Loads the raw compressedDatastream into raw uncompressed data and processed frameData
A reference to frameData's bytes. May be 8 bit if indexed or 32 bit rgba if not.
You're allowed to edit these values but remember it is your responsibility to keep it consistent with the rest of the file (at least for now, I might change this in the future).
Processed frame data as an image. only set after you call populateData.
Represents a single frame from the file, directly corresponding to the fcTL and fdAT data from the file.