www.pudn.com > AVChat0926.rar > GlobalDefs.h

// 
// GlobalDefs.h 
// 
 
#ifndef __H_GlobalDefs__ 
#define __H_GlobalDefs__ 
 
//----------------------------------------------------------------------------- 
// Miscellaneous helper functions 
//----------------------------------------------------------------------------- 
#define SAFE_DELETE(p)       { if(p) { delete (p);     (p)=NULL; } } 
#define SAFE_DELETE_ARRAY(p) { if(p) { delete[] (p);   (p)=NULL; } } 
#define SAFE_RELEASE(p)      { if(p) { (p)->Release(); (p)=NULL; } } 
 
// Attention: we place TCP listening on the client 
#define SERVER_UDP_PORT		10096		//UDP command communication for sever 
#define CLIENT_UDP_PORT		10098		//UDP command communication for client 
#define AUDIO_UDP_PORT      10103		//多播时双方监听端口都是一样的!s 
#define VIDEO_UDP_PORT		10104 
 
// Role definitions 
typedef enum  
{ 
	SERVER = 0,  
	CLIENT 
} ROLE; 
 
// Device types 
typedef enum 
{ 
	DT_DV = 0, 
	DT_USB_Camera, 
	DT_Audio_Capture, 
	DT_Unknown 
} Device_Type; 
 
// How devices config to the peer PCs 
typedef enum  
{ 
	Local_Has_Video  = 1,  
	Local_Has_Audio  = 2, 
	Remote_Has_Video = 4, 
	Remote_Has_Audio = 8 
} Device_Config; 
 
const long Local_Device_Mask	= 0x03; 
const long Remote_Device_Mask	= 0x0c; 
 
// Preferred capture size 
const long Preferred_Width		= 320; 
const long Preferred_Height		= 240; 
 
// TCP stream header 
struct Pack_Header 
{ 
	long pack_type; 
	long pack_size; 
 
	void my_hton(void)  
	{ 
		pack_type		= htonl(pack_type); 
		pack_size		= htonl(pack_size); 
	}; 
 
	void my_ntoh(void)  
	{ 
		pack_type		= ntohl(pack_type); 
		pack_size		= ntohl(pack_size); 
	}; 
}; 
 
// TCP pack types 
const long PT_AudioMediaType	= 10001; 
const long PT_VideoMediaType	= 10002; 
const long PT_Payload			= 10003; 
  
// Messages 
const long msg_FilterGraphError		= 'avct' + 1; 
const long msg_MediaTypeReceived	= 'avct' + 2; 
const long msg_TCPSocketAccepted	= 'avct' + 3; 
const long msg_UDPCommandReceived	= 'avct' + 4; 
const long msg_ModifyFilterGraph	= 'avct' + 5; 
 
// Let the main thread modify filter graph 
#define WM_ModifyFilterGraph		(WM_USER+123) 
 
// UDP command defines 
const long MAX_COMMAND_SIZE			= 100; 
const long cmd_ClientCalling		= 'avct' + 100; 
const long cmd_DeviceConfig			= 'avct' + 101; 
const long cmd_BuildFilterGraph		= 'avct' + 102; 
const long cmd_DisconnectRequest	= 'avct' + 103; 
const long cmd_UDPSocketAccepted    = 'avct' + 104; 
// UDP command pack 
struct UDP_Pack 
{ 
	long command; 
	long param1; 
	long param2; 
	long reserved; 
 
	void my_hton(void)  
	{ 
		command		= htonl(command); 
		param1		= htonl(param1); 
		param2		= htonl(param2); 
		reserved	= htonl(reserved); 
	}; 
 
	void my_ntoh(void)  
	{ 
		command		= ntohl(command); 
		param1		= ntohl(param1); 
		param2		= ntohl(param2); 
		reserved	= ntohl(reserved); 
	}; 
}; 
 
#endif // __H_GlobalDefs__