The amount of checking to be done when linking pads.
GST_PAD_LINK_CHECK_CAPS and GST_PAD_LINK_CHECK_TEMPLATE_CAPS are mutually exclusive. If both are specified, expensive but safe GST_PAD_LINK_CHECK_CAPS are performed.
GST_PAD_LINK_CHECK_CAPS
GST_PAD_LINK_CHECK_TEMPLATE_CAPS
Only disable some of the checks if you are 100% certain you know the link will not fail because of hierarchy/caps compatibility failures. If uncertain, use the default checks (%GST_PAD_LINK_CHECK_DEFAULT) or the regular methods for linking the pads.