Chisato Kenmochi | 9470443 | 2017-01-10 11:56:48 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2003 - 2016 Sony Corporation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef _LDAC_H |
| 18 | #define _LDAC_H |
| 19 | |
| 20 | #include "ldaclib.h" |
| 21 | #include "struct_ldac.h" |
| 22 | |
| 23 | |
| 24 | |
| 25 | |
| 26 | |
| 27 | /*************************************************************************************************** |
| 28 | Macro Definitions |
| 29 | ***************************************************************************************************/ |
| 30 | /* Configuration */ |
| 31 | #define LDAC_SYNCWORDBITS 8 |
| 32 | #define LDAC_SYNCWORD 0xAA |
| 33 | /** Sampling Rate **/ |
| 34 | #define LDAC_SMPLRATEBITS 3 |
| 35 | #define LDAC_NSMPLRATEID 6 |
| 36 | #define LDAC_NSUPSMPLRATEID 4 |
| 37 | #define LDAC_SMPLRATEID_0 0x0 |
| 38 | #define LDAC_SMPLRATEID_1 0x1 |
| 39 | #define LDAC_SMPLRATEID_2 0x2 |
| 40 | #define LDAC_SMPLRATEID_3 0x3 |
| 41 | /** Channel **/ |
| 42 | #define LDAC_CHCONFIG1BITS 3 |
| 43 | #define LDAC_CHCONFIG2BITS 2 |
| 44 | #define LDAC_NCHCONFIGID 8 |
| 45 | #define LDAC_MAXNCH 2 |
| 46 | #define LDAC_CHANNEL_1CH 1 |
| 47 | #define LDAC_CHANNEL_2CH 2 |
| 48 | #define LDAC_CHCONFIGID_MN 0 |
| 49 | #define LDAC_CHCONFIGID_DL 1 |
| 50 | #define LDAC_CHCONFIGID_ST 2 |
| 51 | /** Frame Length **/ |
| 52 | #define LDAC_FRAMELEN1BITS 11 |
| 53 | #define LDAC_FRAMELEN2BITS 9 |
| 54 | #define LDAC_MAXNBYTES 1024 |
| 55 | #define LDAC_MAXSUPNBYTES 512 |
| 56 | #define LDAC_MINSUPNBYTES 22 |
| 57 | /** Frame Status **/ |
| 58 | #define LDAC_FRAMESTATBITS 2 |
| 59 | #define LDAC_FRMSTAT_LEV_0 0 |
| 60 | #define LDAC_FRMSTAT_LEV_1 1 |
| 61 | #define LDAC_FRMSTAT_LEV_2 2 |
| 62 | #define LDAC_FRMSTAT_LEV_3 3 |
| 63 | /** Other **/ |
| 64 | #define LDAC_RESERVE1BITS 2 |
| 65 | #define LDAC_RESERVE2BITS 5 |
| 66 | #define LDAC_DUMMYCODE 0x00 |
| 67 | |
| 68 | /* Signal Processing */ |
| 69 | #define LDAC_NFRAME 2 |
| 70 | #define LDAC_NSFTSTEP 5 |
| 71 | /** Frame Samples (log base 2 of) **/ |
| 72 | #define LDAC_NUMLNN 2 |
| 73 | #define LDAC_MAXLNN 8 |
| 74 | #define LDAC_2FSLNN 8 |
| 75 | #define LDAC_1FSLNN 7 |
| 76 | /** Frame Samples **/ |
| 77 | #define LDAC_MAXLSU (1<<LDAC_MAXLNN) |
| 78 | #define LDAC_2FSLSU (1<<LDAC_2FSLNN) |
| 79 | #define LDAC_1FSLSU (1<<LDAC_1FSLNN) |
| 80 | /** Band **/ |
| 81 | #define LDAC_MAXNBANDS 16 |
| 82 | #define LDAC_2FSNBANDS 16 |
| 83 | #define LDAC_1FSNBANDS 12 |
| 84 | /** QU **/ |
| 85 | #define LDAC_MAXGRADQU 50 |
| 86 | #define LDAC_MAXNQUS 34 |
| 87 | #define LDAC_2FSNQUS 34 |
| 88 | #define LDAC_1FSNQUS 26 |
| 89 | #define LDAC_MAXNSPS 16 |
| 90 | /** Frame Status Analysis **/ |
| 91 | #define LDAC_NSP_PSEUDOANA 128 |
| 92 | #define LDAC_NSP_LOWENERGY 12 |
| 93 | #define LDAC_TH_ZCROSNUM 90 |
| 94 | #define LDAC_MAXCNT_FRMANA 10 |
| 95 | |
| 96 | /* Stream Syntax */ |
| 97 | #define LDAC_BLKID_MONO 0 |
| 98 | #define LDAC_BLKID_STEREO 1 |
| 99 | #define LDAC_FILLCODE 0x01 |
| 100 | /** Band Info **/ |
| 101 | #define LDAC_NBANDBITS 4 |
| 102 | #define LDAC_BAND_OFFSET 2 |
| 103 | /** Gradient Data **/ |
| 104 | #define LDAC_GRADMODEBITS 2 |
| 105 | #define LDAC_GRADOSBITS 5 |
| 106 | #define LDAC_MAXGRADOS 31 |
| 107 | #define LDAC_DEFGRADOSH 31 |
| 108 | #define LDAC_GRADQU0BITS 6 |
| 109 | #define LDAC_GRADQU1BITS 5 |
| 110 | #define LDAC_DEFGRADQUH 26 |
| 111 | #define LDAC_NADJQUBITS 5 |
| 112 | #define LDAC_MAXNADJQUS 32 |
| 113 | /** Scale Factor Data **/ |
| 114 | #define LDAC_IDSFBITS 5 |
| 115 | #define LDAC_NIDSF 32 |
| 116 | #define LDAC_SFCMODEBITS 1 |
| 117 | #define LDAC_NSFCMODE 2 |
| 118 | #define LDAC_SFCWTBLBITS 3 |
| 119 | #define LDAC_NSFCWTBL 8 |
| 120 | #define LDAC_SFCBLENBITS 2 |
| 121 | #define LDAC_MINSFCBLEN_0 3 |
| 122 | #define LDAC_MAXSFCBLEN_0 6 |
| 123 | #define LDAC_MINSFCBLEN_1 2 |
| 124 | #define LDAC_MAXSFCBLEN_1 5 |
| 125 | #define LDAC_MINSFCBLEN_2 2 |
| 126 | #define LDAC_MAXSFCBLEN_2 5 |
| 127 | /** Spectrum/Residual Data **/ |
| 128 | #define LDAC_NIDWL 16 |
| 129 | #define LDAC_MINIDWL1 1 |
| 130 | #define LDAC_MAXIDWL1 15 |
| 131 | #define LDAC_MAXIDWL2 15 |
| 132 | #define LDAC_2DIMSPECBITS 3 |
| 133 | #define LDAC_N2DIMSPECENCTBL 16 |
| 134 | #define LDAC_N2DIMSPECDECTBL 8 |
| 135 | #define LDAC_4DIMSPECBITS 7 |
| 136 | #define LDAC_N4DIMSPECENCTBL 256 |
| 137 | #define LDAC_N4DIMSPECDECTBL 81 |
| 138 | /** Bit Operation **/ |
| 139 | #define LDAC_LOC_SHIFT 3 |
| 140 | #define LDAC_LOC_MASK 0x7 |
| 141 | #define LDAC_BYTESIZE 8 |
| 142 | #define LDAC_MAXBITNUM 8192 |
| 143 | |
| 144 | /* Flag */ |
| 145 | #define LDAC_FLAGBITS 1 |
| 146 | #define LDAC_TRUE 1 |
| 147 | #define LDAC_FALSE 0 |
| 148 | |
| 149 | /* Mode */ |
| 150 | #define LDAC_MODE_0 0 |
| 151 | #define LDAC_MODE_1 1 |
| 152 | #define LDAC_MODE_2 2 |
| 153 | #define LDAC_MODE_3 3 |
| 154 | |
| 155 | /*************************************************************************************************** |
| 156 | Structure Definitions |
| 157 | ***************************************************************************************************/ |
| 158 | typedef struct _sfinfo_ldac SFINFO; |
| 159 | typedef struct _config_info_ldac CFG; |
| 160 | typedef struct _audio_block_ldac AB; |
| 161 | typedef struct _audio_channel_ldac AC; |
| 162 | typedef struct _audio_channel_sub_ldac ACSUB; |
| 163 | |
| 164 | /* Configuration Information Structure */ |
| 165 | struct _config_info_ldac { |
| 166 | int syncword; |
| 167 | int smplrate_id; |
| 168 | int chconfig_id; |
| 169 | int ch; |
| 170 | int frame_length; |
| 171 | int frame_status; |
| 172 | }; |
| 173 | |
| 174 | /* Audio Channel (AC) Sub Structure */ |
| 175 | #ifndef _32BIT_FIXED_POINT |
| 176 | struct _audio_channel_sub_ldac { |
| 177 | SCALAR a_time[LDAC_MAXLSU*LDAC_NFRAME]; |
| 178 | SCALAR a_spec[LDAC_MAXLSU]; |
| 179 | }; |
| 180 | #else /* _32BIT_FIXED_POINT */ |
| 181 | struct _audio_channel_sub_ldac { |
| 182 | INT32 a_time[LDAC_MAXLSU*LDAC_NFRAME]; |
| 183 | INT32 a_spec[LDAC_MAXLSU]; |
| 184 | }; |
| 185 | #endif /* _32BIT_FIXED_POINT */ |
| 186 | |
| 187 | /* Audio Channel (AC) Structure */ |
| 188 | struct _audio_channel_ldac { |
| 189 | int ich; |
| 190 | int frmana_cnt; |
| 191 | int sfc_mode; |
| 192 | int sfc_bitlen; |
| 193 | int sfc_offset; |
| 194 | int sfc_weight; |
| 195 | int a_idsf[LDAC_MAXNQUS]; |
| 196 | int a_idwl1[LDAC_MAXNQUS]; |
| 197 | int a_idwl2[LDAC_MAXNQUS]; |
| 198 | int a_addwl[LDAC_MAXNQUS]; |
| 199 | int a_tmp[LDAC_MAXNQUS]; |
| 200 | int a_qspec[LDAC_MAXLSU]; |
| 201 | int a_rspec[LDAC_MAXLSU]; |
| 202 | AB *p_ab; |
| 203 | ACSUB *p_acsub; |
| 204 | }; |
| 205 | |
| 206 | /* Audio Block (AB) Structure */ |
| 207 | struct _audio_block_ldac { |
| 208 | int blk_type; |
| 209 | int blk_nchs; |
| 210 | int nbands; |
| 211 | int nqus; |
| 212 | int grad_mode; |
| 213 | int grad_qu_l; |
| 214 | int grad_qu_h; |
| 215 | int grad_os_l; |
| 216 | int grad_os_h; |
| 217 | int a_grad[LDAC_MAXGRADQU]; |
| 218 | int nadjqus; |
| 219 | int abc_status; |
| 220 | int nbits_ab; |
| 221 | int nbits_band; |
| 222 | int nbits_grad; |
| 223 | int nbits_scfc; |
| 224 | int nbits_spec; |
| 225 | int nbits_avail; |
| 226 | int nbits_used; |
| 227 | int *p_smplrate_id; |
| 228 | int *p_error_code; |
| 229 | AC *ap_ac[2]; |
| 230 | }; |
| 231 | |
| 232 | /* Sound Frame Structure */ |
| 233 | struct _sfinfo_ldac { |
| 234 | CFG cfg; |
| 235 | AB *p_ab; |
| 236 | AC *ap_ac[LDAC_MAXNCH]; |
| 237 | char *p_mempos; |
| 238 | int error_code; |
| 239 | }; |
| 240 | |
| 241 | /* LDAC Handle */ |
| 242 | typedef struct _handle_ldac_struct { |
| 243 | int nlnn; |
| 244 | int nbands; |
| 245 | int grad_mode; |
| 246 | int grad_qu_l; |
| 247 | int grad_qu_h; |
| 248 | int grad_os_l; |
| 249 | int grad_os_h; |
| 250 | int abc_status; |
| 251 | int error_code; |
| 252 | SFINFO sfinfo; |
| 253 | } HANDLE_LDAC_STRUCT; |
| 254 | |
| 255 | /* Huffman Codeword */ |
| 256 | typedef struct { |
| 257 | unsigned char word; |
| 258 | unsigned char len; |
| 259 | } HC; |
| 260 | |
| 261 | /* Huffman Encoding Structure */ |
| 262 | typedef struct _hcenc_ldac HCENC; |
| 263 | struct _hcenc_ldac { |
| 264 | const HC *p_tbl; |
| 265 | unsigned char ncodes; |
| 266 | unsigned char wl; |
| 267 | unsigned char mask; |
| 268 | }; |
| 269 | |
| 270 | |
| 271 | /******************************************************************************* |
| 272 | Function Declarations |
| 273 | *******************************************************************************/ |
| 274 | #define npow2_ldac(n) (1 << (n)) |
| 275 | #define min_ldac(a, b) (((a)<(b)) ? (a) : (b)) |
| 276 | #define max_ldac(a, b) (((a)>(b)) ? (a) : (b)) |
| 277 | |
| 278 | /* Get Huffman Codeword Property */ |
| 279 | #define hc_len_ldac(p) ((p)->len) |
| 280 | #define hc_word_ldac(p) ((p)->word) |
| 281 | |
| 282 | /* Convert a Signed Number with nbits to a Signed Integer */ |
| 283 | #define bs_to_int_ldac(bs, nbits) (((bs)&(0x1<<((nbits)-1))) ? ((bs)|((~0x0)<<(nbits))) : bs) |
| 284 | |
| 285 | #ifdef _32BIT_FIXED_POINT |
| 286 | #include "fixp_ldac.h" |
| 287 | #endif /* _32BIT_FIXED_POINT */ |
| 288 | #include "proto_ldac.h" |
| 289 | |
| 290 | |
| 291 | #endif /* _LDAC_H */ |
| 292 | |