This sources\gst-plugins\gst-dsexample\gstdsexample_optimized.cpp . source code and follow link is familar for me, could you @yuweiw reproduce it by tgz ? I change osd_sink_pad_buffer_probe() only, make && ./deepstream-test1-app dstest1_config.yml
dp6.3-test1.tar.gz (18.9 KB)