Video over Ethernet

[Lucas Krech]

I need to send a video from one Mac to another over Ethernet. Wireless is not an option. Other physical connectors are not an option. Also, budget is maxed out save perhaps $20 and resources are slim. Anyone have a solution? Can Syphon send over local network? Any configuration oddities folk know of?

TIA.

-L

*insert witty mobile device advertising here*

[Dave "luckydave" Memory]

On Friday, September 12, 2014 at 3:42 PM, Lucas Krech wrote:

I need to send a video from one Mac to another over Ethernet.

Have you seen Syphon2Network?

http://www.vjkidkadian.com/store/products/syphon2network/

 

I'd check with @_vade to see if he has any advice, but this appears to be promising, and is only $10.

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[Lucas Krech]

I'll take a look. Thanks!

-L

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[Drew Schmidt]

Ooo. That's good.
I use AirParrot products in the classroom. I like to install reflector on the PC machines wired up to the classroom system so I can display my Mac over airplay. I've never tried it with qlab video, but they have a 14 day free trial.

[Lucas Krech]

Just tried this. It took about 5 minutes to set up. Has about a 1-1.5 second latency but other than that is smoother than an Apple Keynote broadcast. 

-L

*insert witty mobile device advertising here*

On Sep 12, 2014, at 6:48 PM, Dave "luckydave" Memory <luck...@figure53.com> wrote:

--

[Lucas Krech]

Airbeam works flawlessly over Ethernet by the way. Far superior to Syphon2Network in terms of latency. However, I can only seem to get it to see my built in camera not my ultimate input of a Blackmagic Shuttle. QLab sees the BM device fine. Anyone got any tricks?

For those playing at home the route goes camcorder -> Intensity Suttle -> Mac1 -> Ethernet -> Mac2 -> QLab -> final display. I'm trying to find the best software solution to get over that Ethernet line and I keep hitting walls of unusability. 

Any help is appreciated. 

-L

*insert witty mobile device advertising here*

[Douglas Heriot]

I’ve got a couple of tricks – there’s this handy app called 'iGlasses'. It’s designed for adding effects to a webcam, but it can turn Syphon sources into a webcam too! It’s $20. You could get the Blackmagic to Syphon app BlackSyphon, and send it to iGlasses. Actually, iGlasses seems to discover my Blackmagic Ultrastudio Mini Recorder as a webcam already, but AirBeam doesn’t.

http://www.ecamm.com/mac/iglasses/

http://vdmx.vidvox.net/blog/black-syphon

Another totally different option, going back to asking 'what are you really trying to acheive?' I’m guessing you’ve got something like one mac on stage with a camera, and another mac at FOH with a projector, and you need to get the signal a long distance from the camcorder on stage, to the projector, controlled by QLab to fade it in/out & effects, etc.

Rather than sending the video a long distance over ethernet, I’ve recently had good success sending video over SDI, with cheap eBay SDI/HDMI converters. They’re about $60 each. Monoprice also has some around $90 each. This is quite a bit cheaper than the cheap Blackmagic ones, for around $300 each. This low price just enabled me to set up one venue I work with with an SDI system that was previously way too expensive. I realise this is above your $20 budget, but might be worth looking at if latency is of big importance. I haven’t tested latency on the converters, but I guess it won’t be more than 1 frame.

Only catch is you have to be more careful about sending standard video formats (NTSC, PAL, 1080p30, etc.) but if the source is a camcorder, it’s probably fine.

Here’s the ones I bought: (they’re Australian though)

http://www.ebay.com.au/itm/MINI-3G-HDMI-to-SDI-Converter-1080p-to-3G-SDI-SDI-HD-SDI-3G-SDI-/191064561822?pt=AU_Television_Accessories&hash=item2c7c55d89e&_uhb=1

http://www.ebay.com.au/itm/New-HDV-S008-MINI-3G-SDI-HD-SDI-3G-SDI-to-HDMI-Converter-Adapter-1080P-Black-/350887558547?pt=AU_Television_Accessories&hash=item51b2873d93&_uhb=1

Hope one of those options helps! (Probably the iGlasses one).

Douglas

[Lucas Krech]

I may look at the app. Connection has to be Ethernet. Show has a turntable with slip ring that only allows Ethernet and power passthrough. 

-L

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[Sam Kusnetz]

Lucas Krech wrote:
> I may look at the app. Connection has to be Ethernet. Show has a
> turntable with slip ring that only allows Ethernet and power passthrough.

Does it have to be ethernet, or can it be some other use of CAT-5 cable?

Cheerio
Sam

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QLab Field Operative
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[Lucas Krech]

Please excuse my shorthand. Cat-5. But it also needs to be show control signal so I assumed Ethernet only. Networking protocols are not my strong suit.

-L

*insert witty mobile device advertising here*

[Daniel Richert]

Here is a free version that I have tested and it works, minimal delay 3frames max

here is a demo video:

http://vimeo.com/90106476

for the computer you want to be on the send end of system instal syphon virtual screen

http://andreacremaschi.github.io/Syphon-virtual-screen/

And

for both receive and send machines TCP syphon

http://techlife.sg/TCPSyphon/

then have you network settings so that both are on the same network.

Launch syphon virtual screen and tcp syphon server on sending end

and enable syphon server from (virtualscreen) toolbar icon dropdown

and link the tcp server to your client (qlab machine)

Lauch tcp syphon client on Receiving machine...

hope this makes some sense :)

[Sam Kusnetz]

Lucas Krech wrote:
> Please excuse my shorthand. Cat-5. But it also needs to be show control signal so I assumed Ethernet only. Networking protocols are not my strong suit.

Apologies if I seemed to be snarky; I ask because I believe this, or
something like it, is your best solution:

http://www.monoprice.com/Product?c_id=109&cp_id=10110&cs_id=1011012&p_id=8123&seq=1&format=2

It sends HDMI video and ethernet network signal over a single CAT-5e or
CAT-6 line.

I believe hardware solutions are likely to be your best bet in the
department of long video transmissions.

[mic]

Hi,

I use the already cited aiparrot in conjuction with airserver on the client machine. Airserver has the nice feature to give you a syphon stream - so you can stream to qlab. Airparrot streams all the window - including the upper bar and the frame  - so i created a viewer with QC and built it in a frameless solution with QuartzBuilder, to run on the server. 

Other possibilities, i never tested, are updsyphon and tcpsyphon

regards

michele

[mic]

Hi Douglas,

a quick question: how to you input the signal from the SDi2HDMI converter to the mac? I understand you get a HDMI signal, but then, how do you input it to the mac?

ciao

mic

[Douglas Heriot]

I personally have a Blackmagic Ultrastudio Mini Recorder – around $150, and you get HDMI or SDI input. It appears in QLab as a camera, and is compatible with a bunch of other software too.

https://www.blackmagicdesign.com/products/ultrastudiothunderbolt

Blackmagic has a range of other similar products, that work over USB3, or PCIe

https://www.blackmagicdesign.com/products/ultrastudiousb3

https://www.blackmagicdesign.com/products/decklink

https://www.blackmagicdesign.com/products/intensity

The thing to watch out for is making sure they support the exact video format your source is outputting. In particular, be careful of colour space (RGB vs YCbCr – some Blackmagic stuff only suppors YCbCr), frame rate, and HDCP encryption (not supported by Blackmagic, but there are various things on eBay you can get from China that can strip it for you).

[Nick Fidalgo]

Question: Would this be a solution for my situation? One of the venues I play at weekly has a "video in" ethernet jack on the wall. No one there seems to know exactly how the video feed works but they found out that all they need to do is select a different input on the TVs. Would I be able to use this Syphon Virtual Screen with Serato Video (which now has syphon support) and send that video signal over the ethernet port on my MBP? Does this application require a computer on the other end or can it just send the video signal?

OR would an adapter like this be a more simple solution since it would be coming out of my video card? http://www.amazon.com/Thunderbolt-to-Gigabit-Ethernet-Adapter/dp/B008ALA6DW I can't seem to find any mention of sending a video signal through this adapter anywhere, everyone only mentions sending data for file transfers. 

My guess is that they are using ethernet cables and HDMI adapters to go into each TV instead of running long HDMI cables everywhere. I am only semi-knowledgable about this type of setup so any help would be much appreciated. 

[Sam Kusnetz]

Hi Nick

The Mac doesn't natively output video over its Ethernet port, and I looked over Serato's website and couldn't find that feature anywhere.

This is something that is almost definitely going to require a hardware component to function.

Best,
Sam

Nick Fidalgo

February 13, 2015 at 1:31 PM

Question: Would this be a solution for my situation? One of the venues I play at weekly has a "video in" ethernet jack on the wall. No one there seems to know exactly how the video feed works but they found out that all they need to do is select a different input on the TVs. Would I be able to use this Syphon Virtual Screen with Serato Video (which now has syphon support) and send that video signal over the ethernet port on my MBP? Does this application require a computer on the other end or can it just send the video signal?

OR would an adapter like this be a more simple solution since it would be coming out of my video card? http://www.amazon.com/Thunderbolt-to-Gigabit-Ethernet-Adapter/dp/B008ALA6DW I can't seem to find any mention of sending a video signal through this adapter anywhere, everyone only mentions sending data for file transfers. 

My guess is that they are using ethernet cables and HDMI adapters to go into each TV instead of running long HDMI cables everywhere. I am only semi-knowledgable about this type of setup so any help would be much appreciated. 

On Sunday, September 14, 2014 at 5:55:36 AM UTC-4, Daniel Richert wrote:

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Daniel Richert

September 14, 2014 at 5:55 AM

Here is a free version that I have tested and it works, minimal delay 3frames max

here is a demo video:

http://vimeo.com/90106476

for the computer you want to be on the send end of system instal syphon virtual screen

http://andreacremaschi.github.io/Syphon-virtual-screen/

And

for both receive and send machines TCP syphon

http://techlife.sg/TCPSyphon/

then have you network settings so that both are on the same network.

Launch syphon virtual screen and tcp syphon server on sending end

and enable syphon server from (virtualscreen) toolbar icon dropdown

and link the tcp server to your client (qlab machine)

Lauch tcp syphon client on Receiving machine...

hope this makes some sense :)

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Lucas Krech

September 12, 2014 at 6:42 PM

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[Nick Fidalgo]

Thanks for the quick reply. The Serato Video plugin has syphon support. I guess my main question is if I'm sending syphon video over ethernet, does it require a computer on the other end with a syphon application? Is it just sending data that the other application has to encode or is it actually sending a video feed?

OR with a hardware component, what would I need? Would I have to go out Thunderbolt to HDMI and use a HDMI to Ethernet box? Or would I just be able to use that Thunderbolt to Ethernet adapter since thunderbolt is my hardware video out? I've never played around with syphon and it seems like a fun option.

https://serato.com/video 

I also asked this question on the Serato Video Forum post about Syphon support: https://serato.com/forum/discussion/1262889#new 

Maybe syphon to quartz composer might work if I can figure out the programing for it would be an option?

[Sam Kusnetz]

Nick Fidalgo wrote:
> Thanks for the quick reply. The Serato Video plugin has syphon
> support. I guess my main question is if I'm sending syphon video over
> ethernet, does it require a computer on the other end with a syphon
> application? Is it just sending data that the other application has to
> encode or is it actually sending a video feed?

Syphon has nothing to do with networking; it's only designed to let
multiple applications running on one computer to share video.

There may be some kind of network-related video streaming software that
uses Syphon, but I'm not aware of it.

>
> OR with a hardware component, what would I need? Would I have to go
> out Thunderbolt to HDMI and use a HDMI to Ethernet box? Or would I
> just be able to use that Thunderbolt to Ethernet adapter since
> thunderbolt is my hardware video out? I've never played around with
> syphon and it seems like a fun option.

Once again, the Mac does not send video over Ethernet. Thunderbolt is
confusing: it's a single connector, but it carries a bunch of different
kinds of signals. When you connect a monitor with Thunderbolt, it's
using the DisplayPort signal. When you connect an Ethernet adaptor, it
only connects to the Ethernet signal in the Thunderbolt connection.

So, even though it plugs into the the same socket, your
Thunderbolt-to-Ethernet adapter has nothing to do with video.

If you want to send video over Cat-5 (or Cat-6, or Cat-7) wiring, the
simplest way to go is to use HDMI out of the Mac and use an HDBaseT
adapter like this one:
http://www.monoprice.com/Product?c_id=109&cp_id=10914&cs_id=1091401&p_id=10225&seq=1&format=2

That particular one requires Cat-6 wiring.

Cheerio
Sam

[Nick Fidalgo]

Thank you very much for the clarification. That really helped me understand.

[Sam Kusnetz]

Nick Fidalgo wrote:
> Thank you very much for the clarification. That really helped me
> understand.

You're quite welcome! I'm glad I could help.

[Billie]

A bit late in this reply to Video over Ethernet but had my first experience of it and it went extremely well. Had to send 2 signals just over 100 feet. Path was Minimac to Matrox Dualhead2go. to two DVI over Cat6 Adaptors. Then 2 runs of Cat6. At projectors the matching Cat6 to DVI adapters into the projectors.  The first cat6 runs were 150 feet each and were too long and poor signal.  100 feet worked fine for run of show. The 2 sets of adapters cost $260. Cat6 $40.
Billie Cox