/****************************************************************************** * * * 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 IXHEAACE_SBR_HF_ADJ_OFFSET (2) #define IXHEAACE_ESBR_HBE_DELAY_OFFSET (32) #define IXHEAACE_TIMESLOT_BUFFER_SIZE (78) #define IXHEAACE_MAX_NUM_PATCHES (6) #define IXHEAACE_MAX_STRETCH (4) #define IXHEAACE_MAX_NUM_LIMITERS (12) #define IXHEAACE_MAX_FREQ_COEFFS (56) #define IXHEAACE_MAX_NOISE_COEFFS (5) #define IXHEAACE_HBE_OPER_WIN_LEN (13) #define IXHEAACE_NUM_QMF_SYNTH_CHANNELS (64) #define IXHEAACE_TWICE_QMF_SYNTH_CH_NUM (128) #define IXHEAACE_HBE_ZERO_BAND_IDX (6) #define IXHEAACE_HBE_OPER_BLK_LEN_2 (10) #define IXHEAACE_HBE_OPER_BLK_LEN_3 (8) #define IXHEAACE_HBE_OPER_BLK_LEN_4 (6) #define IXHEAACE_FD_OVERSAMPLING_FAC (1.5f) #define IXHEAACE_MAX_NO_COLS_VALUE (64) #define IXHEAACE_MAX_FRAME_SIZE (1024) #define IXHEAACE_MAX_NUM_SAMPLES (4096) #define IXHEAACE_MAX_QMF_X_INBUF_SIZE (IXHEAACE_MAX_NO_COLS_VALUE) #define IXHEAACE_MAX_QMF_X_OUTBUF_SIZE (2 * IXHEAACE_MAX_QMF_X_INBUF_SIZE) #define IXHEAACE_MAX_QMF_X_IN_REAL_BUF \ (IXHEAACE_NUM_QMF_SYNTH_CHANNELS * IXHEAACE_MAX_QMF_X_INBUF_SIZE) #define IXHEAACE_MAX_QMF_X_IN_IMAG_BUF \ (IXHEAACE_NUM_QMF_SYNTH_CHANNELS * IXHEAACE_MAX_QMF_X_INBUF_SIZE) #define IXHEAACE_MAX_QMF_X_OUT_REAL_BUF \ (IXHEAACE_NUM_QMF_SYNTH_CHANNELS * IXHEAACE_MAX_QMF_X_OUTBUF_SIZE) #define IXHEAACE_MAX_QMF_X_OUT_IMAG_BUF \ (IXHEAACE_NUM_QMF_SYNTH_CHANNELS * IXHEAACE_MAX_QMF_X_OUTBUF_SIZE) #define IXHEAACE_X_INBUF_SIZE (IXHEAACE_MAX_FRAME_SIZE + IXHEAACE_NUM_QMF_SYNTH_CHANNELS) #define IXHEAACE_X_OUTBUF_SIZE (IXHEAACE_X_INBUF_SIZE * 2) #define IXHEAACE_MAX_HBE_PERSISTENT_SIZE \ (IXHEAACE_MAX_QMF_X_INBUF_SIZE * sizeof(FLOAT32 *) + \ IXHEAACE_MAX_QMF_X_OUTBUF_SIZE * sizeof(FLOAT32 *) + \ IXHEAACE_MAX_QMF_X_IN_REAL_BUF * sizeof(FLOAT32) + \ IXHEAACE_MAX_QMF_X_IN_IMAG_BUF * sizeof(FLOAT32) + \ IXHEAACE_MAX_QMF_X_OUT_REAL_BUF * sizeof(FLOAT32) + \ IXHEAACE_MAX_QMF_X_OUT_IMAG_BUF * sizeof(FLOAT32) + IXHEAACE_X_INBUF_SIZE * sizeof(FLOAT32) + \ IXHEAACE_X_OUTBUF_SIZE * sizeof(FLOAT32)) #define IXHEAACE_LOW (0) #define IXHEAACE_HIGH (1) #define IXHEAACE_SBR_CONST_PMIN 1.0f #define ixheaace_cbrt_calc(a) (pow(a, -0.333333f)) #define IXHEAACE_QMF_FILTER_STATE_ANA_SIZE 320 typedef struct { FLOAT32 real[64][128]; FLOAT32 imag[64][128]; } ixheaace_str_dft_hbe_anal_coeff; typedef struct { WORD32 x_over_qmf[IXHEAACE_MAX_NUM_PATCHES]; WORD32 max_stretch; WORD32 core_frame_length; WORD32 hbe_qmf_in_len; WORD32 hbe_qmf_out_len; WORD32 no_bins; WORD32 start_band; WORD32 end_band; WORD32 upsamp_4_flag; WORD32 synth_buf_offset; WORD16 num_sf_bands[2]; WORD16 *ptr_freq_band_tab[2]; WORD16 freq_band_tbl_lo[IXHEAACE_MAX_FREQ_COEFFS / 2 + 1]; WORD16 freq_band_tbl_hi[IXHEAACE_MAX_FREQ_COEFFS + 1]; FLOAT32 *ptr_input_buf; FLOAT32 qmf_in_buf[IXHEAACE_TWICE_QMF_SYNTH_CH_NUM][IXHEAACE_TWICE_QMF_SYNTH_CH_NUM]; FLOAT32 qmf_out_buf[IXHEAACE_TWICE_QMF_SYNTH_CH_NUM][IXHEAACE_TWICE_QMF_SYNTH_CH_NUM]; WORD32 k_start; WORD32 synth_size; FLOAT32 synth_buf[1280]; FLOAT32 analy_buf[640]; FLOAT32 *ptr_syn_win_coeff; FLOAT32 *ptr_ana_win_coeff; FLOAT32 *ptr_syn_cos_tab; FLOAT32 *ptr_analy_cos_sin_tab; VOID (*ixheaace_real_synth_fft)(FLOAT32 *ptr_inp, FLOAT32 *ptr_out, WORD32 n_points); FLOAT32 norm_qmf_in_buf[128][128]; VOID (*ixheaace_cmplx_anal_fft)(FLOAT32 *ptr_inp, FLOAT32 *ptr_out, WORD32 n_points); WORD32 esbr_hq; WORD32 in_hop_size; WORD32 fft_size[2]; FLOAT32 *ptr_ana_win; /* Phase Vocoder Analysis Window for FFT */ FLOAT32 *ptr_syn_win; /* Phase Vocoder Synthesis Window for OLA */ FLOAT32 *ptr_spectrum; /* FFT values in cartesian space */ FLOAT32 *ptr_spectrum_tx; /* Transposed spectrum */ FLOAT32 *ptr_mag; /* FFT magnitudes */ FLOAT32 *ptr_phase; /* FFT angles */ FLOAT32 *ptr_output_buf; WORD32 ana_fft_size[2]; /* Analysis FFT length */ WORD32 syn_fft_size[2]; /* Synthesis FFT length */ WORD32 out_hop_size; WORD32 analy_size; WORD32 x_over_bin[IXHEAACE_MAX_STRETCH][2]; WORD32 a_start; FLOAT32 spectrum_buf[1536]; /* FFT values in cartesian space */ FLOAT32 spectrum_transposed_buf[1536]; /* Transposed spectrum */ FLOAT32 mag_buf[1536]; /* FFT magnitudes */ FLOAT32 phase_buf[1536]; /* FFT angles */ FLOAT32 output_buf[IXHEAACE_MAX_NUM_SAMPLES]; FLOAT32 fd_win_buf[3][3][1536]; FLOAT32 analysis_window_buf[1024]; FLOAT32 synthesis_window_buf[1024]; WORD32 oversampling_flag; ixheaace_str_dft_hbe_anal_coeff str_dft_hbe_anal_coeff; VOID (*ixheaace_hbe_anal_fft)(FLOAT32 *ptr_inp, FLOAT32 *ptr_scratch, WORD32 len, WORD32 sign); VOID(*ixheaace_hbe_synth_ifft) (FLOAT32 *ptr_inp, FLOAT32 *ptr_scratch, WORD32 len, WORD32 sign); FLOAT32 *ptr_syn_cos_sin_tab; FLOAT32 *ptr_ana_cos_sin_tab; } ixheaace_str_esbr_hbe_txposer; typedef struct { WORD16 w_16[2 * 12]; FLOAT32 dig_rev_tab_4_16[2]; FLOAT32 esbr_qmf_c[1280]; FLOAT32 esbr_qmf_c_24[480]; FLOAT32 esbr_w_16[2 * 12]; FLOAT32 esbr_sin_cos_twiddle_l64[64]; FLOAT32 esbr_alt_sin_twiddle_l64[32]; FLOAT32 esbr_sin_cos_twiddle_l32[32]; FLOAT32 esbr_alt_sin_twiddle_l32[16]; FLOAT32 esbr_t_cos_sin_l32[32 + 32]; FLOAT32 esbr_sin_cos_twiddle_l24[24]; FLOAT32 esbr_alt_sin_twiddle_l24[12]; FLOAT32 esbr_t_cos_sin_l24[24 + 24]; FLOAT32 esbr_sin_cos_twiddle_l16[16]; FLOAT32 esbr_alt_sin_twiddle_l16[8]; FLOAT32 esbr_t_cos_sin_l16[16 + 16]; } ixheaace_str_qmf_dec_tabs_struct; typedef struct { WORD32 no_channels; WORD16 num_time_slots; WORD16 lsb; WORD16 usb; const FLOAT32 *ptr_ana_win_coeff_32; const FLOAT32 *ptr_esbr_cos_twiddle; const FLOAT32 *ptr_esbr_alt_sin_twiddle; const FLOAT32 *ptr_esbr_t_cos; FLOAT32 anal_filter_states_32[IXHEAACE_QMF_FILTER_STATE_ANA_SIZE]; FLOAT32 *ptr_state_new_samples_pos_low_32; const FLOAT32 *ptr_filter_pos_32; ixheaace_str_qmf_dec_tabs_struct *pstr_qmf_dec_tabs; } ia_sbr_qmf_filter_bank_struct; typedef struct { ixheaace_str_esbr_hbe_txposer *pstr_hbe_txposer; VOID *ptr_hbe_txposer_buffers; FLOAT32 ph_vocod_qmf_real[IXHEAACE_TIMESLOT_BUFFER_SIZE][IXHEAACE_NUM_QMF_SYNTH_CHANNELS]; FLOAT32 ph_vocod_qmf_imag[IXHEAACE_TIMESLOT_BUFFER_SIZE][IXHEAACE_NUM_QMF_SYNTH_CHANNELS]; FLOAT32 sbr_qmf_out_real[IXHEAACE_TIMESLOT_BUFFER_SIZE][IXHEAACE_NUM_QMF_SYNTH_CHANNELS]; FLOAT32 sbr_qmf_out_imag[IXHEAACE_TIMESLOT_BUFFER_SIZE][IXHEAACE_NUM_QMF_SYNTH_CHANNELS]; FLOAT32 qmf_buf_real[IXHEAACE_TIMESLOT_BUFFER_SIZE + 2 * 32][IXHEAACE_NUM_QMF_SYNTH_CHANNELS]; FLOAT32 qmf_buf_imag[IXHEAACE_TIMESLOT_BUFFER_SIZE + 2 * 32][IXHEAACE_NUM_QMF_SYNTH_CHANNELS]; ia_sbr_qmf_filter_bank_struct str_codec_qmf_bank; } ixheaace_str_hbe_enc; extern const ixheaace_str_qmf_dec_tabs_struct ixheaace_str_aac_qmf_tabs; VOID iusace_complex_fft_p2(FLOAT32 *ptr_x, WORD32 nlength, FLOAT32 *ptr_scratch_fft_p2_y); VOID iusace_complex_fft_p3_no_scratch(FLOAT32 *ptr_data, WORD32 nlength); VOID ixheaace_esbr_hbe_data_init(ixheaace_str_esbr_hbe_txposer *pstr_esbr_hbe_txposer, const WORD32 num_aac_samples, WORD32 samp_fac_4_flag, const WORD32 num_out_samples, VOID *ptr_persistent_hbe_mem, WORD32 *ptr_total_persistant); IA_ERRORCODE ixheaace_dft_hbe_data_reinit(ixheaace_str_esbr_hbe_txposer *pstr_hbe_txposer); IA_ERRORCODE ixheaace_qmf_hbe_data_reinit(ixheaace_str_esbr_hbe_txposer *pstr_hbe_txposer); IA_ERRORCODE ixheaace_dft_hbe_apply(ixheaace_str_esbr_hbe_txposer *pstr_hbe_txposer, FLOAT32 qmf_buf_real[][64], FLOAT32 qmf_buf_imag[][64], WORD32 num_columns, FLOAT32 pv_qmf_buf_real[][64], FLOAT32 pv_qmf_buf_imag[][64], WORD32 pitch_in_bins, FLOAT32 *ptr_dft_hbe_scratch_buf); IA_ERRORCODE ixheaace_qmf_hbe_apply(ixheaace_str_esbr_hbe_txposer *pstr_hbe_txposer, FLOAT32 qmf_buf_real[][64], FLOAT32 qmf_buf_imag[][64], WORD32 num_columns, FLOAT32 pv_qmf_buf_real[][64], FLOAT32 pv_qmf_buf_imag[][64], WORD32 pitch_in_bins); IA_ERRORCODE ixheaace_hbe_post_anal_process(ixheaace_str_esbr_hbe_txposer *pstr_hbe_txposer, WORD32 pitch_in_bins, WORD32 sbr_upsamp_4_flg); VOID ixheaace_hbe_repl_spec(WORD32 x_over_qmf[IXHEAACE_MAX_NUM_PATCHES], FLOAT32 qmf_buf_real[][64], FLOAT32 qmf_buf_imag[][64], WORD32 no_bins, WORD32 max_stretch); VOID ixheaace_esbr_qmf_init(ia_sbr_qmf_filter_bank_struct *pstr_codec_qmf_bank, WORD32 sbr_ratio_idx, WORD32 output_frame_size); VOID ixheaace_esbr_analysis_filt_block( ia_sbr_qmf_filter_bank_struct *pstr_codec_qmf_bank, ixheaace_str_qmf_dec_tabs_struct *pstr_qmf_dec_tabs, FLOAT32 *ptr_core_coder_samples, FLOAT32 qmf_buf_real[IXHEAACE_TIMESLOT_BUFFER_SIZE + 2 * 32][IXHEAACE_NUM_QMF_SYNTH_CHANNELS], FLOAT32 qmf_buf_imag[IXHEAACE_TIMESLOT_BUFFER_SIZE + 2 * 32][IXHEAACE_NUM_QMF_SYNTH_CHANNELS], WORD32 op_delay);