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+
+/* -----------------------------------------------------------------------------------------------------------
+Software License for The Fraunhofer FDK AAC Codec Library for Android
+
+© Copyright  1995 - 2012 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 Audio Encoder **************************
+
+   Initial author:       M. Werner
+   contents/description: Bitstream encoder
+
+******************************************************************************/
+
+#ifndef _BITENC_H
+#define _BITENC_H
+
+
+#include "qc_data.h"
+#include "aacenc_tns.h"
+#include "channel_map.h"
+#include "interface.h"    /* obsolete, when PSY_OUT is thrown out of the WritBS-call! */
+#include "FDK_audio.h"
+#include "aacenc.h"
+
+#include "tpenc_lib.h"
+
+typedef enum{
+  MAX_ENCODER_CHANNELS  = 9,
+  MAX_BLOCK_TYPES       = 4,
+  MAX_AAC_LAYERS        = 9,
+  MAX_LAYERS            = MAX_AAC_LAYERS  , /* only one core layer if present */
+  FIRST_LAY             = 1   /* default layer number for AAC nonscalable */
+} _MAX_CONST;
+
+#define BUFFER_MX_HUFFCB_SIZE (32*sizeof(INT))  /* our FDK_bitbuffer needs size of power 2 */
+
+#define EL_ID_BITS  ( 3 )
+
+
+/**
+ * \brief Arbitrary order bitstream writer. This function can either assemble a bit stream
+ *        and write into the bit buffer of hTpEnc or calculate the number of static bits (signal independent)
+ *        TpEnc handle must be NULL in this case. Or also Calculate the minimum possible number of
+ *        static bits which by disabling all tools e.g. MS, TNS and sbfCnt=0. The minCnt parameter
+ *        has to be 1 in this latter case.
+ * \param hTpEnc Transport encoder handle. If NULL, the number of static bits will be returned into
+ *        *pBitDemand.
+ * \param pElInfo
+ * \param qcOutChannel
+ * \param hReorderInfo
+ * \param psyOutElement
+ * \param psyOutChannel
+ * \param syntaxFlags Bit stream syntax flags as defined in FDK_audio.h (Audio Codec flags).
+ * \param aot
+ * \param epConfig
+ * \param pBitDemand Pointer to an int where the amount of bits is returned into. The returned value
+ *        depends on if hTpEnc is NULL and minCnt.
+ * \param minCnt If non-zero the value returned into *pBitDemand is the absolute minimum required amount of
+ *        static bits in order to write a valid bit stream.
+ * \return AAC_ENCODER_ERROR error code
+ */
+AAC_ENCODER_ERROR FDKaacEnc_ChannelElementWrite( HANDLE_TRANSPORTENC  hTpEnc,
+                                                 ELEMENT_INFO        *pElInfo,
+                                                 QC_OUT_CHANNEL      *qcOutChannel[(2)],
+                                                 PSY_OUT_ELEMENT     *psyOutElement,
+                                                 PSY_OUT_CHANNEL     *psyOutChannel[(2)],
+                                                 UINT                 syntaxFlags,
+                                                 AUDIO_OBJECT_TYPE    aot,
+                                                 SCHAR                epConfig,
+                                                 INT                 *pBitDemand,
+                                                 UCHAR                minCnt
+                                               );
+/**
+ * \brief Write bit stream or account static bits
+ * \param hTpEnc transport encoder handle. If NULL, the function will
+ *        not write any bit stream data but only count the amount
+ *        of static (signal independent) bits
+ * \param channelMapping Channel mapping info
+ * \param qcOut
+ * \param psyOut
+ * \param qcKernel
+ * \param hBSE
+ * \param aot Audio Object Type being encoded
+ * \param syntaxFlags Flags indicating format specific detail
+ * \param epConfig Error protection config
+ */
+AAC_ENCODER_ERROR FDKaacEnc_WriteBitstream (HANDLE_TRANSPORTENC hTpEnc,
+                                            CHANNEL_MAPPING *channelMapping,
+                                            QC_OUT* qcOut,
+                                            PSY_OUT* psyOut,
+                                            QC_STATE* qcKernel,
+                                            AUDIO_OBJECT_TYPE  aot,
+                                            UINT  syntaxFlags,
+                                            SCHAR  epConfig
+                                           );
+
+INT FDKaacEnc_writeExtensionData( HANDLE_TRANSPORTENC  hTpEnc,
+                                  QC_OUT_EXTENSION    *pExtension,
+                                  INT                  elInstanceTag,
+                                  UINT                 alignAnchor,
+                                  UINT                 syntaxFlags,
+                                  AUDIO_OBJECT_TYPE    aot,
+                                  SCHAR                epConfig
+                                );
+
+#endif /* _BITENC_H */