Subscriber Discussion

Best Practices For Managing The Streaming Of Multiple Sites Back To A Central Location

UI
Undisclosed Integrator #1
Sep 20, 2016

Getting involved with bringing a number of different sites in different states together for viewing from one location.  There will be local viewing at each location but also the streaming of all sites back to one them.  The sites average about 30-40 cameras each. 

What are the best practices for trying to pull in (and push out) this much video?  Pulling a second low resolution stream from each camera for remote viewing vs. local viewing?  I did some tests on a 3 megapixel camera.  The full resolution stream was about 150+ kB/s.  The 640x480 stream was <20 kB/s.  That is a huge difference. 

 

 

 

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Jon Dillabaugh
Sep 21, 2016
Pro Focus LLC

It all depends on the VMS. Some will transcode to allow the best stream possible. It will also depend on the inbound bandwidth available at the central office.

UI
Undisclosed Integrator #1
Sep 21, 2016

It is Exacq. I would imagine that they have as large a pipe as you can get incoming but they don't want to choke it all up by trying to pull in 64 cameras on a big screen. With Exacq I believe it will send the full quality stream no matter how many you have up on the screen at the same time. This isn't a good thing and totally necessary when viewing little boxes. Am I wrong about this?

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Jon Dillabaugh
Sep 21, 2016
Pro Focus LLC

"Multistreaming Support for IP Cameras
The new Multistreaming feature of exacqVision 5 allows the ability to set multiple, independent video streams from the IP camera. Each stream can be set at different frame rates, resolution and quality level, ideal if you require remote viewing over a limited-bandwidth connection, but want to retain the highest resolution for recording and local viewing. Up to four streams per camera can be selected, depending on the IP camera model. In addition, up to eight ‘Region of Interest’ streams can be setup on select Arecont Vision cameras, allowing for true cropping of individual, independent streams, and a full realization of the benefits of multi-megapixel cameras.

With exacqVision Multistreaming, all streams can be recorded, viewed live, saved to views, exported, and available in search and playback. All streams can be individually configured for recording schedules, storage rules and more. No additional licensing is required; the standard exacqVision camera license enables up to four video streams, and up to eight Region of Interest streams are available on Arecont Vision cameras. Supported IP cameras for multistreaming in Version 5 include Axis, Arecont Vision, Panasonic and ACTi, with more coming. Over 240 IP camera models are supported in multistreaming in this release, with more coming. Multistreaming is supported in exacqVision Pro, Enterprise, and Edge"

*Copied this from a post by Michael Miller from 2015 on another forum.

UI
Undisclosed Integrator #1
Sep 22, 2016

This was mentioned in the original post:

Pulling a second low resolution stream from each camera for remote viewing vs. local viewing

This sounds like a labor intensive thing to have to setup a second stream for 300 cameras though. Was looking for a better way even it it entailed swapping out the VMS for something else. I guess what I am looking for is a client that can change the quality of the stream automatically depending on how many are view on the screen.

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Jon Dillabaugh
Sep 22, 2016
Pro Focus LLC

Avigilon does this very well.

MM
Michael Miller
Sep 22, 2016

Yes it does... We have a number of large customers with many sites streaming to multiple users over WAN and VPN connections. One project has up to 6 cameras per site with currently 18 locations all over LTE connections back to the SOC with almost zero setup.

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