1 /* ----------------------------------------------------------------------------- 2 Software License for The Fraunhofer FDK AAC Codec Library for Android 3 4 Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Frderung der angewandten 5 Forschung e.V. All rights reserved. 6 7 1. INTRODUCTION 8 The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software 9 that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding 10 scheme for digital audio. This FDK AAC Codec software is intended to be used on 11 a wide variety of Android devices. 12 13 AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient 14 general perceptual audio codecs. AAC-ELD is considered the best-performing 15 full-bandwidth communications codec by independent studies and is widely 16 deployed. AAC has been standardized by ISO and IEC as part of the MPEG 17 specifications. 18 19 Patent licenses for necessary patent claims for the FDK AAC Codec (including 20 those of Fraunhofer) may be obtained through Via Licensing 21 (www.vialicensing.com) or through the respective patent owners individually for 22 the purpose of encoding or decoding bit streams in products that are compliant 23 with the ISO/IEC MPEG audio standards. Please note that most manufacturers of 24 Android devices already license these patent claims through Via Licensing or 25 directly from the patent owners, and therefore FDK AAC Codec software may 26 already be covered under those patent licenses when it is used for those 27 licensed purposes only. 28 29 Commercially-licensed AAC software libraries, including floating-point versions 30 with enhanced sound quality, are also available from Fraunhofer. Users are 31 encouraged to check the Fraunhofer website for additional applications 32 information and documentation. 33 34 2. COPYRIGHT LICENSE 35 36 Redistribution and use in source and binary forms, with or without modification, 37 are permitted without payment of copyright license fees provided that you 38 satisfy the following conditions: 39 40 You must retain the complete text of this software license in redistributions of 41 the FDK AAC Codec or your modifications thereto in source code form. 42 43 You must retain the complete text of this software license in the documentation 44 and/or other materials provided with redistributions of the FDK AAC Codec or 45 your modifications thereto in binary form. You must make available free of 46 charge copies of the complete source code of the FDK AAC Codec and your 47 modifications thereto to recipients of copies in binary form. 48 49 The name of Fraunhofer may not be used to endorse or promote products derived 50 from this library without prior written permission. 51 52 You may not charge copyright license fees for anyone to use, copy or distribute 53 the FDK AAC Codec software or your modifications thereto. 54 55 Your modified versions of the FDK AAC Codec must carry prominent notices stating 56 that you changed the software and the date of any change. For modified versions 57 of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android" 58 must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK 59 AAC Codec Library for Android." 60 61 3. NO PATENT LICENSE 62 63 NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without 64 limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE. 65 Fraunhofer provides no warranty of patent non-infringement with respect to this 66 software. 67 68 You may use this FDK AAC Codec software or modifications thereto only for 69 purposes that are authorized by appropriate patent licenses. 70 71 4. DISCLAIMER 72 73 This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright 74 holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, 75 including but not limited to the implied warranties of merchantability and 76 fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 77 CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, 78 or consequential damages, including but not limited to procurement of substitute 79 goods or services; loss of use, data, or profits, or business interruption, 80 however caused and on any theory of liability, whether in contract, strict 81 liability, or tort (including negligence), arising in any way out of the use of 82 this software, even if advised of the possibility of such damage. 83 84 5. CONTACT INFORMATION 85 86 Fraunhofer Institute for Integrated Circuits IIS 87 Attention: Audio and Multimedia Departments - FDK AAC LL 88 Am Wolfsmantel 33 89 91058 Erlangen, Germany 90 91 www.iis.fraunhofer.de/amm 92 amm-info (at) iis.fraunhofer.de 93 ----------------------------------------------------------------------------- */ 94 95 /*********************** MPEG surround decoder library ************************* 96 97 Author(s): 98 99 Description: SAC Decoder Library structures 100 101 *******************************************************************************/ 102 103 #ifndef SAC_DEC_H 104 #define SAC_DEC_H 105 106 #include "common_fix.h" 107 108 #include "sac_dec_interface.h" /* library interface in ../include */ 109 110 #include "FDK_qmf_domain.h" 111 #include "sac_qmf.h" 112 #include "FDK_bitstream.h" /* mp4 bitbuffer */ 113 #include "sac_calcM1andM2.h" 114 #include "FDK_hybrid.h" 115 #include "FDK_decorrelate.h" 116 #include "sac_reshapeBBEnv.h" 117 118 #include "sac_dec_conceal.h" 119 120 #include "sac_tsd.h" 121 122 #ifndef MAX 123 #define MAX(a, b) ((a) > (b) ? (a) : (b)) 124 #endif 125 126 #define ICCdefault 0 127 #define IPDdefault 0 128 #define arbdmxGainDefault 0 129 #define CPCdefault 10 130 #define tttCLD1default 15 131 #define tttCLD2default 0 132 133 #define IS_HQ_ONLY(aot) \ 134 ((aot) == AOT_ER_AAC_LD || (aot) == AOT_ER_AAC_ELD || (aot) == AOT_USAC || \ 135 (aot) == AOT_RSVD50) 136 137 #define SCONST(x) FL2FXCONST_DBL(x) 138 139 #define PC_NUM_BANDS (8) 140 #define PC_NUM_HYB_BANDS (PC_NUM_BANDS - 3 + 10) 141 #define ABS_THR (1e-9f * 32768 * 32768) 142 143 #define MAX_HYBRID_BANDS (MAX_NUM_QMF_BANDS - 3 + 10) 144 #define HYBRID_FILTER_DELAY (6) 145 146 #define MAX_RESIDUAL_FRAMES (4) 147 #define MAX_RESIDUAL_BISTREAM \ 148 (836) /* 48000 bps * 3 res / (8 * 44100 / 2048 ) */ 149 #define MAX_MDCT_COEFFS (1024) 150 #define SACDEC_RESIDUAL_BS_BUF_SIZE \ 151 (1024) /* used to setup and check residual bitstream buffer */ 152 153 #define MAX_NUM_PARAMS (MAX_NUM_OTT + 4 * MAX_NUM_TTT + MAX_INPUT_CHANNELS) 154 #define MAX_NUM_PARAMETERS (MAX(MAX_NUM_PARAMS, MAX_NUM_OTT)) 155 156 #define MAX_PARAMETER_SETS (9) 157 158 #define MAX_M2_INPUT (MAX_OUTPUT_CHANNELS) /* 3 direct + 5 diffuse */ 159 160 #define MAX_QMF_BANDS_TO_HYBRID \ 161 (3) /* 3 bands are filtered again in "40 bands" case */ 162 #define PROTO_LEN (13) 163 #define BUFFER_LEN_LF (PROTO_LEN) 164 #define BUFFER_LEN_HF ((PROTO_LEN - 1) / 2) 165 166 #define MAX_NO_DECORR_CHANNELS (MAX_OUTPUT_CHANNELS) 167 #define HRTF_AZIMUTHS (5) 168 169 #define MAX_NUM_OTT_AT 0 170 171 /* left out */ 172 173 typedef enum { 174 UPMIXTYPE_BYPASS = -1, /*just bypass the input channels without processing*/ 175 UPMIXTYPE_NORMAL = 0 /*multichannel loudspeaker upmix with spatial data*/ 176 } UPMIXTYPE; 177 178 static inline int isTwoChMode(UPMIXTYPE upmixType) { 179 int retval = 0; 180 return retval; 181 } 182 183 /* left out end */ 184 185 #define MPEGS_BYPASSMODE (0x00000001) 186 #define MPEGS_CONCEAL (0x00000002) 187 188 typedef struct STP_DEC *HANDLE_STP_DEC; 189 190 typedef struct { 191 SCHAR bsQuantCoarseXXXprev; 192 SCHAR bsQuantCoarseXXXprevParse; 193 } LOSSLESSSTATE; 194 195 typedef struct { 196 SCHAR bsXXXDataMode[MAX_PARAMETER_SETS]; 197 SCHAR bsQuantCoarseXXX[MAX_PARAMETER_SETS]; 198 SCHAR bsFreqResStrideXXX[MAX_PARAMETER_SETS]; 199 SCHAR nocmpQuantCoarseXXX[MAX_PARAMETER_SETS]; 200 LOSSLESSSTATE *state; /* Link to persistent state information */ 201 } LOSSLESSDATA; 202 203 struct SPATIAL_BS_FRAME_struct { 204 UCHAR bsIndependencyFlag; 205 UCHAR newBsData; 206 UCHAR numParameterSets; 207 208 /* 209 If bsFramingType == 0, then the paramSlot[ps] for 0 <= ps < numParamSets is 210 calculated as follows: paramSlot[ps] = ceil(numSlots*(ps+1)/numParamSets) - 1 211 Otherwise, it is 212 paramSlot[ps] = bsParamSlot[ps] 213 */ 214 INT paramSlot[MAX_PARAMETER_SETS]; 215 216 /* These arrays contain the compact indices, only one value per pbstride, only 217 * paramsets actually containing data. */ 218 /* These values are written from the parser in ecDataDec() and read during 219 * decode in mapIndexData() */ 220 SCHAR cmpOttCLDidx[MAX_NUM_OTT + MAX_NUM_OTT_AT][MAX_PARAMETER_SETS] 221 [MAX_PARAMETER_BANDS]; 222 SCHAR cmpOttICCidx[MAX_NUM_OTT][MAX_PARAMETER_SETS][MAX_PARAMETER_BANDS]; 223 224 /* Smoothing */ 225 UCHAR bsSmoothMode[MAX_PARAMETER_SETS]; 226 UCHAR bsSmoothTime[MAX_PARAMETER_SETS]; 227 UCHAR bsFreqResStrideSmg[MAX_PARAMETER_SETS]; 228 UCHAR bsSmgData[MAX_PARAMETER_SETS] 229 [MAX_PARAMETER_BANDS]; /* smoothing flags, one if band is 230 smoothed, otherwise zero */ 231 232 /* Arbitrary Downmix */ 233 SCHAR (*cmpArbdmxGainIdx)[MAX_PARAMETER_SETS][MAX_PARAMETER_BANDS]; 234 235 /* Lossless control */ 236 LOSSLESSDATA *CLDLosslessData; 237 LOSSLESSDATA *ICCLosslessData; 238 /* LOSSLESSDATA *ADGLosslessData; -> is stored in CLDLosslessData[offset] */ 239 240 LOSSLESSDATA *IPDLosslessData; 241 SCHAR (*cmpOttIPDidx)[MAX_PARAMETER_SETS][MAX_PARAMETER_BANDS]; 242 int phaseMode; 243 int OpdSmoothingMode; 244 245 UCHAR tempShapeEnableChannelGES[MAX_OUTPUT_CHANNELS]; /*!< GES side info. */ 246 UCHAR bsEnvShapeData[MAX_OUTPUT_CHANNELS] 247 [MAX_TIME_SLOTS]; /*!< GES side info (quantized). */ 248 249 UCHAR tempShapeEnableChannelSTP[MAX_OUTPUT_CHANNELS]; /*!< STP side info. */ 250 251 TSD_DATA TsdData[1]; /*!< TSD data structure. */ 252 }; 253 254 typedef struct { 255 /* Lossless state */ 256 LOSSLESSSTATE CLDLosslessState[MAX_NUM_PARAMETERS]; 257 LOSSLESSSTATE ICCLosslessState[MAX_NUM_PARAMETERS]; 258 LOSSLESSSTATE IPDLosslessState[MAX_NUM_PARAMETERS]; 259 } BS_LL_STATE; 260 261 typedef struct { 262 int prevParamSlot; 263 int prevSmgTime; 264 UCHAR prevSmgData[MAX_PARAMETER_BANDS]; 265 266 FIXP_DBL opdLeftState__FDK[MAX_PARAMETER_BANDS]; 267 FIXP_DBL opdRightState__FDK[MAX_PARAMETER_BANDS]; 268 269 } SMOOTHING_STATE; 270 271 typedef struct { 272 FIXP_DBL alpha__FDK; 273 FIXP_DBL beta__FDK; 274 FIXP_DBL partNrgPrev__FDK[2 * MAX_OUTPUT_CHANNELS + MAX_INPUT_CHANNELS] 275 [BB_ENV_SIZE]; 276 FIXP_DBL normNrgPrev__FDK[2 * MAX_OUTPUT_CHANNELS + MAX_INPUT_CHANNELS]; 277 FIXP_DBL frameNrgPrev__FDK[2 * MAX_OUTPUT_CHANNELS + MAX_INPUT_CHANNELS]; 278 INT partNrgPrevSF[2 * MAX_OUTPUT_CHANNELS + MAX_INPUT_CHANNELS]; 279 INT partNrgPrev2SF[2 * MAX_OUTPUT_CHANNELS + MAX_INPUT_CHANNELS]; 280 INT normNrgPrevSF[2 * MAX_OUTPUT_CHANNELS + MAX_INPUT_CHANNELS]; 281 INT frameNrgPrevSF[2 * MAX_OUTPUT_CHANNELS + MAX_INPUT_CHANNELS]; 282 } RESHAPE_BBENV_STATE; 283 284 typedef struct { 285 int maxNumInputChannels; 286 int maxNumOutputChannels; 287 int maxNumQmfBands; 288 int maxNumHybridBands; 289 int maxNumXChannels; 290 int maxNumVChannels; 291 int maxNumDecorChannels; 292 int maxNumCmplxQmfBands; 293 int maxNumCmplxHybBands; 294 int maxNumResChannels; 295 int bProcResidual; /* process residual */ 296 int maxNumResidualChannels; 297 int maxNumOttBoxes; 298 int maxNumParams; 299 300 } SACDEC_CREATION_PARAMS; 301 302 struct spatialDec_struct { 303 SACDEC_ERROR 304 errInt; /* Field to store internal errors. 305 Will be clear at the very beginning of each process call. */ 306 int staticDecScale; /* static scale of decoder */ 307 308 /* GENERAL */ 309 int samplingFreq; /* [Hz] */ 310 CFG_LEVEL decoderLevel; /* 0..5 */ 311 CFG_EXTENT decoderMode; 312 CFG_BINAURAL binauralMode; 313 314 SACDEC_CREATION_PARAMS createParams; 315 316 int numComplexProcessingBands; 317 318 int treeConfig; /* TREE_5151 = 5151, TREE_5152 = 5152, TREE_525 = 525, defined 319 in sac_bitdec.h */ 320 321 int numInputChannels; /* 1 (M) or 2 (L,R) */ 322 int numOutputChannels; /* 6 for 3/2.1 (FL,FR,FC,LF,BL,BR) */ 323 int numOttBoxes; /* number of ott boxes */ 324 int numM2rows; 325 326 int numOutputChannelsAT; /* Number of output channels after arbitrary tree 327 processing */ 328 329 int quantMode; /* QUANT_FINE, QUANT_EBQ1, QUANT_EBQ2, defined in sac_bitdec.h 330 */ 331 int arbitraryDownmix; /* (arbitraryDownmix != 0) 1 arbitrary downmix data 332 present, 2 arbitrary downmix residual data present*/ 333 int residualCoding; /* (residualCoding != 0) => residual coding data present 334 */ 335 UCHAR nrResidualFrame; 336 UCHAR nrArbDownmixResidualFrame; 337 FDK_BITSTREAM **hResidualBitstreams; 338 int tempShapeConfig; /* */ 339 int decorrType; /* Indicates to use PS or none PS decorrelator. */ 340 int decorrConfig; /* chosen decorrelator */ 341 int envQuantMode; /* quantization mode of envelope reshaping data */ 342 343 FIXP_DBL clipProtectGain__FDK; /* global gain for upmix */ 344 char clipProtectGainSF__FDK; /* global gain for upmix */ 345 346 /* Currently ignoring center decorr 347 numVChannels = numDirektSignals + numDecorSignals */ 348 int numDirektSignals; /* needed for W, Number of direkt signals 515 -> 1 525 349 -> 3 */ 350 int wStartResidualIdx; /* Where to start read residuals for W, = 0 for 515, = 351 1 for 525 since one residual is used in V */ 352 int numDecorSignals; /* needed for W, Number of residual and decorrelated 353 signals, = 2, 3 for center deccorelation*/ 354 int numVChannels; /* direct signals + decorelator signals */ 355 int numXChannels; /* direct input signals + TTT-residuals */ 356 357 int timeSlots; /* length of spatial frame in QMF samples */ 358 int curTimeSlot; /* pointer to the current time slot used for hyperframing */ 359 int prevTimeSlot; /* */ 360 int curPs; 361 int frameLength; /* number of output waveform samples/channel/frame */ 362 UPMIXTYPE upmixType; 363 int partiallyComplex; 364 int useFDreverb; 365 366 int bShareDelayWithSBR; 367 368 int tp_hybBandBorder; /* Hybrid band indicating the HP filter cut-off. */ 369 370 /* FREQUENCY MAPPING */ 371 int qmfBands; 372 int hybridBands; 373 const SCHAR *kernels; /* Mapping hybrid band to parameter band. */ 374 375 int TsdTs; /**< TSD QMF slot counter 0<= ts < numSlots */ 376 377 int *param2hyb; /* Mapping parameter bands to hybrid bands */ 378 int kernels_width[MAX_PARAMETER_BANDS]; /* Mapping parmeter band to hybrid 379 band offsets. */ 380 381 /* Residual coding */ 382 int residualSamplingFreq; 383 UCHAR residualPresent[MAX_NUM_OTT + MAX_NUM_TTT]; 384 UCHAR residualBands[MAX_NUM_OTT + MAX_NUM_TTT]; /* 0, if no residual data 385 present for this box */ 386 UCHAR residualQMFBands[MAX_NUM_OTT + MAX_NUM_TTT]; /* needed for optimized 387 mdct2qmf calculation */ 388 SPATIAL_SPECIFIC_CONFIG *pConfigCurrent; 389 390 int arbdmxFramesPerSpatialFrame; 391 int arbdmxUpdQMF; 392 393 int numParameterBands; /* Number of parameter bands 40, 28, 20, 14, 10, ... 394 .*/ 395 int bitstreamParameterBands; 396 int *numOttBands; /* number of bands for each ott, is != numParameterBands for 397 LFEs */ 398 399 /* 1 MAPPING */ 400 UCHAR extendFrame; 401 UCHAR numParameterSetsPrev; 402 403 int *smgTime; 404 UCHAR **smgData; 405 406 /* PARAMETER DATA decoded and dequantized */ 407 408 /* Last parameters from prev frame required during decode in mapIndexData() 409 * and not touched during parse */ 410 SCHAR **ottCLDidxPrev; 411 SCHAR **ottICCidxPrev; 412 SCHAR **arbdmxGainIdxPrev; 413 SCHAR **ottIPDidxPrev; 414 SCHAR ***outIdxData; /* is this really persistent memory ? */ 415 416 /* State mem required during parse in SpatialDecParseFrameData() */ 417 SCHAR **cmpOttCLDidxPrev; 418 SCHAR **cmpOttICCidxPrev; 419 SCHAR ***ottICCdiffidx; 420 SCHAR **cmpOttIPDidxPrev; 421 422 /* State mem required in parseArbitraryDownmixData */ 423 SCHAR **cmpArbdmxGainIdxPrev; 424 425 SCHAR ***ottCLD__FDK; 426 SCHAR ***ottICC__FDK; 427 428 SCHAR ***arbdmxGain__FDK; /* Holds the artistic downmix correction index.*/ 429 430 FIXP_DBL *arbdmxAlpha__FDK; 431 FIXP_DBL *arbdmxAlphaPrev__FDK; 432 433 UCHAR stereoConfigIndex; 434 int highRateMode; 435 436 int phaseCoding; 437 438 SCHAR ***ottIPD__FDK; 439 440 FIXP_DBL PhaseLeft__FDK[MAX_PARAMETER_BANDS]; 441 FIXP_DBL PhaseRight__FDK[MAX_PARAMETER_BANDS]; 442 FIXP_DBL PhasePrevLeft__FDK[MAX_PARAMETER_BANDS]; 443 FIXP_DBL PhasePrevRight__FDK[MAX_PARAMETER_BANDS]; 444 int numOttBandsIPD; 445 446 /* GAIN MATRICIES FOR CURRENT and PREVIOUS PARMATER SET(s)*/ 447 FIXP_DBL ***M2Real__FDK; 448 FIXP_DBL ***M2Imag__FDK; 449 FIXP_DBL ***M2RealPrev__FDK; 450 FIXP_DBL ***M2ImagPrev__FDK; 451 452 /* INPUT SIGNALS */ 453 FIXP_DBL ***qmfInputRealDelayBuffer__FDK; 454 FIXP_DBL ***qmfInputImagDelayBuffer__FDK; 455 456 int pc_filterdelay; /* additional delay to align HQ with LP before hybird 457 analysis */ 458 int qmfInputDelayBufPos; 459 FIXP_DBL **qmfInputReal__FDK; 460 FIXP_DBL **qmfInputImag__FDK; 461 462 FIXP_DBL **hybInputReal__FDK; 463 FIXP_DBL **hybInputImag__FDK; 464 465 FIXP_DBL **binInputReverb; 466 467 FIXP_DBL binGain, reverbGain; 468 FIXP_DBL binCenterGain, reverbCenterGain; 469 470 /* RESIDUAL SIGNALS */ 471 472 FIXP_DBL ***qmfResidualReal__FDK; 473 FIXP_DBL ***qmfResidualImag__FDK; 474 475 FIXP_DBL **hybResidualReal__FDK; 476 FIXP_DBL **hybResidualImag__FDK; 477 478 int qmfOutputRealDryDelayBufPos; 479 FIXP_DBL ***qmfOutputRealDryDelayBuffer__FDK; 480 FIXP_DBL ***qmfOutputImagDryFilterBuffer__FDK; 481 FIXP_DBL *qmfOutputImagDryFilterBufferBase__FDK; 482 483 /* TEMPORARY SIGNALS */ 484 485 FIXP_DBL **wReal__FDK; 486 FIXP_DBL **wImag__FDK; 487 488 /* OUTPUT SIGNALS */ 489 FIXP_DBL **hybOutputRealDry__FDK; 490 FIXP_DBL **hybOutputImagDry__FDK; 491 FIXP_DBL **hybOutputRealWet__FDK; 492 FIXP_DBL **hybOutputImagWet__FDK; 493 PCM_MPS *timeOut__FDK; 494 495 HANDLE_FDK_QMF_DOMAIN pQmfDomain; 496 497 FDK_ANA_HYB_FILTER 498 *hybridAnalysis; /*!< pointer Analysis hybrid filterbank array. */ 499 FDK_SYN_HYB_FILTER 500 *hybridSynthesis; /*!< pointer Synthesis hybrid filterbank array. */ 501 FIXP_DBL ** 502 pHybridAnaStatesLFdmx; /*!< pointer to analysis hybrid filter states LF */ 503 FIXP_DBL ** 504 pHybridAnaStatesHFdmx; /*!< pointer to analysis hybrid filter states HF */ 505 FIXP_DBL ** 506 pHybridAnaStatesLFres; /*!< pointer to analysis hybrid filter states LF */ 507 FIXP_DBL ** 508 pHybridAnaStatesHFres; /*!< pointer to analysis hybrid filter states HF */ 509 510 DECORR_DEC *apDecor; /*!< pointer decorrelator array. */ 511 FIXP_DBL **pDecorBufferCplx; 512 513 SMOOTHING_STATE *smoothState; /*!< Pointer to smoothing states. */ 514 515 RESHAPE_BBENV_STATE *reshapeBBEnvState; /*!< GES handle. */ 516 SCHAR row2channelDmxGES[MAX_OUTPUT_CHANNELS]; 517 518 HANDLE_STP_DEC hStpDec; /*!< STP handle. */ 519 520 const UCHAR *pActivM2ParamBands; 521 522 int bOverwriteM1M2prev; /* Overwrite previous M2/M2 params with first set of 523 new frame after SSC change (aka 524 decodeAfterConfigHasChangedFlag). */ 525 SpatialDecConcealmentInfo concealInfo; 526 }; 527 528 #define SACDEC_SYNTAX_MPS 1 529 #define SACDEC_SYNTAX_USAC 2 530 #define SACDEC_SYNTAX_RSVD50 4 531 #define SACDEC_SYNTAX_L2 8 532 #define SACDEC_SYNTAX_L3 16 533 #define SACDEC_SYNTAX_LD 32 534 535 static inline int GetProcBand(spatialDec_struct *self, int qs) { 536 return self->kernels[qs]; 537 } 538 539 #endif /* SAC_DEC_H */ 540
