如何在程序中实现MP3音乐文件的播放呀?急!

Question

如何在程序中实现MP3音乐文件的播放呀?急!

Answer 1

你可以用VC的WINDOWS MEDIA PLAYER控件!

Answer 2

use dshow!
IGraphBuilder * pGraph;
IMediaControl *pMediaControl;
IMediaPosition *pMediaPos;
IMediaEvent   *pEvent;
IVideoWindow    *pVW = NULL;
    REFTIME length;
WCHAR  path[MAX_PATH]; TCHAR filepath[MAX_PATH];
strcpy(filepath,szFilename);
    MultiByteToWideChar(CP_ACP, 0, filepath, -1, path, MAX_PATH); CoInitialize(NULL);
HRESULT hr = CoCreateInstance(CLSID_FilterGraph,NULL,CLSCTX_INPROC_SERVER,IID_IGraphBuilder,(void **)&pGraph);

if(FAILED(hr))
{
AfxMessageBox("DirectShow initialize failed!");
return;
}
else 
{
pGraph->QueryInterface(IID_IVideoWindow, (void **)&pVW);

pGraph->QueryInterface(IID_IMediaControl, (void **)&pMediaControl);

pGraph->QueryInterface(IID_IMediaEvent, (void **)&pEvent);

pGraph->QueryInterface(IID_IMediaPosition,(void **)&pMediaPos);    pGraph->RenderFile(path, NULL);

pMediaPos->get_Duration(&length); pVW->put_Owner((OAHWND)m_hWnd);
hr = pVW->put_MessageDrain((OAHWND)m_hWnd);

pVW->put_WindowStyle(WS_CHILD|WS_CLIPSIBLINGS); pVW->SetWindowPosition(0,0,472,320); pMediaControl->Run();

}
pGraph->Release();
         CoUninitialize();

Answer 3

直接用Media Play Control控件,挺方便的,我就是用它
m_media.SetFileName("C:\\01.mp3");
m_media.Start();

Answer 4

//-----------------------------------------------------------------------------
// Purpose: Play Mp3 File
// Input  : sFileName - Mp3 File Name
// Output : void WINAPI
//-----------------------------------------------------------------------------
void WINAPI PlayMp3File(CString sFileName)
{
MCI_OPEN_PARMS mciopenparms;
MCI_PLAY_PARMS mciplayparms;
mciopenparms.lpstrElementName= sFileName;
mciopenparms.lpstrDeviceType=NULL;
mciopenparms.dwCallback=NULL;
MCIERROR e = mciSendCommand(0,MCI_OPEN,MCI_DEVTYPE_WAVEFORM_AUDIO,(DWORD)(LPVOID)&mciopenparms);
DWORD m_count=mciopenparms.wDeviceID;
mciplayparms.dwCallback= NULL;//(DWORD)GetSafeHwnd();
DWORD cdlen=getinfo(MCI_STATUS_LENGTH,m_count);                                                                                                                                                                                                                                         
DWORD cdto=MCI_MAKE_HMS(MCI_HMS_HOUR(cdlen),MCI_HMS_MINUTE(cdlen),MCI_HMS_SECOND(cdlen));  
mciplayparms.dwFrom=0;
mciplayparms.dwTo=cdto;
e = mciSendCommand(mciopenparms.wDeviceID,MCI_PLAY,MCI_TO|MCI_FROM,(DWORD)(LPVOID)& mciplayparms);     

}
//-----------------------------------------------------------------------------
// Purpose: Get The Play Item's Status
//-----------------------------------------------------------------------------
DWORD WINAPI getinfo(DWORD item,DWORD& m_count)
{
MCI_STATUS_PARMS mcistatusparms;
mcistatusparms.dwCallback=NULL;//(DWORD)GetSafeHwnd();
mcistatusparms.dwItem=item;
mcistatusparms.dwReturn=0;
mciSendCommand(m_count,MCI_STATUS,MCI_STATUS_ITEM,(DWORD)&mcistatusparms);
return mcistatusparms.dwReturn;
}但是这样做只能处理mp3后缀的文件，否则不行（就算文件内容为mp3,但是后缀不对的话也不行）