[FFmpeg-user] Swap fields in interlaced video

Carla Schneider carla_sch at yahoo.com
Sat Jun 11 00:29:23 CEST 2016

The phase filter does not help, it only changes bff to tff or vice versa.


Look at a single frame :

ffmpeg -i titel.avi -vf "phase=b"  /p/test%2d.ppm
Odd and even lines are swapped. Is there a filter in ffmpeg that
can reverse this ?
This avi file was correct when played using the AV-Master codec,
under Windows 98.

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