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tee: Lock mutex before reading the removed flag of the pads

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Otherwise we're not guaranteed to read the very latest value that
another thread might've written in there when the pad was released, and
could instead work with an old value.
This commit is contained in:
Sebastian Dröge 2019-10-25 01:39:05 +03:00 committed by Mathieu Duponchelle
parent 487a3f9a30
commit aa29864317
1 changed files with 2 additions and 0 deletions
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2
plugins/elements/gsttee.c
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@ -899,12 +899,14 @@ gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
}
GST_OBJECT_LOCK (tee);
if (GST_TEE_PAD_CAST (pad)->removed)
ret = GST_FLOW_NOT_LINKED;
if (ret == GST_FLOW_NOT_LINKED && tee->allow_not_linked) {
ret = GST_FLOW_OK;
}
GST_OBJECT_UNLOCK (tee);
gst_object_unref (pad);