Vmix Hidden Colour Bars

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G8DKC
Posts: 268
Joined: Thu Jun 28, 2012 9:39 am

Vmix Hidden Colour Bars

Post by G8DKC » Sun Sep 11, 2016 11:29 am

Life can be too short, but I'm intrigued that Vmix retains it's default colour bars when Txing,
with Datv_Express windows software, and Vmix not running, same Adobe Flash Media Live Encoder.

Have had a look around in various dark corners for a hidden test card image etc, and a clue as to how it's done.
It's a good idea that it's there, but great to change to a personal test card.

73

Peter
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Vmix Colourbars.jpg
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G8DKC
Posts: 268
Joined: Thu Jun 28, 2012 9:39 am

Re: Vmix Hidden Colour Bars

Post by G8DKC » Sun Sep 11, 2016 6:17 pm

I had just been playing with Process Explorer and found vMixVideo.ax had been called when "Datv Express DVB-S Transmitter" selected Vmix
even when Vmix not running.

But thanks to Dave G0EID, an Email arrived at about that moment with helpful suggestions :-)

Probably not be able to take this any further, but at least I know what's happening, so worthwhile asking.

vMixVideo.ax being the culprit.

Attached image he sent to me.

73

Peter
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vMinColourBarsGraph.jpg
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KenW6HHC
Posts: 309
Joined: Mon Jun 01, 2009 4:20 pm

Re: Vmix Hidden Colour Bars

Post by KenW6HHC » Mon Sep 12, 2016 1:20 pm

One of the features of vMix is that you can select the "video input" from a IMAGE file. I used a JPEG test pattern that I had created.
For an example, see the third figure in the DATV-Express Project Update report for August....in the DATV section of this Forum.
Another video input selection produces a "slide show" by choosing PHOTOS. I think these two ADD INPUTS will allow you to do what want to do.

Have fun...de Ken W6HHC

G8DKC
Posts: 268
Joined: Thu Jun 28, 2012 9:39 am

Re: vMix Hidden Colour Bars

Post by G8DKC » Mon Sep 12, 2016 7:19 pm

Hi Ken,

Have just checked out your Jpeg, I think I'm going to be using vMix most of the time I'm on air, it's addictive :-)

My last few posts were that if you select vMix in the capture video box of Datv Express Transmitter.exe

without vMix actually running you get a test card, just tick video indent for a quick transmission.

Me being nosey needed to know how that worked, and vMixVideo.ax was the answer.

Datv_Express usage must have gone off the scale, thanks to you, the team, and Charles's Datv Express Transmitter software.

73

Peter

G4GUO
Posts: 729
Joined: Tue Feb 16, 2010 12:51 pm

Re: Vmix Hidden Colour Bars

Post by G4GUO » Mon Sep 12, 2016 8:11 pm

Dare I say it but vMix supports animated GIFs now......

- Charles

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