[PD] live pd patch mixed with Gem or pdp?

[John Harrison]

bleh I'm failing to get either v4l2loopback or webcamstudio modules to 
actually load.

I'm running ubuntu Lucid 10.04 with 2.6.32-24-generic kernel

v4l2loopback svn builds and installs ok

however, modprobe v4l2loopback returns in dmesg:

    [   46.328926] v4l2loopback: disagrees about version of symbol
    video_unregister_device
    [   46.328929] v4l2loopback: Unknown symbol video_unregister_device
    [   46.328996] v4l2loopback: disagrees about version of symbol
    video_device_alloc
    [   46.328998] v4l2loopback: Unknown symbol video_device_alloc
    [   46.329091] v4l2loopback: disagrees about version of symbol
    video_register_device
    [   46.329093] v4l2loopback: Unknown symbol video_register_device
    [   46.329178] v4l2loopback: disagrees about version of symbol
    video_device_release
    [   46.329179] v4l2loopback: Unknown symbol video_device_release

similarly, modprobe webcamstudio returns in dmesg:

    [   39.281212] webcamstudio: disagrees about version of symbol
    video_devdata
    [   39.281215] webcamstudio: Unknown symbol video_devdata
    [   39.281309] webcamstudio: disagrees about version of symbol
    video_unregister_device
    [   39.281311] webcamstudio: Unknown symbol video_unregister_device
    [   39.281376] webcamstudio: disagrees about version of symbol
    video_device_alloc
    [   39.281377] webcamstudio: Unknown symbol video_device_alloc
    [   39.281446] webcamstudio: disagrees about version of symbol
    video_register_device
    [   39.281448] webcamstudio: Unknown symbol video_register_device
    [   39.281551] webcamstudio: disagrees about version of symbol
    video_device_release
    [   39.281553] webcamstudio: Unknown symbol video_device_release

a reboot doesn't help.

-John

On 08/30/2010 11:40 AM, ydegoyon at gmail.com wrote:
> ola,
>
> pdp_capture was working once with an old version of ImageMagick
> but anyway it was too slow,
> so now its compilation is made optional,
> it is a bit abandonware..
>
> use webcamstudio instead ( http://www.ws4gl.org/ ),
> it does the same as gstreamer that Iohannes recommends,
> but with an interface...
> it will output the screenshots to a vloopback device ..
>
> about the disposition on the screen, no eye deer ..
>
> ahoj!
> sevy
>
> John Harrison wrote:
>> is there a way to do these screenshots such that they don't actually 
>> show up on a screen visible to the user i.e I don't have to show the 
>> raw Pd patch to the user, only the mix? This is a 2-headed machine 
>> (one machine --- I'll use 2 if I absolutely have to) and the plan is 
>> to show a Gem or pdp window fullscreen on one head and a pdp window 
>> fullscreen on the other. This leaves me not sure where to put the Pd 
>> patch for the screenshots.
>>
>> On Mon, Aug 30, 2010 at 10:44 AM, IOhannes m zmoelnig 
>> <zmoelnig at iem.at <mailto:zmoelnig at iem.at>> wrote:
>>
>>     On 2010-08-30 17:04, John Harrison wrote:
>> > I'd like to take a patch from a pd window and mix it live with a
>>     Gem or pdp
>> > window. pdp_capture would have been the ticket, but I can't get
>>     it to
>> > compile and looking at the archives of this list, it doesn't
>>     seem like
>> > others have had luck with it either. Any other ideas for me?
>> >
>>
>>     a bit complicated, but you can do that by doing screenshots with
>>     gstreamer, send it to a videoloopback device and read that (with 
>> pdp,
>>     Gem, GridFlow or whatelse)
>>
>>     - get v4l2loopback (http://code.google.com/p/v4l2loopback/)
>>      compile, install, load the module
>>     - get gst-v4l2loopback (http://github.com/umlaeute/gst-v4l2loopback)
>>      compile (need gst-plugin-base-dev), install
>>
>>     run the gstreamer-pipeline, e.g.
>>     $ gst-launch ximagesrc use-damage=false startx=0 starty=0 endx=640
>>     endy=480 ! queue ! ffmpegcolorspace ! v4l2loopback
>>
>>     access the video using [pix_video], [pdp_v4l2] [#camera] or cat
>>
>>
>>     running here.
>>     this of course only grabs a portion of the screen, rather than a
>>     window
>>     and track that...
>>
>>     fgmadfs
>>     IOhannes
>>
>>
>>
>> _______________________________________________
>> Pd-list at iem.at mailing list
>> UNSUBSCRIBE and account-management -> 
>> http://lists.puredata.info/listinfo/pd-list

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20100830/637d620b/attachment.htm>