* apps/include/audioutils/nxaudio.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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 __APPS_INCLUDE_AUDIOUTILS_NXAUDIO_H
#define __APPS_INCLUDE_AUDIOUTILS_NXAUDIO_H
* Included Files
****************************************************************************/
#include <stdint.h>
#include <mqueue.h>
#include <nuttx/audio/audio.h>
* Public Data Types
****************************************************************************/
struct nxaudio_s
{
int fd;
int abufnum;
FAR struct ap_buffer_s **abufs;
mqd_t mq;
int chnum;
};
struct nxaudio_callbacks_s
{
void CODE (*dequeue)(unsigned long arg, FAR struct ap_buffer_s *apb);
void CODE (*complete)(unsigned long arg);
void CODE (*user)(unsigned long arg, FAR struct audio_msg_s *msg,
FAR bool *running);
};
* Public Function Prototypes
****************************************************************************/
#ifdef __cplusplus
extern "C"
{
#endif
int init_nxaudio(FAR struct nxaudio_s *nxaudio,
int fs, int bps, int chnum);
int init_nxaudio_devname(FAR struct nxaudio_s *nxaudio,
int fs, int bps, int chnum,
const char *devname, const char *mqname);
void fin_nxaudio(FAR struct nxaudio_s *nxaudio);
int nxaudio_enqbuffer(FAR struct nxaudio_s *nxaudio,
FAR struct ap_buffer_s *apb);
int nxaudio_pause(FAR struct nxaudio_s *nxaudio);
int nxaudio_resume(FAR struct nxaudio_s *nxaudio);
int nxaudio_setvolume(FAR struct nxaudio_s *nxaudio, uint16_t vol);
int nxaudio_start(FAR struct nxaudio_s *nxaudio);
int nxaudio_msgloop(FAR struct nxaudio_s *nxaudio,
FAR struct nxaudio_callbacks_s *cbs, unsigned long arg);
int nxaudio_stop(FAR struct nxaudio_s *nxaudio);
#ifdef __cplusplus
}
#endif
#endif