实时音频播放C ++ WaveIn& waveout的 [英] Realtime audio playback C++ WaveIn & WaveOut

问题描述

嗨！



我是VC ++的初学者，我有一点（对我来说是一个很大的）实时音频播放的问题。我使用以下代码：

Hi!

I''m a starter in VC++, and I have a little (for me is a big) problem with real time audio playback. I Use the following code:

#include <windows.h>
#include <mmsystem.h>
#include <stdio.h>
#define SOUNDBUFF 65536;
WAVEFORMATEX wf;
WAVEHDR whdr;
HWAVEIN hWaveIn;
HWAVEOUT hWaveOut;
LPSTR lpData;
int main(void)
{
char clpData[65536];
lpData=clpData;
wf.wFormatTag=WAVE_FORMAT_PCM;
wf.nChannels=1;
wf.nSamplesPerSec=8000;
wf.nAvgBytesPerSec=wf.nSamplesPerSec;
wf.nBlockAlign=1;
wf.wBitsPerSample=8;
wf.cbSize=0;
waveInOpen((LPHWAVEIN)&hWaveIn,WAVE_MAPPER,&wf,0,0,CALLBACK_NULL);

whdr.lpData = lpData;
whdr.dwBufferLength = SOUNDBUFF;
whdr.dwBytesRecorded = 0;
whdr.dwFlags = 0L;
whdr.dwLoops = 0L;
waveInPrepareHeader(hWaveIn,&whdr,sizeof(whdr));
waveInAddBuffer(hWaveIn,&whdr,sizeof(whdr));
waveInStart(hWaveIn);
int n=0;
do {
} while (!(whdr.dwFlags & WHDR_DONE));
waveInUnprepareHeader((HWAVEIN)hWaveOut,&whdr,sizeof(whdr));
waveInClose(hWaveIn);
waveOutOpen(&hWaveOut,WAVE_MAPPER,&wf,0,0,CALLBACK_NULL);
waveOutPrepareHeader(hWaveOut,&whdr,sizeof(whdr));
waveOutWrite(hWaveOut,&whdr,sizeof(whdr));
n=0;
do {
} while (!(whdr.dwFlags & WHDR_DONE));
waveOutUnprepareHeader(hWaveOut,&whdr,sizeof(whdr));
waveOutClose(hWaveOut);
return 0;
}

它工作正常，但我会听到实时，什么是输入缓冲，并且不断。我不知道我怎么能做到，我不明白，我怎么能在写作时读取缓冲区。请帮助，因为我在一周前探测它并没有结果。



感谢大家！

It''s work fine, but I would hear real time, what is input buffer, and continuously. I haven''t idea how can i make it, i don''t understand, how can i read a buffer when is under writing. Please help, cause I probe it a week ago and no results.

Thanks for everyone!

推荐答案

如果你是C ++的初学者，你应该学习C ++并没有迷失在不同窗口API的变幻莫测中。



我真的不明白你想要问什么，所以。你想让它实时工作，它不是吗？

If you''re a beginner in C++, you should learn C++ and not lose yourself in the vagaries of different windows APIs.

I can''t really understand what you''re trying to ask, tho. You want it to work in real time and it doesn''t ?

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