On 04/23/2015 09:02 PM, Mario Mey wrote: > El 23/04/15 a las 12:14, IOhannes m zmoelnig escibió: >> On 2015-04-23 15:51, Mario Mey wrote: >>> 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... >> this could have a multitude of reasons. >> i would suggest first checking what those errors are that VLC throws >> (chances are they mean something). >> then try using gstreamer(-0.10!) to display the video. something like: >> $ gst-launch0.10 v4l2src device=/dev/video1 ! ffmpegcolorspace ! >> xvimagesink > > After some tests (including using gst-launch0.10)... I realized that I > was wrong. Blender and VLC can read from /dev/video1 without activating > it on Pd.
unfortunately i don't know what you mean exactly with "activating". > > But... I need to create gemwin before VLC or Blender or Gstreamer. Is > this normal? Should I need gem window opened? It is for gemhead to make > gemlists... isn't it? and you need gemlists for pix sources to emit pixel data. and you need pixel data for [pix_record] to set the output frame dimensions/colorspace. and you need to set the output frame dimensions/colorspace in order to turn a v4l2loopback OUTPUT device into a CAPTURE device. and you need a CAPTURE device in order to read it in blender, vlc,... or any other capturing application. >> >> anyhow, this means that the v4l2loopback output is working. >> so that leaves two more potential candidates for your*problem*: > Do you mean the Blender and VLC getting "problem"? It is resolved. > Well... maybe it never was there. >> - the v4l2loopback kernel module (there are some known issues with e.g. >> gstreamer-1.0; which version are you using?) > I didn't know I had gstreamer installed on the system. I have 1.0 and 0.10. i was referring to the version of v4l2loopback. sorry for the confusion. fngsrd IOhannes
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