[Cin] offtopic: Digitize and record Video with A/D USB adapters

[mnieuw at zap.a2000.nl]

On Mon, 11 Oct 2021 21:47:48 +0200
<mnieuw at zap.a2000.nl> wrote:

> On Mon, 11 Oct 2021 18:41:35 +0200
> "Terje J. Hanssen via Cin" <cin at lists.cinelerra-gg.org> wrote:
> 
> > If available, it could be of interest to get mediainfo output for
> > the format you grabbed?
> > I would be surprised if the Chroma subsampling was better than
> > 4:2:0 (like PAL DV, about 29 Mb/s)  
> 
> I don't know the format, VLC grabbed it and I had it saved as MP4.
>  
> > It seems that Basetech EasyCap BT116 was not on the LinuxTVWiki list
> > (2016) https://linuxtv.org/wiki/index.php/Easycap  
> 
> Maybe, but sometimes the same device by name has a different inside.
> It worked on Linux with VLC.
> 
> > I've also got confirmed from AVerMedia that their CU511B USB3 (full
> > HD) box mentioned just has been EOLed. Their only current solution
> > with Linux driver (for Ubuntu) seems to be  CL311M2 (full HD), which
> > again is a PCIe grabber card.  
> 
> There are also USB HDMI video grabbers, e.g.
> https://www.youtube.com/watch?v=fltt5JhodCE (don't have any experience
> with those). But the german c't IT magazine has tested a number of
> cheap ones, see
> https://www.heise.de/tests/HDMI-USB-Videograbber-mit-Full-HD-Aufloesung-ab-7-Euro-im-Test-5042020.html
> .
> If you are interested, I can lookup the article.
> 
> Mat

c't tested it successfully under Ubunto 20.04 . The devices implement
box-standard UVC (USB Video Class) and UAC (USB Audio Class). Linux
kernels 4.5 and later should be OK.

MatN