<html> <head> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> </head> <body> Hello, I'm trying to find a correct way to stop a pipeline that mixes two streams of different lengths after the shorter one finished playing. I encountered this problem while trying to fix an old pygst tutorial that uses <tt>videomixer</tt> to overlay a PNG image shown with <tt>imagefreeze</tt> on a video file. I see only two approaches to stop the running pipeline when the video ended: a) change the <tt>num-buffers</tt> property of <tt>imagefreeze</tt> to match the video file length but I see no obvious way to convert video file duration to the number of buffers b) look for EOS event in the probe on video decoder source pad and send it down to <tt>videomixer</tt> from <tt>imagefreeze</tt> (either with <tt>gst_element_send_event</tt> or with <tt>gst_pad_push_event</tt> from src pad) but I'm not sure that this doesn't have any synchronization issues I decided to model use case with two streams of different lengths with two <tt>videotestsrc</tt> and approach b works perfectly fine. When I replaced "infinite" <tt>videotestsrc</tt> with <tt>imagefreeze</tt> for PNG image I found out that application doesn't receive EOS message: <tt>gst_element_send_event(</tt><tt>imagefreeze, gst_event_new_eos())</tt> returns false while <tt>gst_pad_push_event(gst_element_</tt><tt>get_static_pad(imagefreeze, "src"), gst_event_new_eos())</tt> pad never returns at all. I've attached Python code that uses approach b to stop pipeline with pair of <tt>videotestsrc</tt> and with <tt>videotestsrc+</tt><tt>imagefreeze</tt> and PNG file if someone will need to run the code. I doubt that this is due to some bug in <tt>imagefreeze</tt>, so the question is what I'm doing wrong and how to solve this problem correctly? <tt></tt> <pre class="moz-signature" cols="72">-- Best regards, Vladislav Glinsky</pre> </body> </html>