Remove FDK-AAC

1 files changed, 0 insertions, 322 deletions

diff --git a/libAACdec/src/block.h b/libAACdec/src/block.h
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index f9394f6..0000000
--- a/libAACdec/src/block.h
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-
-/* -----------------------------------------------------------------------------------------------------------
-Software License for The Fraunhofer FDK AAC Codec Library for Android
-
-© Copyright  1995 - 2013 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-4 AAC Decoder  **************************
-
-   Author(s):   Josef Hoepfl
-   Description: long/short-block decoding
-
-******************************************************************************/
-
-#ifndef BLOCK_H
-#define BLOCK_H
-
-#include "common_fix.h"
-
-#include "channelinfo.h"
-#include "FDK_bitstream.h"
-
-/* PNS (of block) */
-void CPns_Read (CPnsData *pPnsData,
-                HANDLE_FDK_BITSTREAM bs,
-                const CodeBookDescription *hcb,
-                SHORT *pScaleFactor,
-                UCHAR global_gain,
-                int band,
-                int group);
-
-
-void CPns_Apply (const CPnsData *pPnsData,
-                 const CIcsInfo *pIcsInfo,
-                 SPECTRAL_PTR pSpectrum,
-                 const SHORT    *pSpecScale,
-                 const SHORT    *pScaleFactor,
-                 const SamplingRateInfo *pSamplingRateInfo,
-                 const INT granuleLength,
-                 const int channel);
-
-
-
-/* TNS (of block) */
-/*!
-  \brief Read tns data-present flag from bitstream
-
-  The function reads the data-present flag for tns from
-  the bitstream.
-
-  \return  none
-*/
-void CTns_ReadDataPresentFlag(HANDLE_FDK_BITSTREAM bs,
-                              CTnsData *pTnsData);
-
-void CTns_ReadDataPresentUsac(
-        HANDLE_FDK_BITSTREAM hBs,
-        CTnsData *pTnsData0,
-        CTnsData *pTnsData1,
-        const CIcsInfo *pIcsInfo,
-        const UINT flags,
-        const int fCommonWindow
-        );
-
-AAC_DECODER_ERROR CTns_Read(HANDLE_FDK_BITSTREAM bs,
-                            CTnsData *pTnsData,
-                            const CIcsInfo *pIcsInfo,
-                            const UINT flags);
-
-void CTns_Apply ( CTnsData *RESTRICT pTnsData, /*!< pointer to aac decoder info */
-                  const CIcsInfo *pIcsInfo,
-                  SPECTRAL_PTR pSpectralCoefficient,
-                  const SamplingRateInfo *pSamplingRateInfo,
-                  const INT granuleLength);
-
-/* Block */
-
-LONG CBlock_GetEscape(HANDLE_FDK_BITSTREAM bs, const LONG q);
-
-/**
- * \brief Read scale factor data. See chapter 4.6.2.3.2 of ISO/IEC 14496-3.
- *        The SF_OFFSET = 100 value referenced in chapter 4.6.2.3.3 is already substracted
- *        from the scale factor values. Also includes PNS data reading.
- * \param bs bit stream handle data source
- * \param pAacDecoderChannelInfo channel context info were decoded data is stored into.
- * \param flags the decoder flags.
- */
-AAC_DECODER_ERROR CBlock_ReadScaleFactorData(
-        CAacDecoderChannelInfo *pAacDecoderChannelInfo,
-        HANDLE_FDK_BITSTREAM bs,
-        const UINT flags
-        );
-
-/**
- * \brief Read Huffman encoded spectral data.
- * \param pAacDecoderChannelInfo channel context info.
- * \param pSamplingRateInfo sampling rate info (sfb offsets).
- * \param flags syntax flags.
- */
-AAC_DECODER_ERROR  CBlock_ReadSpectralData(HANDLE_FDK_BITSTREAM bs,
-                                           CAacDecoderChannelInfo *pAacDecoderChannelInfo,
-                                           const SamplingRateInfo *pSamplingRateInfo,
-                                           const UINT  flags);
-
-
-AAC_DECODER_ERROR CBlock_ReadSectionData(HANDLE_FDK_BITSTREAM bs,
-                                         CAacDecoderChannelInfo *pAacDecoderChannelInfo,
-                                         const SamplingRateInfo *pSamplingRateInfo,
-                                         const UINT  flags);
-
-/**
- * \brief find a common exponent (shift factor) for all sfb in each Spectral window, and store them into
- *        CAacDecoderChannelInfo::specScale.
- * \param pAacDecoderChannelInfo channel context info.
- * \param pSamplingRateInfo sampling rate info (sfb offsets).
- */
-void CBlock_ScaleSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo);
-
-/**
- * \brief Apply TNS and PNS tools.
- */
-void ApplyTools ( CAacDecoderChannelInfo *pAacDecoderChannelInfo[],
-                  const SamplingRateInfo *pSamplingRateInfo,
-                  const UINT flags,
-                  const int channel );
-
-/**
- * \brief Transform MDCT spectral data into time domain
- */
-void CBlock_FrequencyToTime(CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
-                            CAacDecoderChannelInfo *pAacDecoderChannelInfo,
-                            INT_PCM outSamples[],
-                            const SHORT frameLen,
-                            const int stride,
-                            const int frameOk,
-                            FIXP_DBL *pWorkBuffer1);
-
-/**
- * \brief Transform double lapped MDCT (AAC-ELD) spectral data into time domain.
- */
-void CBlock_FrequencyToTimeLowDelay(CAacDecoderStaticChannelInfo *pAacDecoderStaticChannelInfo,
-                                    CAacDecoderChannelInfo *pAacDecoderChannelInfo,
-                                    INT_PCM outSamples[],
-                                    const short frameLen,
-                                    const char stride);
-
-AAC_DECODER_ERROR CBlock_InverseQuantizeSpectralData(CAacDecoderChannelInfo *pAacDecoderChannelInfo, SamplingRateInfo *pSamplingRateInfo);
-
-/**
- * \brief Calculate 2^(lsb/4) * value^(4/3)
- * \param pValue pointer to quantized value. The inverse quantized result is stored back here.
- * \param lsb 2 LSBs of the scale factor (scaleFactor % 4) applied as power 2 factor to the
- *        resulting inverse quantized value.
- * \return the exponent of the result (mantissa) stored into *pValue.
- */
-FDK_INLINE
-int EvaluatePower43 ( FIXP_DBL *pValue,
-                      UINT lsb )
-{
-  FIXP_DBL value;
-  UINT freeBits;
-  UINT exponent;
-
-  value = *pValue;
-  freeBits = fNormz (value) ;
-  exponent = DFRACT_BITS - freeBits ;
-  FDK_ASSERT (exponent < 14);
-
-  UINT x = (((int)value << freeBits) >> 19) ;
-  UINT tableIndex = (x & 0x0FFF) >> 4 ;
-  FIXP_DBL invQVal ;
-
-  x = x & 0x0F;
-
-  UINT r0=(LONG)InverseQuantTable [tableIndex+0];
-  UINT r1=(LONG)InverseQuantTable [tableIndex+1];
-  USHORT nx=16-x;
-  UINT temp=(r0)*nx+(r1)*x;
-  invQVal = (FIXP_DBL)temp;
-
-  FDK_ASSERT(lsb < 4);
-  *pValue = fMultDiv2 (invQVal, MantissaTable [lsb][exponent]) ;
-
-  /* + 1 compensates fMultDiv2(). */
-  return ExponentTable [lsb][exponent] + 1;
-}
-
-/**
- * \brief determine the required shift scale for the given quantized value and scale (factor % 4) value.
- */
-FDK_INLINE int GetScaleFromValue (FIXP_DBL value, unsigned int lsb)
-{
-  if (value!=(FIXP_DBL)0)
-  {
-    int scale = EvaluatePower43 (&value, lsb) ;
-    return CntLeadingZeros (value) - scale - 2 ;
-  }
-  else
-    return 0; /* Return zero, because its useless to scale a zero value, saves workload and avoids scaling overshifts. */
-}
-
-
-//#ifdef AACDEC_HUFFMANDECODER_ENABLE
-
-/*!
-  \brief Read huffman codeword
-
-  The function reads the huffman codeword from the bitstream and
-  returns the index value.
-
-  \return  index value
-*/
-inline int CBlock_DecodeHuffmanWord( HANDLE_FDK_BITSTREAM bs,                           /*!< pointer to bitstream */
-                                     const CodeBookDescription *hcb )                   /*!< pointer to codebook description */
-{
-  UINT val;
-  UINT index = 0;
-  const USHORT (*CodeBook) [HuffmanEntries] = hcb->CodeBook;
-
-  while (1)
-  {
-    val = CodeBook[index][FDKreadBits(bs,HuffmanBits)]; /* Expensive memory access */
-
-    if ((val & 1) == 0)
-    {
-      index = val>>2;
-      continue;
-    }
-    else
-    {
-      if (val & 2)
-      {
-        FDKpushBackCache(bs,1);
-      }
-
-      val >>= 2;
-      break;
-    }
-  }
-
-  return val;
-}
-
-//#endif /* AACDEC_HUFFMANDECODER_ENABLE */
-
-#endif /* #ifndef BLOCK_H */