[gstreamer-bugs] [Bug 562170] New: GstBus watch does not receive EOS or SEGMENT_DONE events

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gstreamer (core) | Ver: 0.10.21
           Summary: GstBus watch does not receive EOS or SEGMENT_DONE events
           Product: GStreamer
           Version: 0.10.21
          Platform: Other
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gstreamer (core)
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: justin at affinix.com
         QAContact: gstreamer-bugs at lists.sourceforge.net
     GNOME version: Unspecified
   GNOME milestone: Unspecified


Some events are not delivered to a watcher when using a non-default
GMainContext, like this:

GMainContext *mainContext = g_main_context_new();
GMainLoop *mainLoop = g_main_loop_new(mainContext, FALSE);
...
GSource *source = gst_bus_create_watch(bus);
g_source_attach(source, mainContext);
g_source_set_callback(source, (GSourceFunc)cb_bus_call, data, NULL);

Many events are received once the pipeline runs, just not EOS or SEGMENT_DONE.

If, instead, the default context is used, then it works fine:

GMainLoop *mainLoop = g_main_loop_new(NULL, FALSE);
GMainContext *mainContext = g_main_loop_get_context(mainLoop);
...
GSource *source = gst_bus_create_watch(bus);
g_source_attach(source, mainContext);
g_source_set_callback(source, (GSourceFunc)cb_bus_call, data, NULL);

The callback will receive all of the other events as usual, but this time EOS
and SEGMENT_DONE will also be delivered too.

An extensive workaround is to write your own GSource, which is described here:
http://article.gmane.org/gmane.comp.video.gstreamer.devel/21665

I currently use the above method with success, but probably GStreamer should be
fixed too.


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