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

[Derek Buitenhuis]

On 6/25/2014 1:22 AM, deepthi at multicorewareinc.com wrote:
> +    /* In 444, chroma gets twice as much resolution, so halve quality when psy-rd is enabled */
> +    if (p->internalCsp == X265_CSP_I444 && p->psyRd)
> +    {
> +        p->cbQpOffset += 6;
> +        p->crQpOffset += 6;
> +    }

I dont really understand what the reasoning is for this? Is it just to make it
fit with the model psy-rd is currently using?

- Derek