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Turn One Camera into Four HD Cameras for Live Video Production
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desmar  
#1 Posted : Monday, June 6, 2016 12:01:18 PM(UTC)
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Turn One Camera into Four HD Cameras (480, 720, 1080 etc...) for Live Video Production similar to what datavideo is doing.

http://www.datavideo.com/us/article/Turn+One+4K+Camera+into+Four+HD+Cameras+for+Live+Video+Production

Without having to create 4 separate virtual inputs and individually crop them manually... that would also work with PTZ cameras...

Crop all 4 squares in original camera input and have 4 virtual camera inputs created automatically with the touch of one button.
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madness  
#2 Posted : Monday, June 6, 2016 12:41:53 PM(UTC)
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From what I can tell, they are still virtual cameras, just presented in a different way to the user.
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desmar  
#3 Posted : Monday, June 6, 2016 2:28:21 PM(UTC)
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Yes, but they crop on the original camera input and not on virtual camera inputs, crop in one location/setting at once instead of 4 different location/settings screens...
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madness on 6/6/2016(UTC)
madness  
#4 Posted : Monday, June 6, 2016 2:33:21 PM(UTC)
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Thanks, I did get that!
So you are asking for a change in the way we currently configure a virtual input from an existing input in the vMix interface.

I could +1 that request also.
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desmar  
#5 Posted : Monday, June 6, 2016 2:48:42 PM(UTC)
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No not change the way it is done, but another way to do it, with a few simple crops and 1 button click...

Could be 1,2,3,4,5, etc... crops to 1,2,3,4,5... virtual inputs of the primary camera inputs...

Could be a time saver setting up shots.... from 1 location/setting... instead of multiple locations/settings..
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madness  
#6 Posted : Monday, June 6, 2016 2:58:02 PM(UTC)
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I'm still on board!
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Lennart  
#7 Posted : Thursday, June 9, 2016 5:01:59 AM(UTC)
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This is already possible in vMix :)

What I would do is first of add the camera as a source and add 4 transparent inputs (you can find it under color), add the camera to each transparent input in the multiview and zoom in as you wish.

That way you can use merge to do transitions between the different views.

But do remember that doing this doesn't magically improve the video quality. Doing digital zoom will always make the quality suffer. You can compensate for it by using a 1080p camera on a 720p canvas or even better a 4k camera on a 720p/1080p canvas.
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madness  
#8 Posted : Thursday, June 9, 2016 1:15:00 PM(UTC)
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Lennart wrote:
This is already possible in vMix :)

What I would do is first of add the camera as a source and add 4 transparent inputs (you can find it under color), add the camera to each transparent input in the multiview and zoom in as you wish.

That way you can use merge to do transitions between the different views.

But do remember that doing this doesn't magically improve the video quality. Doing digital zoom will always make the quality suffer. You can compensate for it by using a 1080p camera on a 720p canvas or even better a 4k camera on a 720p/1080p canvas.


Yeah, we both know this. He's asking for an alternative method with a simpler interface to do it with.


desmar wrote:
No not change the way it is done, but another way to do it, with a few simple crops and 1 button click...

Could be 1,2,3,4,5, etc... crops to 1,2,3,4,5... virtual inputs of the primary camera inputs...

Could be a time saver setting up shots.... from 1 location/setting... instead of multiple locations/settings..



I already do this Lennart, with a 1080p webcam in portrait mode, to use with various height speakers at a podium. Taller people get the top position, short people the bottom, and those that are average "just right" height get the middle. ;) Merge transition works very well for this to give a sense of camera movement, without any at all. It would be nice to have a way to simply drag the view box up or down to quickly adjust to a new position, and click apply to merge to the new position without fiddling with the position controls that give instant responses.

Think of it like editing an object in Photoshop, where you drag the position of the "virtual input object" position, and then grab a corner to resize the input, and click the checkbox to accept the new location/size of that input object.
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mjgraves  
#9 Posted : Tuesday, June 14, 2016 10:47:27 AM(UTC)
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I would very much like to see an improved way of entering precise numbers for cropping, zooming & repositioning.

It's much better to have crop expressed an X,y coordinate pairs. Of course, that related to the source size. Since you can be using various source and target frame sizes, even at the same time, it might get fiddly.
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hubert17  
#10 Posted : Monday, June 20, 2016 11:55:46 AM(UTC)
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This would a great addition to vMix. Having a 4K/1080 fixed-position camera cropped to 4 virtual 1080/480 camera is big +1.
Might as well to have a dialog/editor for cropping/panning.

UserPostedImage
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Wayde  
#11 Posted : Tuesday, July 12, 2016 3:39:31 PM(UTC)
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+1

Great Idea.
I have added a feature request today, 7/11/16, for virtual PTZ control within the 4K image.
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