| #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 |
| |
| #define WAV_RIFF COMPOSE_ID('R','I','F','F') |
| #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 */ |