Re: [Live-devel] H264 stream timestamps jumping backwards with proxy

2022-04-27 Thread Ross Finlayson
> On Apr 27, 2022, at 11:06 PM, Juho Ylikorpi wrote: > > Hi, > > There is 100 cameras and each has own proxy process delivering streams to > multiple different clients. > > I know that processes don’t interact, but something is causing timestamps > jump backwards when stream is flowing trou

Re: [Live-devel] H264 stream timestamps jumping backwards with proxy

2022-04-27 Thread Juho Ylikorpi
Hi, There is 100 cameras and each has own proxy process delivering streams to multiple different clients. I know that processes don’t interact, but something is causing timestamps jump backwards when stream is flowing trough this setup. Any ideas how to debug presentation time calculation? /J

Re: [Live-devel] H264 stream timestamps jumping backwards with proxy

2022-04-27 Thread Ross Finlayson
> On Apr 27, 2022, at 12:09 PM, Juho Ylikorpi wrote: > > we see this happening only when there are multiple proxy processes running > parallel. What do you mean by this? Are you referring to multiple ‘front-end’ clients accessing a single proxy server (serving a single ‘back-end’ server)?

Re: [Live-devel] H264 stream timestamps jumping backwards with proxy

2022-04-27 Thread Juho Ylikorpi
Thanks for your reply. It seems that there might be some issue with calculation of presentation times then because we see this happening only when there are multiple proxy processes running parallel. With just single proxy process running there is no such jumps and also capture straight from ca

Re: [Live-devel] H264 stream timestamps jumping backwards with proxy

2022-04-27 Thread Ross Finlayson
You should never need to concern yourself with “RTP timestamps”. Instead, you should consider only “presentation times”. (Our software automatically converts presentation times to RTP timestamps (when sending), and RTP timestamps to presentation times (when receiving). Our proxy server (and o

[Live-devel] H264 stream timestamps jumping backwards with proxy

2022-04-27 Thread Juho Ylikorpi
Hi, Any ideas what might be causing this issue with timestamps jumping backwards? PT=DynamicRTP-Type-96, SSRC=0xFD9103A6, Seq=11785, Time=3386874533 FU-A [TCP segment of a reassembled PDU] PT=DynamicRTP-Type-96, SSRC=0xFD9103A6, Seq=11786, Time=3386874533 FU-APT=DynamicRTP-Type-96, SSRC=0xFD910