pccode_2006910125951577
所属分类：网络编程
开发工具：Visual C++
文件大小：4054KB
下载次数：97
上传日期：2007-07-31 18:07:16
上 传 者：
中国人民喜洋洋
说明： NetTalk是一个适用于局域网和因特网的可视电话软件
一．开发环境
Windows2000 Server & Visual C++6.0 & SDK
+自开发的CWndX类库(相当于简化的MFC涉及窗口的部分)
二．支持环境
Windows98/ME/2000/XP
三．所涉及协议和标准
网络传输采用UDP协议，音频压缩采用G.729标准，视频压缩采用H.263标准
四．性能参数
以音频帧为基准，每帧音频数据有２４０个采样点，时间为２４０＊１０００／８０００＝３０ms，８０００为音频的采样率。
数据接收端队列缓冲延迟：３０＊3＝90ms
数据发送端录音延迟：30ms
数据压缩解压耗时：<40ms
网络延迟：<100ms（我想校网情况应该不错J）
总延迟：<260ms
根据VOIP标准，总延迟<300ms是人可以接受的，以上计算是保守的，实际情况可能会好得多。
文件列表:
20061178276088\NetTalk\NetTalk.exe (647168, 2004-08-04)
20061178276088\NetTalk\log.txt (397, 2004-09-19)
20061178276088\NetTalk\NetTalk\开发文档\NetTalk技术参数.doc (23040, 2002-04-26)
20061178276088\NetTalk\NetTalk\开发文档\软件结构.doc (47104, 2002-04-26)
20061178276088\NetTalk\NetTalk\开发文档\软件特点及开发中的问题.doc (20992, 2002-04-26)
20061178276088\NetTalk\NetTalk\开发文档 (0, 2005-09-01)
20061178276088\NetTalk\NetTalk\temp (0, 2005-09-01)
20061178276088\NetTalk\NetTalk\Project\UI\ddutil.cpp (8163, 1997-07-15)
20061178276088\NetTalk\NetTalk\Project\UI\RippleWnd.cpp (7364, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\UI\CoolBtn.cpp (5440, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\UI\VideoWnd.cpp (10475, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\UI\MsgBox.cpp (6524, 2001-12-14)
20061178276088\NetTalk\NetTalk\Project\UI\Splash.cpp (1770, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\UI\SlideBar.cpp (4626, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\UI\GraphDlg.cpp (7193, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\UI\NewMsgBox.cpp (3977, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\UI\AddrBook.cpp (6446, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\UI\MsgTalk.cpp (6416, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\UI (0, 2005-09-01)
20061178276088\NetTalk\NetTalk\Project\include\wavein.h (1388, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\include\GDIX.H (1551, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\include\VolumeCtrl.h (764, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\include\VideoWnd.h (1470, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\include\VolumeOutWave.h (1827, 2001-12-15)
20061178276088\NetTalk\NetTalk\Project\include\GraphDlg.h (1088, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\include\ddutil.h (1040, 1997-07-15)
20061178276088\NetTalk\NetTalk\Project\include\WaveShow.h (1588, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\include\UDPSocket.h (1729, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\include\CodecMgr.h (1333, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\include\AudioPlay.h (699, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\include\WaveOut.h (1160, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\include\NewMsgBox.h (1168, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\include\Common.h (717, 2001-12-01)
20061178276088\NetTalk\NetTalk\Project\include\DataBase.h (411, 2001-12-01)
20061178276088\NetTalk\NetTalk\Project\include\AudioRec.h (849, 2002-05-05)
20061178276088\NetTalk\NetTalk\Project\include\AVFile.h (1339, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\include\MsgBox.h (975, 2001-12-14)
20061178276088\NetTalk\NetTalk\Project\include\G729a.h (1261, 2001-12-15)
20061178276088\NetTalk\NetTalk\Project\include\Hash.h (1277, 2002-05-02)
20061178276088\NetTalk\NetTalk\Project\include\CmdMgr.h (849, 2001-12-06)
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