Graphical overlay onto video stream - Raspberry Pi Forums

are there examples of overlaying data on live video stream record / encode it?

wanting take serial data stream , start recording , overlay maybe logo , graphics such graphical rev counter , other values..

suggestions whether possible, , if if has done save me work

in advance.

david

hi there,

can free software avconv. specify 2 inputs , 1 output : https://ffmpeg.org/ffmpeg-filters.html#overlay-1

if need generate overlay on fly, use image magik : http://www.imagemagick.org/script/index.php

sudo apt-get install libav-tools imagemagick

hope helps
matt

raspberrypi