Hans de Goede (hansdegoede) wrote,
Hans de Goede

libv4l release: 0.6.0: the upside down release

Hi All,

I'm very happy to announce the first release of the next
stable series: libv4l-0.6.0

This release features the following familiar features from
previous 0.5.9x test releases:
  • Software whitebalancing
  • Software automatic gain and exposure for cams which lack this in hardware
  • Software gamma control
  • Fake v4l2 controls to control all these
  • Software flipping controls
And as a new feature it now has an extended list of laptops
whose camera modules (mostly uvc) are known to be mounted
upside down in the frame and it will automatically correct
the image for this.

To give this version a try on F-10 or F-11 do:
yum --enablerepo=updates-testing install libv4l v4l2ucp

If you've a laptop with an upside down webcam, after this the image should hopefully be the right way up in
cheese and most other apps. For skype use:
LD_PRELOAD=/usr/lib/libv4l/v4l1compat.so skype

If the image is not the right way up, then your laptop needs to be added to libv4l's upside down devices list, in that case
please do:
lsusb > lsusb.log
dmidecode > dmi.log

And mail me the 2 log files, it is important to use redirects (">") and to not copy paste as the dmi.log file can contain
lines with trailing whitespace which I need.

If you're interesting in testing the new whitebalance or gamma correction code, see my previous blog post:

Tags: fedora, kernel

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