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

1 files changed, 488 insertions, 0 deletions

diff --git a/libSACenc/src/sacenc_vectorfunctions.h b/libSACenc/src/sacenc_vectorfunctions.h
new file mode 100644
index 0000000..e9c4abd
--- /dev/null
+++ b/libSACenc/src/sacenc_vectorfunctions.h
@@ -0,0 +1,488 @@
+/* -----------------------------------------------------------------------------
+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 encoder library *************************
+
+   Author(s):   Josef Hoepfl
+
+   Description: Encoder Library Interface
+                vector functions
+
+*******************************************************************************/
+
+/*****************************************************************************
+\file
+This file contains vector functions
+******************************************************************************/
+
+#ifndef SACENC_VECTORFUNCTIONS_H
+#define SACENC_VECTORFUNCTIONS_H
+
+/* Includes ******************************************************************/
+#include "common_fix.h"
+
+/* Defines *******************************************************************/
+#define SUM_UP_STATIC_SCALE 0
+#define SUM_UP_DYNAMIC_SCALE 1
+
+/* Data Types ****************************************************************/
+
+/* Constants *****************************************************************/
+
+/* Function / Class Declarations *********************************************/
+
+/**
+ * \brief          Vector function : Sum up complex power
+ *
+ *                 Description : ret = sum( re{X[i]} * re{X[i]} + im{X[i]} *
+ * im{X[i]} ),  i=0,...,n-1 ret is scaled by outScaleFactor
+ *
+ * \param          const FIXP_DPK x[]
+ *                 Input: complex vector of the length n
+ *
+ * \param          int scaleMode
+ *                 Input: choose static or dynamic scaling
+ * (SUM_UP_DYNAMIC_SCALE/SUM_UP_STATIC_SCALE)
+ *
+ * \param          int inScaleFactor
+ *                 Input: determine headroom bits for the complex input vector
+ *
+ * \param          int outScaleFactor
+ *                 Output: complete scaling in energy calculation
+ *
+ * \return         FIXP_DBL ret
+ */
+FIXP_DBL sumUpCplxPow2(const FIXP_DPK *const x, const INT scaleMode,
+                       const INT inScaleFactor, INT *const outScaleFactor,
+                       const INT n);
+
+/**
+ * \brief          Vector function : Sum up complex power
+ *
+ *                 Description : ret = sum( re{X[i][j]} * re{X[i][]} +
+ * im{X[i][]} * im{X[i][]} ),  i=sDim1,...,nDim1-1 i=sDim2,...,nDim2-1 ret is
+ * scaled by outScaleFactor
+ *
+ * \param          const FIXP_DPK x[]
+ *                 Input: complex vector of the length n
+ *
+ * \param          int scaleMode
+ *                 Input: choose static or dynamic scaling
+ * (SUM_UP_DYNAMIC_SCALE/SUM_UP_STATIC_SCALE)
+ *
+ * \param          int inScaleFactor
+ *                 Input: determine headroom bits for the complex input vector
+ *
+ * \param          int outScaleFactor
+ *                 Output: complete scaling in energy calculation
+ *
+ * \param          int sDim1
+ *                 Input: start index for loop counter in dimension 1
+ *
+ * \param          int nDim1
+ *                 Input: loop counter in dimension 1
+ *
+ * \param          int sDim2
+ *                 Input: start index for loop counter in dimension 2
+ *
+ * \param          int nDim2
+ *                 Input: loop counter in dimension 2
+ *
+ * \return         FIXP_DBL ret
+ */
+FIXP_DBL sumUpCplxPow2Dim2(const FIXP_DPK *const *const x, const INT scaleMode,
+                           const INT inScaleFactor, INT *const outScaleFactor,
+                           const INT sDim1, const INT nDim1, const INT sDim2,
+                           const INT nDim2);
+
+/**
+ * \brief          Vector function : Z[i] = X[i],  i=0,...,n-1
+ *
+ *                 Description : re{Z[i]} = re{X[i]},  i=0,...,n-1
+ *                               im{Z[i]} = im{X[i]},  i=0,...,n-1
+ *
+ *                 Copy complex vector X[] to complex vector Z[].
+ *                 It is allowed to overlay X[] with Z[].
+ *
+ * \param          FIXP_DPK Z[]
+ *                 Output: vector of the length n
+ *
+ * \param          const FIXP_DPK X[]
+ *                 Input: vector of the length n
+ *
+ * \param          int n
+ *                 Input: length of vector Z[] and X[]
+ *
+ * \return         void
+ */
+void copyCplxVec(FIXP_DPK *const Z, const FIXP_DPK *const X, const INT n);
+
+/**
+ * \brief          Vector function : Z[i] = a,  i=0,...,n-1
+ *
+ *                 Description : re{Z[i]} = a,  i=0,...,n-1
+ *                               im{Z[i]} = a,  i=0,...,n-1
+ *
+ *                 Set real and imaginary part of the complex value Z to a.
+ *
+ * \param          FIPX_DPK Z[]
+ *                 Output: vector of the length n
+ *
+ * \param          const FIXP_DBL a
+ *                 Input: constant value
+ *
+ * \param          int n
+ *                 Input: length of vector Z[]
+ *
+ * \return         void
+ */
+void setCplxVec(FIXP_DPK *const Z, const FIXP_DBL a, const INT n);
+
+/**
+ * \brief          Vector function : Calculate complex-valued result of complex
+ * scalar product
+ *
+ *                 Description : re{Z} = sum( re{X[i]} * re{Y[i]} + im{X[i]} *
+ * im{Y[i]},  i=0,...,n-1 ) im{Z} = sum( im{X[i]} * re{Y[i]} - re{X[i]} *
+ * im{Y[i]},  i=0,...,n-1 )
+ *
+ *                 The function returns the complex-valued result of the complex
+ * scalar product at the address of Z. The result is scaled by scaleZ.
+ *
+ * \param          FIXP_DPK *Z
+ *                 Output: pointer to Z
+ *
+ * \param          const FIXP_DPK *const *const X
+ *                 Input: vector of the length n
+ *
+ * \param          const FIXP_DPK *const *const Y
+ *                 Input: vector of the length n
+ *
+ * \param          int scaleX
+ *                 Input: scalefactor of vector X[]
+ *
+ * \param          int scaleY
+ *                 Input: scalefactor of vector Y[]
+ *
+ * \param          int scaleZ
+ *                 Output: scalefactor of vector Z[]
+ *
+ * \param          int sDim1
+ *                 Input: start index for loop counter in dimension 1
+ *
+ * \param          int nDim1
+ *                 Input: loop counter in dimension 1
+ *
+ * \param          int sDim2
+ *                 Input: start index for loop counter in dimension 2
+ *
+ * \param          int nDim2
+ *                 Input: loop counter in dimension 2
+ *
+ * \return         void
+ */
+void cplx_cplxScalarProduct(FIXP_DPK *const Z, const FIXP_DPK *const *const X,
+                            const FIXP_DPK *const *const Y, const INT scaleX,
+                            const INT scaleY, INT *const scaleZ,
+                            const INT sDim1, const INT nDim1, const INT sDim2,
+                            const INT nDim2);
+
+/**
+ * \brief          Vector function : Calculate correlation
+ *
+ *                 Description : z[i] = pr12[i] / sqrt(p1[i]*p2[i]) ,
+ * i=0,...,n-1
+ *
+ * \param          FIXP_DBL z[]
+ *                 Output: vector of length n
+ *
+ * \param          const FIXP_DBL pr12[]
+ *                 Input: vector of the length n
+ *
+ * \param          const FIXP_DBL p1[]
+ *                 Input: vector of the length n
+ *
+ * \param          const FIXP_DBL p2[]
+ *                 Input: vector of the length n
+ *
+ * \param          int n
+ *                 Input: length of vector pr12[], p1[] and p2[]
+ *
+ * \return         void
+ */
+void FDKcalcCorrelationVec(FIXP_DBL *const z, const FIXP_DBL *const pr12,
+                           const FIXP_DBL *const p1, const FIXP_DBL *const p2,
+                           const INT n);
+
+/**
+ * \brief          Vector function : Calculate coherence
+ *
+ *                 Description : z[i] = sqrt( (p12r[i]*p12r[i] +
+ * p12i[i]*p12i[i]) / (p1[i]*p2[i]) ),  i=0,...,n-1
+ *
+ * \param          FIXP_DBL z[]
+ *                 Output: vector of length n
+ *
+ * \param          const FIXP_DBL p12r[]
+ *                 Input: vector of the length n
+ *
+ * \param          const FIXP_DBL p12i[]
+ *                 Input: vector of the length n
+ *
+ * \param          const FIXP_DBL p1[]
+ *                 Input: vector of the length n
+ *
+ * \param          const FIXP_DBL p2[]
+ *                 Input: vector of the length n
+ *
+ * \param          int scaleP12[]
+ *                 Input: scalefactor of p12r and p12i
+ *
+ * \param          int scaleP
+ *                 Input: scalefactor of p1 and p2
+ *
+ * \param          int n
+ *                 Input: length of vector p12r[], p12i[], p1[] and p2[]
+ *
+ * \return         void
+ */
+void calcCoherenceVec(FIXP_DBL *const z, const FIXP_DBL *const p12r,
+                      const FIXP_DBL *const p12i, const FIXP_DBL *const p1,
+                      const FIXP_DBL *const p2, const INT scaleP12,
+                      const INT scaleP, const INT n);
+
+/**
+ * \brief          Vector function : Z[j][i] = a[pb] * X[j][i] + b[pb] *
+ * Y[j][i],  j=0,...,nHybridBands-1;  i=startTimeSlot,...,nTimeSlots-1;
+ * pb=0,...,nParameterBands-1
+ *
+ *                 Description : re{Z[j][i]} = a[pb] * re{X[j][i]} + b[pb] *
+ * re{Y[j][i]},  j=0,...,nHybridBands-1;  i=startTimeSlot,...,nTimeSlots-1;
+ * pb=0,...,nParameterBands-1 im{Z[j][i]} = a[pb] * im{X[j][i]} + b[pb] *
+ * im{Y[j][i]},  j=0,...,nHybridBands-1;
+ * i=startTimeSlot,...,nTimeSlots-1;  pb=0,...,nParameterBands-1
+ *
+ *                 It is allowed to overlay X[] or Y[] with Z[]. The scalefactor
+ * of channel 1 is updated with the common scalefactor of channel 1 and
+ * channel 2.
+ *
+ * \param          FIXP_DPK **Z
+ *                 Output: vector of the length nHybridBands*nTimeSlots
+ *
+ * \param          const FIXP_DBL *a
+ *                 Input: vector of length nParameterBands
+ *
+ * \param          const FIXP_DPK **X
+ *                 Input: vector of the length nHybridBands*nTimeSlots
+ *
+ * \param          const FIXP_DBL *b
+ *                 Input: vector of length nParameterBands
+ *
+ * \param          const FIXP_DPK **Y
+ *                 Input: vector of the length nHybridBands*nTimeSlots
+ *
+ * \param          int scale
+ *                 Input: scale of vector a and b
+ *
+ * \param          int *scaleCh1
+ *                 Input: scale of ch1
+ *
+ * \param          int scaleCh2
+ *                 Input: scale of ch2
+ *
+ * \param          UCHAR *pParameterBand2HybridBandOffset
+ *                 Input: vector of length nParameterBands
+ *
+ * \param          int nTimeSlots
+ *                 Input: number of time slots
+ *
+ * \param          int startTimeSlot
+ *                 Input: start time slot
+ *
+ * \return         void
+ */
+void addWeightedCplxVec(FIXP_DPK *const *const Z, const FIXP_DBL *const a,
+                        const FIXP_DPK *const *const X, const FIXP_DBL *const b,
+                        const FIXP_DPK *const *const Y, const INT scale,
+                        INT *const scaleCh1, const INT scaleCh2,
+                        const UCHAR *const pParameterBand2HybridBandOffset,
+                        const INT nParameterBands, const INT nTimeSlots,
+                        const INT startTimeSlot);
+
+/**
+ * \brief          Vector function : Calculate the headroom of a complex vector
+ * in a parameter band grid
+ *
+ * \param          FIXP_DPK **x
+ *                 Input: pointer to complex input vector
+ *
+ * \param          UCHAR *pParameterBand2HybridBandOffset
+ *                 Input: pointer to hybrid band offsets
+ *
+ * \param          int *outScaleFactor
+ *                 Input: pointer to ouput scalefactor
+ *
+ * \param          int startTimeSlot
+ *                 Input: start time slot
+ *
+ * \param          int nTimeSlots
+ *                 Input: number of time slot
+ *
+ * \param          int nParamBands
+ *                 Input: number of parameter bands
+ *
+ * \return         void
+ */
+void FDKcalcPbScaleFactor(const FIXP_DPK *const *const x,
+                          const UCHAR *const pParameterBand2HybridBandOffset,
+                          INT *const outScaleFactor, const INT startTimeSlot,
+                          const INT nTimeSlots, const INT nParamBands);
+
+/**
+ * \brief          Vector function : Calculate the common headroom of two
+ * sparate vectors
+ *
+ * \param          FIXP_DBL *x
+ *                 Input: pointer to first input vector
+ *
+ * \param          FIXP_DBL *y
+ *                 Input: pointer to second input vector
+ *
+ * \param          int n
+ *                 Input: number of samples
+ *
+ * \return         int headromm in bits
+ */
+INT FDKcalcScaleFactor(const FIXP_DBL *const x, const FIXP_DBL *const y,
+                       const INT n);
+
+/**
+ * \brief          Vector function : Calculate the headroom of a complex vector
+ *
+ * \param          FIXP_DPK *x
+ *                 Input: pointer to complex input vector
+ *
+ * \param          INT startBand
+ *                 Input: start band
+ *
+ * \param          INT bands
+ *                 Input: number of bands
+ *
+ * \return         int headromm in bits
+ */
+INT FDKcalcScaleFactorDPK(const FIXP_DPK *RESTRICT x, const INT startBand,
+                          const INT bands);
+
+/* Function / Class Definition ***********************************************/
+template <class T>
+inline void FDKmemcpy_flex(T *const dst, const INT dstStride,
+                           const T *const src, const INT srcStride,
+                           const INT nSamples) {
+  int i;
+
+  for (i = 0; i < nSamples; i++) {
+    dst[i * dstStride] = src[i * srcStride];
+  }
+}
+
+template <class T>
+inline void FDKmemset_flex(T *const x, const T c, const INT nSamples) {
+  int i;
+
+  for (i = 0; i < nSamples; i++) {
+    x[i] = c;
+  }
+}
+
+#endif /* SACENC_VECTORFUNCTIONS_H */