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Old 17th February 2019, 11:38   #13  |  Link
FranceBB
Broadcast Encoder
 
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Join Date: Nov 2013
Location: Royal Borough of Kensington & Chelsea, UK
Posts: 2,883
Quote:
If you wanted to author a "professional" Blu-Ray (and used .264 output) that would be the correct way.
Yep. And FLX90 is actually lucky to have an MBAFF with only progressive frames inside. I too generally encode progressive contents as progressive flagged as interlaced, however some of my colleagues duplicate 25fps progressive to 50 progressive, divide in fields and make a "truly" interlaced content 25i.
It's not very likely to find official releases encoded that way, but it can happen...
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