gstreamer video device not found

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Well the driver is installed, the camera is connected to the board as well.
It works maybe 1 out of 10 times which is weird. The rest of the times it
shows up this error.

On 27 July 2012 19:21, Chuck Crisler <ccrisler at mutualink.net> wrote:

> Video for Linux (V4L) is not able to recognise whatever (if anything) you
> have connected to /dev/video0. If you have some input video device
> connected, maybe you don't have a V4L driver.
>
> On Fri, Jul 27, 2012 at 7:17 AM, Mazahir Poonawalla <
> mazahir.poonawalla at ideaforge.co.in> wrote:
>
>> Hi,
>>
>> I tried running an example plugin on leopardboard:
>>
>> gst-launch -v -e v4l2src always-copy=FALSE input-src=composite
>> chain-ipipe=true ! video/x-raw-yuv,format=\(fourcc\)NV12, width=1280,
>> height=720 ! queue ! dmaiaccel ! dmaienc_h264 encodingpreset=2
>> ratecontrol=2 intraframeinterval=23 idrinterval=46 targetbitrate=3000000 !
>> rtph264pay ! udpsink port=$PORT host=$HOST_ADDR sync=false
>> enable-last-buffer=false
>>
>> I also tried the example mentioned in
>> www.ridgerun.com/.../LeopardBoard_365_GStreamer_Pipelines_-_SDK_2011Q2<https://www.ridgerun.com/developer/wiki/index.php/LeopardBoard_365_GStreamer_Pipelines_-_SDK_2011Q2>
>>  :
>>
>> gst-launch -e v4l2src always-copy=FALSE input-src=composite
>> chain-ipipe=true ! video/x-raw-yuv,format=\(fourcc\)NV12, width=1280,
>> height=720, framerate=\(fraction\)23/1 ! queue ! dmaiaccel ! dmaienc_h264
>> encodingpreset=2 ratecontrol=2 intraframeinterval=23 idrinterval=46
>> targetbitrate=3000000 ! rtph264pay ! udpsink port=$PORT host=$HOST_ADDR
>> sync=false enable-last-buffer=false &
>>
>> But I keep getting the error as below:
>>
>> 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 ...
>>
>> Can someone please help as to what is going wrong?
>>
>> --
>>
>> Thank you & Regards,****
>>
>> *Mazahir Poonawalla*****
>>
>>
>>
>> _______________________________________________
>> gstreamer-devel mailing list
>> gstreamer-devel at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>>
>>
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel
>
>


-- 

Thank you & Regards,****

*Mazahir Poonawalla*****

ideaForge Technology Pvt. Ltd. | Board: +91 22 2767 0001; +91 22 2767 0707
| mazahir.poonawalla at ideaforge.co.in |www.ideaforge.co.in****

*P** **Please consider the environment before printing this e-mail*
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