fix and comment
fix and comment

Original commit message from CVS:
fix and comment

jpakkane/gstreamer,magcius/gstreamer,krieger-od/gstreamer,StreamUtils/gstreamer,drothlis/gstreamer,krichter722/gstreamer,cfoch/gstreamer,mrchapp/gstreamer,centricular/gstreamer,ylatuya/gstreamer,StreamUtils/gstreamer,lovebug356/gstreamer,krichter722/gstreamer,Lachann/gstreamer,Lachann/gstreamer,mrchapp/gstreamer,collects/gstreamer,ahmedammar/platform_external_gst_gstreamer,magcius/gstreamer,jpakkane/gstreamer,surround-io/gstreamer,mparis/gstreamer,jpxiong/gstreamer,centricular/gstreamer,krieger-od/gstreamer,cablelabs/gstreamer,justinjoy/gstreamer,mrchapp/gstreamer,drothlis/gstreamer,mparis/gstreamer,jpxiong/gstreamer,shelsonjava/gstreamer,jpxiong/gstreamer,lovebug356/gstreamer,mparis/gstreamer,drothlis/gstreamer,magcius/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,ahmedammar/platform_external_gst_gstreamer,ensonic/gstreamer,ahmedammar/platform_external_gst_gstreamer,Distrotech/gstreamer,ylatuya/gstreamer,centricular/gstreamer,justinjoy/gstreamer,cfoch/gstreamer,ylatuya/gstreamer,StreamUtils/gstreamer,ensonic/gstreamer,drothlis/gstreamer,surround-io/gstreamer,jpakkane/gstreamer,lovebug356/gstreamer,justinjoy/gstreamer,cablelabs/gstreamer,justinjoy/gstreamer,mparis/gstreamer,centricular/gstreamer,jpxiong/gstreamer,ensonic/gstreamer,lubosz/gstreamer,cfoch/gstreamer,lovebug356/gstreamer,cfoch/gstreamer,collects/gstreamer,shelsonjava/gstreamer,lovebug356/gstreamer,lubosz/gstreamer,shelsonjava/gstreamer,krichter722/gstreamer,ahmedammar/platform_external_gst_gstreamer,surround-io/gstreamer,jpakkane/gstreamer,mrchapp/gstreamer,ensonic/gstreamer,cablelabs/gstreamer,Lachann/gstreamer,lubosz/gstreamer,krieger-od/gstreamer,ahmedammar/platform_external_gst_gstreamer,collects/gstreamer,magcius/gstreamer,ylatuya/gstreamer,drothlis/gstreamer,centricular/gstreamer,Lachann/gstreamer,ensonic/gstreamer,cablelabs/gstreamer,jpakkane/gstreamer,collects/gstreamer,krieger-od/gstreamer,jpxiong/gstreamer,surround-io/gstreamer,mparis/gstreamer,krieger-od/gstreamer,krichter722/gstreamer,lubosz/gstreamer,surround-io/gstreamer,krichter722/gstreamer,mrchapp/gstreamer,ylatuya/gstreamer,justinjoy/gstreamer,StreamUtils/gstreamer,Distrotech/gstreamer,cablelabs/gstreamer,Distrotech/gstreamer,shelsonjava/gstreamer,magcius/gstreamer,cfoch/gstreamer,Distrotech/gstreamer,Distrotech/gstreamer,StreamUtils/gstreamer,collects/gstreamer,Lachann/gstreamer