pwg: small tweaks to negotiation
pwg: small tweaks to negotiation

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