[FFmpeg-user] Questions about w3fdif deinterlacing

Carl Eugen Hoyos cehoyos at ag.or.at
Thu Jan 16 20:26:03 CET 2014

Seth Parker <csparker247 <at> gmail.com> writes:

> Most suggestions said I had to visually inspect the 
> streams and selectively encode based on that.

I strongly suggest that, the alternative is to first 
run idet filter to find out if the stream is interlaced 
and then do a second run with a deinterlace filter.
Note that idet does not tell you if the stream is 
telecined, this currently still needs visual inspection 
(or a heuristic based on idet output).

I may be wrong but I am not convinced that a frame-by-
frame decision for deinterlacing makes sense.

Carl Eugen

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