Does "about-to-finish" signal work for video files?
Stefan Kost
ensonic at hora-obscura.de
Sun Feb 26 12:02:05 PST 2012
Am 24.02.2012 00:41, schrieb Rossana Guerra:
> Hello everyone, I am trying to solve the gapless issue programming the event
> triggered for that signal. I am handling video files (.avi)
> The code is very straightforward andn simple, nonetheless it doesn't work.
> It plays the first and for the second one it throws the following message:
>
> (playbin:4324): GLib-GObject-CRITICAL **: g_object_set: assertion `G_IS_OBJECT
> (object)' failed
run your app as
G_DEBUG="fatal_critials" gdb --args ./myapp <options>
this will terminate the app on that error. WHen that happend type "bt" to get a
backtrace and you see where the error happend.
Stefan
>
> Any suggestion? thansks
>
> Rossana
>
> Here is the code:
>
>
> void about_to_finish_cb (GstElement * element, gpointer * uri)
> {
> // uri has the name of the next avi file
>
> gchar* uri2 = (gchar*)uri;
> g_object_set (G_OBJECT (element), "uri",uri2, NULL);
> g_object_set (G_OBJECT (element),
> "suburi","file:///home/rossana/video3.srt", NULL);
>
> }
>
> gint main (gint argc, gchar *argv[])
> {
> GMainLoop *loop = 0;
> GstElement *play = 0;
> GstBus *bus = 0;
>
>
> /* set up */
> gst_init (&argc, &argv);
>
> loop = g_main_loop_new (NULL, FALSE);
> play = gst_element_factory_make ("playbin2", "play");
>
> g_object_set (G_OBJECT (play), "uri","file:///home/rossana/video1.avi", NULL);
>
> bus = gst_pipeline_get_bus (GST_PIPELINE (play));
> gst_bus_add_watch (bus, bus_call, loop);
> gst_object_unref (bus);
>
> char uri_next[] = "file:///home/rossana/video3.avi";
> g_signal_connect (play, "about-to-finish", G_CALLBACK
> (about_to_finish_cb),uri_next);
> gst_element_set_state (play, GST_STATE_PLAYING);
>
> /* now run */
> g_main_loop_run (loop);
>
> /* also clean up */
> gst_element_set_state (play, GST_STATE_NULL);
> gst_object_unref (GST_OBJECT (play));
>
> return 0;
> }
>
>
>
>
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