<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> <HTML> <HEAD> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <META NAME="Generator" CONTENT="MS Exchange Server version 6.5.7654.12"> <TITLE>Introducing delay in a video via a queue</TITLE> </HEAD> <BODY>  Hello, I want to introduce a fixed amount of delay in a generated video signal (for instance 4 secs). What I am currently trying is creating two video signals signals with a timeoverlay, and combining these in the videomixer, such that I can easily see the introduced delay. For one of the generated signals I insert a queue, which I should be able to introduce the delay with (via the min-treshold-time parameter). However when I launch the setup, the displayed clocks are still in sync. What am I doing wrong? I use the following command: gst-launch-0.10 -vvv videomixer name=mix ! ffmpegcolorspace ! ximagesink videotestsrc ! video/x-raw-yuv, width=350,height=250 ! timeoverlay ! videobox border-alpha=0 top=-50 left=-50 ! mix. \ videotestsrc pattern=0 ! video/x-raw-yuv, width=350,height=250 ! timeoverlay ! queue max-size-buffers=0 max-size-time=0 max-size-bytes=0 min-threshold-time=4000000000 ! videobox border-alpha=0 top=-50 left=-450 ! mix. Kind regards, Martin Prins This e-mail and its contents are subject to the DISCLAIMER at http://www.tno.nl/disclaimer/email.html</BODY> </HTML>