如果是Android 平台可以使用ndk下的opensles进行采集，如果是Linux使用alsa 通用api,本文只贴openeles

audioReader.h

/*
 * Copyright 2015 The Android Open Source Project
 *
 * 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 NATIVE_AUDIO_AUDIO_RECORDER_H
#define NATIVE_AUDIO_AUDIO_RECORDER_H
#include <sys/types.h>
#include <SLES/OpenSLES.h>
#include <SLES/OpenSLES_Android.h>
//#include "DataManager.h"
//#define MAXAU