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Sean Meighan
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Understanding Video Effect
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Topic: Understanding Video Effect (Read 1965 times)
jholmes
Newbie
Posts: 4
Understanding Video Effect
«
on:
September 20, 2016, 12:21:16 PM »
Hello!
How does the video effect actually work? I'm having the hardest time deciding what kinds of videos I should download. Do I pay for 1080P or do I stick with NTSC? How does it handle unusually shaped grids? Then there's the "maintain aspect ratio" part of it which really confuses me because you would think a 1080P video would simply cover the whole space, especially if you have less pixels than a 1080P TV.
Thoughts?
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Gilrock
Supporting Member
Hero Member
Posts: 6946
Re: Understanding Video Effect
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Reply #1 on:
September 20, 2016, 12:32:23 PM »
I would only pay for the size that you will actually display on. Like I have a 128x80 matrix so I only pay for the 240p videos. We automatically scale the video to fit the model it's playing on so maintain aspect ratio will shrink it even futher to well..."maintain"...the original aspect ratio. You can google that if you don't know what that means.
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Gary
Full Member
Posts: 105
Re: Understanding Video Effect
«
Reply #2 on:
September 20, 2016, 01:54:56 PM »
jholmes, video projection is something on my radar instead of P10 panels, and I was thinking about video sources (i.e. YouTube?) and editing, etc.
What are these pay sites you mention? Maybe it's time to do some browsing...
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www.diamondcrescent.com
Gilrock
Supporting Member
Hero Member
Posts: 6946
Re: Understanding Video Effect
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Reply #3 on:
September 20, 2016, 01:59:18 PM »
I've bought some from here:
https://www.motionloops.com/
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keithsw1111
Administrator
Hero Member
Posts: 2733
Re: Understanding Video Effect
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Reply #4 on:
October 05, 2016, 01:57:21 PM »
Frame rate adjustment is done by taking the most appropriate frame for the frame time. In your 24 fps at the 20th frame in your 40fps sequence it will show the 12th video frame. In the 21st frame it will show the 12th frame again. We do this so video and audio stay in sync.
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arw01
Full Member
Posts: 191
Re: Understanding Video Effect
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Reply #5 on:
October 05, 2016, 02:29:23 PM »
Keith that looses me..
I would expect it would drop x% of frames. e.g. a 24fps video would drop one every 6 for a 20fps sequence.
on a 40fps sequence vs a 25fps video I would have expected it to duplicate one out of 10 and pick up an extra frame every bit of time to stay there..
Is that what you trying to explain in the 12th frame etc?
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Last Edit: October 06, 2016, 08:13:30 AM by arw01
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keithsw1111
Administrator
Hero Member
Posts: 2733
Re: Understanding Video Effect
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Reply #6 on:
October 06, 2016, 02:31:30 AM »
Thats exactly what I am saying ... and by doing so it stays in time with any audio track which can come from the same video.
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jholmes
Newbie
Posts: 4
Re: Understanding Video Effect
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Reply #7 on:
February 09, 2017, 04:38:13 PM »
And this is why we love you Keith. Because you think of everything
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Understanding Video Effect