basetransform: clear allocation parameters in passthrough
basetransform: clear allocation parameters in passthrough

Clear the allocation parameters when we operate in passthrough.

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