Hi, I got a problem when using gst-rtsp-server. The goal of my application is to dynamiclly add/remove elements/pipelines after tee. The pipeline can be simplified like this: rtpsrc->rphh264depay->h264parse->tee ->... ->... The method to add and remove element is according to the code on github.(<a href="https://github.com/sdroege/gst-snippets/blob/master/dynamic-tee-vsink.c">https://github.com/sdroege/gst-snippets/blob/master/dynamic-tee-vsink.c</a>) When I link fakesink, filesink and autovideosink dynamiclly with tee, they work fine together all. But when linking gst-rtsp-server, something went wrong. the pipeline is like this: rtpsrc->rphh264depay->h264parse->tee->queue->inter_sink/inter_src->queue->rtph264pay->... [ my pipeline ] [ gst-rtsp-server pipeline... ] If there's no stream playing in my pipeline, it's ok when I view with vlc. However, if I firstly link [queue->avdec_h264->autovideosink] to the tee and the autovideosink shows the media well. Then I dynamiclly link the rtsp-server with tee like the pipeline shown above and view it with vlc. The stream data is blocked and I have to wait about 10-30s when I see the stream in vlc. And then, the latency of stream shown in vlc may be 10s or more, and the media in autovideosink is stopped. After I closed vlc, the autovideosink plays normally again. I don't know where the problem is. Do you have any idea with it? I use gstreamer 1.13.91. Thnaks. Junjie Yuan Shanghai, China.