<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> </head> <body> <div class="moz-cite-prefix">You cannot expect any messages on the bus after you have set the pipeline to NULL. Your EOS message will be dropped on the floor and `self._pipeline.send_event(Gst.Event.new_eos())` would very likely return FALSE indicating a failure to send the message. Cheers -Matt On 4/11/19 7:46 pm, Ravi Modha wrote: </div> <blockquote type="cite" cite="mid:CAC0Vn7sWeOQYp9NhOY5p_Y_FkprHa_epv1ZkPB9qX9mYMsgn5w@mail.gmail.com"> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <div dir="ltr"> <div> I am new to GStreamer and I have created a small example where I am recording the webcam and used app sink to get the sample but when I try to stop the pipeline by setting its state to null and sending EOS event, my bus callback function never gets called for the EOS. And because of this memory leak is happening. Guys, Please help me import gi import time import threading gi.require_version('Gst', '1.0') gi.require_version('Gtk', '3.0') gi.require_version('GstApp', '1.0') from gi.repository import GObject, Gst, Gtk, GstApp import signal Gst.init(None) class Main: shutdown = False <pre style="white-space:pre-wrap" lang="plaintext">def __init__(self): signal.signal(signal.SIGINT, self.keyboardInterruptHandler) self._pipeline = Gst.parse_launch("avfvideosrc name=avfvideosrc ! x264enc name=x264enc ! appsink name=appsink max-buffers=1 drop=false sync=false emit- signals=true wait-on-eos=false") bus = self._pipeline.get_bus() bus.add_signal_watch() bus.connect("message::eos", self._on_eos_from_sink_pipeline) bus.connect("message", self.on_status_changed) appsink = self._pipeline.get_by_name('appsink') appsink.connect('new-sample', self.on_new_sample) appsink.connect('eos', self.eos) #bus.connect('message', self.on_status_changed) self._pipeline.set_state(Gst.State.PLAYING) def on_new_sample(self, appsink): return Gst.FlowReturn.OK def _on_eos_from_sink_pipeline(self, _bus, _message): print("Got EOS from sink pipeline") exit() def eos(self, sink): print("SINK EOS") return True def on_status_changed(self, bus, message): print('Status: ', message.type) print('Object: ', message.src) print('Parsed Message: ', message.parse_state_changed()) def keyboardInterruptHandler(self,signal, frame): print("KeyboardInterrupt (ID: {}) has been caught. Cleaning up...".format(signal)) self.shutdown = True self.stopFetching() def stopFetching(self): print("AT THE START OF STOP FETCHING") self._pipeline.set_state(Gst.State.NULL) self._pipeline.send_event(Gst.Event.new_eos()) print("AT THE END OF STOP FETCHING") </pre> <pre style="white-space:pre-wrap" lang="plaintext">start = Main() Gtk.main()`</pre> -- <div dir="ltr"> <div dir="ltr"> <div style="font-size:12.8px"> <div>Thanks & Regards,</div> </div> </div> </div> </div> -- <div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"> <div dir="ltr"> <div style="color:rgb(136,136,136);font-size:12.8px"> <div>Thanks & Regards,</div> <div> </div> </div> <div>Ravi Modha</div> <div style="color:rgb(136,136,136)"><a href="mailto:ravi.modha@tudip.com" style="color:rgb(17,85,204)" target="_blank" moz-do-not-send="true">ravi.modha@tudip.com</a> | Skype: <a href="mailto:ravi.modha@tudip.com" style="color:rgb(17,85,204)" target="_blank" moz-do-not-send="true">ravi.modha@tudip.com</a></div> <div style="color:rgb(136,136,136)"> </div> <div style="color:rgb(136,136,136);font-size:12.8px"><a href="https://tudip.com/" style="color:rgb(17,85,204);font-size:12.8px" target="_blank" moz-do-not-send="true"><img src="https://drive.google.com/a/tudip.com/uc?id=1zJSxP1wMlTI9XJDYbJGWCkGHmI5b-YcL&export=download" moz-do-not-send="true"></a> <a href="https://in.linkedin.com/company/tudip-technologies-pvt-ltd-" style="color:rgb(17,85,204);font-size:12.8px" target="_blank" moz-do-not-send="true"><img src="https://drive.google.com/a/tudip.com/uc?id=1bePNWXohkGCJvWAIXBS28IrhzeOdr-EM&export=download" moz-do-not-send="true"></a><a href="https://clutch.co/profile/tudip-technologies" style="color:rgb(17,85,204);font-size:12.8px" target="_blank" moz-do-not-send="true"><img src="https://drive.google.com/a/tudip.com/uc?id=1x29SoNoRpMwAqn0F88BtoDNmYWzp47_D&export=download" moz-do-not-send="true"></a><a href="https://www.goodfirms.co/companies/view/4439/tudip-technologies-pvt-ltd" style="color:rgb(17,85,204);font-size:12.8px" target="_blank" moz-do-not-send="true"><img src="https://drive.google.com/a/tudip.com/uc?id=1jd6xtL-FoNWGuQH6U78g02hyYKh4-0Wa&export=download" moz-do-not-send="true"></a> <a href="https://www.facebook.com/TudipTechnologies" style="color:rgb(17,85,204);font-size:12.8px" target="_blank" moz-do-not-send="true"><img src="https://drive.google.com/a/tudip.com/uc?id=1X-lj_gJC1T7qEB1uYIw2GivNd8F_Eb0C&export=download" moz-do-not-send="true"></a> <a href="https://twitter.com/TudipTech" style="color:rgb(17,85,204);font-size:12.8px" target="_blank" moz-do-not-send="true"><img src="https://drive.google.com/a/tudip.com/uc?id=1YGDJSRzIZOvM0VZXzhokH-uGcw9umlH0&export=download" moz-do-not-send="true"></a> <a href="https://www.youtube.com/channel/UCoNPz2mbzNF_AZhLQEzuWCg" style="color:rgb(17,85,204);font-size:12.8px" target="_blank" moz-do-not-send="true"><img src="https://drive.google.com/a/tudip.com/uc?id=12WOVgEFKgxD86LKWFaZN7rJF9VxKV3zH&export=download" moz-do-not-send="true"></a></div> <div style="color:rgb(136,136,136);font-size:12.8px"><a href="https://tudip.com/" style="color:rgb(17,85,204)" target="_blank" moz-do-not-send="true">www.tudip.com</a> | <a href="https://tudip.com/tudip-technologies-in-news/" style="color:rgb(17,85,204)" target="_blank" moz-do-not-send="true">Tudip in News</a> </div> <div style="color:rgb(136,136,136);font-size:12.8px"><a href="callto:+91%2020%204674%200881" style="color:rgb(17,85,204)" target="_blank" moz-do-not-send="true">+91 20 4674 0881</a> | <a href="callto:+1%20408%20216%208162" style="color:rgb(17,85,204)" target="_blank" moz-do-not-send="true">+1 408 216 8162</a></div> </div> </div> </div> <fieldset class="mimeAttachmentHeader"></fieldset> <pre class="moz-quote-pre" wrap="">_______________________________________________ gstreamer-devel mailing list <a class="moz-txt-link-abbreviated" href="mailto:gstreamer-devel@lists.freedesktop.org">gstreamer-devel@lists.freedesktop.org</a> <a class="moz-txt-link-freetext" href="https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel">https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</a></pre> </blockquote> </body> </html>