Requesting a simple example using fdsrc and fdsink

[Piper984]

Hello forum,

I have a few Gstreamer based coming up where I'd like to use stdin/stdout or
named pipes to sink and source video.  I've not had much luck in getting a
simple hello world type pipeline working. Hopefully someone can take a look
at this with me and give me some pointers.

I'd like to see how I could take a very simple pipeline like this (which
works find on Ubuntu 14.04)...



... and split into two parts. Part one: pipe the output of videotestsrc to
stdout, and then Part two: pipe stdin to the autovideosink element.

I tried this: 



But when I try this I get the following error message:



I've tried searching for better syntax but so far no luck in getting
anything to work.  If someone could take a look and point me in the right
direction it would be super helpful.  I have a few apps I need to develop
where using named pipes is going to be very handy so hopefully figuring out
the proper syntax and usage of fdsrc and fdsink will get me to where I need
to be.


Thanks and regards!
 



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