Hey there,
Who I am: A piano teacher trying to create videos, where my hands on the piano are in the bottom and an on-screen keyboard highlighting the keys is on top. I'm using VirtualDub to record video from my webcam and a separate program to record screen capture simultaneously. I need to stack both of these videos and they need to be perfectly synced.
Ideally, I'd love to capture the screen and the webcam simultaneously in VirtualDub. If that's not possible, research on the web (this forum also) suggests using AviSynth.
Installed it but confused:
1) After I write a script to stack the videos, what then? Do I open the script in VirtualDub for my final post?
2) Say I get past the codec and video-not-same-width issues, how do I sync the videos? Will I be able to edit them separately in the same VirtualDub?
Thank you for your help.
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Yes. Or any other encoder/editor that accepts AviSynth scripts.
You can use Trim() in AviSynth to remove parts of one video to get them in sync. For example:
Code:v1 = AviSource("video1.avi").Trim(55,0) # remove first 55 frames to sync with video2 v2 = AviSource("video2.avi") StackVertical(v1,v2)
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Thank you for your quick response!
I'm going to try all this later. Will let you know if I need more help...
Cheers -
Hey,
So I have found an open source program that will allow me to simultaneously capture video and screen and audio. Awesome.
(Open Broadcaster Software if anyone wants to know).
Now all I want to do in VirtualDub is to black out the bottom 30% or so of the video so the focus is just on my hands on the keyboard. Tried using the resize filter but either I don't understand it (most likely) or it's not what I need to use.
-Andy -
In avisynth, if you want to black out a side you can do this. Virtualdub will accept and use avisynth scripts.
Blacking out the bottom example:
Code:crop(0, 0, 0, -100) AddBorders(0, 0, 0, 100)
http://avisynth.nl/index.php/Crop
http://avisynth.nl/index.php/AddBorders
Open Broadcaster Software is awesome.
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