Camera Bandwidth

[EpicPi]

Camera may take too much bandwidth if we do not compress the images before we send them to the smart dash.

[TheBassett]

Here is a chart I used in 2013 to determine what was acceptable for camera settings and bandwidth.

The FMS network only allows 7 mbits/s to each team and ~1 of those is used just by the DS communication. Simple math means you have 6 mbits/s left (I wouldn't try to hit that limit, I'd try and stay at 4 typically and maybe 5 or 6 at peaks). Here is what I artfully annotated from 2013 to help you guys:

Note that although those are the listed bandwidths, I was able to get well below those when I adjusted the settings on the camera so it basically was only showing black and lights/retroreflective tape - that is a really simple image to compress and because it has little colors in big chunks, it also compresses a lot.

[timstanistreet]

Looks like the CameraServer class has appropriate methods to set this
detail. Looks like you need to experiment a little!

Can RoboRealm see the image from SmartDashboard? It's slightly different to
how we used to connect with the Axis cam in previous years!

On Sun, Jan 18, 2015 at 3:39 PM, TheBassett notifications@github.com
wrote:

Here is a chart I used in 2013 to determine what was acceptable for camera
settings and bandwidth. [image: a7_compression chart]
https://cloud.githubusercontent.com/assets/7651738/5793951/513f7160-9f27-11e4-9a92-a93fc8647ec9.JPG

The FMS network only allows 7 mbits/s to each team and ~1 of those is used
just by the DS communication. Simple math means you have 6 mbits/s left (I
wouldn't try to hit that limit, I'd try and stay at 4 typically and maybe 5
or 6 at peaks). Here is what I artfully annotated from 2013 to help you
guys: [image: a8_compression preferences]
https://cloud.githubusercontent.com/assets/7651738/5793952/513fddda-9f27-11e4-8e5f-6444f2b94e1d.JPG

Note that although those are the listed bandwidths, I was able to get well
below those when I adjusted the settings on the camera so it basically was
only showing black and lights/retroreflective tape - that is a really
simple image to compress and because it has little colors in big chunks, it
also compresses a lot.

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