<table cellspacing='0' cellpadding='0' border='0' ><tr><td valign='top' style='font: inherit;'>Hi, I am working with the RTSP streaming  using  Darwin server.  When tring to stream getting following errors. 1. With gst-launch  rtspsrc location=rtsp://172.22.67.203/sample_100kbit.mp4 ! rtpmp4vdepay ! ffdec_mpeg4 ! ffmpegcolorspace ! xvimagesink sync=false I am getting these errors. Setting pipeline to PAUSED ... ERROR: Pipeline doesn't want to pause. ERROR: from element /pipeline0/xvimagesink0: Could not initialise Xv output Additional debug info: xvimagesink.c(1639): gst_xvimagesink_xcontext_get (): /pipeline0/xvimagesink0: Could not open display Setting pipeline to NULL ... FREEING pipeline ... 2. Get the attached file (Err_log) with debug msgs enabled for the same pipeline. gst-launch  --gst-debug=3 --gst-debug-no-color rtspsrc location=rtsp://172.22.67.203/sample_100kbit.mp4 ! rtpmp4vdepay ! ffdec_mpeg4 ! ffmpegcolorspace ! xvimagesink sync=false 3. When i try to store streamed file by using filesink plugin,   gst-launch  rtspsrc location=rtsp://172.22.67.203/sample_100kbit.mp4 ! rtpmp4vdepay ! filesink location=~/sample_100kbit.mp4 file is getting created with some bytes. But however when I try to play the stored file, getting the same error (Could not initialize Xv output) 4. When i changed the xvimagesink with some another video sink. gst-launch  rtspsrc location=rtsp://172.22.67.203/sample_100kbit.mp4 ! rtpmp4vdepay ! ffdec_mpeg4 ! gconfvideosink getting the following error Setting pipeline to PAUSED ... ERROR: Pipeline doesn't want to pause. ERROR: from element /autovideosink0-actual-sink-xvimage: Could not initialise Xv output Additional debug info: xvimagesink.c(1639): gst_xvimagesink_xcontext_get (): /autovideosink0-actual-sink-xvimage: Could not open display Setting pipeline to NULL ... FREEING pipeline ... Could anybody please let me what can be the problems. Regards, KumarA </td></tr></table>