mp3lib/mpg123.h

   1 /*
   2  * mpg123 defines
   3  * used source: musicout.h from mpegaudio package
   4  */
   5
   6 #include "../config.h"
   7
   8 #ifndef M_PI
   9 #define M_PI            3.141592653589793238462
  10 #endif
  11 #ifndef M_SQRT2
  12 #define M_SQRT2         1.414213562373095048802
  13 #endif
  14 #define REAL_IS_FLOAT
  15 #define NEW_DCT9
  16
  17 #undef MPG123_REMOTE           /* Get rid of this stuff for Win32 */
  18
  19 /*
  20 #  define real float
  21 #  define real long double
  22 #  define real double
  23 #include "audio.h"
  24
  25 // #define              AUDIOBUFSIZE            4096
  26 */
  27
  28 #define         FALSE                   0
  29 #define         TRUE                    1
  30
  31 #define         MAX_NAME_SIZE           81
  32 #define         SBLIMIT                 32
  33 #define         SCALE_BLOCK             12
  34 #define         SSLIMIT                 18
  35
  36 #define         MPG_MD_STEREO           0
  37 #define         MPG_MD_JOINT_STEREO     1
  38 #define         MPG_MD_DUAL_CHANNEL     2
  39 #define         MPG_MD_MONO             3
  40
  41 /* #define MAXOUTBURST 32768 */
  42
  43 /* Pre Shift fo 16 to 8 bit converter table */
  44 #define AUSHIFT (3)
  45
  46 struct al_table
  47 {
  48   short bits;
  49   short d;
  50 };
  51
  52 struct frame {
  53          struct al_table *alloc;
  54          int (*synth)(real *,int,unsigned char *,int *);
  55     int (*synth_mono)(real *,unsigned char *,int *);
  56     int stereo;
  57     int jsbound;
  58     int single;
  59     int II_sblimit;
  60     int down_sample_sblimit;
  61          int lsf;
  62          int mpeg25;
  63     int down_sample;
  64          int header_change;
  65     int lay;
  66     int error_protection;
  67     int bitrate_index;
  68     long sampling_frequency;
  69     int padding;
  70     int extension;
  71     int mode;
  72          int mode_ext;
  73     int copyright;
  74          int original;
  75          int emphasis;
  76          long framesize; /* computed framesize */
  77 };
  78
  79
  80 struct gr_info_s {
  81       int scfsi;
  82       unsigned part2_3_length;
  83       unsigned big_values;
  84       unsigned scalefac_compress;
  85       unsigned block_type;
  86       unsigned mixed_block_flag;
  87       unsigned table_select[3];
  88       unsigned subblock_gain[3];
  89       unsigned maxband[3];
  90       unsigned maxbandl;
  91       unsigned maxb;
  92       unsigned region1start;
  93       unsigned region2start;
  94       unsigned preflag;
  95       unsigned scalefac_scale;
  96       unsigned count1table_select;
  97       real *full_gain[3];
  98       real *pow2gain;
  99 };
 100
 101 struct III_sideinfo
 102 {
 103   unsigned main_data_begin;
 104   unsigned private_bits;
 105   struct {
 106          struct gr_info_s gr[2];
 107   } ch[2];
 108 };
 109
 110 static long freqs[9];
 111 extern real mp3lib_decwin[(512+32)];
 112 extern real *pnts[];
 113
 114 static int do_layer2(struct frame *fr,int single);
 115 static int do_layer3(struct frame *fr,int single);
 116 static int synth_1to1(real *bandPtr,int channel,unsigned char *out,int *pnt);
 117
 118 extern int synth_1to1_pent( real *,int,short * );
 119 extern void make_decode_tables_MMX(long scaleval);
 120 extern int synth_1to1_MMX( real *,int,short * );
 121 extern int synth_1to1_MMX_s(real *, int, short *, short *, int *);
 122 extern void dct64(real *a,real *b,real *c);
 123
 124 extern void dct36_3dnow(real *,real *,real *,real *,real *);
 125 extern void dct36_3dnowex(real *,real *,real *,real *,real *);
 126 extern void dct36_sse(real *,real *,real *,real *,real *);
 127
 128 typedef int (*synth_func_t)( real *,int,short * );
 129 typedef void (*dct36_func_t)(real *,real *,real *,real *,real *);