Overlay peak value on video
Paul Barber
paul.barber at oncology.ox.ac.uk
Fri Mar 6 03:30:01 PST 2015
Hello.
What do you think would be the best way to write an element that makes
some measurement on the video buffer (say the peak RGB values) and then
overlays that measurement onto the video itself?
Making the measurement is no problem. I have used the template filter
plugin, access the buffer and detect the peak values in the video chain
function.
I am also aware of the textoverlay element which will overlay static
text or via the text sink .
Can I make an element that will act as a text src for the textoverlay
text sink?
Can I push text out on a text src pad from within the video chain function?
Or is there a better way?
Cheers,
Paul.
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