/schemas/system/gstreamer/default/audiosink /system/gstreamer/default/audiosink gstreamer string osssink default GStreamer audiosink GStreamer can play audio using any number of output plugins. Some possible choices are osssink, esdsink and alsasink. /schemas/system/gstreamer/default/videosink /system/gstreamer/default/videosink gstreamer string videosink default GStreamer videosink GStreamer can play video using any number of output plugins. Some possible choices are videosink, sdlvideosink and aasink.