一种简单的用c++实现的录音程序

// ******************* FileName: WinMain.cpp ********************** // 该源程序需要加入到 VC6 的 Win32 Application 的 empty Project 中 // 请包含我自定义的调试类，见 #include "RunTimeLog.cpp" // 对于工程的 Link 选项，至少要包含以下库: //msvcrt.lib kernel32.lib user32.lib Winmm.lib #define WIN32_LEAN_AND_MEAN // Say No to MFC !! #include <windows.h> #include <Mmsystem.h> char lpTemp[256]=""; void log(char *tip); DWORD FCC(LPSTR lpStr) { DWORD Number = lpStr[0] + lpStr[1] *0x100 + lpStr[2] *0x10000 + lpStr[3] *0x1000000 ; return Number; } int main(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow) { CreateMutex( NULL, false, "MyMutex"); if (GetLastError() == ERROR_ALREADY_EXISTS) { log("Exists and Exit"); ExitProcess( NULL); } log("Program Start."); DWORD datasize = 48000; // 最常用法 WAVEFORMATEX waveformat; waveformat.wFormatTag=WAVE_FORMAT_PCM; waveformat.nChannels=1; waveformat.nSamplesPerSec=8000; waveformat.nAvgBytesPerSec=8000; waveformat.nBlockAlign=1; waveformat.wBitsPerSample=8; //指定录音格式 waveformat.cbSize=0; wsprintf(lpTemp,"WAVEFORMATEX size = %lu", sizeof(WAVEFORMATEX) ); log(lpTemp); HWAVEIN m_hWaveIn; if ( waveInGetNumDevs()) //检查是否有通道可供使用 { log("有可以使用的 WaveIn 通道"); } else { log("没有可以使用的 waveIn 通道"); } int res=waveInOpen(&m_hWaveIn,WAVE_MAPPER, &waveformat, (DWORD)NULL,0L,CALLBACK_WINDOW); //打开录音设备 if ( res == MMSYSERR_NOERROR ) { log("打开 waveIn 成功"); // 验证创建是否成功 } else { wsprintf(lpTemp, "打开 waveIn 通道失败，Error_Code = 0x%x", res ); log(lpTemp); } WAVEHDR m_pWaveHdr; m_pWaveHdr.lpData = (char *)GlobalLock( GlobalAlloc(GMEM_MOVEABLE|GMEM_SHARE, datasize) ); memset(m_pWaveHdr.lpData, 0, datasize ); m_pWaveHdr.dwBufferLength = datasize; m_pWaveHdr.dwBytesRecorded = 0; m_pWaveHdr.dwUser = 0; m_pWaveHdr.dwFlags = 0; m_pWaveHdr.dwLoops = 0; wsprintf( lpTemp, "WAVEHDR size = %lu", sizeof(WAVEHDR) ); log(lpTemp); int resPrepare = waveInPrepareHeader( m_hWaveIn, &m_pWaveHdr, sizeof(WAVEHDR) ); //准备内存块录音 if ( resPrepare == MMSYSERR_NOERROR) { log("准备录音用头文件成功"); } else { wsprintf(lpTemp, "不能开辟录音头文件，Error_Code = 0x%03X", resPrepare ); log(lpTemp); } // End of 验证开辟缓冲 resPrepare = waveInAddBuffer( m_hWaveIn, &m_pWaveHdr, sizeof(WAVEHDR) ); if ( resPrepare == MMSYSERR_NOERROR) { log("准备录音用内存成功"); } else { wsprintf(lpTemp, "不能开辟录音用缓冲，Error_Code = 0x%03X", resPrepare ); log(lpTemp); } // End of 验证开辟缓冲 if (! waveInStart(m_hWaveIn) ) { log("开始录音"); Sleep(32000); } else { log("开始录音失败"); } MMTIME mmt; mmt.wType = TIME_BYTES; if ( waveInGetPosition(m_hWaveIn, &mmt, sizeof(MMTIME)) ) { log("不能取得音频长度"); } else { //log( "取得现在音频位置 =", mmt.u.cb ); } if (mmt.wType == TIME_BYTES) { log("得到的 TIME_BYTES 格式的音频长度"); } else { log("指定的 TIME_BYTES 格式音频长度不支持"); } // if (! waveInStop(m_hWaveIn) ) log.write("停止录音"); else log.write("停止录音失败"); if (! waveInReset(m_hWaveIn) ) { log("重置内存区成功"); } else { log("重置内存区失败"); } m_pWaveHdr.dwBytesRecorded = mmt.u.cb; DWORD NumToWrite=0; DWORD dwNumber = 0; HANDLE FileHandle = CreateFile( "myTest.wav", GENERIC_WRITE, FILE_SHARE_READ, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); // memset(m_pWaveHdr.lpData, 0, datasize); dwNumber = FCC("RIFF"); WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL); dwNumber = m_pWaveHdr.dwBytesRecorded + 18 + 20; WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL); dwNumber = FCC("WAVE"); WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL); dwNumber = FCC("fmt "); WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL); dwNumber = 18L; WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL); WriteFile(FileHandle, &waveformat, sizeof(WAVEFORMATEX), &NumToWrite, NULL); dwNumber = FCC("data"); WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL); dwNumber = m_pWaveHdr.dwBytesRecorded; WriteFile(FileHandle, &dwNumber, 4, &NumToWrite, NULL); WriteFile(FileHandle, m_pWaveHdr.lpData, m_pWaveHdr.dwBytesRecorded, &NumToWrite, NULL); SetEndOfFile(FileHandle); CloseHandle( FileHandle ); FileHandle = INVALID_HANDLE_VALUE; // 收尾关闭句柄 log("应该已生成 myTest.wav 文件"); if ( waveInUnprepareHeader(m_hWaveIn, &m_pWaveHdr, sizeof(WAVEHDR)) ) { log("Un_Prepare Header 失败"); } else { log("Un_Prepare Header 成功"); } if ( GlobalFree(GlobalHandle( m_pWaveHdr.lpData )) ) { log("Global Free 失败"); } else { log("Global Free 成功"); } if (res == MMSYSERR_NOERROR ) //关闭录音设备 { if (waveInClose(m_hWaveIn)==MMSYSERR_NOERROR) { log("正常关闭录音设备"); } else { log("非正常关闭录音设备"); ExitProcess(0); } } return 0; } void log(char *tip) { MessageBox(NULL,tip,"",0); return; }