Simple way to conform 30p to 24p? at DVinfo.net

Bill Binder · April 6th, 2010, 05:40 PM

Anyone know of a simple solution for conforming 30p (drop frame) 5D2 files to 24p (drop frame) on a PC?

I've been doing it in Vegas by slowing the 30p clip to 80% of original speed with no resampling and then rendering out a 24p cineform file, but there must be a better way (that doesn't cost a lot of money)?

I was thinking of operating on the original out-of-camera files, but another approach, maybe even a safer one at that, would be to operate on my cineform intermediate files (which is what I use in my own workflow). I'd love to be able to get home, quickly transcode everything (both 24p and 30p original footage) to cineform, and then quickly conform the 30p cineform clips to 24p, such that I end up with everything as 24p cineform that I can online and start editing with.

I was kind of hoping to just find some simple tool that could rewrite the file's header or something (I don't care about the audio, so it can be dropped, or stretched or not stretched, whatever).

Any ideas?

Matthew Roddy · April 7th, 2010, 10:44 AM

This has been covered heavily here in the forums.
A search will treat you well.

Short answer, there is no easy/clean path from 30P to 24P. It's all complex and only marginally good-looking -depending on the viewer's opinion.

Evan Donn · April 7th, 2010, 10:55 AM

Actually he's not talking about converting but rather conforming, which should be an easy process. I know you can do what you're describing with Cinema Tools on the mac, but unfortunately I don't know what the pc equivalent would be.

Bill Binder · April 7th, 2010, 12:38 PM

Quote:

Originally Posted by Matthew Roddy

This has been covered heavily here in the forums.
A search will treat you well.

Short answer, there is no easy/clean path from 30P to 24P. It's all complex and only marginally good-looking -depending on the viewer's opinion.

Sorry, but I'm NOT talking about transcoding/converting, I'm talking about conforming (slowing it down), which looks perfect (no interpolation or blending of frames).

Richard Hunter · April 7th, 2010, 05:54 PM

Hi Bill. If you use Edius you can just change the frame rate setting in the file properties. It will then play back at the new frame rate. And if your PC is fast enough, you don't even need to transcode the footage to get real time playback in Edius.

Also, when Edius 5.5 is released (supposed to be quite soon), it will have the AVCHD booster incorporated, which works with Canon files and provides much more real time capabilites for these highly compressed files.

Richard

April 6th, 2010, 05:40 PM	#1
Bill Binder Major Player Join Date: Jun 2005 Location: San Francisco Posts: 542	Simple way to conform 30p to 24p? Anyone know of a simple solution for conforming 30p (drop frame) 5D2 files to 24p (drop frame) on a PC? I've been doing it in Vegas by slowing the 30p clip to 80% of original speed with no resampling and then rendering out a 24p cineform file, but there must be a better way (that doesn't cost a lot of money)? I was thinking of operating on the original out-of-camera files, but another approach, maybe even a safer one at that, would be to operate on my cineform intermediate files (which is what I use in my own workflow). I'd love to be able to get home, quickly transcode everything (both 24p and 30p original footage) to cineform, and then quickly conform the 30p cineform clips to 24p, such that I end up with everything as 24p cineform that I can online and start editing with. I was kind of hoping to just find some simple tool that could rewrite the file's header or something (I don't care about the audio, so it can be dropped, or stretched or not stretched, whatever). Any ideas? __________________ BayTaper.com \| One man's multimedia journey through the San Francisco live jazz and creative music scene.

April 7th, 2010, 10:55 AM	#3
Evan Donn Major Player Join Date: Feb 2006 Location: Philadelphia Posts: 795	Actually he's not talking about converting but rather conforming, which should be an easy process. I know you can do what you're describing with Cinema Tools on the mac, but unfortunately I don't know what the pc equivalent would be. __________________ My latest short documentary: "Four Pauls: Bring the Hat Back!"

April 7th, 2010, 10:44 AM	#2
Matthew Roddy Major Player Join Date: Jan 2006 Location: Riverside, Ca Posts: 307	This has been covered heavily here in the forums. A search will treat you well. Short answer, there is no easy/clean path from 30P to 24P. It's all complex and only marginally good-looking -depending on the viewer's opinion.

April 7th, 2010, 05:54 PM	#5
Richard Hunter Trustee Join Date: Dec 2004 Location: Lipa City Batangas, Philippines Posts: 1,110	Hi Bill. If you use Edius you can just change the frame rate setting in the file properties. It will then play back at the new frame rate. And if your PC is fast enough, you don't even need to transcode the footage to get real time playback in Edius. Also, when Edius 5.5 is released (supposed to be quite soon), it will have the AVCHD booster incorporated, which works with Canon files and provides much more real time capabilites for these highly compressed files. Richard