| /****************************************************************************** |
| * * |
| * 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 <stdlib.h> |
| #include <stdio.h> |
| |
| #include <ixheaacd_type_def.h> |
| |
| #include "ixheaacd_bitbuffer.h" |
| |
| #include "ixheaacd_defines.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_drc_dec.h" |
| |
| #include "ixheaacd_lt_predict.h" |
| #include "ixheaacd_channelinfo.h" |
| #include "ixheaacd_channel.h" |
| #include "ixheaacd_channelinfo.h" |
| #include "ixheaacd_sbrdecoder.h" |
| #include "ixheaacd_audioobjtypes.h" |
| #include "ixheaacd_latmdemux.h" |
| #include "ixheaacd_aacdec.h" |
| #include "ixheaacd_sbr_common.h" |
| |
| #include "ixheaacd_mps_polyphase.h" |
| #include "ixheaacd_config.h" |
| #include "ixheaacd_mps_dec.h" |
| #include "ixheaacd_mps_interface.h" |
| #include "ixheaacd_struct_def.h" |
| |
| #include "ixheaacd_config.h" |
| #include "ixheaacd_mps_interface.h" |
| |
| #include "ixheaacd_mps_polyphase.h" |
| |
| #include "ixheaacd_mps_dec.h" |
| #include "ixheaacd_mps_process.h" |
| #include "ixheaacd_mps_decor.h" |
| #include "ixheaacd_mps_hybfilter.h" |
| #include "ixheaacd_mps_nlc_dec.h" |
| #include "ixheaacd_mps_huff_tab.h" |
| |
| #include "math.h" |
| |
| #include <assert.h> |
| #include <string.h> |
| |
| extern ia_huff_pt0_nodes_struct ixheaacd_huff_part0_nodes; |
| extern ia_huff_ipd_nodes_struct ixheaacd_huff_ipd_nodes; |
| extern ia_huff_lav_nodes_struct ixheaacd_huff_lav_idx_nodes; |
| extern ia_huff_pt0_nodes_struct ixheaacd_huff_pilot_nodes; |
| extern ia_huff_cld_nodes_struct ixheaacd_huff_cld_nodes; |
| extern ia_huff_icc_nodes_struct ixheaacd_huff_icc_nodes; |
| extern ia_huff_res_nodes_struct ixheaacd_huff_reshape_nodes; |
| |
| VOID 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 ((self->residual_coding) && (self->res_bands > 0)) self->res_ch_count++; |
| |
| ixheaacd_mps_env_init(self); |
| |
| ixheaacd_mps_synt_create(&self->poly_phase_filt_kernel, 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]); |
| |
| ixheaacd_mps_decor_init(&(self->mps_decor), self->hyb_band_count, |
| self->config->bs_decorr_config); |
| |
| 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)); |
| |
| return; |
| } |
| |
| static FLOAT32 ixheaacd_tsd_mul_re[] = { |
| 1.0f, 0.707106781186548f, 0.0f, -0.707106781186548f, |
| -1.0f, -0.707106781186548f, 0.0f, 0.707106781186548f}; |
| |
| static 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) { |
| 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->qmf_band_count, |
| self->time_slots, self->hyb_res); |
| } |
| } |
| |
| VOID ixheaacd_mps_qmf_hyb_synthesis(ia_mps_dec_state_struct* self) { |
| WORD32 ch; |
| |
| 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); |
| |
| 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; 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[ts][qs].re; |
| self->w_dir[row][ts][qs].im = self->hyb_res[ts][qs].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_create_w(ia_mps_dec_state_struct* self) { |
| ixheaacd_mps_decor(self); |
| ixheaacd_mps_mix_res_decor(self); |
| } |
| 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->output_buffer = output_buffer; |
| |
| assert(self->present_time_slot + time_slots <= self->time_slots); |
| |
| for (ts = 0; ts < time_slots; ts++) { |
| for (ch = 0; ch < in_ch_count; ch++) { |
| for (qs = 0; qs < self->qmf_band_count; qs++) { |
| self->qmf_in[ch][self->present_time_slot + ts][qs].re = |
| self->input_gain * input_buffer[2 * ch][ts][qs]; |
| self->qmf_in[ch][self->present_time_slot + ts][qs].im = |
| self->input_gain * input_buffer[2 * ch + 1][ts][qs]; |
| } |
| } |
| } |
| |
| self->present_time_slot += time_slots; |
| |
| if (self->present_time_slot < self->time_slots) return 0; |
| |
| self->present_time_slot = 0; |
| |
| ixheaacd_mps_frame_decode(self); |
| |
| ixheaacd_mps_qmf_hyb_analysis(self); |
| |
| ixheaacd_pre_and_mix_matrix_calculation(self); |
| |
| ixheaacd_mps_pre_matrix_mix_matrix_smoothing(self); |
| |
| err = ixheaacd_mps_apply_pre_matrix(self); |
| if (err < 0) return err; |
| |
| ixheaacd_mps_create_w(self); |
| |
| err = ixheaacd_mps_apply_mix_matrix(self); |
| if (err < 0) return err; |
| |
| 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; |
| return 0; |
| } |
| |
| #define min(a, b) (((a) < (b)) ? (a) : (b)) |
| |
| static WORD32 ixheaacd_mps_pcm_decode(ia_handle_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: |
| assert(0); |
| } |
| |
| 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 1; |
| } |
| |
| static WORD32 ixheaacd_mps_huff_read(ia_handle_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 1; |
| } |
| |
| static WORD32 ixheaacd_mps_huff_read_2d(ia_handle_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; |
| |
| if (!ixheaacd_mps_huff_read(it_bit_buff, node_tab, &node)) return 0; |
| *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 1; |
| } |
| |
| static WORD32 ixheaacd_mps_sym_restore(ia_handle_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 1; |
| } |
| |
| static WORD32 ixheaacd_mps_sym_restoreipd(ia_handle_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 1; |
| } |
| |
| static WORD32 ixheaacd_mps_huff_dec_pilot(ia_handle_bit_buf_struct it_bit_buff, |
| const WORD32 (*node_tab)[][2], |
| WORD32* pilot_data) { |
| WORD32 node = 0; |
| |
| if (!ixheaacd_mps_huff_read(it_bit_buff, node_tab, &node)) return 0; |
| *pilot_data = -(node + 1); |
| |
| return 1; |
| } |
| |
| static WORD32 ixheaacd_mps_huff_dec_cld_1d( |
| ia_handle_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) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.cld, |
| &node)) |
| return 0; |
| out_data[0] = -(node + 1); |
| ixheaacd_drc_offset = 1; |
| } |
| |
| for (i = ixheaacd_drc_offset; i < num_val; i++) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, (ia_huff_node_struct)&huff_nodes->node_tab, &node)) |
| return 0; |
| 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 1; |
| } |
| |
| static WORD32 ixheaacd_mps_huff_dec_ipd_1d( |
| ia_handle_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) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, |
| (ia_huff_node_struct)&ixheaacd_huff_ipd_nodes.hp0.node_tab, &node)) |
| return 0; |
| out_data[0] = -(node + 1); |
| ixheaacd_drc_offset = 1; |
| } |
| |
| for (i = ixheaacd_drc_offset; i < num_val; i++) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, (ia_huff_node_struct)&huff_nodes->node_tab, &node)) |
| return 0; |
| od = -(node + 1); |
| out_data[i] = od; |
| } |
| |
| return 1; |
| } |
| |
| static WORD32 ixheaacd_mps_huff_dec_icc_1d( |
| ia_handle_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) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.icc, |
| &node)) |
| return 0; |
| out_data[0] = -(node + 1); |
| ixheaacd_drc_offset = 1; |
| } |
| |
| for (i = ixheaacd_drc_offset; i < num_val; i++) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, (ia_huff_node_struct)&huff_nodes->node_tab, &node)) |
| return 0; |
| 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 1; |
| } |
| |
| static WORD32 ixheaacd_mps_huff_dec_cld_2d( |
| ia_handle_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}; |
| |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, |
| (ia_huff_node_struct)&ixheaacd_huff_lav_idx_nodes.node_tab, &node)) |
| return 0; |
| data = -(node + 1); |
| |
| lav = 2 * data + 3; |
| |
| if (p0_data[0] != NULL) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.cld, |
| &node)) |
| return 0; |
| *p0_data[0] = -(node + 1); |
| } |
| if (p0_data[1] != NULL) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.cld, |
| &node)) |
| return 0; |
| *p0_data[1] = -(node + 1); |
| } |
| |
| for (i = 0; i < num_val; i += ch_fac) { |
| switch (lav) { |
| case 3: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav3, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| case 5: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav5, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| case 7: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav7, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| case 9: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav9, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| default: |
| break; |
| } |
| |
| if (escape) { |
| esc_idx[esc_contrl++] = i; |
| } else { |
| if (!ixheaacd_mps_sym_restore(it_bit_buff, lav, out_data[i])) return 0; |
| } |
| } |
| |
| if (esc_contrl > 0) { |
| if (!ixheaacd_mps_pcm_decode(it_bit_buff, esc_data[0], esc_data[1], 0, |
| 2 * esc_contrl, (2 * lav + 1))) |
| return 0; |
| |
| 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 1; |
| } |
| |
| static WORD32 ixheaacd_mps_huff_dec_icc_2d( |
| ia_handle_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}; |
| |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, |
| (ia_huff_node_struct)&ixheaacd_huff_lav_idx_nodes.node_tab, &node)) |
| return 0; |
| data = -(node + 1); |
| |
| lav = 2 * data + 1; |
| |
| if (p0_data[0] != NULL) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.icc, |
| &node)) |
| return 0; |
| *p0_data[0] = -(node + 1); |
| } |
| if (p0_data[1] != NULL) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_part0_nodes.icc, |
| &node)) |
| return 0; |
| *p0_data[1] = -(node + 1); |
| } |
| |
| for (i = 0; i < num_val; i += ch_fac) { |
| switch (lav) { |
| case 1: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav1, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| case 3: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav3, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| case 5: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav5, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| case 7: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav7, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| } |
| |
| if (escape) { |
| esc_idx[esc_contrl++] = i; |
| } else { |
| if (!ixheaacd_mps_sym_restore(it_bit_buff, lav, out_data[i])) return 0; |
| } |
| } |
| |
| if (esc_contrl > 0) { |
| if (!ixheaacd_mps_pcm_decode(it_bit_buff, esc_data[0], esc_data[1], 0, |
| 2 * esc_contrl, (2 * lav + 1))) |
| return 0; |
| |
| 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 1; |
| } |
| |
| static WORD32 ixheaacd_mps_huff_dec_ipd_2d( |
| ia_handle_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}; |
| |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, |
| (ia_huff_node_struct)&ixheaacd_huff_lav_idx_nodes.node_tab, &node)) |
| return 0; |
| |
| data = -(node + 1); |
| if (data == 0) |
| data = 3; |
| else |
| data--; |
| |
| lav = 2 * data + 1; |
| |
| if (p0_data[0] != NULL) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, |
| (ia_huff_node_struct)&ixheaacd_huff_ipd_nodes.hp0.node_tab, &node)) |
| return 0; |
| *p0_data[0] = -(node + 1); |
| } |
| if (p0_data[1] != NULL) { |
| if (!ixheaacd_mps_huff_read( |
| it_bit_buff, |
| (ia_huff_node_struct)&ixheaacd_huff_ipd_nodes.hp0.node_tab, &node)) |
| return 0; |
| *p0_data[1] = -(node + 1); |
| } |
| |
| for (i = 0; i < num_val; i += ch_fac) { |
| switch (lav) { |
| case 1: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav1, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| case 3: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav3, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| case 5: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav5, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| case 7: |
| if (!ixheaacd_mps_huff_read_2d(it_bit_buff, |
| (ia_huff_node_struct)&huff_nodes->lav7, |
| out_data[i], &escape)) |
| return 0; |
| break; |
| } |
| |
| if (escape) { |
| esc_idx[esc_contrl++] = i; |
| } else { |
| if (!ixheaacd_mps_sym_restoreipd(it_bit_buff, lav, out_data[i])) return 0; |
| } |
| } |
| |
| if (esc_contrl > 0) { |
| if (!ixheaacd_mps_pcm_decode(it_bit_buff, esc_data[0], esc_data[1], 0, |
| 2 * esc_contrl, (2 * lav + 1))) |
| return 0; |
| |
| 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 1; |
| } |
| |
| static WORD32 ixheaacd_huff_decode(ia_handle_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 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) { |
| if (!ixheaacd_mps_huff_dec_pilot( |
| it_bit_buff, |
| (ia_huff_node_struct)&ixheaacd_huff_pilot_nodes.cld, |
| pilot_data)) |
| return 0; |
| } |
| break; |
| |
| case ICC: |
| if (out_data_1 != NULL) { |
| if (!ixheaacd_mps_huff_dec_pilot( |
| it_bit_buff, |
| (ia_huff_node_struct)&ixheaacd_huff_pilot_nodes.icc, |
| pilot_data)) |
| return 0; |
| } |
| break; |
| |
| default: |
| if (out_data_1 != NULL) { |
| return 0; |
| } |
| 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)) { |
| 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) { |
| if (!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])) |
| return 0; |
| } |
| if (out_data_2 != NULL) { |
| if (!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])) |
| return 0; |
| } |
| |
| break; |
| |
| case ICC: |
| if (out_data_1 != NULL) { |
| if (!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])) |
| return 0; |
| } |
| if (out_data_2 != NULL) { |
| if (!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])) |
| return 0; |
| } |
| |
| break; |
| |
| case IPD: |
| if (out_data_1 != NULL) { |
| if (!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])) |
| return 0; |
| } |
| if (out_data_2 != NULL) { |
| if (!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])) |
| return 0; |
| } |
| |
| 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) { |
| if (!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)) |
| return 0; |
| if (df_rest_flag_1) { |
| if (!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)) |
| return 0; |
| } |
| } |
| if (out_data_2 != NULL) { |
| if (!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)) |
| return 0; |
| if (df_rest_flag_2) { |
| if (!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)) |
| return 0; |
| } |
| } |
| break; |
| |
| case ICC: |
| if (out_data_1 != NULL) { |
| if (!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)) |
| return 0; |
| if (df_rest_flag_1) { |
| if (!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)) |
| return 0; |
| } |
| } |
| if (out_data_2 != NULL) { |
| if (!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)) |
| return 0; |
| if (df_rest_flag_2) { |
| if (!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)) |
| return 0; |
| } |
| } |
| break; |
| |
| case IPD: |
| if (out_data_1 != NULL) { |
| if (!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)) |
| return 0; |
| if (df_rest_flag_1) { |
| if (!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)) |
| return 0; |
| } |
| } |
| if (out_data_2 != NULL) { |
| if (!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)) |
| return 0; |
| if (df_rest_flag_2) { |
| if (!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)) |
| return 0; |
| } |
| } |
| 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: |
| if (!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)) |
| return 0; |
| break; |
| |
| case ICC: |
| if (!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)) |
| return 0; |
| break; |
| |
| case IPD: |
| if (!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)) |
| return 0; |
| 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 1; |
| } |
| |
| 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 WORD32 ixheaacd_attach_lsb(ia_handle_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 0; |
| } |
| |
| WORD32 ixheaacd_mps_ecdatapairdec(ia_handle_bit_buf_struct it_bit_buff, |
| WORD32 outdata[][MAXBANDS], |
| WORD32 history[MAXBANDS], WORD32 data_type, |
| WORD32 set_idx, WORD32 data_bands, |
| WORD32 pair_flag, WORD32 coarse_flag, |
| WORD32 independency_flag) |
| |
| { |
| WORD32 diff_time_back_flag = !independency_flag || (set_idx > 0); |
| 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; |
| |
| 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; |
| |
| default: |
| fprintf(stderr, "Unknown type of data!\n"); |
| return 0; |
| } |
| |
| data = ixheaacd_read_bits_buf(it_bit_buff, 1); |
| pcm_coding_flag = data; |
| |
| pilot_coding_flag = 0; |
| |
| 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; |
| } |
| |
| if (!ixheaacd_mps_pcm_decode(it_bit_buff, data_array[0], data_array[1], |
| quant_offset, pcm_val, quant_levels)) |
| return 0; |
| |
| } 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 (!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)) { |
| return 0; |
| } |
| |
| 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 1; |
| } |
| |
| WORD32 ixheaacd_mps_huff_decode(ia_handle_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) { |
| if (!ixheaacd_mps_huff_read_2d( |
| it_bit_buff, (ia_huff_node_struct)&ixheaacd_huff_reshape_nodes, |
| rl_data, &dummy)) |
| return 0; |
| 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 1; |
| } |
