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by RpiName
Wed Aug 07, 2013 5:50 am
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

Then from the desktop, right clicked my .py program > open with IDEL > F5 to run > Get Error Are you sure the LD_PRELOAD environment variable is set (persistently or not) BEFORE running the program that way? Without that variable properly set, you will get exactly the same error you are reporting.
by RpiName
Tue Aug 06, 2013 1:08 pm
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

nickneubrand wrote: When I ran the code you listed I got the same thing. So maybe I'm just missing something, hope its working for others.
Maybe you did not update the driver..? Please read and follow my previous advices again. Your program works perfectly for me. Attached is a screenshot.
rpi.jpeg
screenshot
rpi.jpeg (61.7 KiB) Viewed 14871 times
by RpiName
Sun Aug 04, 2013 6:19 pm
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

Yeah I eventually got that same error from the Shell as well. I was looking for a video stream, rather than pictures. I'm trying to get a video feed in, then put graphic overlays on top of the video stream. If I find a way to get it to work, I'll post it up. The last version of the driver supports ...
by RpiName
Sun Aug 04, 2013 5:47 pm
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

RpiName wrote:
What output modes does the RPi V4L2 driver support? is it JPEG only?
For now, yes.
UPDATE: the latest version supports video in YUV420 (I420) via the --video-port and --framerate options.
by RpiName
Sat Aug 03, 2013 11:52 am
Forum: Camera board
Topic: Got mjpg-streamer working
Replies: 17
Views: 6791

Re: Got mjpg-streamer working

This is another way to use mjpg-streamer with the camera, which might solve some of the problems mentioned above: http://www.linux-projects.org/modules/sections/index.php?op=viewarticle&artid=16 for more informations: http://www.linux-projects.org/modules/sections/index.php?op=viewarticle&artid=14 h...
by RpiName
Sat Aug 03, 2013 11:33 am
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

shuckle wrote:What kind of speed (fps) can be expected with motion?
At the moment, only native JPEG is supported by the driver, so it's about 2 fps.
by RpiName
Sat Aug 03, 2013 5:14 am
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

ekoome wrote:Anyone got it to work with motion? Getting error unable to open video device. Also getting error /dev/video0 does not support streaming i/o.
There is a basic guide on the website to use the driver with Motion:
http://www.linux-projects.org/modules/s ... e&artid=16
by RpiName
Sat Aug 03, 2013 5:12 am
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

I tried to get it to work by using this driver in addition to SimpleCV and OpenCV, both seem to work as far as communicating with the camera, because the camera light does turn on. But every time my program loads it freezes my pi. Does anyone have any solutions I might be able to try? Upgrade UV4L ...
by RpiName
Sat Aug 03, 2013 5:09 am
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

What output modes does the RPi V4L2 driver support? is it JPEG only?
For now, yes.
by RpiName
Thu Jul 25, 2013 8:12 am
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

I'm trying to get a video feed in, then put graphic overlays on top of the video stream. Have you had a look at fswebcam ? http://www.firestorm.cx/fswebcam/ I think it can overlay PNG images while grabbing. The resulting images can be piped into mencoder to encode a video. To give you an idea, see:...
by RpiName
Thu Jul 25, 2013 7:09 am
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

If anyone has some information on how to fix this it would be greatly appreciated. To enable the streaming I/O, set the LD_PRELOAD environment variable as in the following example: $ LD_PRELOAD=/usr/lib/uv4l/uv4lext/armv6l/libuv4lext.so python ./pyprog.py The "pygame.camera" python module does not ...
by RpiName
Wed Jul 24, 2013 6:25 pm
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

Anyone got it to work with motion? Getting error unable to open video device. Also getting error /dev/video0 does not support streaming i/o. Try to load the driver with the --extension-presence=1 option ( man uv4l for more informations why it is necessary in some cases), and run motion as follows: ...
by RpiName
Wed Jul 24, 2013 5:11 am
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

John, again, that V4L2 driver is a 100% user space program ; it does not strictly depend on the kernel in any way! In other words, as long as the mmal ABI is stable (isn't it?), unlike a real kernel driver, that driver does not have to be rebuilt each time the kernel or the firmware internals change...
by RpiName
Tue Jul 23, 2013 9:56 pm
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

Hello John,

the author is the same person; no source code is available from the website.
by RpiName
Tue Jul 23, 2013 7:21 pm
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Re: Video4Linux2 driver ready!

is that just V4L in general, or this Raspbian userspace code in particular? I am not sure what you mean by that question, but UV4L consists of a group of Video4Linux2-compliant user space drivers ported to Raspbian. One of those drivers is for the Rpi CSI Camera Board. From the documentation availa...
by RpiName
Tue Jul 23, 2013 1:24 am
Forum: Camera board
Topic: Video4Linux2 driver ready!
Replies: 164
Views: 94390

Video4Linux2 driver ready!

Hello,
to your knowledge, a Video4Linux2 driver for the CSI Camera Board is available here:

http://www.linux-projects.org/modules/n ... toryid=150
by RpiName
Sat Jul 06, 2013 3:24 am
Forum: Camera board
Topic: Video4Linux2 driver for the camera modiule
Replies: 1
Views: 754

Video4Linux2 driver for the camera modiule

To your knowledge, an user space Video4Linux2 driver for the camera modiule is work in progress here:
http://www.linux-projects.org

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