[ANSWERED] Best way to take in 4 live camera feeds
If you were going to take in 4 live camera feeds from 4 camcorders to make use of isadoras 4 live input channels... what would be the best way to do that? Would it really be to just find a way to plug 4 separate capture cards into my computer? Is there a more efficient piece of gear that can accommodate this? To be clear, I'm not looking for a switcher which would provide access to the 4 cams through 1 input. I need 4 individual feeds that I can mix together in real time with izzy utilizing the 4 separate channels. Thanks!
@weston I am not aware of any capture device that supports multiple streams.
One option that I might consider is hardware that tiles your 4 inputs into 1 input so that you only require 1 capture card. Then in Isadora create an user actor that chops down the stream to provide your 4 individual feeds.
Hard to say what would be most efficient, but I feel chopping video on the GPU is pretty light weight.
We're setting up 4 capture devices might be more difficult.
Hi there @Weston,
Personally, I would use a Desktop PC with a Decklink card. See https://www.blackmagicdesign.c... for more information. For the situation that you sketched above, a Decklink Dou 2 would do the job just fine. Using some Blackmagic Mini converters to convert your HDMI signal (since you talked about Camera feeds, they likely have Mini HDMI / HDMI output) to SDI.
But like always with these types of stuff, test test test!
CitizenJoe last edited by
I'm pretty sure that Matrox does a capture card with 4 inputs...
right.. I'm so laptop centered.. I didn't even consider a desktop, but yes a desktop is likely the best route.
For a more portable set-up, I built a 4- channel HDMI capture box using a Magewell quad HDMI card and a Sonet Thunderbolt 3 enclosure
The Magewell card I have is an older model that was cheaper than the current model
There are other cards that can work as well, such as this for $500
The Sonet Enclosure seem to be the most compact and costs $250
Alternatively, you can get a 4k USB capture adapter and a 4k multi-view box for $200.
This USB Magewell dongle captures 4k 60 USB
This multi-viewer takes 4x 1080 inputs and arranges them into a 2x2 split-screen output at 4k 30. I don't have a 4k capture card but the box I have works fine with my 4k monitor.
Fred last edited by Fred
@weston I have a Blackmagic duo 2, it can do 4 3g sdi inputs simultaneously and works perfectly with Isadora. Make sure you put it in a proper pcie 8x slot , many motherboards share resources so even though you may have a slot marked 8x free it might not operate at 8x when you use other devices as they share bandwidth. Apart from tricky motherboard specs it works perfectly.
Bennnid last edited by
Hi, if you don't need the 4 flux at the same time , or just crossfade 2 of them, Atem Mini would work for that, you can remote control it with ATEM osc to switch cam,
curious to have your feedback on your choice !
Hi there ! I marked this question as answered. If you still have any questions, feel free to reply here and we will help you out :)