播放、音量调节、声道控制（WAV）

daiyuancan

只有1个类（方法已写好，可直接调用） 1、SoundWAV.cpp #include ".\soundwav.h" SoundWAV::SoundWAV(void) { volume = -1000; pan = 0; } SoundWAV::~SoundWAV(void) { } void SoundWAV:oadWAV(HWND hWnd, const char* szSoundFileName) { result = DirectSoundCreate( NULL, &pDS, NULL ); if(result != DS_OK) MessageBox(hWnd,"建立 DirectSound 对象失败!","提示",MB_OK); result = pDS->SetCooperativeLevel( hWnd, DSSCL_PRIORITY ); if(result != DS_OK) MessageBox(hWnd,"设置协调层级失败!","提示",MB_OK); memset( &dsdesc,0, sizeof(dsdesc) ); dsdesc.dwSize = sizeof(dsdesc); dsdesc.dwFlags = DSBCAPS_PRIMARYBUFFER; dsdesc.dwBufferBytes = 0; dsdesc.lpwfxFormat = NULL; result = pDS->CreateSoundBuffer( &dsdesc, &pPBuf, NULL ); if(result != DS_OK) MessageBox(hWnd,"建立主缓冲区失败!","提示",MB_OK); memset( &pwfmt,0, sizeof(pwfmt) ); pwfmt.wFormatTag = WAVE_FORMAT_PCM; pwfmt.nChannels = 2; pwfmt.nSamplesPerSec = 44100; pwfmt.wBitsPerSample = 16; pwfmt.nBlockAlign = pwfmt.wBitsPerSample / 8 * pwfmt.nChannels; pwfmt.nAvgBytesPerSec = pwfmt.nSamplesPerSec * pwfmt.nBlockAlign; result = pPBuf->SetFormat(&pwfmt); if(result != DS_OK) MessageBox(hWnd,"设置播放格式失败!","提示",MB_OK); GetCurrentDirectory(MAX_PATH, strSoundPath); strcat(strSoundPath, "\\music\\"); strcat(strSoundPath, szSoundFileName); hmmio = mmioOpen(strSoundPath, NULL, MMIO_ALLOCBUF|MMIO_READ ); if(hmmio == NULL) MessageBox(hWnd,"文件不存在!","提示",MB_OK); ckRiff.fccType = mmioFOURCC('W', 'A', 'V', 'E'); mmresult = mmioDescend(hmmio,&ckRiff,NULL,MMIO_FINDRIFF); if(mmresult != MMSYSERR_NOERROR) MessageBox(hWnd,"文件格式错误!","提示",MB_OK); ckInfo.ckid = mmioFOURCC('f','m','t',' '); mmresult = mmioDescend(hmmio,&ckInfo,&ckRiff,MMIO_FINDCHUNK); if(mmresult != MMSYSERR_NOERROR) MessageBox(hWnd,"文件格式错误!","提示",MB_OK); if(mmioRead(hmmio,(HPSTR)&swfmt,sizeof(swfmt)) == -1) MessageBox(hWnd,"读取格式失败!","提示",MB_OK); mmresult = mmioAscend(hmmio,&ckInfo,0); ckInfo.ckid = mmioFOURCC('d','a','t','a'); mmresult = mmioDescend(hmmio,&ckInfo,&ckRiff,MMIO_FINDCHUNK); //搜寻区块 if(mmresult != MMSYSERR_NOERROR) MessageBox(hWnd,"文件格式错误!","提示",MB_OK); size = ckInfo.cksize; memset( &dsdesc,0,sizeof(dsdesc)); dsdesc.dwSize = sizeof(dsdesc); dsdesc.dwFlags = DSBCAPS_STATIC |DSBCAPS_CTRLPAN |DSBCAPS_CTRLVOLUME| DSBCAPS_GLOBALFOCUS; dsdesc.dwBufferBytes = size; dsdesc.lpwfxFormat = &swfmt; result = pDS->CreateSoundBuffer( &dsdesc, &pSBuf, NULL ); if(result != DS_OK) MessageBox(hWnd,"建立次缓冲区失败!","提示",MB_OK); result = pSBuf->Lock(0,size,&pAudio,&bytesAudio,NULL,NULL,NULL); if(result != DS_OK) MessageBox(hWnd,"锁定缓冲区失败!","提示",MB_OK); mmresult = mmioRead(hmmio,(HPSTR)pAudio,bytesAudio); if(mmresult == -1) MessageBox(hWnd,"读取声音文件失败!","提示",MB_OK); result = pSBuf->Unlock(pAudio,bytesAudio,NULL,NULL); if(result != DS_OK) MessageBox(hWnd,"解除锁定缓冲区失败!","提示",MB_OK); mmioClose(hmmio,0); } // 播放 void SoundWAV:lay() { pSBuf->Stop(); pSBuf->SetCurrentPosition(0); pSBuf->SetVolume(volume); pSBuf->SetPan(pan); pSBuf->Play(0,0,0); } // 停止 void SoundWAV::Stop() { pSBuf->Stop(); } // 循环 void SoundWAV::WAVLoop() { pSBuf->Stop(); pSBuf->SetCurrentPosition(0); pSBuf->SetVolume(volume); pSBuf->SetPan(pan); pSBuf->Play(0,0,1); } // 调大声音 void SoundWAV::WAVMAX() { if(volume<=0) volume+=200; pSBuf->SetVolume(volume); } // 调小声音 void SoundWAV::WAVMIX() { if(volume>=-2000) volume-=200; pSBuf->SetVolume(volume); } //左声道 void SoundWAV::WAVLEFT() { pSBuf->SetPan(-10000); } // 右声道 void SoundWAV::WAVRIGHT() { pSBuf->SetPan(10000); } // 双声道 void SoundWAV::WAVDOUBLE() { pSBuf->SetPan(0); } 2、soundwav.h #pragma once #include #include #pragma comment (lib,"dsound.lib") #pragma comment (lib,"strmiids.lib") class SoundWAV { private: LPDIRECTSOUND pDS; LPDIRECTSOUNDBUFFER pPBuf; LPDIRECTSOUNDBUFFER pSBuf; WAVEFORMATEX pwfmt; WAVEFORMATEX swfmt; DSBUFFERDESC dsdesc; MMCKINFO ckRiff; MMCKINFO ckInfo; MMRESULT mmresult; HMMIO hmmio; DWORD size; HRESULT result; LPVOID pAudio; DWORD bytesAudio; CHAR strSoundPath[MAX_PATH]; int volume; int pan; public: SoundWAV(void); ~SoundWAV(void); void LoadWAV(HWND hWnd, const char* szSoundFileName); void Play(); // 播放 void Stop(); // 停止 void WAVLoop(); // 循环 void WAVMAX(); // 调大声音 void WAVMIX(); // 调小声音 void WAVLEFT(); // 左声道 void WAVRIGHT(); // 右声道 void WAVDOUBLE();// 双声道 };

daiyuancan

strcat(strSoundPath, \\music\\); //“ \\music\\”中的 music是文件夹。

鼯鼠

哈哈～～好东西！支持！