ProRes Capture Issue

[Keith Koby]

long story about staying on tiger… we have a lot of workflows that are fine on tiger. we bought up as many tiger capable computers as possible at the beginning of the year to preserve those workflows. We were planning to upgrade later this year, but other needs have started the move early. email me for the details if you want.

I agree, pci-e expansion slot utility seems like the likely culprit. I’ve gone there twice though. After the initial upgrade of the system to leopard I installed the LHe. That automatically brings up the utility. Yesterday we blew away the system and did a clean build. Again, I brought it up to check that we had 4 lane and 4 lane on fibre channel and LHe (1 lane on nothing and 16 on gpu). I’m going to call it up one more time and I’m going to reseat the card. After that I’ll swap for a different LHe and then I’ll report back.

For these tests, there has been 4 gigs of ram. 8 x 512, so it would be hard to mess that up. I’ll let you know what we find and thanks again for the all the advice.

[Keith Koby]

two things i forgot to reply about… yes we have a san and we have tried both versions of the drivers.

[Gary Adcock]

[keith koby] “And yes, the original poster and I are talking about the same CPU. “

Yo Keith… (hey dude)
( jeremy – I can vouch for Keith)

First
on that Quad are you running at least 8G ram?
Same size chips ( good) Mixed sizes ( bad)
all same MFG? ( please do not say apple- bad)

Secondly
dropped frames in ProRes seems to always have more to do with the CPU and RAM than storage, contrary to capturing all other formats. I am seeing more and more RAM “failures” with the ProRes codec than ever before- huge numbers of RAM chips do not seem to be up to snuf for the capture of ProRes.

Do not set the PR to capture 8bit try use ProRes Standard first, I am tracking something but it looks as if PRHQ is trying to over sample the incoming video to round out the 10bit data stream in some cases, but in issues with low CPU numbers ( sorry but that quad intel does fall on the bottom of the specs)
Try capturing in the standard version of ProRes- rather switching to 8bits.

The same also holds true for the software conversions, I am not using the HQ version for any software ProRes conversions.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows
Inside look at the IoHD

[Jeremy Garchow]

I’m with Gary, more RAM will probably help, but can’t guarantee it will help.

In your 1080i 29.97 ProRes HQ timline, under the rt drop down menu, is the ‘High’ option greyed out under Playback Video Quality?

[Keith Koby]

Thanks for the vouch Gary!

So I re-seated the card and ran the expansion slot utility again and it’s fine now.

The ram is labeled similarly. I started out with 6 GB of ram and then went to 4 equally distributed and paired across boards and risers…

Jeremy – thanks for your help! The “high” option in rt playback is available.

10bit uncompressed is working and all flavors of prores are fine.

[Gary Adcock]

[Keith Koby] “So I re-seated the card and ran the expansion slot utility again and it’s fine now. “

yeah.

it seems that under tiger when you blast the pram it seems to sometimes reset the expansion slot utility…. AAARRRRGGGHHH.

gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows
Inside look at the IoHD