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I've got google talk plugin installed and by default, my UVC webcam is upside down on Google+ Hangout video chat. How can I flip it over? I tried this and it didn't work:

LD_PRELOAD=/usr/lib/libv4l/ /opt/google/talkplugin/GoogleTalkPlugin

This LD_PRELOAD trick works fine on skype. Cheese works well by default, probably because it's using v4l2.

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Does it work in other applications like Cheese? – htorque Jul 8 '11 at 20:14
the LD_PRELOAD trick works fine on skype – 719016 Jul 8 '11 at 20:19

Actually, I forgot the ampersand at the end of the first line:

LD_PRELOAD=/usr/lib/libv4l/ /opt/google/talkplugin/GoogleTalkPlugin &

It now works. Still flipped if I don't call the first line before I call my browser.

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