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Add volume and mute control support in audiomixer

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This commit is contained in:
Wim Taymans 2017-11-23 16:55:32 +01:00
parent 4b84e34744
commit cb3198c458
5 changed files with 212 additions and 81 deletions
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51
spa/plugins/audiomixer/mix-ops.h Normal file
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/* Spa
* Copyright (C) 2017 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <string.h>
#include <stdio.h>
#include <spa/utils/defs.h>
typedef void (*mix_clear_func_t) (void *dst, int n_bytes);
typedef void (*mix_func_t) (void *dst, const void *src, int n_bytes);
typedef void (*mix_scale_func_t) (void *dst, const void *src, const double scale, int n_bytes);
typedef void (*mix_i_func_t) (void *dst, int dst_stride,
const void *src, int src_stride, int n_bytes);
typedef void (*mix_scale_i_func_t) (void *dst, int dst_stride,
const void *src, int src_stride, const double scale, int n_bytes);
enum {
FMT_S16,
FMT_F32,
FMT_MAX,
};
struct spa_audiomixer_ops {
mix_clear_func_t clear[FMT_MAX];
mix_func_t copy[FMT_MAX];
mix_func_t add[FMT_MAX];
mix_scale_func_t copy_scale[FMT_MAX];
mix_scale_func_t add_scale[FMT_MAX];
mix_i_func_t copy_i[FMT_MAX];
mix_i_func_t add_i[FMT_MAX];
mix_scale_i_func_t copy_scale_i[FMT_MAX];
mix_scale_i_func_t add_scale_i[FMT_MAX];
};
void spa_audiomixer_get_ops(struct spa_audiomixer_ops *ops);