[x265] [PATCH 1 of 3] Chroma QP Offset: increase chroma QP when psy-rd is enabled

[Derek Buitenhuis]

On 6/25/2014 12:10 PM, Deepthi Nandakumar wrote:
> This is primarily a visual quality improvement/psy-rd hack. In 444, since chroma resolution is on par with luma, and our eyes arent very sensitive to chroma, we increase the chroma QP so that those bits can be used up in luma.

Yah I get the idea of a chroma qp offset, I'm just wondering why it is specific to psy-rd?

Cheers,
- Derek