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_AACDEC_H 21 #define IXHEAACD_AACDEC_H 22 23 #define AAC_DEC_OK IA_ENHAACPLUS_DEC_API_NONFATAL_NO_ERROR 24 25 #define IA_ENHAACPDEC_NUM_MEMTABS (4) 26 #define IA_MPS_DEC_NUM_MEMTABS (4) 27 28 #define FRAME_SIZE 1024 29 30 #define ADTS_BSFORMAT 2 31 #define LOAS_BSFORMAT 3 32 33 typedef struct ia_aac_decoder_struct { 34 FLAG frame_status; 35 WORD32 byte_align_bits; 36 ia_aac_dec_sbr_bitstream_struct *pstr_sbr_bitstream; 37 ia_aac_dec_channel_info_struct *pstr_aac_dec_ch_info[CHANNELS]; 38 39 ia_aac_dec_channel_info *ptr_aac_dec_static_channel_info[CHANNELS]; 40 41 ia_aac_dec_overlap_info *pstr_aac_dec_overlap_info[CHANNELS]; 42 ia_pns_rand_vec_struct *pstr_pns_rand_vec_data; 43 void *p_ind_channel_info; 44 WORD32 block_number; 45 WORD16 sampling_rate_index; 46 WORD32 sampling_rate; 47 WORD32 samples_per_frame; 48 WORD16 channels; 49 WORD8 num_swb_window[2]; 50 ia_aac_dec_tables_struct *pstr_aac_tables; 51 ixheaacd_misc_tables *pstr_common_tables; 52 } ia_aac_decoder_struct; 53 54 struct ia_aac_persistent_struct { 55 WORD32 *overlap_buffer; 56 ia_aac_dec_overlap_info str_aac_dec_overlap_info[CHANNELS]; 57 ia_pns_rand_vec_struct str_pns_rand_vec_data; 58 struct ia_aac_decoder_struct str_aac_decoder; 59 WORD8 *sbr_payload_buffer; 60 61 ia_aac_dec_channel_info *ptr_aac_dec_static_channel_info[CHANNELS]; 62 WORD16 *ltp_buf[CHANNELS]; 63 }; 64 65 typedef struct { 66 VOID *base_scr_8k; 67 VOID *extra_scr_4k[4]; 68 69 WORD32 *in_data; 70 WORD32 *out_data; 71 72 } ia_aac_dec_scratch_struct; 73 74 WORD16 ixheaacd_individual_ch_stream( 75 ia_bit_buf_struct *it_bit_buff, ia_aac_decoder_struct *aac_dec_handle, 76 WORD32 num_ch, WORD32 frame_size, WORD32 total_channels, WORD32 object_type, 77 ia_eld_specific_config_struct eld_specific_config, WORD32 ele_type); 78 79 VOID ixheaacd_huff_tables_create(ia_aac_dec_tables_struct *); 80 81 WORD32 ixheaacd_set_aac_persistent_buffers(VOID *aac_persistent_mem_v, 82 WORD32 channels); 83 84 VOID ixheaacd_huffman_decode(WORD32 it_bit_buff, WORD16 *h_index, WORD16 *len, 85 const UWORD16 *input_table, 86 const UWORD32 *idx_table); 87 88 #endif /* #ifndef IXHEAACD_AACDEC_H */ 89
