HDR-FX1 & Avid Liquid: Import M2V at DVinfo.net

Go Back   DV Info Net > Cross-Platform Post Production Solutions > Avid Editing Family

Avid Editing Family
All flavors of Media Composer, Symphony and more.


Reply
 
Thread Tools Search this Thread
Old October 26th, 2006, 06:59 PM   #1
Regular Crew
 
Join Date: Oct 2006
Location: Fort Worth, Texas
Posts: 83
HDR-FX1 & Avid Liquid: Import M2V

Hey guys, I need some help.

I recently just got my FX1 (after fighting for 3 days with B&H - but they finally got it right) and when I capture video with Liquid it saves the movie as a *.m2v file for video and two seperate *.wav files for sound... what is up with that?

I figured it would capture it as a *.m2t file.

What am I doing wrong here?
John M. Graham is offline   Reply With Quote
Old October 27th, 2006, 05:37 AM   #2
Regular Crew
 
Join Date: Oct 2004
Location: Saskatoon, Canada (was London, UK)
Posts: 138
I believe that's what it always does. That's the video and audio extracted from the .m2t source.
Mark Grant is offline   Reply With Quote
Old October 27th, 2006, 07:33 AM   #3
Regular Crew
 
Join Date: Oct 2006
Location: Fort Worth, Texas
Posts: 83
Thanks Mark, but how do I make it into a *.m2t file?
John M. Graham is offline   Reply With Quote
Old October 27th, 2006, 11:08 AM   #4
Inner Circle
 
Join Date: Nov 2005
Location: Elk Grove CA
Posts: 6,838
Quote:
Originally Posted by John M. Graham
Thanks Mark, but how do I make it into a *.m2t file?
Same thing happens in Pinnacle Studio 10, which runs on same engine. You can render out to a single mpg2 file which is an m2t file. The evidence I have seen is that it doesn't actually reencode the unedited portions of the file, so I'm guessing the reencoding does of the orginal capture does not reduce quality, the same way Vegas or Premiere does. In Pinnacle, they actually separate them out, but they are locked together on time line. I suspect it is an issue with their editing process, which includes continuous background rendering just at the editing point as you are editing.

This is conjecture, but I think that what speeds up editing with the Liquid engine. I would like to know if anyone can confirm this ?
__________________
Chris J. Barcellos
Chris Barcellos is offline   Reply With Quote
Old November 3rd, 2006, 11:41 AM   #5
Major Player
 
Join Date: Nov 2004
Location: Portsmouth, UK
Posts: 611
Quote:
Originally Posted by Chris Barcellos
Same thing happens in Pinnacle Studio 10, which runs on same engine. You can render out to a single mpg2 file which is an m2t file. The evidence I have seen is that it doesn't actually reencode the unedited portions of the file, so I'm guessing the reencoding does of the orginal capture does not reduce quality, the same way Vegas or Premiere does.

<snip>

This is conjecture, but I think that what speeds up editing with the Liquid engine. I would like to know if anyone can confirm this ?
This is called "Split GOP Editing" (I think) and FCP does the same thing on the Mac, though I'm not sure precisely how it works. After all, in HDV the I-frame has to be every 15 (or 12) frames. So how do Liquid, Studio 10 and FCP manage this without re-encoding, unless you are only allowed to edit on I-frames.

Since this would be unacceptable for editors, I think almost all footage would end up being re-encoded at some stage - or certainly at the output/export stage.
__________________
Shorts::Cut - www.shortscut.org.uk
The Short Film Festival for Portsmouth & Southsea.
Dylan Pank is offline   Reply With Quote
Old November 3rd, 2006, 11:58 AM   #6
 
Join Date: Jan 2004
Location: Stockton, UT
Posts: 5,648
You don't want m2t in Liquid.
Transport streams are just that, and so Avid sets up the capture to recognize the stream as an elementary stream, which *can* provide for more efficiency.
__________________
Douglas Spotted Eagle/Spot
Author, producer, composer
Certified Sony Vegas Trainer
http://www.vasst.com
Douglas Spotted Eagle is offline   Reply With Quote
Old November 3rd, 2006, 07:35 PM   #7
Regular Crew
 
Join Date: Oct 2006
Location: Fort Worth, Texas
Posts: 83
Thanks for the responses everyone. I'm glad to hear that my Liquid is doing what it's supposed to.
John M. Graham is offline   Reply With Quote
Old December 5th, 2006, 10:26 PM   #8
HDV Cinema
 
Join Date: Feb 2003
Location: Las Vegas
Posts: 4,007
Quote:
Originally Posted by Douglas Spotted Eagle
You don't want m2t in Liquid.
Transport streams are just that, and so Avid sets up the capture to recognize the stream as an elementary stream, which *can* provide for more efficiency.
Anyway to import Liquid HDV into Xpress Pro? So far it reports "unsupported MPEG."
__________________
Switcher's Quick Guide to the Avid Media Composer >>> http://home.mindspring.com/~d-v-c
Steve Mullen is offline   Reply With Quote
Old December 6th, 2006, 10:42 PM   #9
Major Player
 
Join Date: Feb 2006
Location: Houston
Posts: 789
Quote:
Originally Posted by Steve Mullen
Anyway to import Liquid HDV into Xpress Pro? So far it reports "unsupported MPEG."
I've only been able to export QT's from Liquid to Xpress Pro. I think it has to do with the demuxed nature of m2v?

I've had much better luck going from Xpress m2t to Liquid m2v. In fact, my workflow now is edit in Xpress (720/30p) xfer to Liquid for finishing, color correction and output to pratically anything. Of course I edit 24p in Liquid because ... well you know why.
__________________
David Parks: DP/Editor: Jacobs Aerospace at NASA Johnson Space Center
https://www.youtube.com/user/JacobsESCG
David Parks 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 > Avid Editing Family

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 03:55 AM.


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