98 lines
2.5 KiB
C
98 lines
2.5 KiB
C
/*
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* fmtheaders.h
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*/
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#ifndef _FMTHEADERS_H
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#define _FMTHEADERS_H 1
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#include <sys/types.h>
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/* Definitions for .VOC files */
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#define MAGIC_STRING "Creative Voice File\x1A"
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#define ACTUAL_VERSION 0x010A
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#define VOC_SAMPLESIZE 8
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#define MODE_MONO 0
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#define MODE_STEREO 1
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#define DATALEN(bp) ((u_long)(bp->datalen) | \
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((u_long)(bp->datalen_m) << 8) | \
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((u_long)(bp->datalen_h) << 16) )
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typedef struct _vocheader {
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u_char magic[20]; /* must be MAGIC_STRING */
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u_short headerlen; /* Headerlength, should be 0x1A */
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u_short version; /* VOC-file version */
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u_short coded_ver; /* 0x1233-version */
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} VocHeader;
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typedef struct _blocktype {
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u_char type;
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u_char datalen; /* low-byte */
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u_char datalen_m; /* medium-byte */
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u_char datalen_h; /* high-byte */
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} BlockType;
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typedef struct _voice_data {
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u_char tc;
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u_char pack;
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} Voice_data;
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typedef struct _ext_block {
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u_short tc;
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u_char pack;
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u_char mode;
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} Ext_Block;
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/* Definitions for Microsoft WAVE format */
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#define RIFF 0x46464952
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#define WAVE 0x45564157
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#define FMT 0x20746D66
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#define DATA 0x61746164
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#define PCM_CODE 1
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#define WAVE_MONO 1
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#define WAVE_STEREO 2
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/* it's in chunks like .voc and AMIGA iff, but my source say there
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are in only in this combination, so I combined them in one header;
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it works on all WAVE-file I have
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*/
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typedef struct _waveheader {
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u_long main_chunk; /* 'RIFF' */
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u_long length; /* filelen */
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u_long chunk_type; /* 'WAVE' */
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u_long sub_chunk; /* 'fmt ' */
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u_long sc_len; /* length of sub_chunk, =16 */
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u_short format; /* should be 1 for PCM-code */
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u_short modus; /* 1 Mono, 2 Stereo */
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u_long sample_fq; /* frequence of sample */
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u_long byte_p_sec;
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u_short byte_p_spl; /* samplesize; 1 or 2 bytes */
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u_short bit_p_spl; /* 8, 12 or 16 bit */
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u_long data_chunk; /* 'data' */
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u_long data_length; /* samplecount */
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} WaveHeader;
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typedef struct {
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long magic; /* must be equal to SND_MAGIC */
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long dataLocation; /* Offset or pointer to the raw data */
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long dataSize; /* Number of bytes of data in the raw data */
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long dataFormat; /* The data format code */
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long samplingRate; /* The sampling rate */
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long channelCount; /* The number of channels */
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} SndHeader;
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#define SND_MAGIC ((long int)0x2e736e64)
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#define SND_FORMAT_UNSPECIFIED (0)
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#define SND_FORMAT_MULAW_8 (1)
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#define SND_FORMAT_LINEAR_8 (2)
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#define SND_FORMAT_LINEAR_16 (3)
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#define SND_FORMAT_LINEAR_24 (4)
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#define SND_FORMAT_LINEAR_32 (5)
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#define SND_FORMAT_FLOAT (6)
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#endif
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