apps/plugins/pdbox/PDa/extra/sformat.h

   1
   2 #ifndef SFORMAT_H__
   3 #define SFORMAT_H__
   4
   5 typedef unsigned short uint16;
   6 typedef unsigned long uint32;
   7
   8 #define FORMAT_WAVE 0
   9 #define FORMAT_AIFF 1
  10 #define FORMAT_NEXT 2
  11
  12 /* the NeXTStep sound header structure; can be big or little endian  */
  13
  14 typedef struct _nextstep
  15 {
  16     char ns_fileid[4];      /* magic number '.snd' if file is big-endian */
  17     uint32 ns_onset;        /* byte offset of first sample */
  18     uint32 ns_length;       /* length of sound in bytes */
  19     uint32 ns_format;        /* format; see below */
  20     uint32 ns_sr;           /* sample rate */
  21     uint32 ns_nchans;       /* number of channels */
  22     char ns_info[4];        /* comment */
  23 } t_nextstep;
  24
  25 #define NS_FORMAT_LINEAR_16     3
  26 #define NS_FORMAT_LINEAR_24     4
  27 #define NS_FORMAT_FLOAT         6
  28 #define SCALE (1./(1024. * 1024. * 1024. * 2.))
  29
  30 /* the WAVE header.  All Wave files are little endian.  We assume
  31     the "fmt" chunk comes first which is usually the case but perhaps not
  32     always; same for AIFF and the "COMM" chunk.   */
  33
  34 typedef unsigned word;
  35 typedef unsigned long dword;
  36
  37 typedef struct _wave
  38 {
  39     char  w_fileid[4];              /* chunk id 'RIFF'            */
  40     uint32 w_chunksize;             /* chunk size                 */
  41     char  w_waveid[4];              /* wave chunk id 'WAVE'       */
  42     char  w_fmtid[4];               /* format chunk id 'fmt '     */
  43     uint32 w_fmtchunksize;          /* format chunk size          */
  44     uint16  w_fmttag;               /* format tag, 1 for PCM      */
  45     uint16  w_nchannels;            /* number of channels         */
  46     uint32 w_samplespersec;         /* sample rate in hz          */
  47     uint32 w_navgbytespersec;       /* average bytes per second   */
  48     uint16  w_nblockalign;          /* number of bytes per sample */
  49     uint16  w_nbitspersample;       /* number of bits in a sample */
  50     char  w_datachunkid[4];         /* data chunk id 'data'       */
  51     uint32 w_datachunksize;         /* length of data chunk       */
  52 } t_wave;
  53
  54
  55 #endif
  56