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tutorial/progressbin: Fix downcast type
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@ -166,7 +166,7 @@ impl ObjectImpl for ProgressBin {
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// at any time from any thread.
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fn set_property(&self, obj: &glib::Object, id: usize, value: &glib::Value) {
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let prop = &PROPERTIES[id];
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let element = obj.downcast_ref::<gst_base::BaseTransform>().unwrap();
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let element = obj.downcast_ref::<gst::Bin>().unwrap();
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match *prop {
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subclass::Property("output", ..) => {
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