mirror of
https://github.com/ericonr/sndio.git
synced 2024-02-18 04:45:21 -06:00
71980f4d34
- stream definitions (-ios) now must follow devices definitions they are attached to (-fMn). - the -n option is now a special "loopback" device and is thus used like -f, eg it must precede streams - channel numbers (-Cc options) correspond always to channel numbers of the hardware. - removed -u option (not needed anymore)
75 lines
2.9 KiB
C
75 lines
2.9 KiB
C
/* $OpenBSD$ */
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/*
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* Copyright (c) 2008 Alexandre Ratchov <alex@caoua.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef WAV_H
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#define WAV_H
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#include <sys/types.h>
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#include "aparams.h"
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#include "pipe.h"
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struct wav {
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struct pipe pipe;
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struct wav *next;
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#define HDR_AUTO 0 /* guess by looking at the file name */
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#define HDR_RAW 1 /* no headers, ie openbsd native ;-) */
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#define HDR_WAV 2 /* microsoft riff wave */
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unsigned hdr; /* HDR_RAW or HDR_WAV */
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unsigned xrun; /* xrun policy */
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struct aparams hpar; /* parameters to write on the header */
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off_t rbytes; /* bytes to read, -1 if no limit */
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off_t wbytes; /* bytes to write, -1 if no limit */
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off_t startpos; /* beginning of the data chunk */
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off_t endpos; /* end of the data chunk */
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off_t mmcpos; /* play/rec start point set by MMC */
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short *map; /* mulaw/alaw -> s16 conversion table */
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int slot; /* mixer ctl slot number */
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int mmc; /* use MMC control */
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int join; /* join/expand channels */
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unsigned vol; /* current volume */
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unsigned maxweight; /* dynamic range when vol == 127 */
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#define WAV_CFG 0 /* parameters read from headers */
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#define WAV_INIT 1 /* not trying to do anything */
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#define WAV_START 2 /* buffer allocated */
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#define WAV_READY 3 /* buffer filled enough */
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#define WAV_RUN 4 /* buffer attached to device */
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#define WAV_MIDI 5 /* midi "syx" file */
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unsigned pstate; /* one of above */
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unsigned mode; /* bitmap of MODE_* */
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struct dev *dev; /* device playing or recording */
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};
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extern struct fileops wav_ops;
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struct wav *wav_list;
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struct wav *wav_new_in(struct fileops *, struct dev *,
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unsigned, char *, unsigned, struct aparams *, unsigned, unsigned, int, int);
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struct wav *wav_new_out(struct fileops *, struct dev *,
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unsigned, char *, unsigned, struct aparams *, unsigned, int, int);
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unsigned wav_read(struct file *, unsigned char *, unsigned);
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unsigned wav_write(struct file *, unsigned char *, unsigned);
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void wav_close(struct file *);
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int wav_readhdr(int, struct aparams *, off_t *, off_t *, short **);
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int wav_writehdr(int, struct aparams *, off_t *, off_t);
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void wav_conv(unsigned char *, unsigned, short *);
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int wav_init(struct wav *);
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extern short wav_ulawmap[256];
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extern short wav_alawmap[256];
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#endif /* !defined(WAV_H) */
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