v4l2src Can Not Use PAL-B Correctly

[Nicolas Dufresne]

Le mercredi 04 septembre 2019 à 05:37 -0500, Osman Berk a écrit :
> Hello,
> 
>  v4l2-ctl --device=/dev/videoX -s pal-B
> 
> I do use this command, however it does not fix the video footage totally.
> 
> The output is same as v4l2src norm= PAL-B.
> 
> What might vlc be doing with selecting signal as PAL-B, it fixes the device
> completely.

As root, you can check what vlc is doing by enabling some kernel debug.

  echo 0xff > /sys/class/video4linux/video0/dev_debug

Don't forget to change video0 with the name of the video node you are
using.

> 
> 
> 
> 
> 
> --
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