On 28 mei 2009, at 20:07, Josua Grawitter <[email protected]>
wrote:
> Am Donnerstag 28 Mai 2009 15:35:41 schrieb Joseph Olstad:
>> Claudio, did you try loading MPlayer like this?
>>
>> Try this command instead
>> LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so mplayer tv:// -tv
>> driver=v4l2:width=640:height=480:fps=25:device=/dev/video0 -vo x11
>>
>> See if that makes a difference. I did this and it worked with the
>> new
>> sn9c20x the first time I tested it , I also tested with skype using
>> the LD_PRELOAD=/usr/lib/libv4l/v4l2convert.so skype
>> and video in Skype worked for me as well (sound with skype was
>> another
>> story though).
>>
>> HOWEVER, now I have a new problem, for some reason, the driver was
>> loaded, now it doesn't seem to be loaded anymore after I ran insmod
>> once , tested ok first time I ran it, then several days later
>> attempted to use the webcam again but I can't now, says /dev/video0
>> doesn't exist and I get an error inserting the kernel module. I
>> tried
>> recompiling and inserting again. It appears that I need to run
>> insmod after I reboot? If so, what are the potential issues that
>> could come up there? I am using Ubuntu 9.04 , how do I make the
>> kernel
>> module come back up after rebooting automatically? Or is it some
>> other issue like a temp file that is locked in /tmp or something ? (I
>> didn't try cleaning the /tmp folder yet)
>>
>> Here is output from dmesg | tail
>> $ dmesg|tail
>> [10161.472157] ath5k phy0: noise floor calibration failed (2412MHz)
>> [10161.580170] ath5k phy0: noise floor calibration failed (2417MHz)
>> [10281.472188] ath5k phy0: noise floor calibration failed (2412MHz)
>> [10281.576168] ath5k phy0: noise floor calibration failed (2417MHz)
>> [11552.798806] sn9c20x: Unknown symbol video_ioctl2
>> [11552.800383] sn9c20x: Unknown symbol video_devdata
>> [11552.801942] sn9c20x: Unknown symbol video_unregister_device
>> [11552.802367] sn9c20x: Unknown symbol video_device_alloc
>> [11552.802586] sn9c20x: Unknown symbol video_register_device
>> [11552.803665] sn9c20x: Unknown symbol video_device_release
>>
>>
>> and from "sudo insmod sn9c20x.ko"
>> $ sudo insmod sn9c20x.ko
>> [sudo] password for joe:
>> insmod: error inserting 'sn9c20x.ko': -1 Unknown symbol in module
>>
>> I'll have to review the installation procedure again and try it
>> again,
>> but perhaps there's something else going on. How can I automatically
>> have this kernel module load every time I start my notebook computer
>> with Ubuntu 9.04?
>>
>> Thanks for the assistance.
>>
>> On May 28, 3:56 am, GWater <[email protected]> wrote:
>>> I'm sorry no one answered before.
>>>
>>> There's one more thing you can do:
>>> Try the whole mplayer thing again and afterwards post the output of
>>> $ dmesg | grep sn9c20x
>>>
>>> Hopefully this will give me an idea of where the problem could be.
>>>
>>> GWater
>>>
>>> On 28 Mai, 05:59, Claudio Miranda <[email protected]> wrote:
>>>> Hey guys, sorry to bore you, but do can you help me ?
>>>>
>>>> Thanks
>>>>
>>>> Claudio
>>>>
>>>> On May 17, 4:28 pm, Claudio Miranda <[email protected]>
>>>> wrote:
>>>>> Hi folks,
>>>>>
>>>>> Some months ago, before microdia module was renamed to sn9c20x,
>>>>> the
>>>>> my webcam worked very nice (mplayer, skype, shots).
>>>>> Then I had the good idea to update my microdia git copy, built and
>>>>> installed, but it doesn't work
>>>>> Launched mplayer, it displays a blue scree,
>>>>> seehttp://microdia.googlegroups.com/web/mplayer-webcam-shot1.png
>>>>>
>>>>> My webcam
>>>>> Bus 005 Device 017: ID 0c45:6270 Microdia U-CAM PC Camera NE878
>>>>>
>>>>> I have update my local microdia copy this afternoon
>>>>> $ git pull
>>>>>
>>>>> And have loaded the modules as this
>>>>>
>>>>> sudo modprobe videodev
>>>>> sudo insmod ./sn9c20x.ko
>>>>>
>>>>> There were no sn9c20x or microdia modules loaded before.
>>>>>
>>>>> Linux version
>>>>> $ uname -a
>>>>> Linux foxhound 2.6.24-22-generic #1 SMP Mon Nov 24 18:32:42 UTC
>>>>> 2008
>>>>> i686 GNU/Linux
>>>>>
>>>>> Configure v4l2
>>>>>
>>>>> $ export LD_PRELOAD=/usr/local/lib/libv4l/v4l2convert.so
>>>>> $ ls -l /usr/local/lib/libv4l/v4l2convert.so
>>>>> -rwxr-xr-x 1 claudio claudio 13K 2009-04-30 00:42 /usr/local/lib/
>>>>> libv4l/v4l2convert.so*
>>>>>
>>>>> The v4l library as compiled and installed on 04/30
>>>>>
>>>>> launch mplayer
>>>>>
>>>>> $ mplayer tv:// -tv
>>>>> driver=v4l2:width=640:fps=25:height=480:device=/
>>>>> dev/video0
>>>>>
>>>>> See the output below. Can you help me make this work ?
>>>>>
>>>>> Thanks !
>>>>>
>>>>> MPlayer 1.0rc2-4.2.4 (C) 2000-2007 MPlayer Team
>>>>> CPU: Genuine Intel(R) CPU T2400 @ 1.83GHz (Family: 6,
>>>>> Model: 14, Stepping: 8)
>>>>> CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
>>>>> Compiled with runtime CPU detection.
>>>>> mplayer: could not connect to socket
>>>>> mplayer: No such file or directory
>>>>> Failed to open LIRC support. You will not be able to use your
>>>>> remote
>>>>> control.
>>>>>
>>>>> Playing tv://.
>>>>> TV file format detected.
>>>>> Selected driver: v4l2
>>>>> name: Video 4 Linux 2 input
>>>>> author: Martin Olschewski <[email protected]>
>>>>> comment: first try, more to come ;-)
>>>>> Selected device: SN9C20x USB 2.0 Webcam Driver
>>>>> Capabilites: video capture read/write streaming
>>>>> supported norms:
>>>>> inputs: 0 = Webcam;v4l2: ioctl get input failed: Invalid argument
>>>>>
>>>>> Current input: 1
>>>>> Current format: unknown (0x30323953)
>>>>> tv.c: norm_from_string(pal): Bogus norm parameter, setting
>>>>> default.
>>>>> v4l2: ioctl enum norm failed: Invalid argument
>>>>> Error: Cannot set norm!
>>>>> Selected input hasn't got a tuner!
>>>>> v4l2: ioctl set mute failed: Invalid argument
>>>>> xscreensaver_disable: Could not find XScreenSaver window.
>>>>> ===
>>>>> ==================================================================
>>>>> ===== Opening video decoder: [raw] RAW Uncompressed Video
>>>>> VDec: vo config request - 640 x 480 (preferred colorspace: Planar
>>>>> YV12)
>>>>> VDec: using Planar YV12 as output csp (no 0)
>>>>> Movie-Aspect is undefined - no prescaling applied.
>>>>> VO: [xv] 640x480 => 640x480 Planar YV12
>>>>> Selected video codec: [rawyv12] vfm: raw (RAW YV12)
>>>>> ===
>>>>> ==================================================================
>>>>> ===== Audio: no sound
>>>>> Starting playback...
>>>>> No bind found for key 'c'.
>>>>> V: 0.0 39/ 39 ??% ??% ??,?% 0 0
>>
>> --~--~---------~--~----~------------~-------~--~----~
>> Lets make microdia webcams plug'n play, (currently plug'n pray)
>> To post to this group, send email to [email protected]
>> Visit us online https://groups.google.com/group/
>
> All you need is "videodev":
> # modprobe videodev
And if that works, add these modules to /etc/modules ..
echo "videodev >> /etc/modules"
Repeat for the other modules.
--~--~---------~--~----~------------~-------~--~----~
Lets make microdia webcams plug'n play, (currently plug'n pray)
To post to this group, send email to [email protected]
Visit us online https://groups.google.com/group/microdia
-~----------~----~----~----~------~----~------~--~---
