Cary Knoop wrote:Hopefully, they know what they are doing. Given TV's obsession with interlaced format and given that ProRes typically records 4:2:2 then if they do it wrong there may be unpleasant surprises during deinterlacing in the future.
Subsampling has nothing to do with interlacing. Only 1080i HD is interlaced, and it's a mandatory for the smattering of legacy consumer CRTs in existence - I think everyone would like to get rid of it. Deinterlacing artefacts are caused by the incorrect field order.
I can only speak for UK broadcast, but almost all content is progressive acquisition these days; with only a few HD 1080i cameras still around. In HD it is mandatory even so to finish and deliver in 1080i; that includes all graphics such as rollers. UHD can be 25p or 50p, for that 'live' look. So, normally delivery requirements I work to are: 10bit 4:2:2 1080i50 DNxHD HQ>AS-11.
Prores and DNxHD/R are post and mastering codecs by design; not camera ones. They are very much alive for their original intended purpose as well, with DNxHD/R being the mastering standard in the UK, not Prores, since Avid dominates (International versions to the States have been QT or Prores); even though Prores import and export is not an issue on Avid in Windows; and even Resolve adopts that family for the default transcode and render codec, I imagine for the same reason. But both these codec families still have no peers for multi-generational intra-frame integrity and low taxing of cpu and computer resources; as opposed to long gop H.26x or cpu heavy raw.
Much as it's less taxing for editing, Prores is easier to encode in a camera too and intra-frame much better than H.26x or Mpeg long gop and became popular early on (DNxHD/R never caught on) when they were really pants; it's only major disadvantage ever being bandwidth and storage. It might be used less and less in the future, as efficient proprietary 'raw' takes a hold (the Red Patent gave it another lease of life though) but judging by Apple's iPhone splash about it only recently; it's not going anywhere fast at the moment, it would seem also.