kopia lustrzana https://github.com/OpenRTX/OpenRTX
89 wiersze
2.7 KiB
C
89 wiersze
2.7 KiB
C
/***************************************************************************
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* Copyright (C) 2022 - 2023 by Federico Amedeo Izzo IU2NUO, *
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* Niccolò Izzo IU2KIN *
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* Silvano Seva IU2KWO *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 3 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, see <http://www.gnu.org/licenses/> *
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***************************************************************************/
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#ifndef AUDIO_PATH_H
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#define AUDIO_PATH_H
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#include <interfaces/audio.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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enum PathStatus
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{
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PATH_CLOSED,
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PATH_OPEN,
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PATH_SUSPENDED
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};
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typedef struct
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{
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uint8_t source;
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uint8_t sink;
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uint8_t prio;
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uint8_t status;
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}
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pathInfo_t;
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typedef int32_t pathId;
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/**
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* Request to set up an audio path, returns an error if the path is already used
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* with an higher priority.
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*
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* @param source: identifier of the input audio peripheral.
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* @param sink: identifier of the output audio peripheral.
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* @param prio: priority of the requester.
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* @return a unique identifier of the opened path or -1 if path is already in use.
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*/
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pathId audioPath_request(enum AudioSource source, enum AudioSink sink,
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enum AudioPriority prio);
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/**
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* Get all the informations of an audio path.
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*
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* @param id: ID of the audio path.
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* @return audio path informations.
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*/
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pathInfo_t audioPath_getInfo(const pathId id);
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/**
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* Get the current status of an audio path.
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*
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* @param id: ID of the audio path.
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* @return status of the path queried.
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*/
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enum PathStatus audioPath_getStatus(const pathId id);
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/**
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* Release an audio path.
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*
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* @param id: identifier of the path.
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*/
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void audioPath_release(const pathId id);
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#ifdef __cplusplus
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}
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#endif
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#endif /* AUDIO_PATH_H */
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