1 /****************************************************************************** 2 * 3 * Copyright (C) 2018 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 #ifndef IMPD_DRC_PROCESS_AUDIO_H 21 #define IMPD_DRC_PROCESS_AUDIO_H 22 23 #ifdef __cplusplus 24 extern "C" { 25 #endif 26 27 typedef struct { 28 WORD32 multiband_audio_sig_count; 29 WORD32 frame_size; 30 FLOAT32** non_interleaved_audio; 31 } ia_audio_band_buffer_struct; 32 33 typedef struct { 34 WORD32 audio_num_chan; 35 WORD32 frame_size; 36 WORD32 audio_sub_band_count; 37 WORD32 audio_sub_band_frame_size; 38 WORD32 audio_delay_samples; 39 WORD32 audio_delay_sub_band_samples; 40 FLOAT32** audio_io_buffer_delayed; 41 FLOAT32** audio_buffer_delayed_real; 42 FLOAT32** audio_buffer_delayed_imag; 43 FLOAT32** audio_in_out_buf; 44 FLOAT32** audio_real_buff; 45 FLOAT32** audio_imag_buff; 46 } ia_audio_in_out_buf; 47 48 WORD32 49 impd_filter_banks_process(ia_drc_instructions_struct* pstr_drc_instruction_arr, 50 const WORD32 drc_instructions_index, 51 ia_drc_params_struct* ia_drc_params_struct, 52 FLOAT32* audio_io_buf[], 53 ia_audio_band_buffer_struct* audio_band_buffer, 54 ia_filter_banks_struct* ia_filter_banks_struct, 55 const WORD32 passThru); 56 57 WORD32 58 impd_store_audio_io_buffer_time(FLOAT32* audio_in_out_buf[], 59 ia_audio_in_out_buf* audio_io_buf_internal); 60 61 WORD32 62 impd_store_audio_io_buffer_freq(FLOAT32* audio_real_buff[], 63 FLOAT32* audio_imag_buff[], 64 ia_audio_in_out_buf* audio_io_buf_internal); 65 66 WORD32 67 impd_retrieve_audio_io_buffer_time(FLOAT32* audio_in_out_buf[], 68 ia_audio_in_out_buf* audio_io_buf_internal); 69 70 WORD32 71 impd_advance_audio_io_buffer_time(ia_audio_in_out_buf* audio_io_buf_internal); 72 73 74 #ifdef __cplusplus 75 } 76 #endif 77 #endif 78