| 1 | /*
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| 2 | * QEMU Mixing engine header
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| 3 | *
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| 4 | * Copyright (c) 2004-2005 Vassili Karpov (malc)
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| 5 | *
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| 6 | * Permission is hereby granted, free of charge, to any person obtaining a copy
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| 7 | * of this software and associated documentation files (the "Software"), to deal
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| 8 | * in the Software without restriction, including without limitation the rights
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| 9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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| 10 | * copies of the Software, and to permit persons to whom the Software is
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| 11 | * furnished to do so, subject to the following conditions:
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| 12 | *
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| 13 | * The above copyright notice and this permission notice shall be included in
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| 14 | * all copies or substantial portions of the Software.
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| 15 | *
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| 16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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| 20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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| 21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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| 22 | * THE SOFTWARE.
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| 23 | */
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| 24 | #ifndef QEMU_MIXENG_H
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| 25 | #define QEMU_MIXENG_H
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| 26 |
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| 27 | struct HWVoiceOut;
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| 28 |
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| 29 | #ifdef FLOAT_MIXENG
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| 30 | typedef float real_t;
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| 31 | typedef struct { int mute; real_t r; real_t l; } volume_t;
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| 32 | typedef struct { real_t l; real_t r; } st_sample_t;
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| 33 | #else
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| 34 | typedef struct { int mute; int64_t r; int64_t l; } volume_t;
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| 35 | typedef struct { int64_t l; int64_t r; } st_sample_t;
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| 36 | #endif
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| 37 |
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| 38 | typedef void (t_sample) (st_sample_t *dst, const void *src,
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| 39 | int samples, volume_t *vol);
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| 40 | typedef void (f_sample) (void *dst, const st_sample_t *src, int samples);
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| 41 |
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| 42 | extern t_sample *mixeng_conv[2][2][2][2];
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| 43 | extern f_sample *mixeng_clip[2][2][2][2];
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| 44 |
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| 45 | void *st_rate_start (int inrate, int outrate);
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| 46 | void st_rate_flow (void *opaque, st_sample_t *ibuf, st_sample_t *obuf,
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| 47 | int *isamp, int *osamp);
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| 48 | void st_rate_flow_mix (void *opaque, st_sample_t *ibuf, st_sample_t *obuf,
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| 49 | int *isamp, int *osamp);
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| 50 | void st_rate_stop (void *opaque);
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| 51 | void mixeng_clear (st_sample_t *buf, int len);
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| 52 | void mixeng_sniff_and_clear (struct HWVoiceOut *hw, st_sample_t *src, int len);
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| 53 |
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| 54 | #endif /* mixeng.h */
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