How can I tell if MPEG stream has RFF flags?

[LisaB]

When I load the stream in ReStream, I can see the pattern of TFF flags...if they alternate, then one might assume that this is a telecined (soft) source, and thus there are also RFF flags present....but how can one be sure? What program out there will allow me to "see" the RFF flags?

[SaSi]

What are the RFF flags? I understand TFF as "Top Field First" and it can be either True or False, depending on field order of an interlaced stream.

[LisaB]

3:2 pulldown (i.e., soft telecine) involves adding RFF flags (repeat first field) and setting TFF flags (top field first) appropriately. To telecine 4 frames into 5, you must repeat 2 fields.