opencv_trail_effect.cpp: hardcode V4L2 VideoCapture backend on linux
authorAntonio Ospite <ao2@ao2.it>
Sat, 10 Oct 2020 19:57:45 +0000 (21:57 +0200)
committerAntonio Ospite <ao2@ao2.it>
Sat, 10 Oct 2020 20:12:05 +0000 (22:12 +0200)
commit6dfbf326ce5ad3b4cd83760763c0ed7807803998
tree3b3b0dc13cda0d8def3615b5ffea668a801a3fac
parent21adbf9205a5c28a036ddd2373d85a9662e9b7fc
opencv_trail_effect.cpp: hardcode V4L2 VideoCapture backend on linux

Hardcode the V4L2 backend on linux for now because the GStreamer one
lacks some functionality, see:
https://github.com/opencv/opencv/issues/18562
opencv_trail_effect.cpp