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Revision 1.1, Fri Nov 23 07:03:28 2012 UTC (11 years, 5 months ago) by ratchov
Branch: MAIN
CVS Tags: OPENBSD_5_9_BASE, OPENBSD_5_9, OPENBSD_5_8_BASE, OPENBSD_5_8, OPENBSD_5_7_BASE, OPENBSD_5_7, OPENBSD_5_6_BASE, OPENBSD_5_6, OPENBSD_5_5_BASE, OPENBSD_5_5, OPENBSD_5_4_BASE, OPENBSD_5_4, OPENBSD_5_3_BASE, OPENBSD_5_3 

Remplace aucat server by a new sndiod daemon aimed to be simpler
smaller and faster than aucat. It's a drop in replacement with the
following exceptions that don't affect the default setup:
  - The sample rate and the encoding are a per-device parameters
    thus -r and -e options must precede the corresponding -f option
  - MIDI thru boxes are dynamically created and no -M option
    is required anymore, so -M was removed.
  - MIDI ports are exposed with a new ``midi/N'' name, rather
    than abusing MIDI thru boxes.
with help from armani@, ok deraadt@

/*	$OpenBSD: abuf.h,v 1.1 2012/11/23 07:03:28 ratchov Exp $	*/
/*
 * Copyright (c) 2008-2012 Alexandre Ratchov <alex@caoua.org>
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
#ifndef ABUF_H
#define ABUF_H

struct abuf {
	int start;	/* offset (frames) where stored data starts */
	int used;	/* frames stored in the buffer */
	int len;	/* total size of the buffer (frames) */
	unsigned char *data;
};

void abuf_init(struct abuf *, unsigned int);
void abuf_done(struct abuf *);
void abuf_log(struct abuf *);
unsigned char *abuf_rgetblk(struct abuf *, int *);
unsigned char *abuf_wgetblk(struct abuf *, int *);
void abuf_rdiscard(struct abuf *, int);
void abuf_wcommit(struct abuf *, int);

#endif /* !defined(ABUF_H) */