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/*
* Copyright (C) 2015, 2016 "IoT.bzh"
* Author "Manuel Bachmann"
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef AUDIO_ALSA_H
#define AUDIO_ALSA_H
#include <pthread.h>
#include <alsa/asoundlib.h>
#include "audio-api.h"
#define AUDIO_BUFFER "/tmp/audio_buf"
typedef struct dev_ctx_alsa dev_ctx_alsa_T;
struct dev_ctx_alsa {
char *name;
snd_pcm_t *dev;
snd_pcm_hw_params_t *params;
snd_mixer_elem_t *mixer_elm;
snd_mixer_elem_t *mixer_elm_m;
long vol_max;
long vol;
pthread_t thr;
unsigned char thr_should_run;
unsigned char thr_finished;
};
unsigned char _alsa_init (const char *, audioCtxHandleT *);
void _alsa_free (const char *);
void _alsa_play (int);
void _alsa_stop (int);
unsigned int _alsa_get_volume (int, unsigned int);
void _alsa_set_volume (int, unsigned int, unsigned int);
void _alsa_set_volume_all (int, unsigned int);
unsigned char _alsa_get_mute (int);
void _alsa_set_mute (int, unsigned char);
void _alsa_set_channels (int, unsigned int);
void* _alsa_play_thread_fn (void *);
#endif /* AUDIO_ALSA_H */
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