Qlab 3 video black border around video Q's

[Mathew Baranow]

When I add a video into Qlab and set it to fill the screen I seem to get a black border around the image 1080 Pro Res files and 1080 output all round. MacBooks, Mac Minis and Mac Pro's into many different screens, mixers and direct into projectors tried, all give the same result. lower res file fill the screen happily.

[Dave "luckydave" Memory]

On Wednesday, November 6, 2013 at 6:48 PM, Mathew Baranow wrote:

When I add a video into Qlab and set it to fill the screen I seem to get a black border around the image 1080 Pro Res files and 1080 output all round. MacBooks, Mac Minis and Mac Pro's into many different screens, mixers and direct into projectors tried, all give the same result. lower res file fill the screen happily.

Are you sending to 4:3 screens, and getting a letterbox effect? This sounds like an aspect ratio mismatch to me.

-- 

luck...@figure53.com 

[Mathew Baranow]

No, 1920x1080 16x9. the border is around the entire image not just letter box pillars

[Dave "luckydave" Memory]

On Wednesday, November 6, 2013 at 6:55 PM, Mathew Baranow wrote:

No, 1920x1080 16x9. the border is around the entire image not just letter box pillars

Is this with single-screen surfaces? Have you edited the surface at all?

What happens if you use custom geometry instead of full screen?

-- 

luck...@figure53.com

[Mathew Baranow]

It is with a single screen surface and I have not edited the settings at all, the defaults are correct and the Qlab test grid fills the screen correctly.

When custom geometry is selected and the settings are not adjusted the images shrank slightly, about %2. when the settings are changed I am able to fill the screen.

This is the solution I have been working with however, it does seem quite inelegant and broken.

Thank you for your time, it is much appreciated.

[Dave "luckydave" Memory]

On Wednesday, November 6, 2013 at 7:09 PM, Mathew Baranow wrote:

It is with a single screen surface and I have not edited the settings at all, the defaults are correct and the Qlab test grid fills the screen correctly.

When custom geometry is selected and the settings are not adjusted the images shrank slightly, about %2. when the settings are changed I am able to fill the screen.

This is the solution I have been working with however, it does seem quite inelegant and broken.

My next guess is there's something in the pixel aspect ratio that's not matching from your content to what the projector is expecting. I don't know what would cause this, and I've never heard of it before, so really, I'm just guessing here.

-- 

luck...@figure53.com 

[Mathew Baranow]

has anyone else noticed this?

[playgroun...@gmail.com]

Matthew, did you find a solution. I'm experiencing this too and for the life of me can't figure out why!

Cheers,

Beth

[micpool]

That will be the very confusing 'add clean aperture information' 

Mic

[micpool]

The most common cause of the clean aperture information problem in QLab is encoding in Apple compressor, with the default setting of the clean aperture checkbox ticked, in the encoder tab of the settings window for the clip. Unchecking this will give you files that will size as expected.

To confirm this is the problem open the file in QT Player. If there is another pixel size in brackets after 1920x1080 i.e (1888x1062) then the encode is with clean aperture.

Ideally QLab would avoid this by rendering full screen using the production aperture i.e 1920 x1080 but that wouldn't be backwards compatible  with shows that have used custom geometry to scale up clean aperture clips to full screen.

Mic

[micpool]

For those playing along at home, the attached is a couple of short very boring  movies one rendered with clean aperture one without.

Mic