v4l2-plugin: has no property to set video orientation
I got HFLIP and VFLIP control type through v4l2 VIDIOC_QUERYCTRL in v4l2convert, but these control types are not handled in extra-controls and handled by video orientation interface.
I did find some plugins(v4l2src/v4l2sink) implement v4l2_video_orientation interface, but there have no property use these interface( ex: when use gst-launch-1.0 to test ). So, Is it necessary to add the corresponding property to set the flip function in v4l2object like waylandsink add rotate-method property?
Edited by Yu Shengqi