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android13/external/libxaac/decoder/ixheaacd_mps_dec.c

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/******************************************************************************
* *
* 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 <math.h>
#include <assert.h>
#include <string.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 "ixheaacd_error_standards.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_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 != 0) return err_code;
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]);
err_code = ixheaacd_mps_decor_init(&(self->mps_decor), self->hyb_band_count,
self->config->bs_decorr_config);
if (err_code != IA_NO_ERROR) 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));
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) {
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;
err = ixheaacd_mps_frame_decode(self);
if (err != 0) return err;
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 VOID 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;
}
static VOID 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;
}
static VOID 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;
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_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;
}
static VOID 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;
}
static VOID ixheaacd_mps_huff_dec_pilot(ia_handle_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_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) {
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_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) {
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_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) {
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 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};
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_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};
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_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};
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 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) {
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;
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) {
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;
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;
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;
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 VOID 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;
}
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 -1;
}
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;
}
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) return -1;
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 IA_NO_ERROR;
}
VOID 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) {
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;
}
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