How to read metadata out of EXRs or other file-formats?

[Guest]

My EXRs out of my 3d animation package contains the camera postion/rotation/focal length in the meta data. Is there a possibility to read it out and create a AE 3D camera out of it?

I'm don't know how to access meta data in AE in the first place. I know and use other external ways for exporting and importing 3D cameras or nodes transform but would like to have a simpler solution based on the EXRs alone.

In Nuke there are easy ways to read the meta data and a relatively simple Python script can create a 3D camera out it.

[fnordware]

When you run the ProEXR Comp Creator (download the ProEXR AE plug-in), a hidden text layer is created that has all the file's metadata. If you have a sequence, hold down Shift to get metadata for each frame.

So there's the metadata, now what to do with it? Well, someone should be able to write a script that parses it and then sets up a camera. I have not done the math, but here's a script that provides everything else.