scsi: convert to QEMU Object Model
[qemu.git] / audio / mixeng.h
1 /*
2 * QEMU Mixing engine header
3 *
4 * Copyright (c) 2004-2005 Vassili Karpov (malc)
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22 * THE SOFTWARE.
23 */
24 #ifndef QEMU_MIXENG_H
25 #define QEMU_MIXENG_H
26
27 #ifdef FLOAT_MIXENG
28 typedef float mixeng_real;
29 struct mixeng_volume { int mute; mixeng_real r; mixeng_real l; };
30 struct st_sample { mixeng_real l; mixeng_real r; };
31 #else
32 struct mixeng_volume { int mute; int64_t r; int64_t l; };
33 struct st_sample { int64_t l; int64_t r; };
34 #endif
35
36 typedef void (t_sample) (struct st_sample *dst, const void *src, int samples);
37 typedef void (f_sample) (void *dst, const struct st_sample *src, int samples);
38
39 extern t_sample *mixeng_conv[2][2][2][3];
40 extern f_sample *mixeng_clip[2][2][2][3];
41
42 void *st_rate_start (int inrate, int outrate);
43 void st_rate_flow (void *opaque, struct st_sample *ibuf, struct st_sample *obuf,
44 int *isamp, int *osamp);
45 void st_rate_flow_mix (void *opaque, struct st_sample *ibuf, struct st_sample *obuf,
46 int *isamp, int *osamp);
47 void st_rate_stop (void *opaque);
48 void mixeng_clear (struct st_sample *buf, int len);
49 void mixeng_volume (struct st_sample *buf, int len, struct mixeng_volume *vol);
50
51 #endif /* mixeng.h */