OPENH323 源码分析-http://www.within.net/tech
目录
1.
体系结构分析..............................................................................................1
1.1
传输层
............................................................................................1
1.1.1 概述 .........................................................................................1
1.1.2 传输对象的创建和打开 ..........................................................2
1.1.3 接口 .........................................................................................3
1.1.4
应用 .........................................................................................4
1.2
H.225.0 RAS 协议 ..........................................................................6
1.2.1
协议数据单元抽象..................................................................6
1.2.2
协议处理机实现......................................................................8
1.3
H.225.0 呼叫信令协议.................................................................16
1.3.1
协议数据单元抽象................................................................16
1.3.2
呼叫信令协议实现和呼叫管理
.............................................18
1.3.3 H.225.0 传输信道..................................................................25
1.3.4 呼叫信令协议线程................................................................26
1.4 H.245 传输控制协议....................................................................27
1.4.1
协议数据单元抽象................................................................27
1.4.2
控制协议的实现....................................................................28
1.4.3
协议状态机的简单描述 ........................................................32
1.4.4
协议数据传输信道................................................................34
1.4.5
H.245 控制协议线程 .............................................................35
1.5
实时传输协议 ..............................................................................35
1.5.1
数据报抽象
............................................................................35
1.5.2 RTP 信道 ...............................................................................35
1.5.3 发送和接收过程....................................................................36
1.5.4 RTP 会话的控制....................................................................38
1.6
应用程序接口 ..............................................................................40
1.6.1
能力及能力集........................................................................40
1.6.2
编解码器 ...............................................................................43
1.6.3
逻辑信道 ...............................................................................45
1.6.4
连接 .......................................................................................47
1.6.5
端点 .......................................................................................64
1.6.6
类之间的相互关系
................................................................80
2 运行期分析................................................................................................81
2.1 侦听..............................................................................................81
2.2 发现网守并向网守注册 ...............................................................82
2.3
呼叫..............................................................................................83
2.4
逻辑信道的打开及实时数据传输................................................85
2.5
挂断..............................................................................................88
附录 A 专门词定义 ......................................................................................90
附录 B 参考资料 ..........................................................................................91
附录 C H.323 网络结构................................................................................92
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