[FFmpeg-user] Resolving -filter_complex overlay / -vf yadif conflicts in subprocess call Python script

[Gyan]

On 11-09-2019 06:52 PM, digitensions via ffmpeg-user wrote:
> Gyan, I am pleased to read yadif only works if interlacing is sensed. I see it has an auto mode, but will it differentiate between upper and lower if sensed also? The "[0]yadif=0:-1:1[v];[v][1]overlay” suggestion seems to have worked. I was having issues with the ‘ and “ options, but it functions perfectly this way:

In my answer, it is set to auto-detect parity. Manual parity can be 
forced by changing the 2nd arg, so

     yadif=0:0:1  for top-field first.
     yadif=0:1:1  for bottom-field first.


Gyan