Uvcvideo - odwrócony obraz kamery

Oprogramowanie komputerowe GNU/Linux
#1

W Asusie k52je działającym na Ubuntu 11.04 x64 pojawia się problem odwróconego obrazu z kamery.

W przypadku aplikacji takich jak skype, nie jest to problem, bo wystarczy, że uruchomię ją w ten sposób:

export LIBV4LCONTROL_FLAGS=3 && LD_PRELOAD=/usr/lib32/libv4l/v4l1compat.so skype

Niestety nie mogę tego samego zrobić korzystając z przeglądarki: google-chrome/firefox/opera. Kiedy uruchomię przeglądarkę w ten sposób:

export LIBV4LCONTROL_FLAGS=3 && LD_PRELOAD=/usr/lib32/libv4l/v4l1compat.so google-chrome

wtyczka flash’a w dalszym ciągu wyświetla obraz do góry nogami. Czy istnieje możliwość ustawienia tego preloadowania globalnie? Może wtedy wtyczka flasha będzie z tej opcji korzystać. Myślałem też nad przekazaniem odpowiedniego parametru do uvcvideo. Wynik polecenia:

udevadm info -q all --name=/dev/video0 --attribute-walk

looking at device '/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/video4linux/video0':

    KERNEL=="video0"

    SUBSYSTEM=="video4linux"

    DRIVER==""

    ATTR{name}=="USB 2.0 Camera"

    ATTR{index}=="0"


  looking at parent device '/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0':

    KERNELS=="1-1.2:1.0"

    SUBSYSTEMS=="usb"

    DRIVERS=="uvcvideo"

    ATTRS{bInterfaceNumber}=="00"

    ATTRS{bAlternateSetting}==" 0"

    ATTRS{bNumEndpoints}=="01"

    ATTRS{bInterfaceClass}=="0e"

    ATTRS{bInterfaceSubClass}=="01"

    ATTRS{bInterfaceProtocol}=="00"

    ATTRS{supports_autosuspend}=="1"

    ATTRS{iad_bFirstInterface}=="00"

    ATTRS{iad_bInterfaceCount}=="02"

    ATTRS{iad_bFunctionClass}=="0e"

    ATTRS{iad_bFunctionSubClass}=="03"

    ATTRS{iad_bFunctionProtocol}=="00"

    ATTRS{interface}=="USB Camera"


  looking at parent device '/devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2':

    KERNELS=="1-1.2"

    SUBSYSTEMS=="usb"

    DRIVERS=="usb"

    ATTRS{configuration}==""

    ATTRS{bNumInterfaces}==" 2"

    ATTRS{bConfigurationValue}=="1"

    ATTRS{bmAttributes}=="80"

    ATTRS{bMaxPower}=="500mA"

    ATTRS{urbnum}=="2627"

    ATTRS{idVendor}=="13d3"

    ATTRS{idProduct}=="5130"

    ATTRS{bcdDevice}=="1211"

    ATTRS{bDeviceClass}=="ef"

    ATTRS{bDeviceSubClass}=="02"

    ATTRS{bDeviceProtocol}=="01"

    ATTRS{bNumConfigurations}=="1"

    ATTRS{bMaxPacketSize0}=="64"

    ATTRS{speed}=="480"

    ATTRS{busnum}=="1"

    ATTRS{devnum}=="3"

    ATTRS{devpath}=="1.2"

    ATTRS{version}==" 2.00"

    ATTRS{maxchild}=="0"

    ATTRS{quirks}=="0x0"

    ATTRS{avoid_reset_quirk}=="0"

    ATTRS{authorized}=="1"

    ATTRS{manufacturer}=="Sonix Technology Co., Ltd."

    ATTRS{product}=="USB 2.0 Camera"


  looking at parent device '/devices/pci0000:00/0000:00:1a.0/usb1/1-1':

    KERNELS=="1-1"

    SUBSYSTEMS=="usb"

    DRIVERS=="usb"

    ATTRS{configuration}==""

    ATTRS{bNumInterfaces}==" 1"

    ATTRS{bConfigurationValue}=="1"

    ATTRS{bmAttributes}=="e0"

    ATTRS{bMaxPower}==" 0mA"

    ATTRS{urbnum}=="182"

    ATTRS{idVendor}=="8087"

    ATTRS{idProduct}=="0020"

    ATTRS{bcdDevice}=="0000"

    ATTRS{bDeviceClass}=="09"

    ATTRS{bDeviceSubClass}=="00"

    ATTRS{bDeviceProtocol}=="01"

    ATTRS{bNumConfigurations}=="1"

    ATTRS{bMaxPacketSize0}=="64"

    ATTRS{speed}=="480"

    ATTRS{busnum}=="1"

    ATTRS{devnum}=="2"

    ATTRS{devpath}=="1"

    ATTRS{version}==" 2.00"

    ATTRS{maxchild}=="6"

    ATTRS{quirks}=="0x0"

    ATTRS{avoid_reset_quirk}=="0"

    ATTRS{authorized}=="1"


  looking at parent device '/devices/pci0000:00/0000:00:1a.0/usb1':

    KERNELS=="usb1"

    SUBSYSTEMS=="usb"

    DRIVERS=="usb"

    ATTRS{configuration}==""

    ATTRS{bNumInterfaces}==" 1"

    ATTRS{bConfigurationValue}=="1"

    ATTRS{bmAttributes}=="e0"

    ATTRS{bMaxPower}==" 0mA"

    ATTRS{urbnum}=="92"

    ATTRS{idVendor}=="1d6b"

    ATTRS{idProduct}=="0002"

    ATTRS{bcdDevice}=="0206"

    ATTRS{bDeviceClass}=="09"

    ATTRS{bDeviceSubClass}=="00"

    ATTRS{bDeviceProtocol}=="00"

    ATTRS{bNumConfigurations}=="1"

    ATTRS{bMaxPacketSize0}=="64"

    ATTRS{speed}=="480"

    ATTRS{busnum}=="1"

    ATTRS{devnum}=="1"

    ATTRS{devpath}=="0"

    ATTRS{version}==" 2.00"

    ATTRS{maxchild}=="2"

    ATTRS{quirks}=="0x0"

    ATTRS{avoid_reset_quirk}=="0"

    ATTRS{authorized}=="1"

    ATTRS{manufacturer}=="Linux 2.6.38-10-generic ehci_hcd"

    ATTRS{product}=="EHCI Host Controller"

    ATTRS{serial}=="0000:00:1a.0"

    ATTRS{authorized_default}=="1"


  looking at parent device '/devices/pci0000:00/0000:00:1a.0':

    KERNELS=="0000:00:1a.0"

    SUBSYSTEMS=="pci"

    DRIVERS=="ehci_hcd"

    ATTRS{vendor}=="0x8086"

    ATTRS{device}=="0x3b3c"

    ATTRS{subsystem_vendor}=="0x1043"

    ATTRS{subsystem_device}=="0x1c77"

    ATTRS{class}=="0x0c0320"

    ATTRS{irq}=="16"

    ATTRS{local_cpus}=="00000000,00000000,00000000,00000000,00000000,00000000,00000000,0000000f"

    ATTRS{local_cpulist}=="0-3"

    ATTRS{numa_node}=="-1"

    ATTRS{dma_mask_bits}=="32"

    ATTRS{consistent_dma_mask_bits}=="32"

    ATTRS{broken_parity_status}=="0"

    ATTRS{msi_bus}==""

    ATTRS{companion}==""


  looking at parent device '/devices/pci0000:00':

    KERNELS=="pci0000:00"

    SUBSYSTEMS==""

    DRIVERS==""

Niestety uvcvideo nie akceptuje parametru vflip:

sudo modprobe -r uvcvideo

sudo modprobe -v uvcvideo vflip=0

insmod /lib/modules/2.6.38-10-generic/kernel/drivers/media/video/v4l2-compat-ioctl32.ko 

insmod /lib/modules/2.6.38-10-generic/kernel/drivers/media/video/videodev.ko 

insmod /lib/modules/2.6.38-10-generic/kernel/drivers/media/video/uvc/uvcvideo.ko vflip=0

FATAL: Error inserting uvcvideo (/lib/modules/2.6.38-10-generic/kernel/drivers/media/video/uvc/uvcvideo.ko): Unknown symbol in module, or unknown parameter (see dmesg)