2017-02-26 12:11 GMT+01:00 Katherine Frances <knfran...@gmail.com>: > Thanks again, Andy. > So if I understand correctly: > > 1. *-vf scale=interl=1* registers to libx264 that the input is > interlaced and to be 'aware' of that in future operations.
No, the option is meant to tell the scale filter that it has to adapt its operations for interlaced content. > *yadif*, of course, does the actual deinterlacing. Yes. > 2. If used in the same script, *scale* must precede *yadif. *Although it > seems rather redundant. I would suggest the opposite since giving yadif more information could help. There may be a performance trade-off though. > 3. If deinterlacing with *yadif*, *yadif* should precede chroma > downsampling Same reasoning as above. > (via *-pix_fmt yuv420p*) You should not use a (non-trivial) filter-chain and -pix_fmt since iirc, the output (the filter order) is not defined. (But it is a bad idea anyway.) "Scaling" and "Chroma-downsampling" are the same insofar as they are both done by the scale filter. Did you already tell us if the content you see is actually interlaced? As said, please find out what top-posting means and avoid it here. Carl Eugen _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
