Hello,
I'm trying to mix some videos in real-time and i have one long video always running in the background with smaller videos which i manually overlay at times. When they finish, they should disappear and show the background video but they just remain there paused in the last frame.
I can achieve it manually, of course, but i would prefer it done automatically. I tried with different 'onCompletion' triggers but to no avail.

Thank you for the reply. However, i did not understand much and got even more confused.
Let's put it a different way: what is the easiest way to achieve an automatic transition from the overlay to the background video?

A work around may be to design your overlay clips with one second of video at the end containing a period in the corner with 100% transparency applied to it.

The video will still be pausing at the end but the overlay would essentially be overlaying nothing.

not all that elegant but functional.

OK, I stand corrected.
Thanks dark_ata, I was not aware of the "OverlayInput#Out" function, it will transition out with the preset transition for that 'Overlay' channel.
So, to clarify, the first method I allude to above in using 'timed' overlays, as per dark_ata's suggestion, requires a three step process.

1. Confirm the length of your desired video clip for Overlay
2. In Background Video Input, set up in "Triggers": OnTransitionIn / OverlayInput#In / Input (desired video) / Duration (n/a) / Delay (milliseconds to hold before action)
3. Add a second Trigger: OnTransitionIn / OverlayInput#Out / Input (n/a) / Duration (n/a) / Delay (in milliseconds, the length of the video clip)

Also as indicated above, this would be a tedious process to set up for each video you had and probably not worth the effort if you are doing this continually, but the point is, it can be done.
The second method I describe would be much better for doing this by relying on the "OnCompletion" function for each video.


Ice

I thought I kinda did that, lol...

And, in your situation, I don't think it's all that easy to implement overall.
Never-the-less, the "OverlayInput#Off" command or function in "Triggers" turns off the overlay in question with an abrupt "Cut", whereas, the "OverlayInput#Out" will transition the overlay out in the same manner that it is set up to transition In (fade, wipe, etc. as set-up with the master 'Overlay' settings Button at lower right of GUI).
Once again, these "Triggers" need to be set up in the 'background video' Input and would need to be timed to match the length of the video clip you are overlaying.
I wouldn't recommend doing it this way as you will have to be constantly setting and re-setting it up for each video.

If you are intent on doing this in an automated fashion with multiple videos, if I have understood you correctly, then I would try to do it with the "MultiView" and "Virtual Input" suggestion I made above. The set-up is more elaborate to start, but the functionality in the end is far more conducive to what you are attempting.
I would be happy to work out a Step-by-step procedure if need be, it's really not that complex once you understand how to do it.


Ice

Sorry to hear that ionitzabong, from what you describe about your requirements, I was able to accomplish overlaying a video and once it completed transition back to the BG video automatically (using the MultiView/Virtual Input method I first presented) as well as using a timed "Overlay" as described with "Triggers".
From the image you present of your "Triggers" set-up, I would expect that the "SAMPLE-playSD.mkv" input will be overlayed 1/10th of a second after you transition to the Input for which the Trigger is set (I assume your BG Video Input).
68 seconds later, the overlay should transition out (revealing the original Input for which the "Trigger" was set, i.e. your BG Video).
What was the behavior you saw?


Ice

@ ionitzabong

BG video = Background video

Let's try and figure out why it's not working for you...
It sounds to me like you might have set-up the "Trigger" in the wrong Input.

This should be what you've done to set things up:

You have 2 video Inputs, Video 1 (BG Video) and Video 2 (SAMPLE-playSD.mkv).
You set up the "Trigger" feature as illustrated in your image for Video 1 (clicking the cog wheel of the BG video Input).
The resulting behavior will be that when you transition to Video 1, Video 2 will almost immediately transition IN as 'Overlay 1' (100 milliseconds or 1/10th of a second in) and play for 68000 milliseconds and then transition OUT.

If you set-up the "Trigger" in Video 2, then essentially it's overlaying on itself, so when it's done 68 seconds later it transitions OUT to itself and stays on screen indefinitely or until you transition to another Input. The key thing to watch for is whether the "Overlay" button comes on and turns off in this scenario, which will indicate that the "Trigger" function is working properly, you just have it on the wrong Input.

The Interface may seem to be "Counter-Intuitive" until you understand exactly what's going on and then it all makes perfect sense, it's actually very logical, the problem is, we sometimes get ahead of ourselves and expect the computer to keep up to our way of thinking, unfortunately, computers are dumb and need to be told exactly what to do and probably why Martin has set things up the way he has, it's very methodical and practical, you just have to keep it all in perspective and realize what "layer" is being applied where, once you grasp that you will begin to see the real power that is built into vMix. You will also see how impractical it will be to set-up your videos with this type of "timed" overlay trigger. (I still recommend using a "List" with "MultiView" as described earlier, but it requires a better understanding of the software and it's feature set to implement properly)
I would really like to see this work for you (as I know it can), I'm just trying to understand why it's not working for you.


Ice

If this is not the case, then please explain what you've done step by step.

No.
The "Trigger" feature is a way to "automate" certain actions or behaviours every time you transition to that Input.
In this case, the action is 'triggered' whenever you transition to Video 1, namely, the action of overlaying Video 2.
('OnTransitionIn' refers to Video 1)
The 100 milliseconds is the 'Delay' before that action takes place. If you set that to 3000, Video 1 would play for 3 seconds before Video 2 automatically 'Overlays' and plays.
There is no need for you to manually activate or overlay Video 2, it should automatically be triggered to overlay every time you transition to Video 1 with this 'Trigger' set-up.
(again, this would prove to be a pain, continually having to re-adjust every time you wanted to play another video, but once you understand the mechanics of it and get this to work, it will be easier to explain what I think is the best way to set this up).


Ice

@ ionitzabong

I know, and why I suggest setting up a "List" Input with 'MultiView' and a Virtual Input...
It will work awesome for you, automatically transitioning back to Video 1 once Video 2 completes, but I'm not sure you've grasped the workflow of vMix yet and I don't want to confuse and frustrate you further.
I can try to itemize a step-by-step procedure, but somehow my attempts to get the above "Trigger" to work for you has not been very fruitful yet so I am hesitant to take the next step.


Ice

How many videos for overlay do you have?
We can try one set-up for all or just a modest set-up with 3 or 4 to grasp the concept.


Ice