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libxaac-enc/decoder/ixheaacd_mps_dec.c
Ramesh Katuri 28a1411d72 DO NOT MERGE Fix for stack-buffer-overflow in mps module 
While parsing the input stream in mps_pre_matrix function,
there was an error.This error was not handled properly,
because of which further values which are read from bit stream
are getting wrong values.

We use these value in iteration in ixheaacd_mps_getstridemap()
which is causing stack-buffer-overflow

Bug:112857941
Test: poc+ASAN
Change-Id: I9549b06e0e4e362f517869aef75d579e3e4140a6
2018-08-31 00:07:03 +00:00

1520 lines
44 KiB
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 <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;
}
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