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Seems a bit low for some of those sections. Is something special about them visually?
I tried vqmt and got slightly different values (maybe slightly different psnr calcs) , but the trend was the same, average in the mid sixties. Nothing dropping that low, maybe 59.something was the lowest. Nothing to suggest a significant difference between ffmpeg psnr and msu vqmt's psnr
Mine was oversampled non square pixel , 720x480 . It was encoded with --sar 32:27 too but I doubt that would make a difference
Can you upload small clip test section that includes a peak and valley ?
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