd) { |
| WORD32 i; |
| WORD64 sum; |
| |
| sum = ixheaacd_mult32x32in64(in[2], filter[0]); |
| sum = ixheaacd_mac32x32in64(sum, in[1], filter[1]); |
| sum = ixheaacd_mac32x32in64(sum, in[0], filter[2]); |
| sum = ixheaacd_mac32x32in64_n(sum, &in[0], &filter[3], 4); |
| *out = ixheaacd_add32_sat( |
| *out, ixheaacd_sat64_32((((WORD64)sum * (WORD64)factor_even) >> 15))); |
| out++; |
| |
| sum = ixheaacd_mult32x32in64(in[1], filter[0]); |
| sum = ixheaacd_mac32x32in64(sum, in[0], filter[1]); |
| sum = ixheaacd_mac32x32in64_n(sum, &in[0], &filter[2], 5); |
| *out = ixheaacd_add32_sat( |
| *out, ixheaacd_sat64_32((((WORD64)sum * (WORD64)factor_odd) >> 15))); |
| out++; |
| |
| sum = ixheaacd_mult32x32in64(in[0], filter[0]); |
| sum = ixheaacd_mac32x32in64_n(sum, &in[0], &filter[1], 6); |
| *out = ixheaacd_add32_sat( |
| *out, ixheaacd_sat64_32((((WORD64)sum * (WORD64)factor_even) >> 15))); |
| out++; |
| |
| for (i = 3; i < length - 4; i += 2) { |
| sum = 0; |
| sum = ixheaacd_mac32x32in64_7(sum, &in[i - 3], filter); |
| *out = ixheaacd_add32_sat( |
| *out, ixheaacd_sat64_32((((WORD64)sum * (WORD64)factor_odd) >> 15))); |
| out++; |
| |
| sum = 0; |
| sum = ixheaacd_mac32x32in64_7(sum, &in[i - 2], filter); |
| *out = ixheaacd_add32_sat( |
| *out, ixheaacd_sat64_32((((WORD64)sum * (WORD64)factor_even) >> 15))); |
| out++; |
| } |
| i = length - 3; |
| sum = 0; |
| sum = ixheaacd_mac32x32in64_n(sum, &in[i - 3], filter, 6); |
| sum = ixheaacd_mac32x32in64(sum, in[i + 2], filter[6]); |
| *out = ixheaacd_add32_sat( |
| *out, ixheaacd_sat64_32((((WORD64)sum * (WORD64)factor_odd) >> 15))); |
| |
| out++; |
| i = length - 2; |
| sum = 0; |
| sum = ixheaacd_mac32x32in64_n(sum, &in[i - 3], filter, 5); |
| sum = ixheaacd_mac32x32in64(sum, in[i + 1], filter[5]); |
| sum = ixheaacd_mac32x32in64(sum, in[i], filter[6]); |
| |
| *out = ixheaacd_add32_sat( |
| *out, ixheaacd_sat64_32((((WORD64)sum * (WORD64)factor_even) >> 15))); |
| out++; |
| |
| i = length - 1; |
| sum = 0; |
| sum = ixheaacd_mac32x32in64_n(sum, &in[i - 3], filter, 4); |
| sum = ixheaacd_mac32x32in64(sum, in[i], filter[4]); |
| sum = ixheaacd_mac32x32in64(sum, in[i - 1], filter[5]); |
| sum = ixheaacd_mac32x32in64(sum, in[i - 2], filter[6]); |
| |
| *out = ixheaacd_add32_sat( |
| *out, ixheaacd_sat64_32((((WORD64)sum * (WORD64)factor_odd) >> 15))); |
| } |
| |
| static WORD32 ixheaacd_estimate_dmx_im(const WORD32 *dmx_re, |
| const WORD32 *dmx_re_prev, |
| WORD32 *dmx_im, |
| ia_sfb_info_struct *pstr_sfb_info, |
| WORD32 window, const WORD32 w_shape, |
| const WORD32 prev_w_shape) { |
| WORD32 i; |
| const WORD16 *mdst_fcoeff_curr, *mdst_fcoeff_prev; |
| WORD32 err = 0; |
| |
| switch (window) { |
| case ONLY_LONG_SEQUENCE: |
| case EIGHT_SHORT_SEQUENCE: |
| mdst_fcoeff_curr = |
| ixheaacd_mdst_fcoeff_longshort_curr[prev_w_shape][w_shape]; |
| mdst_fcoeff_prev = ixheaacd_mdst_fcoeff_l_s_start_left_prev[prev_w_shape]; |
| break; |
| case LONG_START_SEQUENCE: |
| mdst_fcoeff_curr = ixheaacd_mdst_fcoeff_start_curr[prev_w_shape][w_shape]; |
| mdst_fcoeff_prev = ixheaacd_mdst_fcoeff_l_s_start_left_prev[prev_w_shape]; |
| break; |
| case LONG_STOP_SEQUENCE: |
| mdst_fcoeff_curr = ixheaacd_mdst_fcoeff_stop_cur[prev_w_shape][w_shape]; |
| mdst_fcoeff_prev = |
| ixheaacd_mdst_fcoeff_stop_stopstart_left_prev[prev_w_shape]; |
| break; |
| case STOP_START_SEQUENCE: |
| mdst_fcoeff_curr = |
| ixheaacd_mdst_fcoeff_stopstart_cur[prev_w_shape][w_shape]; |
| mdst_fcoeff_prev = |
| ixheaacd_mdst_fcoeff_stop_stopstart_left_prev[prev_w_shape]; |
| break; |
| default: |
| mdst_fcoeff_curr = |
| ixheaacd_mdst_fcoeff_stopstart_cur[prev_w_shape][w_shape]; |
| mdst_fcoeff_prev = |
| ixheaacd_mdst_fcoeff_stop_stopstart_left_prev[prev_w_shape]; |
| break; |
| } |
| |
| for (i = 0; i < pstr_sfb_info->max_win_len; i++) { |
| ixheaacd_filter_and_add(dmx_re, pstr_sfb_info->bins_per_sbk, |
| mdst_fcoeff_curr, dmx_im, 1, 1); |
| |
| if (dmx_re_prev) |
| ixheaacd_filter_and_add(dmx_re_prev, pstr_sfb_info->bins_per_sbk, |
| mdst_fcoeff_prev, dmx_im, -1, 1); |
| |
| dmx_re_prev = dmx_re; |
| dmx_re += pstr_sfb_info->bins_per_sbk; |
| dmx_im += pstr_sfb_info->bins_per_sbk; |
| } |
| return err; |
| } |
| |
| static WORD32 ixheaacd_cplx_pred_upmixing( |
| ia_usac_data_struct *usac_data, WORD32 *l_spec, WORD32 *r_spec, |
| ia_usac_tmp_core_coder_struct *pstr_core_coder, WORD32 chn) { |
| ia_sfb_info_struct *pstr_sfb_info = usac_data->pstr_sfb_info[chn]; |
| WORD32 *dmx_re = &usac_data->scratch_buffer[0]; |
| WORD32 *dmx_im = &usac_data->x_ac_dec[0]; |
| |
| WORD32 grp, sfb, grp_len, i = 0, k; |
| WORD32 *dmx_re_prev = usac_data->dmx_re_prev; |
| const WORD32(*alpha_q_re)[SFB_NUM_MAX] = usac_data->alpha_q_re; |
| const WORD32(*alpha_q_im)[SFB_NUM_MAX] = usac_data->alpha_q_im; |
| WORD32 err = 0; |
| |
| UWORD8(*cplx_pred_used)[SFB_NUM_MAX] = usac_data->cplx_pred_used; |
| |
| WORD32 alpha_q_re_temp; |
| WORD32 alpha_q_im_temp; |
| WORD32 factor = 1; |
| |
| if (pstr_core_coder->pred_dir) factor = -1; |
| |
| for (grp = 0; grp < pstr_sfb_info->num_groups; grp++) { |
| for (grp_len = 0; grp_len < pstr_sfb_info->group_len[grp]; grp_len++) { |
| for (sfb = 0; sfb < pstr_sfb_info->sfb_per_sbk; sfb++) { |
| if (cplx_pred_used[grp][sfb] == 1) { |
| memcpy(&dmx_re[i], &l_spec[i], |
| pstr_sfb_info->sfb_width[sfb] * sizeof(WORD32)); |
| i += pstr_sfb_info->sfb_width[sfb]; |
| } |
| |
| else { |
| for (k = 0; k < pstr_sfb_info->sfb_width[sfb]; k++, i++) { |
| dmx_re[i] = (WORD32)( |
| ((WORD64)l_spec[i] + ((WORD64)factor * (WORD64)r_spec[i])) >> |
| 1); |
| } |
| } |
| } |
| } |
| } |
| |
| memset(dmx_im, 0, sizeof(WORD32) * BLOCK_LEN_LONG); |
| |
| if (pstr_core_coder->complex_coef) { |
| WORD32 *p_dmx_re_prev = |
| pstr_core_coder->use_prev_frame ? dmx_re_prev : NULL; |
| err = ixheaacd_estimate_dmx_im(dmx_re, p_dmx_re_prev, dmx_im, pstr_sfb_info, |
| usac_data->window_sequence[chn], |
| usac_data->window_shape[chn], |
| usac_data->window_shape_prev[chn]); |
| if (err == -1) return err; |
| |
| for (grp = 0, i = 0; grp < pstr_sfb_info->num_groups; grp++) { |
| for (grp_len = 0; grp_len < pstr_sfb_info->group_len[grp]; grp_len++) { |
| for (sfb = 0; sfb < pstr_sfb_info->sfb_per_sbk; sfb++) { |
| alpha_q_re_temp = alpha_q_re[grp][sfb] * 1677722; |
| alpha_q_im_temp = alpha_q_im[grp][sfb] * 1677722; |
| if (cplx_pred_used[grp][sfb]) { |
| for (k = 0; k < pstr_sfb_info->sfb_width[sfb]; k++, i++) { |
| WORD32 mid_side = ixheaacd_sub32_sat( |
| ixheaacd_sub32_sat(r_spec[i], |
| (WORD32)((WORD64)ixheaacd_mult32x32in64( |
| alpha_q_re_temp, l_spec[i]) >> |
| 24)), |
| (WORD32)((WORD64)ixheaacd_mult32x32in64(alpha_q_im_temp, |
| dmx_im[i]) >> |
| 24)); |
| r_spec[i] = ixheaacd_sat64_32((WORD64)factor) * |
| (WORD64)(ixheaacd_sub32_sat(l_spec[i], mid_side)); |
| l_spec[i] = ixheaacd_add32_sat(l_spec[i], mid_side); |
| } |
| |
| } else { |
| i += pstr_sfb_info->sfb_width[sfb]; |
| } |
| } |
| } |
| } |
| } else { |
| for (grp = 0, i = 0; grp < pstr_sfb_info->num_groups; grp++) { |
| for (grp_len = 0; grp_len < pstr_sfb_info->group_len[grp]; grp_len++) { |
| for (sfb = 0; sfb < pstr_sfb_info->sfb_per_sbk; sfb++) { |
| alpha_q_re_temp = alpha_q_re[grp][sfb] * 1677722; |
| if (cplx_pred_used[grp][sfb]) { |
| for (k = 0; k < pstr_sfb_info->sfb_width[sfb]; k++, i++) { |
| WORD32 mid_side = ixheaacd_sub32_sat( |
| r_spec[i], (WORD32)((WORD64)ixheaacd_mult32x32in64( |
| alpha_q_re_temp, l_spec[i]) >> |
| 24)); |
| |
| r_spec[i] = ixheaacd_sat64_32((WORD64)factor) * |
| (WORD64)(ixheaacd_sub32_sat(l_spec[i], mid_side)); |
| l_spec[i] = ixheaacd_add32_sat(l_spec[i], mid_side); |
| } |
| |
| } else { |
| i += pstr_sfb_info->sfb_width[sfb]; |
| } |
| } |
| } |
| } |
| } |
| |
| return err; |
| } |
| |
| static VOID ixheaacd_cplx_prev_mdct_dmx(ia_sfb_info_struct *pstr_sfb_info, |
| WORD32 *l_spec, WORD32 *r_spec, |
| WORD32 *dmx_re_prev, WORD32 pred_dir) { |
| WORD32 offs, i; |
| WORD32 factor = 1; |
| if (pred_dir) factor = -1; |
| |
| offs = pstr_sfb_info->samp_per_bk - pstr_sfb_info->bins_per_sbk; |
| |
| for (i = 0; i < pstr_sfb_info->bins_per_sbk; i++) |
| dmx_re_prev[i] = (WORD32)(((WORD64)l_spec[i + offs] + |
| ((WORD64)factor * (WORD64)r_spec[i + offs])) >> |
| 1); |
| } |
| |
| WORD32 ixheaacd_ics_info(ia_usac_data_struct *usac_data, WORD32 chn, |
| UWORD8 *max_sfb, ia_bit_buf_struct *it_bit_buff, |
| WORD32 window_sequence_last |
| |
| ) |
| |
| { |
| WORD32 win; |
| WORD32 mask = 0x40; |
| |
| UWORD8 *scf_group_ptr = usac_data->group_dis[chn]; |
| |
| win = ixheaacd_read_bits_buf(it_bit_buff, 2); |
| |
| win = usac_data->window_sequence[chn] = |
| ixheaacd_win_seq_select(win, window_sequence_last); |
| if (win == -1) return -1; |
| |
| usac_data->pstr_sfb_info[chn] = |
| usac_data->pstr_usac_winmap[usac_data->window_sequence[chn]]; |
| |
| usac_data->window_shape[chn] = (WORD32)ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| if (usac_data->pstr_usac_winmap[win]->islong) { |
| *max_sfb = ixheaacd_read_bits_buf(it_bit_buff, 6); |
| *scf_group_ptr = 1; |
| |
| } else { |
| WORD32 i, scale_factor_grouping; |
| |
| *max_sfb = ixheaacd_read_bits_buf(it_bit_buff, 4); |
| |
| scale_factor_grouping = ixheaacd_read_bits_buf(it_bit_buff, 7); |
| |
| for (i = 1; i < 8; i++) { |
| if (!(scale_factor_grouping & mask)) *scf_group_ptr++ = i; |
| |
| mask = mask >> 1; |
| } |
| *scf_group_ptr++ = i; |
| |
| ixheaacd_calc_grp_offset(usac_data->pstr_usac_winmap[win], |
| &usac_data->group_dis[chn][0]); |
| } |
| |
| if (*max_sfb > usac_data->pstr_sfb_info[chn]->sfb_per_sbk) { |
| *max_sfb = usac_data->pstr_sfb_info[chn]->sfb_per_sbk; |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| WORD32 ixheaacd_core_coder_data(WORD32 id, ia_usac_data_struct *usac_data, |
| WORD32 elem_idx, WORD32 chan_offset, |
| ia_bit_buf_struct *it_bit_buff, |
| WORD32 nr_core_coder_channels) { |
| WORD32 err_code = 0; |
| WORD32 k = 0, ch = 0, chn, left = 0, right = 0; |
| |
| ia_usac_tmp_core_coder_struct str_tmp_core_coder = {0}; |
| ia_usac_tmp_core_coder_struct *pstr_core_coder = &str_tmp_core_coder; |
| ia_td_frame_data_struct td_frame; |
| |
| memset(&td_frame, 0, sizeof(td_frame)); |
| pstr_core_coder->tns_on_lr = 0; |
| pstr_core_coder->pred_dir = 0; |
| if (id != ID_USAC_LFE) { |
| for (ch = 0; ch < nr_core_coder_channels; ch++) |
| pstr_core_coder->core_mode[ch] = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| } else { |
| for (ch = 0; ch < nr_core_coder_channels; ch++) |
| pstr_core_coder->core_mode[ch] = 0; |
| } |
| |
| if (nr_core_coder_channels == 2 && pstr_core_coder->core_mode[0] == 0 && |
| pstr_core_coder->core_mode[1] == 0) { |
| pstr_core_coder->tns_active = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| pstr_core_coder->common_window = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| if (pstr_core_coder->common_window) { |
| left = chan_offset; |
| right = chan_offset + 1; |
| |
| err_code = |
| ixheaacd_ics_info(usac_data, left, &pstr_core_coder->max_sfb[left], |
| it_bit_buff, usac_data->window_sequence_last[left]); |
| |
| if (err_code == -1) return err_code; |
| |
| pstr_core_coder->common_max_sfb = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| if (pstr_core_coder->common_max_sfb == 0) { |
| if (usac_data->window_sequence[left] == EIGHT_SHORT_SEQUENCE) |
| pstr_core_coder->max_sfb[right] = |
| ixheaacd_read_bits_buf(it_bit_buff, 4); |
| else |
| pstr_core_coder->max_sfb[right] = |
| ixheaacd_read_bits_buf(it_bit_buff, 6); |
| } else { |
| pstr_core_coder->max_sfb[right] = pstr_core_coder->max_sfb[left]; |
| } |
| |
| pstr_core_coder->max_sfb_ste = |
| max(pstr_core_coder->max_sfb[left], pstr_core_coder->max_sfb[right]); |
| |
| usac_data->window_sequence[right] = usac_data->window_sequence[left]; |
| usac_data->window_shape[right] = usac_data->window_shape[left]; |
| memcpy(&usac_data->group_dis[right][0], &usac_data->group_dis[left][0], |
| 8); |
| usac_data->pstr_sfb_info[right] = usac_data->pstr_sfb_info[left]; |
| if (pstr_core_coder->max_sfb[right] > |
| usac_data->pstr_sfb_info[right]->sfb_per_sbk) |
| pstr_core_coder->max_sfb[right] = |
| usac_data->pstr_sfb_info[right]->sfb_per_sbk; |
| |
| pstr_core_coder->ms_mask_present[0] = |
| ixheaacd_read_ms_mask(usac_data, pstr_core_coder, it_bit_buff, left); |
| } else { |
| left = chan_offset; |
| right = chan_offset + 1; |
| |
| pstr_core_coder->ms_mask_present[0] = 0; |
| pstr_core_coder->ms_mask_present[1] = 0; |
| |
| for (k = 0; k < SFB_NUM_MAX; k++) { |
| usac_data->alpha_q_re_prev[k] = 0; |
| usac_data->alpha_q_im_prev[k] = 0; |
| } |
| } |
| |
| if (usac_data->tw_mdct[elem_idx] == 1) { |
| pstr_core_coder->common_tw = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| if (pstr_core_coder->common_tw == 1) { |
| usac_data->tw_data_present[left] = |
| ixheaacd_read_bits_buf(it_bit_buff, 1); |
| usac_data->tw_data_present[right] = usac_data->tw_data_present[left]; |
| if (usac_data->tw_data_present[left]) { |
| for (k = 0; k < NUM_TW_NODES; k++) { |
| usac_data->tw_ratio[left][k] = |
| ixheaacd_read_bits_buf(it_bit_buff, 3); |
| usac_data->tw_ratio[right][k] = usac_data->tw_ratio[left][k]; |
| } |
| } |
| } |
| } |
| |
| if (pstr_core_coder->tns_active) { |
| if (pstr_core_coder->common_window) { |
| pstr_core_coder->common_tns = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| } else { |
| pstr_core_coder->common_tns = 0; |
| } |
| |
| pstr_core_coder->tns_on_lr = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| if (pstr_core_coder->common_tns) { |
| ixheaacd_read_tns_u(usac_data->pstr_sfb_info[0], |
| &usac_data->pstr_tns[left][0], it_bit_buff); |
| memcpy(&usac_data->pstr_tns[right][0], &usac_data->pstr_tns[left][0], |
| sizeof(ia_tns_frame_info_struct)); |
| |
| pstr_core_coder->tns_data_present[0] = 2; |
| pstr_core_coder->tns_data_present[1] = 2; |
| } else { |
| pstr_core_coder->tns_present_both = |
| ixheaacd_read_bits_buf(it_bit_buff, 1); |
| |
| if (pstr_core_coder->tns_present_both) { |
| pstr_core_coder->tns_data_present[0] = 1; |
| pstr_core_coder->tns_data_present[1] = 1; |
| } else { |
| pstr_core_coder->tns_data_present[1] = |
| ixheaacd_read_bits_buf(it_bit_buff, 1); |
| pstr_core_coder->tns_data_present[0] = |
| 1 - pstr_core_coder->tns_data_present[1]; |
| } |
| } |
| } else { |
| pstr_core_coder->common_tns = 0; |
| pstr_core_coder->tns_data_present[0] = 0; |
| pstr_core_coder->tns_data_present[1] = 0; |
| } |
| |
| } else { |
| pstr_core_coder->common_window = 0; |
| pstr_core_coder->common_tw = 0; |
| left = chan_offset; |
| right = chan_offset; |
| if (nr_core_coder_channels == 2) right = chan_offset + 1; |
| } |
| |
| for (ch = 0, chn = chan_offset; ch < nr_core_coder_channels; ch++, chn++) { |
| if (pstr_core_coder->core_mode[ch] == 1) { |
| err_code = |
| ixheaacd_tw_buff_update(usac_data, chn, usac_data->str_tddec[chn]); |
| if (err_code == -1) return err_code; |
| |
| if (!usac_data->td_frame_prev[chn]) { |
| ixheaacd_fix2flt_data(usac_data, usac_data->str_tddec[chn], chn); |
| } |
| |
| for (k = 0; k < usac_data->ccfl; k++) { |
| usac_data->time_sample_vector[chn][k] = |
| (FLOAT32)((FLOAT32)usac_data->output_data_ptr[chn][k] * |
| (FLOAT32)(ONE_BY_TWO_POW_15)); |
| } |
| usac_data->present_chan = chn; |
| err_code = |
| ixheaacd_lpd_channel_stream(usac_data, &td_frame, it_bit_buff, |
| usac_data->time_sample_vector[chn]); |
| if (err_code == -1) return err_code; |
| |
| for (k = 0; k < usac_data->ccfl; k++) { |
| usac_data->output_data_ptr[chn][k] = (WORD32)( |
| usac_data->time_sample_vector[chn][k] * (FLOAT32)((WORD64)1 << 15)); |
| } |
| |
| usac_data->window_shape[chn] = WIN_SEL_0; |
| |
| ixheaacd_td_frm_dec(usac_data, chn, td_frame.mod[0]); |
| |
| for (k = 0; k < usac_data->ccfl; k++) { |
| usac_data->time_sample_vector[chn][k] = |
| (FLOAT32)((FLOAT32)usac_data->output_data_ptr[chn][k] * |
| (FLOAT32)(ONE_BY_TWO_POW_15)); |
| } |
| |
| usac_data->window_shape_prev[chn] = usac_data->window_shape[chn]; |
| usac_data->window_sequence_last[chn] = EIGHT_SHORT_SEQUENCE; |
| |
| } else { |
| memset(usac_data->coef_fix[chn], 0, |
| LN2 * sizeof(*usac_data->coef_fix[0])); |
| |
| if (usac_data->str_tddec[chn] && usac_data->td_frame_prev[chn]) { |
| ixheaacd_lpd_dec_update(usac_data->str_tddec[chn], usac_data, chn); |
| } |
| |
| if (id != ID_USAC_LFE) { |
| if ((nr_core_coder_channels == 1) || |
| (pstr_core_coder->core_mode[0] != pstr_core_coder->core_mode[1])) |
| pstr_core_coder->tns_data_present[ch] = |
| ixheaacd_read_bits_buf(it_bit_buff, 1); |
| } |
| |
| err_code = ixheaacd_fd_channel_stream( |
| usac_data, pstr_core_coder, &pstr_core_coder->max_sfb[ch], |
| usac_data->window_sequence_last[chn], chn, |
| usac_data->noise_filling_config[elem_idx], ch, it_bit_buff); |
| if (err_code == -1) return err_code; |
| } |
| } |
| |
| if (pstr_core_coder->core_mode[0] == CORE_MODE_FD && |
| pstr_core_coder->core_mode[1] == CORE_MODE_FD && |
| nr_core_coder_channels == 2) { |
| ixheaacd_cplx_prev_mdct_dmx( |
| usac_data->pstr_sfb_info[left], usac_data->coef_save[left], |
| usac_data->coef_save[right], usac_data->dmx_re_prev, |
| pstr_core_coder->pred_dir); |
| } |
| |
| if (pstr_core_coder->tns_on_lr == 0 && (id != ID_USAC_LFE)) { |
| for (ch = 0, chn = left; chn <= right; ch++, chn++) { |
| if (pstr_core_coder->core_mode[ch] == CORE_MODE_FD) { |
| err_code = ixheaacd_tns_apply( |
| usac_data, usac_data->coef_fix[chn], pstr_core_coder->max_sfb[ch], |
| usac_data->pstr_sfb_info[chn], usac_data->pstr_tns[chn]); |
| if (err_code) return err_code; |
| } |
| } |
| } |
| |
| if (nr_core_coder_channels == 2 && pstr_core_coder->core_mode[0] == 0 && |
| pstr_core_coder->core_mode[1] == 0) { |
| if (pstr_core_coder->ms_mask_present[0] == 3) { |
| err_code = ixheaacd_cplx_pred_upmixing( |
| usac_data, usac_data->coef_fix[left], usac_data->coef_fix[right], |
| pstr_core_coder, left); |
| if (err_code == -1) return err_code; |
| |
| } else if (pstr_core_coder->ms_mask_present[0] > 0) { |
| ixheaacd_ms_stereo( |
| usac_data, usac_data->coef_fix[right], usac_data->coef_fix[left], |
| left, pstr_core_coder->max_sfb[right] > pstr_core_coder->max_sfb[left] |
| ? pstr_core_coder->max_sfb[right] |
| : pstr_core_coder->max_sfb[left]); |
| } |
| |
| if (pstr_core_coder->tns_on_lr) { |
| for (ch = 0, chn = left; chn <= right; ch++, chn++) { |
| if (pstr_core_coder->core_mode[ch] == CORE_MODE_FD) { |
| err_code = ixheaacd_tns_apply( |
| usac_data, usac_data->coef_fix[chn], pstr_core_coder->max_sfb[ch], |
| usac_data->pstr_sfb_info[chn], usac_data->pstr_tns[chn]); |
| if (err_code) return err_code; |
| } |
| } |
| } |
| |
| ixheaacd_usac_cplx_save_prev( |
| usac_data->pstr_sfb_info[left], usac_data->coef_fix[left], |
| usac_data->coef_fix[right], usac_data->coef_save[left], |
| usac_data->coef_save[right]); |
| } |
| |
| for (ch = left; ch <= right; ch++) { |
| if (pstr_core_coder->core_mode[ch] == CORE_MODE_FD) { |
| if (usac_data->tw_mdct[elem_idx]) { |
| err_code = -1; |
| return err_code; |
| |
| } else { |
| err_code = ixheaacd_fd_frm_dec(usac_data, ch); |
| if (err_code == -1) return err_code; |
| |
| for (k = 0; k < usac_data->ccfl; k++) { |
| usac_data->time_sample_vector[ch][k] = |
| (FLOAT32)((FLOAT32)usac_data->output_data_ptr[ch][k] * |
| (FLOAT32)(ONE_BY_TWO_POW_15)); |
| } |
| } |
| |
| usac_data->window_shape_prev[ch] = usac_data->window_shape[ch]; |
| usac_data->window_sequence_last[ch] = usac_data->window_sequence[ch]; |
| } |
| } |
| |
| for (ch = 0, chn = left; chn <= right; chn++, ch++) |
| usac_data->td_frame_prev[chn] = pstr_core_coder->core_mode[ch]; |
| |
| return 0; |
| } |
