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Linux video capture cards
(pawb.social)
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
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Yes, internal consumer capture cards are not really supported on Linux, the manufacturers just don't care so no Linux drivers are available.
That's why I have gotten myself a prosumer grade card from Blackmagic. https://www.blackmagicdesign.com/products/intensitypro4k
Or you could use USB Capture Cards which are better supported, because most of them act like a USB camera, using the same protocol which eliminates the need for drivers, but they often are more limited or have a worse picture quality then internal cards.
I converted our whole congregation to Linux, and we use a BlackMagic ATEM for streaming over OBS:
https://www.amazon.com/Blackmagic-Design-Switcher-High-Speed-10-Pack/dp/B087D7FLBG/
At first we started with a cheap single input capture card and it worked great:
https://www.amazon.com/gp/aw/d/B07JLCJF96?psc=1
I use the same card (Intensity Pro 4k) to digitize videos. Worth every penny.
Wait, so you're saying that this card WILL work on Linux?
Yes, it does perfectly fine here. Blackmagic is known for its Linux support