Sounds to me like you need a static detector instead of a dynamic one. "This area not empty" instead of "this area changed." I haven't used the machine vision part of Adv. SS, but maybe you can give it a picture of an empty track to compare to, along with a detection area? (might be in the same picture, depending on how it actually works)
Resource icon
- Thread starter Warmuptill
- Start date
Warmuptill
Active Member
I agree with @AaronD.
Instead of using the "has changed" check type using "matches pattern" might yield better results.
The pattern would be the background where the alarm should be triggered (without any snail).
A macro would then trigger if a snail ventures into the given area of the screen and thus the pattern no longer matches the empty background.
An example of using the pattern matching can be found here:
Activate overlay to hide parts of the screen
An automated scene switcher for OBS Studio. Contribute to WarmUpTill/SceneSwitcher development by creating an account on GitHub.
github.com
I must admit I could have never imagined the plugin being used for something like this when I created it and that kind of made my day!
So thanks for that! :D
Let me know if you have any questions!
MattEatsMochi
New Member
There's also an If Not option...
Héraès
Member
@kdarroch
Do you know this plugin ? It is supposed to do a part of what you want : it allows you to push a key to write the content of the replay buffer, and also to switch to a scene (in wich you can play the replay as a media source). It allows delay, to let the buffer to be written.
I don't know if that's what you want, given that you talked about detecting on-screen changes, but hey, I prefer to try ;)
Héraès
Member
@Warmuptill I don't find the "Scene group" tab in your plugin, as you talk about it here : https://github.com/WarmUpTill/SceneSwitcher/wiki/Scene-groups
I just have two tabs : General, and Macro.
EDIT : oh, I just found the "Hide tabs wich can be represented via macros" checkbox.
I just have two tabs : General, and Macro.
EDIT : oh, I just found the "Hide tabs wich can be represented via macros" checkbox.
jedi34567
New Member
Just realized that maybe I posted in the wrong forum, but info about my OBS core dump after installing Advanced Scene Switcher is here: https://obsproject.com/forum/threads/advanced-scene-switcher-install-causes-obs-core-dump.164246/
There's a "Go to download" button at the top right of every plugin page: Overview, Forum Discussion, etc. That gets you the latest version. I would not be surprised at all if the repo version is so horribly out of date that it doesn't even run.
Case in point: OBS in the Ubuntu 22.04 repo is version 27. We're on version 29 now, and from 27 to 28 is a major graphics update that breaks almost everything, both upgrading and downgrading. Add the OBS-specific repo to get v29, and then the up-to-date plugins (from the download button here) will work too.
Case in point: OBS in the Ubuntu 22.04 repo is version 27. We're on version 29 now, and from 27 to 28 is a major graphics update that breaks almost everything, both upgrading and downgrading. Add the OBS-specific repo to get v29, and then the up-to-date plugins (from the download button here) will work too.
Warmuptill
Active Member
Warmuptill updated Advanced Scene Switcher with a new update entry:
Projector action and fixes
Read the rest of this update entry...
Projector action and fixes
Additions:
- Added an action to open projector windows of sources.
Changes:
- The "Perform actions only on condition change" setting will now also be highlighted if an action was...
Read the rest of this update entry...
khaver
Member
The pattern matching macro seems to not work if matching to a solid black area of the video source. I'm trying to detect when a person is not at a podium. The stage behind the podium is black. If I restrict the area to check just above the microphone, a black area, the pattern (solid black) is never matched. It seems there must be some variation in the area to be checked in order for a match to be found. I do not want to include the microphone in the check area in case the camera or microphone is moved slightly.
Is there any workaround for this? Thanks.
I'm using v1.17.7. (I can't upgrade from OBS 17.2.5 at this time)
Is there any workaround for this? Thanks.
I'm using v1.17.7. (I can't upgrade from OBS 17.2.5 at this time)
Warmuptill
Active Member
The pattern matching algorithm does not work when providing a solid black pattern as there are no features the check for in the given pattern.
As you seem to be testing for a solid black area would it not work to check if a given area has not changed for X amount of time using a condition similar to this? (The exact values are of course only examples)
I hope all of the required functionality was already implemented in the particular version you are stuck on.
khaver
Member
@Warmuptill I think that will work. Thanks.
So we can't check for "not black"?
I can see a potential problem with this, as some people may stand still enough to fool a motion-based thing. (I've seen some that are practically statues in front of an audience) But if it works in practice with the actual people involved, then I guess it works.
Ah lol, I see this was answered "The pattern matching algorithm does not work when providing a solid black pattern as there are no features the check for in the given pattern." How can I make it so i can match a pure black AND similar colors?
Also, does adv-ss load the selected file again if I overwrite the file?
Warmuptill
Active Member
The size can be the same or smaller than the selected area.
If the pattern is larger than the video source / selected area a match cannot be found.
No, the plugin will only reload the file on "startup" / when changing the path to the file.
The current algorithm does not really allow an emphasis on only color similarity.
I will try to investigate if there is an alternative approach to handle this use case as well (I assume there is).
Thanks for the suggestion!
I will add it to the todo list.
Unfortunately I am rather busy at the moment and cannot really spend much time on the plugin, so I can't promise that I will get around to it soon.
Last edited:
Here is a TIP I recently figured out.
The match pattern works so much better if you have the pattern you are trying to match in the area where you want to look and instead of use existing file use the screen capture option to create the file exactly the size of the area you set. Just need to set the area first and then go back up and create the matching file using the screen capture option.
works really well.
kirk
I don't know what happen with this last update but this just simply doesn't work for me any more.
I had all my scenes set up correctly with each scene fading audio with timed transitions and all.
Now nothing works properly for me.
I have been sitting here for 6 hours trying to fix this and not a chance!
I give up ,I'm tired.
I had all my scenes set up correctly with each scene fading audio with timed transitions and all.
Now nothing works properly for me.
I have been sitting here for 6 hours trying to fix this and not a chance!
I give up ,I'm tired.