test: outputselector: Add another negotiation test
test: outputselector: Add another negotiation test

Adds an unit test to check that the output-selector works
when negotiating before srcpads are requested

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