Computes the combined flow return for the pads in it.
The #GstFlowReturn parameter should be the last flow return update for a pad
in this #GstFlowCombiner. It will use this value to be able to shortcut some
combinations and avoid looking over all pads again. e.g. The last combined
return is the same as the latest obtained #GstFlowReturn.
Computes the combined flow return for the pads in it.
The #GstFlowReturn parameter should be the last flow return update for a pad in this #GstFlowCombiner. It will use this value to be able to shortcut some combinations and avoid looking over all pads again. e.g. The last combined return is the same as the latest obtained #GstFlowReturn.