Easycap is a USB devices that capture any devices that support AV Cable such as Gaming console, DVD, DVB, etc. And running it at PC/Laptop monitor. There are many easycap version. Some of them will work and another will not work on Archlinux. To see what easycap that can work you can see on linuxtv sites.
Here's the url:
https://linuxtv.org/wiki/index.php/Easycap
Several days ago, i bought easycap that like these pictures:
Before you using easycap, makesure you have install vfl-utils, and VLC.
$sudo pacman -S vfl-utils vlc qt4
qt4 needed for VLC GUI
Here's the lsusb for that easycap product:
Well it's not on the linuxtv list, but nevermind just try it. Open up the VLC.
1. Choose Media
2. Open Capture Device
3. Select Video Device and Audio Device
5. Expand "Show more options"
6. If you want to playing gaming console set the caching to 160, by default it will be lag. Under 160ms for some laptop/pc the sound will disappear.
7. Choose play.
8. Then here's the snapshot. I was playing Choroq on Playstation 2 Consoles.
9. Done.
That's it enjoy easycap on archlinux.