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RTSP 协议中文版 RTSP 全称 Real Time Streaming Protocol (RTSP) Status of this Memo 本文档目录完成,支持左侧导航栏和链接跳转 This document specifies an Internet standards track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the "Internet Official Protocol Standards" (STD 1) for the standardization state and status of this protocol. Distribution of this memo is unlimited.
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RTSP 协议中文版
Network Working Group H. Schulzrinne
Request for Comments: 2326 Columbia U.
Category: Standards Track A. Rao
Netscape
R. Lanphier
RealNetworks
April 1998
翻译: radium 2005.1
实时流协议(RTSP) ( Real Time Streaming Protocol (RTSP) )
备忘录的状态:
本文档讲述了一种 Internet 社区的 Internet 标准跟踪协议,它需要进一步进行讨论和建议以
得到改进。请参考最新版的“Internet 正式协议标准”(STD1)来获得本协议的标准化程度和状
态。本备忘录的发布不受任何限制。
版权声明:
版权为 The Internet Society 所有。所有权利保留。
摘要:
实时流协议(RTSP)是应用层协议,控制实时数据的传送。RTSP 提供了一个可扩展框架,
使实时数据,如音频与视频的受控、点播成为可能。数据源包括现场数据与存储在剪辑中数
据。该协议目的在于控制多个数据发送连接,为选择发送通道,如 UDP、组 播 UDP 与 TCP,
提供途径,并为选择基于 RTP (RFC1889)上传送机制提供方法。
1
目 录:
1 绪论 Introduction.........................................................................................................................6
1.1 目的 Purpose.....................................................................................................................6
1.2 要求 Requirement.............................................................................................................7
1.3 术语 Terminology.............................................................................................................7
1.4 协议特点 Protocol Properties...........................................................................................8
1.5 RTSP扩展 Extending RTSP...............................................................................................9
1.6 操作模式 Overall Operation...........................................................................................9
1.7 RTSP状态 RTSP States..................................................................................................10
1.8 与其他协议关系 Relationship with Other Protocols .....................................................10
2 符号协定 Notational Conventions.............................................................................................11
3 协议参数 Protocol Parameter....................................................................................................12
3.1 RTSP版本 RTSP Version...............................................................................................12
3.2 RTSP URL ........................................................................................................................13
3.3 会议标识 Conference Identifiers............................................................................15
3.4 会话标识Session Identifiers............................................................................................15
3.5 SMPTE 相对时间戳........................................................................................................15
3.6 正常播放时间 Normal Play Time ...................................................................................15
3.7 绝对时间 Absolute Time................................................................................................16
3.8 选择标签 Options Tags...................................................................................................16
3.8.1 用IANA注册新的选择标签 Registering New Option Tags With IANA............17
4 RTSP消息 ....................................................................................................................................17
4.1 消息类型 Message Type.................................................................................................17
4.2 消息报头 Message Headers............................................................................................18
4.3 消息主体 Message Body................................................................................................18
4.4 消息长度 Message Length .............................................................................................19
5 普通报头域 General Header Fields...........................................................................................19
6 请求 Request..............................................................................................................................19
6.1 请求队列 Request Line...................................................................................................20
6.2 请求报头域 Request Header Fields................................................................................20
7 回应 Response ...........................................................................................................................21
7.1 状态行 Status-Line .........................................................................................................21
7.1.1 状态代码和原因分析 Status Code and Reason Phrase.......................................21
7.1.2 回应报头域 Response Header Fields ..................................................................24
8 实体 Entity.................................................................................................................................24
8.1 实体报头域 Entity Header Fields...................................................................................24
8.2 实体主体 Entity Body ....................................................................................................25
9 连接 Connections.......................................................................................................................25
9.1 流水线操作 Pipelining ...................................................................................................25
9.2 可靠性及确认 Reliability and Acknowledgements........................................................26
10 方法定义 Method Definitions .................................................................................................26
10.1 选择 OPTIONS:.............................................................................................................27
10.2 描述DESCRIBE.................................................................................................................28
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10.3 通告 ANNOUNCE..............................................................................................................29
10.4 建立 SETUP.....................................................................................................................30
10.5 播放 PLAY.......................................................................................................................31
10.6 暂停 PAUSE.....................................................................................................................34
10.7 断开 TEARDOWN..............................................................................................................36
10.8 获取参数 Get_PARAMETER......................................................................................37
10.9 设置参数 SET_PARAMETER.....................................................................................38
10.10 重定向 REDIRECT....................................................................................................39
10.11 录制 RECORD............................................................................................................40
10.12 嵌入二进制数据 Embedded(interleaved) Binary Data..............................................40
11 状态代码定义(Status Code Definitions)..............................................................................42
11.1 成功 2xx(Success 2xx) ..............................................................................................42
11.1.1 存储空间低 250 Low on Storage Space...........................................................42
11.2 重定向(Redirection 3xx) ..........................................................................................43
11.3 客户端错误(Client Error )4xx.................................................................................43
11.3.1 方法不允许 (405 Method Not Allowed) ............................................................43
11.3.2 参数不能理解 (451 Parameter Not Understood)................................................43
11.3.3 会议未找到 (452 Conference Not Found)..........................................................43
11.3.4 带宽不足 (453 Not Enough Bandwidth) ...........................................................44
11.3.5 会话未找到 (454 Session Not Found)...............................................................44
11.3.6 本状态下该方法无效 (455 Method Not Valid in This State)............................44
11.3.7 报头域对资源无效(456 Header Field Not Valid for Resource )........................44
11.3.8 无效范围 (457 Invalid Range)...........................................................................44
11.3.9 参数只读 (458 Parameter Is Read-Only)...........................................................45
11.3.10 不允许合操作(459 Aggregate Operation Not Allowed)...................................45
11.3.11 只允许合操作 (460 Only Aggregate Operation Allowed)...............................45
11.3.12 不支持的传输 (461 Unsupported Transport) ..................................................45
11.3.13 目标不可达 (462 Destination Unreachable)....................................................45
11.3.14 选择不被支持 (551 Option not Supported).....................................................46
12 报头域定义(Header Field Definitions) ...............................................................................46
12.1 接受 Accept..................................................................................................................48
12.2 接受编码 Accept-Encoding..........................................................................................48
12.3 接受语言 Accept-Langue.............................................................................................48
12.4 允许(Allow)..............................................................................................................49
12.5 授权(Authorization)..................................................................................................49
12.6 带宽 Bandwidth............................................................................................................49
12.7 块大小 Blocksize........................................................................................................49
12.8 缓存控制 Cache-Control............................................................................................50
12.9 会议 Conference ...........................................................................................................53
12.10 连接 Connection .........................................................................................................53
12.11 基本内容 Content-Base..............................................................................................53
12.12 内容编码(Content-Encoding).................................................................................53
12.13 内容语言 Content-Language......................................................................................53
12.14 内容长度(Content-Length) ....................................................................................54
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12.15 内容位置 Content-Location........................................................................................54
12.16 内容类型(Content-Type)........................................................................................54
12.17 序列号 CSeq...............................................................................................................54
12.18 日期(Date) ..............................................................................................................54
12.19 过期Expires .................................................................................................................54
12.20 来自 From...................................................................................................................56
12.21 主机 Host....................................................................................................................56
12.22 如果匹配If-Match .......................................................................................................56
12.23 从何时更改(If-Modified-Since).............................................................................56
12.24 最近更改(Last-Modified).......................................................................................57
12.25 位置(Location) .......................................................................................................57
12.26 代理授权 Proxy-Authenticate ....................................................................................57
12.27 代理要求 Proxy-Require ............................................................................................57
12.28 公用性 public..............................................................................................................57
12.29 范围 Range .................................................................................................................58
12.30 提交方(Referer)......................................................................................................59
12.31 稍后再试 Retry-After.................................................................................................59
12.32 要求 Require...............................................................................................................59
12.33 RTP信息 RTP-Info.......................................................................................................60
12.34 比例 Scale...................................................................................................................61
12.35 速度 Speed..................................................................................................................62
12.36 服务器(Server) .......................................................................................................62
12.37 会话 Session ...............................................................................................................63
12.38 时间戳 Timestamp......................................................................................................63
12.39 传输 Transport ............................................................................................................64
12.40 不支持 Unsupported...................................................................................................68
12.41 用户代理(User-Agent) ...........................................................................................68
12.42 变化..............................................................................................................................68
12.43 通过..............................................................................................................................68
12.44 WWW-授权(WWW-Authenticate)..........................................................................68
13 缓存 50.....................................................................................................................................68
14 实例 Examples.........................................................................................................................70
14.1 要求媒体(单播) Media on Demand (Unicast) ........................................................70
14.2 容器文件的流 Streaming of a Container file ...............................................................73
14.3 单个流容器文件 Single Stream Container Files..........................................................76
14.4 组播现场媒体表示 Live Media Presentation Using Multicast..................................78
14.5 在存在的会话中播放媒体 Playing media into an existing session.............................79
14.6 录制 Recording.............................................................................................................81
15 语法 Syntax .............................................................................................................................83
15.1 基本语法 Base Syntax..................................................................................................83
16 安全考虑(Security Considerations) ....................................................................................84
附录A: RTSP协议状态机 RTSP Protocol State Machines .......................................................88
A.1 客户端状态机 Client State Machine ...........................................................................88
A.2 服务器端状态机 Server State Machine.........................................................................90
4
附录B 同RTP协议的交互 Interaction with RTP..........................................................................92
附录C 使用SDP进行RTSP会话描述 Use of SDP for RTSP Session Descriptions.....................93
C.1 定义Definitions...............................................................................................................94
C.1.1 控制URL Control URL........................................................................................94
C.1.2 媒体流 Media streams.........................................................................................95
C.1.3 有效载荷类型 Payload type(s) ...........................................................................95
C.1.4 详细格式参数 Format-specific parameters ........................................................95
C.1.5 表示的范围 Range of presentation.....................................................................96
C.1.6 有效时间 Time of availability.............................................................................96
C.1.7 连接信息 Connection Information......................................................................96
C.1.8 实体标签 Entity Tag ...........................................................................................97
C.2 合控制不可用 Aggregate Control Not Available ..........................................................97
C.3 合控制可用 Aggregate Control Available .....................................................................98
附录D 最简单的RTSP实现 Appendix D: Minimal RTSP implementation.................................99
D.1 客户端 Client.................................................................................................................99
D.1.1 回放 Basic Playback ..........................................................................................101
D.1.2 授权 Authentication-enabled ............................................................................101
D.2 服务器 Server ..............................................................................................................101
D.2.1 回放 Basic Playback ..........................................................................................102
D.2.2 授权 Authentication-enabled .............................................................................103
附录E 作者地址 Authors' Addresses........................................................................................103
附录F 致谢 Acknowledgements...............................................................................................104
参考书目 References...................................................................................................................105
版权申明 Full Copyright Statement............................................................................................108
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