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/******************************************************************************
* *
* Copyright (C) 2023 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 "ixheaac_error_standards.h"
#include "ixheaace_error_codes.h"
#include <string.h>
#include "ixheaac_type_def.h"
#include "ixheaac_constants.h"
#include "impd_drc_common_enc.h"
#include "impd_drc_uni_drc.h"
#include "impd_drc_tables.h"
#include "impd_drc_api.h"
#include "ixheaace_api.h"
#include "ixheaace_aac_constants.h"
#include "ixheaace_psy_const.h"
#include "ixheaace_tns.h"
#include "ixheaace_tns_params.h"
#include "ixheaace_rom.h"
#include "ixheaace_common_rom.h"
#include "ixheaace_bitbuffer.h"
IA_ERRORCODE
ia_enhaacplus_enc_get_tns_param(
ixheaace_temporal_noise_shaping_config_tabulated *pstr_tns_config_tab, WORD32 bit_rate,
WORD32 channels, WORD32 block_type,
const ixheaace_temporal_noise_shaping_info_tab *pstr_tns_info_tab, WORD32 size) {
UWORD32 i;
if (pstr_tns_config_tab == NULL) return 1;
pstr_tns_config_tab->thresh_on = -1;
for (i = 0; i < size / sizeof(ixheaace_temporal_noise_shaping_info_tab); i++) {
if ((bit_rate >= pstr_tns_info_tab[i].bit_rate_from) &&
bit_rate <= pstr_tns_info_tab[i].bit_rate_to) {
switch (block_type) {
case LONG_WINDOW:
switch (channels) {
case NUM_CHANS_MONO:
pstr_tns_config_tab->thresh_on = pstr_tns_info_tab[i].param_mono_long.thresh_on;
pstr_tns_config_tab->lpc_start_freq =
pstr_tns_info_tab[i].param_mono_long.lpc_start_freq;
pstr_tns_config_tab->lpc_stop_freq =
pstr_tns_info_tab[i].param_mono_long.lpc_stop_freq;
pstr_tns_config_tab->tns_time_resolution =
pstr_tns_info_tab[i].param_mono_long.tns_time_resolution;
break;
case NUM_CHANS_STEREO:
pstr_tns_config_tab->thresh_on = pstr_tns_info_tab[i].param_stereo_long.thresh_on;
pstr_tns_config_tab->lpc_start_freq =
pstr_tns_info_tab[i].param_stereo_long.lpc_start_freq;
pstr_tns_config_tab->lpc_stop_freq =
pstr_tns_info_tab[i].param_stereo_long.lpc_stop_freq;
pstr_tns_config_tab->tns_time_resolution =
pstr_tns_info_tab[i].param_stereo_long.tns_time_resolution;
break;
}
break;
case SHORT_WINDOW:
switch (channels) {
case NUM_CHANS_MONO:
pstr_tns_config_tab->thresh_on = pstr_tns_info_tab[i].param_mono_short.thresh_on;
pstr_tns_config_tab->lpc_start_freq =
pstr_tns_info_tab[i].param_mono_short.lpc_start_freq;
pstr_tns_config_tab->lpc_stop_freq =
pstr_tns_info_tab[i].param_mono_short.lpc_stop_freq;
pstr_tns_config_tab->tns_time_resolution =
pstr_tns_info_tab[i].param_mono_short.tns_time_resolution;
break;
case NUM_CHANS_STEREO:
pstr_tns_config_tab->thresh_on = pstr_tns_info_tab[i].param_stereo_short.thresh_on;
pstr_tns_config_tab->lpc_start_freq =
pstr_tns_info_tab[i].param_stereo_short.lpc_start_freq;
pstr_tns_config_tab->lpc_stop_freq =
pstr_tns_info_tab[i].param_stereo_short.lpc_stop_freq;
pstr_tns_config_tab->tns_time_resolution =
pstr_tns_info_tab[i].param_stereo_short.tns_time_resolution;
break;
}
break;
}
}
}
// This check is not being done now
if (pstr_tns_config_tab->thresh_on == -1) {
return IA_EXHEAACE_INIT_FATAL_INVALID_TNS_PARAM;
}
return IA_NO_ERROR;
}
VOID ia_enhaacplus_enc_get_tns_max_bands(
WORD32 sampling_rate, WORD32 block_type, WORD32 *tns_max_sfb,
const ixheaace_temporal_noise_shaping_max_table *pstr_tns_max_bands_tab, WORD32 size,
WORD32 aot, WORD32 frame_length) {
UWORD32 i;
*tns_max_sfb = -1;
for (i = 0; i < size / sizeof(ixheaace_temporal_noise_shaping_max_table); i++) {
if (sampling_rate == pstr_tns_max_bands_tab[i].sampling_rate) {
if (aot == AOT_AAC_LC || aot == AOT_SBR || aot == AOT_PS) {
if (block_type == SHORT_WINDOW) {
*tns_max_sfb = (frame_length == (FRAME_LEN_SHORT_128))
? pstr_tns_max_bands_tab[i].max_band_1024_short_lc
: pstr_tns_max_bands_tab[i].max_band_960_short_lc;
} else {
*tns_max_sfb = (frame_length == FRAME_LEN_1024)
? pstr_tns_max_bands_tab[i].max_band_1024_long_lc
: pstr_tns_max_bands_tab[i].max_band_960_long_lc;
}
} else if (aot == AOT_AAC_LD || aot == AOT_AAC_ELD) {
*tns_max_sfb = (frame_length == FRAME_LEN_512)
? pstr_tns_max_bands_tab[i].max_band_512_ld
: pstr_tns_max_bands_tab[i].max_band_480_ld;
}
break;
}
}
}
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