parser: update for childproxy api changes
parser: update for childproxy api changes

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