1 HN user recommended this demo1 month2020–2023score 1
Years with an HN recommendation, 2007–2026
Commenters cite it as evidence that a roughly $12-20 HDMI-to-USB capture device is good enough for many uses, such as digitizing video or using a camera as a webcam.
EposVox reviews a very cheap USB 2.0 HDMI capture dongle sold under names like BlueAVS/Goodan, testing whether it works as an alternative to the Elgato Cam Link. He covers its quality and limits for webcam-style and camera capture use.
“At this point I would just buy a $12 HDMI to USB dongle and side step the need for any of these apps.” (HN, 2020)
At this point I would just buy a $12 HDMI to USB dongle and side step the need for any of these apps. Way better, no new software required, no OS specifics. Ex: [this video]
Suggests a cheap HDMI to USB dongle instead of software workarounds.
I use a similar setup with a Panasonic GH5 I already had, but I bought one of those €15 Chinese HDMI capture USB UVC cards [1]. These work surprisingly well, and I've had zero issues using them for ~4 hours back-to-back Zoom meetings on my MBP. They've also received some good reviews on YouTube [2]. For audio, I use my Airpods. Great setup for meetings. Latency is good enough IMO. -- [1]: [link] [2]: [this video]
This might be implementation dependent. MJPEG per se is not bad as you make it out to be. Example reviews: [this video] and many more. They all boil down to the same thing: excellent device, even with MJPEG. Obviously it's more dependent on what you use as camera, than the encoding method.
Example review showing MJPEG devices work excellently.
Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.
5 Hacker News comments
From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.
Citations, criticism and jokes