No, it’s the chroma upscaling engine built into the dolby vision module. SDR or HDR → DV output. VS10 can be enabled on S922XJ with a custom CE build.
More info here:
On VS10, the SDR → DV conversion is average, but HDR → DV is quite good and approximates native DV well from testing. The updated VS12 chroma engine is on S928X family devices so eager to compare and see the improvements.