diff options
author | Fraunhofer IIS FDK <audio-fdk@iis.fraunhofer.de> | 2018-02-26 20:17:00 +0100 |
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committer | Jean-Michel Trivi <jmtrivi@google.com> | 2018-04-19 11:21:15 -0700 |
commit | 6cfabd35363c3ef5e3b209b867169a500b3ccc3c (patch) | |
tree | 01c0a19f2735e8b5d2407555fe992d4230d089eb /libSACdec/src/sac_tsd.cpp | |
parent | 6288a1e34c4dede4c2806beb1736ece6580558c7 (diff) | |
download | fdk-aac-6cfabd35363c3ef5e3b209b867169a500b3ccc3c.tar.gz fdk-aac-6cfabd35363c3ef5e3b209b867169a500b3ccc3c.tar.bz2 fdk-aac-6cfabd35363c3ef5e3b209b867169a500b3ccc3c.zip |
Upgrade to FDKv2
Bug: 71430241
Test: CTS DecoderTest and DecoderTestAacDrc
original-Change-Id: Iaa20f749b8a04d553b20247cfe1a8930ebbabe30
Apply clang-format also on header files.
original-Change-Id: I14de1ef16bbc79ec0283e745f98356a10efeb2e4
Fixes for MPEG-D DRC
original-Change-Id: If1de2d74bbbac84b3f67de3b88b83f6a23b8a15c
Catch unsupported tw_mdct at an early stage
original-Change-Id: Ied9dd00d754162a0e3ca1ae3e6b854315d818afe
Fixing PVC transition frames
original-Change-Id: Ib75725abe39252806c32d71176308f2c03547a4e
Move qmf bands sanity check
original-Change-Id: Iab540c3013c174d9490d2ae100a4576f51d8dbc4
Initialize scaling variable
original-Change-Id: I3c4087101b70e998c71c1689b122b0d7762e0f9e
Add 16 qmf band configuration to getSlotNrgHQ()
original-Change-Id: I49a5d30f703a1b126ff163df9656db2540df21f1
Always apply byte alignment at the end of the AudioMuxElement
original-Change-Id: I42d560287506d65d4c3de8bfe3eb9a4ebeb4efc7
Setup SBR element only if no parse error exists
original-Change-Id: I1915b73704bc80ab882b9173d6bec59cbd073676
Additional array index check in HCR
original-Change-Id: I18cc6e501ea683b5009f1bbee26de8ddd04d8267
Fix fade-in index selection in concealment module
original-Change-Id: Ibf802ed6ed8c05e9257e1f3b6d0ac1162e9b81c1
Enable explicit backward compatible parser for AAC_LD
original-Change-Id: I27e9c678dcb5d40ed760a6d1e06609563d02482d
Skip spatial specific config in explicit backward compatible ASC
original-Change-Id: Iff7cc365561319e886090cedf30533f562ea4d6e
Update flags description in decoder API
original-Change-Id: I9a5b4f8da76bb652f5580cbd3ba9760425c43830
Add QMF domain reset function
original-Change-Id: I4f89a8a2c0277d18103380134e4ed86996e9d8d6
DRC upgrade v2.1.0
original-Change-Id: I5731c0540139dab220094cd978ef42099fc45b74
Fix integer overflow in sqrtFixp_lookup()
original-Change-Id: I429a6f0d19aa2cc957e0f181066f0ca73968c914
Fix integer overflow in invSqrtNorm2()
original-Change-Id: I84de5cbf9fb3adeb611db203fe492fabf4eb6155
Fix integer overflow in GenerateRandomVector()
original-Change-Id: I3118a641008bd9484d479e5b0b1ee2b5d7d44d74
Fix integer overflow in adjustTimeSlot_EldGrid()
original-Change-Id: I29d503c247c5c8282349b79df940416a512fb9d5
Fix integer overflow in FDKsbrEnc_codeEnvelope()
original-Change-Id: I6b34b61ebb9d525b0c651ed08de2befc1f801449
Follow-up on: Fix integer overflow in adjustTimeSlot_EldGrid()
original-Change-Id: I6f8f578cc7089e5eb7c7b93e580b72ca35ad689a
Fix integer overflow in get_pk_v2()
original-Change-Id: I63375bed40d45867f6eeaa72b20b1f33e815938c
Fix integer overflow in Syn_filt_zero()
original-Change-Id: Ie0c02fdfbe03988f9d3b20d10cd9fe4c002d1279
Fix integer overflow in CFac_CalcFacSignal()
original-Change-Id: Id2d767c40066c591b51768e978eb8af3b803f0c5
Fix integer overflow in FDKaacEnc_FDKaacEnc_calcPeNoAH()
original-Change-Id: Idcbd0f4a51ae2550ed106aa6f3d678d1f9724841
Fix integer overflow in sbrDecoder_calculateGainVec()
original-Change-Id: I7081bcbe29c5cede9821b38d93de07c7add2d507
Fix integer overflow in CLpc_SynthesisLattice()
original-Change-Id: I4a95ddc18de150102352d4a1845f06094764c881
Fix integer overflow in Pred_Lt4()
original-Change-Id: I4dbd012b2de7d07c3e70a47b92e3bfae8dbc750a
Fix integer overflow in FDKsbrEnc_InitSbrFastTransientDetector()
original-Change-Id: I788cbec1a4a00f44c2f3a72ad7a4afa219807d04
Fix unsigned integer overflow in FDKaacEnc_WriteBitstream()
original-Change-Id: I68fc75166e7d2cd5cd45b18dbe3d8c2a92f1822a
Fix unsigned integer overflow in FDK_MetadataEnc_Init()
original-Change-Id: Ie8d025f9bcdb2442c704bd196e61065c03c10af4
Fix overflow in pseudo random number generators
original-Change-Id: I3e2551ee01356297ca14e3788436ede80bd5513c
Fix unsigned integer overflow in sbrDecoder_Parse()
original-Change-Id: I3f231b2f437e9c37db4d5b964164686710eee971
Fix unsigned integer overflow in longsub()
original-Change-Id: I73c2bc50415cac26f1f5a29e125bbe75f9180a6e
Fix unsigned integer overflow in CAacDecoder_DecodeFrame()
original-Change-Id: Ifce2db4b1454b46fa5f887e9d383f1cc43b291e4
Fix overflow at CLpdChannelStream_Read()
original-Change-Id: Idb9d822ce3a4272e4794b643644f5434e2d4bf3f
Fix unsigned integer overflow in Hcr_State_BODY_SIGN_ESC__ESC_WORD()
original-Change-Id: I1ccf77c0015684b85534c5eb97162740a870b71c
Fix unsigned integer overflow in UsacConfig_Parse()
original-Change-Id: Ie6d27f84b6ae7eef092ecbff4447941c77864d9f
Fix unsigned integer overflow in aacDecoder_drcParse()
original-Change-Id: I713f28e883eea3d70b6fa56a7b8f8c22bcf66ca0
Fix unsigned integer overflow in aacDecoder_drcReadCompression()
original-Change-Id: Ia34dfeb88c4705c558bce34314f584965cafcf7a
Fix unsigned integer overflow in CDataStreamElement_Read()
original-Change-Id: Iae896cc1d11f0a893d21be6aa90bd3e60a2c25f0
Fix unsigned integer overflow in transportDec_AdjustEndOfAccessUnit()
original-Change-Id: I64cf29a153ee784bb4a16fdc088baabebc0007dc
Fix unsigned integer overflow in transportDec_GetAuBitsRemaining()
original-Change-Id: I975b3420faa9c16a041874ba0db82e92035962e4
Fix unsigned integer overflow in extractExtendedData()
original-Change-Id: I2a59eb09e2053cfb58dfb75fcecfad6b85a80a8f
Fix signed integer overflow in CAacDecoder_ExtPayloadParse()
original-Change-Id: I4ad5ca4e3b83b5d964f1c2f8c5e7b17c477c7929
Fix unsigned integer overflow in CAacDecoder_DecodeFrame()
original-Change-Id: I29a39df77d45c52a0c9c5c83c1ba81f8d0f25090
Follow-up on: Fix integer overflow in CLpc_SynthesisLattice()
original-Change-Id: I8fb194ffc073a3432a380845be71036a272d388f
Fix signed integer overflow in _interpolateDrcGain()
original-Change-Id: I879ec9ab14005069a7c47faf80e8bc6e03d22e60
Fix unsigned integer overflow in FDKreadBits()
original-Change-Id: I1f47a6a8037ff70375aa8844947d5681bb4287ad
Fix unsigned integer overflow in FDKbyteAlign()
original-Change-Id: Id5f3a11a0c9e50fc6f76ed6c572dbd4e9f2af766
Fix unsigned integer overflow in FDK_get32()
original-Change-Id: I9d33b8e97e3d38cbb80629cb859266ca0acdce96
Fix unsigned integer overflow in FDK_pushBack()
original-Change-Id: Ic87f899bc8c6acf7a377a8ca7f3ba74c3a1e1c19
Fix unsigned integer overflow in FDK_pushForward()
original-Change-Id: I3b754382f6776a34be1602e66694ede8e0b8effc
Fix unsigned integer overflow in ReadPsData()
original-Change-Id: I25361664ba8139e32bbbef2ca8c106a606ce9c37
Fix signed integer overflow in E_UTIL_residu()
original-Change-Id: I8c3abd1f437ee869caa8fb5903ce7d3d641b6aad
REVERT: Follow-up on: Integer overflow in CLpc_SynthesisLattice().
original-Change-Id: I3d340099acb0414795c8dfbe6362bc0a8f045f9b
Follow-up on: Fix integer overflow in CLpc_SynthesisLattice()
original-Change-Id: I4aedb8b3a187064e9f4d985175aa55bb99cc7590
Follow-up on: Fix unsigned integer overflow in aacDecoder_drcParse()
original-Change-Id: I2aa2e13916213bf52a67e8b0518e7bf7e57fb37d
Fix integer overflow in acelp
original-Change-Id: Ie6390c136d84055f8b728aefbe4ebef6e029dc77
Fix unsigned integer overflow in aacDecoder_UpdateBitStreamCounters()
original-Change-Id: I391ffd97ddb0b2c184cba76139bfb356a3b4d2e2
Adjust concealment default settings
original-Change-Id: I6a95db935a327c47df348030bcceafcb29f54b21
Saturate estimatedStartPos
original-Change-Id: I27be2085e0ae83ec9501409f65e003f6bcba1ab6
Negative shift exponent in _interpolateDrcGain()
original-Change-Id: I18edb26b26d002aafd5e633d4914960f7a359c29
Negative shift exponent in calculateICC()
original-Change-Id: I3dcd2ae98d2eb70ee0d59750863cbb2a6f4f8aba
Too large shift exponent in FDK_put()
original-Change-Id: Ib7d9aaa434d2d8de4a13b720ca0464b31ca9b671
Too large shift exponent in CalcInvLdData()
original-Change-Id: I43e6e78d4cd12daeb1dcd5d82d1798bdc2550262
Member access within null pointer of type SBR_CHANNEL
original-Change-Id: Idc5e4ea8997810376d2f36bbdf628923b135b097
Member access within null pointer of type CpePersistentData
original-Change-Id: Ib6c91cb0d37882768e5baf63324e429589de0d9d
Member access within null pointer FDKaacEnc_psyMain()
original-Change-Id: I7729b7f4479970531d9dc823abff63ca52e01997
Member access within null pointer FDKaacEnc_GetPnsParam()
original-Change-Id: I9aa3b9f3456ae2e0f7483dbd5b3dde95fc62da39
Member access within null pointer FDKsbrEnc_EnvEncodeFrame()
original-Change-Id: I67936f90ea714e90b3e81bc0dd1472cc713eb23a
Add HCR sanity check
original-Change-Id: I6c1d9732ebcf6af12f50b7641400752f74be39f7
Fix memory issue for HBE edge case with 8:3 SBR
original-Change-Id: I11ea58a61e69fbe8bf75034b640baee3011e63e9
Additional SBR parametrization sanity check for ELD
original-Change-Id: Ie26026fbfe174c2c7b3691f6218b5ce63e322140
Add MPEG-D DRC channel layout check
original-Change-Id: Iea70a74f171b227cce636a9eac4ba662777a2f72
Additional out-of-bounds checks in MPEG-D DRC
original-Change-Id: Ife4a8c3452c6fde8a0a09e941154a39a769777d4
Change-Id: Ic63cb2f628720f54fe9b572b0cb528e2599c624e
Diffstat (limited to 'libSACdec/src/sac_tsd.cpp')
-rw-r--r-- | libSACdec/src/sac_tsd.cpp | 353 |
1 files changed, 353 insertions, 0 deletions
diff --git a/libSACdec/src/sac_tsd.cpp b/libSACdec/src/sac_tsd.cpp new file mode 100644 index 0000000..30acca8 --- /dev/null +++ b/libSACdec/src/sac_tsd.cpp @@ -0,0 +1,353 @@ +/* ----------------------------------------------------------------------------- +Software License for The Fraunhofer FDK AAC Codec Library for Android + +© Copyright 1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten +Forschung e.V. All rights reserved. + + 1. INTRODUCTION +The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software +that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding +scheme for digital audio. This FDK AAC Codec software is intended to be used on +a wide variety of Android devices. + +AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient +general perceptual audio codecs. AAC-ELD is considered the best-performing +full-bandwidth communications codec by independent studies and is widely +deployed. AAC has been standardized by ISO and IEC as part of the MPEG +specifications. + +Patent licenses for necessary patent claims for the FDK AAC Codec (including +those of Fraunhofer) may be obtained through Via Licensing +(www.vialicensing.com) or through the respective patent owners individually for +the purpose of encoding or decoding bit streams in products that are compliant +with the ISO/IEC MPEG audio standards. Please note that most manufacturers of +Android devices already license these patent claims through Via Licensing or +directly from the patent owners, and therefore FDK AAC Codec software may +already be covered under those patent licenses when it is used for those +licensed purposes only. + +Commercially-licensed AAC software libraries, including floating-point versions +with enhanced sound quality, are also available from Fraunhofer. Users are +encouraged to check the Fraunhofer website for additional applications +information and documentation. + +2. COPYRIGHT LICENSE + +Redistribution and use in source and binary forms, with or without modification, +are permitted without payment of copyright license fees provided that you +satisfy the following conditions: + +You must retain the complete text of this software license in redistributions of +the FDK AAC Codec or your modifications thereto in source code form. + +You must retain the complete text of this software license in the documentation +and/or other materials provided with redistributions of the FDK AAC Codec or +your modifications thereto in binary form. You must make available free of +charge copies of the complete source code of the FDK AAC Codec and your +modifications thereto to recipients of copies in binary form. + +The name of Fraunhofer may not be used to endorse or promote products derived +from this library without prior written permission. + +You may not charge copyright license fees for anyone to use, copy or distribute +the FDK AAC Codec software or your modifications thereto. + +Your modified versions of the FDK AAC Codec must carry prominent notices stating +that you changed the software and the date of any change. For modified versions +of the FDK AAC Codec, the term "Fraunhofer FDK AAC Codec Library for Android" +must be replaced by the term "Third-Party Modified Version of the Fraunhofer FDK +AAC Codec Library for Android." + +3. NO PATENT LICENSE + +NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without +limitation the patents of Fraunhofer, ARE GRANTED BY THIS SOFTWARE LICENSE. +Fraunhofer provides no warranty of patent non-infringement with respect to this +software. + +You may use this FDK AAC Codec software or modifications thereto only for +purposes that are authorized by appropriate patent licenses. + +4. DISCLAIMER + +This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright +holders and contributors "AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, +including but not limited to the implied warranties of merchantability and +fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR +CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, +or consequential damages, including but not limited to procurement of substitute +goods or services; loss of use, data, or profits, or business interruption, +however caused and on any theory of liability, whether in contract, strict +liability, or tort (including negligence), arising in any way out of the use of +this software, even if advised of the possibility of such damage. + +5. CONTACT INFORMATION + +Fraunhofer Institute for Integrated Circuits IIS +Attention: Audio and Multimedia Departments - FDK AAC LL +Am Wolfsmantel 33 +91058 Erlangen, Germany + +www.iis.fraunhofer.de/amm +amm-info@iis.fraunhofer.de +----------------------------------------------------------------------------- */ + +/*********************** MPEG surround decoder library ************************* + + Author(s): Matthias Hildenbrand + + Description: USAC MPS212 Transient Steering Decorrelator (TSD) + +*******************************************************************************/ + +#include "sac_tsd.h" + +#define TSD_START_BAND (7) +#define SIZE_S (4) +#define SIZE_C (5) + +/*** Tables ***/ +RAM_ALIGN +LNK_SECTION_CONSTDATA +static const UCHAR nBitsTsdCW_32slots[32] = { + 5, 9, 13, 16, 18, 20, 22, 24, 25, 26, 27, 28, 29, 29, 30, 30, + 30, 29, 29, 28, 27, 26, 25, 24, 22, 20, 18, 16, 13, 9, 5, 0}; + +RAM_ALIGN +LNK_SECTION_CONSTDATA +static const UCHAR nBitsTsdCW_64slots[64] = { + 6, 11, 16, 20, 23, 27, 30, 33, 35, 38, 40, 42, 44, 46, 48, 49, + 51, 52, 53, 55, 56, 57, 58, 58, 59, 60, 60, 60, 61, 61, 61, 61, + 61, 61, 61, 60, 60, 60, 59, 58, 58, 57, 56, 55, 53, 52, 51, 49, + 48, 46, 44, 42, 40, 38, 35, 33, 30, 27, 23, 20, 16, 11, 6, 0}; + +RAM_ALIGN +LNK_SECTION_CONSTDATA +static const FIXP_STP phiTsd[8] = { + STCP(0x7fffffff, 0x00000000), STCP(0x5a82799a, 0x5a82799a), + STCP(0x00000000, 0x7fffffff), STCP(0xa57d8666, 0x5a82799a), + STCP(0x80000000, 0x00000000), STCP(0xa57d8666, 0xa57d8666), + STCP(0x00000000, 0x80000000), STCP(0x5a82799a, 0xa57d8666), +}; + +/*** Static Functions ***/ +static void longmult1(USHORT a[], USHORT b, USHORT d[], int len) { + int k; + ULONG tmp; + ULONG b0 = (ULONG)b; + + tmp = ((ULONG)a[0]) * b0; + d[0] = (USHORT)tmp; + + for (k = 1; k < len; k++) { + tmp = (tmp >> 16) + ((ULONG)a[k]) * b0; + d[k] = (USHORT)tmp; + } +} + +static void longdiv(USHORT b[], USHORT a, USHORT d[], USHORT *pr, int len) { + ULONG r; + ULONG tmp; + int k; + + FDK_ASSERT(a != 0); + + r = 0; + + for (k = len - 1; k >= 0; k--) { + tmp = ((ULONG)b[k]) + (r << 16); + + if (tmp) { + d[k] = (USHORT)(tmp / a); + r = tmp - d[k] * a; + } else { + d[k] = 0; + } + } + *pr = (USHORT)r; +} + +static void longsub(USHORT a[], USHORT b[], int lena, int lenb) { + int h; + LONG carry = 0; + + FDK_ASSERT(lena >= lenb); + for (h = 0; h < lenb; h++) { + carry += ((LONG)a[h]) - ((LONG)b[h]); + a[h] = (USHORT)carry; + carry = carry >> 16; + } + + for (; h < lena; h++) { + carry = ((LONG)a[h]) + carry; + a[h] = (USHORT)carry; + carry = carry >> 16; + } + + FDK_ASSERT(carry == + 0); /* carry != 0 indicates subtraction underflow, e.g. b > a */ + return; +} + +static int longcompare(USHORT a[], USHORT b[], int len) { + int i; + + for (i = len - 1; i > 0; i--) { + if (a[i] != b[i]) break; + } + return (a[i] >= b[i]) ? 1 : 0; +} + +FDK_INLINE int isTrSlot(const TSD_DATA *pTsdData, const int ts) { + return (pTsdData->bsTsdTrPhaseData[ts] >= 0); +} + +/*** Public Functions ***/ +int TsdRead(HANDLE_FDK_BITSTREAM hBs, const int numSlots, TSD_DATA *pTsdData) { + int nBitsTrSlots = 0; + int bsTsdNumTrSlots; + const UCHAR *nBitsTsdCW_tab = NULL; + + switch (numSlots) { + case 32: + nBitsTrSlots = 4; + nBitsTsdCW_tab = nBitsTsdCW_32slots; + break; + case 64: + nBitsTrSlots = 5; + nBitsTsdCW_tab = nBitsTsdCW_64slots; + break; + default: + return 1; + } + + /*** Read TempShapeData for bsTempShapeConfig == 3 ***/ + pTsdData->bsTsdEnable = FDKreadBit(hBs); + if (!pTsdData->bsTsdEnable) { + return 0; + } + + /*** Parse/Decode TsdData() ***/ + pTsdData->numSlots = numSlots; + + bsTsdNumTrSlots = FDKreadBits(hBs, nBitsTrSlots); + + /* Decode transient slot positions */ + { + int nBitsTsdCW = (int)nBitsTsdCW_tab[bsTsdNumTrSlots]; + SCHAR *phaseData = pTsdData->bsTsdTrPhaseData; + int p = bsTsdNumTrSlots + 1; + int k, h; + USHORT s[SIZE_S] = {0}; + USHORT c[SIZE_C] = {0}; + USHORT r[1]; + + /* Init with TsdSepData[k] = 0 */ + for (k = 0; k < numSlots; k++) { + phaseData[k] = -1; /* means TsdSepData[] = 0 */ + } + + for (h = (SIZE_S - 1); h >= 0; h--) { + if (nBitsTsdCW > h * 16) { + s[h] = (USHORT)FDKreadBits(hBs, nBitsTsdCW - h * 16); + nBitsTsdCW = h * 16; + } + } + + /* c = prod_{h=1}^{p} (k-p+h)/h */ + k = numSlots - 1; + c[0] = k - p + 1; + for (h = 2; h <= p; h++) { + longmult1(c, (k - p + h), c, 5); /* c *= k - p + h; */ + longdiv(c, h, c, r, 5); /* c /= h; */ + FDK_ASSERT(*r == 0); + } + + /* go through all slots */ + for (; k >= 0; k--) { + if (p > k) { + for (; k >= 0; k--) { + phaseData[k] = 1; /* means TsdSepData[] = 1 */ + } + break; + } + if (longcompare(s, c, 4)) { /* (s >= c) */ + longsub(s, c, 4, 4); /* s -= c; */ + phaseData[k] = 1; /* means TsdSepData[] = 1 */ + if (p == 1) { + break; + } + /* Update c for next iteration: c_new = c_old * p / k */ + longmult1(c, p, c, 5); + p--; + } else { + /* Update c for next iteration: c_new = c_old * (k-p) / k */ + longmult1(c, (k - p), c, 5); + } + longdiv(c, k, c, r, 5); + FDK_ASSERT(*r == 0); + } + + /* Read phase data */ + for (k = 0; k < numSlots; k++) { + if (phaseData[k] == 1) { + phaseData[k] = FDKreadBits(hBs, 3); + } + } + } + + return 0; +} + +void TsdGenerateNonTr(const int numHybridBands, const TSD_DATA *pTsdData, + const int ts, FIXP_DBL *pVdirectReal, + FIXP_DBL *pVdirectImag, FIXP_DBL *pVnonTrReal, + FIXP_DBL *pVnonTrImag, FIXP_DBL **ppDecorrInReal, + FIXP_DBL **ppDecorrInImag) { + int k = 0; + + if (!isTrSlot(pTsdData, ts)) { + /* Let allpass based decorrelator read from direct input. */ + *ppDecorrInReal = pVdirectReal; + *ppDecorrInImag = pVdirectImag; + return; + } + + /* Generate nonTr input signal for allpass based decorrelator */ + for (; k < TSD_START_BAND; k++) { + pVnonTrReal[k] = pVdirectReal[k]; + pVnonTrImag[k] = pVdirectImag[k]; + } + for (; k < numHybridBands; k++) { + pVnonTrReal[k] = (FIXP_DBL)0; + pVnonTrImag[k] = (FIXP_DBL)0; + } + *ppDecorrInReal = pVnonTrReal; + *ppDecorrInImag = pVnonTrImag; +} + +void TsdApply(const int numHybridBands, const TSD_DATA *pTsdData, int *pTsdTs, + const FIXP_DBL *pVdirectReal, const FIXP_DBL *pVdirectImag, + FIXP_DBL *pDnonTrReal, FIXP_DBL *pDnonTrImag) { + const int ts = *pTsdTs; + + if (isTrSlot(pTsdData, ts)) { + int k; + const FIXP_STP *phi = &phiTsd[pTsdData->bsTsdTrPhaseData[ts]]; + FDK_ASSERT((pTsdData->bsTsdTrPhaseData[ts] >= 0) && + (pTsdData->bsTsdTrPhaseData[ts] < 8)); + + /* d = d_nonTr + v_direct * exp(j * bsTsdTrPhaseData[ts]/4 * pi ) */ + for (k = TSD_START_BAND; k < numHybridBands; k++) { + FIXP_DBL tempReal, tempImag; + cplxMult(&tempReal, &tempImag, pVdirectReal[k], pVdirectImag[k], *phi); + pDnonTrReal[k] += tempReal; + pDnonTrImag[k] += tempImag; + } + } + + /* The modulo MAX_TSD_TIME_SLOTS operation is to avoid illegal memory accesses + * in case of errors. */ + *pTsdTs = (ts + 1) & (MAX_TSD_TIME_SLOTS - 1); + return; +} |