docs: add missing parameter docs
docs: add missing parameter docs

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