总结包括RTP/RTCP的机制，类型，负载和安全srtp部分，并不包括相关的nat/ice穿透机制，dtls安全机制， sdp offer-answer sip相关的协商机制和rtsp流控协议。
| RFC版本号 |
名称 |
备注 |
| 1889 |
RTP: A Transport Protocol for Real-Time Applications |
早期RTP协议，RTP v1 |
| 1890 |
RTP Profile for Audio and Video Conferences with Minimal Control |
RTP的负载类型定义，对应于RTP v1 |
| 2198 |
RTP Payload for Redundant Audio Data |
发送音频冗余数据的机制，FEC的雏形 |
| 3550 |
RTP: A Transport Protocol for Real-Time Applications |
现用RTP协议，RTP v2 |
| 3551 |
RTP Profile for Audio and Video Conferences with Minimal Control |
RTP的负载类型定义，对应于RTP v2 |
| 3611 |
RTP Control Protocol Extended Reports (RTCP XR) |
RTCP的拓展报文即XR报文定义 |
| 3640 |
RTP Payload Format for Transport of MPEG-4 Elementary Streams |
RTP负载为MPEG-4的格式定义 |
| 3711 |
The Secure Real-time Transport Protocol (SRTP) |
RTP媒体流采用AES-128对称加密 |
| 3984 |
RTP Payload Format for H.264 Video |
RTP负载为H264的格式定义，已被6184取代 |
| 4103 |
RTP Payload for Text Conversation |
RTP负载为文本或者T.140的格式定义 |
| 4585 |
Extended RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback (RTP/AVPF) |
NACK定义，通过实时的RTCP进行丢包重传 |
| 4587 |
RTP Payload Format for H.261 Video Streams |
H261的负载定义 |
| 4588 |
RTP Retransmission Payload Format |
RTP重传包的定义 |
| 4961 |
Symmetric RTP / RTP Control Protocol (RTCP) |
终端收发端口用同一个，叫做对称的RTP，便于DTLS加密 |
| 5104 |
Codec Control Messages in the RTP Audio-Visual Profile with Feedback (AVPF) |
基于4585实时RTCP消息，来控制音视频编码器的机制 |
| 5124 |
Extended Secure RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback (RTP/SAVPF) |
SRTP的丢包重传 |
| 5285 |
A General Mechanism for RTP Header Extensions |
RTP 扩展头定义，可以扩展1或2个字节，比如CSRC，已被8285协议替代 |
| 5450 |
Transmission Time Offsets in RTP Streams |
计算RTP的时间差，可以配合抖动计算 |
| 5484 |
Associating Time-Codes with RTP Streams |
RTP和RTCP中时间格式的定义 |
| 5506 |
Support for Reduced-Size Real-Time Transport Control Protocol (RTCP): Opportunities and Consequences |
RTCP压缩 |
| 5669 |
The SEED Cipher Algorithm and Its Use with the Secure Real-Time Transport Protocol (SRTP) |
SRTP的对称加密算法的种子使用方法 |
| 5691 |
RTP Payload Format for Elementary Streams with MPEG Surround Multi-Channel Audio |
对于MPEG-4中有多路音频的RTP负载格式的定义 |
| 5760 |
RTP Control Protocol (RTCP) Extensions for Single-Source Multicast Sessions with Unicast Feedback |
RTCP对于单一源进行多播的反馈机制 |
| 5761 |
Multiplexing RTP Data and Control Packets on a Single Port |
RTP和RTCP在同一端口上传输 |
| 6051 |
Rapid Synchronisation of RTP Flows |
多RTP流的快速同步机制，适用于MCU的处理 |
| 6128 |
RTP Control Protocol (RTCP) Port for Source-Specific Multicast (SSM) Sessions |
RTCP对于多播中特定源的反馈机制 |
| 6184 |
RTP Payload Format for H.264 Video |
H264的负载定义 |
| 6188 |
The Use of AES-192 and AES-256 in Secure RTP |
SRTP拓展定义AES192和AES256 |
| 6189 |
ZRTP: Media Path Key Agreement for Unicast Secure RTP |
ZRTP的定义，非对称加密，用于密钥交换 |
| 6190 |
RTP Payload Format for Scalable Video Coding |
H264-SVC的负载定义 |
| 6222 |
Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs) |
RTCP的CNAME的选定规则，可根据RFC 4122的UUID来选取 |
| 6798 6843 6958 7002 7003 7097 |
RTP Control Protocol (RTCP) Extended Report (XR) Block for XXX |
RTCP的XR报文，关于各个方面的定义 |
| 6904 |
Encryption of Header Extensions in the Secure Real-time Transport Protocol |
SRTP的RTP头信息加密 |
| 7022 |
Guidelines for Choosing RTP Control Protocol (RTCP) Canonical Names (CNAMEs) |
RTCP的CNAME的选定规则，修订6222 |
| 7160 |
Support for Multiple Clock Rates in an RTP Session |
RTP中的码流采样率变化的处理规则，音频较常见 |
| 7164 |
RTP and Leap Seconds |
RTP时间戳的校准机制 |
| 7201 |
Options for Securing RTP Sessions |
RTP的安全机制的建议，什么时候用DTLS，SRTP，ZRTP或者RTP over TLS等 |
| 7202 |
Securing the RTP Framework: Why RTP Does Not Mandate a Single Media Security Solution
|
RTP的安全机制的补充说明 |
| 7656 |
A Taxonomy of Semantics and Mechanisms for Real-Time Transport Protocol (RTP) Sources |
RTP在webrtc中的应用场景 |
| 7667 |
RTP Topologies |
在MCU等复杂系统中，RTP流的设计规范 |
| 7741 |
RTP Payload Format for VP8 Video |
负载为vp8的定义 |
| 7798 | RTP Payload Format for High Efficiency Video Coding (HEVC) | 负载为HEVC的定义 |
| 8082 |
Using Codec Control Messages in the RTP Audio-Visual Profile with Feedback with Layered Codecs |
基于4585实时RTCP消息，来控制分层的音视频编码器的机制，对于5104协议的补充 |
| 8083 |
Multimedia Congestion Control: Circuit Breakers for Unicast RTP Sessions |
RTP的拥塞处理之码流环回的处理 |
| 8108 |
Sending Multiple RTP Streams in a Single RTP Session |
单一会话，单一端口传输所有的RTP/RTCP码流，对现有RTP/RTCP机制的总结 |
| 8285 |
A General Mechanism for RTP Header Extensions |
RTP 扩展头定义，可以同时扩展为1或2个字节 |