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render file size is huge

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tom edwards
render file size is huge
on Jun 27, 2014 at 8:15:28 pm
Last Edited By tom edwards on Jun 27, 2014 at 8:16:44 pm

i'm rendering a 7 second clip of a mov file shot with a canon 550d.
i've warp stabilized the clip and done nothing else to it.
when i render it out (whether as a mov or h264 file), the rendered file is over 1gb.
the entire original 11:57 clip from which i grabbed the 7 seconds is 3.98gb.

add to that i changed the comp settings from 1080 to 720 (to remove the black from the stabilized footage).

i am using "best" settings in render.

btw, rendering said clip utilizes 100% of my cpu. i just rendered a 6 second clip with text and six clips all running at the same time and only a fraction of the cpu was used and it rendered it like a hot knife through butter.
the stabilized clip is taking 20 minutes.

does stabilizing a clip add that much to the file size?
tks

ps using cs6


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tom edwards
Re: render file size is huge
on Jun 27, 2014 at 8:35:28 pm

i did figure out how to drop the project into AME and it rendered out in a few minutes -- 11MB file.

still curious why AE makes the file king kong size.


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Michael Szalapski
Re: render file size is huge
on Jun 27, 2014 at 8:55:57 pm

[tom edwards] "does stabilizing a clip add that much to the file size?"


How large a rendered file is has nothing whatsoever to do with what effects have been applied and all to do with the render settings you've chosen. In AE, your data rate was set to be a lot higher than the data rate that the Adobe Media Encoder defaulted to.

Encoding is quite the science and there are a lot of factors involved. If you're just starting out, you should probably learn about things like codecs, formats, and things like data rate.

- The Great Szalam
(The 'Great' stands for 'Not So Great, in fact, Extremely Humble')

No trees were harmed in the creation of this message, but several thousand electrons were mildly inconvenienced.


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tom edwards
Re: render file size is huge
on Jun 27, 2014 at 9:05:41 pm

actually i'm very familiar with many adobe products. this one just happened to have me stumped as i never ran into it prior.


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Todd Kopriva
Re: render file size is huge
on Jun 28, 2014 at 3:05:32 am

Start here:
"FAQ: Why is my output file huge...?"

---------------------------------------------------------------------------------------------------------
Todd Kopriva, Adobe Systems Incorporated
After Effects quality engineering
After Effects team blog
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tom edwards
Re: render file size is huge
on Jun 28, 2014 at 3:25:57 am

very helpful Todd. Just what I was looking for. Thanks


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