xref: /aosp_15_r20/external/libxaac/encoder/iusace_block_switch_struct_def.h (revision 15dc779a375ca8b5125643b829a8aa4b70d7f451)
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 typedef struct {
23   FLOAT32 inv_attack_ratio;
24   WORD32 window_seq;
25   WORD32 next_win_seq;
26   WORD32 attack;
27   WORD32 lastattack;
28   WORD32 attack_idx;
29   WORD32 last_attack_idx;
30 
31   WORD32 tot_grps_cnt;
32   WORD32 group_len[TRANS_FAC];
33 
34   FLOAT32 win_energy[2][BLK_SWITCH_WIN];
35   FLOAT32 win_energy_filt[2][BLK_SWITCH_WIN];
36   FLOAT32 iir_states[BLK_SWITCH_FILT_LEN];
37   FLOAT32 max_win_energy;
38   FLOAT32 acc_win_energy;
39 } ia_block_switch_ctrl;
40