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seek: Make the seek-bar insensitive for DVD menus

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This commit is contained in:
Sebastian Dröge 2012-02-20 15:29:49 +01:00
parent e87f71245f
commit a24c72ccca
1 changed files with 49 additions and 0 deletions
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49
tests/examples/seek/seek.c
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@ -1606,6 +1606,7 @@ stop_cb (GtkButton * button, gpointer data)
connect_bus_signals (pipeline);
}
#endif
gtk_widget_set_sensitive (GTK_WIDGET (hscale), TRUE);
}
return;
@ -2648,6 +2649,53 @@ msg_step_done (GstBus * bus, GstMessage * message, GstPipeline * data)
message_received (bus, message, data);
}
static void
msg (GstBus * bus, GstMessage * message, GstPipeline * data)
{
GstNavigationMessageType nav_type;
nav_type = gst_navigation_message_get_type (message);
switch (nav_type) {
case GST_NAVIGATION_MESSAGE_COMMANDS_CHANGED:{
GstQuery *query;
gboolean res;
/* Heuristic to detect if we're dealing with a DVD menu */
query = gst_navigation_query_new_commands ();
res = gst_element_query (GST_ELEMENT (GST_MESSAGE_SRC (message)), query);
if (res) {
gboolean is_menu = FALSE;
guint i, n;
if (gst_navigation_query_parse_commands_length (query, &n)) {
for (i = 0; i < n; i++) {
GstNavigationCommand cmd;
if (!gst_navigation_query_parse_commands_nth (query, i, &cmd))
break;
is_menu |= (cmd == GST_NAVIGATION_COMMAND_ACTIVATE);
is_menu |= (cmd == GST_NAVIGATION_COMMAND_LEFT);
is_menu |= (cmd == GST_NAVIGATION_COMMAND_RIGHT);
is_menu |= (cmd == GST_NAVIGATION_COMMAND_UP);
is_menu |= (cmd == GST_NAVIGATION_COMMAND_DOWN);
}
}
gtk_widget_set_sensitive (GTK_WIDGET (hscale), !is_menu);
} else {
g_assert_not_reached ();
}
gst_query_unref (query);
break;
}
default:
break;
}
}
static void
connect_bus_signals (GstElement * pipeline)
{
@ -2692,6 +2740,7 @@ connect_bus_signals (GstElement * pipeline)
pipeline);
g_signal_connect (bus, "sync-message::step-done",
(GCallback) msg_sync_step_done, pipeline);
g_signal_connect (bus, "message", (GCallback) msg, pipeline);
gst_object_unref (bus);
}