[x264-devel] The size of search area in reference frames

[Jason Garrett-Glaser]

On Mon, Jun 14, 2010 at 12:57 AM, john sisi <sisi.john1 at gmail.com> wrote:
> Unfortunately, I cannot use the latest version of x264 since I have
> already implemented a lot of extra functions in the old version. I
> would be grateful if you could tell me the role or the function of
> "--tune psnr". What is the goal in using such an option? Thanks,
>
> John
>

It disables psy optimizations, thus making PSNR slightly less
meaningless as a measurement tool.  Check the code to see what it
does.

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