src/usr.bin/aucat/wav.h - diff

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version 1.7, 2010/04/03 17:59:17

version 1.8, 2010/04/06 20:07:01

Line 28

#define HDR_RAW 1 /* no headers, ie openbsd native ;-) */

#define HDR_WAV 2 /* microsoft riff wave */

unsigned hdr; /* HDR_RAW or HDR_WAV */

unsigned xrun; /* xrun policy */

struct aparams hpar; /* parameters to write on the header */

off_t rbytes; /* bytes to read, -1 if no limit */

off_t wbytes; /* bytes to write, -1 if no limit */

off_t startpos; /* beginning of the data chunk */

off_t endpos; /* end of the data chunk */

off_t mmcpos; /* play/rec start point set by MMC */

short *map; /* mulaw/alaw -> s16 conversion table */

int slot; /* mixer ctl slot number */

int tr; /* use MMC control */

unsigned vol; /* current volume */

unsigned maxweight; /* dynamic range when vol == 127 */

#define WAV_INIT 0 /* not trying to do anything */

#define WAV_START 1 /* buffer allocated */

#define WAV_READY 2 /* buffer filled enough */

#define WAV_RUN 3 /* buffer attached to device */

#define WAV_FAILED 4 /* failed to seek */

unsigned pstate; /* one of above */

unsigned mode; /* bitmap of MODE_* */

};

extern struct fileops wav_ops;

struct wav *wav_new_in(struct fileops *, char *, unsigned,

struct wav *wav_new_in(struct fileops *, unsigned, char *, unsigned,

struct aparams *, unsigned, unsigned);

struct aparams *, unsigned, unsigned, int);

struct wav *wav_new_out(struct fileops *, char *, unsigned,

struct wav *wav_new_out(struct fileops *, unsigned, char *, unsigned,

struct aparams *, unsigned);

struct aparams *, unsigned, int);

unsigned wav_read(struct file *, unsigned char *, unsigned);

unsigned wav_write(struct file *, unsigned char *, unsigned);

void wav_close(struct file *);

int wav_readhdr(int, struct aparams *, off_t *, short **);

int wav_readhdr(int, struct aparams *, off_t *, off_t *, short **);

int wav_writehdr(int, struct aparams *);

int wav_writehdr(int, struct aparams *, off_t *, off_t);

void wav_conv(unsigned char *, unsigned, short *);

/* legacy */