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#ifndef FORMATS_H
#define FORMATS_H 1
#include <endian.h>
#include <byteswap.h>
/* Definitions for .VOC files */
#define VOC_MAGIC_STRING "Creative Voice File\x1A"
#define VOC_ACTUAL_VERSION 0x010A
#define VOC_SAMPLESIZE 8
#define VOC_MODE_MONO 0
#define VOC_MODE_STEREO 1
#define VOC_DATALEN(bp) ((u_long)(bp->datalen) | \
((u_long)(bp->datalen_m) << 8) | \
((u_long)(bp->datalen_h) << 16) )
typedef struct voc_header {
u_char magic[20]; /* must be MAGIC_STRING */
u_short headerlen; /* Headerlength, should be 0x1A */
u_short version; /* VOC-file version */
u_short coded_ver; /* 0x1233-version */
} VocHeader;
typedef struct voc_blocktype {
u_char type;
u_char datalen; /* low-byte */
u_char datalen_m; /* medium-byte */
u_char datalen_h; /* high-byte */
} VocBlockType;
typedef struct voc_voice_data {
u_char tc;
u_char pack;
} VocVoiceData;
typedef struct voc_ext_block {
u_short tc;
u_char pack;
u_char mode;
} VocExtBlock;
/* Definitions for Microsoft WAVE format */
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define COMPOSE_ID(a,b,c,d) ((a) | ((b)<<8) | ((c)<<16) | ((d)<<24))
#define LE_SHORT(v) (v)
#define LE_INT(v) (v)
#define BE_SHORT(v) bswap_16(v)
#define BE_INT(v) bswap_32(v)
#elif __BYTE_ORDER == __BIG_ENDIAN
#define COMPOSE_ID(a,b,c,d) ((d) | ((c)<<8) | ((b)<<16) | ((a)<<24))
#define LE_SHORT(v) bswap_16(v)
#define LE_INT(v) bswap_32(v)
#define BE_SHORT(v) (v)
#define BE_INT(v) (v)
#else
#error "Wrong endian"
#endif
/* Note: the following macros evaluate the parameter v twice */
#define TO_CPU_SHORT(v, be) \
((be) ? BE_SHORT(v) : LE_SHORT(v))
#define TO_CPU_INT(v, be) \
((be) ? BE_INT(v) : LE_INT(v))
#define WAV_RIFF COMPOSE_ID('R','I','F','F')
#define WAV_RIFX COMPOSE_ID('R','I','F','X')
#define WAV_WAVE COMPOSE_ID('W','A','V','E')
#define WAV_FMT COMPOSE_ID('f','m','t',' ')
#define WAV_DATA COMPOSE_ID('d','a','t','a')
/* WAVE fmt block constants from Microsoft mmreg.h header */
#define WAV_FMT_PCM 0x0001
#define WAV_FMT_IEEE_FLOAT 0x0003
#define WAV_FMT_DOLBY_AC3_SPDIF 0x0092
#define WAV_FMT_EXTENSIBLE 0xfffe
/* Used with WAV_FMT_EXTENSIBLE format */
#define WAV_GUID_TAG "\x00\x00\x00\x00\x10\x00\x80\x00\x00\xAA\x00\x38\x9B\x71"
/* it's in chunks like .voc and AMIGA iff, but my source say there
are in only in this combination, so I combined them in one header;
it works on all WAVE-file I have
*/
typedef struct {
u_int magic; /* 'RIFF' */
u_int length; /* filelen */
u_int type; /* 'WAVE' */
} WaveHeader;
typedef struct {
u_short format; /* see WAV_FMT_* */
u_short channels;
u_int sample_fq; /* frequence of sample */
u_int byte_p_sec;
u_short byte_p_spl; /* samplesize; 1 or 2 bytes */
u_short bit_p_spl; /* 8, 12 or 16 bit */
} WaveFmtBody;
typedef struct {
WaveFmtBody format;
u_short ext_size;
u_short bit_p_spl;
u_int channel_mask;
u_short guid_format; /* WAV_FMT_* */
u_char guid_tag[14]; /* WAV_GUID_TAG */
} WaveFmtExtensibleBody;
typedef struct {
u_int type; /* 'data' */
u_int length; /* samplecount */
} WaveChunkHeader;
/* Definitions for Sparc .au header */
#define AU_MAGIC COMPOSE_ID('.','s','n','d')
#define AU_FMT_ULAW 1
#define AU_FMT_LIN8 2
#define AU_FMT_LIN16 3
typedef struct au_header {
u_int magic; /* '.snd' */
u_int hdr_size; /* size of header (min 24) */
u_int data_size; /* size of data */
u_int encoding; /* see to AU_FMT_XXXX */
u_int sample_rate; /* sample rate */
u_int channels; /* number of channels (voices) */
} AuHeader;
#endif /* FORMATS */
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