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      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_WINDOWS_H
     21 #define IXHEAACD_WINDOWS_H
     22 
     23 extern const WORD32 ixheaacd_sine_win_128[128];
     24 extern const WORD32 ixheaacd_sine_win_1024[1024];
     25 extern const WORD32 ixheaacd_sine_win_64[64];
     26 extern const WORD32 ixheaacd_sine_win_768[768];
     27 extern const WORD32 ixheaacd_sine_win_192[192];
     28 extern const WORD32 ixheaacd_sine_win_96[96];
     29 extern const WORD32 ixheaacd_sine_win_256[256];
     30 extern const WORD32 ixheaacd_kbd_win120[120];
     31 extern const WORD32 ixheaacd_kbd_win128[128];
     32 extern const WORD32 ixheaacd_kbd_win960[960];
     33 extern const WORD32 ixheaacd_kbd_win1024[1024];
     34 extern const WORD32 kbd_win256[256];
     35 extern const WORD32 ixheaacd_kbd_win4[4];
     36 extern const WORD32 ixheaacd_kbd_win16[16];
     37 extern const WORD32 ixheaacd_kbd_win_64[64];
     38 extern const WORD32 ixheaacd_kbd_win768[768];
     39 extern const WORD32 ixheaacd_kbd_win192[192];
     40 extern const WORD32 ixheaacd_kbd_win96[96];
     41 extern const WORD32 ixheaacd_kbd_win48[48];
     42 
     43 extern const FLOAT32 ixheaacd_sine_window96[96];
     44 extern const FLOAT32 ixheaacd_sine_window128[128];
     45 extern const FLOAT32 ixheaacd_sine_window192[192];
     46 extern const FLOAT32 ixheaacd__sine_window256[256];
     47 
     48 WORD32 ixheaacd_calc_window(WORD32 **win, WORD32 len, WORD32 wfun_select);
     49 
     50 void ixheaacd_acelp_imdct(WORD32 *imdct_in, WORD32 npoints, WORD8 *qshift,
     51                           WORD32 *scratch);
     52 
     53 typedef struct {
     54   WORD32 lfac;
     55   WORD32 n_flat_ls;
     56   WORD32 n_trans_ls;
     57   WORD32 n_long;
     58   WORD32 n_short;
     59 
     60 } offset_lengths;
     61 
     62 #endif
     63