Remove FDK-AAC

1 files changed, 0 insertions, 208 deletions

diff --git a/libAACdec/src/ldfiltbank.cpp b/libAACdec/src/ldfiltbank.cpp
deleted file mode 100644
index c08cc41..0000000
--- a/libAACdec/src/ldfiltbank.cpp
+++ /dev/null
@@ -1,208 +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
------------------------------------------------------------------------------------------------------------ */
-
-/***************************************************************************\
-*
- *   filename: ldfiltbank.c
- *   project : MPEG-4 Audio Decoder
- *   contents/description: low delay filterbank
- *
-\***************************************************************************/
-
-#include "ldfiltbank.h"
-
-
-#include "aac_rom.h"
-#include "dct.h"
-#include "FDK_tools_rom.h"
-#include "mdct.h"
-
-#define LDFB_HEADROOM 2
-
-static void multE2_DinvF_fdk(INT_PCM *output, FIXP_DBL* x, const FIXP_WTB* fb, FIXP_DBL* z, const int N, const int  stride)
-{
-  int i, scale;
-
-  /*  scale for FIXP_DBL -> INT_PCM conversion. */
-  scale = (DFRACT_BITS - SAMPLE_BITS) - LDFB_HEADROOM;
-
-  for(i=0;i<N/4;i++)
-  {
-    FIXP_DBL z0, z2, tmp;
-
-    z2 = x[N/2+i];
-    z0 = z2 + ( fMultDiv2(z[N/2+i], fb[2*N + i]) >> (-WTS2-1) );
-
-    z[N/2+i] = x[N/2-1-i] + ( fMultDiv2(z[N + i], fb[2*N + N/2 + i]) >> (-WTS2-1) );
-
-    tmp = ( fMultDiv2(z[N/2+i], fb[N+N/2-1-i]) + fMultDiv2(z[i], fb[N+N/2+i]) ) ;
-
-#if (SAMPLE_BITS <= 16)
-    FDK_ASSERT( (-WTS1-1 + scale) >= 0);
-    output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp, -WTS1-1 + scale, SAMPLE_BITS);
-#else
-    FDK_ASSERT( (WTS1+1 - scale) >= 0);
-    output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp, WTS1+1 - scale, SAMPLE_BITS);
-#endif
-
-    z[i] = z0;
-    z[N + i] = z2;
-  }
-
-  for(i=N/4;i<N/2;i++)
-  {
-    FIXP_DBL z0, z2, tmp0, tmp1;
-
-    z2 = x[N/2+i];
-    z0 = z2 + ( fMultDiv2(z[N/2+i], fb[2*N + i]) >> (-WTS2-1) );
-
-    z[N/2+i] = x[N/2-1-i] + ( fMultDiv2(z[N + i], fb[2*N + N/2 + i]) >> (-WTS2-1) );
-
-    tmp0 = ( fMultDiv2(z[N/2+i], fb[N/2-1-i])   + fMultDiv2(z[i], fb[N/2+i])   ) ;
-    tmp1 = ( fMultDiv2(z[N/2+i], fb[N+N/2-1-i]) + fMultDiv2(z[i], fb[N+N/2+i]) ) ;
-
-#if (SAMPLE_BITS <= 16)
-    FDK_ASSERT( (-WTS0-1 + scale) >= 0);
-    output[(i-N/4)*stride]     = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp0, -WTS0-1 + scale, SAMPLE_BITS);
-    output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp1, -WTS1-1 + scale, SAMPLE_BITS);
-#else
-    FDK_ASSERT( (WTS0+1 - scale) >= 0);
-    output[(i-N/4)*stride]     = (INT_PCM)SATURATE_LEFT_SHIFT(tmp0, WTS0+1 - scale, SAMPLE_BITS);
-    output[(N*3/4-1-i)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp1, WTS1+1 - scale, SAMPLE_BITS);
-#endif
-    z[i] = z0;
-    z[N + i] = z2;
-  }
-
-  /* Exchange quarter parts of x to bring them in the "right" order */
-  for(i=0;i<N/4;i++)
-  {
-    FIXP_DBL tmp0 = fMultDiv2(z[i], fb[N/2+i]);
-
-#if (SAMPLE_BITS <= 16)
-    FDK_ASSERT( (-WTS0-1 + scale) >= 0);
-    output[(N*3/4 + i)*stride] = (INT_PCM)SATURATE_RIGHT_SHIFT(tmp0, -WTS0-1 + scale, SAMPLE_BITS);
-#else
-    FDK_ASSERT( (WTS0+1 - scale) >= 0);
-    output[(N*3/4 + i)*stride] = (INT_PCM)SATURATE_LEFT_SHIFT(tmp0, WTS0+1 - scale, SAMPLE_BITS);
-#endif
-  }
-}
-
-int InvMdctTransformLowDelay_fdk (FIXP_DBL *mdctData, const int mdctData_e, INT_PCM *output, FIXP_DBL *fs_buffer, const int stride, const int N) {
-
-  const FIXP_WTB *coef;
-  FIXP_DBL gain = (FIXP_DBL)0;
-  int scale = mdctData_e + MDCT_OUT_HEADROOM - LDFB_HEADROOM; /* The LDFB_HEADROOM is compensated inside multE2_DinvF_fdk() below */
-
-  /* Select LD window slope */
-  if (N == 512)
-    coef = (FIXP_WTB*)LowDelaySynthesis512;
-  else
-    coef = (FIXP_WTB*)LowDelaySynthesis480;
-
-  /*
-     Apply exponent and 1/N factor.
-     Note: "scale" is off by one because for LD_MDCT the window length is twice
-     the window length of a regular MDCT. This is corrected inside multE2_DinvF_fdk().
-     Refer to ISO/IEC 14496-3:2009 page 277, chapter 4.6.20.2 "Low Delay Window".
-   */
-  imdct_gain(&gain, &scale, N);
-
-  dct_IV(mdctData, N, &scale);
-
-  if (gain != (FIXP_DBL)0) {
-    scaleValuesWithFactor(mdctData, gain, N, scale);
-  } else {
-    scaleValues(mdctData, N, scale);
-  }
-
-  /* Since all exponent and factors have been applied, current exponent is zero. */
-  multE2_DinvF_fdk(output, mdctData, coef, fs_buffer, N, stride);
-
-  return (1);
-}
-
-
-
-