lib/bladeenc/encoder.h

   1 /*
   2                         (c) Copyright 1998-2001 - Tord Jansson
   3                         ======================================
   4
   5                 This file is part of the BladeEnc MP3 Encoder, based on
   6                 ISO's reference code for MPEG Layer 3 compression, and might
   7                 contain smaller or larger sections that are directly taken
   8                 from ISO's reference code.
   9
  10                 All changes to the ISO reference code herein are either
  11                 copyrighted by Tord Jansson (tord.jansson@swipnet.se)
  12                 or sublicensed to Tord Jansson by a third party.
  13
  14         BladeEnc is free software; you can redistribute this file
  15         and/or modify it under the terms of the GNU Lesser General Public
  16         License as published by the Free Software Foundation; either
  17         version 2.1 of the License, or (at your option) any later version.
  18
  19
  20
  21         ------------    Changes    ------------
  22
  23         2000-12-11  Andre Piotrowski
  24
  25         -       reformatted, redesigned
  26 */
  27
  28 #ifndef         __ENCODER__
  29 #define         __ENCODER__
  30
  31
  32
  33
  34
  35 #define         ORG_BUFFERS                             0   /* 1 = use original buffer concept */
  36
  37
  38
  39
  40
  41 /***********************************************************************
  42 *
  43 *  Encoder Definitions
  44 *
  45 ***********************************************************************/
  46
  47 /* Psychoacoustic Model 2 Definitions */
  48
  49 #define BLKSIZE         1024
  50 #define HBLKSIZE        513
  51 #define CBANDS          63
  52
  53
  54
  55
  56
  57 /***********************************************************************
  58 *
  59 *  Encoder Function Prototype Declarations
  60 *
  61 ***********************************************************************/
  62
  63
  64 void                                    initWindowFilterSubband (void);
  65
  66
  67
  68
  69 #if ORG_BUFFERS
  70
  71         void                                    rebuffer_audio
  72         (
  73                 short                                   buffer[2][1152],
  74                 short                                   *insamp,
  75                 unsigned int                    samples_read,
  76                 int                                             stereo
  77         );
  78         void                                    windowFilterSubband
  79         (
  80                 short                                   *pBuffer,
  81                 int                                             ch,
  82                 double                                  s[SBLIMIT]
  83         );
  84
  85 #else
  86
  87         void                                    rebuffer_audio
  88         (
  89                 const short                             *insamp,
  90                 FLOAT                                   buffer[2][2048],
  91                 int                                             *buffer_idx,
  92                 unsigned int                    samples_read,
  93                 int                                             stereo
  94         );
  95         void                                    windowFilterSubband
  96         (
  97                 const FLOAT                             *buffer,
  98                 int                                             buffer_idx,
  99                 double                                  s[SBLIMIT]
 100         );
 101
 102 #endif
 103
 104
 105
 106
 107
 108 #endif          /* __ENCODER__ */