WebRTC RTX¶
Abstract |
WebRTC RTX |
Authors |
Walter Fan |
Status |
WIP |
Updated |
2021-12-29 |
简介¶
RTP retransmission is an effective packet loss recovery technique for real-time applications with relaxed delay bounds.
RFC4588 describes an RTP payload format for performing retransmissions. Retransmitted RTP packets are sent in a separate stream from the original RTP stream.
发送方与接收方之间的丢包会显著地降低接收到的媒体质量。有好几种技术可以用来提高抗丢包的弹性：
Forward error correction (FEC)： 前身纠错
Retransmissions 重传
Interleaving 交织
RFC2354 对这些方法有所讨论
RTX 即 RTransmission, 用于丢包重传， 它使用额外的 ssrc