There is no update from you for a period, assuming this is not an issue anymore. Hence we are closing this topic. If need further support, please open a new one. Thanks
- there already is a measure delay meothod. plesse refer to measure delay .
- if you still want to use custom probe, you can add a probe function on one plugin’s sink pad and save the incoming time of the buffers, then add a probe function on the plguin 's src pad and save the outcoming time of the buffers, time difference should be this plugin 's delay time.