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

[Frederik Dam Sunne]

>
> 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:
http://ffmpeg.org/libavfilter.html#unsharp

Frederik