Closed HaujetZhao closed 2 years ago
postscript-dev
commented
2 years ago Usually it is not necessary to supply the action but the -n enc command requires fixcom to be used. Try
exiv2 --verbose -n cp936 fixcom 文件.jpgand if this doesn't work, post the output.
Also finding a solution would be easier if you can you supply:
exiv2 --version).
HaujetZhao
commented
2 years ago exiv2 --version:
exiv2 0.27.4
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public
License along with this program; if not, write to the Free
Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301 USAD:\Users\Haujet\Desktop>chcp 936
活动代码页: 936
D:\Users\Haujet\Desktop>exiv2 --verbose -n cp936 文件.jpg
File 1/1: 文件.jpg
File name : 文件.jpg
File size : 1399039 Bytes
MIME type : image/jpeg
Image size : 4000 x 3000
Thumbnail : None
Camera make : Xiaomi
Camera model : Redmi K20 Pro
Image timestamp : 2021:10:23 20:33:29
File number :
Exposure time : 1/33 s
Aperture : F1.8
Exposure bias : 0 EV
Flash : No, compulsory
Flash bias :
Focal length : 4.8 mm
Subject distance:
ISO speed : 379
Exposure mode : Auto
Metering mode : Center weighted average
Macro mode :
Image quality :
White balance : Auto
Copyright :
Exif comment : charset=Unicode The words follows are "cp936" encoding Chinese characters: 锟斤拷f/Nk锟絅-e锟絜锟絒W
D:\Users\Haujet\Desktop>exiv2 --verbose -n cp936 fixcom 文件.jpg
File 1/1: 文件.jpg
Warning: No Windows function to map character string from cp936 to UTF-8 available.
Setting Exif UNICODE user comment to "The words follows are "cp936" encoding Chinese characters: ??f/Nk?N-e?e?[W "D:\Users\Haujet\Desktop>chcp 65001
Active code page: 65001
D:\Users\Haujet\Desktop>exiv2 --verbose -n cp936 文件.jpg
File 1/1: �ļ�.jpg
File name : �ļ�.jpg
File size : 1399311 Bytes
MIME type : image/jpeg
Image size : 4000 x 3000
Thumbnail : None
Camera make : Xiaomi
Camera model : Redmi K20 Pro
Image timestamp : 2021:10:23 20:33:29
File number :
Exposure time : 1/33 s
Aperture : F1.8
Exposure bias : 0 EV
Flash : No, compulsory
Flash bias :
Focal length : 4.8 mm
Subject distance:
ISO speed : 379
Exposure mode : Auto
Metering mode : Center weighted average
Macro mode :
Image quality :
White balance : Auto
Copyright :
Exif comment : charset=Unicode The words follows are "cp936" encoding Chinese characters: ����f/Nk��N-e��e��[W
D:\Users\Haujet\Desktop>exiv2 --verbose -n cp936 fixcom 文件.jpg
File 1/1: �ļ�.jpg
Warning: No Windows function to map character string from cp936 to UTF-8 available.
Setting Exif UNICODE user comment to "The words follows are "cp936" encoding Chinese characters: ��������f/Nk����N-e����e����[W "
D:\Users\Haujet\Desktop>exiftool -Comment -S "文件.jpg"
Comment: The words follows are "cp936" encoding Chinese characters: 这是一段中文文字
@HaujetZhao: Thanks for providing the information. I notice that you are using Exiv2 0.27.4 . Did you know that exiv2 0.27.5 is now available? You can download it here and view the release notes here.
I looked at the exiv2 source code and the Windows build (2019msvc64) doesn't use the iconv library but instead exiv2 provides a limited number of conversions internally. The following table lists those available when converting from the existing format to the target format.
| Existing format | Target format |
|---|---|
| UTF-8 | UCS-2BE |
| UTF-8 | UCS-2LE |
| UCS-2BE | UTF-8 |
| UCS-2BE | UCS-2LE |
| UCS-2LE | UTF-8 |
| UCS-2LE | UCS-2BE |
| ISO-8859-1 | UTF-8 |
| ASCII | UTF-8 |
The target format is the enc in the --encode enc command (see here).
As an aside, I also tried the same commands using exiv2 0.27.5 on the MinGW64 build:
$ exiv2 --verbose -n cp936 fixcom poc.jpg
File 1/1: poc.jpg
Warning: iconv: Illegal byte sequence (errno = 42) inbytesleft = 144
Setting Exif UNICODE user comment to "The words follows are "cp936" encoding Chinese characters: ▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒f/Nk▒▒▒▒▒▒▒▒N-e▒▒▒▒▒▒▒▒e▒▒▒▒▒▒▒▒[W "
Warning: iconv: Illegal byte sequence (errno = 42) inbytesleft = 144and the Linux build (on my Ubuntu 21.10):
$ exiv2 --verbose -n cp936 fixcom poc.jpg
File 1/1: /home/postscript-dev/Pictures/poc.jpg
Warning: iconv: Invalid or incomplete multibyte or wide character (errno = 84) inbytesleft = 144
Setting Exif UNICODE user comment to "The words follows are "cp936" encoding Chinese characters: ����������������f/Nk��������N-e��������e��������[W "
Warning: iconv: Invalid or incomplete multibyte or wide character (errno = 84) inbytesleft = 144I am unfamiliar with this part of exiv2 but don't have more time to investigate further. Sorry.
At some point, I will update the manpage to explain more about the fixcom action.
HaujetZhao
commented
2 years ago Did your Linux installed iconv?
This is the result onn my WSL Ubuntu, it has the right output:
user@Haujet-Matebook:/mnt/d/Users/Haujet/Desktop$ iconv --list
The following list contains all the coded character sets known. This does
not necessarily mean that all combinations of these names can be used for
the FROM and TO command line parameters. One coded character set can be
listed with several different names (aliases).
437, 500, 500V1, 850, 851, 852, 855, 856, 857, 858, 860, 861, 862, 863, 864,
865, 866, 866NAV, 869, 874, 904, 1026, 1046, 1047, 8859_1, 8859_2, 8859_3,
8859_4, 8859_5, 8859_6, 8859_7, 8859_8, 8859_9, 10646-1:1993,
10646-1:1993/UCS4, ANSI_X3.4-1968, ANSI_X3.4-1986, ANSI_X3.4,
ANSI_X3.110-1983, ANSI_X3.110, ARABIC, ARABIC7, ARMSCII-8, ARMSCII8, ASCII,
ASMO-708, ASMO_449, BALTIC, BIG-5, BIG-FIVE, BIG5-HKSCS, BIG5, BIG5HKSCS,
BIGFIVE, BRF, BS_4730, CA, CN-BIG5, CN-GB, CN, CP-AR, CP-GR, CP-HU, CP037,
CP038, CP273, CP274, CP275, CP278, CP280, CP281, CP282, CP284, CP285, CP290,
CP297, CP367, CP420, CP423, CP424, CP437, CP500, CP737, CP770, CP771, CP772,
CP773, CP774, CP775, CP803, CP813, CP819, CP850, CP851, CP852, CP855, CP856,
CP857, CP858, CP860, CP861, CP862, CP863, CP864, CP865, CP866, CP866NAV,
CP868, CP869, CP870, CP871, CP874, CP875, CP880, CP891, CP901, CP902, CP903,
CP904, CP905, CP912, CP915, CP916, CP918, CP920, CP921, CP922, CP930, CP932,
CP933, CP935, CP936, CP937, CP939, CP949, CP950, CP1004, CP1008, CP1025,
CP1026, CP1046, CP1047, CP1070, CP1079, CP1081, CP1084, CP1089, CP1097,
CP1112, CP1122, CP1123, CP1124, CP1125, CP1129, CP1130, CP1132, CP1133,
CP1137, CP1140, CP1141, CP1142, CP1143, CP1144, CP1145, CP1146, CP1147,
CP1148, CP1149, CP1153, CP1154, CP1155, CP1156, CP1157, CP1158, CP1160,
CP1161, CP1162, CP1163, CP1164, CP1166, CP1167, CP1250, CP1251, CP1252,
CP1253, CP1254, CP1255, CP1256, CP1257, CP1258, CP1282, CP1361, CP1364,
CP1371, CP1388, CP1390, CP1399, CP4517, CP4899, CP4909, CP4971, CP5347,
CP9030, CP9066, CP9448, CP10007, CP12712, CP16804, CPIBM861, CSA7-1, CSA7-2,
CSASCII, CSA_T500-1983, CSA_T500, CSA_Z243.4-1985-1, CSA_Z243.4-1985-2,
CSA_Z243.419851, CSA_Z243.419852, CSDECMCS, CSEBCDICATDE, CSEBCDICATDEA,
CSEBCDICCAFR, CSEBCDICDKNO, CSEBCDICDKNOA, CSEBCDICES, CSEBCDICESA,
CSEBCDICESS, CSEBCDICFISE, CSEBCDICFISEA, CSEBCDICFR, CSEBCDICIT, CSEBCDICPT,
CSEBCDICUK, CSEBCDICUS, CSEUCKR, CSEUCPKDFMTJAPANESE, CSGB2312, CSHPROMAN8,
CSIBM037, CSIBM038, CSIBM273, CSIBM274, CSIBM275, CSIBM277, CSIBM278,
CSIBM280, CSIBM281, CSIBM284, CSIBM285, CSIBM290, CSIBM297, CSIBM420,
CSIBM423, CSIBM424, CSIBM500, CSIBM803, CSIBM851, CSIBM855, CSIBM856,
CSIBM857, CSIBM860, CSIBM863, CSIBM864, CSIBM865, CSIBM866, CSIBM868,
CSIBM869, CSIBM870, CSIBM871, CSIBM880, CSIBM891, CSIBM901, CSIBM902,
CSIBM903, CSIBM904, CSIBM905, CSIBM918, CSIBM921, CSIBM922, CSIBM930,
CSIBM932, CSIBM933, CSIBM935, CSIBM937, CSIBM939, CSIBM943, CSIBM1008,
CSIBM1025, CSIBM1026, CSIBM1097, CSIBM1112, CSIBM1122, CSIBM1123, CSIBM1124,
CSIBM1129, CSIBM1130, CSIBM1132, CSIBM1133, CSIBM1137, CSIBM1140, CSIBM1141,
CSIBM1142, CSIBM1143, CSIBM1144, CSIBM1145, CSIBM1146, CSIBM1147, CSIBM1148,
CSIBM1149, CSIBM1153, CSIBM1154, CSIBM1155, CSIBM1156, CSIBM1157, CSIBM1158,
CSIBM1160, CSIBM1161, CSIBM1163, CSIBM1164, CSIBM1166, CSIBM1167, CSIBM1364,
CSIBM1371, CSIBM1388, CSIBM1390, CSIBM1399, CSIBM4517, CSIBM4899, CSIBM4909,
CSIBM4971, CSIBM5347, CSIBM9030, CSIBM9066, CSIBM9448, CSIBM12712,
CSIBM16804, CSIBM11621162, CSISO4UNITEDKINGDOM, CSISO10SWEDISH,
CSISO11SWEDISHFORNAMES, CSISO14JISC6220RO, CSISO15ITALIAN, CSISO16PORTUGESE,
CSISO17SPANISH, CSISO18GREEK7OLD, CSISO19LATINGREEK, CSISO21GERMAN,
CSISO25FRENCH, CSISO27LATINGREEK1, CSISO49INIS, CSISO50INIS8,
CSISO51INISCYRILLIC, CSISO58GB1988, CSISO60DANISHNORWEGIAN,
CSISO60NORWEGIAN1, CSISO61NORWEGIAN2, CSISO69FRENCH, CSISO84PORTUGUESE2,
CSISO85SPANISH2, CSISO86HUNGARIAN, CSISO88GREEK7, CSISO89ASMO449, CSISO90,
CSISO92JISC62991984B, CSISO99NAPLPS, CSISO103T618BIT, CSISO111ECMACYRILLIC,
CSISO121CANADIAN1, CSISO122CANADIAN2, CSISO139CSN369103, CSISO141JUSIB1002,
CSISO143IECP271, CSISO150, CSISO150GREEKCCITT, CSISO151CUBA,
CSISO153GOST1976874, CSISO646DANISH, CSISO2022CN, CSISO2022JP, CSISO2022JP2,
CSISO2022KR, CSISO2033, CSISO5427CYRILLIC, CSISO5427CYRILLIC1981,
CSISO5428GREEK, CSISO10367BOX, CSISOLATIN1, CSISOLATIN2, CSISOLATIN3,
CSISOLATIN4, CSISOLATIN5, CSISOLATIN6, CSISOLATINARABIC, CSISOLATINCYRILLIC,
CSISOLATINGREEK, CSISOLATINHEBREW, CSKOI8R, CSKSC5636, CSMACINTOSH,
CSNATSDANO, CSNATSSEFI, CSN_369103, CSPC8CODEPAGE437, CSPC775BALTIC,
CSPC850MULTILINGUAL, CSPC858MULTILINGUAL, CSPC862LATINHEBREW, CSPCP852,
CSSHIFTJIS, CSUCS4, CSUNICODE, CSWINDOWS31J, CUBA, CWI-2, CWI, CYRILLIC, DE,
DEC-MCS, DEC, DECMCS, DIN_66003, DK, DS2089, DS_2089, E13B, EBCDIC-AT-DE-A,
EBCDIC-AT-DE, EBCDIC-BE, EBCDIC-BR, EBCDIC-CA-FR, EBCDIC-CP-AR1,
EBCDIC-CP-AR2, EBCDIC-CP-BE, EBCDIC-CP-CA, EBCDIC-CP-CH, EBCDIC-CP-DK,
EBCDIC-CP-ES, EBCDIC-CP-FI, EBCDIC-CP-FR, EBCDIC-CP-GB, EBCDIC-CP-GR,
EBCDIC-CP-HE, EBCDIC-CP-IS, EBCDIC-CP-IT, EBCDIC-CP-NL, EBCDIC-CP-NO,
EBCDIC-CP-ROECE, EBCDIC-CP-SE, EBCDIC-CP-TR, EBCDIC-CP-US, EBCDIC-CP-WT,
EBCDIC-CP-YU, EBCDIC-CYRILLIC, EBCDIC-DK-NO-A, EBCDIC-DK-NO, EBCDIC-ES-A,
EBCDIC-ES-S, EBCDIC-ES, EBCDIC-FI-SE-A, EBCDIC-FI-SE, EBCDIC-FR,
EBCDIC-GREEK, EBCDIC-INT, EBCDIC-INT1, EBCDIC-IS-FRISS, EBCDIC-IT,
EBCDIC-JP-E, EBCDIC-JP-KANA, EBCDIC-PT, EBCDIC-UK, EBCDIC-US, EBCDICATDE,
EBCDICATDEA, EBCDICCAFR, EBCDICDKNO, EBCDICDKNOA, EBCDICES, EBCDICESA,
EBCDICESS, EBCDICFISE, EBCDICFISEA, EBCDICFR, EBCDICISFRISS, EBCDICIT,
EBCDICPT, EBCDICUK, EBCDICUS, ECMA-114, ECMA-118, ECMA-128, ECMA-CYRILLIC,
ECMACYRILLIC, ELOT_928, ES, ES2, EUC-CN, EUC-JISX0213, EUC-JP-MS, EUC-JP,
EUC-KR, EUC-TW, EUCCN, EUCJP-MS, EUCJP-OPEN, EUCJP-WIN, EUCJP, EUCKR, EUCTW,
FI, FR, GB, GB2312, GB13000, GB18030, GBK, GB_1988-80, GB_198880,
GEORGIAN-ACADEMY, GEORGIAN-PS, GOST_19768-74, GOST_19768, GOST_1976874,
GREEK-CCITT, GREEK, GREEK7-OLD, GREEK7, GREEK7OLD, GREEK8, GREEKCCITT,
HEBREW, HP-GREEK8, HP-ROMAN8, HP-ROMAN9, HP-THAI8, HP-TURKISH8, HPGREEK8,
HPROMAN8, HPROMAN9, HPTHAI8, HPTURKISH8, HU, IBM-803, IBM-856, IBM-901,
IBM-902, IBM-921, IBM-922, IBM-930, IBM-932, IBM-933, IBM-935, IBM-937,
IBM-939, IBM-943, IBM-1008, IBM-1025, IBM-1046, IBM-1047, IBM-1097, IBM-1112,
IBM-1122, IBM-1123, IBM-1124, IBM-1129, IBM-1130, IBM-1132, IBM-1133,
IBM-1137, IBM-1140, IBM-1141, IBM-1142, IBM-1143, IBM-1144, IBM-1145,
IBM-1146, IBM-1147, IBM-1148, IBM-1149, IBM-1153, IBM-1154, IBM-1155,
IBM-1156, IBM-1157, IBM-1158, IBM-1160, IBM-1161, IBM-1162, IBM-1163,
IBM-1164, IBM-1166, IBM-1167, IBM-1364, IBM-1371, IBM-1388, IBM-1390,
IBM-1399, IBM-4517, IBM-4899, IBM-4909, IBM-4971, IBM-5347, IBM-9030,
IBM-9066, IBM-9448, IBM-12712, IBM-16804, IBM037, IBM038, IBM256, IBM273,
IBM274, IBM275, IBM277, IBM278, IBM280, IBM281, IBM284, IBM285, IBM290,
IBM297, IBM367, IBM420, IBM423, IBM424, IBM437, IBM500, IBM775, IBM803,
IBM813, IBM819, IBM848, IBM850, IBM851, IBM852, IBM855, IBM856, IBM857,
IBM858, IBM860, IBM861, IBM862, IBM863, IBM864, IBM865, IBM866, IBM866NAV,
IBM868, IBM869, IBM870, IBM871, IBM874, IBM875, IBM880, IBM891, IBM901,
IBM902, IBM903, IBM904, IBM905, IBM912, IBM915, IBM916, IBM918, IBM920,
IBM921, IBM922, IBM930, IBM932, IBM933, IBM935, IBM937, IBM939, IBM943,
IBM1004, IBM1008, IBM1025, IBM1026, IBM1046, IBM1047, IBM1089, IBM1097,
IBM1112, IBM1122, IBM1123, IBM1124, IBM1129, IBM1130, IBM1132, IBM1133,
IBM1137, IBM1140, IBM1141, IBM1142, IBM1143, IBM1144, IBM1145, IBM1146,
IBM1147, IBM1148, IBM1149, IBM1153, IBM1154, IBM1155, IBM1156, IBM1157,
IBM1158, IBM1160, IBM1161, IBM1162, IBM1163, IBM1164, IBM1166, IBM1167,
IBM1364, IBM1371, IBM1388, IBM1390, IBM1399, IBM4517, IBM4899, IBM4909,
IBM4971, IBM5347, IBM9030, IBM9066, IBM9448, IBM12712, IBM16804, IEC_P27-1,
IEC_P271, INIS-8, INIS-CYRILLIC, INIS, INIS8, INISCYRILLIC, ISIRI-3342,
ISIRI3342, ISO-2022-CN-EXT, ISO-2022-CN, ISO-2022-JP-2, ISO-2022-JP-3,
ISO-2022-JP, ISO-2022-KR, ISO-8859-1, ISO-8859-2, ISO-8859-3, ISO-8859-4,
ISO-8859-5, ISO-8859-6, ISO-8859-7, ISO-8859-8, ISO-8859-9, ISO-8859-9E,
ISO-8859-10, ISO-8859-11, ISO-8859-13, ISO-8859-14, ISO-8859-15, ISO-8859-16,
ISO-10646, ISO-10646/UCS2, ISO-10646/UCS4, ISO-10646/UTF-8, ISO-10646/UTF8,
ISO-CELTIC, ISO-IR-4, ISO-IR-6, ISO-IR-8-1, ISO-IR-9-1, ISO-IR-10, ISO-IR-11,
ISO-IR-14, ISO-IR-15, ISO-IR-16, ISO-IR-17, ISO-IR-18, ISO-IR-19, ISO-IR-21,
ISO-IR-25, ISO-IR-27, ISO-IR-37, ISO-IR-49, ISO-IR-50, ISO-IR-51, ISO-IR-54,
ISO-IR-55, ISO-IR-57, ISO-IR-60, ISO-IR-61, ISO-IR-69, ISO-IR-84, ISO-IR-85,
ISO-IR-86, ISO-IR-88, ISO-IR-89, ISO-IR-90, ISO-IR-92, ISO-IR-98, ISO-IR-99,
ISO-IR-100, ISO-IR-101, ISO-IR-103, ISO-IR-109, ISO-IR-110, ISO-IR-111,
ISO-IR-121, ISO-IR-122, ISO-IR-126, ISO-IR-127, ISO-IR-138, ISO-IR-139,
ISO-IR-141, ISO-IR-143, ISO-IR-144, ISO-IR-148, ISO-IR-150, ISO-IR-151,
ISO-IR-153, ISO-IR-155, ISO-IR-156, ISO-IR-157, ISO-IR-166, ISO-IR-179,
ISO-IR-193, ISO-IR-197, ISO-IR-199, ISO-IR-203, ISO-IR-209, ISO-IR-226,
ISO/TR_11548-1, ISO646-CA, ISO646-CA2, ISO646-CN, ISO646-CU, ISO646-DE,
ISO646-DK, ISO646-ES, ISO646-ES2, ISO646-FI, ISO646-FR, ISO646-FR1,
ISO646-GB, ISO646-HU, ISO646-IT, ISO646-JP-OCR-B, ISO646-JP, ISO646-KR,
ISO646-NO, ISO646-NO2, ISO646-PT, ISO646-PT2, ISO646-SE, ISO646-SE2,
ISO646-US, ISO646-YU, ISO2022CN, ISO2022CNEXT, ISO2022JP, ISO2022JP2,
ISO2022KR, ISO6937, ISO8859-1, ISO8859-2, ISO8859-3, ISO8859-4, ISO8859-5,
ISO8859-6, ISO8859-7, ISO8859-8, ISO8859-9, ISO8859-9E, ISO8859-10,
ISO8859-11, ISO8859-13, ISO8859-14, ISO8859-15, ISO8859-16, ISO11548-1,
ISO88591, ISO88592, ISO88593, ISO88594, ISO88595, ISO88596, ISO88597,
ISO88598, ISO88599, ISO88599E, ISO885910, ISO885911, ISO885913, ISO885914,
ISO885915, ISO885916, ISO_646.IRV:1991, ISO_2033-1983, ISO_2033,
ISO_5427-EXT, ISO_5427, ISO_5427:1981, ISO_5427EXT, ISO_5428, ISO_5428:1980,
ISO_6937-2, ISO_6937-2:1983, ISO_6937, ISO_6937:1992, ISO_8859-1,
ISO_8859-1:1987, ISO_8859-2, ISO_8859-2:1987, ISO_8859-3, ISO_8859-3:1988,
ISO_8859-4, ISO_8859-4:1988, ISO_8859-5, ISO_8859-5:1988, ISO_8859-6,
ISO_8859-6:1987, ISO_8859-7, ISO_8859-7:1987, ISO_8859-7:2003, ISO_8859-8,
ISO_8859-8:1988, ISO_8859-9, ISO_8859-9:1989, ISO_8859-9E, ISO_8859-10,
ISO_8859-10:1992, ISO_8859-14, ISO_8859-14:1998, ISO_8859-15,
ISO_8859-15:1998, ISO_8859-16, ISO_8859-16:2001, ISO_9036, ISO_10367-BOX,
ISO_10367BOX, ISO_11548-1, ISO_69372, IT, JIS_C6220-1969-RO,
JIS_C6229-1984-B, JIS_C62201969RO, JIS_C62291984B, JOHAB, JP-OCR-B, JP, JS,
JUS_I.B1.002, KOI-7, KOI-8, KOI8-R, KOI8-RU, KOI8-T, KOI8-U, KOI8, KOI8R,
KOI8U, KSC5636, L1, L2, L3, L4, L5, L6, L7, L8, L10, LATIN-9, LATIN-GREEK-1,
LATIN-GREEK, LATIN1, LATIN2, LATIN3, LATIN4, LATIN5, LATIN6, LATIN7, LATIN8,
LATIN9, LATIN10, LATINGREEK, LATINGREEK1, MAC-CENTRALEUROPE, MAC-CYRILLIC,
MAC-IS, MAC-SAMI, MAC-UK, MAC, MACCYRILLIC, MACINTOSH, MACIS, MACUK,
MACUKRAINIAN, MIK, MS-ANSI, MS-ARAB, MS-CYRL, MS-EE, MS-GREEK, MS-HEBR,
MS-MAC-CYRILLIC, MS-TURK, MS932, MS936, MSCP949, MSCP1361, MSMACCYRILLIC,
MSZ_7795.3, MS_KANJI, NAPLPS, NATS-DANO, NATS-SEFI, NATSDANO, NATSSEFI,
NC_NC0010, NC_NC00-10, NC_NC00-10:81, NF_Z_62-010, NF_Z_62-010_(1973),
NF_Z_62-010_1973, NF_Z_62010, NF_Z_62010_1973, NO, NO2, NS_4551-1, NS_4551-2,
NS_45511, NS_45512, OS2LATIN1, OSF00010001, OSF00010002, OSF00010003,
OSF00010004, OSF00010005, OSF00010006, OSF00010007, OSF00010008, OSF00010009,
OSF0001000A, OSF00010020, OSF00010100, OSF00010101, OSF00010102, OSF00010104,
OSF00010105, OSF00010106, OSF00030010, OSF0004000A, OSF0005000A, OSF05010001,
OSF100201A4, OSF100201A8, OSF100201B5, OSF100201F4, OSF100203B5, OSF1002011C,
OSF1002011D, OSF1002035D, OSF1002035E, OSF1002035F, OSF1002036B, OSF1002037B,
OSF10010001, OSF10010004, OSF10010006, OSF10020025, OSF10020111, OSF10020115,
OSF10020116, OSF10020118, OSF10020122, OSF10020129, OSF10020352, OSF10020354,
OSF10020357, OSF10020359, OSF10020360, OSF10020364, OSF10020365, OSF10020366,
OSF10020367, OSF10020370, OSF10020387, OSF10020388, OSF10020396, OSF10020402,
OSF10020417, PT, PT2, PT154, R8, R9, RK1048, ROMAN8, ROMAN9, RUSCII, SE, SE2,
SEN_850200_B, SEN_850200_C, SHIFT-JIS, SHIFTJISX0213, SHIFT_JIS,
SHIFT_JISX0213, SJIS-OPEN, SJIS-WIN, SJIS, SS636127, STRK1048-2002,
ST_SEV_358-88, T.61-8BIT, T.61, T.618BIT, TCVN-5712, TCVN, TCVN5712-1,
TCVN5712-1:1993, THAI8, TIS-620, TIS620-0, TIS620.2529-1, TIS620.2533-0,
TIS620, TS-5881, TSCII, TURKISH8, UCS-2, UCS-2BE, UCS-2LE, UCS-4, UCS-4BE,
UCS-4LE, UCS2, UCS4, UHC, UJIS, UK, UNICODE, UNICODEBIG, UNICODELITTLE,
US-ASCII, US, UTF-7, UTF-8, UTF-16, UTF-16BE, UTF-16LE, UTF-32, UTF-32BE,
UTF-32LE, UTF7, UTF8, UTF16, UTF16BE, UTF16LE, UTF32, UTF32BE, UTF32LE,
VISCII, WCHAR_T, WIN-SAMI-2, WINBALTRIM, WINDOWS-31J, WINDOWS-874,
WINDOWS-936, WINDOWS-1250, WINDOWS-1251, WINDOWS-1252, WINDOWS-1253,
WINDOWS-1254, WINDOWS-1255, WINDOWS-1256, WINDOWS-1257, WINDOWS-1258,
WINSAMI2, WS2, YU
user@Haujet-Matebook:/mnt/d/Users/Haujet/Desktop$ exiv2 --verbose -n cp936 文件.jpg
File 1/1: 文件.jpg
File name : 文件.jpg
File size : 1399159 Bytes
MIME type : image/jpeg
Image size : 4000 x 3000
Camera make : Xiaomi
Camera model : Redmi K20 Pro
Image timestamp : 2021:10:23 20:33:29
Image number :
Exposure time : 1/33 s
Aperture : F1.8
Exposure bias : 0 EV
Flash : No, compulsory
Flash bias :
Focal length : 4.8 mm (35 mm equivalent: 26.0 mm)
Subject distance:
ISO speed : 379
Exposure mode : Auto
Metering mode : Center weighted average
Macro mode :
Image quality :
Exif Resolution : 4000 x 3000
White balance : Auto
Thumbnail : None
Copyright :
Exif comment : The words follows are "cp936" encoding Chinese characters: 这是一段中文文字
Exiv2 is built using the iconv library and uses that during execution rather than the iconv command line program. The iconv library is usually a standard part of a Linux installation.
In your above Linux example, you didn't use the fixcom action so only displayed a summary of the file. If you use exiv2 --verbose -n cp936 fixcom 文件.jpg do you get the same output as I did?
clanmills
commented
2 years ago @postscript-dev I think I might have deliberately excluded libiconv for MSVC builds. A user was complaining about a linking issue with it. He was linking the MinGW libiconv into the MSVC build. So, I neutered the 0.27-maintenance MSVC build to say "don't even think about libiconv!".
@HaujetZhao You'll understand that it's very difficult for Team Exiv2 to help you with this issue. The challenge for Peter and I is that we are native english speakers. We're not at all familiar with Code Pages and other i18n technology. Testing is extremely difficult because it requires skills which we do not possess. If you are willing to work on this, I'm sure you'll get help and support from Team Exiv2. You'll be the expert and your contribution will be appreciated.
HaujetZhao
commented
2 years ago @clanmills Thanks. I understand the difficulty of encoding issue. I'm temporarily only familiar with python, but also learning other skill stacks, preparing for postgraduate entrance exam. When my time and skill stack suits, I'll be willing to contribute to that.
clanmills
commented
2 years ago @HaujetZhao Your python skills will be of value to Team Exiv2. We wanted to recruit a python engineer to work on the test suite. https://discuss.pixls.us/t/python-engineering-volunteer-opportunity/24292
A project such as Exiv2 requires skills from many areas. While the primary code body is C++, less than 50% of the effort goes into the C++ code. Test, documentation, localisation, security, build, release engineering and other matters demand more effort. I retired from Exiv2 last month when v0.27.5 was released. I didn't write Exiv2, however I've contributed 15,000 hours over 13 years. Nobody knows everything about Exiv2. The skills of many combine into a world-class library.
Peter joined us about one year ago and overhauled the man page of the exiv2 command-line program. He is now providing end user support for the exiv2 program. Your issue about encoding concerns presenting binary data to the user of the command-line and has nothing to do with image metadata. Your knowledge and understanding of code pages is of great value. It's very likely that you and Peter can fix this together although I don't think either of you can solve it alone!
You are very welcome to join Team Exiv2.
The command i ran:
The result:
Encoding is still Unicode but not cp936.
Premise: I installed iconv for Windows: