Remove FDK-AAC

1 files changed, 0 insertions, 297 deletions

diff --git a/libAACdec/src/stereo.cpp b/libAACdec/src/stereo.cpp
deleted file mode 100644
index 4f28244..0000000
--- a/libAACdec/src/stereo.cpp
+++ /dev/null
@@ -1,297 +0,0 @@
-
-/* -----------------------------------------------------------------------------------------------------------
-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: joint stereo processing
-
-******************************************************************************/
-
-#include "stereo.h"
-
-
-#include "aac_rom.h"
-#include "FDK_bitstream.h"
-#include "channelinfo.h"
-
-enum
-{
-  L = 0,
-  R = 1
-};
-
-
-int CJointStereo_Read(
-        HANDLE_FDK_BITSTREAM bs,
-        CJointStereoData *pJointStereoData,
-        const int windowGroups,
-        const int scaleFactorBandsTransmitted,
-        const UINT flags
-        )
-{
-  int group,band;
-
-  pJointStereoData->MsMaskPresent = (UCHAR) FDKreadBits(bs,2);
-
-  FDKmemclear(pJointStereoData->MsUsed, scaleFactorBandsTransmitted*sizeof(UCHAR));
-
-  switch (pJointStereoData->MsMaskPresent)
-  {
-    case 0 : /* no M/S */
-      /* all flags are already cleared */
-      break ;
-
-    case 1 : /* read ms_used */
-
-      for (group=0; group<windowGroups; group++)
-      {
-        for (band=0; band<scaleFactorBandsTransmitted; band++)
-        {
-          pJointStereoData->MsUsed[band] |= (FDKreadBits(bs,1) << group);
-        }
-      }
-      break ;
-
-    case 2 : /* full spectrum M/S */
-
-      for (band=0; band<scaleFactorBandsTransmitted; band++)
-      {
-        pJointStereoData->MsUsed[band] = 255 ;  /* set all flags to 1 */
-      }
-      break ;
-  }
-
-  return 0;
-}
-
-void CJointStereo_ApplyMS(
-        CAacDecoderChannelInfo *pAacDecoderChannelInfo[2],
-        const SHORT *pScaleFactorBandOffsets,
-        const UCHAR *pWindowGroupLength,
-        const int windowGroups,
-        const int scaleFactorBandsTransmittedL,
-        const int scaleFactorBandsTransmittedR
-        )
-{
-  CJointStereoData *pJointStereoData = &pAacDecoderChannelInfo[L]->pComData->jointStereoData;
-  int window, group, scaleFactorBandsTransmitted;
-
-  FDK_ASSERT(scaleFactorBandsTransmittedL == scaleFactorBandsTransmittedR);
-  scaleFactorBandsTransmitted = scaleFactorBandsTransmittedL;
-  for (window = 0, group = 0; group < windowGroups; group++)
-  {
-    UCHAR groupMask = 1 << group;
-
-    for (int groupwin=0; groupwin<pWindowGroupLength[group]; groupwin++, window++)
-    {
-      int band;
-      FIXP_DBL *leftSpectrum, *rightSpectrum;
-      SHORT *leftScale = &pAacDecoderChannelInfo[L]->pDynData->aSfbScale[window*16];
-      SHORT *rightScale = &pAacDecoderChannelInfo[R]->pDynData->aSfbScale[window*16];
-
-      leftSpectrum = SPEC(pAacDecoderChannelInfo[L]->pSpectralCoefficient, window, pAacDecoderChannelInfo[L]->granuleLength);
-      rightSpectrum = SPEC(pAacDecoderChannelInfo[R]->pSpectralCoefficient, window, pAacDecoderChannelInfo[R]->granuleLength);
-
-      for (band=0; band<scaleFactorBandsTransmitted; band++)
-      {
-        if (pJointStereoData->MsUsed[band] & groupMask)
-        {
-          int lScale=leftScale[band];
-          int rScale=rightScale[band];
-          int commonScale=lScale > rScale ? lScale:rScale;
-
-          /* ISO/IEC 14496-3 Chapter 4.6.8.1.1 :
-             M/S joint channel coding can only be used if common_window is ‘1’. */
-          FDK_ASSERT(GetWindowSequence(&pAacDecoderChannelInfo[L]->icsInfo) == GetWindowSequence(&pAacDecoderChannelInfo[R]->icsInfo));
-          FDK_ASSERT(GetWindowShape(&pAacDecoderChannelInfo[L]->icsInfo) == GetWindowShape(&pAacDecoderChannelInfo[R]->icsInfo));
-
-          commonScale++;
-          leftScale[band]=commonScale;
-          rightScale[band]=commonScale;
-
-          lScale = fMin(DFRACT_BITS-1, commonScale - lScale);
-          rScale = fMin(DFRACT_BITS-1, commonScale - rScale);
-
-          FDK_ASSERT(lScale >= 0 && rScale >= 0);
-
-          for (int index=pScaleFactorBandOffsets[band]; index<pScaleFactorBandOffsets[band+1]; index++)
-          {
-            FIXP_DBL leftCoefficient  = leftSpectrum [index] ;
-            FIXP_DBL rightCoefficient = rightSpectrum [index] ;
-
-            leftCoefficient >>= lScale ;
-            rightCoefficient >>= rScale ;
-
-            leftSpectrum [index] = leftCoefficient + rightCoefficient ;
-            rightSpectrum [index] = leftCoefficient - rightCoefficient ;
-          }
-        }
-      }
-    }
-  }
-
-  /* Reset MsUsed flags if no explicit signalling was transmitted. Necessary for intensity coding.
-     PNS correlation signalling was mapped before calling CJointStereo_ApplyMS(). */
-  if (pJointStereoData->MsMaskPresent == 2) {
-    FDKmemclear(pJointStereoData->MsUsed, JointStereoMaximumBands * sizeof(UCHAR));
-  }
-}
-
-void CJointStereo_ApplyIS(
-        CAacDecoderChannelInfo *pAacDecoderChannelInfo[2],
-        const SHORT *pScaleFactorBandOffsets,
-        const UCHAR *pWindowGroupLength,
-        const int windowGroups,
-        const int scaleFactorBandsTransmitted,
-        const UINT CommonWindow
-        )
-{
-  CJointStereoData *pJointStereoData = &pAacDecoderChannelInfo[L]->pComData->jointStereoData;
-
-  for (int window=0,group=0; group<windowGroups; group++)
-  {
-    UCHAR *CodeBook;
-    SHORT *ScaleFactor;
-    UCHAR groupMask = 1 << group;
-
-    CodeBook = &pAacDecoderChannelInfo[R]->pDynData->aCodeBook[group*16];
-    ScaleFactor = &pAacDecoderChannelInfo[R]->pDynData->aScaleFactor[group*16];
-
-    for (int groupwin=0; groupwin<pWindowGroupLength[group]; groupwin++, window++)
-    {
-      FIXP_DBL *leftSpectrum, *rightSpectrum;
-      SHORT *leftScale = &pAacDecoderChannelInfo[L]->pDynData->aSfbScale[window*16];
-      SHORT *rightScale = &pAacDecoderChannelInfo[R]->pDynData->aSfbScale[window*16];
-      int band;
-
-      leftSpectrum = SPEC(pAacDecoderChannelInfo[L]->pSpectralCoefficient, window, pAacDecoderChannelInfo[L]->granuleLength);
-      rightSpectrum = SPEC(pAacDecoderChannelInfo[R]->pSpectralCoefficient, window, pAacDecoderChannelInfo[R]->granuleLength);
-
-      for (band=0; band<scaleFactorBandsTransmitted; band++)
-      {
-        if ((CodeBook [band] == INTENSITY_HCB) ||
-            (CodeBook [band] == INTENSITY_HCB2))
-        {
-          int bandScale = -(ScaleFactor [band] + 100) ;
-
-          int msb = bandScale >> 2 ;
-          int lsb = bandScale & 0x03 ;
-
-          /* exponent of MantissaTable[lsb][0] is 1, thus msb+1 below. */
-          FIXP_DBL scale = MantissaTable[lsb][0];
-
-          /* ISO/IEC 14496-3 Chapter 4.6.8.2.3 :
-             The use of intensity stereo coding is signaled by the use of the pseudo codebooks
-             INTENSITY_HCB and INTENSITY_HCB2 (15 and 14) only in the right channel of a
-             channel_pair_element() having a common ics_info() (common_window == 1). */
-          FDK_ASSERT(GetWindowSequence(&pAacDecoderChannelInfo[L]->icsInfo) == GetWindowSequence(&pAacDecoderChannelInfo[R]->icsInfo));
-          FDK_ASSERT(GetWindowShape(&pAacDecoderChannelInfo[L]->icsInfo) == GetWindowShape(&pAacDecoderChannelInfo[R]->icsInfo));
-
-          rightScale[band] = leftScale[band]+msb+1;
-
-          if (CommonWindow && (pJointStereoData->MsUsed[band] & groupMask))
-          {
-
-            if (CodeBook[band] == INTENSITY_HCB) /* _NOT_ in-phase */
-            {
-              scale = -scale ;
-            }
-          }
-          else
-          {
-            if (CodeBook[band] == INTENSITY_HCB2) /* out-of-phase */
-            {
-              scale = -scale ;
-            }
-          }
-
-          for (int index=pScaleFactorBandOffsets[band]; index<pScaleFactorBandOffsets[band+1]; index++)
-          {
-            rightSpectrum[index] = fMult(leftSpectrum[index],scale);
-          }
-        }
-      }
-    }
-  }
-}