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/* PipeWire
*
* Copyright © 2020 Wim Taymans
* Copyright © 2021 Sanchayan Maity <sanchayan@asymptotic.io>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef PULSE_SERVER_VOLUME_H
#define PULSE_SERVER_VOLUME_H
#include <stdbool.h>
#include <stdint.h>
#include "format.h"
struct spa_pod;
struct volume {
uint8_t channels;
float values[CHANNELS_MAX];
};
#define VOLUME_INIT \
(struct volume) { \
.channels = 0, \
}
struct volume_info {
struct volume volume;
struct channel_map map;
bool mute;
float level;
float base;
uint32_t steps;
#define VOLUME_HW_VOLUME (1<<0)
#define VOLUME_HW_MUTE (1<<1)
uint32_t flags;
};
#define VOLUME_INFO_INIT \
(struct volume_info) { \
.volume = VOLUME_INIT, \
.mute = false, \
.level = 1.0, \
.base = 1.0, \
.steps = 256, \
}
static inline bool volume_valid(const struct volume *vol)
{
if (vol->channels == 0 || vol->channels > CHANNELS_MAX)
return false;
return true;
}
static inline void volume_make(struct volume *vol, uint8_t channels)
{
uint8_t i;
for (i = 0; i < channels; i++)
vol->values[i] = 1.0f;
vol->channels = channels;
}
int volume_compare(struct volume *vol, struct volume *other);
int volume_parse_param(const struct spa_pod *param, struct volume_info *info, bool monitor);
#endif
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