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 IXHEAACD_QMF_POLY_H
21 #define IXHEAACD_QMF_POLY_H
22 
23 double *ixheaacd_interpo_esbr_fcoff(const double *orig_prot, WORD32 no,
24                                     WORD32 lo, WORD32 li);
25 
26 WORD32 ixheaacd_complex_anal_filt(ia_esbr_hbe_txposer_struct *ptr_hbe_txposer);
27 
28 WORD32 ixheaacd_real_synth_filt(ia_esbr_hbe_txposer_struct *ptr_hbe_txposer,
29                                 WORD32 num_columns, FLOAT32 qmf_buf_real[][64],
30                                 FLOAT32 qmf_buf_imag[][64]);
31 
32 VOID ixheaacd_cmplx_anal_fft_p2(FLOAT32 *inp, FLOAT32 *out, WORD32 n_points);
33 
34 VOID ixheaacd_cmplx_anal_fft_p3(FLOAT32 *inp, FLOAT32 *out, WORD32 n_points);
35 
36 VOID ixheaacd_real_synth_fft_p2(FLOAT32 *inp, FLOAT32 *out, WORD32 n_points);
37 
38 VOID ixheaacd_real_synth_fft_p3(FLOAT32 *inp, FLOAT32 *out, WORD32 n_points);
39 
40 VOID (*ixheaacd_real_synth_fft)(FLOAT32 *inp, FLOAT32 *out, WORD32 n_points);
41 
42 VOID (*ixheaacd_cmplx_anal_fft)(FLOAT32 *inp, FLOAT32 *out, WORD32 n_points);
43 
44 #endif
45