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/* 
*  Openmysee 
* 
*  This program is free software; you can redistribute it and/or modify 
*  it under the terms of the GNU General Public License as published by 
*  the Free Software Foundation; either version 2 of the License, or 
*  (at your option) any later version. 
* 
*  This program is distributed in the hope that it will be useful, 
*  but WITHOUT ANY WARRANTY; without even the implied warranty of 
*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
*  GNU General Public License for more details. 
* 
*  You should have received a copy of the GNU General Public License 
*  along with this program; if not, write to the Free Software 
*  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
* 
*/ 
// 系统通用的数据结构以及部分常量的定义 
 
#ifndef __STRUCT_DEFINE_H__ 
#define __STRUCT_DEFINE_H__ 
 
enum { 
    SP4CS_PORT = 20, // SP接受CS连接的TCP端口 
}; 
 
enum { 
    MD5_LEN = 32,          // MD5值的长度 
	BLOCK_SIZE = 16384,	   // 默认分块大小 
}; 
 
// 普通网络的IP地址信息，精简版，大小8字节 
// 不能直接当做sockaddr使用，只能赋值给一个sockaddr 
class NormalAddress { 
public: 
    NormalAddress() { 
        memset(this, 0, sizeof(NormalAddress)); 
        sin_family = AF_INET; 
    }; 
    bool operator == (const NormalAddress& addr) const { 
        return ((addr.sin_addr.s_addr == sin_addr.s_addr) &&  
            (addr.sin_port == sin_port)); 
    }; 
    short sin_family; 
    u_short sin_port; 
    struct in_addr sin_addr; 
}; 
 
// 数据传输的相关信息，目前大小32字节 
class TransferInfo { 
public: 
    TransferInfo() { memset(this, 0, sizeof(TransferInfo)); }; 
    LONGLONG totalDownBytes;  // 总共下载字节 
    LONGLONG totalUpBytes;    // 总共上传字节 
    float    currDownSpeed;   // 当前下载速度 
    float    currUpSpeed;     // 当前上传速度 
    float    avgDownSpeed;    // 平均下载速度 
    float    avgUpSpeed;      // 平均上传速度 
}; 
 
// DirectShow初始化需要的媒体类型数据，大小56字节 
struct TVMEDIATYPESECTION { 
	GUID     majortype; 
	GUID     subtype; 
	GUID     formattype; 
	ULONG    lSampleSize; 
	unsigned bFixedSizeSamples:1; 
	unsigned bTemporalCompression:1; 
	unsigned bThisPinOnly:1; 
	unsigned cbFormat:16; 
	unsigned :13; 
}; 
 
// Sample头的大小，共16字节 
struct SampleHeader { 
	unsigned	size:28;			// 此Sample大小 
	unsigned	bDiscontinuity:1;	// Sample属性 
	unsigned	bPreroll:1;			// Sample属性 
	unsigned	bSyncPoint:1;		// 是否关键帧 
	unsigned	bAudioSample:1;		// 是否音频Sample 
	UINT		length;				// 时间跨度 
	LONGLONG	start;				// 起始时间 
}; 
 
#endif