From: Wenbin Chen
MSDK/VPL uses 420 chroma format as default to encode RGB, and this is
not a proper usage. Now enable 444 encoding for RGB input by default.
RGB is encoded using 444 chroma format when user doesn't specify the
profile or uses rext profile, otherwise, 420 is used.
Signed-off-by:
On Di, 2023-01-03 at 11:00 +0800, wenbin.chen-at-intel@ffmpeg.org wrote:
> From: Wenbin Chen
>
> MSDK/VPL uses 420 chroma format as default to encode RGB, and this is
> not a proper usage. Now enable 444 encoding for RGB input by default.
> RGB is encoded using 444 chroma format when user doe
