<html><head><meta http-equiv="content-type" content="text/html; charset=us-ascii"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">It's hard to diagnose without the actual pipeline, but it seems like a prerolling problem. In a GStreamer pipeline (in default conditions at least) every sink element needs to receive a buffer for the pipeline to transition to the PLAYING state. Otherwise it will get stuck in the transition in a way similar as you describe. You can either:<div><br></div><div>1. Use queues after the tee, like:</div><div><br></div><div>rtp stream ... ! tee name=t t. ! <b>queue</b> ! appsink t. ! <b>queue</b> ! appsink</div><div><br></div><div>As a rule of thumb, you always want to place queues at the src pads of an element with multiple outputs, like the tee.</div><div><br></div><div>2. Set async=false in the appsinks, which will instruct the pipeline that it doesn't need to wait for these appsinks to receive buffers to actually start PLAYING.</div><div><br></div><div>Hope it helps</div><div><br></div><div><br></div><div>Michael</div><div>www.ridgerun.com<br><div><br><blockquote type="cite"><div>On 1 Sep 2023, at 05:49, Centraladmin via gstreamer-devel <gstreamer-devel@lists.freedesktop.org> wrote:</div><br class="Apple-interchange-newline"><div><div>Hello here, <br><br>In a pipeline, after decoding the input pictures from a RTP stream, I put a "tee" element. <br><br>The first of the "branch" of this tee re-encodes the picture and then sends the encoded packet to the application thru an appskink element.<br><br>The second "branch" of the tee is connected to another encoder and then connected also to the application with another appsink element.<br><br>My problem is that as soon I declare the second appsink element (without even connecting it), the pipeline is stuck. Without creaing the second appsink, the first branch is working.<br><br>Any ideas ? Is is possible to insert multiple appsink in 1 single pipeline ? Any properties that I can try?<br><br>Thanks for ideas and help,<br>Sylvain.<br></div></div></blockquote></div><br></div></body></html>