Received: (at submit) by debbugs.gnu.org; 11 Sep 2024 12:32:37 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Sep 11 08:32:37 2024 Received: from localhost ([127.0.0.1]:37922 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1soMWS-0007h0-BR for submit <at> debbugs.gnu.org; Wed, 11 Sep 2024 08:32:37 -0400 Received: from lists.gnu.org ([209.51.188.17]:48768) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <misohena@HIDDEN>) id 1soLEd-0003RM-8J for submit <at> debbugs.gnu.org; Wed, 11 Sep 2024 07:10:08 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <misohena@HIDDEN>) id 1soLEW-0004c6-ML for bug-gnu-emacs@HIDDEN; Wed, 11 Sep 2024 07:10:00 -0400 Received: from mail-pl1-x62d.google.com ([2607:f8b0:4864:20::62d]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from <misohena@HIDDEN>) id 1soLEU-0007GA-Bu for bug-gnu-emacs@HIDDEN; Wed, 11 Sep 2024 07:10:00 -0400 Received: by mail-pl1-x62d.google.com with SMTP id d9443c01a7336-2059112f0a7so60725625ad.3 for <bug-gnu-emacs@HIDDEN>; Wed, 11 Sep 2024 04:09:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1726052996; x=1726657796; darn=gnu.org; h=mime-version:message-id:date:subject:to:from:from:to:cc:subject :date:message-id:reply-to; bh=Q1xLvc5VZpj+Nvl0tGAMlDrtbT8cMHQsxaHxRf/3tSQ=; b=njATeO2lDkgvsVYXgEtPMkcovfPX812o1x2UfVpSx0MqOeMDdpO5mRt0gUzoD+q/7J 83KyQwr6cAwXisg101jC9gy7l3XSIuogJSSciW4Bm/qYX777Gn2issQlPvnP+Tt5pHYK vu3HGiJ2chFAxuSAdoKHkLgo21hhriLeT27QxHXL8HMsNVbB9ozq7XRBx0NyvrB1RizJ 7BTn8vF+da+xmtfyLnBjtM04IOmsukzWS+Pi+UlGh5FTX+4pA5dFqUCWiYmU93sLH1wF 40ZriMcoBeJdDjqe1I2j11l3kYhJtRm3Z/FhSTKYETdTr776maE7OHqb0bZFRIZk7wtf 5giw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1726052996; x=1726657796; h=mime-version:message-id:date:subject:to:from:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=Q1xLvc5VZpj+Nvl0tGAMlDrtbT8cMHQsxaHxRf/3tSQ=; b=amIV2sn3HCr0fLmRY3e7QPZlXH/ui7tVkuUMm/biEjhge2aHImLTroVESiaMzU/66e b5X1YSxMyyj1V69cpFd9fL9lEBumOeBa8rE5dfgt7AuhPjZ+OJbib8VnPPG734/Y2xrH uduUe/u5ZAOizLEBn8JBjQUqLzSKKAWuS2k1dPVvQr4TI8Q7IY+mG6kriyMp2+0FlQRT PwBL+CUtVJYAtkLBAifQpljifSJpaCDIrshLsRjD6ZlSQGuWK/i/nhBmc08rfHMRI9AR yFSQzLxmuEgwjk0gAtlib5N0ArBchUZLzE+3t2r5leSwGJK51DRPIu/48yrddsnq/mIY w/nQ== X-Gm-Message-State: AOJu0Yx6KuOq6Lp4XMfhzDLu1zKxQJQqJ+aNp5PDDwh2tcDU+MZkI4rw jUAG98os2/JTdKl5lY86jLCMXzDpcdS/Nj6/+cFViczZfLe3KzFRqwjiEg== X-Google-Smtp-Source: AGHT+IGc/MfiSQfVrlo/mIKe/6zMCxy/e80SCqbeWB0ZmLbKYo7hsKGfWplR5GKvFCO5Ke3bOLTuFg== X-Received: by 2002:a17:902:f681:b0:206:a935:2f8 with SMTP id d9443c01a7336-2074c4afdfemr54290225ad.2.1726052995441; Wed, 11 Sep 2024 04:09:55 -0700 (PDT) Received: from YAMABUKI (pl934.ag1212.nttpc.ne.jp. [61.197.25.166]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20710eeab5bsm61360925ad.180.2024.09.11.04.09.54 for <bug-gnu-emacs@HIDDEN> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Sep 2024 04:09:54 -0700 (PDT) From: AKIYAMA Kouhei <misohena@HIDDEN> To: bug-gnu-emacs@HIDDEN Subject: 29.4; Unable to retrieve Exif data from some JPEG files Date: Wed, 11 Sep 2024 20:09:40 +0900 Message-ID: <86plpaphu3.fsf@HIDDEN> MIME-Version: 1.0 Content-Type: text/plain Received-SPF: pass client-ip=2607:f8b0:4864:20::62d; envelope-from=misohena@HIDDEN; helo=mail-pl1-x62d.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Spam-Score: -1.3 (-) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Wed, 11 Sep 2024 08:32:35 -0400 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -2.3 (--) exif.el does not correctly read the Exif data from some JPEG files, which means that for example image rotation does not work properly in image-mode. * Issue 1: Unable to retrieve values such as orientation from Exif data written in Big-endian format. Reproduction steps 1: (The following command line creates test images using exiftool) wget https://www.gnu.org/graphics/gnu-head.jpg exiftool -Orientation#=6 -ExifByteOrder=Little-endian gnu-head.jpg -o gnu-head-le.jpg exiftool -Orientation#=6 -ExifByteOrder=Big-endian gnu-head.jpg -o gnu-head-be.jpg emacs --batch --eval "(progn (require 'exif) (princ (exif-orientation (exif-parse-file \"gnu-head-le.jpg\"))))" # => 90 emacs --batch --eval "(progn (require 'exif) (princ (exif-orientation (exif-parse-file \"gnu-head-be.jpg\"))))" # => nil (expected: 90) Alternatively, the following expressions can be evaluated within Emacs: (exif-orientation (exif-parse-file "gnu-head-le.jpg")) ;; => 90 (exif-orientation (exif-parse-file "gnu-head-be.jpg")) ;; => nil (expected: 90) If you view gnu-head-be.jpg in image-mode, the image will not be rotated. If you view it in an image viewer app or web browser, it will be rotated correctly. Related source code location 1: (In exif.el) (defun exif--parse-directory (le) ... for value = (exif--read-number 4 le) For small field types, 4 bytes is too large. (This is unrelated to the current issue, but if this part could read triplet rational numbers such as latitude and longitude information, the range of applications would be expanded. Currently, it can read rational numbers, but it cannot read multiple values.) * Issue 2: An error may occur depending on the order when non-Exif APP1 segments exist in the file. Reproduction steps 2-1: (When there is no Exif data and only XMP is embedded) exiftool -xmp:creator="Etienne Suvasa" gnu-head.jpg -o gnu-head-xmp.jpg emacs --batch --eval "(progn (require 'exif) (princ (exif-orientation (exif-parse-file \"gnu-head-xmp.jpg\"))))" # => Invalid Exif data (expected: 0) Reproduction steps 2-2: (When XMP appears before Exif) wget https://misohena.jp/work/emacs-exif-test/20220629_072635771_cw.jpg emacs --batch --eval "(progn (require 'exif) (princ (exif-orientation (exif-parse-file \"20220629_072635771_cw.jpg\"))))" # => Invalid Exif data (expected: 90) I'm not sure if JPEG files with XMP preceding Exif data conform to the standard, but such files do exist in practice. Currently, I have not found a way to generate such a JPEG file in my environment. It may be a problem with the image conversion software I used in the past. Related source code location 2: (In exif.el) (defun exif-parse-buffer (&optional buffer) ... (when-let ((app1 (cdr (assq #xffe1 (exif--parse-jpeg))))) (exif--parse-exif-chunk app1)) Only the first APP1 segment found will be used, any subsequent APP1 segments (including Exif) will be ignored. ------ In GNU Emacs 29.4 (build 2, x86_64-w64-mingw32) of 2024-07-05 built on AVALON Windowing system distributor 'Microsoft Corp.', version 10.0.19045 System Description: Microsoft Windows 10 Enterprise (v10.0.2009.19045.4780) Configured using: 'configure --with-modules --without-dbus --with-native-compilation=aot --without-compress-install --with-sqlite3 --with-tree-sitter CFLAGS=-O2' Configured features: ACL GIF GMP GNUTLS HARFBUZZ JPEG JSON LCMS2 LIBXML2 MODULES NATIVE_COMP NOTIFY W32NOTIFY PDUMPER PNG RSVG SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP XPM ZLIB Important settings: value of $LANG: ja_JP.CP932 locale-coding-system: cp932 Major mode: Lisp Interaction Minor modes in effect: tooltip-mode: t global-eldoc-mode: t eldoc-mode: t show-paren-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t line-number-mode: t indent-tabs-mode: t transient-mark-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message mailcap yank-media puny dired dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068 epg-config gnus-util text-property-search time-date mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail comp comp-cstr warnings icons subr-x rx cl-seq cl-macs gv cl-extra help-mode cl-loaddefs cl-lib bytecomp byte-compile rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils japan-util rmc iso-transl tooltip cconv eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel dos-w32 ls-lisp disp-table term/w32-win w32-win w32-vars term/common-win tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer nadvice seq simple cl-generic indonesian philippine cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget keymap hashtable-print-readable backquote threads w32notify w32 lcms2 multi-tty make-network-process native-compile emacs) Memory information: ((conses 16 85672 6348) (symbols 48 8061 0) (strings 32 22174 4610) (string-bytes 1 623953) (vectors 16 17387) (vector-slots 8 439453 10338) (floats 8 29 33) (intervals 56 1089 769) (buffers 984 12)) -- # This report was created using machine translation. AKIYAMA Kouhei misohena@HIDDEN
AKIYAMA Kouhei <misohena@HIDDEN>
:bug-gnu-emacs@HIDDEN
.
Full text available.bug-gnu-emacs@HIDDEN
:bug#73177
; Package emacs
.
Full text available.
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997 nCipher Corporation Ltd,
1994-97 Ian Jackson.