Replies – Forums – Simon Dinnigan

Forum Replies Created

Simon Dinnigan
May 6, 2008 at 8:10 pm in reply to: 1080p @ 29.97fps 10 bit Uncompressed RGB

Jeremy

I totally agree with you, and your expansion on my rushed analogy was very poignant.

[Jeremy Garchow] “Now, all that being said, do you HAVE to do it this way for some reason? “

The big bosses in London have given us the brief of capturing the footage in 4:4:4 uncompressed, so we have to try and do it. I know that it will make no difference apart from dramatically increasing file sizes and I have told them this, but they want us to try and I want to prove a point by showing them the difference (or lack of) between the 2 captures.

Thanks again Jeremy

Simon
Simon Dinnigan
May 6, 2008 at 6:34 pm in reply to: 1080p @ 29.97fps 10 bit Uncompressed RGB

We’ve had it coming out of the Gefen at 1080p 8bit and it looks fine, but would really like to see what this system can really do. If you have all this kit and don’t put it through it’s paces to find out it’s real capabilities, it’s like owning a Ferrari and putting a limiter on the engine.

I suppose the cut and thrust of this is that we have been given a brief to deliver 1080p 4:4:4 quicktime movies of this footage and that’s what we are trying to do. I know that it will look absolutely fine in 4:2:2 but that is not the challenge we have been set.

If there is a weak link, I must agree that it will probably be the Gefen box. I will be investigating in more detail tomorrow and will hopefully get you some results.

One last thing: We are running an EasyRaid (12x 500gig drives) Raid 5, capable of over 300MB second (supposedly), and the footage we have digitized in 4:4:4 is coming in at 237.5MB second. It has 1 controller, so only 1 Fibre channel cable connected to 4gig Apple FC card. Can we simply add another EasyRaid connected to the other FC port on the HBC and then stripe both Raids together in Disk Utility? Or do we need to use a FC switch?

BTW. Many thanks to everyone for their brilliant support and advice.

Simon
Simon Dinnigan
May 6, 2008 at 5:50 pm in reply to: 1080p @ 29.97fps 10 bit Uncompressed RGB

The Gefen is outputting Dual Link HDSDI with output setting of 1080p 29.97 RGB. We are ingesting this via Dual Link HDSDI into the Kona. We have had some excellent support from AJA over the past couple of hours and have got it to work according to their settings suggested, but there is a bit of an issue with the quality of the footage ingested. We are now trying to overcome at what point in the chain is the weak link.
Simon Dinnigan
May 6, 2008 at 5:08 pm in reply to: 1080p @ 29.97fps 10 bit Uncompressed RGB

Jeremy

If it were up to me I would have done this from the outset, but the bosses who have nothing better to do than put us and the equipment through our paces want to see the files in the maximum quality possible, however indeterminate that may be.
Simon Dinnigan
May 6, 2008 at 4:34 pm in reply to: 1080p @ 29.97fps 10 bit Uncompressed RGB

We are taking a signal out of a PS3 through a Gefen HDMI to HDSDI scaler outputting 1080p 29.97 RGB signal.
Simon Dinnigan
May 6, 2008 at 4:01 pm in reply to: 1080p @ 29.97fps 10 bit Uncompressed RGB

The raid is definitely fast enough, but the colours are coming out all wrong, almost like a negative.

We created a custom Kona capture preset in FCP but it did not seem to work. The file size was 237MB per and playing back, but as I said the colours were all wrong.

Settings:

180p 29.97
10bit uncompressed
RGB 4:4:4

Any ideas?

Thanks

Simon