Laurent Pinchart wrote:
> On Thursday 17 January 2008, Sid Boyce wrote:
>> Sid Boyce wrote:
>>> Sid Boyce wrote:
>>>> Laurent Pinchart wrote:
>>>>> Hi Sid,
>>>>>
>>>>> On Wednesday 16 January 2008, Sid Boyce wrote:
>>>>>> Sid Boyce wrote:
>>>>>>
>>>>>> After upgrading to 2.6.24-rc8, getting different results.
>>>> #### Guessed you missed this.
>>>>
>>>>>> # luvcview
>>>>>> luvcview version 0.2.1
>>>>>> Video driver: x11
>>>>>> A window manager is available
>>>>>> video /dev/video0
>>>>>> Unable to set format: 22.
>>>>>> Init v4L2 failed !! exit fatal
>>>> # luvcview -l
>>>> luvcview version 0.2.1
>>>> Video driver: x11
>>>> A window manager is available
>>>> video /dev/video0
>>>> Unable to set format: 22.
>>>> Init v4L2 failed !! exit fatal
>>>> sepulot:~ # luvcview -L
>>>> luvcview version 0.2.1
>>>> Video driver: x11
>>>> A window manager is available
>>>> video /dev/video0
>>>> /dev/video0 does not support read i/o
>>>> { pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
>>>> { discrete: width = 640, height = 480 }
>>>> Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 1/1,
>>>> { discrete: width = 352, height = 288 }
>>>> Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 1/1,
>>>> { discrete: width = 320, height = 240 }
>>>> Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 1/1,
>>>> { discrete: width = 176, height = 144 }
>>>> Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 1/1,
>>>> { discrete: width = 160, height = 120 }
>>>> Time interval between frame: 1/30, 1/20, 1/15, 1/10, 1/5, 1/1,
>>>>
>>>>> xawtv 3.95 has a known bug. Please try luvcview instead.
>>>>>
>>>>> Best regards,
>>>>>
>>>>> Laurent Pinchart
>>>> Regards
>>>> Sid.
>>> Seen in "strace -s 256 -f luvcview -d /dev/video1".
>>> open("/dev/video1", O_RDWR) = 7
>>> ioctl(7, VIDIOC_QUERYCAP or VT_OPENQRY, 0x64a520) = 0
>>> ioctl(7, VIDIOC_S_FMT or VT_RELDISP, 0x64a588) = -1 EINVAL (Invalid
>>> argument)
>>> close(7) = 0
>>> write(1, "luvcview version 0.2.1 \nVideo driver: x11\nA window manager
>>> is available\nvideo /dev/video1 \nUnable to set format: 22.\n Init v4L2
>>> failed !! exit fatal \n", 150luvcview version 0.2.1
>>> Video driver: x11
>>> A window manager is available
>>> video /dev/video1
>>> Unable to set format: 22.
>>> Init v4L2 failed !! exit fatal
>>> ) = 150
>>> exit_group(1)
>>>
>>> Problem with format.
>>> Worked finally using "luvcview -f yuv -d /dev/video1".
>>> Regards
>>> Sid.
>> # luvcview -f jpg -d /dev/video1
>> luvcview version 0.2.1
>> Video driver: x11
>> A window manager is available
>> video /dev/video1
>> Unable to set format: 22.
>> Init v4L2 failed !! exit fatal
>
> That's pretty normal, your camera supports YUV only. You must use
>
> luvcview -f yuv -d /dev/video1
>
>> Also does not work with skype. No format or other errors seen in skype.
>> The only referene in strace for skype:
>> [pid 19901] open("/dev/video1", O_RDWR|O_NONBLOCK) = 17
>> [pid 19901] ioctl(17, VIDIOC_QUERYCAP or VT_OPENQRY, 0xf41d1054) = 0
>> [pid 19901] close(17)
>> I don't see any strace reference for when I try the skype camera test.
>
> As Skype is a closed-source software there's not much I can do to find out why
> it doesn't like your camera. You should contact Skype's technical support.
>
>> It seems the camera only works with the yuv format.
>
> That's right.
>
>> The Logitech Quickcam Pro 9000 using the same uvcvideo driver on my main
>> PC works, so I shall try it on the laptop later.
>
> The QC Pro 9000 supports both YUV and MJPEG.
>
>> A gspca and a ov51x have both work with skype on this laptop.
>
> Regards,
>
> Laurent Pinchart
>
>
Good idea, I was thinking along those lines also, so the next version of
skype supports both.
Regards
Sid.
--
Sid Boyce ... Hamradio License G3VBV, Licensed Private Pilot
Emeritus IBM/Amdahl Mainframes and Sun/Fujitsu Servers Tech Support
Specialist, Cricket Coach
Microsoft Windows Free Zone - Linux used for all Computing Tasks
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