51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
/*
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* File : audio_device.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2017, RT-Thread Development Team
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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 2 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Change Logs:
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* Date Author Notes
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* 2018-05-26 RT-Thread the first version
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*/
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#ifndef AUDIO_DEVICE_H__
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#define AUDIO_DEVICE_H__
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enum AUDIO_DEVICE_STATE
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{
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AUDIO_DEVICE_IDLE,
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AUDIO_DEVICE_PLAYBACK,
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AUDIO_DEVICE_CLOSE,
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};
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void *audio_device_get_buffer(int *bufsz);
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void audio_device_put_buffer(void *ptr);
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void audio_device_write(void *buffer, int size);
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int audio_device_init(void);
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void audio_device_close(void);
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void audio_device_open(void);
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int audio_device_set_evt_handler(void (*handler)(void *parameter, int state), void *parameter);
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void audio_device_set_rate(int sample_rate);
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void audio_device_set_volume(int volume);
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void audio_device_wait_free(void);
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#endif |