Exporting lossless from ProRes 422HQ (apch) file for Cinelerra (or anything non-FCP)

elihubogan · Feb 6, 2012, 11:04 AM

Hi all, first post so be gentle.

I have two .movs that are ProRes 422 HQ (apch), and I'd like to export them or convert them to another codec so I can edit them in Linux/Cinelerra (or anything non-FCP). I've been trying to use ffmpeg, but I'm not confident I'm getting lossless conversion (export file size is 20% of the original).

Does anyone do this regularly? I should be able to do it in FCP or Quicktime Pro, I think, but everything I export in Quicktime or Quicktime conversion ends up looking dark or otherwise terrible.

My ffmpeg command is:
"ffmpeg -i original.mov -sameq -vcodec mpeg4 newMovie.mov"

P.S. My files also came with a "Blackmagic" codec, so maybe I'm missing something else...

Thanks!

WRP · Feb 6, 2012, 01:56 PM

Open in quicktime pro. File > Export. Under quicktime movie options choose uncompressed 10-bit. It may have a different color space but it won't look bad.

Feb 6, 2012, 11:04 AM	#1
elihubogan macrumors newbie Join Date: Feb 2012	Exporting lossless from ProRes 422HQ (apch) file for Cinelerra (or anything non-FCP) Hi all, first post so be gentle. I have two .movs that are ProRes 422 HQ (apch), and I'd like to export them or convert them to another codec so I can edit them in Linux/Cinelerra (or anything non-FCP). I've been trying to use ffmpeg, but I'm not confident I'm getting lossless conversion (export file size is 20% of the original). Does anyone do this regularly? I should be able to do it in FCP or Quicktime Pro, I think, but everything I export in Quicktime or Quicktime conversion ends up looking dark or otherwise terrible. My ffmpeg command is: "ffmpeg -i original.mov -sameq -vcodec mpeg4 newMovie.mov" P.S. My files also came with a "Blackmagic" codec, so maybe I'm missing something else... Thanks!
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Feb 6, 2012, 01:56 PM	#2
WRP macrumors 6502a Join Date: Jul 2011 Location: Boston	Open in quicktime pro. File > Export. Under quicktime movie options choose uncompressed 10-bit. It may have a different color space but it won't look bad.
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