Fix bad bitstream generation: wrong parameter to rpcSlice->setUseChromaQpAdj() in initEncSlice().
Fix bug introduced by !2018 (merged) ; solution preferable to !2033 (merged). Aligned with what VLCReader does.
Fix bug introduced by !2018 (merged) ; solution preferable to !2033 (merged). Aligned with what VLCReader does.