Cast variance reference output
Cast variance reference output

The larger internal variables are required for the intermediates
but RoundHighBitDepth brings them down to uint32_t/unsigned int.

Fixes type warnings in visual studio.

Change-Id: I48d35284d6cbde330ccdc1f46b6215a645d5eb00

VTCSecureLLC/libvpx,liqianggao/libvpx,mwgoldsmith/libvpx,zofuthan/libvpx,Topopiccione/libvpx,smarter/aom,stewnorriss/libvpx,mbebenita/aom,smarter/aom,webmproject/libvpx,zofuthan/libvpx,GrokImageCompression/aom,mwgoldsmith/libvpx,jmvalin/aom,zofuthan/libvpx,ittiamvpx/libvpx-1,shyamalschandra/libvpx,Topopiccione/libvpx,VTCSecureLLC/libvpx,shacklettbp/aom,mbebenita/aom,openpeer/libvpx_new,running770/libvpx,shyamalschandra/libvpx,stewnorriss/libvpx,zofuthan/libvpx,goodleixiao/vpx,mwgoldsmith/vpx,smarter/aom,felipebetancur/libvpx,stewnorriss/libvpx,smarter/aom,shacklettbp/aom,liqianggao/libvpx,openpeer/libvpx_new,Topopiccione/libvpx,thdav/aom,running770/libvpx,ittiamvpx/libvpx-1,stewnorriss/libvpx,ShiftMediaProject/libvpx,thdav/aom,thdav/aom,thdav/aom,shyamalschandra/libvpx,liqianggao/libvpx,zofuthan/libvpx,VTCSecureLLC/libvpx,GrokImageCompression/aom,felipebetancur/libvpx,webmproject/libvpx,ShiftMediaProject/libvpx,ShiftMediaProject/libvpx,shyamalschandra/libvpx,mwgoldsmith/vpx,felipebetancur/libvpx,Topopiccione/libvpx,ittiamvpx/libvpx-1,goodleixiao/vpx,mwgoldsmith/libvpx,openpeer/libvpx_new,running770/libvpx,jmvalin/aom,felipebetancur/libvpx,jmvalin/aom,goodleixiao/vpx,mwgoldsmith/vpx,luctrudeau/aom,Topopiccione/libvpx,mwgoldsmith/vpx,liqianggao/libvpx,luctrudeau/aom,webmproject/libvpx,shacklettbp/aom,ShiftMediaProject/libvpx,stewnorriss/libvpx,mbebenita/aom,shyamalschandra/libvpx,jmvalin/aom,liqianggao/libvpx,mwgoldsmith/libvpx,felipebetancur/libvpx,GrokImageCompression/aom,GrokImageCompression/aom,VTCSecureLLC/libvpx,mbebenita/aom,VTCSecureLLC/libvpx,shacklettbp/aom,shyamalschandra/libvpx,webmproject/libvpx,luctrudeau/aom,running770/libvpx,jmvalin/aom,jmvalin/aom,mbebenita/aom,Topopiccione/libvpx,running770/libvpx,luctrudeau/aom,webmproject/libvpx,mbebenita/aom,GrokImageCompression/aom,stewnorriss/libvpx,thdav/aom,luctrudeau/aom,GrokImageCompression/aom,felipebetancur/libvpx,smarter/aom,ShiftMediaProject/libvpx,running770/libvpx,openpeer/libvpx_new,mwgoldsmith/libvpx,luctrudeau/aom,webmproject/libvpx,mwgoldsmith/vpx,openpeer/libvpx_new,mwgoldsmith/libvpx,mwgoldsmith/vpx,shacklettbp/aom,mbebenita/aom,goodleixiao/vpx,mbebenita/aom,thdav/aom,goodleixiao/vpx,shacklettbp/aom,mbebenita/aom,ittiamvpx/libvpx-1,zofuthan/libvpx,ittiamvpx/libvpx-1,liqianggao/libvpx,openpeer/libvpx_new,VTCSecureLLC/libvpx,smarter/aom,goodleixiao/vpx,ittiamvpx/libvpx-1