Well, I don't know if I was on 'video' group but I did the addition. I checked the file you sent me and it works. However, for the moment, I have 3 questions:
- If I don't activate the device in the right side of the patch, nor
Blender nor VLC can get the image from /dev/video1 (VLC shows errors on console, Blender says nothing, but it makes black texture) Why is like that? Supposedly, being pix_record there and activated, I should get from where I want...
- Look at the attached image: why the video is vertically inverted? I
don't know about GEM, but I didn't find any object that do that.
- How the patch should be if I want to send the GEM window to loopback?
I mean, not only the color and vertical inverted video, but the whole window...
Thank you very much!
El 22/04/15 a las 11:14, Antoine Villeret escibió:
Hi,
the Iohannes' instructions are still relevant but there are few things you might pay attention to :
- be sure you belong to "video" group, if you got an error like
"[pix_record] : can't open /dev/video1" this could be the issue (if /dev/video1 exists of course)
- set and start the capture *before* setting the device capture. The
v4l2device is undefined (nor a capture or a tuner device) until you send the first frame to it.
here is attached a sample patch that works with current Gem from git.
best
antoine
Le mer. 22 avr. 2015 à 15:06, Mario Mey <mariomey@gmail.com mailto:mariomey@gmail.com> a écrit :
Hi, there. I'm reviving a mail from 2011... here it is the last of the thread: http://lists.puredata.info/pipermail/pd-list/2011-02/086741.html I was looking for help to use Gem with v4l2loopback. These mails are the only ones where I found the way to do it (no other place in internet). After installing v4l2loopback kernel module, I did what IOhannes said: ------------ you should be able to use [pix_record] with v4l2loopback. just do: - - create [pix_record] - - check at the console whether it prints something like "[pix_record]: backend #1='V4L2'" (this will only happen the first time you create a [pix_record] object for hygienic reasons) - - if so, continue - - set the codec to "v4l2" and the output filename to /dev/video1 (or whatever your loopback-device is). something like [codec v4l2, filename /dev/video1, record 1( should do the trick. f gmasdr IOhannes ----------- Now, there is /dev/video1 (also, /dev/video0 from Webcam). But, when I try to open that device with VLC, I got this error: [0x7fed08000e28] v4l2 demux error: not a video capture device [0x7fed08000e28] v4l2 demux error: not a radio tuner device [0x7fed08000e08] v4l2 access error: not a video capture device [0x7fed18003898] main input error: open of `v4l2:///dev/video1' failed I tried to open with Blender, videoOnTexture, but the texture is black. There's no error messages. What am I doing wrong? I have Pd-extended 0.44.0-extended-20130808, Ubuntu 14.04. I don't know how to know Gem version. _______________________________________________ Pd-list@lists.iem.at <mailto:Pd-list@lists.iem.at> mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
