Compression Choice for Quality? at DVinfo.net

Go Back   DV Info Net > Cross-Platform Post Production Solutions > Adobe Creative Suite

Adobe Creative Suite
All about the world of Adobe Premiere and its associated plug-ins.


Reply
 
Thread Tools Search this Thread
Old May 2nd, 2012, 09:15 AM   #1
Regular Crew
 
Join Date: Feb 2012
Location: England
Posts: 49
Compression Choice for Quality?

Hi,

Im archiving a load of PP projects and want to encode out each video with little compression but with a manageable file size. (This is mainly for using the videos for demo-reels etc)

AVI uncompressed really isnt an option, a 3 minute video is around 10gb (im cleaning up my PP files to save space!)

Is there a generally accepted codec for light compression/decent file size?
Shaun Forsdyke is offline   Reply With Quote
Old May 2nd, 2012, 10:04 AM   #2
Inner Circle
 
Join Date: Aug 2006
Location: Efland NC, USA
Posts: 2,315
Re: Compression Choice for Quality?

DNxHD and ProRes are popular formats with many options for bitrate.

MPEG2 is viable but not all encoders offer the higher bitrates (in the 80-100mbs range) that would be best for high quality arching.
__________________
http://www.LandYachtMedia.com
Chris Medico is offline   Reply With Quote
Old May 2nd, 2012, 10:05 AM   #3
Major Player
 
Join Date: Jan 2004
Location: Cornwall UK
Posts: 793
Re: Compression Choice for Quality?

H264. I regularly compress to this for replay use at exhibitions etc. Replayed via HDMI with a WD Media player. I have over 2 hours of footage on a 16gb memory stick, plays back without a fault. The footage is EX1 original, compessed to H264 @ 6 mbps, looks fantastic, compresses really quickly, and the file sizes are very small
__________________
Colin
Colin Rowe is offline   Reply With Quote
Old May 2nd, 2012, 10:20 AM   #4
Regular Crew
 
Join Date: Feb 2012
Location: England
Posts: 49
Re: Compression Choice for Quality?

Thanks for the replies. Just to be clear, I intend to use these files in the future for editing a showreel together. I was under the impression its not a good idea to use h.264 for editing.

If you're editing a compressed file (say h.264) and encode it again (h.264) will you see a noticable drop in quality?
Shaun Forsdyke is offline   Reply With Quote
Old May 2nd, 2012, 10:30 AM   #5
Major Player
 
Join Date: Dec 2007
Location: London, UK
Posts: 277
Re: Compression Choice for Quality?

Depending on the quality of the encoding, you may not notice a perceivable loss in h264 to h264 re-encoding, but you definitely lose a lot of information even in the first encoding compared to lossless/"visually lossless" compression. In any case, personally I would *never* use h264 as my only archive copy. It's a delivery format, not an editing format.
In addition to ProRes and DNxHD, CineForm is also a great "visually lossless" option.
Then there are also mathematically lossless compressors, like Lagarith and UT-video, but you may not be satisfied with their compression ratio.
Jon Shohet is offline   Reply With Quote
Old May 2nd, 2012, 10:31 AM   #6
Regular Crew
 
Join Date: Aug 2006
Location: Brussels, Belgium
Posts: 161
Re: Compression Choice for Quality?

I archive in Cineform whenever possible. The files are still big, but much less than uncompressed, and pretty much lossless. It edits and color-corrects very well. One minute of footage (1920 x 1080) is about 650MB. You will find a lot of info on it in the forum just below this one.
Bill Engeler is offline   Reply With Quote
Old May 2nd, 2012, 01:06 PM   #7
Inner Circle
 
Join Date: Aug 2006
Location: Efland NC, USA
Posts: 2,315
Re: Compression Choice for Quality?

Quote:
Originally Posted by Shaun Forsdyke View Post
Thanks for the replies. Just to be clear, I intend to use these files in the future for editing a showreel together. I was under the impression its not a good idea to use h.264 for editing.

If you're editing a compressed file (say h.264) and encode it again (h.264) will you see a noticable drop in quality?
h.264 would not be on my list as an archival format if there was any possibility of editing in the future. Storage space is too cheap in my opinion to compromise that much.
__________________
http://www.LandYachtMedia.com
Chris Medico is offline   Reply With Quote
Old May 2nd, 2012, 01:58 PM   #8
Major Player
 
Join Date: Oct 2009
Location: Reno, NV
Posts: 553
Re: Compression Choice for Quality?

Quote:
Originally Posted by Chris Medico View Post
DNxHD and ProRes are popular formats with many options for bitrate.
For archiving use a format that has been standardized. DNxHD will soon be standardized as SMPTE 2019 whereas Cineform and ProRes are single vendor proprietary formats. Unless you recorded analog or uncompressed, your source probably originated as a compressed digital video format in the camera. Assuming your camera used a standard format, that is the obvious footage to archive.
Eric Olson is offline   Reply With Quote
Old May 2nd, 2012, 02:14 PM   #9
Inner Circle
 
Join Date: Aug 2006
Location: Efland NC, USA
Posts: 2,315
Re: Compression Choice for Quality?

Quote:
Originally Posted by Eric Olson View Post
For archiving use a format that has been standardized. DNxHD will soon be standardized as SMPTE 2019 whereas Cineform and ProRes are single vendor proprietary formats. Unless you recorded analog or uncompressed, your source probably originated as a compressed digital video format in the camera. Assuming your camera used a standard format, that is the obvious footage to archive.
I didn't want to get bogged down in which one is better kind of debate but my personal choice for archiving is DNxHD.

It is also my choice for acquisition when I'm using my PIX240.
__________________
http://www.LandYachtMedia.com
Chris Medico is offline   Reply With Quote
Old May 2nd, 2012, 06:43 PM   #10
Regular Crew
 
Join Date: Feb 2012
Location: England
Posts: 49
Re: Compression Choice for Quality?

Really appreciate all the replies. Thank you.

I downloaded, and gave DNxHD a try. Very impressive. Quality looks uneffected. 2gb for 3m30 720p video. That'll do nicely.

My work is mostly unpaid and all web based so I dont need 100% perfection, nor do I own any expensive codecs. Free stuff is nice for the moment!

Time to delete that media cache!
Shaun Forsdyke is offline   Reply With Quote
Old May 3rd, 2012, 02:53 AM   #11
Trustee
 
Join Date: Aug 2006
Location: Rotterdam, Netherlands
Posts: 1,832
Re: Compression Choice for Quality?

Surprising that nobody mentioned the two free and visually lossless codecs, that are at the top of my list: Lagarith and UT.
Harm Millaard is offline   Reply With Quote
Old May 3rd, 2012, 03:29 AM   #12
Major Player
 
Join Date: Apr 2006
Location: Warsaw/Poland
Posts: 716
Re: Compression Choice for Quality?

Lagarith and UT were mentioned.

We used to archive in ProRes/Cineform, but now we're switching to DNxHD.
__________________
Creative Impatience - The Solace of Simple Solutions. A few useful plugins for Adobe users, and my remarks on the tools and the craft in general.
Bart Walczak is offline   Reply With Quote
Old May 3rd, 2012, 05:55 AM   #13
Major Player
 
Join Date: Dec 2007
Location: London, UK
Posts: 277
Re: Compression Choice for Quality?

Quote:
Originally Posted by Bart Walczak View Post

We used to archive in ProRes/Cineform, but now we're switching to DNxHD.
Hi Bart, could you elaborate on why? I was under the impression, perhaps wrongly so, that CineForm offers a better quality at equivalent compression compared to ProRes and DNxHD
Jon Shohet is offline   Reply With Quote
Old May 4th, 2012, 04:57 PM   #14
Major Player
 
Join Date: Apr 2006
Location: Warsaw/Poland
Posts: 716
Re: Compression Choice for Quality?

DNxHD is free. Cineform would require us to spend money on additional licences.
__________________
Creative Impatience - The Solace of Simple Solutions. A few useful plugins for Adobe users, and my remarks on the tools and the craft in general.
Bart Walczak is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

Professional Video
(800) 833-4801
Portland, OR

B&H Photo Video
(866) 521-7381
New York, NY

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > Cross-Platform Post Production Solutions > Adobe Creative Suite

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 11:26 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network