利用windows api采集麦克风音频并播放

利用windows api采集麦克风音频并播放。

#include “stdafx.h“
#include    
#include    
#include    
#pragma comment（lib “winmm.lib“）   

#define BUFFER_SIZE （44100*16*2/8*5）    // 录制声音长度  
#define FRAGMENT_SIZE 1024              // 缓存区大小  
#define FRAGMENT_NUM 4                  // 缓存区个数  

static unsigned char buffer[BUFFER_SIZE] = { 0 };
static int buf_count = 0;

// 函数定义   
void CALLBACK waveInProc（HWAVEIN hwi
	UINT uMsg
	DWORD_PTR dwInstance
	DWORD_PTR dwParam1
	DWORD_PTR dwParam2）;
void CALLBACK waveOutProc（HWAVEOUT hwo
	UINT uMsg
	DWORD_PTR dwInstance
	DWORD_PTR dwParam1
	DWORD_PTR dwParam2）;

// 入口   
int main（）
{
	/* 录音 */

	// Device   
	int nReturn = waveInGetNumDevs（）;
	printf（“输入设备数目：%d\n“ nReturn）;
	for （int i = 0; i	{
		WAVEINCAPS wic;
		waveInGetDevCaps（i &wic sizeof（WAVEINCAPS））;
		printf（“#%d\t设备名：%s\n“ i wic.szPname）;
	}

	// open   
	HWAVEIN hWaveIn;
	WAVEFORMATEX wavform;
	wavform.wFormatTag = WAVE_FORMAT_PCM;
	wavform.nChannels = 2;
	wavform.nSamplesPerSec = 44100;
	wavform.nAvgBytesPerSec = 44100 * 16 * 2 / 8;
	wavform.nBlockAlign = 4;
	wavform.wBitsPerSample = 16;
	wavform.cbSize = 0;

	waveInOpen（&hWaveIn WAVE_MAPPER &wavform （DWORD_PTR）waveInProc 0 CALLBACK_FUNCTION）;

	WAVEINCAPS wic;
	waveInGetDevCaps（（UINT_PTR）hWaveIn &wic sizeof（WAVEINCAPS））;
	printf（“打开的输入设备：%s\n“ wic.szPname）;

	// prepare buffer   
	static WAVEHDR wh[FRAGMENT_NUM];
	for （int i = 0; i	{
		wh[i].lpData = new char[FRAGMENT_SIZE];
		wh[i].dwBufferLength = FRAGMENT_SIZE;
		wh[i].dwBytesRecorded = 0;
		wh[i].dwUser = NULL;
		wh[i].dwFlags = 0;
		wh[i].dwLoops = 1;
		wh[i].lpNext = NULL;
		wh[i].reserved = 0;

		waveInPrepareHeader（hWaveIn &wh[i] sizeof（WAVEHDR））;
		waveInAddBuffer（hWaveIn &wh[i] sizeof（WAVEHDR））;
	}

	// record   
	printf（“Start to Record...\n“）;

	buf_count = 0;
	waveInStart（hWaveIn）;

	while （buf_count < BUFFER_SIZE）
	{
		Sleep（1）;
	}

	printf（“Record Over!\n\n“）;

	// clean   
	waveInStop（hWaveIn）;
	waveInReset（hWaveIn）;
	for （int i = 0; i	{
		waveInUnprepareHeader（hWaveIn &wh[i] sizeof（WAVEHDR））;
		delete wh[i].lpData;
	}
	waveInClose（hWaveIn）;

	system（“pause“）;
	printf（“\n“）;

	/* 放音 */

	// Device   
	nReturn = waveOutGetNumDevs（）;
	printf（“\n输出设备数目：%d\n“ nReturn）;
	for （int i = 0; i	{
		WAVEOUTCAPS woc;
		waveOutGetDevCaps（i &woc sizeof（WAVEOUTCAPS））;
		printf（“#%d\t设备名：%s\n“ i wic.szPname）;
	}

	// open   
	HWAVEOUT hWaveOut;
	waveOutOpen（&hWaveOut WAVE_MAPPER &wavform （DWORD_PTR）waveOutProc 0 CALLBACK_FUNCTION）;

	WAVEOUTCAPS woc;
	waveOutGetDevCaps（（UINT_PTR）hWaveOut &woc sizeof（WAVEOUTCAPS））;
	printf（“打开的输出设备：%s\n“ wic.szPname）;

	// prepare buffer   
	WAVEHDR wavhdr;
	wavhdr.lpData = （LPSTR）buffer;
	wavhdr.dwBufferLength = BUFFER_SIZE;
	wavhdr.dwFlags = 0;
	wavhdr.dwLoops = 0;

	waveOutPrepareHeader（

 属性            大小     日期    时间   名称
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     文件       4139  2016-09-01 10:28  AudioCapture-WindowsApi\AudioCapture-WindowsApi\AudioCapture-WindowsApi.cpp

     文件       4566  2016-09-01 10:31  AudioCapture-WindowsApi\AudioCapture-WindowsApi\AudioCapture-WindowsApi.vcxproj

     文件       1330  2016-09-01 10:24  AudioCapture-WindowsApi\AudioCapture-WindowsApi\AudioCapture-WindowsApi.vcxproj.filters

     文件       1965  2016-09-05 18:34  AudioCapture-WindowsApi\AudioCapture-WindowsApi\Debug\AudioCapture-WindowsApi.Build.CppClean.log

     文件         94  2016-09-05 18:34  AudioCapture-WindowsApi\AudioCapture-WindowsApi\Debug\AudioCapture-WindowsApi.log

     文件       1622  2016-09-01 10:24  AudioCapture-WindowsApi\AudioCapture-WindowsApi\ReadMe.txt

     文件        229  2016-09-01 10:24  AudioCapture-WindowsApi\AudioCapture-WindowsApi\stdafx.cpp

     文件        234  2016-09-01 10:24  AudioCapture-WindowsApi\AudioCapture-WindowsApi\stdafx.h

     文件        236  2016-09-01 10:24  AudioCapture-WindowsApi\AudioCapture-WindowsApi\targetver.h

     文件       1015  2016-09-01 10:24  AudioCapture-WindowsApi\AudioCapture-WindowsApi.sln

    ..A..H.     23040  2016-09-05 18:34  AudioCapture-WindowsApi\AudioCapture-WindowsApi.v12.suo

     目录          0  2016-09-05 18:34  AudioCapture-WindowsApi\AudioCapture-WindowsApi\Debug\AudioCap.7B50A768.tlog

     目录          0  2016-09-05 18:34  AudioCapture-WindowsApi\AudioCapture-WindowsApi\Debug

     目录          0  2016-09-01 10:28  AudioCapture-WindowsApi\AudioCapture-WindowsApi

     目录          0  2016-09-05 18:34  AudioCapture-WindowsApi\Debug

     目录          0  2016-09-05 18:34  AudioCapture-WindowsApi

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