V4l2Src error

[Prakash, Punya]

Maz - looks like your video device node is not created, verify the camera connection to the board and then the camera driver.

Regards,
Punya

From: gstreamer-embedded-bounces+pprakash=ti.com at lists.freedesktop.org [mailto:gstreamer-embedded-bounces+pprakash=ti.com at lists.freedesktop.org] On Behalf Of Omer Fux
Sent: Tuesday, July 31, 2012 10:36 AM
To: Discussions specific to using GStreamer on embedded systems
Subject: Re: V4l2Src error

try adding the  -v , -e , --gst-debug=0  "flags".

for example :

gst-launch v4l2src -v --gst-debug=0  always-copy=false num-buffers=100 ! video/x-raw-yuv,width=640,height=480,framerate=25/1 ! TIVidenc1 codecName=h264enc engineName=codecServer ! avimux ! filesink location=sample.h264

or ar the other end of v4l2src , like in this example

gst-launch -v -e --gst-debug=0 v4l2src   always-copy=false num-buffers=100 ! video/x-raw-yuv,width=640,height=480,framerate=25/1 ! TIVidenc1 codecName=h264enc engineName=codecServer ! avimux ! filesink location=sample.h264


this may help..not logical, but it works for me, on a different embedded device.



2012/7/31 Mazahir Poonawalla <mazahir.poonawalla at ideaforge.co.in<mailto:mazahir.poonawalla at ideaforge.co.in>>

Hello,

I am trying to run gstreamer examples for composite video input as well as for input from LI-5M03 board as mentioned in the following web-pages:

https://www.ridgerun.com/developer/wiki/index.php/TVP5146_GStreamer_example_pipelines

https://www.ridgerun.com/developer/wiki/index.php/LeopardBoard_365_GStreamer_Pipelines_-_SDK_2011Q2

http://designsomething.org/leopardboard/f/33/p/806/2827.aspx#2827

The problem is that it runs the 1st time perfectly. But then when I try to run the 2nd time, I get the following error:

Setting pipeline to PAUSED ...
davinci_resizer davinci_resizer.2: RSZ_G_CONFIG:0:1:124
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstPipeline:pipeline0/GstV4l2Src:v4l2src0: Cannot identify device '/dev/video0'.
Additional debug info:
../../../src/sys/v4l2/v4l2_calls.c(573): gst_v4l2_open (): /GstPipeline:pipeline0/GstV4l2Src:v4l2src0:
system error: No such file or directory
Setting pipeline to NULL ...
Freeing pipeline ...

This happens all the time. I restarted the leopardboard, also reinserted the sd card but it just does not work.

Can anyone please suggest as to what is going wrong?

Thanks,

Maz



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