toolame-02l/common.h

   1 #ifndef COMMON_DOT_H
   2 #define COMMON_DOT_H
   3
   4 #ifndef EXIT_SUCCESS
   5 #define EXIT_SUCCESS 0
   6 #endif
   7
   8 #ifndef EXIT_FAILURE
   9 #define EXIT_FAILURE 1
  10 #endif
  11
  12 #define FLOAT float
  13
  14 #ifndef FALSE
  15 #define         FALSE                   0
  16 #endif
  17
  18 #ifndef TRUE
  19 #define         TRUE                    1
  20 #endif
  21
  22 #define         NULL_CHAR               '\0'
  23
  24 #define         MAX_U_32_NUM            0xFFFFFFFF
  25 #ifndef PI
  26 #define         PI                      3.14159265358979
  27 #endif
  28 #define         PI2                     PI/2
  29 #define         PI4                     PI/4
  30 #define         PI64                    PI/64
  31 #define         LN_TO_LOG10             0.2302585093
  32
  33 #define         VOL_REF_NUM             0
  34 #define         MPEG_AUDIO_ID           1
  35 #define         MPEG_PHASE2_LSF         0       /* 1995-07-11 SHN */
  36 #define         MAC_WINDOW_SIZE         24
  37
  38 #define         MONO                    1
  39 #define         STEREO                  2
  40 #define         BITS_IN_A_BYTE          8
  41 #define         WORD                    16
  42 #define         MAX_NAME_SIZE           255
  43 #define         SBLIMIT                 32
  44 #define         SSLIMIT                 18
  45 #define         FFT_SIZE                1024
  46 #define         HAN_SIZE                512
  47 #define         SCALE_BLOCK             12
  48 #define         SCALE_RANGE             64
  49 #define         SCALE                   32768
  50 #define         CRC16_POLYNOMIAL        0x8005
  51 #define         CRC8_POLYNOMIAL         0x1D
  52
  53 /* MPEG Header Definitions - Mode Values */
  54
  55 #define         MPG_MD_STEREO           0
  56 #define         MPG_MD_JOINT_STEREO     1
  57 #define         MPG_MD_DUAL_CHANNEL     2
  58 #define         MPG_MD_MONO             3
  59
  60 /* Mode Extension */
  61
  62 #define         MPG_MD_LR_LR             0
  63 #define         MPG_MD_LR_I              1
  64 #define         MPG_MD_MS_LR             2
  65 #define         MPG_MD_MS_I              3
  66
  67
  68 /* "bit_stream.h" Definitions */
  69
  70 #define         MINIMUM         4       /* Minimum size of the buffer in bytes */
  71 #define         MAX_LENGTH      32      /* Maximum length of word written or
  72                                            read from bit stream */
  73 #define         READ_MODE       0
  74 #define         WRITE_MODE      1
  75 #define         ALIGNING        8
  76 #define         BINARY          0
  77 #define         ASCII           1
  78
  79 #define         BUFFER_SIZE     4096
  80
  81 #define FLOAT8 float
  82 #define         MIN(A, B)       ((A) < (B) ? (A) : (B))
  83 #define         MAX(A, B)       ((A) > (B) ? (A) : (B))
  84 /***********************************************************************
  85 *
  86 *  Global Type Definitions
  87 *
  88 ***********************************************************************/
  89
  90 /* Structure for Reading Layer II Allocation Tables from File */
  91
  92 typedef struct
  93 {
  94   unsigned int steps;
  95   unsigned int bits;
  96   unsigned int group;
  97   unsigned int quant;
  98 }
  99 sb_alloc, *alloc_ptr;
 100
 101 typedef sb_alloc al_table[SBLIMIT][16];
 102
 103 /* Header Information Structure */
 104
 105 typedef struct
 106 {
 107   int version;
 108   int lay;
 109   int error_protection;
 110   int dab_extension;
 111   int dab_length;
 112   int bitrate_index;
 113   int sampling_frequency;
 114   int padding;
 115   int extension;
 116   int mode;
 117   int mode_ext;
 118   int copyright;
 119   int original;
 120   int emphasis;
 121 }
 122 frame_header;
 123
 124 /* Parent Structure Interpreting some Frame Parameters in Header */
 125
 126 typedef struct
 127 {
 128   frame_header *header;         /* raw header information */
 129   int actual_mode;              /* when writing IS, may forget if 0 chs */
 130   al_table *alloc;              /* bit allocation table read in */
 131   int tab_num;                  /* number of table as loaded */
 132   int nch;                      /* num channels: 1 for mono, 2 for stereo */
 133   int jsbound;                  /* first band of joint stereo coding */
 134   int sblimit;                  /* total number of sub bands */
 135 }
 136 frame_info;
 137
 138 typedef struct bit_stream_struc
 139 {
 140   FILE *pt;                     /* pointer to bit stream device */
 141   unsigned char *buf;           /* bit stream buffer */
 142   int buf_size;                 /* size of buffer (in number of bytes) */
 143   long totbit;                  /* bit counter of bit stream */
 144   int buf_byte_idx;             /* pointer to top byte in buffer */
 145   int buf_bit_idx;              /* pointer to top bit of top byte in buffer */
 146   int mode;                     /* bit stream open in read or write mode */
 147   int eob;                      /* end of buffer index */
 148   int eobs;                     /* end of bit stream flag */
 149   char format;
 150
 151   /* format of file in rd mode (BINARY/ASCII) */
 152 }
 153 Bit_stream_struc;
 154
 155
 156 enum byte_order
 157 { order_unknown, order_bigEndian, order_littleEndian };
 158 extern enum byte_order NativeByteOrder;
 159
 160 /* "bit_stream.h" Type Definitions */
 161
 162
 163
 164
 165 /***********************************************************************
 166 *
 167 *  Global Variable External Declarations
 168 *
 169 ***********************************************************************/
 170
 171 extern char *mode_names[4];
 172 extern char *version_names[2];
 173 extern double s_freq[2][4];
 174 extern int bitrate[2][15];
 175 extern double multiple[64];
 176
 177 int js_bound (int);
 178 void hdr_to_frps (frame_info *);
 179 int toolame_BitrateIndex (int, int);
 180 int toolame_SmpFrqIndex (long, int *);
 181 void new_ext (char *filename, char *extname, char *newname);
 182
 183 #endif