<html><body>Hi, thanks... that's exactly what I was affraid of :( I'll file a bugreport, but it won't help me much because I need to post error message.. Is there any way to do it using Gst.Message.new_custom? I tried to convert C code from gstmessage.c: GstMessage *message; GstStructure *structure; structure = gst_structure_new_id (GST_QUARK (MESSAGE_ERROR), GST_QUARK (GERROR), G_TYPE_ERROR, error, GST_QUARK (DEBUG), G_TYPE_STRING, debug, NULL); message = gst_message_new_custom (GST_MESSAGE_ERROR, src, structure); in Python as: struct = Gst.Structure.new_id_empty(GLib.quark_from_string('GST_QUARK_MESSAGE_ERROR')) val1 = GObject.Value() val1.init(GObject.TYPE_ERROR) val1.set_error(GLib.Error()) struct['GST_QUARK_GERROR'] = val1 val2 = GObject.Value() val2.init(GObject.TYPE_STRING) val2.set_string('abc') struct['GST_QUARK_DEBUG'] = val2 e = Gst.Message.new_custom(Gst.MessageType.ERROR, o, struct) but I'm stuck because GLib.GValue doesn't accept GLib.Error.. which is probably similar problem.. Is there any other way to post error message from Element in python? Or perhaps I got it wrong and I should just "raise(GLib.Error(...))" ? but then I wouldn't be able to return Gst.FlowReturn.ERROR... ---------- Původní zpráva ---------- Od: Thibault Saunier <tsaunier@gnome.org> Komu: Discussion of the development of and with GStreamer <gstreamer-devel@lists.freedesktop.org> Datum: 29. 10. 2015 15:46:22 Předmět: Re: python binding - Gst.Message.new_error doesn't know how many arguments it wants <blockquote>Hello, I confirm there is a bug here, and I have the feeling that it is in PyGObject which getting messed up because of the GError which it does not know how to deal with (usually GError are out arguments and are used by PyGObject to throw exceptions). Please open a bug report :) Regards, Thibault On Thu, Oct 29, 2015 at 12:56 PM, Jan Spurný <JSpurny@seznam.cz> wrote: > Hi, > > I encountered really weird behaviour of Gst.Message.new_error - according to > documentation, it should accept 3 arguments - src, error and debug. But if I > pass 3 arguments, it throws an exception complaining that it needs 2 > arguments. When I pass 2 arguments, it suddenly wants 3. I'm stuck, because I > can't use it. > > This is how to reproduce the behaviour: > >>>> import gi >>>> gi.require_version('Gst', '1.0') >>>> from gi.repository import Gst >>>> Gst.init(None) > [] >>>> o = Gst.ElementFactory.make('fakesink') >>>> e = Gst.Message.new_error(o, None, None) > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > TypeError: new_error() takes exactly 2 arguments (3 given) >>>> e = Gst.Message.new_error(o, None) > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > TypeError: new_error() takes exactly 3 argument(s) (2 given) >>>> > > Debian Linux 8.2 amd64, python2.7, gstreamer 1.4.4.0 > > Am I doing something wrong or am I forgetting something? > _______________________________________________ > gstreamer-devel mailing list > gstreamer-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel _______________________________________________ gstreamer-devel mailing list gstreamer-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/gstreamer-devel</blockquote></body></html>