Dom Silverio
Forum Replies Created
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And FCP is innovative?
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Avid Xpress Pro HD [aka version 5] on the PC can edit DV25, DV50 and DVC Pro HD in its native format. You can capture, playback, edit and output via firewire. No additional hardware needed.
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EDL.
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[gary adcock] “How about IT IS 23.98”
You are right of course.
[gary adcock] “Avid traditionally used a 29.97 cut list “cause Avid did not think NLE editors would understand the process of removing the 3:2 cadence.”
Actually, Avid Film Composer has been 24p [NOT even 23.976]. 30i editing was an option for those willing to edit in that mode instead. But Film Composer’s success in Hollywood is largely in part because it was a true 24p system with 100% accuracy – unlike other systems at that time that may have been a 1 or 2 off.
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24p with traditional pulldown or Advance pulldown is basically 23.976.
[Shane Ross] “Only 24PA (advanced) should be captured at 24fps (23.98).”
It is not that only 24pA should be captured at 23.976 it is just that FCP does not support traditional pulldown removal via firewire. You would need Aurora card to do it via SDI/composite/etc.
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[Oliver Peters] “Avid works the same way in performance with or without either Mojo or Adrenaline attached.”
[Oliver Peters] “The onboard codecs of Mojo do nothing other than handle I/O tasks. If there was any actual acceleration going on, the computer would be having to send MULTIPLE streams of data out through the FW port to the Mojo and then back again and then one more time for a composited output.”
I think you are incorrect. You are looking at this at a traditional way a PCI accelerator board architecture would – send multiple streams and let it be sorted it out. DNA does it slightly different [except for Nitris] or at least its duty is not so early in the process. All the computative tasks is handled by the CPU. However, the recompression is done by the on-board codec. So for example, for DV with 3 PiPs, the computer will calculate the FX (in uncompress mode is the popular theory since it has the lowest overhead while maintaining the best quality) and send an uncompress stream down to your DNA. The DNA in turn recompresses it back to DV format. The result? More stream of DV since the recompress is not handled by the CPU.
You can test this theory with XPro version 5. It has real time DV out via firewire in full quality without Mojo. With a 3 GHz P4 and 1 Gig of RAM, I can push about 2-3 layers. Pop the Mojo in and 4-5. With faster CPU [say P4 3.4 GHz and more RAM] I can push more streams – 3-5 without Mojo and 5-7 with Mojo.
So does that mean there is no acceleration with uncompress? Probably not. This is why FCP and Adrenaline have relatively the same amount of 1:1 8 bit stream with Adrenaline slightly ahead on the HP [probably caused by CPU difference and not NLE architecture difference]. But for compressed formats like DV, 2:1, DVC Pro HD, DV50, etc – the DNA does perform more streams- at least enough that it is difficult to explain by platform variation.
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I am not Will but,
As you have said, the codec is on board. Thus some of the intensive tasks of compression/decompression is off loaded. No this not in the traditional sense of acceleration ala Ice Boards or Meridien DMB, but the results is compareable to a degree – more FX. Even Aja is touting ‘acceleration’ with DVC Pro HD and HDV with Kona 2 since they too have copied the codec on board technique.
Bottom line is the concept is simple but the results are there. Try using Io for DV. Decent amount of RT as long as you keep it in Unlimited/Low Quality. Set it to high and 10 bit and watch the video turns quarter of res in the top left of your client monitor. With Adrenaline – full quality 4-8 layers of DV. Mojo the same but of course limited to 8 bit.
BTW – as I understand it Mojo does capture DV native via its firewire port if you set it to DV. You can also go from Avid to Mojo FW to DV VTR natively if you set Digital Cut to native mode. You lose some RT, but you can stay native.
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[ange] “said that the drives are all mounted but all the media is off line,my answer welcome to the world of Avid Adrenaline. Time to digitize, AGAIN!”
Uhm… just rebuild your database? You know automatic reconnection of media – 100% frame accracy and automated? Unlike FCP’s silly Reconnect Tool. Barely reconnects and not really a tool.
Hollywood? You want to count shows in primetime, long form news, feature film releases, reality shows, etc edited on Avid vs FCP?More major feature films are cut on Lightworks than FCP – and Avid is way ahead of Lightworks.
FCP is a good tool. No need to overhype.
And back to the topic. There will be unlikely an accelerator for FCP. Cinewave tried and got killed by BM and AJA’s cheaper/non accelerating cards [OK, it has some minor accelerations, but unlike HD Adrenaline/Mojo].
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Several DP G4s and DP G5s. All with SCSI RAID or Huge Systems drive. I find it laggy [DV25, unc 8 bit or unc 10 bit]
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No – no uncompress 4:4:4 but we are talking about bit depth here and not compression ratio right?