NLE for mts?

B

Bengali

Active member
Hi,

I understand the need to convert and encode if you are editing and converting your video files(.wmv,.avi,etc...) to view on the pc.

How about if you make a DVD or Blu ray disc? is there such video editing software that can edit the MTS directly and then save it as MTS. In this case, there should be no need for any converting/encoding?

I've tried 3 different blu ray players and they can play the GH1's mts files on standard dvd using the blu ray file structure.

eventually I would like to do some editing and burn them to disk. right now, I just have clips which is great for archiving to dvd.

thanks.
 
To my knowledge there is no direct workflow. The nature of AVCHD is that it is a very intraframe dependent codec so whenever you are cutting it up you are changing the makeup of the keyframes and encoding and so it must be re-encoded.
 
Edius Neo 2.5 can play/edit the MTS files natively and then export as AVCHD into an MTS file. But as blazer003 says, it will be decoding and re-encoding your clips to do that.
 
mts is not a spec file type for disc output, be it dvd or bluray...it's just a wrapper. if you're looking to get the closest thing to your "direct from camera" look on disc will require compression, and that compression comes in so many forms. good ones cost a a bundle, but do some research...some do come cheap!
 
Premiere Pro Cs4 4.2.1 version can read and work with AVCHD files but need render the files for realtime playback, the render is fast enough for normal work, but a pain in the a** for professional and fast editing, i prefer use FinalCut trough convert my files with Log and Transfer.
 
thanks for your replies. very informative.

now I see why most have a gripe about the gh1's chosen video format.

roughly, how long does it take to render say 10-20 mins of video?

still have not touched the editing process as of yet, will get there some day.
 
There are some PC based editing programs that claim to be able to perform basic edits without re-encoding AVCHD, but there's usually a downside. For frame accurate editing they do need to mess with the original at the joins, and often that shows. Nero Vision springs to mind, also Cyberlink PowerDirector, but I can't now be sure how well they work with actual GH1 footage.

Insofar as such software does exist, it's only really good for producing a rough cut in a little time - maybe handy for showing what you've just shot with the really bad bits taken out, or if you were racing for time in a TV newsroom, but that's about all.
 
Your only answers are Sony Vegas 9 (only for the 720 60p) mode, or Edius 2.5 neo booster (although I am still not totally convinced). Or edius 5
 
I use tmpgenc to convert the AVCHD into AVI using the Lagarith codec and do the inverse pulldown at the same time. I then edit with Vegas and export as M2V for bluray.
 
blazer003 said:
The nature of AVCHD is that it is a very intraframe dependent codec so whenever you are cutting it up you are changing the makeup of the keyframes and encoding and so it must be re-encoded.
Click to expand...
You must mean "interframe," not "intraframe."
 
ydgmdlu said:
You must mean "interframe," not "intraframe."
Click to expand...

You are correct. I can never remember which is which, so I looked it up here:

http://www.serialdigital.com/2006/03/21/intraframe-vs-interframe/

Put simply, interframe compression compiles each frame discreetly – imagine a single JPEG (or similar) image representing each frame – perhaps 15, 25 or even 30 per second.
A more bit-friendly technique is to employ intraframe compression, which compares the differences from one frame to the next, and saves bandwidth by only processing significant changes in particular pixels.
Click to expand...
However, they do indeed have it backwards after thinking about it and according to the wiki page:
Intraframe versus interframe compression
One of the most powerful techniques for compressing video is interframe compression. Interframe compression uses one or more earlier or later frames in a sequence to compress the current frame, while intraframe compression uses only the current frame, which is effectively image compression.
Click to expand...
 
Simple to remember. "Inter" means "between," "intra" means "within" or "inside." An easy analogy is Internet (the global computer network) vs. intranet (a single group's private, internal network).
 
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