Function: exif-parse-buffer

exif-parse-buffer is a byte-compiled function defined in exif.el.gz.

Signature

(exif-parse-buffer &optional BUFFER)

Documentation

Parse BUFFER (which should be a JPEG file) and return the Exif data, if any.

The return value is a list of Exif items.

If the data is invalid, an exif-error is signaled.

Probably introduced at or before Emacs version 27.1.

Source Code

;; Defined in /usr/src/emacs/lisp/image/exif.el.gz
(defun exif-parse-buffer (&optional buffer)
  "Parse BUFFER (which should be a JPEG file) and return the Exif data, if any.
The return value is a list of Exif items.

If the data is invalid, an `exif-error' is signaled."
  (setq buffer (or buffer (current-buffer)))
  (with-current-buffer buffer
    (if enable-multibyte-characters
        (with-temp-buffer
          (set-buffer-multibyte nil)
          (let ((dest (current-buffer)))
            (with-current-buffer buffer
              (encode-coding-region (point-min) (point-max)
                                    buffer-file-coding-system
                                    dest))
            (when-let ((app1 (cdr (assq #xffe1 (exif--parse-jpeg)))))
              (exif--parse-exif-chunk app1))))
      (save-excursion
        (when-let ((app1 (cdr (assq #xffe1 (exif--parse-jpeg)))))
          (exif--parse-exif-chunk app1))))))