Remove FDK-AAC

1 files changed, 0 insertions, 264 deletions

diff --git a/libAACenc/src/transform.cpp b/libAACenc/src/transform.cpp
deleted file mode 100644
index 690b82e..0000000
--- a/libAACenc/src/transform.cpp
+++ /dev/null
@@ -1,264 +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
------------------------------------------------------------------------------------------------------------ */
-
-/*****************************************************************************
-
-   Description: FDKaacLdEnc_MdctTransform480:
-                The module FDKaacLdEnc_MdctTransform will perform the MDCT.
-                The MDCT supports the sine window and
-                the zero padded window. The algorithm of the MDCT
-                can be divided in  Windowing, PreModulation, Fft and
-                PostModulation.
-
-******************************************************************************/
-
-#include "transform.h"
-
-#include "dct.h"
-#include "psy_const.h"
-#include "aacEnc_rom.h"
-#include "FDK_tools_rom.h"
-
-INT FDKaacEnc_Transform_Real (const INT_PCM * pTimeData,
-                              FIXP_DBL *RESTRICT mdctData,
-                              const INT blockType,
-                              const INT windowShape,
-                              INT *prevWindowShape,
-                              const INT frameLength,
-                              INT *mdctData_e,
-                              INT filterType
-                             ,FIXP_DBL * RESTRICT overlapAddBuffer
-                             )
-{
-  const INT_PCM * RESTRICT timeData;
-
-  INT i;
-  /* tl: transform length
-     fl: left window slope length
-     nl: left window slope offset
-     fr: right window slope length
-     nr: right window slope offset
-     See FDK_tools/doc/intern/mdct.tex for more detail. */
-  int tl, fl, nl, fr, nr;
-
-  const FIXP_WTP * RESTRICT pLeftWindowPart;
-  const FIXP_WTP * RESTRICT pRightWindowPart;
-
-  /*
-   * MDCT scale:
-   * + 1: fMultDiv2() in windowing.
-   * + 1: Because of factor 1/2 in Princen-Bradley compliant windowed TDAC.
-   */
-  *mdctData_e = 1+1;
-
-  tl = frameLength;
-  timeData = pTimeData;
-
-  switch( blockType ) {
-    case LONG_WINDOW:
-      {
-        int offset = (windowShape == LOL_WINDOW) ? ((frameLength * 3)>>2) : 0;
-        fl = frameLength - offset;
-        fr = frameLength - offset;
-      }
-      break;
-    case STOP_WINDOW:
-      fl = frameLength >> 3;
-      fr = frameLength;
-      break;
-    case START_WINDOW: /* or StopStartSequence */
-      fl = frameLength;
-      fr = frameLength >> 3;
-      break;
-    case SHORT_WINDOW:
-      fl = fr = frameLength >> 3;
-      tl >>= 3;
-      timeData = pTimeData + 3*fl + (fl/2);
-      break;
-    default:
-      FDK_ASSERT(0);
-      return -1;
-      break;
-  }
-
-  /* Taken from FDK_tools/src/mdct.cpp Derive NR and NL */
-  nr = (tl - fr)>>1;
-  nl = (tl - fl)>>1;
-
-  pLeftWindowPart = FDKgetWindowSlope(fl, *prevWindowShape);
-  pRightWindowPart = FDKgetWindowSlope(fr, windowShape);
-
-  /* windowing */
-  if (filterType != FB_ELD)
-  {
-    /* Left window slope offset */
-    for (i=0; i<nl ; i++)
-    {
-#if SAMPLE_BITS == DFRACT_BITS   /* SPC_BITS and DFRACT_BITS should be equal. */
-      mdctData[(tl/2)+i] = - (FIXP_DBL) timeData[tl-i-1] >> ( 1 );
-#else
-      mdctData[(tl/2)+i] = - (FIXP_DBL) timeData[tl-i-1] << (DFRACT_BITS - SAMPLE_BITS - 1);
-#endif
-    }
-    /* Left window slope */
-    for (i=0; i<fl/2; i++)
-    {
-      FIXP_DBL tmp0;
-      tmp0 = fMultDiv2((FIXP_PCM)timeData[i+nl], pLeftWindowPart[i].v.im);
-      mdctData[(tl/2)+i+nl] = fMultSubDiv2(tmp0, (FIXP_PCM)timeData[tl-nl-i-1], pLeftWindowPart[i].v.re);
-    }
-
-    /* Right window slope offset */
-    for(i=0; i<nr; i++)
-    {
-#if SAMPLE_BITS == DFRACT_BITS    /* This should be SPC_BITS instead of DFRACT_BITS. */
-      mdctData[(tl/2)-1-i] = - (FIXP_DBL) timeData[tl+i] >> (1);
-#else
-      mdctData[(tl/2)-1-i] = - (FIXP_DBL) timeData[tl+i] << (DFRACT_BITS - SAMPLE_BITS - 1);
-#endif
-    }
-    /* Right window slope */
-    for (i=0; i<fr/2; i++)
-    {
-      FIXP_DBL tmp1;
-      tmp1 = fMultDiv2((FIXP_PCM)timeData[tl+nr+i], pRightWindowPart[i].v.re);
-      mdctData[(tl/2)-nr-i-1] = -fMultAddDiv2(tmp1, (FIXP_PCM)timeData[(tl*2)-nr-i-1], pRightWindowPart[i].v.im);
-    }
-  }
-
-  if (filterType == FB_ELD)
-  {
-    const FIXP_WTB *pWindowELD=NULL;
-    int i, N = frameLength, L = frameLength;
-
-    if (frameLength == 512) {
-      pWindowELD = ELDAnalysis512;
-    } else {
-      pWindowELD = ELDAnalysis480;
-    }
-
-    for(i=0;i<N/4;i++)
-    {
-      FIXP_DBL z0, outval;
-
-      z0 = (fMult((FIXP_PCM)timeData[L+N*3/4-1-i], pWindowELD[N/2-1-i])<< (WTS0-1)) + (fMult((FIXP_PCM)timeData[L+N*3/4+i], pWindowELD[N/2+i])<< (WTS0-1));
-
-      outval  = (fMultDiv2((FIXP_PCM)timeData[L+N*3/4-1-i], pWindowELD[N+N/2-1-i]) >> (-WTS1));
-      outval += (fMultDiv2((FIXP_PCM)timeData[L+N*3/4+i], pWindowELD[N+N/2+i]) >> (-WTS1) );
-      outval += (fMultDiv2(overlapAddBuffer[N/2+i], pWindowELD[2*N+i])>> (-WTS2-1));
-
-      overlapAddBuffer[N/2+i] = overlapAddBuffer[i];
-
-      overlapAddBuffer[i] = z0;
-      mdctData[i] = overlapAddBuffer[N/2+i] + (fMultDiv2(overlapAddBuffer[N+N/2-1-i], pWindowELD[2*N+N/2+i]) >> (-WTS2-1));
-
-      mdctData[N-1-i] = outval;
-      overlapAddBuffer[N+N/2-1-i] = outval;
-    }
-
-    for(i=N/4;i<N/2;i++)
-    {
-      FIXP_DBL z0, outval;
-
-      z0 = fMult((FIXP_PCM)timeData[L+N*3/4-1-i], pWindowELD[N/2-1-i]) << (WTS0-1);
-
-      outval  = (fMultDiv2((FIXP_PCM)timeData[L+N*3/4-1-i], pWindowELD[N+N/2-1-i]) >> (-WTS1)) ;
-      outval += (fMultDiv2(overlapAddBuffer[N/2+i], pWindowELD[2*N+i]) >> (-WTS2-1));
-
-      overlapAddBuffer[N/2+i] = overlapAddBuffer[i] + (fMult((FIXP_PCM)timeData[L-N/4+i], pWindowELD[N/2+i])<< (WTS0-1) );
-
-      overlapAddBuffer[i] = z0;
-      mdctData[i] = overlapAddBuffer[N/2+i] + (fMultDiv2(overlapAddBuffer[N+N/2-1-i], pWindowELD[2*N+N/2+i]) >> (-WTS2-1));
-
-      mdctData[N-1-i] = outval;
-      overlapAddBuffer[N+N/2-1-i] = outval;
-    }
-  }
-
-  dct_IV(mdctData, tl, mdctData_e);
-
-  *prevWindowShape = windowShape;
-
-  return 0;
-}
-