Actually I'm trying to do a similar thing with Qt. Right now I have a 0sec timer in Qtimer - every time it goes off, I manually pull messages from the bus. Problem is both exec() of a Qthread and main loops run can't co-exist. So what do people normally do it such scenarios?<div> </div><div>Thanks in advance! <div class="gmail_quote">On Sun, Jan 30, 2011 at 10:55 PM, Jonathan Lyons <<a href="mailto:higher.orbital@gmail.com">higher.orbital@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">I'm having a lot of difficulty integrating the bus of a Gstreamer pipeline with a Cocoa run loop. Right now I'm using a CFMessagePort to turn a sync signal on one thread into an async event on the main thread. However, this results in weird delays and bugs. Has anyone on this list tried this? Would it be better to run all media operations on another thread which itself runs a glib main loop? I look forward to any response. Thank you. On Jan 30, 2011, at 8:53 AM, Nicolas Bertrand wrote: > Hi, > I use gstreamer via pygst. > with the version 0.10.32 from launchpad dev. ppa I did not success to > execute add_buffer_probe = The callback is never executed. > > This works fine with an older version of python-gst / libgstreamer. (cf. > version details below) > > Code Example : > > def _capture_start_cb(self, wbin, b) : > > pad = self.get_by_name("JpegEncoder").src_pads().next() > > self._grabprobe = pad.add_buffer_probe(self._cb_process_frame, True) > > > > def _cb_process_frame(self, pad, gst_buffer, ret): > > """ Callbak to inidicate that buffer is available from probe """ > > > > pad.remove_buffer_probe(self._grabprobe) > > > return True > > > Did somebody know if it is a misuse or a real problem ( in that case I > fill a bug) ? > > cheers, > nico > > Problem constated Versions : > Ubuntu/lucid (64 bits) > python-gst0.10 0.10.21-1~lucid1 > libgstreamer0.10-0 0.10.32-1~lucid1 > > No problem constated version : > Ubuntu/maverick (32 bits) > python-gst0.10 0.10.19.4-1~lucid1 > libgstreamer0.10-0 0.10.32-1~lucid1 > > > > > > ------------------------------------------------------------------------------ > Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! > Finally, a world-class log management solution at an even better price-free! > Download using promo code Free_Logger_4_Dev2Dev. Offer expires > February 28th, so secure your free ArcSight Logger TODAY! > <a href="http://p.sf.net/sfu/arcsight-sfd2d" target="_blank">http://p.sf.net/sfu/arcsight-sfd2d</a> > _______________________________________________ > gstreamer-devel mailing list > <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> > <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> ------------------------------------------------------------------------------ Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)! Finally, a world-class log management solution at an even better price-free! Download using promo code Free_Logger_4_Dev2Dev. Offer expires February 28th, so secure your free ArcSight Logger TODAY! <a href="http://p.sf.net/sfu/arcsight-sfd2d" target="_blank">http://p.sf.net/sfu/arcsight-sfd2d</a> _______________________________________________ gstreamer-devel mailing list <a href="mailto:gstreamer-devel@lists.sourceforge.net">gstreamer-devel@lists.sourceforge.net</a> <a href="https://lists.sourceforge.net/lists/listinfo/gstreamer-devel" target="_blank">https://lists.sourceforge.net/lists/listinfo/gstreamer-devel</a> </blockquote></div> </div>