edit: cant insert attachments...
i went on and bought one of these 4 in 1 80$ capture cards on ali, since it seems to be pretty advanced when seeing the pcb compared to most usb-dongles.
<- firefox png
https://de.aliexpress.com/item/1005003727496316.htmlit turns out to be pretty good, it works on Android, it supports up to 60fps and image quality is.. probably limited by my source device anyways.
heres a ezcap 2.0 usb (STK1160 based) for comparison (in OBS)
<- obs64_uDZxxxxx
its output is very compressed, i get a lot of jpeg artifacts in the android app. at least it works on a mobile device.
heres a AverMedia Ezmaker 7:
(which i had to screenshot in vlc since it just didnt work in OBS. doesnt work on android either. high contrast edges are quite sharp, but whats the point of a good device if it doesnt work where you need it.)
its using a Conexant CX23012-11Z as found in many devices
https://linuxtv.org/wiki/index.php/Conexant_CX2310x but it has some speckles, slight glitches. maybe psu related? ive added caps and shielding but it didnt fix it.
<- vlc_q9xxxx
and heres this 4 in 1 capture card
it works well in android, has lots of resolutions and framerates to chose from. up to 1920x1080 and up to 60fps, even uncompressed at lower resolution.
it even supports the 50hz PAL coming out of my thermal imager.
quality is like the avermedia id say. without artifacting.
<- obs64_bdxxx
ill try some videos on the usb camera app soon if its still heavily mjpg compressed as with the ezcap. and if its worth it at the 10x price.
edit2:
screenshots made on the android app
1190.jpg is ezcap, 9290.jpg 4 in 1.
IPC_2023-04-23.12.24.27.1190.jpg (22.3 kB. 720x576 - viewed 47 times.)