clockoverlay

Wolfgang_myname wolfgang at wspiess.eu
Sun Nov 9 06:36:49 PST 2014


Hi,

I am trying to get a clockoverlay working on my raspberry using gstreamer
version 1.2.0.

On raspberry A (sender) I found that code working:
raspivid -t 0 -h 840 -w 1140 -fps 25 -hf -b 2000000 -o - | gst-launch-1.0 -v
fdsrc ! h264parse ! rtph264pay config-interval=1 pt=96 ! gdppay !
tcpserversink host=192.168.17.101 port=5000 &

On raspberry B (receiver with a connected hdmi TV) I found that code
working:
gst-launch-1.0 -v tcpclientsrc host=192.168.17.101 port=5000 ! gdpdepay !
rtph264depay ! h264parse ! omxh264dec ! autovideosink sync=false &

It's running fast and with low latency.

Final I want to have a date/timestamp on the video user clockoverlay. I
tryed something like

gst-launch-1.0 -v tcpclientsrc host=192.168.17.101 port=5000  ! gdpdepay !
rtph264depay  ! h264parse ! omxh264dec ! clockoverlay halignment=left
valignment=top text="Stream time:" shaded-background=true  auto-resize=true
time-format="%d.%m.%y %H:%M:%S" ! autovideosink &

but ended with a freezen screen. What do I do wrong?

I tryed with an existing file and that worked, so it cannot be a problem of
gstreamer version, or am I wrong?

gst-launch-1.0 filesrc location=Micky.m4v ! qtdemux ! h264parse ! omxh264dec
! clockoverlay halignment=left valignment=top text="Stream time:"
shaded-background=true  auto-resize=true time-format="%d.%m.%y %H:%M:%S" !
autovideosink

Please help.
Wolfgang
 

 



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