[x264-devel] PSNR with x264

[Jason Garrett-Glaser]

.On Mon, Mar 12, 2012 at 2:17 AM, A. Mullius <mullius87 at gmail.com> wrote:
> Hi,
>
> I encoded some videos using x264 and also tracked the PSNR for each frame
> using the --psnr parameter. Unfortunately I get this warning: x264
> [warning]: --psnr used with psy on: results will be invalid!
>
> Does this mean that all my PSNR values are invalid? How can I desable this
> 'psy' ?

If you want x264 to optimize for higher PSNR values instead of trying
to encode quality video, use --tune psnr.

Jason