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Rendering options

Posted: Sat, 6th Oct 2007, 7:25am

Post 1 of 6

RDMSstudio

Force: 903 | Joined: 29th Sep 2007 | Posts: 8

CompositeLab Pro User EffectsLab Pro User

Gold Member

Not sure if this is the right place to post this but I'm a newbie so please forgive...

As a suggestion for future versions of composite pro/ fx pro can compression codec options (such as huffyav) be added to rendering window.
I have done some tests using this codec, in particular combined with videostudio 11 plus. The results have been excellent.

Composite pro has no problems opening AVI compressed with huffyuv but will not allow rendering back to this format.
At the moment I have to render as uncompressed avi then compress using huffy codec. A bit long winded but drive space saving is great and playback within Videostudio is greatly improved due to file size reduction.

Any thoughts?
Posted: Sat, 6th Oct 2007, 7:37am

Post 2 of 6

Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker MacOS User

SuperUser

Welcome to the forums.

On most projects it is best to use uncompressed footage throughout the post-production process, to prevent cumulative quality loss as the footage is tweaked, edited and shifted through the various stages of post. Granted, this does create huge files, but it is generally still the best option. For cases where file sizes simply must be smaller, the DV codecs are available to provide smaller files at still relatively decent quality.

I'm certainly not saying that your suggestion will be ignored or whether it will be implemented or not, as its not up to me, but I can say that the render options quite deliberately only include very high-quality codecs.
Posted: Sat, 6th Oct 2007, 10:07am

Post 3 of 6

RDMSstudio

Force: 903 | Joined: 29th Sep 2007 | Posts: 8

CompositeLab Pro User EffectsLab Pro User

Gold Member

I appreciate what you are saying. I totally agree that video should remain in an uncompressed format. Tests I did with the DV format created artifacts which were not present using huffy, which is why I made the suggestion. Huffy as you know is a "lossless algorythm" and seems to live up to that claim. MJPEG of course is another one, supposedly better, stronger, faster than huffy, but not free.

The reality of 100+ Gig movie files is often a problem with users that have neither the drivespace or processor speed to handle such large numbers when it comes to editing.

If you have time and are curious try rendering a DV file back to DV and compare. Do the same with huffy and try and find a difference.

MPEG-2 of course is a final format for burning DVD's and no pity is given to those that edit with it. AVI is the way to go and I would simply like to see some further options with this format, especially given that I feel it is superior to DVAVI.
Posted: Sat, 6th Oct 2007, 4:17pm

Post 4 of 6

Axeman

Force: 17995 | Joined: 20th Jan 2002 | Posts: 6124

VisionLab User VideoWrap User PhotoKey 5 Pro User MuzzlePlug User PowerPlug User PhotoKey 3 Plug-in User FXhome Movie Maker FXpreset Maker MacOS User

SuperUser

Good points, thanks for the explanation.

Another technique which might be helpful is not rendering out your entire movie to export to another program. By working in a scene-by-scene basis, you can keep file sizes a bit more manageable, even with uncompressed footage. This doesn't really help with overall storage space issues a ton, unless you delete things as you go, but it can aid in easing up the processor load a bit.
Posted: Sat, 6th Oct 2007, 11:32pm

Post 5 of 6

RDMSstudio

Force: 903 | Joined: 29th Sep 2007 | Posts: 8

CompositeLab Pro User EffectsLab Pro User

Gold Member

Yup, already do that. Videostudio 11 has smart rendering so previewing massive files is not really a big issue. I get a lot of source files in MPEG-2, so the first thing I do is convert them to AVI to avoid sync issues etc when editing (blast those disc cameras).

So my personal conundrum is that MPEG to DV AVI can show artifacts if multiple processes are used.I've found huffyuv more faithfull to original source when faced with this situation. Uncompressed AVI as archive and huffyuv AVI for editing where you can end up with multiple copies of files.
In business you throw away nothing till the job gets done and with multiple customers the numbers can get scary.

Video shot on DV AVI may as well stay in that format, I believe it will survive around 5+ recompressions without visible damage. It seems to me that MPEG-2 cameras are becoming the norm for consumer/prosumer and naturally I try and find the best solution to keep workflow/quality in balance.

As an aside I think Composite Pro is a beautiful piece of software and understand totally that RAW AVI is it's mainstay intent. With a product this good why degrade the results.
Real world application for non-critical projects such as political advertising, band video's and TV commercials could trade a little file size quite easily. twisted

Thanks for your responses by the way. It's nice to get feedback from someone further up the tree that understands I'm not being critical or ignorant, just looking for options in a time constrained world.... tard
Posted: Tue, 22nd Jan 2008, 8:00am

Post 6 of 6

RDMSstudio

Force: 903 | Joined: 29th Sep 2007 | Posts: 8

CompositeLab Pro User EffectsLab Pro User

Gold Member

Nice to see the new version supports huffyuv. biggrin

(All I need now is a good avi to mpeg-2 converter and I'll die a happy editor.) tard