www.pudn.com > MyPlayerbylqh.rar > AudioRenderer.h

/************************************************************************************** 
 *                                                                                    * 
 *                                                                                    * 
 **************************************************************************************/ 
 
#ifndef AUDIO_RENDERER_H 
#define AUDIO_RENDERER_H 
 
#include "MediaClasses.h" 
#include "DebugFile.h" 
 
 
/* 
 * 包括直接音频 
 */ 
 
#include  
#include  
 
/* 
 * Audio Renderer Class 
 * 
 *  ——某一刻只有一个可用 
 * 
 */ 
 
class MediaAudioRenderer : public MediaItemAudioRenderer { 
 
public: 
 
	LPDIRECTSOUND       lpDirectSound; 
	LPDIRECTSOUNDBUFFER lpBuffer; 
	WAVEFORMATEX       *ourFormat; 
 
    DWORD               dwBufferSize;      
    DWORD               dwNextWriteOffset;  
    DWORD               dwProgress; 
	DWORD               dwLastPlayPos; 
	 
	unsigned long       dwPlayed; 
	 
	HANDLE              audioThread; 
	UINT                uTimerID; 
	LONG                lInTimer; 
	DWORD               id; 
	 
	MediaAudioCallback  callback; 
	void               *lpData; 
	int                 paused; 
 
	/* 
	 * 方法 
	 * 
	 */ 
 
	MediaAudioRenderer(); 
	~MediaAudioRenderer(); 
 
	/* 
	 * 媒体项方法 
	 */ 
 
	media_type_t  GetType(); 
	char         *GetName(); 
	 
	MP_RESULT     Connect(MediaItem *item); 
	MP_RESULT     ReleaseConnections(); 
 
	DWORD         GetCaps(); 
	MP_RESULT     Configure(HINSTANCE hInstance, HWND hwnd); 
 
	/* 
	 * 音频补偿方法 
	 */ 
 
	MP_RESULT     Open(HWND hwnd, WAVEFORMATEX *inFormat); 
 
	MP_RESULT     SetCallback(void *lpData, MediaAudioCallback callback); 
	MP_RESULT     SetVolume(unsigned int volume); 
 
	unsigned long GetAudioTime(); 
	MP_RESULT     Bufferize(); 
 
	MP_RESULT     Start(); 
	MP_RESULT     Pause(); 
	MP_RESULT     Stop(); 
 
	MP_RESULT     Close(); 
}; 
 
#endif