Introducing delay in a video via a queue
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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