element not working with udpsrc

Yogesh Tyagi yogesh.bit2006 at gmail.com
Wed Feb 19 01:23:47 PST 2014


In my video sink element I wait for an event which is generated only when
some data flows through the video pad.This element works fine with file
based playback but is not working with udpsrc.

gst-launch udpsrc uri=udp:// !  demux name=d ! queue !
mpeg2_viddec ! queue max-size-buf
fers=3 ! vidsink d. ! queue ! audio_sink

I get following message on my console:

Pipeline is live and does not need PREROLL

What does this message mean? Is there any difference in state change/data
flow between udpsrc and filesrc element?

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