# Multi-channel video NDI livestream

**URL:** <https://forum.core-electronics.com.au/t/multi-channel-video-ndi-livestream/13654>\
**Category:** Videos\
**Created:** [4 April 2022 01:07 UTC](https://forum.core-electronics.com.au/t/multi-channel-video-ndi-livestream/13654 "2022-04-04T01:07:52Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Allison194745](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/allison194745/32/6517_2.png) [@Allison194745](https://forum.core-electronics.com.au/u/Allison194745)\
**Post date:** [4 April 2022 01:07 UTC](https://forum.core-electronics.com.au/t/multi-channel-video-ndi-livestream/13654/1 "2022-04-04T01:07:52Z")

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Hello,

I’m trying to make a multi-channel video installation with 4x Raspberry pi 4 models.  
For the final exhibition, I’ve been able to setup the loop and sync video system by connecting the raspberries with a switch and using MP4Musuem (which is a great tool for video artists). [https://mp4museum.org/](https://mp4museum.org/)

At the moment, I would like to make changes live during installation tests. In my video editor, I have put the 4 videos into 1 (imagine 4 tiles on 1 screen) for ease of editing. So I would like to stream from my video editor and split the image 4 times so the raspberries will play different parts of the same video. I have setup up a program called Dicaffeine which allows NDI from my computer to the raspberries. I just don’t know how to split/crop the video when the raspberries recieve it. [about [Dicaffeine]](https://dicaffeine.com/about)

Is there something like the Pi wall effect but with NDI live video?

(I have very limited experience, but have an IT friend who can help out).

Thanks so much,  
Allison

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**Author:** ![Liam](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/liam/32/3562_2.png) [@Liam](https://forum.core-electronics.com.au/u/Liam)\
**Post date:** [6 April 2022 06:51 UTC](https://forum.core-electronics.com.au/t/multi-channel-video-ndi-livestream/13654/2 "2022-04-06T06:51:00Z")

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Hi Allison,

Welcome to the forum!!

Very interesting project! I noticed that UVC is an option as an output, I’d take a look at using OBS’s(Open Broadcasting Software) UVC output (I’ve fiddled around with it a little but only within my PC).

Depending on your graphics card you might be able to emulate a virtual monitor using a [HDMI dummy plug](https://core-electronics.com.au/hdmi-dummy-plug.html).

I’m not 100% sure what the best route might be here!  
Liam

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<div class="post-metadata">

**Author:** ![Allison194745](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/allison194745/32/6517_2.png) [@Allison194745](https://forum.core-electronics.com.au/u/Allison194745)\
**Post date:** [6 April 2022 11:51 UTC](https://forum.core-electronics.com.au/t/multi-channel-video-ndi-livestream/13654/3 "2022-04-06T11:51:30Z")

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Thanks for the suggestion Liam.

I’ll look into OBS and will continue searching for other programs that can facilitate this setup.