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utils: check the correct element's state on ghosting pads

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Checking the current element's state when we're adding pads to
the parent element is checking the wrong thing.

Silences a 'attempting to add an inactive pad to a running element'
warning when adding a ghost pad to a running parent bin of the parent
bin of the element.

https://bugzilla.gnome.org/show_bug.cgi?id=764176
This commit is contained in:
Matthew Waters 2016-04-04 10:28:18 +00:00
parent f876306638
commit e8c8c27ae8
2 changed files with 53 additions and 5 deletions
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10
gst/gstutils.c
View file

@ -1387,20 +1387,20 @@ ghost_up (GstElement * e, GstPad * pad)
gpad = gst_ghost_pad_new (name, pad);
g_free (name);
GST_STATE_LOCK (e);
gst_element_get_state (e, &current, &next, 0);
GST_STATE_LOCK (parent);
gst_element_get_state (GST_ELEMENT (parent), &current, &next, 0);
if (current > GST_STATE_READY || next == GST_STATE_PAUSED)
if (current > GST_STATE_READY || next >= GST_STATE_PAUSED)
gst_pad_set_active (gpad, TRUE);
if (!gst_element_add_pad ((GstElement *) parent, gpad)) {
g_warning ("Pad named %s already exists in element %s\n",
GST_OBJECT_NAME (gpad), GST_OBJECT_NAME (parent));
gst_object_unref ((GstObject *) gpad);
GST_STATE_UNLOCK (e);
GST_STATE_UNLOCK (parent);
return NULL;
}
GST_STATE_UNLOCK (e);
GST_STATE_UNLOCK (parent);
return gpad;
}

48
tests/check/gst/gstutils.c
View file

@ -1701,6 +1701,52 @@ GST_START_TEST (test_element_get_compatible_pad_request)
GST_END_TEST;
GST_START_TEST (test_element_link_with_ghost_pads)
{
GstElement *sink_bin, *sink2_bin, *pipeline;
GstElement *src, *tee, *queue, *queue2, *sink, *sink2;
GstMessage *message;
GstBus *bus;
fail_unless (pipeline = gst_pipeline_new (NULL));
fail_unless (sink_bin = gst_bin_new (NULL));
fail_unless (sink2_bin = gst_bin_new (NULL));
fail_unless (src = gst_element_factory_make ("fakesrc", NULL));
fail_unless (tee = gst_element_factory_make ("tee", NULL));
fail_unless (queue = gst_element_factory_make ("queue", NULL));
fail_unless (sink = gst_element_factory_make ("fakesink", NULL));
fail_unless (queue2 = gst_element_factory_make ("queue", NULL));
fail_unless (sink2 = gst_element_factory_make ("fakesink", NULL));
gst_bin_add_many (GST_BIN (pipeline), src, tee, queue, sink, sink2_bin, NULL);
fail_unless (gst_element_link_many (src, tee, queue, sink, NULL));
fail_unless (gst_element_set_state (pipeline,
GST_STATE_PLAYING) == GST_STATE_CHANGE_ASYNC);
/* wait for a buffer to arrive at the sink */
bus = gst_element_get_bus (pipeline);
message = gst_bus_poll (bus, GST_MESSAGE_ASYNC_DONE, -1);
gst_message_unref (message);
gst_object_unref (bus);
gst_bin_add_many (GST_BIN (sink_bin), queue2, sink2, NULL);
fail_unless (gst_element_link (queue2, sink2));
gst_bin_add (GST_BIN (sink2_bin), sink_bin);
/* The two levels of bins with the outer bin in the running state is
* important, when the second ghost pad is created (from this
* gst_element_link()) in the running bin, we need to activate the
* created ghost pad */
fail_unless (gst_element_link (tee, queue2));
fail_unless (gst_element_set_state (pipeline,
GST_STATE_NULL) == GST_STATE_CHANGE_SUCCESS);
gst_object_unref (pipeline);
}
GST_END_TEST;
static Suite *
gst_utils_suite (void)
{
@ -1729,6 +1775,7 @@ gst_utils_suite (void)
#endif
tcase_add_test (tc_chain, test_element_found_tags);
tcase_add_test (tc_chain, test_element_link);
tcase_add_test (tc_chain, test_element_link_with_ghost_pads);
tcase_add_test (tc_chain, test_element_unlink);
tcase_add_test (tc_chain, test_element_get_compatible_pad_request);
tcase_add_test (tc_chain, test_set_value_from_string);
@ -1739,6 +1786,7 @@ gst_utils_suite (void)
tcase_add_test (tc_chain, test_read_macros);
tcase_add_test (tc_chain, test_write_macros);
return s;
}