12228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 22228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* ----------------------------------------------------------------------------------------------------------- 32228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectSoftware License for The Fraunhofer FDK AAC Codec Library for Android 42228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 52228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project� Copyright 1995 - 2012 Fraunhofer-Gesellschaft zur F�rderung der angewandten Forschung e.V. 62228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project All rights reserved. 72228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 82228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1. INTRODUCTION 92228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThe Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements 102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectthe MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio. 112228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThis FDK AAC Codec software is intended to be used on a wide variety of Android devices. 122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 132228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual 142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectaudio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by 152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectindependent studies and is widely deployed. AAC has been standardized by ISO and IEC as part 162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectof the MPEG specifications. 172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 182228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectPatent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer) 192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectmay be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners 202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectindividually for the purpose of encoding or decoding bit streams in products that are compliant with 212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectthe ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license 222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectthese patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec 232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectsoftware may already be covered under those patent licenses when it is used for those licensed purposes only. 242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 252228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectCommercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality, 262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectare also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional 272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectapplications information and documentation. 282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project2. COPYRIGHT LICENSE 302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 312228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectRedistribution and use in source and binary forms, with or without modification, are permitted without 322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectpayment of copyright license fees provided that you satisfy the following conditions: 332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 342228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou must retain the complete text of this software license in redistributions of the FDK AAC Codec or 352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectyour modifications thereto in source code form. 362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 372228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou must retain the complete text of this software license in the documentation and/or other materials 382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectprovided with redistributions of the FDK AAC Codec or your modifications thereto in binary form. 392228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou must make available free of charge copies of the complete source code of the FDK AAC Codec and your 402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectmodifications thereto to recipients of copies in binary form. 412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 422228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThe name of Fraunhofer may not be used to endorse or promote products derived from this library without 432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectprior written permission. 442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 452228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec 462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectsoftware or your modifications thereto. 472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 482228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYour modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software 492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectand the date of any change. For modified versions of the FDK AAC Codec, the term 502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term 512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android." 522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project3. NO PATENT LICENSE 542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 552228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectNO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer, 562228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with 572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectrespect to this software. 582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 592228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectYou may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized 602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectby appropriate patent licenses. 612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project4. DISCLAIMER 632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 642228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectThis FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors 652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties 662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectof merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 672228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectCONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages, 682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectincluding but not limited to procurement of substitute goods or services; loss of use, data, or profits, 692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projector business interruption, however caused and on any theory of liability, whether in contract, strict 702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectliability, or tort (including negligence), arising in any way out of the use of this software, even if 712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectadvised of the possibility of such damage. 722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project5. CONTACT INFORMATION 742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 752228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectFraunhofer Institute for Integrated Circuits IIS 762228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAttention: Audio and Multimedia Departments - FDK AAC LL 772228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAm Wolfsmantel 33 782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project91058 Erlangen, Germany 792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectwww.iis.fraunhofer.de/amm 812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectamm-info@iis.fraunhofer.de 822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project----------------------------------------------------------------------------------------------------------- */ 832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/***************************** MPEG-4 AAC Decoder ************************** 852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project Author(s): Josef Hoepfl 872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project Description: long/short-block decoding 882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project******************************************************************************/ 902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "block.h" 922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "aac_rom.h" 942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "FDK_bitstream.h" 952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "FDK_tools_rom.h" 962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "aacdec_hcr.h" 1012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "rvlc.h" 1022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#if defined(__arm__) 1052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "arm/block_arm.cpp" 1062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#endif 1072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/*! 1092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project \brief Read escape sequence of codeword 1102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project The function reads the escape sequence from the bitstream, 1122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if the absolute value of the quantized coefficient has the 1132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project value 16. 1142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project \return quantized coefficient 1162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project*/ 1172228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectLONG CBlock_GetEscape(HANDLE_FDK_BITSTREAM bs, /*!< pointer to bitstream */ 1182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const LONG q) /*!< quantized coefficient */ 1192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 1202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project LONG i, off, neg ; 1212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (q < 0) 1232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 1242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (q != -16) return q; 1252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project neg = 1; 1262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 1272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else 1282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 1292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (q != +16) return q; 1302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project neg = 0; 1312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 1322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i=4; ; i++) 1342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 1352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (FDKreadBits(bs,1) == 0) 1362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 1372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 1382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (i > 16) 1402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 1412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (i - 16 > CACHE_BITS) { /* cannot read more than "CACHE_BITS" bits at once in the function FDKreadBits() */ 1422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return (MAX_QUANTIZED_VALUE + 1); /* returning invalid value that will be captured later */ 1432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 1442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project off = FDKreadBits(bs,i-16) << 16; 1462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project off |= FDKreadBits(bs,16); 1472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 1482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else 1492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 1502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project off = FDKreadBits(bs,i); 1512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 1522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project i = off + (1 << i); 1542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (neg) i = -i; 1562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return i; 1582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 1592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1602228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAAC_DECODER_ERROR CBlock_ReadScaleFactorData( 1612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CAacDecoderChannelInfo *pAacDecoderChannelInfo, 1622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project HANDLE_FDK_BITSTREAM bs, 1632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT flags 1642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 1652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 1662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int temp; 1672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int band; 1682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int group; 1692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int position = 0; /* accu for intensity delta coding */ 1702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int factor = pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain; /* accu for scale factor delta coding */ 1712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR *pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; 1722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SHORT *pScaleFactor = pAacDecoderChannelInfo->pDynData->aScaleFactor; 1732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const CodeBookDescription *hcb =&AACcodeBookDescriptionTable[BOOKSCL]; 1742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); 1762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++) 1772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 1782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (band=0; band < ScaleFactorBandsTransmitted; band++) 1792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 1802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project switch (pCodeBook[group*16+band]) { 1812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case ZERO_HCB: /* zero book */ 1832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pScaleFactor[group*16+band] = 0; 1842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 1852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project default: /* decode scale factor */ 1872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 1882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project temp = CBlock_DecodeHuffmanWord(bs,hcb); 1892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project factor += temp - 60; /* MIDFAC 1.5 dB */ 1902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 1912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pScaleFactor[group*16+band] = factor - 100; 1922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 1932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 1942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case INTENSITY_HCB: /* intensity steering */ 1952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case INTENSITY_HCB2: 1962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project temp = CBlock_DecodeHuffmanWord(bs,hcb); 1972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project position += temp - 60; 1982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pScaleFactor[group*16+band] = position - 100; 1992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 2002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case NOISE_HCB: /* PNS */ 2022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (flags & (AC_MPS_RES|AC_USAC|AC_RSVD50)) { 2032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_PARSE_ERROR; 2042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CPns_Read( &pAacDecoderChannelInfo->data.aac.PnsData, bs, hcb, pAacDecoderChannelInfo->pDynData->aScaleFactor, pAacDecoderChannelInfo->pDynData->RawDataInfo.GlobalGain, band, group); 2062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 2072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_OK; 2122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 2132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid CBlock_ScaleSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo) 2152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 2162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int band; 2172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int window; 2182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const SHORT * RESTRICT pSfbScale = pAacDecoderChannelInfo->pDynData->aSfbScale; 2192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SHORT * RESTRICT pSpecScale = pAacDecoderChannelInfo->specScale; 2202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int groupwin,group; 2212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const SHORT * RESTRICT BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); 2222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SPECTRAL_PTR RESTRICT pSpectralCoefficient = pAacDecoderChannelInfo->pSpectralCoefficient; 2232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear(pSpecScale, 8*sizeof(SHORT)); 2262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int max_band = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); 2282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (window=0, group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++) 2292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 2302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (groupwin=0; groupwin < GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); groupwin++, window++) 2312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 2322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int SpecScale_window = pSpecScale[window]; 2332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL *pSpectrum = SPEC(pSpectralCoefficient, window, pAacDecoderChannelInfo->granuleLength); 2342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* find scaling for current window */ 2362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (band=0; band < max_band; band++) 2372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 2382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SpecScale_window = fMax(SpecScale_window, (int)pSfbScale[window*16+band]); 2392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (pAacDecoderChannelInfo->pDynData->TnsData.Active) { 2422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SpecScale_window += TNS_SCALE; 2432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* store scaling of current window */ 2462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pSpecScale[window] = SpecScale_window; 2472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#ifdef FUNCTION_CBlock_ScaleSpectralData_func1 2492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CBlock_ScaleSpectralData_func1(pSpectrum, max_band, BandOffsets, SpecScale_window, pSfbScale, window); 2512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#else /* FUNCTION_CBlock_ScaleSpectralData_func1 */ 2532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (band=0; band < max_band; band++) 2542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 2552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int scale = SpecScale_window - pSfbScale[window*16+band]; 2562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (scale) 2572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 2582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* following relation can be used for optimizations: (BandOffsets[i]%4) == 0 for all i */ 2592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int max_index = BandOffsets[band+1]; 2602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (int index = BandOffsets[band]; index < max_index; index++) 2612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 2622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pSpectrum[index] >>= scale; 2632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#endif /* FUNCTION_CBlock_ScaleSpectralData_func1 */ 2672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 2692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 2712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2722228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAAC_DECODER_ERROR CBlock_ReadSectionData(HANDLE_FDK_BITSTREAM bs, 2732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CAacDecoderChannelInfo *pAacDecoderChannelInfo, 2742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const SamplingRateInfo *pSamplingRateInfo, 2752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const UINT flags) 2762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 2772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int top, band; 2782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int sect_len, sect_len_incr; 2792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int group; 2802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR sect_cb; 2812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR *pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; 2822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* HCR input (long) */ 2832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SHORT *pNumLinesInSec = pAacDecoderChannelInfo->pDynData->specificTo.aac.aNumLineInSec4Hcr; 2842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int numLinesInSecIdx = 0; 2852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR *pHcrCodeBook = pAacDecoderChannelInfo->pDynData->specificTo.aac.aCodeBooks4Hcr; 2862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const SHORT *BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); 2872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderChannelInfo->pDynData->specificTo.aac.numberSection = 0; 2882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project AAC_DECODER_ERROR ErrorStatus = AAC_DEC_OK; 2892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear(pCodeBook, sizeof(UCHAR)*(8*16)); 2912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int nbits = (IsLongBlock(&pAacDecoderChannelInfo->icsInfo) == 1) ? 5 : 3; 2932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int sect_esc_val = (1 << nbits) - 1 ; 2952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 2962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); 2972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (group=0; group<GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++) 2982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 2992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (band=0; band < ScaleFactorBandsTransmitted; ) 3002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 3012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project sect_len = 0; 3022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( flags & AC_ER_VCB11 ) { 3032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project sect_cb = (UCHAR) FDKreadBits(bs,5); 3042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else 3062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project sect_cb = (UCHAR) FDKreadBits(bs,4); 3072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( ((flags & AC_ER_VCB11) == 0) || ( sect_cb < 11 ) || ((sect_cb > 11) && (sect_cb < 16)) ) { 3092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project sect_len_incr = FDKreadBits(bs, nbits); 3102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project while (sect_len_incr == sect_esc_val) 3112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 3122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project sect_len += sect_esc_val; 3132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project sect_len_incr = FDKreadBits(bs, nbits); 3142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else { 3172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project sect_len_incr = 1; 3182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project sect_len += sect_len_incr; 3212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project top = band + sect_len; 3242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (flags & AC_ER_HCR) { 3262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* HCR input (long) -- collecting sideinfo (for HCR-_long_ only) */ 3272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pNumLinesInSec[numLinesInSecIdx] = BandOffsets[top] - BandOffsets[band]; 3282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project numLinesInSecIdx++; 3292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (numLinesInSecIdx >= MAX_SFB_HCR) { 3302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_PARSE_ERROR; 3312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( 3332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (sect_cb == BOOKSCL) ) 3342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 3352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_INVALID_CODE_BOOK; 3362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } else { 3372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project *pHcrCodeBook++ = sect_cb; 3382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderChannelInfo->pDynData->specificTo.aac.numberSection++; 3402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Check spectral line limits */ 3432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (IsLongBlock( &(pAacDecoderChannelInfo->icsInfo) )) 3442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 3452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (top > 64) { 3462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_DECODE_FRAME_ERROR; 3472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } else { /* short block */ 3492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (top + group*16 > (8 * 16)) { 3502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_DECODE_FRAME_ERROR; 3512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Check if decoded codebook index is feasible */ 3552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( (sect_cb == BOOKSCL) 3562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project || ( (sect_cb == INTENSITY_HCB || sect_cb == INTENSITY_HCB2) && pAacDecoderChannelInfo->pDynData->RawDataInfo.CommonWindow == 0) 3572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 3582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 3592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_INVALID_CODE_BOOK; 3602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Store codebook index */ 3632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (; band < top; band++) 3642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 3652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pCodeBook[group*16+band] = sect_cb; 3662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 3692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return ErrorStatus; 3722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 3732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/* mso: provides a faster way to i-quantize a whole band in one go */ 3752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project/** 3772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \brief inverse quantize one sfb. Each value of the sfb is processed according to the 3782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * formula: spectrum[i] = Sign(spectrum[i]) * Matissa(spectrum[i])^(4/3) * 2^(lsb/4). 3792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param spectrum pointer to first line of the sfb to be inverse quantized. 3802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param noLines number of lines belonging to the sfb. 3812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param lsb last 2 bits of the scale factor of the sfb. 3822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project * \param scale max allowed shift scale for the sfb. 3832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 3842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic 3852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid InverseQuantizeBand( FIXP_DBL * RESTRICT spectrum, 3862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT noLines, 3872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT lsb, 3882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT scale ) 3892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 3902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const FIXP_DBL * RESTRICT InverseQuantTabler=(FIXP_DBL *)InverseQuantTable; 3912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const FIXP_DBL * RESTRICT MantissaTabler=(FIXP_DBL *)MantissaTable[lsb]; 3922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const SCHAR* RESTRICT ExponentTabler=(SCHAR*)ExponentTable[lsb]; 3932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL *ptr = spectrum; 3952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL signedValue; 3962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 3972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDK_ASSERT(noLines>2); 3982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (INT i=noLines; i--; ) 3992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((signedValue = *ptr++) != FL2FXCONST_DBL(0)) 4012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL value = fAbs(signedValue); 4032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT freeBits = CntLeadingZeros(value); 4042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT exponent = 32 - freeBits; 4052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT x = (UINT) (LONG)value << (INT) freeBits; 4072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project x <<= 1; /* shift out sign bit to avoid masking later on */ 4082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT tableIndex = x >> 24; 4092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project x = (x >> 20) & 0x0F; 4102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT r0=(UINT)(LONG)InverseQuantTabler[tableIndex+0]; 4122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT r1=(UINT)(LONG)InverseQuantTabler[tableIndex+1]; 4132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UINT temp= (r1 - r0)*x + (r0 << 4); 4142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project value = fMultDiv2((FIXP_DBL)temp, MantissaTabler[exponent]); 4162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* + 1 compensates fMultDiv2() */ 4182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project scaleValueInPlace(&value, scale + ExponentTabler[exponent] + 1); 4192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project signedValue = (signedValue < (FIXP_DBL)0) ? -value : value; 4212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ptr[-1] = signedValue; 4222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 4252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4262228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAAC_DECODER_ERROR CBlock_InverseQuantizeSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo) 4272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 4282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int window, group, groupwin, band; 4292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); 4302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR *RESTRICT pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; 4312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SHORT *RESTRICT pSfbScale = pAacDecoderChannelInfo->pDynData->aSfbScale; 4322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SHORT *RESTRICT pScaleFactor = pAacDecoderChannelInfo->pDynData->aScaleFactor; 4332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const SHORT *RESTRICT BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); 4342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear(pAacDecoderChannelInfo->pDynData->aSfbScale, (8*16)*sizeof(SHORT)); 4362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (window=0, group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++) 4382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (groupwin=0; groupwin < GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); groupwin++, window++) 4402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* inverse quantization */ 4422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (band=0; band < ScaleFactorBandsTransmitted; band++) 4432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL *pSpectralCoefficient = SPEC(pAacDecoderChannelInfo->pSpectralCoefficient, window, pAacDecoderChannelInfo->granuleLength) + BandOffsets[band]; 4452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int noLines = BandOffsets[band+1] - BandOffsets[band]; 4472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int bnds = group*16+band; 4482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int i; 4492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((pCodeBook[bnds] == ZERO_HCB) 4512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project || (pCodeBook[bnds] == INTENSITY_HCB) 4522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project || (pCodeBook[bnds] == INTENSITY_HCB2) 4532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ) 4542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project continue; 4552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (pCodeBook[bnds] == NOISE_HCB) 4572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Leave headroom for PNS values. + 1 because ceil(log2(2^(0.25*3))) = 1, 4592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project worst case of additional headroom required because of the scalefactor. */ 4602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pSfbScale[window*16+band] = (pScaleFactor [bnds] >> 2) + 1 ; 4612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project continue; 4622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Find max spectral line value of the current sfb */ 4652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL locMax = (FIXP_DBL)0; 4662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i = noLines; i-- ; ) { 4682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Expensive memory access */ 4692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project locMax = fMax(fixp_abs(pSpectralCoefficient[i]), locMax); 4702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Cheap robustness improvement - Do not remove!!! */ 4732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (fixp_abs(locMax) > (FIXP_DBL)MAX_QUANTIZED_VALUE) { 4742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_DECODE_FRAME_ERROR; 4752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* 4782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project The inverse quantized spectral lines are defined by: 4792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pSpectralCoefficient[i] = Sign(pSpectralCoefficient[i]) * 2^(0.25*pScaleFactor[bnds]) * pSpectralCoefficient[i]^(4/3) 4802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project This is equivalent to: 4812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pSpectralCoefficient[i] = Sign(pSpectralCoefficient[i]) * (2^(pScaleFactor[bnds] % 4) * pSpectralCoefficient[i]^(4/3)) 4822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pSpectralCoefficient_e[i] += pScaleFactor[bnds]/4 4832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 4842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 4852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int msb = pScaleFactor [bnds] >> 2 ; 4862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int lsb = pScaleFactor [bnds] & 0x03 ; 4872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int scale = GetScaleFromValue(locMax, lsb); 4892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pSfbScale[window*16+band] = msb - scale; 4912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project InverseQuantizeBand(pSpectralCoefficient, noLines, lsb, scale); 4922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 4962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 4982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_OK; 4992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 5002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5022228e360595641dd906bf1773307f43d304f5b2The Android Open Source ProjectAAC_DECODER_ERROR CBlock_ReadSpectralData(HANDLE_FDK_BITSTREAM bs, 5032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CAacDecoderChannelInfo *pAacDecoderChannelInfo, 5042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const SamplingRateInfo *pSamplingRateInfo, 5052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const UINT flags) 5062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 5072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int i,index; 5082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int window,group,groupwin,groupoffset,band; 5092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR *RESTRICT pCodeBook = pAacDecoderChannelInfo->pDynData->aCodeBook; 5102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const SHORT *RESTRICT BandOffsets = GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo); 5112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SPECTRAL_PTR pSpectralCoefficient = pAacDecoderChannelInfo->pSpectralCoefficient; 5132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL locMax; 5142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int ScaleFactorBandsTransmitted = GetScaleFactorBandsTransmitted(&pAacDecoderChannelInfo->icsInfo); 5162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDK_ASSERT(BandOffsets != NULL); 5182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKmemclear(pSpectralCoefficient, sizeof(SPECTRUM)); 5202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( (flags & AC_ER_HCR) == 0 ) 5222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 5232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project groupoffset = 0; 5242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* plain huffman decoder short */ 5262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (group=0; group < GetWindowGroups(&pAacDecoderChannelInfo->icsInfo); group++) 5272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 5282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (band=0; band < ScaleFactorBandsTransmitted; band++) 5292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 5302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int bnds = group*16+band; 5312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project UCHAR currentCB = pCodeBook[bnds]; 5322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* patch to run plain-huffman-decoder with vcb11 input codebooks (LAV-checking might be possible below using the virtual cb and a LAV-table) */ 5342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ((currentCB >= 16) && (currentCB <= 31)) { 5352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pCodeBook[bnds] = currentCB = 11; 5362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( !((currentCB == ZERO_HCB) 5382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project || (currentCB == NOISE_HCB) 5392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project || (currentCB == INTENSITY_HCB) 5402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project || (currentCB == INTENSITY_HCB2)) ) 5412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 5422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const CodeBookDescription *hcb = &AACcodeBookDescriptionTable[currentCB]; 5432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int step = hcb->Dimension; 5442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int offset = hcb->Offset; 5452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int bits = hcb->numBits; 5462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int mask = (1<<bits)-1; 5472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (groupwin=0; groupwin < GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); groupwin++) 5492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 5502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project window = groupoffset + groupwin; 5512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL *mdctSpectrum = SPEC(pSpectralCoefficient, window, pAacDecoderChannelInfo->granuleLength); 5532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project locMax = (FIXP_DBL)0 ; 5552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (index=BandOffsets[band]; index < BandOffsets[band+1]; index+=step) 5572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 5582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int idx = CBlock_DecodeHuffmanWord(bs,hcb); 5592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i=0; i<step; i++) { 5612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL tmp; 5622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp = (FIXP_DBL)((idx & mask)-offset); 5642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project idx >>= bits; 5652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (offset == 0) { 5672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (tmp != FIXP_DBL(0)) 5682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp = (FDKreadBits(bs,1))? -tmp : tmp; 5692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project mdctSpectrum[index+i] = tmp; 5712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (currentCB == ESCBOOK) 5742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 5752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project mdctSpectrum[index+0] = (FIXP_DBL)CBlock_GetEscape(bs, (LONG)mdctSpectrum[index+0]); 5762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project mdctSpectrum[index+1] = (FIXP_DBL)CBlock_GetEscape(bs, (LONG)mdctSpectrum[index+1]); 5772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project groupoffset += GetWindowGroupLength(&pAacDecoderChannelInfo->icsInfo,group); 5842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* plain huffman decoding (short) finished */ 5862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 5872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* HCR - Huffman Codeword Reordering short */ 5882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project else /* if ( flags & AC_ER_HCR ) */ 5892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 5902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project H_HCR_INFO hHcr = &pAacDecoderChannelInfo->pComData->overlay.aac.erHcrInfo; 5912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int hcrStatus = 0; 5922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int hcrConcealWholeFrame = 0; 5932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* advanced Huffman decoding starts here (HCR decoding :) */ 5952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData != 0 ) { 5962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 5972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* HCR initialization short */ 5982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hcrStatus = HcrInit(hHcr, pAacDecoderChannelInfo, pSamplingRateInfo, bs); 5992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (hcrStatus != 0) { 6012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#if HCR_ERROR_CONCEALMENT 6022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hcrConcealWholeFrame = 1; 6032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_DECODE_FRAME_ERROR; /* concealment is muting in the first step, therefore return now */ 6042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project // hcr decoding is not skipped because of returning above 6052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#else 6062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_DECODE_FRAME_ERROR; 6072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#endif 6082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 6092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* HCR decoding short */ 6112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project hcrStatus = HcrDecoder(hHcr, pAacDecoderChannelInfo, pSamplingRateInfo, bs); 6122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#if HCR_ERROR_CONCEALMENT 6152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project HcrMuteErroneousLines(hHcr); 6162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#else 6172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_DECODE_FRAME_ERROR; 6182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#endif /* HCR_ERROR_CONCEALMENT */ 6192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKpushFor (bs, pAacDecoderChannelInfo->pDynData->specificTo.aac.lenOfReorderedSpectralData); 6212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 6222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 6232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* HCR - Huffman Codeword Reordering short finished */ 6242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( IsLongBlock(&pAacDecoderChannelInfo->icsInfo) && !(flags & (AC_ELD|AC_SCALABLE)) ) 6282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 6292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* apply pulse data */ 6302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CPulseData_Apply(&pAacDecoderChannelInfo->pDynData->specificTo.aac.PulseData, 6312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project GetScaleFactorBandOffsets(&pAacDecoderChannelInfo->icsInfo, pSamplingRateInfo), 6322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SPEC_LONG(pSpectralCoefficient)); 6332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 6342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return AAC_DEC_OK; 6372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 6382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid ApplyTools ( CAacDecoderChannelInfo *pAacDecoderChannelInfo[], 6422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const SamplingRateInfo *pSamplingRateInfo, 6432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const UINT flags, 6442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int channel ) 6452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 6462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if ( !(flags & (AC_USAC|AC_RSVD50|AC_MPS_RES)) ) { 6482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CPns_Apply( 6492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project &pAacDecoderChannelInfo[channel]->data.aac.PnsData, 6502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project &pAacDecoderChannelInfo[channel]->icsInfo, 6512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderChannelInfo[channel]->pSpectralCoefficient, 6522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderChannelInfo[channel]->specScale, 6532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderChannelInfo[channel]->pDynData->aScaleFactor, 6542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pSamplingRateInfo, 6552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderChannelInfo[channel]->granuleLength, 6562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project channel 6572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ); 6582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 6592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CTns_Apply ( 6612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project &pAacDecoderChannelInfo[channel]->pDynData->TnsData, 6622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project &pAacDecoderChannelInfo[channel]->icsInfo, 6632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderChannelInfo[channel]->pSpectralCoefficient, 6642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pSamplingRateInfo, 6652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderChannelInfo[channel]->granuleLength 6662228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ); 6672228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 6682228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6692228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectstatic 6702228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectint getWindow2Nr(int length, int shape) 6712228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 6722228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int nr = 0; 6732228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6742228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project if (shape == 2) { 6752228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Low Overlap, 3/4 zeroed */ 6762228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project nr = (length * 3)>>2; 6772228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 6782228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6792228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project return nr; 6802228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 6812228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6822228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid CBlock_FrequencyToTime(CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, 6832228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CAacDecoderChannelInfo *pAacDecoderChannelInfo, 6842228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT_PCM outSamples[], 6852228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const SHORT frameLen, 6862228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int stride, 6872228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const int frameOk, 6882228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL *pWorkBuffer1 ) 6892228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 6902228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int fr, fl, tl, nSamples, nSpec; 6912228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6922228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project /* Determine left slope length (fl), right slope length (fr) and transform length (tl). 6932228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project USAC: The slope length may mismatch with the previous frame in case of LPD / FD 6942228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project transitions. The adjustment is handled by the imdct implementation. 6952228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project */ 6962228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tl = frameLen; 6972228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project nSpec = 1; 6982228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 6992228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project switch( pAacDecoderChannelInfo->icsInfo.WindowSequence ) { 7002228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project default: 7012228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case OnlyLongSequence: 7022228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fl = frameLen; 7032228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fr = frameLen - getWindow2Nr(frameLen, GetWindowShape(&pAacDecoderChannelInfo->icsInfo)); 7042228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 7052228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case LongStopSequence: 7062228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fl = frameLen >> 3; 7072228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fr = frameLen; 7082228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 7092228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case LongStartSequence: /* or StopStartSequence */ 7102228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fl = frameLen; 7112228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fr = frameLen >> 3; 7122228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 7132228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project case EightShortSequence: 7142228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fl = fr = frameLen >> 3; 7152228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tl >>= 3; 7162228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project nSpec = 8; 7172228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project break; 7182228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 7192228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7202228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 7212228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project int i; 7222228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7232228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project { 7242228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FIXP_DBL *tmp = pAacDecoderChannelInfo->pComData->workBufferCore1->mdctOutTemp; 7252228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7262228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project nSamples = imdct_block( 7272228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project &pAacDecoderStaticChannelInfo->IMdct, 7282228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tmp, 7292228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient), 7302228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderChannelInfo->specScale, 7312228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project nSpec, 7322228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project frameLen, 7332228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project tl, 7342228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKgetWindowSlope(fl, GetWindowShape(&pAacDecoderChannelInfo->icsInfo)), 7352228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fl, 7362228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDKgetWindowSlope(fr, GetWindowShape(&pAacDecoderChannelInfo->icsInfo)), 7372228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project fr, 7382228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project (FIXP_DBL)0 ); 7392228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7402228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project for (i=0; i<frameLen; i++) { 7412228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project outSamples[i*stride] = IMDCT_SCALE(tmp[i]); 7422228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 7432228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 7442228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project } 7452228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7462228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project FDK_ASSERT(nSamples == frameLen); 7472228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7482228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 7492228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project 7502228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project#include "ldfiltbank.h" 7512228e360595641dd906bf1773307f43d304f5b2The Android Open Source Projectvoid CBlock_FrequencyToTimeLowDelay( CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo, 7522228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project CAacDecoderChannelInfo *pAacDecoderChannelInfo, 7532228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project INT_PCM outSamples[], 7542228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const short frameLen, 7552228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project const char stride ) 7562228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project{ 7572228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project InvMdctTransformLowDelay_fdk ( 7582228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project SPEC_LONG(pAacDecoderChannelInfo->pSpectralCoefficient), 7592228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderChannelInfo->specScale[0], 7602228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project outSamples, 7612228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project pAacDecoderStaticChannelInfo->pOverlapBuffer, 7622228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project stride, 7632228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project frameLen 7642228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project ); 7652228e360595641dd906bf1773307f43d304f5b2The Android Open Source Project} 766