apps/codecs/libmusepack/mpc_config.h

   1 /***************************************************************************
   2  *             __________               __   ___.
   3  *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
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   7  *                     \/            \/     \/    \/            \/
   8  * $Id$
   9  *
  10  * Copyright (C) 2008 by Andree Buschmann
  11  *
  12  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version 2
  15  * of the License, or (at your option) any later version.
  16  *
  17  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
  18  * KIND, either express or implied.
  19  *
  20  ****************************************************************************/
  21
  22 #ifndef _mpc_config_h_
  23 #define _mpc_config_h_
  24
  25 #include "config.h"
  26
  27 /* choose fixed point or floating point */
  28 #define MPC_FIXED_POINT
  29
  30 #ifndef MPC_FIXED_POINT
  31 #error FIXME, mpc will not with floating point now
  32 #endif
  33
  34 /* choose speed vs. accuracy for MPC_FIXED_POINT
  35  * speed-setting will increase decoding speed on ARM only (+20%), loss of accuracy
  36  * equals about 5 dB SNR (15bit output precision) to not use the speed-optimization
  37  * -> comment OPTIMIZE_FOR_SPEED here for desired target */
  38 #if defined(MPC_FIXED_POINT)
  39    #if defined(CPU_COLDFIRE)
  40       // do nothing
  41    #elif defined(CPU_ARM)
  42       //#define OPTIMIZE_FOR_SPEED
  43    #else
  44       #define OPTIMIZE_FOR_SPEED
  45    #endif
  46 #else
  47     // do nothing
  48 #endif
  49
  50 #endif