USB HDMI-grabber

[danielzi]

For Video, any USB camera can be used. Logitech C930 is the most common one for ~100$.
If you have any camcorder or still image camera you get better quality and only need to buy a grabber.
Blackmagic has one for 150$ outputting Thunderbolt - might be possible if your PC has that.

Not tested possiblities (links to amazon.de):

• 85 Eur B07MBSXMH7 Shu One
• 11Eur B088LR7G6H dettelin
• 30 Eur B0895N9KM5
• 78 Eur B00I0QZMPE AVer Media
• 170 Flint B076GXQTJK
  has Linux compatibility: https://www.cloner-alliance.com/help/knowledgebase/how-to-use-cloneralliance-flint-lx-to-record-or-livestream-videos-on-linux
• 180Eur Elgato HD60S+ (Need S+ for UVC driver compatibility) B01DRWCOGA
  Not sure if the H264 compression works on linux or only win/mac
• 130Eur Elgato Cam link prefers compressed HDMI from a camera – or it will stress the CPU heavily. It does UVC. [currently long shipping time]

[danielzi]

testing grabber and camera compatibility on command line

v4l2-ctl --list-devices
v4l2-compliance
ffmpeg -f v4l2 -framerate 25 -video_size 1920x1080 -i /dev/video0 testfile.h264

[Woody]

I’m using these „4K“-USB-Cams on a Windows-System:
https://www.sub2r.com
I know SUB2r are not cheap, but reasonable (around 799$). There’s no need for extra HDMI-Grabber and there are a lot of interesting features e.g. to switch lenses (CS, C or M12-Mounts)