Extracting video fields Respectively Extracting individual video fields is my previews question.

Based on the Mulvya's answer I can extract the top fields (only) or the bottom fields (only) individual.

Now, I need to extract the video fields In the following order:

TopField1 , BottomField1 ,TopField2 , BottomField2 ,....

Is it possible?

my source format: DV PAL 720x576i
Sure, you have to combine the field extraction with interleaving.

ffmpeg -i video.avi \
       -filter_complex "[0]field=top[t];[0]field=bottom[b];[t][b]interleave" -r 50 fld%d.png


where the r value is double the original frame rate (or the same as the field rate).