All virgin hubs from 1 to 3 are gigabit capable with the colour light representing that. Orange means 10/100 green means 1gb. I have a NVR through mine and I assumed 1-2 second lag from movement on camera to seeing was normal.
Lag when viewing CCTV through a Network
- Thread starter mstizomad
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Hi everyone,
Thanks for all of your replies. Yeah my Virgin Media is indeed Gigabit on ALL LAN ports. Also ive checked the Link speeds in task manager at it said Gigabit connection.
Has anyone here managed to get a HD stream over a network with no lag? OR do i just have to accept it with 2 second lag?
cheers
Thanks for all of your replies. Yeah my Virgin Media is indeed Gigabit on ALL LAN ports. Also ive checked the Link speeds in task manager at it said Gigabit connection.
Has anyone here managed to get a HD stream over a network with no lag? OR do i just have to accept it with 2 second lag?
cheers
Without knowing the dvr make and model and camera model ...it's all guess work for a start
It's difficult to be sure but actually suspect the web browser is the cause of the delay.
The browser doesn't know much about the server, it doesn't know whether the server will try to send it bframes (most embedded encoders don't but the browser doesn't know the stream came from an embedded encoder), it doesn't know what the latency of the connection is (that is all hidden by the OS) and hence how long it will take to get a lost frame retransmitted. So it inserts a relatively large delay to make sure it can smooth over such things.
The browser doesn't know much about the server, it doesn't know whether the server will try to send it bframes (most embedded encoders don't but the browser doesn't know the stream came from an embedded encoder), it doesn't know what the latency of the connection is (that is all hidden by the OS) and hence how long it will take to get a lost frame retransmitted. So it inserts a relatively large delay to make sure it can smooth over such things.
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What's the make and model of the cameras?
You're going to have to do a bit of analysis here and I identify what part of your setup is acting as the bottleneck. I also suspect it's your router, but it needs to be confirmed.
It's definitely not going to be your PC specs because:
1. An 8 core cpu (hell even a quad core cpu) is more than powerful to transcode the videos. It's not the RAM that does it, it's the CPU and yours is more than adequate.
2. You're hardly going to be using video RAM as you're not going to be transforming, digitizing and shading models etc. as is required in video games.Your 2GB of video RAM is more than adequate.
May be use software to monitor the bandwidth of the setup, and see if it exceeds that of the router. There are lots of free software out there.
You're going to have to do a bit of analysis here and I identify what part of your setup is acting as the bottleneck. I also suspect it's your router, but it needs to be confirmed.
It's definitely not going to be your PC specs because:
1. An 8 core cpu (hell even a quad core cpu) is more than powerful to transcode the videos. It's not the RAM that does it, it's the CPU and yours is more than adequate.
2. You're hardly going to be using video RAM as you're not going to be transforming, digitizing and shading models etc. as is required in video games.Your 2GB of video RAM is more than adequate.
May be use software to monitor the bandwidth of the setup, and see if it exceeds that of the router. There are lots of free software out there.
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