As this library was merely a stepping-stone in a larger effort and the exif command-line tool is available for most environment a decision was made to just call that.įor convenience, SetTag() always passes the flag to create an EXIF segment if it doesn't already exist. However, even though the JPEG file is structured into individually indexed pieces, you can't successfully parse the entire file without being required to decode the image data (most segments, except for the actual image data, have length prefixes). Then, I started parsing JPEG files (which were the primary use-case, though other image types support EXIF) directly in order to extract and update the EXIF data. The original plan was to directly integrate the libexif library but it became a non-trivial effort to find the correct libjpeg flavor and version. et.SetShowCommands(true) tv := & tagVisitor so that we keep what we had and no division is performed.

Of := OutputFilepath err = copyToFilepath( f, & of)

Var imageFilepath string o := readOptions()

Exiftool brew