Joseph Owens
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COW Coins
16
DaVinci Coins
Forum Replies Created
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I’ve got a couple of interfaces; a Decklink4K in my now ancient MacPro and an UltraStudio tied to my iMac.
The pygmy pony is a Frank Zappa reference “Movin’ to Montana” as I am retired, more or less officially.
JPO
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Digitizing analogue video was part of my bread-and-butter for awhile. The tricky part is usually the remote control (RS422) or whatever the deck interface is happiest with. Next is avoiding matrixing errors – try to go with as close to raw component as possible: Y / R-Y / B-Y. You don’t really require Resolve to control and ingest media; freankly a lot easier to install and run BMD Media Express. Capture wild or build a batch… grab a cuppacawfee while I ride my pygmy pony in Montana..
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“When I grab the playhead in the ‘Edit’ window to ‘scrub’ through the timeline it jitters all over the place, like it’s jumping between quarter and 1 second…”
Long-GOP.
Highly-compressed codecs achieve their low bit-rate density by reducing the file size through the mechanism of only recording one “real” (*intra) frame at intervals, and then “filling in the blanks” with Predictive and Bi-directional frames that furnish information about the image content needed to re-build the original source content.
When Resolve imports media, as opposed to many other edit-capable applications, it assumes that one of the purposes you might have in mind is color correction. So it attempts to re-build the entire sequence of frames as if it was full-bandwidth RGB. You should appreciate that this can be Giga-flop intensive for high framerate cinema resolutions. This explains why the “blue-line” render fixes the problem. And it is how you’re going to have to fix the problem – generating proxy footage at a lower system demand. Unless you bet your retirement savings on an M3 workstation with multiple GPUs and a high-speed server. Otherwise, its’ just math. And obsolete again 6 months from whenever you bought the latest system.
JPO
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A matter of some however slight interest to me as well. I am semi-retired and the hardware that I have kept over is headed for recycling as well. 😂 Apple is going to *obsolete* [verb] (and app developers are accelerating the process) so that anything over a few years old won’t work with anything coming down the pipe. I can’t run Resolve17 on my faithful MacPro_2010 anymore. macOS won’t support the 3xTitanBlack nVidia cards, so that’s done. My iMac5K doesn’t have a Thunderbolt3 slot, consequently adding an eGPU is a non-starter.
But to your question about Max/Ultra; probably neither until the M2 version is released, or the M2 MacBookPro M2 might be a viable option when it is released. In any event, if you are doing primarily HD with occasional 4K, the Max is likely going to be just fine for awhile. The Ultra is 2 Maxes, stacked on top of each other. Might be like buying 4 liters of milk with a best-before-date of next week, when 2 will get you through. That’s my impression watching this situation for the past 6 months.
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After 18 years of handling videotape, online editing, I was hired on as a telecine transfer artist and trained on a daVinci 8:8:8 digital color corrector.That was 1994; davsys offered in-person classes at their facility in Lauderdale-by-the-Sea (Florida). Ten days at a HoJo on the beach. Started to encounter non-linear media while sitting in on some sessions at Modern (Burbank) in 1999. I started my own firm in 2005 — originally with Silicon Color’s “Final Touch 2K” which was purchased by Apple and repackaged as “Apple Color” and released with Final Cut Pro 5/6/7. Originally I had specified daVinci Resolve, but as it was in Beta, was not available. When Grant Petty purchased the company and rebranded it to DaVinci, featuring Resolve as a Blackmagic product, I switched over to what I was familiar with (I thought) because by then, the writing was on the wall for FCP (X-product). I think the first version I picked up was Resolve8, and of course we’re up to 17 now.
It has become the supersuite that was all the rage / fever-dream that Final Cut Pro editors all thought (at the time) was going to be FCP 8. Personally, I think it is too big now, but as a commodity consumer item, why would you *not* want that Ferrari in your garage?
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The answer depends on your editing system. If you expand the XAVC codec to an intra format like ProResHQ, the storage will balloon, but processing time won’t be as intensive. If you leave the source media *as is*, it will just mean that your CPU will spend some Flops decoding the Long-GOP H264. The alternative is to transcode to a proxy codec of similar bit density, and then re-link to the original, or maybe even the less-compressed HQ (if you decided to do that) for color correction if you decided you needed to see yur grades applied to the originals, or deferring all the way to the Render Output before re-linking to the originals.
2Reefs aka JPO
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So, “TLDR”… ‘You have reached a limitation with DaVinci Resolve’
generally indicates that you have used a feature in the Studio version that the Free version does not support. Could be Noise Reduction, could be a premium plugin / transition/ grade, OFX or some other, including a UHD resolution limitation. You’ll probably have to weed it out…
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Qualify the windows with, yes, a window or two…
Use curves to crush out the amount of detail that you want to subtract.
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If it’s SDI to your monitor, might it be a Dual Link issue?
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Based on some of the issues I’ve been seeing with use of the Black Magic eGPU Radeon Pro580, some older iMacs may have some issues that none of the manufacturers have a handle on.
One thing to check first is whether or not Resolve is seeing the eGPU, and your Preferences for image processing are in order. You should expect problems if trying to force the eGPU to interface with Thunderbolt2. They are really designed for and demand TB3.
In the back of my mind, this is similar to the intermittent shutdowns that happen when a system is over-taxed — too many drives, too much memory in use, peripherals sucking power — the supervising OS will shut the whole system down before it melts. This is common with the old towers that individuals are over-stacking with drives, memory, and PCIe extensions that the old MacPros were never designed to cope with.
JPO