[FFmpeg-user] Best way for converting HD 1080i to DVCPRO25 DV?

Frederik Dam Sunne frederiksunne at gmail.com
Thu Jun 21 22:58:32 CEST 2012

> The problem is the scaling (downscaling)... My question is about the
> quality for transcoding from HD1080i to SD DVCPRO25. Is this (without
> any filtering) the best way to process these contents to SD?

Well maybe give lanczos a try:
-sws_flags lanczos
and or experiment with a subtle unsharpen effect to compensate a bit for
the blur introduced from downscaling and interpolation:


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