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
24extern "C" {
25#endif
26
27typedef struct {
28  WORD32 multiband_audio_sig_count;
29  WORD32 frame_size;
30  FLOAT32** non_interleaved_audio;
31} ia_audio_band_buffer_struct;
32
33typedef 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
48WORD32
49impd_apply_gains_subband(ia_drc_instructions_struct* pstr_drc_instruction_arr,
50                         const WORD32 drc_instructions_index,
51                         ia_drc_params_struct* ia_drc_params_struct,
52                         ia_gain_buffer_struct* pstr_gain_buf,
53                         ia_overlap_params_struct* pstr_overlap_params,
54                         FLOAT32* deinterleaved_audio_delayed_re[],
55                         FLOAT32* deinterleaved_audio_delayed_im[],
56                         FLOAT32* deinterleaved_audio_re[],
57                         FLOAT32* deinterleaved_audio_im[]);
58
59WORD32
60impd_filter_banks_process(ia_drc_instructions_struct* pstr_drc_instruction_arr,
61                          const WORD32 drc_instructions_index,
62                          ia_drc_params_struct* ia_drc_params_struct,
63                          FLOAT32* audio_io_buf[],
64                          ia_audio_band_buffer_struct* audio_band_buffer,
65                          ia_filter_banks_struct* ia_filter_banks_struct,
66                          const WORD32 passThru);
67
68WORD32
69impd_store_audio_io_buffer_time(FLOAT32* audio_in_out_buf[],
70                                ia_audio_in_out_buf* audio_io_buf_internal);
71
72WORD32
73impd_store_audio_io_buffer_freq(FLOAT32* audio_real_buff[],
74                                FLOAT32* audio_imag_buff[],
75                                ia_audio_in_out_buf* audio_io_buf_internal);
76
77WORD32
78impd_retrieve_audio_io_buffer_time(FLOAT32* audio_in_out_buf[],
79                                   ia_audio_in_out_buf* audio_io_buf_internal);
80
81WORD32
82impd_retrieve_audio_buffer_freq(FLOAT32* audio_real_buff[],
83                                FLOAT32* audio_imag_buff[],
84                                ia_audio_in_out_buf* audio_io_buf_internal);
85
86WORD32
87impd_advance_audio_io_buffer_time(ia_audio_in_out_buf* audio_io_buf_internal);
88
89WORD32
90impd_advance_audio_buff_freq(ia_audio_in_out_buf* audio_io_buf_internal);
91
92#ifdef __cplusplus
93}
94#endif
95#endif
96