[FFmpeg-user] Differences between ffmpeg mpeg2 codec and the official mpeg2 tm5 codec

Fernando Silva dr.fsilva246 at gmail.com
Mon Aug 15 04:49:31 CEST 2011

i'm comparing ffmpeg with official mpeg2 tm5 implementations and i´m getting
some differences in PSNR measurement (tm5 indicades 4 to 5 dB less than ffmpeg).
Is there some explanation for this? A post or pre-processing perhaps?

Any thoughts would be helpful.

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