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@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@iem.at mailto:zmoelnig@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 pdpwindow. pdp_capture would have been the ticket, but I can't get
it tocompile and looking at the archives of this list, it doesn't
seem likeothers 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 (withpdp, 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@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list