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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
+----------------------------------------------------------------------------------------------------------- */
+
+/**************************  Fraunhofer IIS FDK SysLib  **********************
+
+   Author(s):   Eric Allamanche
+
+******************************************************************************/
+
+/** \file   wav_file.h
+ *  \brief  Rudimentary WAVE file read/write support.
+ *
+ *  The WAVE file reader/writer is intented to be used in the codec's example
+ *  framework for easily getting started with encoding/decoding. Therefore
+ *  it serves mainly for helping quickly understand how a codec's API actually
+ *  works.
+ *  Being a WAVE file reader/writer with very basic functionality, it may not be
+ *  able to read WAVE files that come with unusual configurations.
+ *  Details on how to use the interface functions can be found in every
+ *  (encoder/decoder) example framework.
+ */
+
+#ifndef __WAV_FILE_H__
+#define __WAV_FILE_H__
+
+
+
+#include "genericStds.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*!
+ * RIFF WAVE file struct.
+ * For details see WAVE file format documentation (for example at http://www.wotsit.org).
+ */
+typedef struct WAV_HEADER
+{
+  char  riffType[4];
+  UINT   riffSize;
+  char  waveType[4];
+  char  formatType[4];
+  UINT   formatSize;
+  USHORT compressionCode;
+  USHORT numChannels;
+  UINT   sampleRate;
+  UINT   bytesPerSecond;
+  USHORT blockAlign;
+  USHORT bitsPerSample;
+  char  dataType[4];
+  UINT   dataSize;
+} WAV_HEADER;
+
+struct WAV
+{
+  WAV_HEADER header;
+  FDKFILE *fp;
+};
+
+typedef struct WAV *HANDLE_WAV;
+
+/**
+ * \brief  Open a WAV file handle for reading.
+ *
+ * \param pWav      Pointer to a memory location, where a WAV handle is returned.
+ * \param filename  File name to be opened.
+ *
+ * \return  0 on success and non-zero on failure.
+ */
+INT WAV_InputOpen (HANDLE_WAV *pWav, const char *filename);
+
+/**
+ * \brief  Read samples from a WAVE file. The samples are automatically re-ordered to the
+ *         native host endianess and scaled to full scale of the INT_PCM type, from
+ *         whatever BPS the WAVE file had specified in its header data.
+ *
+ *  \param wav           Handle of WAV file.
+ *  \param sampleBuffer  Pointer to store audio data.
+ *  \param numSamples    Desired number of samples to read.
+ *  \param nBufBits      Size in bit of each audio sample of sampleBuffer.
+ *
+ *  \return  Number of samples actually read.
+ */
+INT WAV_InputRead (HANDLE_WAV wav, void *sampleBuffer, UINT numSamples, int nBufBits);
+
+/**
+ * \brief       Close a WAV file reading handle.
+ * \param pWav  Pointer to a WAV file reading handle.
+ * \return      void
+ */
+void WAV_InputClose(HANDLE_WAV *pWav);
+
+/**
+ * \brief  Open WAV output/writer handle.
+ *
+ * \param pWav            Pointer to WAV handle to be returned.
+ * \param outputFilename  File name of the file to be written to.
+ * \param sampleRate      Desired samplerate of the resulting WAV file.
+ * \param numChannels     Desired number of audio channels of the resulting WAV file.
+ * \param bitsPerSample   Desired number of bits per audio sample of the resulting WAV file.
+ *
+ * \return  0: ok; -1: error
+ */
+INT WAV_OutputOpen(HANDLE_WAV *pWav, const char *outputFilename, INT sampleRate, INT numChannels, INT bitsPerSample);
+
+/**
+ * \brief  Write data to WAV file asociated to WAV handle.
+ *
+ * \param wav              Handle of WAV file
+ * \param sampleBuffer     Pointer to audio samples, right justified integer values.
+ * \param numberOfSamples  The number of individual audio sample valuesto be written.
+ * \param nBufBits         Size in bits of each audio sample in sampleBuffer.
+ * \param nSigBits         Amount of significant bits of each nBufBits in sampleBuffer.
+ *
+ * \return 0: ok; -1: error
+ */
+INT WAV_OutputWrite(HANDLE_WAV wav, void *sampleBuffer, UINT numberOfSamples, int nBufBits, int nSigBits);
+
+/**
+ * \brief       Close WAV output handle.
+ * \param pWav  Pointer to WAV handle. *pWav is set to NULL.
+ * \return      void
+ */
+void WAV_OutputClose(HANDLE_WAV *pWav);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+#endif /* __WAV_FILE_H__ */