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Old February 23rd, 2005, 09:25 AM   #1
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Canopus HQ Codec update

Canopus HQ Codec has a superfine setting which is always greyed out, what do I need to get access to this ?
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Old February 23rd, 2005, 09:39 AM   #2
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Super Fine

What version edius are you using? I have an Nx with Edius pro 3.0 upgaded to 3.22....try the registered user section to get 3.22
I have a 1080i monitor and maybe my eyesight is failing but I can lay .m2t next to standard captured HQ and can't see a bit of difference. The fine files will be a horse to tame.....they are large and need bg drive throughput.
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Old February 23rd, 2005, 10:18 AM   #3
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yup , running 322

are you saying that you can see the online(superfine) radio button (not greyed out) when you export to file and that you can select it?
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Old February 23rd, 2005, 10:45 AM   #4
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could the option be hardware based?
What processors are you two using?
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Old February 23rd, 2005, 11:23 AM   #5
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OK

got the answer elsewhere


superfine can be set via custom setting of

Q=4
size =50


more info on HQ here

http://www.canopus.us/US/pdf/CC_HQCodec_WhitePaper_letter_VA300404-F_proof.pdf


it seems HQ @ 180Mbps is better than HDCAM
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Old February 23rd, 2005, 12:14 PM   #6
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Canopus HQ

It is really a great codec....I am lucky enough to see it in all its glory. On my Nx machine I can select fine as a preset but I do not think it is hardware related.
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Old February 23rd, 2005, 12:16 PM   #7
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Will this codec work in Premiere Pro?
If not, is Edius a decent editing package? I'm a cutter by trade, but never used it. I'm mostly an Avid guy but can get my way through FCP or PP ok.

Thanks.
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Old February 23rd, 2005, 12:43 PM   #8
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[[[[[Will this codec work in Premiere Pro?

yes it is available at system level so after effects too


edius is available as a crossgrade now for a very silly price
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Old February 24th, 2005, 09:05 AM   #9
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Follow up....

OK

Found out that the custom settings do not allow an encode greater than fine


for example if you set the size to 100% on a ten second clip you get the same size file as if you had encoded with the fine setting (40%)

I wonder why Canopus have crippled the encoder this way?
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Old February 24th, 2005, 12:37 PM   #10
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Can anyone comment from a technical perspective how the HQ codec compares with Cineform's CFHD codec in terms of multigenerational loss, etc? Pros? Cons?

I've read the Canopus whitepaper ...

http://www.canopus.us/US/pdf/CC_HQCodec_WhitePaper_letter_VA300404-F_proof.pdf

...which states that it is 1440 luma pixels, 720 chroma, 4:2:2, variable bitrate.

I assume it's not wavelet based though?

By the way, the HQ codec shows up in most everything - Virtualdub, AFX, etc.
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Old February 24th, 2005, 02:15 PM   #11
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Graham,

I hope to do that very quality analysis, HQ vs CFHD, just as I have done for DVCPRO-HD and MPEG2 (http://www.cineform.com/technology/quality.htm.) Unfortunately I didn't get the HQ codec when I installed the demo version of Edius. Any hints on what I may have done wrong? Is there another download component I need?

What I know about HQ: I believe is it field based DCT much like MJPEG, and unlike DV which is frame based, this is an efficency trade-off in favor of encoding performance. DCTs have been around forever, so they are a known quanity, they will have good quality if the data-rate is high enough, as data rate increases performance will decrease (same for all codecs really.) DCT can't compete with a wavelet codec for compression efficiently (it is why wavlets where adopted in JPEG2000.) So for the same quality the CFHD will have smaller files, but without actually testing it I can't make any more predictions. It will be fun to find out more about it.
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Old February 24th, 2005, 02:17 PM   #12
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I'm not sure, but the NX has a slot on the main board for a HARDWARE encoder, planned for later release when processors are more powerful, in line with Canopus' scaleable technology approach. Maybe then superfine will become available. Just conjecture, but I know the encoder is planned. It should allow on-the-fly encoding and playback of M2V files straight from the timeline out through firewire - no rendering needed.
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Old February 24th, 2005, 03:08 PM   #13
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maybe so

but what I find intriguing is that the white paper reffed above uses 180mbps , but in reality we cannot get much more than 80mbps

thats bits btw

further edius pro 3 is the core engine for their higher shelf products too

so what is going on Mr Canopus? you have a white paper which cannot be independenly challenged....


David - pointless doing the test until this is sorted, at 80mbps your codec will win most likely
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Old February 24th, 2005, 06:49 PM   #14
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Just to clarify - I don't have the downloadable "Trial" version (which has a number of major features absent or disabled) but rather an unactivated full version that has a 30-day demo period.
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Old February 24th, 2005, 09:52 PM   #15
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It is a good codec and so is Aspects..... BTW The Canopus HQ codec is an intra-frame variable-bitrate 4:2:2 codec. It yields average file sizes between 100-160 Mbps, though there are different quality level presets.
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