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 | |
25 | #ifndef QEMU_MIXENG_H |
26 | #define QEMU_MIXENG_H |
27 | |
28 | #ifdef FLOAT_MIXENG |
29 | typedef float mixeng_real; |
30 | struct mixeng_volume { int mute; mixeng_real r; mixeng_real l; }; |
31 | struct st_sample { mixeng_real l; mixeng_real r; }; |
32 | #else |
33 | struct mixeng_volume { int mute; int64_t r; int64_t l; }; |
34 | struct st_sample { int64_t l; int64_t r; }; |
35 | #endif |
36 | typedef struct st_sample st_sample; |
37 | |
38 | typedef void (t_sample) (struct st_sample *dst, const void *src, int samples); |
39 | typedef void (f_sample) (void *dst, const struct st_sample *src, int samples); |
40 | |
41 | extern t_sample *mixeng_conv[2][2][2][3]; |
42 | extern f_sample *mixeng_clip[2][2][2][3]; |
43 | |
44 | void *st_rate_start (int inrate, int outrate); |
45 | void st_rate_flow(void *opaque, st_sample *ibuf, st_sample *obuf, |
46 | size_t *isamp, size_t *osamp); |
47 | void st_rate_flow_mix(void *opaque, st_sample *ibuf, st_sample *obuf, |
48 | size_t *isamp, size_t *osamp); |
49 | void st_rate_stop (void *opaque); |
50 | void mixeng_clear (struct st_sample *buf, int len); |
51 | void mixeng_volume (struct st_sample *buf, int len, struct mixeng_volume *vol); |
52 | |
53 | #endif /* QEMU_MIXENG_H */ |
54 | |