Virtual screen on OBS ?

[andrew_ysk]

Hii,
I have virtual camera on OBS, super good feature.
I am hosting a Jitsi session that has got a dozen of participants. I used OBS virtual camera feature, so that Jitsi participants see output stream that i have composed instead of raw video stream (be it from webcam or shared screen).

Is there also virtual screen on OBS ?
Why virtual screen: I am thinking virtual screen can act as virtual display device (like a monitor), hence we can trick "powerpoint slide show" into project into that virtual monitor. We can resize it small, and place the virtual monitor on main screen (so that it won't occupy the whole 2nd monitor). Then can use OBS to grab it and arrange in OBS.
With Virtual screen, we might can "detach" vlc video output to be show on a virtual screen, then use OBS to grab it and arrange in OBS.

Application of it is:
*Imaging watching karaoke in jitsi session.
1. upper portion of display is video clips;
2. lower portion of display is song lyrics caption using powerpoint slide show projected to other screen
3. i shared mp3 at the same time,
4. i also grab a video stream using browser session using obs "browser" feature ( of a participant/ singer of jitsi session)...
all these 4 to be display on a screen / jitsi session

 

[andrew_ysk]

My current situation:

I shared 2nd screen to jitsi session, so anything on 2nd screen will be seem by jitsi participants.

I share mp3 to jitsi;

and I do powerpoint slide show (F5) of song lyrics caption onto 2nd screen (while doing control on main (laptop) screen. )

**However powerpoint presentation will occupy the full of 2nd screen, hence i can't play video clip on 2nd screen, unless i make vlc "detached" video output to be "Always on top" (but disadvantage to this method is: after each video file ended, the video output will disappear and when play new video one will have to redo "always on top" again)..



My song lyrics caption is only 1 line at the bottom of screen, the whole upper area of screen 2 is all pitch black (nothing shown - so dull). If i can put vlc video clip that related to the song on the upper part of the 2nd screen it would be more "alive".

So far i can only share 1 thing at a time, either mp3 + powerpoint presentation or vlc video clip. It would be great if able to share both simultaneously.

 

[andrew_ysk]

I tried this method but does not work out:

I run virtual camera on OBS.

In jitsi session under : Setting > Device > camera - OBS Virtual camera .. Now whatever on OBS preview, will be the things the jitsi participants see.
Hence i can compose all video streams (one of the jitsi speaker/ participant) and vlc video stream, and powerpoint slide show onto 1 output stream so that all participants in jitsi able to see it all simultaneously.

OBS "browser" feature is not working in jitsi session (it does not display video of participant most of the time)
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OBS has got ability to include "browser" as source. However it has bug, so very unstable for my purpose. I used this "browser" feature to login into the jitsi session and grap the video stream of a Jitsi participant (speaker/ singer).
**Don't know how this "browser" source in OBS works: Does OBS able to capture from installed browser or OBS itself is has capability to browse
**so far obs "browser feature" sometime able to show video of participant, sometime none of jitsi participant video will be shown - appears to be bug, no idea the problem is with browser installed on my windows or with OBS.


OBS "window capture" feature is not good to use (it capture everything that "overlay/ float" on top of the target window as well)
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I tried to use "OBS Window Capture" to capture vlc video output (detached from main vlc window). I realizeds that any partial of any software window overlayed on the target window will be capture by OBS as well.
**my main screen is so crowded already.. i don't have enough space for all application window to have proper "parking" space without other window crowded onto it.
Hope that OBS team able to fix this, so when capture a window, OBS will only capture that particular window (not any other window that overlay on the window)..

Note:
**(laptop main screen is reserve for control purposes, like control of vlc, control powerpoint, control of obs, control of meeter banana, file manager to select ppt file, mp3 file, wmv file to play)

 

[loresini]

Hello, not sure if you already figured this out but it seem like you need to create scenes with each of those elementd... Like a scene that has Jitsi and ppt.... Also if just using one laptop you could add another display either a monitor or virtually.