package gstreamer

import "errors"

func (g *Gstreamer) getDecklinkOutput(name string) (string, error) {
	g.Decklink.Lock()
	for slot, pipelineName := range g.Decklink.Slots {
		if pipelineName == "" {
			g.Decklink.Slots[slot] = name
			g.Decklink.Unlock()
			return slot, nil
		}
	}
	return "", errors.New("No free Decklink slot")
}