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, 280 insertions, 0 deletions

diff --git a/libAACdec/src/usacdec_acelp.h b/libAACdec/src/usacdec_acelp.h
new file mode 100644
index 0000000..593a073
--- /dev/null
+++ b/libAACdec/src/usacdec_acelp.h
@@ -0,0 +1,280 @@
+/* -----------------------------------------------------------------------------
+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
+----------------------------------------------------------------------------- */
+
+/**************************** AAC decoder library ******************************
+
+   Author(s):   Matthias Hildenbrand
+
+   Description: USAC ACELP frame decoder
+
+*******************************************************************************/
+
+#ifndef USACDEC_ACELP_H
+#define USACDEC_ACELP_H
+
+#include "common_fix.h"
+#include "FDK_bitstream.h"
+#include "usacdec_const.h"
+#include "usacdec_rom.h"
+
+//#define ENHANCED_TCX_TD_CONCEAL_ENABLE
+
+/** Structure which holds the ACELP internal persistent memory */
+typedef struct {
+  FIXP_DBL old_exc_mem[PIT_MAX_MAX + L_INTERPOL];
+  FIXP_DBL old_syn_mem[M_LP_FILTER_ORDER]; /* synthesis filter states */
+  FIXP_SGL A[M_LP_FILTER_ORDER];
+  INT A_exp;
+  FIXP_DBL gc_threshold;
+  FIXP_DBL de_emph_mem;
+  FIXP_SGL past_gpit;
+  FIXP_DBL past_gcode;
+  USHORT old_T0;
+  UCHAR old_T0_frac;
+  FIXP_DBL deemph_mem_wsyn;
+  FIXP_DBL wsyn_rms;
+  SHORT seed_ace;
+} CAcelpStaticMem;
+
+/** Structure which holds the parameter data needed to decode one ACELP frame.
+ */
+typedef struct {
+  UCHAR
+  acelp_core_mode;   /**< mean excitation energy index for whole ACELP frame
+                      */
+  UCHAR mean_energy; /**< acelp core mode for whole ACELP frame */
+  USHORT T0[NB_SUBFR];
+  UCHAR T0_frac[NB_SUBFR];
+  UCHAR ltp_filtering_flag[NB_SUBFR]; /**< controlls whether LTP postfilter is
+                                         active for each ACELP subframe */
+  SHORT icb_index[NB_SUBFR]
+                 [8]; /**< innovative codebook index for each ACELP subframe */
+  UCHAR gains[NB_SUBFR]; /**< gain index for each ACELP subframe */
+} CAcelpChannelData;
+
+/**
+ * \brief Read the acelp_coding() bitstream part.
+ * \param[in] hBs bitstream handle to read data from.
+ * \param[out] acelpData pointer to structure to store the parsed data of one
+ * ACELP frame.
+ * \param[in] acelp_core_mode the ACELP core mode index.
+ * \param[in] coreCoderFrameLength length of core coder frame (1024|768)
+ */
+INT CLpd_AcelpRead(HANDLE_FDK_BITSTREAM hBs, CAcelpChannelData *acelpData,
+                   INT acelp_core_mode, INT i_offset, INT coreCoderFrameLength);
+/**
+ * \brief Initialization of memory before one LPD frame is decoded
+ * \param[out] synth_buf synthesis buffer to be initialized, exponent = SF_SYNTH
+ * \param[in] old_synth past synthesis of previous LPD frame, exponent =
+ * SF_SYNTH
+ * \param[out] synth_buf_fb fullband synthesis buffer to be initialized,
+ * exponent = SF_SYNTH
+ * \param[in] old_synth_fb past fullband synthesis of previous LPD frame,
+ * exponent = SF_SYNTH
+ * \param[out] pitch vector where decoded pitch lag values are stored
+ * \param[in] old_T_pf past pitch lag values of previous LPD frame
+ * \param[in] samplingRate sampling rate for pitch lag offset calculation
+ * \param[out] i_offset pitch lag offset for the decoding of the pitch lag
+ * \param[in] coreCoderFrameLength length of core coder frame (1024|768)
+ */
+void Acelp_PreProcessing(FIXP_DBL *synth_buf, FIXP_DBL *old_synth, INT *pitch,
+                         INT *old_T_pf, FIXP_DBL *pit_gain,
+                         FIXP_DBL *old_gain_pf, INT samplingRate, INT *i_offset,
+                         INT coreCoderFrameLength, INT synSfd,
+                         INT nbSubfrSuperfr);
+
+/**
+ * \brief Save tail of buffers for the initialization of the next LPD frame
+ * \param[in] synth_buf synthesis of current LPD frame, exponent = SF_SYNTH
+ * \param[out] old_synth memory where tail of fullband synth_buf is stored,
+ * exponent = SF_SYNTH
+ * \param[in] synth_buf_fb fullband synthesis of current LPD frame, exponent =
+ * SF_SYNTH
+ * \param[out] old_synth_fb memory where tail of fullband synth_buf is stored,
+ * exponent = SF_SYNTH
+ * \param[in] pitch decoded pitch lag values of current LPD frame
+ * \param[out] old_T_pf memory where last SYN_SFD pitch lag values are stored
+ */
+void Acelp_PostProcessing(FIXP_DBL *synth_buf, FIXP_DBL *old_synth, INT *pitch,
+                          INT *old_T_pf, INT coreCoderFrameLength, INT synSfd,
+                          INT nbSubfrSuperfr);
+
+/**
+ * \brief Decode one ACELP frame (three or four ACELP subframes with 64 samples
+ * each)
+ * \param[in,out] acelp_mem pointer to ACELP memory structure
+ * \param[in] i_offset pitch lag offset
+ * \param[in] lsp_old LPC filter in LSP domain corresponding to previous frame
+ * \param[in] lsp_new LPC filter in LSP domain corresponding to current frame
+ * \param[in] stab_fac stability factor constrained by 0<=stab_fac<=1.0,
+ * exponent = SF_STAB
+ * \param[in] acelpData pointer to struct with data which is needed for decoding
+ * one ACELP frame
+ * \param[out] synth ACELP output signal
+ * \param[out] pT four decoded pitch lag values
+ * \param[in] coreCoderFrameLength length of core coder frame (1024|768)
+ */
+void CLpd_AcelpDecode(CAcelpStaticMem *acelp_mem, INT i_offset,
+                      const FIXP_LPC lsp_old[M_LP_FILTER_ORDER],
+                      const FIXP_LPC lsp_new[M_LP_FILTER_ORDER],
+                      FIXP_SGL stab_fac, CAcelpChannelData *acelpData,
+                      INT numLostSubframes, int lastLpcLost, int frameCnt,
+                      FIXP_DBL synth[], int pT[], FIXP_DBL *pit_gain,
+                      INT coreCoderFrameLength);
+
+/**
+ * \brief Reset ACELP internal memory.
+ * \param[out] acelp_mem pointer to ACELP memory structure
+ */
+void CLpd_AcelpReset(CAcelpStaticMem *acelp_mem);
+
+/**
+ * \brief Initialize ACELP internal memory in case of FAC before ACELP decoder
+ * is called
+ * \param[in] synth points to end+1 of past valid synthesis signal, exponent =
+ * SF_SYNTH
+ * \param[in] last_lpd_mode last lpd mode
+ * \param[in] last_last_lpd_mode lpd mode before last_lpd_mode
+ * \param[in] A_new LP synthesis filter coeffs corresponding to last frame,
+ * exponent = SF_A_COEFFS
+ * \param[in] A_old LP synthesis filter coeffs corresponding to the frame before
+ * last frame, exponent = SF_A_COEFFS
+ * \param[in,out] acelp_mem pointer to ACELP memory structure
+ * \param[in] coreCoderFrameLength length of core coder frame (1024|768)
+ */
+void CLpd_AcelpPrepareInternalMem(const FIXP_DBL *synth, UCHAR last_lpd_mode,
+                                  UCHAR last_last_lpd_mode,
+                                  const FIXP_LPC *A_new, const INT A_new_exp,
+                                  const FIXP_LPC *A_old, const INT A_old_exp,
+                                  CAcelpStaticMem *acelp_mem,
+                                  INT coreCoderFrameLength, UCHAR lpd_mode);
+
+/**
+ * \brief Calculate zero input response (zir) of the acelp synthesis filter
+ * \param[in] A LP synthesis filter coefficients, exponent = SF_A_COEFFS
+ * \param[in,out] acelp_mem pointer to ACELP memory structure
+ * \param[in] length length of zir
+ * \param[out] zir pointer to zir output buffer, exponent = SF_SYNTH
+ */
+void CLpd_Acelp_Zir(const FIXP_LPC A[], const INT A_exp,
+                    CAcelpStaticMem *acelp_mem, const INT length,
+                    FIXP_DBL zir[], int doDeemph);
+
+/**
+ * \brief Borrow static excitation memory from ACELP decoder
+ * \param[in] acelp_mem pointer to ACELP memory structure
+ * \param[in] length number of requested FIXP_DBL values
+ * \return pointer to requested memory
+ *
+ * The caller has to take care not to overwrite valid memory areas.
+ * During TCX/FAC calculations and before CLpd_AcelpPrepareInternalMem() is
+ * called, the following memory size is available:
+ * - 256 samples in case of ACELP -> TCX20 -> ACELP transition
+ * - PIT_MAX_MAX+L_INTERPOL samples in all other cases
+ */
+FIXP_DBL *CLpd_ACELP_GetFreeExcMem(CAcelpStaticMem *acelp_mem, INT length);
+
+void CLpd_TcxTDConceal(CAcelpStaticMem *acelp_mem, SHORT *pitch,
+                       const FIXP_LPC lsp_old[M_LP_FILTER_ORDER],
+                       const FIXP_LPC lsp_new[M_LP_FILTER_ORDER],
+                       const FIXP_SGL stab_fac, INT numLostSubframes,
+                       FIXP_DBL synth[], INT coreCoderFrameLength,
+                       UCHAR last_tcx_noise_factor);
+
+inline SHORT E_UTIL_random(SHORT *seed) {
+  *seed = (SHORT)((((LONG)*seed * (LONG)31821) >> 1) + (LONG)13849);
+  return (*seed);
+}
+
+#endif /* USACDEC_ACELP_H */