How can I create a mosaic in Gstreamer? How can I set "sink_0::xpos=0 sink_0::ypos=0 sink_0::alpha=0" in Python?

[Thiago Santos]

On 08/05/2015 07:46 AM, Giacomo D wrote:
> Thanks Thiago!!
>
> I tried it
>
>          self.videotestsrc.link(self.camerafilter0)
>          self.camerafilter0.link(self.videomixer.get_static_pad("sink_0")
>
> but I got
>
>         "self.camerafilter0.link(self.videomixer.get_static_pad("sink_0"))
>         TypeError: argument dest: Expected Gst.Element, but
> got__main__.__main__.GstVideoMIxer2Pad"
>
> Can someone help me??
Ah sorry. The error is pretty clear though, it expects an element but 
you are providing a pad.

You can do:

self.camerafilter0.link(self.videomixer)

  and it will try to find a pad for you, or you can explicitly say which 
pads you want to use with:

self.camerafilter0.get_static_pad("src").link(self.videomixer.get_static_pad("sink_0"))

I'm assuming  that camerafilter0 has a pad named 'src' to be linked.


> Thanks
> Giacomo
>
>
>
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-- 
Thiago Sousa Santos
Senior Multimedia Engineer, Open Source Group
Samsung Research America - Silicon Valley