libv4l support
Issue generated from Tuleap's migration script. Originally submitted by: brokoli (brokoli)
Description: on some ASUS laptops web camera shows image upside-down, to avoid it users should start program with libv4l preloaded.
Environment: Ubuntu 17.10
Reproduce steps:
On ASUS laptop with Ubuntu run in terminal:
LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libv4l/v4l1compat.so ring.cx
or
LD_PRELOAD=/usr/lib/x86_64-linux-gnu/libv4l/v4l2convert.so ring.cx
Expected result: Web camera working without image upside-down.
Actual result: Web camera still shows flipped image.