Whether sample_encode is supported for hevc 444 8bit ?

[changliwu]

hi, I run ./sample_encode h265 -i 1.rgba -o 12.h265 -w 1920 -h 1080 -rgb4, but the 12.h265 is yuv420p, why it is not yuv444?

cpu : 11th Gen Intel(R) Core(TM) i5-11320H @ 3.20GHz

GPU: 00:02.0 VGA compatible controller [0300]: Intel Corporation Device [8086:9a49] (rev 03)

libva/libva-utils/gmmlib/media-driver/Media SDK version: 22.3.0