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Originally Posted by Stereodude
Yes, I used two avs inputs into both VQMT and ffmpeg. What did you use?
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Yes, avs for everything. The "original" tested against in all cases is the same mpeg2source script you provided in PM
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However, I just went back and redid the whole thing and made sure I got 5002 frames this time.
PSNR y:65.979373 u:57.686445 v:51.298844 average:57.726204 min:53.681992 max:88.556475
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Something else is going on . That avg U,V delta between our results is too large.
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Does H264 have similarly vague iDCT specs that allows different decoders to do different things that give slightly different results?
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For h264 - I don't think so. LSmash/FFMS2 do not list those types of options. DGDecodeNV, the old DGIndexAVC do not either.
The only decoder side switch you might sometimes see is disable deblocking