www.pudn.com > dllDSPlayer1.rar > DSPlayer.h

// DSPlayer.h: interface for the CDSPlayer class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_DSPLAYER_H__E7C4CC7A_016F_48F9_80A1_1BA32303D7B5__INCLUDED_) 
#define AFX_DSPLAYER_H__E7C4CC7A_016F_48F9_80A1_1BA32303D7B5__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
/**************************************************************************************************************** 
		投稿说明： 
****************************************************************************************************************/ 
#define NOTE_CDSPlayer \ 
"\r\n\ 
	◆◆◆ 《DirectShow多声卡播放器》◆◆◆\r\n\ 
	一个用DirectShow开发的音频播放程序，支持多个声卡，可以任意指定播放声卡，可以播放mp3,wav,cda,avi,asf,wmv,mpg等所有\ 
windows支持的多媒体视频、音频文件，还可以直接播放CD。我已经封装好一个类，还有测试程序，源代码您可以直接使用。\r\n\ 
	我刚接手做这个多声卡播放程序的时候也毫无头绪，我以前只用过wavOpenXXX()和mciSendXXX()系列API来播放音频\ 
文件，但是这些方法根本不支持多声卡，播放时的声音只能从系统默认的声卡中发出来，后来想到一个办法，在程序启动时将系统\ 
默认声卡改成我要播放的声卡，程序退出时再还原，可这样改来改去总会有问题。没办法，就到网上到处找资料，希望能得到指点，\ 
终于皇天不负有心人，我终于找到一个《多声卡SDK开发包》控件，我满心高兴地下载安装并试用，原来这是一个需要注册的控件，真是\ 
有违开源的思想啊，不就是一个多声卡播放程序，犯得着用来赚钱吗？你不开源也就得了，还弄个需要注册，不注册还不能用！\ 
	实在没辙那就自己写好了。\r\n\ 
\r\n\ 
	◆◆◆ 作者 ◆◆◆\r\n\ 
    谢红伟 · chrys · chrys@163.com · http://ndxz.126.com\r\n\ 
\r\n\ 
	◆◆◆ 日期 ◆◆◆\r\n\ 
    2006-07-05 15:49:28" 
 
// Filter graph notification to the specified window 
#define WM_GRAPHNOTIFY  (WM_USER+300) 
#ifdef _DEBUG 
#define _OPENTYPE "Media Files|*.mp3;*.wav;*.wma;*.cda;*.avi;*.asf;*.wmv;*.rmvb;*.rm;*.dat;*.mpg;*.mpeg|" 
#else 
#define _OPENTYPE "Music Files(*.mp3;*.wav;*.wma;*.cda)|*.mp3;*.wav;*.wma;*.cda|Video Files(*.avi;*.asf;*.wmv;*.rmvb;*.rm)|*.avi;*.asf;*.wmv;*.rmvb;*.rm|Mpeg Video Files(*.dat;*.mpg;*.mpeg)|*.dat;*.mpg;*.mpeg;*.mpe|All Files(*.*)|*.*|" 
#endif 
#define DRIVER_ROOT_LENGTH 2 
 
class __declspec( dllexport ) CDSPlayer   
{ 
private: 
	IGraphBuilder *     mGraph;   
	IMediaControl *		mMediaControl; 
	IMediaEventEx *		mEvent; 
	IBasicVideo *		mBasicVideo; 
	IBasicAudio *		mBasicAudio; 
	IVideoWindow  *		mVideoWindow; 
	IMediaSeeking *		mSeeking; 
	IBaseFilter *		mAudioFilter; 
	ICreateDevEnum *	m_pSysDevEnum; 
 
	DWORD				mObjectTableEntry; 
	CStringArray		m_StrAry_AudioDevice; 
	CPtrArray			m_PtrAry_Filter_AudioDevice; 
	CString				m_csMediaFileName; 
	CString				m_csAudioDeviceName; 
 
public: 
	CDSPlayer(); 
	virtual ~CDSPlayer(); 
	CString GetAudioDeviceName() 
	{ 
		return m_csAudioDeviceName; 
	} 
	CString GetMediaFileName() 
	{ 
		return m_csMediaFileName; 
	} 
	BOOL Delete_DefaultDirectSoundDevice(); 
 
public: 
	HWND m_hWndNotify, m_hWndDisplay; 
	BOOL SetAudioDevice ( CString strContainText, BOOL bInclude=TRUE, CString *pcsAudioDeviceFullName=NULL ); 
	int FindAudioDeivceIDByName ( CString strContainText, BOOL bInclude, OUT CString *pcsAudioDeviceFullName=NULL); 
	void GetAudioDeviceList ( OUT CStringArray &StrAry_AudioDevice ); 
	BOOL IsInitedOK(); 
	virtual BOOL Create(void); 
	virtual void Release(void); 
	virtual BOOL Attach(IGraphBuilder * inGraphBuilder); 
 
	IGraphBuilder * GetGraph(void); // Not outstanding reference count 
	IMediaEventEx * GetEventHandle(void); 
 
	BOOL ConnectFilters(IPin * inOutputPin, IPin * inInputPin, const AM_MEDIA_TYPE * inMediaType = 0); 
	void DisconnectFilters(IPin * inOutputPin); 
 
	BOOL SetDisplayWindow(HWND inWindow); 
	BOOL SetNotifyWindow(HWND inWindow); 
	BOOL ResizeVideoWindow(long inLeft, long inTop, long inWidth, long inHeight); 
	void HandleEvent(WPARAM inWParam, LPARAM inLParam); 
 
	BOOL Run(void);        // Control filter graph 
	BOOL Stop(void); 
	BOOL Pause(void); 
	BOOL IsRunning(void);  // Filter graph status 
	BOOL IsStopped(void); 
	BOOL IsPaused(void); 
 
	BOOL SetFullScreen(BOOL inEnabled); 
	BOOL GetFullScreen(void); 
 
	// IMediaSeeking 
	BOOL GetCurrentPosition(double * outPosition); 
	BOOL GetStopPosition(double * outPosition); 
	BOOL SetCurrentPosition(double inPosition); 
	BOOL SetStartStopPosition(double inStart, double inStop); 
	BOOL GetDuration(double * outDuration); 
	BOOL SetPlaybackRate(double inRate); 
 
	// Attention: range from -10000 to 0, and 0 is FULL_VOLUME. 
	BOOL SetAudioVolume(long inVolume); 
	long GetAudioVolume(void); 
	// Attention: range from -10000(left) to 10000(right), and 0 is both. 
	BOOL SetAudioBalance(long inBalance); 
	long GetAudioBalance(void); 
 
	BOOL RenderFile(const char * inFile); 
	BOOL SnapshotBitmap(const char * outFile); 
 
private: 
	BOOL EnumAudioDevice (); 
	IBaseFilter* FindFilters(const char *szFilterName); 
	void AddToObjectTable(void) ; 
	void RemoveFromObjectTable(void); 
	 
	BOOL QueryInterfaces(void); 
}; 
 
#endif // !defined(AFX_DSPLAYER_H__E7C4CC7A_016F_48F9_80A1_1BA32303D7B5__INCLUDED_)