fmtheaders.h

mips cpu 君正4730 4740的 ucosii 源码 包括系统 摄像头 网络 文件系统等等测试

#ifndef _FMTHEADERS_H
#define _FMTHEADERS_H	1

#include <sys/types.h>

/* Definitions for .VOC files */

#define MAGIC_STRING	"Creative Voice File\x1A"
#define ACTUAL_VERSION	0x010A
#define VOC_SAMPLESIZE	8

#define MODE_MONO	0
#define MODE_STEREO	1

#define DATALEN(bp)	((u_long)(bp->datalen) | \
                         ((u_long)(bp->datalen_m) << 8) | \
                         ((u_long)(bp->datalen_h) << 16) )

typedef struct _vocheader {
  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 _blocktype {
  u_char  type;
  u_char  datalen;	/* low-byte    */
  u_char  datalen_m;	/* medium-byte */
  u_char  datalen_h;	/* high-byte   */
} BlockType;

typedef struct _voice_data {
  u_char  tc;
  u_char  pack;
} Voice_data;

typedef struct _ext_block {
  u_short tc;
  u_char  pack;
  u_char  mode;
} Ext_Block;


/* Definitions for Microsoft WAVE format */

#define RIFF		0x46464952	
#define WAVE		0x45564157
#define FMT		0x20746D66
#define DATA		0x61746164
#define PCM_CODE	1
#define WAVE_MONO	1
#define WAVE_STEREO	2

/* 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 _waveheader {
  u_long	main_chunk;	/* 'RIFF' */
  u_long	length;		/* filelen */
  u_long	chunk_type;	/* 'WAVE' */

  u_long	sub_chunk;	/* 'fmt ' */
  u_long	sc_len;		/* length of sub_chunk, =16 */
  u_short	format;		/* should be 1 for PCM-code */
  u_short	modus;		/* 1 Mono, 2 Stereo */
  u_long	sample_fq;	/* frequence of sample */
  u_long	byte_p_sec;
  u_short	byte_p_spl;	/* samplesize; 1 or 2 bytes */
  u_short	bit_p_spl;	/* 8, 12 or 16 bit */ 

  u_long	data_chunk;	/* 'data' */
  u_long	data_length;	/* samplecount */
} WaveHeader;

typedef struct {
    long magic;         /* must be equal to SND_MAGIC */
    long dataLocation;  /* Offset or pointer to the raw data */
    long dataSize;      /* Number of bytes of data in the raw data */
    long dataFormat;    /* The data format code */
    long samplingRate;  /* The sampling rate */
    long channelCount;  /* The number of channels */
} SndHeader;

#define SND_MAGIC ((long int)0x2e736e64)

#define SND_FORMAT_UNSPECIFIED          (0)
#define SND_FORMAT_MULAW_8              (1)
#define SND_FORMAT_LINEAR_8             (2)
#define SND_FORMAT_LINEAR_16            (3)
#define SND_FORMAT_LINEAR_24            (4)
#define SND_FORMAT_LINEAR_32            (5)
#define SND_FORMAT_FLOAT                (6)

#endif