Result values from gst_pad_link and friends.
GST_PAD_LINK_OK
link succeeded
GST_PAD_LINK_WRONG_HIERARCHY
pads have no common grandparent
GST_PAD_LINK_WAS_LINKED
pad was already linked
GST_PAD_LINK_WRONG_DIRECTION
pads have wrong direction
GST_PAD_LINK_NOFORMAT
pads do not have common format
GST_PAD_LINK_NOSCHED
pads cannot cooperate in scheduling
GST_PAD_LINK_REFUSED
refused for some reason
Result values from gst_pad_link and friends. GST_PAD_LINK_OK link succeeded GST_PAD_LINK_WRONG_HIERARCHY pads have no common grandparent GST_PAD_LINK_WAS_LINKED pad was already linked GST_PAD_LINK_WRONG_DIRECTION pads have wrong direction GST_PAD_LINK_NOFORMAT pads do not have common format GST_PAD_LINK_NOSCHED pads cannot cooperate in scheduling GST_PAD_LINK_REFUSED refused for some reason