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Re: [Debconf-video] Info for using the Opsis board + HDMI2USB for TwinPact replacement





On 07/11/2015 14:44, Tim Ansell wrote:
On 8 November 2015 at 01:22, Stefano Rivera <stefanor@debian.org> wrote:

Hi Tim (2015.11.07_09:35:22_+0200)
*Ethernet Streaming*
There is experimental support for streaming out via the Gigabit Ethernet
rather than using USB. This would remove the need for the BeagleBone
Black
in your proposed set up.
That BeagleBone Black is also for outputting things via the HDMI2USB -
the second input. Non-critical, but nice for:
* Putting up X minutes remaining warnings on the confidence monitor
* Displaying now and next information on the projector between talks
* Playing a stream, broadcast from another room.

If there was a way of slinging the odd JPEG (or MJPEG stream, for the
room-repeat use-case) at the HDMI2USB, then the BBB could be dropped
entirely.

Gigabit Ethernet is full-duplex, so I can't see why we couldn't do some
type of incoming stream (even pretty high bandwidth) without effecting the
output in any way.

Tim 'mithro' Ansell



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Sorry not been reeding email during the Mini-Conf.

Fantastic!
Tim seriously that is great, thank you so much for your feedback
I am pretty certain that with Ethernet fully working then we can make Opsis do pretty much anything we want. Having something like a Beagle bone connected will allow us to do pretty much the same until such time that Opsis boots from FLASH / Ethernet becomes available etc etc.

At the start of the week I was expecting to use our existing twinpact solution as the frame grabber, instead we ended up using an Atlys, attached to a laptop and a confidence monitor. The laptop dealing with programming at boot time, and transcoding the MJPEG steam to 'DV' to be passed up to DV-Switch.

We were able to use HDMI, DP (& DVI) and VGA as our input sources using a number of adapters, and we ran a VGA feed to the projector again using an adapter.

I believe that we only had *ONE* device that didn't automatically pick up and 'just-work' with our selected 1024x768 resolution (IIRC this was a Chromebook) and that was probably because it didn't want to do such an outdated video mode ;-)

The system was stable and worked for the entire weekend and already IMO surpasses the twinpact solution. And this is going to get better...

Regards
/Andy

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