215 lines
8.3 KiB
C
215 lines
8.3 KiB
C
/******************************************************************************
|
|
* *
|
|
* 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
|
|
*/
|
|
|
|
#pragma once
|
|
#define AACENC_MAX_CHANNELS 2 /* encoder max channels */
|
|
#define AACENC_TRANS_FAC 8 /* encoder WORD16 long ratio */
|
|
#define AACENC_PCM_LEVEL 1.0 /* encoder pcm 0db refernence */
|
|
|
|
#define LD_FFT_TWIDDLE_TABLE_SIZE 9
|
|
#define FFT_TWIDDLE_TABLE_SIZE (1 << LD_FFT_TWIDDLE_TABLE_SIZE)
|
|
|
|
/*MDCT Tables*/
|
|
typedef struct {
|
|
UWORD8 re_arr_tab_16[240];
|
|
UWORD8 re_arr_tab_sml_240[240];
|
|
const FLOAT32 cosine_array_960[480];
|
|
WORD32 dig_rev_tab_16[2];
|
|
WORD16 w_16[24];
|
|
const FLOAT32 cosine_array_1024[512];
|
|
const WORD16 w_256[512];
|
|
const WORD32 dig_rev_table_512[32];
|
|
const FLOAT32 win_512_ld[1920];
|
|
const FLOAT32 win_480_ld[1800];
|
|
} ixheaace_mdct_tables;
|
|
extern const ixheaace_mdct_tables ixheaace_enc_mdct_tab;
|
|
|
|
/*Huffman Tables*/
|
|
typedef struct {
|
|
const UWORD16 huff_ltab1_2[3][3][3][3];
|
|
const UWORD16 huff_ltab3_4[3][3][3][3];
|
|
const UWORD16 huff_ltab5_6[9][27];
|
|
const UWORD16 huff_ltab7_8[8][27];
|
|
const UWORD16 huff_ltab9_10[13][27];
|
|
const UWORD16 huff_ltab11[17][27];
|
|
const UWORD16 huff_ltabscf[121];
|
|
const UWORD16 huff_ctab1[3][3][3][3];
|
|
const UWORD16 huff_ctab2[3][3][3][3];
|
|
const UWORD16 huff_ctab3[3][3][3][3];
|
|
const UWORD16 huff_ctab4[3][3][3][3];
|
|
const UWORD16 huff_ctab5[9][9];
|
|
const UWORD16 huff_ctab6[9][9];
|
|
const UWORD16 huff_ctab7[8][8];
|
|
const UWORD16 huff_ctab8[8][8];
|
|
const UWORD16 huff_ctab9[13][13];
|
|
const UWORD16 huff_ctab10[13][13];
|
|
const UWORD16 huff_ctab11[17][17];
|
|
const UWORD32 huff_ctabscf[121];
|
|
} ixheaace_huffman_tables;
|
|
|
|
extern const ixheaace_huffman_tables ixheaace_enc_huff_tab;
|
|
|
|
typedef struct {
|
|
WORD32 sample_rate;
|
|
const UWORD8 param_long[MAXIMUM_SCALE_FACTOR_BAND_LONG];
|
|
const UWORD8 param_short[MAXIMUM_SCALE_FACTOR_BAND_SHORT];
|
|
const UWORD8 param_long_960[MAXIMUM_SCALE_FACTOR_BAND_LONG];
|
|
const UWORD8 param_short_120[1 + MAXIMUM_SCALE_FACTOR_BAND_SHORT];
|
|
const UWORD8 param_long_512_ld[MAXIMUM_SCALE_FACTOR_BAND_LONG];
|
|
const UWORD8 param_long_480_ld[MAXIMUM_SCALE_FACTOR_BAND_LONG];
|
|
} ixheaace_sfb_info_tab;
|
|
|
|
/*Psychoacostics Tables*/
|
|
typedef struct {
|
|
const FLOAT32 ixheaace_bark_quiet_thr_val[25];
|
|
const WORD32 pow_point_25_Q23[128];
|
|
const WORD32 q_mod_4_inv_pow_point_25_Q32[4];
|
|
const ixheaace_sfb_info_tab sfb_info_tab[12];
|
|
} ixheaace_psycho_tables;
|
|
|
|
extern const ixheaace_psycho_tables ixheaace_enc_psycho_tab;
|
|
|
|
/*Quantizer tables*/
|
|
typedef struct {
|
|
const WORD q_quant_table_E_fix[17];
|
|
const WORD q_inv_quant_table_E_fix[17];
|
|
const WORD32 quant_table_q_Q30[16];
|
|
const WORD32 inv_quant_table_q_Q27[16];
|
|
const WORD32 power_3_by_4_tab[512];
|
|
const WORD32 power_4_by_3_tab_fix[64];
|
|
const WORD16 power_2_n_4_by_3_tab[10];
|
|
} ixheaace_quant_tables;
|
|
|
|
extern const ixheaace_quant_tables ixheaace_enc_quant_tab;
|
|
typedef struct {
|
|
const ixheaace_temporal_noise_shaping_max_table tns_max_bands_table[12];
|
|
const ixheaace_temporal_noise_shaping_info_tab tns_info_tab[6];
|
|
const FLOAT32 tns_coeff_3[8];
|
|
const FLOAT32 tns_coeff_3_borders[8];
|
|
const FLOAT32 tns_coeff_4[16];
|
|
const FLOAT32 tns_coeff_4_borders[16];
|
|
} ixheaace_temporal_noise_shaping_tables;
|
|
|
|
extern const ixheaace_temporal_noise_shaping_tables ixheaace_enhaacplus_enc_tns_tab;
|
|
|
|
typedef struct {
|
|
ixheaace_mdct_tables *pstr_mdct_tab;
|
|
ixheaace_huffman_tables *pstr_huff_tab;
|
|
ixheaace_psycho_tables *pstr_psycho_tab;
|
|
ixheaace_quant_tables *pstr_quant_tab;
|
|
ixheaace_temporal_noise_shaping_tables *pstr_tns_tab;
|
|
} ixheaace_aac_tables;
|
|
|
|
extern ixheaace_aac_tables ixheaace_enc_aac_tab;
|
|
|
|
/***************/
|
|
/*
|
|
input buffer (1ch)
|
|
|
|
|------- 288 --------|--------------- 2048 -------------|
|
|
spectral_band_replication_2core delay Read, SBR, downmix and ds area
|
|
(downsampled)
|
|
*/
|
|
#define CORE_DELAY_LC (1600)
|
|
// LC Delay = (Core-delay LC) * 2 + SBR Decoder Delay - SBR Encoder Delay + Magic
|
|
#define INPUT_DELAY_LC ((CORE_DELAY_LC)*2 + 6 * 64 - 2048 + 1)
|
|
#define CORE_DELAY_LD_512 (512)
|
|
#define INPUT_DELAY_LD_512 ((CORE_DELAY_LD_512)*2 - 1024 + 1)
|
|
// ELD Delay = (Core-delay LD) * 2 + SBR Decoder Delay - SBR Encoder Delay
|
|
#define INPUT_DELAY_ELD_512 ((CORE_DELAY_LD_512)*2 + 0 - (16 * 64))
|
|
// Original ELD delay value retained for multichannel files with MPS
|
|
#define INPUT_DELAY_ELD_512_MPS ((CORE_DELAY_LD_512)*2 + 1)
|
|
#define INPUT_DELAY_ELDV2_512 ((CORE_DELAY_LD_512 * 2) + 128 + 1)
|
|
|
|
#define CORE_DELAY_LD_480 (480)
|
|
#define INPUT_DELAY_LD_480 ((CORE_DELAY_LD_480)*2 - 1024 + 1)
|
|
// ELD Delay = (Core-delay LD / 2) * 2 + SBR Decoder Delay - SBR Encoder Delay
|
|
#define INPUT_DELAY_ELD_480 ((CORE_DELAY_LD_480 / 2) * 2 + 0 - (15 * 64) + 576)
|
|
// Original ELD delay value retained for multichannel files with MPS
|
|
#define INPUT_DELAY_ELD_480_MPS (CORE_DELAY_LD_480 * 2 + 1)
|
|
#define INPUT_DELAY_ELDV2_480 ((CORE_DELAY_LD_480 * 2) + 128 + 1)
|
|
#define CORE_DELAY (1600)
|
|
|
|
/* ((1600 (core codec)*2 (multi rate) + 6 *(spectral_band_replication_ dec delay) -
|
|
* (spectral_band_replication_ enc delay) + magic*/
|
|
#define INPUT_DELAY ((CORE_DELAY)*2 + 6 * 64 - 2048 + 1)
|
|
|
|
/* For 2:1 resampler -> max phase delay * resamp_fac */
|
|
#define MAXIMUM_DS_2_1_FILTER_DELAY (16)
|
|
|
|
/* For 4:1 resampler -> max phase delay * resamp_fac */
|
|
#define MAXIMUM_DS_4_1_FILTER_DELAY (64)
|
|
|
|
/* For 8:1 resampler -> max phase delay * resamp_fac */
|
|
#define MAXIMUM_DS_8_1_FILTER_DELAY (248)
|
|
|
|
/* For 1:3 resampler -> max phase delay * resamp_fac */
|
|
#define MAXIMUM_DS_1_3_FILTER_DELAY (36)
|
|
|
|
#define CC_DELAY_ADJUSTMENT (448)
|
|
#define SBR_2_1_DELAY_ADJUSTMENT (-70)
|
|
#define SBR_4_1_DELAY_ADJUSTMENT (218)
|
|
#define SBR_8_3_DELAY_ADJUSTMENT (-74)
|
|
|
|
extern const FLOAT32 ixheaace_fd_quant_table[257];
|
|
extern const FLOAT32 ixheaace_fd_inv_quant_table[257];
|
|
extern const FLOAT32 ixheaace_pow_4_3_table[64];
|
|
extern const WORD32 ixheaace_huffman_code_table[121][2];
|
|
extern const FLOAT32 long_window_KBD[1024];
|
|
extern const FLOAT32 long_window_sine_960[960];
|
|
extern const FLOAT32 fft_twiddle_tab[FFT_TWIDDLE_TABLE_SIZE + 1];
|
|
extern const FLOAT32 long_window_sine[1024];
|
|
extern const FLOAT32 long_window_sine_ld[512];
|
|
extern const FLOAT32 long_window_sine_ld_480[480];
|
|
extern const FLOAT32 short_window_sine[FRAME_LEN_SHORT_128];
|
|
|
|
extern const FLOAT32 short_window_sine_120[FRAME_LEN_SHORT_120];
|
|
|
|
extern const FLOAT32 iaace_iir_hipass_coeffs[2];
|
|
|
|
extern const WORD32 iaace_suggested_grouping_table[TRANS_FAC][MAXIMUM_NO_OF_GROUPS];
|
|
|
|
extern const WORD32 iaace_synchronized_block_types[4][4];
|
|
extern const FLOAT32 ixheaace_mix_rad_twid_tbl[TRANS_FAC];
|
|
extern const FLOAT32 ixheaace_mix_rad_twid_tbl_h[TRANS_FAC];
|
|
extern const FLOAT32 cos_sin_table_flt[960];
|
|
extern const FLOAT32 ixheaace_fft_mix_rad_twid_tbl_32[(FFT16 - 1) * (FFT2 - 1)];
|
|
extern const FLOAT32 ixheaace_fft_mix_rad_twid_tbl_h_32[(FFT16 - 1) * (FFT2 - 1)];
|
|
extern const FLOAT32 ixheaace_fft_mix_rad_twid_tbl_480[(FFT15 - 1) * (FFT32 - 1)];
|
|
extern const FLOAT32 ixheaace_fft_mix_rad_twid_h_tbl_480[(FFT15 - 1) * (FFT32 - 1)];
|
|
extern const FLOAT32 ixheaace_cosine_array_240[120];
|
|
extern const WORD16 re_arr_tab_5[16];
|
|
extern const WORD16 re_arr_tab_3[16];
|
|
extern const WORD16 re_arr_tab_sml[16];
|
|
extern const WORD16 re_arr_tab_4[60];
|
|
extern const WORD16 re_arr_tab_120[60];
|
|
extern const WORD16 re_arr_tab_15_4[60];
|
|
extern const FLOAT32 low_delay_window_eld[2048];
|
|
extern const ixheaace_bandwidth_table bandwidth_table_lc[9];
|
|
|
|
extern const ixheaace_bandwidth_table bandwidth_table_ld_22050[11];
|
|
|
|
extern const ixheaace_bandwidth_table bandwidth_table_ld_24000[11];
|
|
|
|
extern const ixheaace_bandwidth_table bandwidth_table_ld_32000[11];
|
|
|
|
extern const ixheaace_bandwidth_table bandwidth_table_ld_44100[11];
|
|
|
|
extern const ixheaace_bandwidth_table bandwidth_table_ld_48000[11];
|