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timeline: fix paste ownership

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The method steals ownership of `copied_from`, so should be responsible
for unreffing it. Also make sure we fail when `layer != -1`, since this
functionality is not supported.
This commit is contained in:
Henry Wilkes 2019-12-20 11:20:49 +00:00 committed by Thibault Saunier
parent 8ad9952cdb
commit 615bf9e47a
1 changed files with 6 additions and 3 deletions
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9
ges/ges-timeline.c
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@ -2779,6 +2779,7 @@ ges_timeline_paste_element (GESTimeline * timeline,
CHECK_THREAD (timeline);
element_class = GES_TIMELINE_ELEMENT_GET_CLASS (element);
/* steal ownership of the copied element */
copied_from = ges_timeline_element_get_copied_from (element);
if (!copied_from) {
@ -2789,7 +2790,7 @@ ges_timeline_paste_element (GESTimeline * timeline,
if (!element_class->paste) {
GST_ERROR_OBJECT (element, "No paste vmethod implemented");
gst_object_unref (copied_from);
return NULL;
}
@ -2800,13 +2801,15 @@ ges_timeline_paste_element (GESTimeline * timeline,
if (layer_priority != -1) {
GST_WARNING_OBJECT (timeline,
"Only -1 value for layer priority is supported");
gst_object_unref (copied_from);
return NULL;
}
res = element_class->paste (element, copied_from, position);
g_clear_object (&copied_from);
gst_object_unref (copied_from);
return g_object_ref (res);
return res ? g_object_ref (res) : res;
}
/**