088122e748
* Combined Workspace for Encoder and Decoder * Addressed review comments and some minor edits --------- Co-authored-by: Divya B M <100655@ittiam.com>
102 lines
3.4 KiB
C
102 lines
3.4 KiB
C
/******************************************************************************
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* *
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* Copyright (C) 2023 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*****************************************************************************
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* Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore
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*/
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#pragma once
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#define TEMPORAL_NOISE_SHAPING_MAX_ORDER (12)
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#define TEMPORAL_NOISE_SHAPING_MAX_ORDER_SHORT (5)
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#define TEMPORAL_NOISE_SHAPING_START_FREQ (1275)
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#define TEMPORAL_NOISE_SHAPING_START_FREQ_SHORT (2750)
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#define TEMPORAL_NOISE_SHAPING_COEF_RES (4)
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#define TEMPORAL_NOISE_SHAPING_COEF_RES_SHORT (3)
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#define FILTER_DIRECTION (0)
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#define PI_BY_1000 (0.00314159265358979323f)
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#define TEMPORAL_NOISE_SHAPING_MODIFY_BEGIN 2600 /* Hz */
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#define RATIO_PATCH_LOWER_BORDER 380 /* Hz */
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#define INT_BITS 32
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typedef struct {
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WORD32 channel_bit_rate;
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WORD32 bandwidth_mono;
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WORD32 bandwidth_stereo;
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} ixheaace_bandwidth_table;
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typedef struct {
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FLOAT32 thresh_on;
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WORD32 lpc_start_freq;
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WORD32 lpc_stop_freq;
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FLOAT32 tns_time_resolution;
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} ixheaace_temporal_noise_shaping_config_tabulated;
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typedef struct {
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WORD8 tns_active;
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WORD32 tns_max_sfb;
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WORD32 max_order;
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WORD32 tns_start_freq;
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WORD32 coef_res;
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ixheaace_temporal_noise_shaping_config_tabulated conf_tab;
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FLOAT32 acf_window_float[TEMPORAL_NOISE_SHAPING_MAX_ORDER + 1];
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WORD32 tns_start_band;
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WORD32 tns_start_line;
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WORD32 tns_stop_band;
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WORD32 tns_stop_line;
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WORD32 lpc_start_band;
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WORD32 lpc_start_line;
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WORD32 lpc_stop_band;
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WORD32 lpc_stop_line;
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WORD32 tns_ratio_patch_lowest_cb;
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WORD32 tns_modify_begin_cb;
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FLOAT32 threshold;
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} ixheaace_temporal_noise_shaping_config;
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typedef struct {
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WORD8 tns_active;
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FLOAT32 parcor[TEMPORAL_NOISE_SHAPING_MAX_ORDER];
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FLOAT32 prediction_gain;
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} ixheaace_temporal_noise_shaping_subblock_info_long;
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typedef struct {
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WORD8 tns_active;
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FLOAT32 parcor[TEMPORAL_NOISE_SHAPING_MAX_ORDER];
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FLOAT32 prediction_gain;
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} ixheaace_temporal_noise_shaping_subblock_info_short;
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typedef struct {
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ixheaace_temporal_noise_shaping_subblock_info_short sub_block_info[TRANS_FAC];
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} ixheaace_temporal_noise_shaping_data_short;
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typedef struct {
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ixheaace_temporal_noise_shaping_subblock_info_long sub_block_info;
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} ixheaace_temporal_noise_shaping_data_long;
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typedef struct {
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ixheaace_temporal_noise_shaping_data_long tns_data_long;
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ixheaace_temporal_noise_shaping_data_short tns_data_short;
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} ixheaace_temporal_noise_shaping_data_raw;
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typedef struct {
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WORD32 numOfSubblocks;
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ixheaace_temporal_noise_shaping_data_raw data_raw;
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} ixheaace_temporal_noise_shaping_data;
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typedef struct {
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WORD8 tns_active[TRANS_FAC];
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WORD8 coef_res[TRANS_FAC];
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WORD32 length[TRANS_FAC];
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WORD32 order[TRANS_FAC];
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WORD32 coef[TRANS_FAC * TEMPORAL_NOISE_SHAPING_MAX_ORDER_SHORT];
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} ixheaace_temporal_noise_shaping_params;
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