82 lines
2.6 KiB
C
82 lines
2.6 KiB
C
/*
|
|
* Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
struct pcm_feederdesc {
|
|
u_int32_t type;
|
|
u_int32_t in, out;
|
|
u_int32_t flags;
|
|
int idx;
|
|
};
|
|
|
|
struct feeder_class {
|
|
KOBJ_CLASS_FIELDS;
|
|
int align;
|
|
struct pcm_feederdesc *desc;
|
|
void *data;
|
|
};
|
|
|
|
struct pcm_feeder {
|
|
KOBJ_FIELDS;
|
|
int align;
|
|
struct pcm_feederdesc *desc;
|
|
void *data;
|
|
struct feeder_class *class;
|
|
struct pcm_feeder *source;
|
|
};
|
|
|
|
void feeder_register(void *p);
|
|
struct feeder_class *feeder_getclass(struct pcm_feederdesc *desc);
|
|
|
|
u_int32_t chn_fmtchain(struct pcm_channel *c, u_int32_t *to);
|
|
int chn_addfeeder(struct pcm_channel *c, struct feeder_class *fc, struct pcm_feederdesc *desc);
|
|
int chn_removefeeder(struct pcm_channel *c);
|
|
struct pcm_feeder *chn_findfeeder(struct pcm_channel *c, u_int32_t type);
|
|
|
|
#define FEEDER_DECLARE(feeder, palign, pdata) \
|
|
static struct feeder_class feeder ## _class = { \
|
|
name: #feeder, \
|
|
methods: feeder ## _methods, \
|
|
size: sizeof(struct pcm_feeder), \
|
|
align: palign, \
|
|
desc: feeder ## _desc, \
|
|
data: pdata, \
|
|
}; \
|
|
SYSINIT(feeder, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder ## _class);
|
|
|
|
#define FEEDER_ROOT 1
|
|
#define FEEDER_FMT 2
|
|
#define FEEDER_RATE 3
|
|
#define FEEDER_FILTER 4
|
|
#define FEEDER_VOLUME 5
|
|
#define FEEDER_LAST FEEDER_VOLUME
|
|
|
|
#define FEEDRATE_SRC 1
|
|
#define FEEDRATE_DST 2
|
|
|
|
|