1#!/bin/sh 2# Compares the parsed EXIF data extracted from test images with the parsed EXIF 3# data in the original images. This tests that the tag parsing and writing 4# round-trip produces an EXIF structure with the same meaning as the original. 5srcdir="${srcdir:-.}" 6TMPORIGINAL="$(mktemp)" 7TMPEXTRACTED="$(mktemp)" 8TMPDATA="$(mktemp)" 9trap 'rm -f "${TMPORIGINAL}" "${TMPEXTRACTED}" "${TMPDATA}"' 0 10 11# Remove the file name, which is a harmless difference between the two outputs. 12# Also delete the size of the MakerNote. Since the MakerNote is parsed 13# internally and rewritten, it can sometimes have slightly different padding 14# and therefore slightly different size, which is a semantically meaningless 15# difference. 16# FIXME: Not all MakerNote differences are harmless. For example, 17# olympus_makernote_variant_4.jpg has a huge size difference, probably because 18# of a parsing bug in libexif. This should be investigated. Ideally, this would 19# ignore small differences in size but trigger on larger differences. 20parse_canonicalize () { 21 sed \ 22 -e '/^File /d' \ 23 -e '/MakerNote (Undefined)$/{N;N;d}' 24} 25 26. ${srcdir}/inc-comparetool.sh 27 28# Ensure that names are untranslated 29LANG= 30LANGUAGE= 31LC_ALL=C 32export LANG LANGUAGE LC_ALL 33for fn in "${srcdir}"/testdata/*.jpg ; do 34 ./test-parse$EXEEXT "${fn}" | tr -d '\015' | parse_canonicalize > "${TMPORIGINAL}" 35 ./test-extract$EXEEXT -o "${TMPDATA}" "${fn}" 36 ./test-parse$EXEEXT "${TMPDATA}" | tr -d '\015' | parse_canonicalize > "${TMPEXTRACTED}" 37 if ${comparetool} "${TMPORIGINAL}" "${TMPEXTRACTED}"; then 38 : "no differences detected" 39 else 40 echo Error parsing "$fn" 41 exit 1 42 fi 43done 44 45for fn in "${srcdir}"/testdata/*.jpg ; do 46 ./test-parse$EXEEXT "${fn}" | tr -d '\015' | parse_canonicalize > "${TMPORIGINAL}" 47 ./test-parse-from-data$EXEEXT "${fn}" | tr -d '\015' | parse_canonicalize > "${TMPEXTRACTED}" 48 if ${comparetool} "${TMPORIGINAL}" "${TMPEXTRACTED}"; then 49 echo "no differences detected" 50 else 51 echo "ERROR: Difference between test-parse and test-parse-from-data for $fn !" 52 exit 1 53 fi 54done 55
