Sean Oneil
Forum Replies Created
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David,
This is an issue that occurs in FCP 6 when it is playing back RGB footage. That’s why you see it with JPEG stuff.
Could be one of two things.
1. Check your custom sequence settings, under video processing, and make sure it’s set to render all footage as high-precision YPrPb, not RGB.
2. This could also be that ProRes doesn’t function properly with custom resolutions. It assumes that non-standard video resolutions are RGB because they would typically be created in a graphics program.
Sean
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Let me pose this question. Does the AJA IO work as a standalone converter box without plugging in the firewire port?
If so, then you’ll be fine. You can use that to convert whatever to and from SDI, which can be plugged into your Decklink.
Sean
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One thing you might try is trashing the Quicktime preferences.
Sean
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[Liam El Terrible] “My main problem though, is FCP6 capable of exporting 2k cineon/dpx sequences?”
Yes.
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[Richard Martz] “This announcement represents a significant shift in momentum in favor of HD DVD, as Paramount and Dreamworks join Universal Studios in declaring exclusive support of HD DVD.”
The story is a lot jucier than that.
The HD-DVD camp literally bribed Paramount/Dreamworks with a $150 million dollar check.
Interestingly, Michael Bay proclaimed on his blog he will not make Transformers 2 for that studio after reading about this (not sure that’s a bad thing).
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That’s not an external monitor. Just an extra computer monitor.
You need the Matrox MXO to have a real video output from the DVI port.
Sean
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[gary adcock] “you trust apple way too much. it is not the only way
Since the first ProRes film out tests are just coming to light, and while impressive, there are still issues to be dealt with in any compressed workflow.”
You’re comparing uncompressed vs. compressed. I’m 100% with you on all that (however, there is the new feature to capture native, but render non-cuts only to ProRes).
The basis for my arguments is primarily people taking a DVCProHD VTR, using the SDI output, and capturing it with there Kona back to DVCProHD. And using that as their online.
Sean
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[gary adcock] “that would be true if all of the binary conversions were the same. The deck/ camera hardware conversion is certainly better than anything else ( especially FCP)
I agree with Jeremy…”
This isn’t a matter of optinion. You two are just misinformed. Badly misinformed. Sorry to be so blunt about it but that’s the 100% incontravertable truth, regardless of who’s pictures are up at the top there.
Gary, using the deck’s hardware decoder (and prefering it to the software decoder) is absolutey fine. Many people feel that way, especially with DV25. But this only makes sense if you are capturing to uncompressed or ProRes. Capturing back to the same format it used to be, means you’re still using the Apple software codec. And it’s taken a hit.
Where you’re wrong is that there is no conversion when capturing firewire. None. Nothing is being altered. Period. FCP doesn’t convert/encode FW data streams. It captures raw data and records the 1’s and 0’s exactly how they were recorded on the tape. That’s how it works. Just like copying a quicktime file from a firewire hard drive to another disk. Or importing a P2 card.
You don’t like Apple’s software decoder? Then you should capture it uncompressed or ProRes. Again, by re-encoding it to DVxx, you’re in the same place you were if you used FW capture. The software still does the decoding for playback The only difference is now the video has also taken a hit.
So what you are saying has to do with playback. Not capture. Let’s look at capturing.
If you capture SDI, there is still no “hardware conversion” taking place inside a Kona card. FCP/QT still does the encoding. Software encoding. The Kona 3 doesn’t have a DV encoder, or a DVCProHD encoder. It has hardware that HELPS the software codec crunch the numbers. But it’s still the Apple software codec.
Jeremy, you mentioned the Kona’s scaling non-full raster footage on ingest is what you think helps it. Well it doesn’t work that way. Trust me. When you output SDI from a deck, it’s already full raster. The deck is scaling it, not the card. SDI doesn’t transmit 970×720 video. The Kona card will scale when converting NTSC to HD, etc. But it doesn’t do the 970×720 to 1280×720 conversion. The deck has already taken care of that.
One can certainly argue that the hardware decoder in a deck is better than the software decoder in FCP (like Gary did). That’s fine. That is an opinion, which I respect. And most people agree with it for DV25 footage. That’s why it’s beneficial when capturing to uncompressed or ProRes. But if you’re encoding it back to it’s orginal format (like DVCProHD) then you completely throw away what you were hoping to achieve. You now have DVCProHD files on your Mac, and the Apple software codec is being used during playback.
And all these times this topic has come up, I have yet to see any literature stating that lossy SDI capture of DVCProHD is somehow equal or better. This is from the AJA web site:
“The Panasonic DVCPROHD format takes advantage of KONA hardware as well. KONA
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[JeremyG] “Yes there is, It’s called 8 bit to dv”
That’s an Easy Setup. There is no “8 bit to DV” sequence profile.
Sean
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[Christopher S. Johnson] “Nobody disagrees with this, right? The people saying this works I am sure are speaking from direct experience and not theory, right?”
My machine has a Kona. Every other machine has a Blackmagic. We work with P-JPEG and now ProRes. Nobody here has seen a dark green line.
That doesn’t mean Matt won’t see one on his machine. Anything could be happening there. Some weird QT plugin that got installed years ago. Who knows? Some Cinewave thing from before. Anything’s possible. But this theory you guys have that video files captured from BMD and AJA are different from each other – that ain’t it. I promise you.
Look at the DV sequence settings for “Kona DV” preset… oh wait, there’s no such thing. Notice how the Kona DV Easy Setups use the same exact sequence presets as regular FW DV. “DV NTSC 48khz”. The same exact sequence settings used for FW capture on a system that doesn’t even have a Kona or Decklink.
Here’s a 1-frame clip of an Uncompressed 8-bit 23.98 movie captured using a Decklink Extreme over a year ago (long before this place even had a Kona):
https://www.crosscreekentertain.com/tmp/BMD_TEST.mov.zipMake sure you remember the 23.98 part. You wont’ see a dark green bar on a Kona system. Just like I don’t see it on mine.