Negotiates src pad caps with downstream elements. Unmarks GST_PAD_FLAG_NEED_RECONFIGURE in any case. But marks it again if #GstAggregatorClass.negotiate() fails.
%TRUE if the negotiation succeeded, else %FALSE.
1.18
See Implementation
Negotiates src pad caps with downstream elements. Unmarks GST_PAD_FLAG_NEED_RECONFIGURE in any case. But marks it again if #GstAggregatorClass.negotiate() fails.