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Annotation of src/usr.bin/aucat/wav.h, Revision 1.8

1.8     ! ratchov     1: /*     $OpenBSD: wav.h,v 1.7 2010/04/03 17:59:17 ratchov Exp $ */
1.1       ratchov     2: /*
                      3:  * Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org>
                      4:  *
                      5:  * Permission to use, copy, modify, and distribute this software for any
                      6:  * purpose with or without fee is hereby granted, provided that the above
                      7:  * copyright notice and this permission notice appear in all copies.
                      8:  *
                      9:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     10:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     11:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     12:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     13:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     14:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     15:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     16:  */
                     17: #ifndef WAV_H
                     18: #define WAV_H
                     19:
                     20: #include <sys/types.h>
                     21:
1.4       ratchov    22: #include "aparams.h"
1.1       ratchov    23: #include "pipe.h"
                     24:
                     25: struct wav {
                     26:        struct pipe pipe;
                     27: #define HDR_AUTO       0       /* guess by looking at the file name */
                     28: #define HDR_RAW                1       /* no headers, ie openbsd native ;-) */
                     29: #define HDR_WAV                2       /* microsoft riff wave */
                     30:        unsigned hdr;           /* HDR_RAW or HDR_WAV */
1.8     ! ratchov    31:        unsigned xrun;          /* xrun policy */
1.1       ratchov    32:        struct aparams hpar;    /* parameters to write on the header */
                     33:        off_t rbytes;           /* bytes to read, -1 if no limit */
                     34:        off_t wbytes;           /* bytes to write, -1 if no limit */
1.8     ! ratchov    35:        off_t startpos;         /* beginning of the data chunk */
        !            36:        off_t endpos;           /* end of the data chunk */
        !            37:        off_t mmcpos;           /* play/rec start point set by MMC */
1.3       ratchov    38:        short *map;             /* mulaw/alaw -> s16 conversion table */
1.8     ! ratchov    39:        int slot;               /* mixer ctl slot number */
        !            40:        int tr;                 /* use MMC control */
        !            41:        unsigned vol;           /* current volume */
        !            42:        unsigned maxweight;     /* dynamic range when vol == 127 */
        !            43: #define WAV_INIT       0       /* not trying to do anything */
        !            44: #define WAV_START      1       /* buffer allocated */
        !            45: #define WAV_READY      2       /* buffer filled enough */
        !            46: #define WAV_RUN                3       /* buffer attached to device */
        !            47: #define WAV_FAILED     4       /* failed to seek */
        !            48:        unsigned pstate;        /* one of above */
        !            49:        unsigned mode;          /* bitmap of MODE_* */
1.1       ratchov    50: };
                     51:
                     52: extern struct fileops wav_ops;
                     53:
1.8     ! ratchov    54: struct wav *wav_new_in(struct fileops *, unsigned, char *, unsigned,
        !            55:     struct aparams *, unsigned, unsigned, int);
        !            56: struct wav *wav_new_out(struct fileops *, unsigned, char *, unsigned,
        !            57:     struct aparams *, unsigned, int);
1.1       ratchov    58: unsigned wav_read(struct file *, unsigned char *, unsigned);
                     59: unsigned wav_write(struct file *, unsigned char *, unsigned);
                     60: void wav_close(struct file *);
1.8     ! ratchov    61: int wav_readhdr(int, struct aparams *, off_t *, off_t *, short **);
        !            62: int wav_writehdr(int, struct aparams *, off_t *, off_t);
1.3       ratchov    63: void wav_conv(unsigned char *, unsigned, short *);
1.1       ratchov    64:
                     65: /* legacy */
                     66: int legacy_play(char *, char *);
1.3       ratchov    67:
                     68: extern short wav_ulawmap[256];
                     69: extern short wav_alawmap[256];
1.1       ratchov    70:
                     71: #endif /* !defined(WAV_H) */