Dumping unmodified raw image data from raw files?

[rt966298]

@ggbutcher

Give me a make/model of camera that libraw handles that way, and I’ll get a DPReview raw file from that camera and poke around the file structure. For NEFs, I can divine the offset and size from the metadata, without need for libraw.

The Panasonic RW2 raw files that are giving me data_size of 0 are from a Panasonic DC-ZS200.

The iPhone DNG raw files that are giving me inconsistent data_size of 1126, 1146, etc., are from an iPhone 12 Pro Max.