test: fix refcount error
test: fix refcount error

jpakkane/gstreamer,shelsonjava/gstreamer,jpxiong/gstreamer,StreamUtils/gstreamer,centricular/gstreamer,Lachann/gstreamer,cfoch/gstreamer,lubosz/gstreamer,mparis/gstreamer,centricular/gstreamer,lovebug356/gstreamer,ensonic/gstreamer,jpakkane/gstreamer,krieger-od/gstreamer,krichter722/gstreamer,cfoch/gstreamer,justinjoy/gstreamer,krichter722/gstreamer,collects/gstreamer,cablelabs/gstreamer,krichter722/gstreamer,collects/gstreamer,collects/gstreamer,cfoch/gstreamer,centricular/gstreamer,ensonic/gstreamer,Lachann/gstreamer,lovebug356/gstreamer,jpakkane/gstreamer,krichter722/gstreamer,krieger-od/gstreamer,ensonic/gstreamer,lubosz/gstreamer,Lachann/gstreamer,surround-io/gstreamer,justinjoy/gstreamer,StreamUtils/gstreamer,mparis/gstreamer,Lachann/gstreamer,StreamUtils/gstreamer,StreamUtils/gstreamer,surround-io/gstreamer,centricular/gstreamer,shelsonjava/gstreamer,jpxiong/gstreamer,lubosz/gstreamer,mparis/gstreamer,surround-io/gstreamer,justinjoy/gstreamer,cablelabs/gstreamer,cfoch/gstreamer,ensonic/gstreamer,lovebug356/gstreamer,cfoch/gstreamer,Lachann/gstreamer,collects/gstreamer,cablelabs/gstreamer,lovebug356/gstreamer,mparis/gstreamer,jpxiong/gstreamer,krieger-od/gstreamer,krichter722/gstreamer,jpxiong/gstreamer,ensonic/gstreamer,collects/gstreamer,centricular/gstreamer,lubosz/gstreamer,jpakkane/gstreamer,lovebug356/gstreamer,justinjoy/gstreamer,mparis/gstreamer,cablelabs/gstreamer,shelsonjava/gstreamer,shelsonjava/gstreamer,StreamUtils/gstreamer,surround-io/gstreamer,krieger-od/gstreamer,justinjoy/gstreamer,krieger-od/gstreamer,lubosz/gstreamer,jpakkane/gstreamer,cablelabs/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer,surround-io/gstreamer