[meta-freescale] Gstreamer pipeline problem

[Philip Craig]

On Fri, Jul 12, 2013 at 5:50 PM, Chris Tapp <opensource at keylevel.com> wrote:
> Hi John,
>
> On 12 Jul 2013, at 01:22, John Weber wrote:
>
>> Hi Chris,
>>
>>> gst-launch videotestsrc ! v4l2sink
>>>
>>> to work as there's no /dev/video1 ! Does anyone know where I can find instructions on how to get v4l2 working under Ubuntu 12.04 for a radeon HD 5450 card? Google has not been my friend ;-)
>>>
>>
>> /dev/video1 is created when you have an actual video input like a video decoder or camera or UVC camera and it would be used with v4l2src (or in the case of i.MX6 CSI, mfw_v4lsrc).
>>
>> videotestsrc should not need a video input device to work though as it is creates its own video data.  What is the error you are seeing?
>>
>> What is your setup?  Board? Yocto version?  Yocto image?
>
> Sorry, I don't make myself clear here. I wanted to try v4l on my Ubuntu development system first - it's this that isn't working:

If you don't already have a v4l2 output device on your dev system,
then you're unlikely to be able to use v4l2sink. I had a quick look
around for virtual v4l2 output devices, but didn't see any (I only
found virtual input devices). I'm not sure that testing v4l2sink on
your dev system is going to tell you much though. It would be roughly
equivalent to testing with xvimagesink or autovideosink.