[OBS] Reprint: what about the serious delay of OBS live broadcast and Caton?

• Great gods yes rtmp Tweet and share

GOP Set up 2 second

Poly way Zhihu column of

• Poly way
• From streaming to playing , The link that will introduce delay is coding delay 、 Network packet loss and network jitter 、 Segmented transmission of video 、 node 、 Player cache, etc .
• because RTMP be based on TCP Don't lose your bag , So when the network state is bad , The server will cache the package , Cause cumulative delay .
• An optimized RTMP-CDN The end-to-end delay of the network is about 2-3 second , Considering the compatibility of mobile terminals, most of them are HLS Flow namely M3U8 agreement , The delay will be higher , be based on 15 Seconds to 1 Between minutes .
• We know from the above RTMP The agreement cannot be modified ,CDN Streaming is a mature scheme in the industry , If you want to be based on this transmission link , Can only from OBS Software coding configuration optimization .OBS It does provide a low latency solution ,

It is very easy to cause plug flow jam : ABR + 1 key_int + veryfast +baseline + zerolatency

• The logic of this set of parameters is to optimize coding and caching as much as possible ࿰