<div class="gmail_quote">On Tue, Nov 16, 2010 at 6:28 PM, David Schleef <<a href="mailto:ds@entropywave.com">ds@entropywave.com</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> On Tue, Nov 16, 2010 at 10:28:23AM -0200, Tiago Katcipis wrote: > but to make use of the async API it is needed a GMainLoop, and there is the > problem :-), gst plugins are not aware if there is a main loop running, it > is not mandatory. Elements that require a GMainLoop create a thread and run a GMainLoop there. One example is souphttpsrc. </blockquote><div> That approach doesn't bring the same hazards of gst_bus_poll ? <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBus.html#gst-bus-poll">http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBus.html#gst-bus-poll</a> "You should never use this function, since it is pure evil. This is especially true for GUI applications based on Gtk+ or Qt, but also for any other non-trivial application that uses the GLib main loop. As this function runs a GLib main loop, any callback attached to the default GLib main context may be invoked. This could be timeouts, GUI events, I/O events etc.; even if <a class="link" href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBus.html#gst-bus-poll" title="gst_bus_poll ()"><code class="function">gst_bus_poll()</code></a> is called with a 0 timeout. Any of these callbacks may do things you do not expect, e.g. destroy the main application window or some other resource; change other application state; display a dialog and run another main loop until the user clicks it away. In short, using this function may add a lot of complexity to your code through unexpected re-entrancy and unexpected changes to your application's state." </div><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> David ------------------------------------------------------------------------------ Beautiful is writing same markup. Internet Explorer 9 supports standards for HTML5, CSS3, SVG 1.1, ECMAScript5, and DOM L2 & L3. Spend less time writing and rewriting code and more time creating great experiences on the web. Be a part of the beta today <a href="http://p.sf.net/sfu/msIE9-sfdev2dev" target="_blank">http://p.sf.net/sfu/msIE9-sfdev2dev</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> -- <a href="http://www.getgnulinux.org/windows">http://www.getgnulinux.org/windows</a>