On Tuesday 24 March 2009 14:54:23 Dmitriy Geels wrote: > 2009/3/24 Laurent Pinchart <[email protected]>: > > This case isn't different at all. Software rotation belongs to userspace, > > period. Luckily, the libv4l(2) userspace library implements image > > rotation so you should be able to get an upside-up image without > > modifying the driver. > > Is there any way to rotate image globally for whole system from userspace?
The goal was, if I remember well, to have rotation implemented in a completely transparent way for userspace applications. The applications will, of course, have to use libv4l(2). libv4l(2) should detect that the device requires rotation (based on the USB VID:PID) and rotate the image in software if hardware rotation isn't supported. > I will try to make some reverse engineering on original drivers, may > be there is something, that control hardware flipping. What camera are you using ? Please post the USB descriptors (retrieved with 'lsusb -v' using usbutils 0.72 or newer - 0.73+ preferred). Best regards, Laurent Pinchart _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
