(java.exe:1820): WARNING **: gstvideo: failed to get caps of pad rgb:sink

[su2lin]

Got an error when I try to processing the pixels captured from webcam,
does anyone know that's the error mean?

[arismelachroinos]

Same error here

[arismelachroinos]

Oh I found out! For me it was because I had left the camera app open. So the error maybe means that another application uses the camera so you have to close that to work!

[codeanticode]

Looks like this issue was caused by having another application using the camera.

[su2lin]

Thanks, I tried but it's not " caused by having another application using the camera" for me. BTW, I am using windows 10, just incase it's some difference between Mac and PC....

[codeanticode]

Ok, thanks for confirming that the problem is not related to that situation. Have you tried the 2.0-beta1 release of the library? Does it still happen there?

[codeanticode]

@su2lin The beta 4 has improved support for capture devices, did you give it a try? (needs to be installed manually, as it is not available through the contributions manager just yet).