March 2, 2016 at 1:38PM

0
You voted '-1'.

Decompress AVCHD

Hi, I have a Nikon D750 only shoot AVCHD. Is AVCHD not good for editing and rendering? Is there any possibility that I shoot it in AVCHD and decompress it into ProRes or other formats that are easier for rendering?

10 Comments

Of course you can do that and it is a little bit smoother if you convert it into something like ProRes because of H.264s GOP structure but on a fast computer it is not like a night and day difference. Usually I do not even bother converting it.

March 2, 2016 at 3:02PM

2
Reply
avatar
Cary Knoop
Member
1870

Yes, transcoding from highly compressed AVCHD format to an editing CODEC like AVID's DNxHD, GoPro's Cineform, or Apple's ProRes will make it easier to edit, faster to render, and will help to preserve as much quality as possible from your original AVCHD footage.

Editing CODECs also make editing on slower computers a lot easier because your computer doesn't have to do as much work to decompress your footage in playback.

March 2, 2016 at 3:05PM, Edited March 2, 3:05PM

8
Reply
Guy McLoughlin
Video Producer
31876

If I shoot it in AVCHD, after I converted to ProRes, will it be the same as I shoot it in ProRes? Thank you

March 3, 2016 at 11:27AM, Edited March 3, 11:27AM

18
Reply
Daming Xing
Student Videographer
154

No.

Every time you render a video to a new codec the quality will become less. It is like making a photocopy of something.

March 3, 2016 at 11:31AM

0
Reply
avatar
Cary Knoop
Member
1870

>>>If I shoot it in AVCHD, after I converted to ProRes, will it be the same as I shoot it in ProRes?

No, because shooting in ProRes means shooting at a much higher bit-rate ( which stores much more image detail ) with a better color space. ProRes is often shot in a 4:2:2 color format which has 2x more color information than shooting with AVCHD which is usually 4:2:0 color format.

Video Color Format Chart
( see the difference between 4:2:0 and 4:2:2 color formats )
( the 4:4:4 format stores the most color information )
https://goo.gl/qeDLwm

March 3, 2016 at 4:23PM, Edited March 3, 4:28PM

0
Reply
Guy McLoughlin
Video Producer
31876

im not sure if your camera has an HDMI out but if it does what you can do record uncompressed into an atomos ninja.

March 4, 2016 at 2:19PM

14
Reply
avatar
Michael Militscher
Director / Commercial Producer
2635

Will Atomos Ninja Star Pocket-Size ProRes Recorder & Deck work too? I am just wondering... thanks!

March 4, 2016 at 2:52PM, Edited March 4, 2:52PM

27
Reply
Daming Xing
Student Videographer
154

I would think so, as long as you have a clean out on your camera I wouldn't see it having any issues.

March 4, 2016 at 3:11PM

0
Reply
avatar
Michael Militscher
Director / Commercial Producer
2635

Go ahead and shoot AVCHD, but use EditReady to easily get the footage into ProRes or DNxHD for editing. It's a great program that allows you to add metadata to your files, helping greatly for smooth editing. I convert my camera footage this way and toss the original files (which are unfriendly to editing apps due to compression).

March 5, 2016 at 6:52AM

16
Reply
avatar
Sathya Vijayendran
Writer/Director/Editor
315

Interesting program! Thanks for sharing!

Too bad it is only available on the Mac OS platform :(

March 5, 2016 at 10:43PM, Edited March 5, 10:45PM

0
Reply
avatar
Cary Knoop
Member
1870

Your Comment