On 03/15/2016 08:10 AM, Ran Shalit wrote:
> Hello,
>
> This is a bit offtopic, so I will understand if you rather not discuss that...
>
> I am trying to use gstreamer with v4l2 vivi device,
> I first check the capabilities with
>
> gst-launch-1.0 --gst-debug=v4l2src:5 v4l2src device="/dev/video0" !
> fakesink 2>&1
>
> and it gives many capabilities such as the following:
>
> video/x-raw-yuv, format=(string)YUY2, framerate=(fraction)[1/1000,
> 1000/1], width=(int) 640, height=(int)180, interlaced=(boolean)true
>
> So I tried to run as following:
>
> gst-launch-0.10 v4l2src device="/dev/video0" !
> video/x-raw,width=640,height=180,framerate=30 ! autovideosink
>
> But it keeps giving me auto negotiation error -4.
> Trying to give other values did not help neither.
>
> It is probaby more a gstreamer issue, but if someone is familiar and
> can shed some light on this will will help.
Actually, I suspect that vivi is the culprit. It had some non-standard
behavior that might mess up gstreamer. One of the (many) reasons it was
replaced with vivid.
Regards,
Hans
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