1 /****************************************************************************** 2 * * 3 * Copyright (C) 2023 The Android Open Source Project 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ***************************************************************************** 18 * Originally developed and contributed by Ittiam Systems Pvt. Ltd, Bangalore 19 */ 20 21 #pragma once 22 23 #define M_32 (32) 24 #define M_16 (16) 25 #define M_12 (12) 26 #define IXHEAACE_OP_DELAY_OFFSET (6) 27 28 typedef struct { 29 WORD32 pre_transient_info[2]; 30 FLOAT32 *ptr_r_buffer[MAX_QMF_TIME_SLOTS]; 31 FLOAT32 *ptr_i_buffer[MAX_QMF_TIME_SLOTS]; 32 FLOAT32 *ptr_y_buffer[MAX_QMF_TIME_SLOTS * 2]; 33 WORD8 envelope_compensation[MAXIMUM_FREQ_COEFFS]; 34 WORD32 y_buffer_write_offset; 35 WORD32 no_cols; 36 WORD32 no_rows; 37 WORD32 start_index; 38 WORD32 time_slots; 39 WORD32 time_step; 40 WORD32 buffer_flag; 41 WORD32 sbr_ratio_idx; 42 } ixheaace_str_sbr_extr_env; 43 typedef ixheaace_str_sbr_extr_env *ixheaace_pstr_sbr_extract_envelope; 44 45 WORD32 46 ixheaace_create_extract_sbr_envelope(WORD32 ch, 47 ixheaace_pstr_sbr_extract_envelope pstr_sbr_ext_env, 48 WORD32 start_index, WORD32 *ptr_common_buffer2, 49 FLOAT32 *ptr_sbr_env_r_buf, FLOAT32 *ptr_sbr_env_i_buf, 50 WORD32 is_ld_sbr, WORD32 frame_flag_480, 51 ixheaace_sbr_codec_type sbr_codec); 52 53 struct ixheaace_str_sbr_config_data; 54 struct ixheaace_str_sbr_bitstream_data; 55 struct ixheaace_str_enc_channel; 56 struct ixheaace_str_common_data; 57 struct ixheaace_ps_enc; 58 59 VOID iusace_complex_fft_2048(FLOAT32 *ptr_x, FLOAT32 *ptr_scratch_fft); 60 VOID iusace_complex_fft_4096(FLOAT32 *ptr_x_r, FLOAT32 *ptr_x_i, FLOAT32 *ptr_scratch_fft); 61