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The encoding of your source media failed as encoding from H.264 to ProRes 4444 is not supported.

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Justin Crowell
The encoding of your source media failed as encoding from H.264 to ProRes 4444 is not supported.
on Feb 24, 2015 at 1:32:31 am

I'm trying to convert 4K H.264 footage to 4K 4444 footage and getting this error. Any idea why? It's extremely frustrating, and the error explains nothing.

Editor, Motion Graphics Designer, Director
JustinCrowell.com


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Todd Kopriva
Re: The encoding of your source media failed as encoding from H.264 to ProRes 4444 is not supported.
on Feb 24, 2015 at 6:39:50 am

It's a restriction that Apple puts on the use of their codecs.

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Todd Kopriva, Adobe Systems Incorporated
After Effects product manager and curmudgeon
After Effects team blog
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Justin Crowell
Re: The encoding of your source media failed as encoding from H.264 to ProRes 4444 is not supported.
on Feb 24, 2015 at 9:52:37 pm

Oh wow, that's really bizarre...I wish the error handling was a bit more clear.

Thanks, though, Todd.

Editor, Motion Graphics Designer, Director
JustinCrowell.com


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Ryan Holmes
Re: The encoding of your source media failed as encoding from H.264 to ProRes 4444 is not supported.
on Feb 25, 2015 at 6:31:15 pm

You should be able to transcode to ProRes422 or (HQ) from h.264.

Out of curiosity why would want to go from h.264 to ProRes 4x4? Obviously, you're not gaining quality. I'm just curious what the reason for that codec is versus a standard ProRes or (HQ) (both of which are still over kill for footage originating in h.264, imho).

Ryan Holmes
http://www.ryanholmes.me
@CutColorPost


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Justin Crowell
Re: The encoding of your source media failed as encoding from H.264 to ProRes 4444 is not supported.
on Feb 25, 2015 at 7:46:53 pm

Understood. I'm testing some Gh4 footage upon which there will be a ton of roto and green-screen work. So, just seeing if the keys we can pull are better done when there is some increased interpolated chrominance data. If it were a simple cut and color, I'd be in full agreement. Just want to see how AE/Nuke handle things.

Most likely I'll just end up going with HQ.

Editor, Motion Graphics Designer, Director
JustinCrowell.com


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Jan Vork
Re: The encoding of your source media failed as encoding from H.264 to ProRes 4444 is not supported.
on Oct 27, 2015 at 1:40:11 pm

Today I came across the very same limitation.

My arguments to convert H.264 to ProRes4444:
I am working on a montage with 1920x1080 ProRes4444 footage, where some shots are filmed with a drone-camera that outputs 4K H.264.
I want my footage to all have the same codec and resolution for the rest of the process - I have to convert anyway, so I prefer to go to the best workable codec, while losing as less data as possible. I gues the 4444 codec qualifies better for this than 422.
For grading 4444 adds more room 'in between' the restricted H.264 colors.
I like to think about color depth as if it where spatial resolution: converting a lo-res image to a higer res does not improve quality, but it allows to add detail.

Now I am going to render it via After Effects.

http://www.jaydude.nl


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