/****************************************************************************** * * * 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[5]; 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) 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];