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_SBRDECODER_H 21 #define IXHEAACD_SBRDECODER_H 22 23 #define EXT_DYNAMIC_RANGE 11 24 25 #define EXT_SAC_DATA 12 26 #define SBR_EXTENSION 13 27 #define SBR_EXTENSION_CRC 14 28 29 #define MAXNRELEMENTS 1 30 #define MAXNRSBRCHANNELS 2 31 #define MAXSBRBYTES 1024 32 33 #define SBRDEC_OK 0 34 35 typedef enum { 36 SBR_ID_SCE = 0, 37 SBR_ID_CPE, 38 SBR_ID_CCE = 2, 39 SBR_ID_LCS, 40 SBR_ID_LFE, 41 SBR_ID_DSE, 42 SBR_ID_PCE, 43 SBR_ID_FIL, 44 SBR_ID_END 45 } SBR_ELEMENT_ID; 46 47 typedef struct { 48 WORD32 sbr_ele_id; 49 WORD32 extension_type; 50 WORD32 size_payload; 51 WORD8 *ptr_sbr_data; 52 WORD8 *ptr_prev_sbr_data; 53 WORD32 prev_size_payload; 54 WORD32 frame_error_flag[2]; 55 WORD32 use_frame_slot; 56 WORD32 prev_sbr_ele_id; 57 WORD32 prev_extension_type; 58 WORD32 size_payload_old; 59 WORD8 sbr_prev_data[MAXSBRBYTES]; 60 } ia_sbr_element_stream_struct; 61 62 typedef struct { 63 WORD16 no_elements; 64 ia_sbr_element_stream_struct str_sbr_ele[MAXNRELEMENTS]; 65 } ia_aac_dec_sbr_bitstream_struct; 66 typedef enum { UNKNOWN_SBR = 0, ORIG_SBR, PVC_SBR } SBR_TYPE_ID; 67 68 typedef struct ia_sbr_dec_inst_struct *ia_handle_sbr_dec_inst_struct; 69 70 typedef struct { 71 VOID *ptr_work_buf_core; 72 VOID *ptr_work_buf; 73 VOID *extra_scr_1k[2]; 74 } ia_sbr_scr_struct; 75 76 IA_ERRORCODE ixheaacd_applysbr( 77 ia_handle_sbr_dec_inst_struct self, ia_aac_dec_sbr_bitstream_struct *p_sbr_bit_stream, 78 WORD16 *core_sample_buf, WORD16 *codec_num_channels, FLAG frame_status, FLAG down_samp_flag, 79 FLAG down_mix_flag, ia_sbr_scr_struct *sbr_scratch_struct, WORD32 ps_enable, WORD32 ch_fac, 80 WORD32 slot_element, ia_bit_buf_struct *it_bit_buff, ia_drc_dec_struct *pstr_drc_dec, 81 WORD eld_sbr_flag, WORD audio_object_type, WORD32 init_flag, WORD32 ldmps_present, 82 WORD32 frame_size, WORD32 heaac_mps_present, WORD32 ec_flag, FLAG first_frame); 83 84 IA_ERRORCODE ixheaacd_parse_sbr(ia_handle_sbr_dec_inst_struct self, 85 ia_aac_dec_sbr_bitstream_struct *p_sbr_bit_stream, 86 WORD16 *codec_num_channels, FLAG frame_status, 87 ia_sbr_scr_struct *sbr_scratch_struct, 88 ia_bit_buf_struct *it_bit_buff, WORD32 audio_object_type); 89 90 WORD32 ixheaacd_getsize_sbr_persistent(); 91 92 VOID ixheaacd_set_sbr_persistent_buffers(VOID *aac_persistent_mem_v, 93 WORD32 *persistent_used, 94 WORD32 channels, WORD32 ps_enable); 95 96 #endif /* IXHEAACD_SBRDECODER_H */ 97