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56 lines
2.1 KiB
C
56 lines
2.1 KiB
C
/* Spa
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*
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* Copyright © 2018 Wim Taymans
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <string.h>
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#include <stdio.h>
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#include <spa/utils/defs.h>
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typedef void (*mix_clear_func_t) (void *dst, int n_bytes);
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typedef void (*mix_func_t) (void *dst, const void *src, int n_bytes);
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typedef void (*mix_scale_func_t) (void *dst, const void *src, const double scale, int n_bytes);
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typedef void (*mix_i_func_t) (void *dst, int dst_stride,
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const void *src, int src_stride, int n_bytes);
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typedef void (*mix_scale_i_func_t) (void *dst, int dst_stride,
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const void *src, int src_stride, const double scale, int n_bytes);
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enum {
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FMT_S16,
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FMT_F32,
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FMT_MAX,
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};
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struct spa_audiomixer_ops {
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mix_clear_func_t clear[FMT_MAX];
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mix_func_t copy[FMT_MAX];
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mix_func_t add[FMT_MAX];
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mix_scale_func_t copy_scale[FMT_MAX];
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mix_scale_func_t add_scale[FMT_MAX];
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mix_i_func_t copy_i[FMT_MAX];
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mix_i_func_t add_i[FMT_MAX];
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mix_scale_i_func_t copy_scale_i[FMT_MAX];
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mix_scale_i_func_t add_scale_i[FMT_MAX];
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};
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void spa_audiomixer_get_ops(struct spa_audiomixer_ops *ops);
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