is it possible to encode h264 videos with 4:4:4 chroma subsampling?
However, I found nothing about the profile Hi444PP in the media sdk.
4:4:4 chroma subsampling isn't supported for h264. The fixed function hardware for h264 encode made accessible by Media SDK is designed for 8 bit 4:2:0 only.
does it mean with software encoding it is supported?
For more complete information about compiler optimizations, see our Optimization Notice.