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mp3unicode.cpp
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mp3unicode.cpp
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/*
Copyright (c) 2005-2012 Alon Bar-Lev <alon.barlev@gmail.com>
Copyright (c) 2005-2012 Andrey Dubovik <andu@inbox.ru>
All rights reserved.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2
as published by the Free Software Foundation.
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 (see the file COPYING.GPL included with this
distribution); if not, write to the Free Software Foundation, Inc.,
59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include <stdio.h>
#include <getopt.h>
#include <fileref.h>
#include <mpegfile.h>
#include <tag.h>
#include <id3v1tag.h>
#include <id3v2tag.h>
#include <iconv.h>
#include <errno.h>
#include <cctype>
#include "messages.h"
void tolower(std::string& s) {
std::transform(s.begin(), s.end(), s.begin(), (int(*)(int))std::tolower);
}
class Converter {
protected:
bool m_id3v1;
bool m_id3v2;
bool m_src_utf8;
bool m_id3v2_utf8;
iconv_t m_cd_src;
iconv_t m_cd_id3v1;
iconv_t m_cd_id3v2;
TagLib::ID3v1::Tag *m_id3v1_tag;
TagLib::ID3v2::Tag *m_id3v2_tag;
bool m_preserve;
public:
Converter (
const std::string &src_enc,
const std::string &id3v1_enc,
const std::string &id3v2_enc,
TagLib::ID3v1::Tag *id3v1_tag,
TagLib::ID3v2::Tag *id3v2_tag,
bool preserve
) {
m_id3v1 = false;
m_id3v2 = false;
m_src_utf8 = false;
m_id3v2_utf8 = false;
m_cd_src = (iconv_t)-1;
m_cd_id3v1 = (iconv_t)-1;
m_cd_id3v2 = (iconv_t)-1;
std::string _src_enc = src_enc;
std::string _id3v2_enc = id3v2_enc;
m_id3v1_tag = id3v1_tag;
m_id3v2_tag = id3v2_tag;
m_preserve = preserve;
if (_src_enc == "unicode") {
m_src_utf8 = true;
_src_enc = "UTF-8";
}
if ((m_cd_src = iconv_open ("UTF-8", _src_enc.c_str ())) == (iconv_t)-1) {
throw msg::wrong_senc;
}
if(id3v1_enc == "unicode") {
throw msg::v1unicode;
}
if(id3v1_enc != "none") {
if ((m_cd_id3v1 = iconv_open (id3v1_enc.c_str (), "UTF-8")) == (iconv_t)-1) {
throw msg::wrong_1enc;
}
m_id3v1 = true;
}
if(_id3v2_enc != "none") {
if (_id3v2_enc == "unicode") {
_id3v2_enc = "UTF-8";
m_id3v2_utf8 = true;
}
if ((m_cd_id3v2 = iconv_open (_id3v2_enc.c_str (), "UTF-8")) == (iconv_t)-1) {
throw msg::wrong_2enc;
}
m_id3v2 = true;
}
}
~Converter () {
if (m_cd_src != (iconv_t)-1) {
iconv_close (m_cd_src);
}
if (m_cd_id3v1 != (iconv_t)-1) {
iconv_close (m_cd_id3v1);
}
if (m_cd_id3v2 != (iconv_t)-1) {
iconv_close (m_cd_id3v2);
}
}
int
Tags() {
return (
(m_id3v1 ? TagLib::MPEG::File::ID3v1 : 0) |
(m_id3v2 ? TagLib::MPEG::File::ID3v2 : 0)
);
}
void
Convert (
const TagLib::String &value,
void (TagLib::Tag::*field)(const TagLib::String &)
) {
std::string str;
if (!m_src_utf8 && m_preserve) {
if (heuristicIsUnicode (value)) {
str = value.to8Bit (true);
}
else {
str = ConvertString (m_cd_src, value.to8Bit (false));
}
}
else {
str = ConvertString (m_cd_src, value.to8Bit (m_src_utf8));
}
if (m_id3v1) {
(m_id3v1_tag->*field) (TagLib::String (ConvertString (m_cd_id3v1, str)));
}
if (m_id3v2) {
(m_id3v2_tag->*field) (
TagLib::String (
ConvertString (m_cd_id3v2, str),
m_id3v2_utf8 ? TagLib::String::UTF8 : TagLib::String::Latin1
)
);
}
}
void
printTags (
const std::string &file
) {
printf("%s\n", file.c_str());
printf("\tid3v1:\n");
if (m_id3v1) {
printf("\t\tTitle:\t\t%s\n", m_id3v1_tag->title ().to8Bit().c_str());
printf("\t\tArtist:\t\t%s\n", m_id3v1_tag->artist ().to8Bit().c_str());
printf("\t\tAlbum:\t\t%s\n", m_id3v1_tag->album ().to8Bit().c_str());
printf("\t\tComment:\t%s\n", m_id3v1_tag->comment ().to8Bit().c_str());
printf("\t\tGenre:\t\t%s\n", m_id3v1_tag->genre ().to8Bit().c_str());
}
else {
printf("\t\tempty.\n");
}
printf("\tid3v2:\n");
if (m_id3v2) {
printf("\t\tTitle:\t\t%s\n", m_id3v2_tag->title ().to8Bit(m_id3v2_utf8).c_str());
printf("\t\tArtist:\t\t%s\n", m_id3v2_tag->artist ().to8Bit(m_id3v2_utf8).c_str());
printf("\t\tAlbum:\t\t%s\n", m_id3v2_tag->album ().to8Bit(m_id3v2_utf8).c_str());
printf("\t\tComment:\t%s\n", m_id3v2_tag->comment ().to8Bit(m_id3v2_utf8).c_str());
printf("\t\tGenre:\t\t%s\n", m_id3v2_tag->genre ().to8Bit(m_id3v2_utf8).c_str());
}
else {
printf("\t\tempty.\n");
}
}
protected:
bool
heuristicIsUnicode (TagLib::String string) {
unsigned u0080 = 0;
for(TagLib::uint i = 0; i < string.size(); i++) {
if(string[i] > 255) {
return true;
}
if(string[i] > 127) {
u0080++;
}
}
if(u0080 * 2 <= string.size()) {
return true;
}
else {
return false;
}
}
std::string
ConvertString (
iconv_t cd,
std::string src
) {
const char *from;
size_t from_size;
char to_buffer[1024];
char *to;
size_t to_size;
std::string dst;
from = &*src.begin ();
from_size = src.size ();
while (from_size > 0) {
to = to_buffer;
to_size = sizeof (to_buffer);
if (
iconv (
cd,
(char **)&from,
&from_size,
&to,
&to_size
) == (size_t)-1 &&
errno != E2BIG
) {
throw msg::enc_error;
}
dst.append (to_buffer, to);
}
to = to_buffer;
to_size = sizeof (to_buffer);
if (iconv (cd, NULL, NULL, &to, &to_size) == (size_t)-1) {
throw msg::enc_error;
}
dst.append (to_buffer, to);
return dst;
}
};
int main (int argc, char *argv[]) {
try {
static struct option long_options[] = {
{ "source-encoding", required_argument, NULL, 's' },
{ "id3v1-encoding", required_argument, NULL, '1' },
{ "id3v2-encoding", required_argument, NULL, '2' },
{ "preserve-unicode", no_argument, NULL, 'p' },
{ "preview", no_argument, NULL, 'w' },
{ "version", no_argument, NULL, 'v' },
{ "help", no_argument, NULL, 'h' },
{ "quiet", no_argument, NULL, 'q' },
{ NULL, 0, NULL, 0 }
};
int long_options_ret;
std::string source_encoding;
std::string id3v1_encoding = "none";
std::string id3v2_encoding = "none";
bool preserve_unicode = false;
bool preview = false;
bool usage_ok = true;
bool verbose = true;
if(argc == 1) {
printf("%s", msg::usage);
exit(1);
}
while (
(long_options_ret = getopt_long (argc, argv, "s:1:2:pwdvhq", long_options, NULL)) != -1
) {
switch (long_options_ret) {
case 's':
source_encoding = optarg;
tolower(source_encoding);
break;
case '1':
id3v1_encoding = optarg;
tolower(id3v1_encoding);
break;
case '2':
id3v2_encoding = optarg;
tolower(id3v2_encoding);
break;
case 'p':
preserve_unicode = true;
break;
case 'w':
preview = true;
break;
case 'v':
printf("%s %s\n", PACKAGE, PACKAGE_VERSION);
printf("%s", msg::copyright);
exit (1);
break;
case 'h':
printf("%s", msg::usage);
exit(1);
case 'q':
verbose = false;
break;
default:
usage_ok = false;
break;
}
}
if (usage_ok && source_encoding.empty ()) {
printf("%s", msg::nosenc);
usage_ok = false;
}
if(optind == argc) {
printf("%s", msg::nofiles);
usage_ok = false;
}
if (!usage_ok) {
printf("%s", msg::seehelp);
exit (1);
}
TagLib::ID3v2::FrameFactory::instance()->setDefaultTextEncoding (TagLib::String::UTF8);
for (int i=optind;i<argc;i++) {
TagLib::MPEG::File mp3file(argv[i]);
if (!mp3file.isOpen ()) {
throw msg::nofile(argv[i]);
}
TagLib::Tag *tag = mp3file.tag();
if(tag->isEmpty()) {
printf("%s", msg::emptyfile(argv[i]).c_str());
}
else {
Converter converter (
source_encoding,
id3v1_encoding,
id3v2_encoding,
mp3file.ID3v1Tag (true),
mp3file.ID3v2Tag (true),
preserve_unicode
);
converter.Convert (tag->title (), &TagLib::Tag::setTitle);
converter.Convert (tag->artist (), &TagLib::Tag::setArtist);
converter.Convert (tag->album (), &TagLib::Tag::setAlbum);
converter.Convert (tag->comment (), &TagLib::Tag::setComment);
converter.Convert (tag->genre (), &TagLib::Tag::setGenre);
if (preview) {
converter.printTags(argv[i]);
}
else {
mp3file.strip(~converter.Tags());
if (!mp3file.save (converter.Tags ())) {
printf("%s", msg::writefail(argv[i]).c_str());
}
else if(verbose) {
printf("%s", msg::filedone(argv[i]).c_str());
}
}
}
}
exit (0);
}
catch (const std::string &e) {
printf ("%s", msg::error(e).c_str());
exit (1);
}
catch (const char *e) {
printf ("%s", msg::error(e).c_str());
exit (1);
}
return 1;
}