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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_INFO_H
     21 #define IXHEAACD_INFO_H
     22 
     23 #define chans 51
     24 
     25 #define EXT_SBR_DATA 13
     26 
     27 typedef struct {
     28   WORD32 samp_rate;
     29   WORD32 num_sfb_1024;
     30   const WORD16 *ptr_sfb_1024;
     31   WORD32 num_sfb_128;
     32   const WORD16 *ptr_sfb_128;
     33   WORD32 num_sfb_960;
     34   const WORD16 *ptr_sfb_960;
     35   WORD32 num_sfb_120;
     36   const WORD16 *ptr_sfb_120;
     37   WORD32 num_sfb_768;
     38   const WORD16 *ptr_sfb_768;
     39   WORD32 num_sfb_96;
     40   const WORD16 *ptr_sfb_96;
     41   WORD32 short_fss_width;
     42   WORD32 long_fss_groups;
     43   WORD32 num_sfb_480;
     44   const WORD16 *ptr_sfb_480;
     45   WORD32 num_sfb_512;
     46   const WORD16 *ptr_sfb_512;
     47 } ia_usac_samp_rate_info;
     48 
     49 typedef struct {
     50   WORD32 index;
     51   WORD32 len;
     52   UWORD32 code_word;
     53 } ia_huff_code_word_struct;
     54 
     55 typedef struct {
     56   WORD32 num;
     57   WORD32 dim;
     58   WORD32 lav;
     59   WORD32 lav_incr_esc;
     60   WORD32 huff_mode;
     61   WORD32 off;
     62   WORD32 sign_code_book;
     63   UWORD16 max_code_word_len;
     64   ia_huff_code_word_struct *pstr_huff_code_word;
     65   WORD16 *code_book_tbl;
     66   WORD32 *idx_tbl;
     67 } ia_huff_code_book_struct;
     68 
     69 typedef struct {
     70   WORD32 num_ele;
     71   WORD32 ele_is_cpe[(1 << LEN_TAG)];
     72   WORD32 ele_tag[(1 << LEN_TAG)];
     73 } ia_ele_list_struct;
     74 
     75 typedef struct {
     76   WORD32 present;
     77   WORD32 ele_tag;
     78   WORD32 pseudo_enab;
     79 } ia_mix_dwn_struct;
     80 
     81 typedef struct {
     82   WORD32 tag;
     83   WORD32 profile;
     84   WORD32 sampling_rate_idx;
     85   ia_ele_list_struct front;
     86   ia_ele_list_struct side;
     87   ia_ele_list_struct back;
     88   ia_ele_list_struct lfe;
     89   ia_ele_list_struct data;
     90   ia_ele_list_struct coupling;
     91   ia_mix_dwn_struct mono_mix;
     92   ia_mix_dwn_struct stereo_mix;
     93   ia_mix_dwn_struct matrix_mix;
     94   WORD8 comments[(1 << LEN_PC_COMM) + 1];
     95   WORD32 buffer_fullness;
     96 } ia_prog_config_struct;
     97 
     98 extern ia_huff_code_book_struct ixheaacd_book;
     99 
    100 VOID ixheaacd_hufftab(ia_huff_code_book_struct *ptr_huff_code_book,
    101                       ia_huff_code_word_struct *ptr_huff_code_word,
    102                       WORD16 *code_book_tbl, WORD32 *index, WORD32 dim,
    103                       WORD32 lav, WORD32 lav_incr_esc, WORD32 sign_code_book,
    104                       UWORD8 max_code_word_len);
    105 
    106 WORD32 ixheaacd_huff_codeword(ia_huff_code_word_struct *h, UWORD16 data_present,
    107                               ia_bit_buf_struct *it_bit_buff);
    108 
    109 #endif /* IXHEAACD_INFO_H */
    110