[gst-devel] Introducing delay in a video via a queue

[Prins, M.J. (Martin)]

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

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