V4l2Src error

[Mazahir Poonawalla]

>
> Thanks Omer & Punya.
>
> @ Punya,
> How do I verify that?
> When I run the test pipeline, it works:
>
> fbset -disable
> gst-launch videotestsrc ! TIDmaiVideoSink
>
> but when I run any other example, it doesn't and gives me the error as
> mentioned before. I am working on composite input and hence I run this
> pipeline example:
>
> gst-launch  v4l2src chain-ipipe=true always-copy=false input-src=composite ! 'video/x-raw-yuv,format=(fourcc)NV12, width=736, height=480, framerate=(fraction)30000/1001' ! dmaiaccel !  dmaiperf ! TIDmaiVideoSink videoOutput=composite videoStd=D1_NTSC
>
> On 31 July 2012 21:28, Punya Prakash [via Gstreamer-embedded] <
> ml-node+s2243851n7572535h52 at n2.nabble.com> wrote:
>
>>  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=[hidden email]<http://user/SendEmail.jtp?type=node&node=7572535&i=0>[mailto:
>> gstreamer-embedded-bounces+pprakash=[hidden email]<http://user/SendEmail.jtp?type=node&node=7572535&i=1>]
>> *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 <[hidden email]<http://user/SendEmail.jtp?type=node&node=7572535&i=2>
>> >****
>>
>>  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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>
>
>
> --
>
> 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****
>
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-- 

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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