[x264-devel] PSNR Calculation

[A. Mullius]

Hi,

how does the PSNR calculation of x264 work when i use e.g. --video-filter
resize:width=320,height=240 to encode a 1920x1080 video to 320x240? Does it
scale the encoded frame up to 1920x1080 or does it scale the original frame
down to 320x240 for the PSNR calculation? And which interpolation filter is
used for the rescaling in the PSNR calculation?

Thanks for help!
Mullius
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