-
file size ? from render queue
I did a search and found some dated threads to this question so allow me to ask again. I’m using after effects cs 6 and I’m trying to find out if there is way to know my file size of a project in the render queue without a trial and error approach?
Even if it’s a rough estimation is there a mathematical formula using it’s dimensions such as 4096×2304 20seconds at 24fps quicktime photojpg?
I thought there was a way in after effects to know the file size prior to rendering.
Any insights would be welcome.
thanks, jeff
-
1 Reply
-
[Jeff Wolfram] “I’m using after effects cs 6 and I’m trying to find out if there is way to know my file size of a project in the render queue without a trial and error approach?”
The answer is: it depends. Different codecs work differently.
Some codecs used constant bit rate encoding (or tightly-constrained variable bit rate). For these, each frame is expected to have about the same data size, so the file size is predictable — but the quality of the compression can vary in order to achieve that.
Other codecs use quality-based encoding, which strives for constant quality at the expense of predictable bit-rate.
Others may not fall into either of these categories; for example, “Uncompressed” is both constant bit rate and constant quality.
[Jeff Wolfram] “Even if it’s a rough estimation is there a mathematical formula using it’s dimensions such as 4096×2304 20seconds at 24fps quicktime photojpg?”
PhotoJPEG uses quality-based compression, so the size of the output is dependent on the source material.
Walter Soyka
Principal & Designer at Keen Live
Motion Graphics, Widescreen Events, Presentation Design, and Consulting
RenderBreak Blog – What I’m thinking when my workstation’s thinking
Creative Cow Forum Host: Live & Stage Events
Reply to this Discussion! Login or Sign Up