On Wed, Jul 25, 2018 at 2:56 PM, Reto Kromer <[email protected]> wrote: > Kieran O Leary wrote: > >>Reto: Can you elaborate on the multiplication that you mention? >>I'm assuming that this is not just the increase in file size >>that you mention, > > I guess, that's the more "visible" aspect for many archives. > > (I used the term "multiplication" (in quotation marks), because > it's more that just an addition.) > >>but perhaps you're referring to losslessly >>compressing a proprietary lossy codec and ending up with >>something that could be more complex than is necessary? > > For example the increased complexity slows down the workflows. > If you have just a few of those files, then it doesn't really > hurt; but if there are PB, then it does make a difference in > terms of needed time and/or infrastructure. I have included > ProRes and QuickTime issues in presentations during the last > year or so, and an article will possibly be published by the > IASA Journal. >
We'd really just be looking at a few hundred files I think, all created in-house back when ProRes was what was used when performing telecine or tape migrations. I hope your article makes it into IASA, it's such an important topic. >>I think even >>if we go ahead with this normalisation of our legacy in-house >>created material, applying it to potential ProRes >>donations/deposits would be a different conversation.. > > My concern is about "ProRes-born" materials. For example many > video artists have used or are still using this way to create. > Or low-budget productions. In all those situations ProRes is the > best possible quality. > Aye, I think we share this concern. > I would also be interested in knowing the ratio, let's say, > between ProRes 4444 and DPX productions which are currently > screened as DCP in theatres. > Me too! It might be worth doing a survey actually with post-production houses. Best, Kieran. _______________________________________________ ffmpeg-user mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
