<div dir="ltr"><div dir="ltr">Hello all, I am trying a program with a dynamic pipeline. In this program, an appsink data branch will be linked and unlinked to the tee dynamically. The pipeline looks like: / queue --- fakesink videotestsrc --- x264enc --- tee --- \ queue --- appsink At the beginning of the program, there is only the fakesink data branch.Then another thread is created and does the following process periodically:1. If the appsink branch is not linked, the thread will create elements and link them to the tee. 2. If the appsink branch is linked, the thread will unlink them from the tee and release elements. When unlinking the appsink branch, I set the queue and appsink to GST_STATE_NULL before removing them from the pipeline: gst_element_set_state(queue_appsink, GST_STATE_NULL); gst_element_set_state(appsink, GST_STATE_NULL); gst_bin_remove_many(GST_BIN(pipeline), queue_appsink, appsink, NULL); However, GStreamer complains the states of elements are not NULL when disposing them randomly…e.g.:Trying to dispose element queue10, but it is in PLAYING instead of the NULL state.Trying to dispose element appsink9, but it is in READY instead of the NULL state. This example can be run and reproduce this problem: <a href="https://dci2l49av9uew.cloudfront.net/gst_test.cpp">https://dci2l49av9uew.cloudfront.net/gst_test.cpp</a> Would anyone help to figure out how I can fix this problem?Thanks for your help </div></div>