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, 405 insertions, 0 deletions

diff --git a/libSACenc/include/sacenc_lib.h b/libSACenc/include/sacenc_lib.h
new file mode 100644
index 0000000..758cc0f
--- /dev/null
+++ b/libSACenc/include/sacenc_lib.h
@@ -0,0 +1,405 @@
+/* -----------------------------------------------------------------------------
+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):   Max Neuendorf
+
+   Description: Encoder Library Interface
+                Encoder API
+
+*******************************************************************************/
+
+/**************************************************************************/ /**
+   \file
+ ******************************************************************************/
+
+#ifndef SACENC_LIB_H
+#define SACENC_LIB_H
+
+/* Includes ******************************************************************/
+#include "machine_type.h"
+#include "FDK_audio.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+/* Defines *******************************************************************/
+
+/* Data Types ****************************************************************/
+
+/**
+ *  Space encoder error codes.
+ */
+typedef enum {
+  SACENC_OK = 0x00000000, /*!< No error happened. All fine. */
+  SACENC_INVALID_HANDLE =
+      0x00000080, /*!< Handle passed to function call was invalid. */
+  SACENC_MEMORY_ERROR = 0x00000800, /*!< Memory allocation failed. */
+  SACENC_INIT_ERROR = 0x00008000,   /*!< General initialization error. */
+  SACENC_ENCODE_ERROR =
+      0x00080000, /*!< The encoding process was interrupted by an unexpected
+                     error. */
+  SACENC_PARAM_ERROR = 0x00800000,           /*!< Invalid runtime parameter. */
+  SACENC_UNSUPPORTED_PARAMETER = 0x00800001, /*!< Parameter not available. */
+  SACENC_INVALID_CONFIG = 0x00800002,        /*!< Configuration not provided. */
+  SACENC_UNKNOWN_ERROR = 0x08000000          /*!< Unknown error. */
+
+} FDK_SACENC_ERROR;
+
+typedef enum {
+  SACENC_INVALID_MODE = 0,
+  SACENC_212 = 8,
+  SACENC_ESCAPE = 15
+
+} MP4SPACEENC_MODE;
+
+typedef enum {
+  SACENC_BANDS_INVALID = 0,
+  SACENC_BANDS_4 = 4,
+  SACENC_BANDS_5 = 5,
+  SACENC_BANDS_7 = 7,
+  SACENC_BANDS_9 = 9,
+  SACENC_BANDS_12 = 12,
+  SACENC_BANDS_15 = 15,
+  SACENC_BANDS_23 = 23
+
+} MP4SPACEENC_BANDS_CONFIG;
+
+typedef enum {
+  SACENC_QUANTMODE_INVALID = -1,
+  SACENC_QUANTMODE_FINE = 0,
+  SACENC_QUANTMODE_EBQ1 = 1,
+  SACENC_QUANTMODE_EBQ2 = 2,
+  SACENC_QUANTMODE_RSVD3 = 3
+
+} MP4SPACEENC_QUANTMODE;
+
+typedef enum {
+  SACENC_DMXGAIN_INVALID = -1,
+  SACENC_DMXGAIN_0_dB = 0,
+  SACENC_DMXGAIN_1_5_dB = 1,
+  SACENC_DMXGAIN_3_dB = 2,
+  SACENC_DMXGAIN_4_5_dB = 3,
+  SACENC_DMXGAIN_6_dB = 4,
+  SACENC_DMXGAIN_7_5_dB = 5,
+  SACENC_DMXGAIN_9_dB = 6,
+  SACENC_DMXGAIN_12_dB = 7
+
+} MP4SPACEENC_DMX_GAIN;
+
+/**
+ * \brief  Space Encoder setting parameters.
+ *
+ * Use FDK_sacenc_setParam() function to configure the internal status of the
+ * following parameters.
+ */
+typedef enum {
+  SACENC_LOWDELAY, /*!< Configure lowdelay MPEG Surround.
+                        - 0: Disable Lowdelay. (default)
+                        - 1: Enable Lowdelay.
+                        - 2: Enable Lowdelay including keep frame. */
+
+  SACENC_ENC_MODE, /*!< Configure encoder tree mode. See ::MP4SPACEENC_MODE for
+                      available values. */
+
+  SACENC_SAMPLERATE, /*!< Configure encoder sampling rate. */
+
+  SACENC_FRAME_TIME_SLOTS, /*!< Configure number of slots per spatial frame. */
+
+  SACENC_PARAM_BANDS, /*!< Configure number of parameter bands. See
+                         ::MP4SPACEENC_BANDS_CONFIG for available values. */
+
+  SACENC_TIME_DOM_DMX, /*!< Configure time domain downmix.
+                            - 0: No time domain downmix. (default)
+                            - 1: Static time domain downmix.
+                            - 2: Enhanced time domain downmix, stereo to mono
+                          only. */
+
+  SACENC_DMX_GAIN, /*!< Configure downmix gain. See ::MP4SPACEENC_DMX_GAIN for
+                      available values. */
+
+  SACENC_COARSE_QUANT, /*!< Use coarse parameter quantization.
+                            - 0: No (default)
+                            - 1: Yes */
+
+  SACENC_QUANT_MODE, /*!< Configure quanitzation mode. See
+                        ::MP4SPACEENC_QUANTMODE for available values. */
+
+  SACENC_TIME_ALIGNMENT, /*!< Configure time alignment in samples. */
+
+  SACENC_INDEPENDENCY_COUNT, /*!< Configure the independency count. (count == 0
+                                means independencyFlag == 1) */
+
+  SACENC_INDEPENDENCY_FACTOR, /*!< How often should we set the independency flag
+                               */
+
+  SACENC_NONE /*!< ------ */
+
+} SPACEENC_PARAM;
+
+/**
+ *  Describes Spatial Specific Config.
+ */
+typedef struct {
+  INT nSscSizeBits; /*!< Number of valid bits in pSsc buffer. */
+  UCHAR *pSsc;      /*!< SpatialSpecificConfig buffer in binary format. */
+
+} MPEG4SPACEENC_SSCBUF;
+
+/**
+ *  Provides some info about the encoder configuration.
+ */
+typedef struct {
+  INT nSampleRate;         /*!< Configured sampling rate.*/
+  INT nSamplesFrame;       /*!< Frame length in samples. */
+  INT nTotalInputChannels; /*!< Number of expected audio input channels. */
+  INT nDmxDelay;           /*!< Delay of the downmixed signal. */
+  INT nCodecDelay;         /*!< Delay of the whole en-/decoded signal, including
+                              core-coder delay. */
+  INT nDecoderDelay;       /*!< Delay added by the MP4SPACE decoder. */
+  INT nPayloadDelay;       /*!< Delay of the payload. */
+  INT nDiscardOutFrames; /*!< Number of dmx frames to discard for alignment with
+                            bitstream. */
+
+  MPEG4SPACEENC_SSCBUF
+  *pSscBuf; /*!< Pointer to Spatial Specific Config structure. */
+
+} MP4SPACEENC_INFO;
+
+/**
+ *  MPEG Surround encoder handle.
+ */
+typedef struct MP4SPACE_ENCODER *HANDLE_MP4SPACE_ENCODER;
+
+/**
+ *  Defines the input arguments for a FDK_sacenc_encode() call.
+ */
+typedef struct {
+  INT nInputSamples; /*!< Number of valid input audio samples (multiple of input
+                        channels). */
+  UINT inputBufferSizePerChannel; /*!< Size of input buffer (input audio
+                                     samples) per channel. */
+  UINT isInputInterleaved; /*!< Indicates if input audio samples are represented
+                              in blocks or interleaved:
+                                - 0 : in blocks.
+                                - 1 : interleaved. */
+
+} SACENC_InArgs;
+
+/**
+ *  Defines the output arguments for a FDK_sacenc_encode() call.
+ */
+typedef struct {
+  INT nOutputBits;    /*!< Number of valid payload bits generated during
+                         FDK_sacenc_encode(). */
+  INT nOutputSamples; /*!< Number of valid output audio samples generated during
+                         FDK_sacenc_encode(). */
+  UINT nSamplesConsumed; /*!< Number of input audio samples consumed in
+                            FDK_sacenc_encode(). */
+
+} SACENC_OutArgs;
+
+/* Constants *****************************************************************/
+
+/* Function / Class Declarations *********************************************/
+
+/**
+ * \brief  Opens a new instace of the MPEG Surround encoder.
+ *
+ * \param phMp4SpaceEnc      Pointer to the encoder handle to be deallocated.
+ *
+ * \return
+ *          - SACENC_OK, on success.
+ *          - SACENC_INVALID_HANDLE, SACENC_MEMORY_ERROR, on failure.
+ */
+FDK_SACENC_ERROR FDK_sacenc_open(HANDLE_MP4SPACE_ENCODER *phMp4SpaceEnc);
+
+/**
+ * \brief  Finalizes opening process of MPEG Surround encoder.
+ *
+ * Shows, how many samples are needed as input
+ *
+ * \param hMp4SpaceEnc       A valid MPEG Surround encoder handle.
+ * \param dmxDelay           Downmix delay.
+ *
+ * \return
+ *          - SACENC_OK, on success.
+ *          - SACENC_INVALID_HANDLE, SACENC_INIT_ERROR, SACENC_INVALID_CONFIG,
+ * on failure.
+ */
+FDK_SACENC_ERROR FDK_sacenc_init(HANDLE_MP4SPACE_ENCODER hMp4SpaceEnc,
+                                 const INT dmxDelay);
+
+/**
+ * \brief  Close the MPEG Surround encoder instance.
+ *
+ * Deallocate encoder instance and free whole memory.
+ *
+ * \param phMp4SpaceEnc      Pointer to the encoder handle to be deallocated.
+ *
+ * \return
+ *          - SACENC_OK, on success.
+ *          - SACENC_INVALID_HANDLE, on failure.
+ */
+FDK_SACENC_ERROR FDK_sacenc_close(HANDLE_MP4SPACE_ENCODER *phMp4SpaceEnc);
+
+/**
+ * \brief  MPEG surround parameter extraction, framwise.
+ *
+ * \param hMp4SpaceEnc       A valid MPEG Surround encoder handle.
+ *
+ * \return
+ *          - SACENC_OK, on success.
+ *          - SACENC_INVALID_HANDLE, on failure.
+ */
+FDK_SACENC_ERROR FDK_sacenc_encode(const HANDLE_MP4SPACE_ENCODER hMp4SpaceEnc,
+                                   const FDK_bufDescr *inBufDesc,
+                                   const FDK_bufDescr *outBufDesc,
+                                   const SACENC_InArgs *inargs,
+                                   SACENC_OutArgs *outargs);
+
+/**
+ * \brief  Provides information on produced bitstream.
+ *
+ * \param hMp4SpaceEnc       A valid MPEG Surround encoder handle.
+ * \param pInfo              Pointer to an encoder info struct, filled on
+ * return.
+ *
+ * \return
+ *          - SACENC_OK, on success.
+ *          - SACENC_INVALID_HANDLE, on failure.
+ */
+FDK_SACENC_ERROR FDK_sacenc_getInfo(const HANDLE_MP4SPACE_ENCODER hMp4SpaceEnc,
+                                    MP4SPACEENC_INFO *const pInfo);
+
+/**
+ * \brief  Set one single MPEG Surround encoder parameter.
+ *
+ * This function allows configuration of all encoder parameters specified in
+ * ::SPACEENC_PARAM. Each parameter must be set with a separate function call.
+ * An internal validation of the configuration value range will be done.
+ *
+ * \param hMp4SpaceEnc       A valid MPEG Surround encoder handle.
+ * \param param              Parameter to be set. See ::SPACEENC_PARAM.
+ * \param value              Parameter value. See parameter description in
+ * ::SPACEENC_PARAM.
+ *
+ * \return
+ *          - SACENC_OK, on success.
+ *          - SACENC_INVALID_HANDLE, SACENC_UNSUPPORTED_PARAMETER,
+ * SACENC_INVALID_CONFIG, on failure.
+ */
+FDK_SACENC_ERROR FDK_sacenc_setParam(HANDLE_MP4SPACE_ENCODER hMp4SpaceEnc,
+                                     const SPACEENC_PARAM param,
+                                     const UINT value);
+
+/**
+ * \brief  Get information about MPEG Surround encoder library build.
+ *
+ * Fill a given LIB_INFO structure with library version information.
+ *
+ * \param info               Pointer to an allocated LIB_INFO struct.
+ *
+ * \return
+ *          - SACENC_OK, on success.
+ *          - SACENC_INVALID_HANDLE, SACENC_INIT_ERROR, on failure.
+ */
+FDK_SACENC_ERROR FDK_sacenc_getLibInfo(LIB_INFO *info);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* SACENC_LIB_H */