I have my C code which uses GStreamer.I have just installed gst-launch-1.0 on my Ubuntu 14.04.5 LTS,after that i verified that i have a working installation by command
gst-inspect-1.0 fakesrc
which print out a bunch of information about this.Also checked with
gst-launch-1.0 -v fakesrc silent=false num-buffers=3 ! fakesink silent=false
command it produces output.But when i try to test video displayed by running
gst-launch-1.0 videotestsrc ! videoconvert ! autovideosink
it is giving me below logs
Setting pipeline to PAUSED ...
libEGL warning: DRI2: xcb_connect failed
libEGL warning: DRI2: xcb_connect failed
libEGL warning: GLX: failed to load GLX
ERROR: Pipeline doesn't want to pause.
ERROR: from element /GstXvImageSink:autovideosink0-actual-sink-xvimage: Could not initialise Xv output
Additional debug info:
xvimagesink.c(1765): gst_xvimagesink_open (): /GstXvImageSink:autovideosink0-actual-sink-xvimage:
Could not open display (null)
Setting pipeline to NULL ...
Freeing pipeline ...
please HELP.