/****************************************************************************** * * * 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 #include #include "ixheaac_type_def.h" #include "ixheaac_constants.h" #include "ixheaac_basic_ops32.h" #include "ixheaac_basic_ops40.h" #include "ixheaacd_bitbuffer.h" #include "ixheaacd_defines.h" #include "ixheaac_sbr_const.h" #include "ixheaacd_memory_standards.h" #include "ixheaacd_sbrdecsettings.h" #include "ixheaacd_env_extr_part.h" #include "ixheaacd_aac_rom.h" #include "ixheaacd_common_rom.h" #include "ixheaacd_sbr_rom.h" #include "ixheaacd_pulsedata.h" #include "ixheaacd_pns.h" #include "ixheaacd_sbr_common.h" #include "ixheaacd_drc_data_struct.h" #include "ixheaacd_cnst.h" #include "ixheaacd_ec_defines.h" #include "ixheaacd_ec_struct_def.h" #include "ixheaacd_error_codes.h" #include "ixheaacd_channelinfo.h" #include "ixheaacd_sbrdecoder.h" #include "ixheaacd_audioobjtypes.h" #include "ixheaacd_latmdemux.h" #include "ixheaacd_aacdec.h" #include "ixheaacd_hybrid.h" #include "ixheaacd_sbr_scale.h" #include "ixheaacd_ps_dec.h" #include "ixheaacd_lpp_tran.h" #include "ixheaacd_env_extr.h" #include "ixheaacd_qmf_dec.h" #include "ixheaacd_env_calc.h" #include "ixheaacd_pvc_dec.h" #include "ixheaacd_sbr_dec.h" #include "ixheaacd_mps_polyphase.h" #include "ixheaacd_config.h" #include "ixheaacd_mps_macro_def.h" #include "ixheaacd_mps_struct_def.h" #include "ixheaacd_mps_res_rom.h" #include "ixheaacd_mps_aac_struct.h" #include "ixheaacd_mps_dec.h" #include "ixheaacd_mps_interface.h" #include "ixheaacd_struct_def.h" #include "ixheaacd_mps_process.h" #include "ixheaacd_mps_bitdec.h" #include "ixheaacd_mps_smoothing.h" #include "ixheaacd_mps_tp_process.h" #include "ixheaacd_mps_reshape_bb_env.h" #include "ixheaacd_mps_blind.h" #include "ixheaacd_mps_m1m2.h" #include "ixheaacd_mps_basic_op.h" #include "ixheaacd_mps_decor.h" #include "ixheaacd_mps_hybfilter.h" #include "ixheaacd_mps_nlc_dec.h" #include "ixheaacd_mps_huff_tab.h" extern const ia_huff_pt0_nodes_struct ixheaacd_huff_part0_nodes; extern const ia_huff_ipd_nodes_struct ixheaacd_huff_ipd_nodes; extern const ia_huff_lav_nodes_struct ixheaacd_huff_lav_idx_nodes; extern const ia_huff_pt0_nodes_struct ixheaacd_huff_pilot_nodes; extern const ia_huff_cld_nodes_struct ixheaacd_huff_cld_nodes; extern const ia_huff_icc_nodes_struct ixheaacd_huff_icc_nodes; extern const ia_huff_cpc_nodes_struct ixheaacd_huff_cpc_nodes; extern const ia_huff_res_nodes_struct ixheaacd_huff_reshape_nodes; WORD32 ixheaacd_mps_create(ia_mps_dec_state_struct* self, WORD32 bs_frame_len, WORD32 residual_coding, ia_usac_dec_mps_config_struct* mps212_config) { WORD32 num_ch; WORD32 err_code = 0; ia_mps_bs_frame bs_frame; self->num_parameter_sets = 1; self->qmf_band_count = 64; self->res_ch_count = 0; if (mps212_config) { self->config = mps212_config; self->frame_length = bs_frame_len; self->in_ch_count = 1; self->out_ch_count = 2; self->residual_coding = residual_coding; if (self->residual_coding) { self->bs_residual_present = 1; self->bs_residual_bands = mps212_config->bs_residual_bands; if (self->config->bs_phase_coding) { self->config->bs_phase_coding = 2; } } } err_code = ixheaacd_mps_header_decode(self); if (err_code != IA_NO_ERROR) { self->mps_init_done = 0; return err_code; } if ((self->residual_coding) && (self->res_bands > 0)) self->res_ch_count++; ixheaacd_mps_env_init(self); self->resolution = self->qmf_band_count; for (num_ch = 0; num_ch < self->out_ch_count; num_ch++) { ixheaacd_mps_synt_init(self->qmf_filt_state[num_ch]); } ixheaacd_mps_qmf_hybrid_analysis_init(&self->hyb_filt_state[0]); if ((self->residual_coding) && (self->res_bands > 0)) ixheaacd_mps_qmf_hybrid_analysis_init(&self->hyb_filt_state[1]); err_code = ixheaacd_mps_decor_init(&(self->mps_decor), self->hyb_band_count_max, self->config->bs_decorr_config, self->object_type); if (err_code != IA_NO_ERROR) { self->mps_init_done = 0; return err_code; } ixheaacd_mps_init_pre_and_post_matrix(self); self->parse_nxt_frame = 1; bs_frame = self->bs_frame; memset(bs_frame.cld_idx_pre, 0, MAX_PARAMETER_BANDS * sizeof(WORD32)); memset(bs_frame.icc_idx_pre, 0, MAX_PARAMETER_BANDS * sizeof(WORD32)); memset(bs_frame.cmp_cld_idx_prev, 0, MAX_PARAMETER_BANDS * sizeof(WORD32)); memset(bs_frame.cmp_icc_idx_prev, 0, MAX_PARAMETER_BANDS * sizeof(WORD32)); self->subband_var.init_flag = 0; self->subband_var.update_old_ener = 0; self->subband_var.nrg_dir = 0; memset(self->subband_var.nrg_diff, 0, 2 * sizeof(FLOAT32)); memset(self->opd_smooth.smooth_l_phase, 0, MAX_PARAMETER_BANDS * sizeof(WORD32)); memset(self->opd_smooth.smooth_r_phase, 0, MAX_PARAMETER_BANDS * sizeof(WORD32)); self->mps_init_done = 1; return 0; } static const FLOAT32 ixheaacd_tsd_mul_re[] = { 1.0f, 0.707106781186548f, 0.0f, -0.707106781186548f, -1.0f, -0.707106781186548f, 0.0f, 0.707106781186548f}; static const FLOAT32 ixheaacd_tsd_mul_im[] = { 0.0f, 0.707106781186548f, 1.0f, 0.707106781186548f, 0.0f, -0.707106781186548f, -1.0f, -0.707106781186548f}; VOID ixheaacd_mps_qmf_hyb_analysis(ia_mps_dec_state_struct* self) { if (self->object_type == AOT_ER_AAC_ELD || self->object_type == AOT_ER_AAC_LD) { WORD32 k, n; for (n = 0; n < self->time_slots; n++) { for (k = 0; k < self->qmf_band_count; k++) { self->hyb_in[0][k][n].re = self->qmf_in[0][n][k].re; self->hyb_in[0][k][n].im = self->qmf_in[0][n][k].im; } } } else { ixheaacd_mps_qmf_hybrid_analysis(&self->hyb_filt_state[0], self->qmf_in[0], self->qmf_band_count, self->time_slots, self->hyb_in[0]); } if ((self->residual_coding) && (self->res_bands > 0)) { ixheaacd_mps_qmf_hybrid_analysis(&self->hyb_filt_state[self->in_ch_count], self->qmf_in[1], self->band_count[1], self->time_slots, self->hyb_res); } } VOID ixheaacd_mps_qmf_hyb_synthesis(ia_mps_dec_state_struct* self) { WORD32 ch; if (self->object_type == AOT_ER_AAC_ELD || self->object_type == AOT_ER_AAC_LD) { WORD32 k, n; for (ch = 0; ch < self->out_ch_count; ch++) { for (n = 0; n < self->time_slots; n++) { for (k = 0; k < self->qmf_band_count; k++) { self->qmf_out_dir[ch][n][k].re = self->hyb_dir_out[ch][n][k].re; self->qmf_out_dir[ch][n][k].im = self->hyb_dir_out[ch][n][k].im; } } } } else { for (ch = 0; ch < self->out_ch_count; ch++) { ixheaacd_mps_qmf_hybrid_synthesis(self->hyb_dir_out[ch], self->qmf_band_count, self->time_slots, self->qmf_out_dir[ch]); } } } VOID ixheaacd_mps_decor(ia_mps_dec_state_struct* self) { WORD32 k, sb_sample, idx; ia_cmplx_flt_struct(*scratch)[MAX_HYBRID_BANDS_MPS]; ia_cmplx_flt_struct coeff; WORD32 band_start = 7; scratch = self->scratch; for (k = self->dir_sig_count; k < self->dir_sig_count + self->decor_sig_count; k++) { if (self->bs_tsd_enable) { for (sb_sample = 0; sb_sample < self->time_slots; sb_sample++) { if (self->bs_tsd_sep_data[sb_sample]) { for (idx = band_start; idx < self->mps_decor.num_bins; idx++) { scratch[sb_sample][idx].re = self->v[k][sb_sample][idx].re; scratch[sb_sample][idx].im = self->v[k][sb_sample][idx].im; self->v[k][sb_sample][idx].re = 0.0f; self->v[k][sb_sample][idx].im = 0.0f; } } } } ixheaacd_mps_decor_apply(&self->mps_decor, self->v[k], self->w_diff[k], self->time_slots, NO_RES_BANDS, self->ldmps_config.ldmps_present_flag); if (self->bs_tsd_enable) { for (sb_sample = 0; sb_sample < self->time_slots; sb_sample++) { if (self->bs_tsd_sep_data[sb_sample]) { coeff.re = ixheaacd_tsd_mul_re[self->bs_tsd_tr_phase_data[sb_sample]]; coeff.im = ixheaacd_tsd_mul_im[self->bs_tsd_tr_phase_data[sb_sample]]; for (idx = band_start; idx < self->mps_decor.num_bins; idx++) { self->w_diff[k][sb_sample][idx].re += coeff.re * scratch[sb_sample][idx].re - coeff.im * scratch[sb_sample][idx].im; self->w_diff[k][sb_sample][idx].im += coeff.im * scratch[sb_sample][idx].re + coeff.re * scratch[sb_sample][idx].im; } } } } } } VOID ixheaacd_mps_mix_res_decor(ia_mps_dec_state_struct* self) { WORD32 ts, qs, row, indx; for (ts = 0; ts < self->time_slots; ts++) { for (qs = 0; qs < self->hyb_band_count_max; qs++) { indx = self->hyb_band_to_processing_band_table[qs]; for (row = 0; row < self->dir_sig_count; row++) { self->w_dir[row][ts][qs].re = self->v[row][ts][qs].re; self->w_dir[row][ts][qs].im = self->v[row][ts][qs].im; } for (row = self->dir_sig_count; row < (self->dir_sig_count + self->decor_sig_count); row++) { if (indx < self->res_bands) { self->w_dir[row][ts][qs].re = self->hyb_res[qs][ts].re; self->w_dir[row][ts][qs].im = self->hyb_res[qs][ts].im; } else { self->w_dir[row][ts][qs].re = 0.0f; self->w_dir[row][ts][qs].im = 0.0f; } } for (row = 0; row < self->dir_sig_count; row++) { self->w_diff[row][ts][qs].re = 0.0f; self->w_diff[row][ts][qs].im = 0.0f; } for (row = self->dir_sig_count; row < (self->dir_sig_count + self->decor_sig_count); row++) { if (indx < self->res_bands) { self->w_diff[row][ts][qs].re = 0.0f; self->w_diff[row][ts][qs].im = 0.0f; } } } } } VOID ixheaacd_mps_mix_res_decor_residual_band(ia_mps_dec_state_struct* self) { WORD32 ts, qs, indx; for (qs = 0; qs < self->hyb_band_count_max; qs++) { indx = self->hyb_band_to_processing_band_table[qs]; if (indx >= self->res_bands) { if (qs < self->hyb_band_count[1]) { for (ts = 0; ts < self->time_slots; ts++) { self->w_dir[1][ts][qs].re = 0.0f; self->w_dir[1][ts][qs].im = 0.0f; } } } else { for (ts = 0; ts < self->time_slots; ts++) { self->w_diff[1][ts][qs].re = 0.0f; self->w_diff[1][ts][qs].im = 0.0f; } } } } VOID ixheaacd_mps_create_w(ia_mps_dec_state_struct* self) { ixheaacd_mps_decor(self); ixheaacd_mps_mix_res_decor(self); } VOID ixheaacd_mps_qmf_hyb_analysis_no_pre_mix(ia_mps_dec_state_struct* self) { ixheaacd_mps_qmf_hybrid_analysis_no_pre_mix( &self->hyb_filt_state[0], self->qmf_in[0], self->band_count[0], self->time_slots, self->w_dir[0]); if (self->res_bands) { ixheaacd_mps_qmf_hybrid_analysis_no_pre_mix( &self->hyb_filt_state[1], self->qmf_in[1], self->band_count[1], self->time_slots, self->w_dir[1]); if (self->res_bands != 28) { ixheaacd_mps_decor_apply(&self->mps_decor, self->w_dir[0], self->w_diff[1], self->time_slots, self->res_bands, self->ldmps_config.ldmps_present_flag); ixheaacd_mps_mix_res_decor_residual_band(self); } } else { ixheaacd_mps_decor_apply(&self->mps_decor, self->w_dir[0], self->w_diff[1], self->time_slots, NO_RES_BANDS, self->ldmps_config.ldmps_present_flag); } } WORD32 ixheaacd_mps_apply(ia_mps_dec_state_struct* self, FLOAT32** input_buffer[4], FLOAT32 (*output_buffer)[4096]) { WORD32 ch, ts, qs; WORD32 time_slots = self->time_slots; WORD32 in_ch_count = self->in_ch_count + self->res_ch_count; WORD32 err = 0; self->hyb_band_count[0] = self->band_count[0] - QMF_BANDS_TO_HYBRID + 10; self->hyb_band_count[1] = self->band_count[1] - QMF_BANDS_TO_HYBRID + 10; self->hyb_band_count_max = max(self->hyb_band_count[0], self->hyb_band_count[1]); self->mps_decor.decor_nrg_smooth.num_bins = self->hyb_band_count_max; self->mps_decor.num_bins = self->hyb_band_count_max; self->output_buffer = output_buffer; err = ixheaacd_mps_frame_decode(self); if (err != IA_NO_ERROR) return err; ixheaacd_pre_and_mix_matrix_calculation(self); ixheaacd_mps_pre_matrix_mix_matrix_smoothing(self); for (ch = 0; ch < in_ch_count; ch++) { for (ts = 0; ts < time_slots; ts++) { for (qs = 0; qs < self->band_count[ch]; qs++) { self->qmf_in[ch][qs][ts].re = self->input_gain * input_buffer[2 * ch][ts][qs]; self->qmf_in[ch][qs][ts].im = self->input_gain * input_buffer[2 * ch + 1][ts][qs]; } } } if (!(self->pre_mix_req | self->bs_tsd_enable)) { ixheaacd_mps_qmf_hyb_analysis_no_pre_mix(self); } else { ixheaacd_mps_qmf_hyb_analysis(self); ixheaacd_mps_apply_pre_matrix(self); ixheaacd_mps_create_w(self); } if ((!(self->res_bands | self->pre_mix_req)) && (self->config->bs_phase_coding == 0)) { ixheaacd_mps_apply_mix_matrix_type1(self); } else if (self->pre_mix_req) { ixheaacd_mps_apply_mix_matrix_type2(self); } else { ixheaacd_mps_apply_mix_matrix_type3(self); } if (self->config->bs_temp_shape_config == 2) { ixheaacd_mps_time_env_shaping(self); } err = ixheaacd_mps_temp_process(self); if (err) return err; self->parse_nxt_frame = 1; self->pre_mix_req = 0; return 0; } static VOID ixheaacd_mps_pcm_decode(ia_bit_buf_struct *it_bit_buff, WORD32* out_data_1, WORD32* out_data_2, WORD32 ixheaacd_drc_offset, WORD32 num_val, WORD32 num_levels) { WORD32 i = 0, j = 0, idx = 0; WORD32 max_grp_len = 0, grp_len = 0, next_val = 0, grp_val = 0; UWORD32 data = 0; FLOAT32 ld_nlev = 0.f; WORD32 pcm_chunk_size[7] = {0}; switch (num_levels) { case 3: max_grp_len = 5; break; case 7: max_grp_len = 6; break; case 11: max_grp_len = 2; break; case 13: max_grp_len = 4; break; case 19: max_grp_len = 4; break; case 25: max_grp_len = 3; break; case 51: max_grp_len = 4; break; case 4: case 8: case 15: case 16: case 26: case 31: max_grp_len = 1; break; default: return; } ld_nlev = (FLOAT32)(log((FLOAT32)num_levels) / log(2.f)); for (i = 1; i <= max_grp_len; i++) { pcm_chunk_size[i] = (WORD32)ceil((FLOAT32)(i)*ld_nlev); } for (i = 0; i < num_val; i += max_grp_len) { grp_len = min(max_grp_len, num_val - i); data = ixheaacd_read_bits_buf(it_bit_buff, pcm_chunk_size[grp_len]); grp_val = data; for (j = 0; j < grp_len; j++) { idx = i + (grp_len - j - 1); next_val = grp_val % num_levels; if (out_data_2 == NULL) { out_data_1[idx] = next_val - ixheaacd_drc_offset; } else if (out_data_1 == NULL) { out_data_2[idx] = next_val - ixheaacd_drc_offset; } else { if (idx % 2) { out_data_2[idx / 2] = next_val - ixheaacd_drc_offset; } else { out_data_1[idx / 2] = next_val - ixheaacd_drc_offset; } } grp_val = (grp_val - next_val) / num_levels; } } return; } static VOID ixheaacd_mps_huff_read(ia_bit_buf_struct *it_bit_buff, const WORD32 (*node_tab)[][2], WORD32* out_data) { WORD32 node = 0; UWORD32 next_bit = 0; do { next_bit = ixheaacd_read_bits_buf(it_bit_buff, 1); node = (*node_tab)[node][next_bit]; } while (node > 0); *out_data = node; return; } static VOID ixheaacd_mps_huff_read_2d(ia_bit_buf_struct *it_bit_buff, const WORD32 (*node_tab)[][2], WORD32 out_data[2], WORD32* escape) { WORD32 huff_2d_8bit = 0; WORD32 node = 0; ixheaacd_mps_huff_read(it_bit_buff, node_tab, &node); *escape = (node == 0); if (*escape) { out_data[0] = 0; out_data[1] = 1; } else { huff_2d_8bit = -(node + 1); out_data[0] = huff_2d_8bit >> 4; out_data[1] = huff_2d_8bit & 0xf; } return; } static VOID ixheaacd_mps_sym_restore(ia_bit_buf_struct *it_bit_buff, WORD32 lav, WORD32 data[2]) { WORD32 tmp = 0; UWORD32 sym_bit = 0; WORD32 sum_val = data[0] + data[1]; WORD32 diff_val = data[0] - data[1]; if (sum_val > lav) { data[0] = -sum_val + (2 * lav + 1); data[1] = -diff_val; } else { data[0] = sum_val; data[1] = diff_val; } if (data[0] + data[1] != 0) { sym_bit = ixheaacd_read_bits_buf(it_bit_buff, 1); if (sym_bit) { data[0] = -data[0]; data[1] = -data[1]; } } if (data[0] - data[1] != 0) { sym_bit = ixheaacd_read_bits_buf(it_bit_buff, 1); if (sym_bit) { tmp = data[0]; data[0] = data[1]; data[1] = tmp; } } return; } static VOID ixheaacd_mps_sym_restoreipd(ia_bit_buf_struct *it_bit_buff, WORD32 lav, WORD32 data[2]) { WORD32 tmp = 0; UWORD32 sym_bit = 0; WORD32 sum_val = data[0] + data[1]; WORD32 diff_val = data[0] - data[1]; if (sum_val > lav) { data[0] = -sum_val + (2 * lav + 1); data[1] = -diff_val; } else { data[0] = sum_val; data[1] = diff_val; } if (data[0] - data[1] != 0) { sym_bit = ixheaacd_read_bits_buf(it_bit_buff, 1); if (sym_bit) { tmp = data[0]; data[0] = data[1]; data[1] = tmp; } } return; } static VOID ixheaacd_mps_huff_dec_pilot(ia_bit_buf_struct *it_bit_buff, const WORD32 (*node_tab)[][2], WORD32* pilot_data) { WORD32 node = 0; ixheaacd_mps_huff_read(it_bit_buff, node_tab, &node); *pilot_data = -(node + 1); return; } static VOID ixheaacd_mps_huff_dec_cld_1d( ia_bit_buf_struct *it_bit_buff, const ia_huff_cld_node_1d_struct* huff_nodes, WORD32* out_data, WORD32 num_val, WORD32 p0_flag) { WORD32 i = 0, node = 0, ixheaacd_drc_offset = 0; WORD32 od = 0, od_sign = 0; UWORD32 data = 0; if (p0_flag) { ixheaacd_mps_huff_read(it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.cld, &node); out_data[0] = -(node + 1); ixheaacd_drc_offset = 1; } for (i = ixheaacd_drc_offset; i < num_val; i++) { ixheaacd_mps_huff_read(it_bit_buff, (ia_huff_node_struct)&huff_nodes->node_tab, &node); od = -(node + 1); if (od != 0) { data = ixheaacd_read_bits_buf(it_bit_buff, 1); od_sign = data; if (od_sign) od = -od; } out_data[i] = od; } return; } static VOID ixheaacd_mps_huff_dec_ipd_1d( ia_bit_buf_struct *it_bit_buff, const ia_huff_ipd_node_1d_struct* huff_nodes, WORD32* out_data, WORD32 num_val, WORD32 p0_flag) { WORD32 i = 0, node = 0, ixheaacd_drc_offset = 0; WORD32 od = 0; if (p0_flag) { ixheaacd_mps_huff_read( it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_ipd_nodes.hp0.node_tab, &node); out_data[0] = -(node + 1); ixheaacd_drc_offset = 1; } for (i = ixheaacd_drc_offset; i < num_val; i++) { ixheaacd_mps_huff_read(it_bit_buff, (ia_huff_node_struct)&huff_nodes->node_tab, &node); od = -(node + 1); out_data[i] = od; } return; } static VOID ixheaacd_mps_huff_dec_icc_1d( ia_bit_buf_struct *it_bit_buff, const ia_huff_icc_node_1d_struct* huff_nodes, WORD32* out_data, WORD32 num_val, WORD32 p0_flag) { WORD32 i = 0, node = 0, ixheaacd_drc_offset = 0; WORD32 od = 0, od_sign = 0; UWORD32 data = 0; if (p0_flag) { ixheaacd_mps_huff_read(it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.icc, &node); out_data[0] = -(node + 1); ixheaacd_drc_offset = 1; } for (i = ixheaacd_drc_offset; i < num_val; i++) { ixheaacd_mps_huff_read(it_bit_buff, (ia_huff_node_struct)&huff_nodes->node_tab, &node); od = -(node + 1); if (od != 0) { data = ixheaacd_read_bits_buf(it_bit_buff, 1); od_sign = data; if (od_sign) od = -od; } out_data[i] = od; } return; } static VOID ia_mps_dec_huff_dec_cpc_1d( const ia_huff_cpc_node_1d_struct *huff_nodes, WORD32 *out_data, WORD32 num_val, WORD32 p0_flag, ia_bit_buf_struct *h_bit_buf) { WORD32 i = 0, node = 0, offset = 0; WORD32 od = 0, od_sign = 0; WORD32 data = 0; if (p0_flag) { ixheaacd_mps_huff_read( h_bit_buf, (ia_huff_node_struct) & (ixheaacd_huff_part0_nodes.cpc), &node); out_data[0] = -(node + 1); offset = 1; } for (i = offset; i < num_val; i++) { ixheaacd_mps_huff_read(h_bit_buf, (ia_huff_node_struct)&huff_nodes->node_tab, &node); od = -(node + 1); if (od != 0) { data = ixheaacd_read_bits_buf(h_bit_buf, 1); od_sign = data; if (od_sign) od = -od; } out_data[i] = od; } } static VOID ixheaacd_mps_huff_dec_cld_2d( ia_bit_buf_struct *it_bit_buff, const ia_huff_cld_node_2d_struct* huff_nodes, WORD32 out_data[][2], WORD32 num_val, WORD32 ch_fac, WORD32* p0_data[2]) { WORD32 i = 0, lav = 0, escape = 0, esc_contrl = 0; WORD32 node = 0; UWORD32 data = 0; WORD32 esc_data[MAXBANDS][2] = {{0}}; WORD32 esc_idx[MAXBANDS] = {0}; ixheaacd_mps_huff_read( it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_lav_idx_nodes.node_tab, &node); data = -(node + 1); lav = 2 * data + 3; if (p0_data[0] != NULL) { ixheaacd_mps_huff_read(it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.cld, &node); *p0_data[0] = -(node + 1); } if (p0_data[1] != NULL) { ixheaacd_mps_huff_read(it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.cld, &node); *p0_data[1] = -(node + 1); } for (i = 0; i < num_val; i += ch_fac) { switch (lav) { case 3: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav3, out_data[i], &escape); break; case 5: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav5, out_data[i], &escape); break; case 7: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav7, out_data[i], &escape); break; case 9: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav9, out_data[i], &escape); break; default: break; } if (escape) { esc_idx[esc_contrl++] = i; } else { ixheaacd_mps_sym_restore(it_bit_buff, lav, out_data[i]); } } if (esc_contrl > 0) { ixheaacd_mps_pcm_decode(it_bit_buff, esc_data[0], esc_data[1], 0, 2 * esc_contrl, (2 * lav + 1)); for (i = 0; i < esc_contrl; i++) { out_data[esc_idx[i]][0] = esc_data[0][i] - lav; out_data[esc_idx[i]][1] = esc_data[1][i] - lav; } } return; } static VOID ixheaacd_mps_huff_dec_icc_2d( ia_bit_buf_struct *it_bit_buff, const ia_huff_icc_node_2d_struct* huff_nodes, WORD32 out_data[][2], WORD32 num_val, WORD32 ch_fac, WORD32* p0_data[2]) { WORD32 i = 0, lav = 0, escape = 0, esc_contrl = 0; WORD32 node = 0; UWORD32 data = 0; WORD32 esc_data[2][MAXBANDS] = {{0}}; WORD32 esc_idx[MAXBANDS] = {0}; ixheaacd_mps_huff_read( it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_lav_idx_nodes.node_tab, &node); data = -(node + 1); lav = 2 * data + 1; if (p0_data[0] != NULL) { ixheaacd_mps_huff_read(it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.icc, &node); *p0_data[0] = -(node + 1); } if (p0_data[1] != NULL) { ixheaacd_mps_huff_read(it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.icc, &node); *p0_data[1] = -(node + 1); } for (i = 0; i < num_val; i += ch_fac) { switch (lav) { case 1: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav1, out_data[i], &escape); break; case 3: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav3, out_data[i], &escape); break; case 5: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav5, out_data[i], &escape); break; case 7: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav7, out_data[i], &escape); break; } if (escape) { esc_idx[esc_contrl++] = i; } else { ixheaacd_mps_sym_restore(it_bit_buff, lav, out_data[i]); } } if (esc_contrl > 0) { ixheaacd_mps_pcm_decode(it_bit_buff, esc_data[0], esc_data[1], 0, 2 * esc_contrl, (2 * lav + 1)); for (i = 0; i < esc_contrl; i++) { out_data[esc_idx[i]][0] = esc_data[0][i] - lav; out_data[esc_idx[i]][1] = esc_data[1][i] - lav; } } return; } static VOID ixheaacd_mps_huff_dec_ipd_2d( ia_bit_buf_struct *it_bit_buff, const ia_huff_ipd_node_2d_struct* huff_nodes, WORD32 out_data[][2], WORD32 num_val, WORD32 ch_fac, WORD32* p0_data[2]) { WORD32 i = 0, lav = 0, escape = 0, esc_contrl = 0; WORD32 node = 0; UWORD32 data = 0; WORD32 esc_data[2][MAXBANDS] = {{0}}; WORD32 esc_idx[MAXBANDS] = {0}; ixheaacd_mps_huff_read( it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_lav_idx_nodes.node_tab, &node); data = -(node + 1); if (data == 0) data = 3; else data--; lav = 2 * data + 1; if (p0_data[0] != NULL) { ixheaacd_mps_huff_read( it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_ipd_nodes.hp0.node_tab, &node); *p0_data[0] = -(node + 1); } if (p0_data[1] != NULL) { ixheaacd_mps_huff_read( it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_ipd_nodes.hp0.node_tab, &node); *p0_data[1] = -(node + 1); } for (i = 0; i < num_val; i += ch_fac) { switch (lav) { case 1: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav1, out_data[i], &escape); break; case 3: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav3, out_data[i], &escape); break; case 5: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav5, out_data[i], &escape); break; case 7: ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&huff_nodes->lav7, out_data[i], &escape); break; } if (escape) { esc_idx[esc_contrl++] = i; } else { ixheaacd_mps_sym_restoreipd(it_bit_buff, lav, out_data[i]); } } if (esc_contrl > 0) { ixheaacd_mps_pcm_decode(it_bit_buff, esc_data[0], esc_data[1], 0, 2 * esc_contrl, (2 * lav + 1)); for (i = 0; i < esc_contrl; i++) { out_data[esc_idx[i]][0] = esc_data[0][i] - lav; out_data[esc_idx[i]][1] = esc_data[1][i] - lav; } } return; } static VOID ia_mps_dec_huff_dec_cpc_2d( const ia_mps_dec_huff_cpc_nod_2d *huff_nodes, WORD32 out_data[][2], WORD32 num_val, WORD32 stride, WORD32 *p0_data[2], ia_bit_buf_struct *h_bit_buf) { WORD32 i = 0, lav = 0, escape = 0, esc_cntr = 0; WORD32 node = 0; WORD32 data = 0; WORD32 esc_data[2][MAXBANDS] = {{0}}; WORD32 esc_idx[MAXBANDS] = {0}; ixheaacd_mps_huff_read( h_bit_buf, (ia_huff_node_struct) & (ixheaacd_huff_lav_idx_nodes.node_tab), &node); data = -(node + 1); lav = 3 * data + 3; if (p0_data[0] != NULL) { ixheaacd_mps_huff_read( h_bit_buf, (ia_huff_node_struct) & (ixheaacd_huff_part0_nodes.cpc), &node); *p0_data[0] = -(node + 1); } if (p0_data[1] != NULL) { ixheaacd_mps_huff_read( h_bit_buf, (ia_huff_node_struct) & (ixheaacd_huff_part0_nodes.cpc), &node); *p0_data[1] = -(node + 1); } for (i = 0; i < num_val; i += stride) { switch (lav) { case LAV_3: ixheaacd_mps_huff_read_2d(h_bit_buf, (ia_huff_node_struct)&huff_nodes->lav3, out_data[i], &escape); break; case LAV_6: ixheaacd_mps_huff_read_2d(h_bit_buf, (ia_huff_node_struct)&huff_nodes->lav6, out_data[i], &escape); break; case LAV_9: ixheaacd_mps_huff_read_2d(h_bit_buf, (ia_huff_node_struct)&huff_nodes->lav9, out_data[i], &escape); break; case LAV_12: ixheaacd_mps_huff_read_2d(h_bit_buf, (ia_huff_node_struct)&huff_nodes->lav12, out_data[i], &escape); break; default: break; } if (escape) { esc_idx[esc_cntr++] = i; } else { ixheaacd_mps_sym_restore(h_bit_buf, lav, out_data[i]); } } if (esc_cntr > 0) { ixheaacd_mps_pcm_decode(h_bit_buf, esc_data[0], esc_data[1], 0, (esc_cntr << 1), ((lav << 1) + 1)); for (i = 0; i < esc_cntr; i++) { out_data[esc_idx[i]][0] = esc_data[0][i] - lav; out_data[esc_idx[i]][1] = esc_data[1][i] - lav; } } return; } static VOID ixheaacd_huff_decode(ia_bit_buf_struct *it_bit_buff, WORD32 *out_data_1, WORD32 *out_data_2, WORD32 data_type, WORD32 diff_type_1, WORD32 diff_type_2, WORD32 pilot_coding_flag, WORD32 *pilot_data, WORD32 num_val, WORD32 *cdg_scheme, WORD32 ld_mps_flag) { WORD32 diff_type; WORD32 i = 0; UWORD32 data = 0; WORD32 pair_vec[MAXBANDS][2]; WORD32* p0_data_1[2] = {NULL, NULL}; WORD32* p0_data_2[2] = {NULL, NULL}; WORD32 p0_flag[2]; WORD32 num_val_1_int = num_val; WORD32 num_val_2_int = num_val; WORD32* out_data_1_int = out_data_1; WORD32* out_data_2_int = out_data_2; WORD32 df_rest_flag_1 = 0; WORD32 df_rest_flag_2 = 0; WORD32 huff_yy_1; WORD32 huff_yy_2; WORD32 huff_yy; if (pilot_coding_flag) { switch (data_type) { case CLD: if (out_data_1 != NULL) { ixheaacd_mps_huff_dec_pilot( it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_pilot_nodes.cld, pilot_data); } break; case ICC: if (out_data_1 != NULL) { ixheaacd_mps_huff_dec_pilot( it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_pilot_nodes.icc, pilot_data); } break; case CPC: if (out_data_1 != NULL) { ixheaacd_mps_huff_dec_pilot( it_bit_buff, (ia_huff_node_struct) & (ixheaacd_huff_pilot_nodes.cpc), pilot_data); } break; default: break; } } data = ixheaacd_read_bits_buf(it_bit_buff, 1); *cdg_scheme = data << PAIR_SHIFT; if (*cdg_scheme >> PAIR_SHIFT == HUFF_2D) { if ((out_data_1 != NULL) && (out_data_2 != NULL) && (ld_mps_flag != 1)) { data = ixheaacd_read_bits_buf(it_bit_buff, 1); *cdg_scheme |= data; } else { *cdg_scheme |= FREQ_PAIR; } } if (pilot_coding_flag) { huff_yy_1 = PCM_PLT; huff_yy_2 = PCM_PLT; } else { huff_yy_1 = diff_type_1; huff_yy_2 = diff_type_2; } switch (*cdg_scheme >> PAIR_SHIFT) { case HUFF_1D: p0_flag[0] = (diff_type_1 == DIFF_FREQ) && !pilot_coding_flag; p0_flag[1] = (diff_type_2 == DIFF_FREQ) && !pilot_coding_flag; switch (data_type) { case CLD: if (out_data_1 != NULL) { ixheaacd_mps_huff_dec_cld_1d( it_bit_buff, &ixheaacd_huff_cld_nodes.h_1_dim[huff_yy_1], out_data_1, num_val_1_int, p0_flag[0]); } if (out_data_2 != NULL) { ixheaacd_mps_huff_dec_cld_1d( it_bit_buff, &ixheaacd_huff_cld_nodes.h_1_dim[huff_yy_2], out_data_2, num_val_2_int, p0_flag[1]); } break; case ICC: if (out_data_1 != NULL) { ixheaacd_mps_huff_dec_icc_1d( it_bit_buff, &ixheaacd_huff_icc_nodes.h_1_dim[huff_yy_1], out_data_1, num_val_1_int, p0_flag[0]); } if (out_data_2 != NULL) { ixheaacd_mps_huff_dec_icc_1d( it_bit_buff, &ixheaacd_huff_icc_nodes.h_1_dim[huff_yy_2], out_data_2, num_val_2_int, p0_flag[1]); } break; case IPD: if (out_data_1 != NULL) { ixheaacd_mps_huff_dec_ipd_1d( it_bit_buff, &ixheaacd_huff_ipd_nodes.h_1_dim[huff_yy_1], out_data_1, num_val_1_int, p0_flag[0]); } if (out_data_2 != NULL) { ixheaacd_mps_huff_dec_ipd_1d( it_bit_buff, &ixheaacd_huff_ipd_nodes.h_1_dim[huff_yy_2], out_data_2, num_val_2_int, p0_flag[1]); } break; case CPC: if (out_data_1 != NULL) { ia_mps_dec_huff_dec_cpc_1d( &(ixheaacd_huff_cpc_nodes.h_1_dim[huff_yy_1]), out_data_1, num_val_1_int, p0_flag[0], it_bit_buff); } if (out_data_2 != NULL) { ia_mps_dec_huff_dec_cpc_1d( &(ixheaacd_huff_cpc_nodes.h_1_dim[huff_yy_2]), out_data_2, num_val_2_int, p0_flag[1], it_bit_buff); } break; default: break; } break; case HUFF_2D: switch (*cdg_scheme & PAIR_MASK) { case FREQ_PAIR: if (out_data_1 != NULL) { if (!pilot_coding_flag && diff_type_1 == DIFF_FREQ) { p0_data_1[0] = &out_data_1[0]; p0_data_1[1] = NULL; num_val_1_int -= 1; out_data_1_int += 1; } df_rest_flag_1 = num_val_1_int % 2; if (df_rest_flag_1) num_val_1_int -= 1; } if (out_data_2 != NULL) { if (!pilot_coding_flag && diff_type_2 == DIFF_FREQ) { p0_data_2[0] = NULL; p0_data_2[1] = &out_data_2[0]; num_val_2_int -= 1; out_data_2_int += 1; } df_rest_flag_2 = num_val_2_int % 2; if (df_rest_flag_2) num_val_2_int -= 1; } switch (data_type) { case CLD: if (out_data_1 != NULL) { ixheaacd_mps_huff_dec_cld_2d( it_bit_buff, &ixheaacd_huff_cld_nodes.h_2_dim[huff_yy_1][FREQ_PAIR], pair_vec, num_val_1_int, 2, p0_data_1); if (df_rest_flag_1) { ixheaacd_mps_huff_dec_cld_1d( it_bit_buff, &ixheaacd_huff_cld_nodes.h_1_dim[huff_yy_1], out_data_1_int + num_val_1_int, 1, 0); } } if (out_data_2 != NULL) { ixheaacd_mps_huff_dec_cld_2d( it_bit_buff, &ixheaacd_huff_cld_nodes.h_2_dim[huff_yy_2][FREQ_PAIR], pair_vec + 1, num_val_2_int, 2, p0_data_2); if (df_rest_flag_2) { ixheaacd_mps_huff_dec_cld_1d( it_bit_buff, &ixheaacd_huff_cld_nodes.h_1_dim[huff_yy_2], out_data_2_int + num_val_2_int, 1, 0); } } break; case ICC: if (out_data_1 != NULL) { ixheaacd_mps_huff_dec_icc_2d( it_bit_buff, &ixheaacd_huff_icc_nodes.h_2_dim[huff_yy_1][FREQ_PAIR], pair_vec, num_val_1_int, 2, p0_data_1); if (df_rest_flag_1) { ixheaacd_mps_huff_dec_icc_1d( it_bit_buff, &ixheaacd_huff_icc_nodes.h_1_dim[huff_yy_1], out_data_1_int + num_val_1_int, 1, 0); } } if (out_data_2 != NULL) { ixheaacd_mps_huff_dec_icc_2d( it_bit_buff, &ixheaacd_huff_icc_nodes.h_2_dim[huff_yy_2][FREQ_PAIR], pair_vec + 1, num_val_2_int, 2, p0_data_2); if (df_rest_flag_2) { ixheaacd_mps_huff_dec_icc_1d( it_bit_buff, &ixheaacd_huff_icc_nodes.h_1_dim[huff_yy_2], out_data_2_int + num_val_2_int, 1, 0); } } break; case IPD: if (out_data_1 != NULL) { ixheaacd_mps_huff_dec_ipd_2d( it_bit_buff, &ixheaacd_huff_ipd_nodes.h_2_dim[huff_yy_1][FREQ_PAIR], pair_vec, num_val_1_int, 2, p0_data_1); if (df_rest_flag_1) { ixheaacd_mps_huff_dec_ipd_1d( it_bit_buff, &ixheaacd_huff_ipd_nodes.h_1_dim[huff_yy_1], out_data_1_int + num_val_1_int, 1, 0); } } if (out_data_2 != NULL) { ixheaacd_mps_huff_dec_ipd_2d( it_bit_buff, &ixheaacd_huff_ipd_nodes.h_2_dim[huff_yy_2][FREQ_PAIR], pair_vec + 1, num_val_2_int, 2, p0_data_2); if (df_rest_flag_2) { ixheaacd_mps_huff_dec_ipd_1d( it_bit_buff, &ixheaacd_huff_ipd_nodes.h_1_dim[huff_yy_2], out_data_2_int + num_val_2_int, 1, 0); } } break; case CPC: if (out_data_1 != NULL) { ia_mps_dec_huff_dec_cpc_2d( &(ixheaacd_huff_cpc_nodes.h_2_dim[huff_yy_1][FREQ_PAIR]), pair_vec, num_val_1_int, 2, p0_data_1, it_bit_buff); if (df_rest_flag_1) { ia_mps_dec_huff_dec_cpc_1d(&(ixheaacd_huff_cpc_nodes.h_1_dim[huff_yy_1]), out_data_1_int + num_val_1_int, 1, 0, it_bit_buff); } } if (out_data_2 != NULL) { ia_mps_dec_huff_dec_cpc_2d( &(ixheaacd_huff_cpc_nodes.h_2_dim[huff_yy_2][FREQ_PAIR]), pair_vec + 1, num_val_2_int, 2, p0_data_2, it_bit_buff); if (df_rest_flag_2) { ia_mps_dec_huff_dec_cpc_1d( &(ixheaacd_huff_cpc_nodes.h_1_dim[huff_yy_2]), out_data_2_int + num_val_2_int, 1, 0, it_bit_buff); } } break; default: break; } if (out_data_1 != NULL) { for (i = 0; i < num_val_1_int - 1; i += 2) { out_data_1_int[i] = pair_vec[i][0]; out_data_1_int[i + 1] = pair_vec[i][1]; } } if (out_data_2 != NULL) { for (i = 0; i < num_val_2_int - 1; i += 2) { out_data_2_int[i] = pair_vec[i + 1][0]; out_data_2_int[i + 1] = pair_vec[i + 1][1]; } } break; case TIME_PAIR: if (!pilot_coding_flag && ((diff_type_1 == DIFF_FREQ) || (diff_type_2 == DIFF_FREQ))) { p0_data_1[0] = &out_data_1[0]; p0_data_1[1] = &out_data_2[0]; out_data_1_int += 1; out_data_2_int += 1; num_val_1_int -= 1; } if ((diff_type_1 == DIFF_TIME) || (diff_type_2 == DIFF_TIME)) { diff_type = DIFF_TIME; } else { diff_type = DIFF_FREQ; } if (pilot_coding_flag) { huff_yy = PCM_PLT; } else { huff_yy = diff_type; } switch (data_type) { case CLD: ixheaacd_mps_huff_dec_cld_2d( it_bit_buff, &ixheaacd_huff_cld_nodes.h_2_dim[huff_yy][TIME_PAIR], pair_vec, num_val_1_int, 1, p0_data_1); break; case ICC: ixheaacd_mps_huff_dec_icc_2d( it_bit_buff, &ixheaacd_huff_icc_nodes.h_2_dim[huff_yy][TIME_PAIR], pair_vec, num_val_1_int, 1, p0_data_1); break; case IPD: ixheaacd_mps_huff_dec_ipd_2d( it_bit_buff, &ixheaacd_huff_ipd_nodes.h_2_dim[huff_yy][TIME_PAIR], pair_vec, num_val_1_int, 1, p0_data_1); break; case CPC: ia_mps_dec_huff_dec_cpc_2d(&(ixheaacd_huff_cpc_nodes.h_2_dim[huff_yy][TIME_PAIR]), pair_vec, num_val_1_int, 1, p0_data_1, it_bit_buff); break; default: break; } for (i = 0; i < num_val_1_int; i++) { out_data_1_int[i] = pair_vec[i][0]; out_data_2_int[i] = pair_vec[i][1]; } break; default: break; } break; default: break; } return; } static VOID ixheaacd_diff_freq_decode(WORD32* diff_data, WORD32* out_data, WORD32 num_val) { WORD32 i = 0; out_data[0] = diff_data[0]; for (i = 1; i < num_val; i++) { out_data[i] = out_data[i - 1] + diff_data[i]; } } static VOID ixheaacd_mps_diff_time_dec_bwd(WORD32* prev_data, WORD32* diff_data, WORD32* out_data, WORD32 mixed_diff_type, WORD32 num_val) { WORD32 i = 0; if (mixed_diff_type) { out_data[0] = diff_data[0]; for (i = 1; i < num_val; i++) { out_data[i] = prev_data[i] + diff_data[i]; } } else { for (i = 0; i < num_val; i++) { out_data[i] = prev_data[i] + diff_data[i]; } } } static VOID ixheaacd_mps_diff_time_dec_fwd(WORD32* prev_data, WORD32* diff_data, WORD32* out_data, WORD32 mixed_diff_type, WORD32 num_val) { WORD32 i = 0; if (mixed_diff_type) { out_data[0] = diff_data[0]; for (i = 1; i < num_val; i++) { out_data[i] = prev_data[i] - diff_data[i]; } } else { for (i = 0; i < num_val; i++) { out_data[i] = prev_data[i] - diff_data[i]; } } } static VOID ixheaacd_attach_lsb(ia_bit_buf_struct *it_bit_buff, WORD32* in_data_msb, WORD32 ixheaacd_drc_offset, WORD32 num_lsb, WORD32 num_val, WORD32* out_data) { WORD32 i = 0, lsb = 0, msb = 0; UWORD32 data = 0; for (i = 0; i < num_val; i++) { msb = in_data_msb[i]; if (num_lsb > 0) { data = ixheaacd_read_bits_buf(it_bit_buff, num_lsb); lsb = data; out_data[i] = ((msb << num_lsb) | lsb) - ixheaacd_drc_offset; } else out_data[i] = msb - ixheaacd_drc_offset; } return; } WORD32 ixheaacd_mps_ecdatapairdec(ia_bit_buf_struct *it_bit_buff, WORD32 outdata[][MAXBANDS], WORD32 history[MAXBANDS], WORD32 data_type, WORD32 set_idx, WORD32 start_band, WORD32 data_bands, WORD32 pair_flag, WORD32 coarse_flag, WORD32 diff_time_back_flag, WORD32 ld_mps_flag, WORD32 heaac_mps_present, WORD32 ec_flag) { WORD32 attach_lsb_flag = 0; WORD32 pcm_coding_flag = 0; WORD32 pilot_coding_flag = 0; WORD32 pilot_data[2] = {0, 0}; WORD32 mixed_time_pair = 0, pcm_val = 0; WORD32 quant_levels = 0, quant_offset = 0; UWORD32 data = 0; WORD32 band_start = 0; WORD32 data_pair[2][MAXBANDS] = {{0}}; WORD32 data_diff[2][MAXBANDS] = {{0}}; WORD32 msb_state[MAXBANDS] = {0}; WORD32* data_array[2] = {NULL, NULL}; WORD32 diff_type[2] = {DIFF_FREQ, DIFF_FREQ}; WORD32 cdg_scheme = HUFF_1D; WORD32 direction = BACKWARDS; if (heaac_mps_present == 1) { band_start = start_band; } switch (data_type) { case CLD: if (coarse_flag) { attach_lsb_flag = 0; quant_levels = 15; quant_offset = 7; } else { attach_lsb_flag = 0; quant_levels = 31; quant_offset = 15; } break; case ICC: if (coarse_flag) { attach_lsb_flag = 0; quant_levels = 4; quant_offset = 0; } else { attach_lsb_flag = 0; quant_levels = 8; quant_offset = 0; } break; case IPD: if (coarse_flag) { attach_lsb_flag = 0; quant_levels = 8; quant_offset = 0; } else { attach_lsb_flag = 1; quant_levels = 16; quant_offset = 0; } break; case CPC: if (coarse_flag) { attach_lsb_flag = 0; quant_levels = 26; quant_offset = 10; } else { attach_lsb_flag = 1; quant_levels = 51; quant_offset = 20; } break; default: break; } data = ixheaacd_read_bits_buf(it_bit_buff, 1); pcm_coding_flag = data; pilot_coding_flag = 0; if (heaac_mps_present == 1) { if (pcm_coding_flag && data_bands > 4) { data = ixheaacd_read_bits_buf(it_bit_buff, 1); pilot_coding_flag = data; } } if (pcm_coding_flag && !pilot_coding_flag) { if (pair_flag) { data_array[0] = data_pair[0]; data_array[1] = data_pair[1]; pcm_val = 2 * data_bands; } else { data_array[0] = data_pair[0]; data_array[1] = NULL; pcm_val = data_bands; } ixheaacd_mps_pcm_decode(it_bit_buff, data_array[0], data_array[1], quant_offset, pcm_val, quant_levels); } else { if (pair_flag) { data_array[0] = data_diff[0]; data_array[1] = data_diff[1]; } else { data_array[0] = data_diff[0]; data_array[1] = NULL; } diff_type[0] = DIFF_FREQ; diff_type[1] = DIFF_FREQ; direction = BACKWARDS; if (!pilot_coding_flag) { if (pair_flag || diff_time_back_flag) { data = ixheaacd_read_bits_buf(it_bit_buff, 1); diff_type[0] = data; } if (pair_flag && ((diff_type[0] == DIFF_FREQ) || diff_time_back_flag)) { data = ixheaacd_read_bits_buf(it_bit_buff, 1); diff_type[1] = data; } } if (data_bands <= 0) { if (!ec_flag) return -1; else longjmp(*(it_bit_buff->xaac_jmp_buf), IA_FATAL_ERROR); } ixheaacd_huff_decode(it_bit_buff, data_array[0], data_array[1], data_type, diff_type[0], diff_type[1], pilot_coding_flag, pilot_data, data_bands, &cdg_scheme, ld_mps_flag); if (pilot_coding_flag && heaac_mps_present == 1) { WORD32 i; for (i = 0; i < data_bands; i++) { data_pair[0][i] = data_diff[0][i] + pilot_data[0]; } if (pair_flag) { for (i = 0; i < data_bands; i++) { data_pair[1][i] = data_diff[1][i] + pilot_data[0]; } } } else { if ((diff_type[0] == DIFF_TIME) || (diff_type[1] == DIFF_TIME)) { if (pair_flag) { if ((diff_type[0] == DIFF_TIME) && !diff_time_back_flag) { direction = FORWARDS; } else if (diff_type[1] == DIFF_TIME) { direction = BACKWARDS; } else { data = ixheaacd_read_bits_buf(it_bit_buff, 1); direction = data; } } else { direction = BACKWARDS; } } mixed_time_pair = (diff_type[0] != diff_type[1]) && ((cdg_scheme & PAIR_MASK) == TIME_PAIR); if (direction == BACKWARDS) { if (diff_type[0] == DIFF_FREQ) { ixheaacd_diff_freq_decode(data_diff[0], data_pair[0], data_bands); } else { WORD32 i; for (i = 0; i < data_bands; i++) { msb_state[i] = history[i + band_start] + quant_offset; if (attach_lsb_flag) { msb_state[i] >>= 1; } } ixheaacd_mps_diff_time_dec_bwd(msb_state, data_diff[0], data_pair[0], mixed_time_pair, data_bands); } if (diff_type[1] == DIFF_FREQ) { ixheaacd_diff_freq_decode(data_diff[1], data_pair[1], data_bands); } else { ixheaacd_mps_diff_time_dec_bwd(data_pair[0], data_diff[1], data_pair[1], mixed_time_pair, data_bands); } } else { ixheaacd_diff_freq_decode(data_diff[1], data_pair[1], data_bands); if (diff_type[0] == DIFF_FREQ) { ixheaacd_diff_freq_decode(data_diff[0], data_pair[0], data_bands); } else { ixheaacd_mps_diff_time_dec_fwd(data_pair[1], data_diff[0], data_pair[0], mixed_time_pair, data_bands); } } } ixheaacd_attach_lsb(it_bit_buff, data_pair[0], quant_offset, attach_lsb_flag ? 1 : 0, data_bands, data_pair[0]); if (pair_flag) { ixheaacd_attach_lsb(it_bit_buff, data_pair[1], quant_offset, attach_lsb_flag ? 1 : 0, data_bands, data_pair[1]); } } memcpy(outdata[set_idx] + band_start, data_pair[0], sizeof(WORD32) * data_bands); if (pair_flag) { memcpy(outdata[set_idx + 1] + band_start, data_pair[1], sizeof(WORD32) * data_bands); } return IA_NO_ERROR; } VOID ixheaacd_mps_huff_decode(ia_bit_buf_struct *it_bit_buff, WORD32* out_data, WORD32 num_val) { WORD32 val_rcvd = 0, dummy = 0, i = 0, val = 0, len = 0; WORD32 rl_data[2] = {0}; while (val_rcvd < num_val) { ixheaacd_mps_huff_read_2d(it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_reshape_nodes, rl_data, &dummy); val = rl_data[0]; len = rl_data[1] + 1; for (i = val_rcvd; i < val_rcvd + len; i++) { out_data[i] = val; } val_rcvd += len; } return; } VOID ixheaacd_update_out_buffer(ia_heaac_mps_state_struct *pstr_mps_state, WORD16 *out_buf) { WORD32 ch, sam; WORD32 num_output_channels_at = pstr_mps_state->num_output_channels_at; WORD32 frame_length = pstr_mps_state->frame_length; WORD32 *p_time_out = pstr_mps_state->array_struct->time_out; for (ch = 0; ch < num_output_channels_at; ch++) { WORD32 *time_out = p_time_out; for (sam = 0; sam < frame_length; sam++) { out_buf[sam * num_output_channels_at + ch] = (*time_out++) >> 16; } p_time_out += QBXTS; } return; } VOID ixheaacd_update_time_out_buffer(ia_heaac_mps_state_struct *pstr_mps_state) { WORD32 n; WORD32 up_mix_type = pstr_mps_state->up_mix_type; WORD32 tree_config = pstr_mps_state->tree_config; WORD32 lfe_gain = pstr_mps_state->lfe_gain; WORD32 surround_gain = pstr_mps_state->surround_gain; if (!pstr_mps_state->bs_config.arbitrary_tree && up_mix_type != 2 && up_mix_type != 3) { WORD32 frame_length = pstr_mps_state->frame_length; WORD32 *time_out_3 = pstr_mps_state->array_struct->time_out + QBXTSX3; WORD32 *time_out_4 = time_out_3 + QBXTS; WORD32 *time_out_5 = time_out_4 + QBXTS; WORD32 *time_out_6 = time_out_5 + QBXTS; WORD32 *time_out_7 = time_out_6 + QBXTS; for (n = 0; n < frame_length; n++) { *time_out_3 = ixheaacd_mps_mult32_shr_15(*time_out_3, lfe_gain); time_out_3++; *time_out_4 = ixheaacd_mps_mult32_shr_15(*time_out_4, surround_gain); time_out_4++; *time_out_5 = ixheaacd_mps_mult32_shr_15(*time_out_5, surround_gain); time_out_5++; } if (tree_config == 4 || tree_config == 6) { for (n = 0; n < frame_length; n++) { *time_out_6 = ixheaacd_mps_mult32_shr_15(*time_out_6, surround_gain); time_out_6++; *time_out_7 = ixheaacd_mps_mult32_shr_15(*time_out_7, surround_gain); time_out_7++; } } } } static IA_ERRORCODE ixheaacd_apply_frame(ia_heaac_mps_state_struct *pstr_mps_state, WORD32 in_time_slots, WORD32 *m_qmf_real, WORD32 *m_qmf_imag, WORD16 *out_buf) { IA_ERRORCODE err_code = IA_NO_ERROR; WORD32 ch, ts, qs; WORD32 *pbuf_real, *pbuf_imag, *pbuf_re, *pbuf_im; WORD32 *buf_real, *buf_imag; WORD32 *qmf_input_delay_real_2 = pstr_mps_state->mps_persistent_mem.qmf_input_delay_real; WORD32 *qmf_input_delay_imag_2 = pstr_mps_state->mps_persistent_mem.qmf_input_delay_imag; WORD32 num_input_channels = pstr_mps_state->num_input_channels; WORD32 qmf_bands = pstr_mps_state->qmf_bands; WORD32 cur_time_slot = pstr_mps_state->cur_time_slot; WORD32 time_slots = pstr_mps_state->time_slots; WORD32 qmf_input_delay_index = pstr_mps_state->qmf_input_delay_index; WORD32 up_mix_type = pstr_mps_state->up_mix_type; WORD32 residual_coding = pstr_mps_state->residual_coding; WORD32 arbitrary_downmix = pstr_mps_state->arbitrary_downmix; WORD32 *qmf_input_delay_real_1, *qmf_input_delay_imag_1; WORD32 *qmf_input_delay_real, *qmf_input_delay_imag; WORD32 *p_qmf_real = m_qmf_real; WORD32 *p_qmf_imag = m_qmf_imag; WORD32 *p_qmf_re, *p_qmf_im, *qmf_real, *qmf_imag; if (cur_time_slot + in_time_slots > time_slots) { if (pstr_mps_state->ec_flag) cur_time_slot = time_slots - in_time_slots; else return IA_FATAL_ERROR; } if (time_slots % HOP_SLOTS != 0) { if (pstr_mps_state->ec_flag) time_slots = time_slots - (time_slots % HOP_SLOTS); else return IA_XHEAAC_MPS_DEC_EXE_FATAL_INVALID_TIMESLOTS; } pbuf_real = pstr_mps_state->array_struct->buf_real; pbuf_imag = pstr_mps_state->array_struct->buf_imag; if (up_mix_type == 1) { for (ch = 0; ch < num_input_channels; ch++) { pbuf_re = pbuf_real; pbuf_im = pbuf_imag; p_qmf_re = p_qmf_real; p_qmf_im = p_qmf_imag; for (ts = 0; ts < in_time_slots; ts++) { buf_real = pbuf_re + (cur_time_slot + ts); buf_imag = pbuf_im + (cur_time_slot + ts); qmf_real = p_qmf_re; qmf_imag = p_qmf_im; for (qs = 0; qs < qmf_bands; qs++) { *buf_real++ = *qmf_real++; *buf_imag++ = *qmf_imag++; } pbuf_re += MAX_HYBRID_BANDS; pbuf_im += MAX_HYBRID_BANDS; p_qmf_re += MAX_NUM_QMF_BANDS; p_qmf_im += MAX_NUM_QMF_BANDS; } pbuf_real += TSXHB; pbuf_imag += TSXHB; p_qmf_real += QBXTS; p_qmf_imag += QBXTS; } } else { for (ch = 0; ch < num_input_channels; ch++) { WORD32 offset = ch * PCXQB; qmf_input_delay_index = pstr_mps_state->qmf_input_delay_index; qmf_input_delay_real_1 = qmf_input_delay_real_2 + offset; qmf_input_delay_imag_1 = qmf_input_delay_imag_2 + offset; pbuf_re = pbuf_real + cur_time_slot * MAX_HYBRID_BANDS; pbuf_im = pbuf_imag + cur_time_slot * MAX_HYBRID_BANDS; p_qmf_re = p_qmf_real; p_qmf_im = p_qmf_imag; for (ts = 0; ts < in_time_slots; ts++) { WORD32 off_set = qmf_input_delay_index * MAX_NUM_QMF_BANDS; qmf_input_delay_real = qmf_input_delay_real_1 + off_set; qmf_input_delay_imag = qmf_input_delay_imag_1 + off_set; buf_real = pbuf_re; buf_imag = pbuf_im; qmf_real = p_qmf_re; qmf_imag = p_qmf_im; for (qs = 0; qs < qmf_bands; qs++) { { *buf_real++ = *qmf_input_delay_real; *buf_imag++ = *qmf_input_delay_imag; *qmf_input_delay_real++ = *qmf_real++; *qmf_input_delay_imag++ = *qmf_imag++; } } qmf_input_delay_index++; if (qmf_input_delay_index == PC_FILTERDELAY) { qmf_input_delay_index = 0; } pbuf_re += MAX_HYBRID_BANDS; pbuf_im += MAX_HYBRID_BANDS; p_qmf_re += MAX_NUM_QMF_BANDS; p_qmf_im += MAX_NUM_QMF_BANDS; } pbuf_real += TSXHB; pbuf_imag += TSXHB; p_qmf_real += QBXTS; p_qmf_imag += QBXTS; } pstr_mps_state->qmf_input_delay_index = qmf_input_delay_index; } pstr_mps_state->cur_time_slot += in_time_slots; cur_time_slot = pstr_mps_state->cur_time_slot; if (pstr_mps_state->cur_time_slot < time_slots) { if (pstr_mps_state->ec_flag) { pstr_mps_state->cur_time_slot = time_slots; } else return IA_FATAL_ERROR; } pstr_mps_state->cur_time_slot = 0; err_code = ixheaacd_decode_frame(pstr_mps_state); if (err_code != IA_NO_ERROR) return err_code; ixheaacd_mdct_2_qmf(pstr_mps_state); ixheaacd_hybrid_qmf_analysis(pstr_mps_state); if (residual_coding || (arbitrary_downmix == 2)) { ixheaacd_update_buffers(pstr_mps_state); } if (up_mix_type == 1) { ixheaacd_apply_blind(pstr_mps_state); } ixheaacd_calc_m1m2(pstr_mps_state); ixheaacd_smooth_m1m2(pstr_mps_state); ixheaacd_mps_apply_m1(pstr_mps_state); ixheaacd_buffer_m1(pstr_mps_state); if (up_mix_type != 2) { if (pstr_mps_state->temp_shape_config == 2) { ixheaacd_pre_reshape_bb_env(pstr_mps_state); } } ixheaacd_create_w(pstr_mps_state); ixheaacd_apply_m2(pstr_mps_state); ixheaacd_buffer_m2(pstr_mps_state); if (up_mix_type != 2) { if (pstr_mps_state->temp_shape_config == 2) { ixheaacd_reshape_bb_env(pstr_mps_state); } } ixheaacd_tp_process(pstr_mps_state); ixheaacd_update_time_out_buffer(pstr_mps_state); ixheaacd_update_out_buffer(pstr_mps_state, out_buf); pstr_mps_state->parse_next_bitstream_frame = 1; return IA_NO_ERROR; } IA_ERRORCODE ixheaacd_heaac_mps_apply(ia_exhaacplus_dec_api_struct *self, WORD16 *output_buf, UWORD8 *mps_buffer, WORD32 mps_bytes) { ia_heaac_mps_state_struct *pstr_mps_state = &self->p_state_aac->heaac_mps_handle; IA_ERRORCODE error_code = IA_NO_ERROR; WORD32 n_channels, n_time_slots, qmf_bands, channel; ia_heaac_mps_state_struct *curr_state = pstr_mps_state; WORD32 *p_qmf_real = pstr_mps_state->array_struct->m_qmf_real; WORD32 *p_qmf_imag = pstr_mps_state->array_struct->m_qmf_imag; WORD32 buffer_size = mps_bytes; if (self->p_state_aac->heaac_mps_handle.is_first == 1) { self->p_state_aac->heaac_mps_handle.is_first = 1; if (pstr_mps_state->bytes_remaining != 0) { buffer_size = mps_bytes + pstr_mps_state->bytes_remaining; for (WORD32 ii = 0; ii < mps_bytes; ii++) { pstr_mps_state->temp_buf[ii + pstr_mps_state->bytes_remaining] = mps_buffer[ii]; } pstr_mps_state->ptr_mps_bit_buff = ixheaacd_create_bit_buf( &pstr_mps_state->mps_bit_buf, (UWORD8 *)pstr_mps_state->temp_buf, buffer_size); pstr_mps_state->ptr_mps_bit_buff->xaac_jmp_buf = &self->p_state_aac->xaac_jmp_buf; pstr_mps_state->ptr_mps_bit_buff->cnt_bits += (8 * buffer_size); } else { memcpy(pstr_mps_state->temp_buf, mps_buffer, mps_bytes); buffer_size = mps_bytes; pstr_mps_state->ptr_mps_bit_buff = ixheaacd_create_bit_buf( &pstr_mps_state->mps_bit_buf, (UWORD8 *)mps_buffer, buffer_size); pstr_mps_state->ptr_mps_bit_buff->cnt_bits += (8 * buffer_size); pstr_mps_state->ptr_mps_bit_buff->xaac_jmp_buf = &self->p_state_aac->xaac_jmp_buf; } } if (curr_state->num_input_channels > 2 && pstr_mps_state->mps_with_sbr == 1) { if (pstr_mps_state->ec_flag) { curr_state->num_input_channels = 2; pstr_mps_state->frame_ok = 0; } else { return IA_FATAL_ERROR; } } n_channels = curr_state->num_input_channels; n_time_slots = curr_state->time_slots; qmf_bands = curr_state->qmf_bands; if (pstr_mps_state->mps_decode == 1) { if (pstr_mps_state->mps_with_sbr) { for (channel = 0; channel < n_channels; channel++) { WORD32 kk = 0; if (self->aac_config.ui_enh_sbr) { for (WORD32 ii = 0; ii < n_time_slots; ii++) { FLOAT32 *qmf_re = self->p_state_aac->str_sbr_dec_info[0] ->pstr_sbr_channel[channel]->str_sbr_dec.pp_qmf_buf_real[ii]; FLOAT32 *qmf_im = self->p_state_aac->str_sbr_dec_info[0] ->pstr_sbr_channel[channel]->str_sbr_dec.pp_qmf_buf_imag[ii]; for (WORD32 jj = 0; jj < qmf_bands; jj++) { p_qmf_real[kk] = ixheaacd_mps_mult32_shr_15( curr_state->clip_protect_gain, (WORD32)(qmf_re[jj] * 1024)); p_qmf_imag[kk++] = ixheaacd_mps_mult32_shr_15( curr_state->clip_protect_gain, (WORD32)(qmf_im[jj] * 1024)); } } } else { for (WORD32 ii = 0; ii < n_time_slots; ii++) { WORD32 *qmf_re = self->p_state_aac->str_sbr_dec_info[0] ->pstr_sbr_channel[channel]->str_sbr_dec.p_arr_qmf_buf_real[ii]; WORD32 *qmf_im = self->p_state_aac->str_sbr_dec_info[0] ->pstr_sbr_channel[channel]->str_sbr_dec.p_arr_qmf_buf_imag[ii]; for (WORD32 jj = 0; jj < qmf_bands; jj++) { p_qmf_real[kk] = ixheaacd_mps_mult32_shr_15( curr_state->clip_protect_gain, qmf_re[jj] * 256); p_qmf_imag[kk++] = ixheaacd_mps_mult32_shr_15( curr_state->clip_protect_gain, qmf_im[jj] * 256); } } } p_qmf_real += QBXTS; p_qmf_imag += QBXTS; } } else { for (channel = 0; channel < n_channels; channel++) { ixheaacd_calc_ana_filt_bank(pstr_mps_state, output_buf, p_qmf_real, p_qmf_imag, channel); p_qmf_real += QBXTS; p_qmf_imag += QBXTS; } } if (!pstr_mps_state->ec_flag && pstr_mps_state->frame_ok) { error_code = ixheaacd_parse_frame(pstr_mps_state); if (error_code != IA_NO_ERROR) return error_code; } if (!pstr_mps_state->first_frame || !pstr_mps_state->ec_flag) { error_code = ixheaacd_apply_frame(pstr_mps_state, n_time_slots, pstr_mps_state->array_struct->m_qmf_real, pstr_mps_state->array_struct->m_qmf_imag, output_buf); if (error_code != IA_NO_ERROR) return error_code; } if (error_code == 0 && pstr_mps_state->ec_flag && pstr_mps_state->frame_ok) { error_code = ixheaacd_parse_frame(pstr_mps_state); if (error_code != IA_NO_ERROR) { pstr_mps_state->frame_ok = 0; } } pstr_mps_state->i_bytes_consumed_mps = (WORD32)(pstr_mps_state->ptr_mps_bit_buff->ptr_read_next - pstr_mps_state->ptr_mps_bit_buff->ptr_bit_buf_base); pstr_mps_state->bytes_remaining = buffer_size - pstr_mps_state->i_bytes_consumed_mps; if (pstr_mps_state->bytes_remaining < 0) { if (pstr_mps_state->ec_flag) { pstr_mps_state->bytes_remaining = 0; pstr_mps_state->frame_ok = 0; } else { return IA_FATAL_ERROR; } } if (pstr_mps_state->bytes_remaining != 0) { for (WORD32 ii = 0; ii < pstr_mps_state->bytes_remaining; ii++) { pstr_mps_state->temp_buf[ii] = pstr_mps_state->temp_buf[ii + pstr_mps_state->i_bytes_consumed_mps]; } } } self->p_state_aac->heaac_mps_handle.is_first = 1; self->p_state_aac->heaac_mps_handle.first_frame = 0; return error_code; }