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_HEADERDECODE_H
21 #define IXHEAACD_HEADERDECODE_H
22 
23 typedef struct {
24   WORD32 bit_stream_type;
25   WORD32 prog_config_present;
26   ia_program_config_struct str_prog_config;
27 } ia_adif_header_struct;
28 
29 WORD32 ixheaacd_aac_headerdecode(
30     ia_exhaacplus_dec_api_struct *p_obj_enhaacplus_dec, UWORD8 *buffer,
31     WORD32 *bytes_consumed,
32     const ia_aac_dec_huffman_tables_struct *ptr_huffmann_tables);
33 
34 ia_aac_decoder_struct *ixheaacd_aac_decoder_init(
35     ia_aac_dec_state_struct *p_state_enhaacplus_dec,
36     ia_aac_dec_sbr_bitstream_struct *ptr_sbr_bitstream, WORD channels,
37     VOID *aac_persistent_mem_v, WORD32 frame_length);
38 
39 VOID ixheaacd_fill_prog_config_slots(
40     ia_aac_dec_state_struct *p_state_enhaacplus_dec);
41 
42 WORD ixheaacd_decode_pce(struct ia_bit_buf_struct *it_bit_buff,
43                          UWORD32 *ui_pce_found_in_hdr,
44                          ia_program_config_struct *pce_t);
45 
46 WORD32 ixheaacd_ga_hdr_dec(ia_aac_dec_state_struct *pstate_aac_dec,
47                            WORD32 header_len, WORD32 *bytes_consumed,
48                            ia_sampling_rate_info_struct *pstr_samp_rate_info,
49                            struct ia_bit_buf_struct *it_bit_buff);
50 
51 WORD32 ixheaacd_latm_audio_mux_element(
52     struct ia_bit_buf_struct *it_bit_buff, ixheaacd_latm_struct *latm_element,
53     ia_aac_dec_state_struct *aac_state_struct,
54     ia_sampling_rate_info_struct *sample_rate_info);
55 
56 WORD32 ixheaacd_get_element_index_tag(
57     ia_exhaacplus_dec_api_struct *p_obj_exhaacplus_dec, WORD ch_idx1,
58     WORD *ch_idx, WORD *channel, WORD *element_index_order, WORD total_elements,
59     WORD8 *element_used, WORD total_channels, ia_drc_dec_struct *pstr_drc_dec,
60     ia_drc_dec_struct *drc_dummy);
61 
62 WORD32 ixheaacd_latm_audio_mux_element(
63     struct ia_bit_buf_struct *it_bit_buff, ixheaacd_latm_struct *latm_element,
64     ia_aac_dec_state_struct *aac_state_struct,
65     ia_sampling_rate_info_struct *ptr_samp_rate_info);
66 
67 VOID ixheaacd_set_sbr_persistent_table_pointer(
68     VOID *sbr_persistent_mem_v, ia_sbr_tables_struct *ptr_sbr_tables,
69     ixheaacd_misc_tables *ptr_common_tables);
70 
71 #endif /* IXHEAACD_HEADERDECODE_H */
72