Problem using TagLib::FileRef under Windows with exotic filename

[Tanguy Krotoff]

Ok I found the solution to this problem under Windows.
I've checked Amarok source code (CollectionScanner.cpp)
Here the code:

#ifdef Q_OS_WIN
	const wchar_t * encodedName = reinterpret_cast<const wchar_t
*>(filename.utf16());
#else
	const char * encodedName = QFile::encodeName(filename).constData();
#endif

	TagLib::FileRef fileRef(encodedName);


Now a filename like "La première pierre.mp3" is properly read

(Becareful with /Zc:wchar_t- under MSVC, it can give you an unresolved symbol)

On Thu, Nov 27, 2008 at 9:36 PM, Tanguy Krotoff <tkrotoff at gmail.com> wrote:
> Did you try this macro ?
>
> /** Converts a Qt4 QString to a TagLib::String. */
> #define Qt4QStringToTString(s) TagLib::String(s.toUtf8().data(),
> TagLib::String::UTF8)
> there is also the TStringToQString macro
>
> Use of these macros:
> TagLib::String str(Qt4QStringToTString(fileName));
> TagLib::FileRef fileRef(str.toCString());
>
> TagLib::Tag * tag = fileRef.tag();
> if (tag) {
>        if (!tag->isEmpty()) {
>                _title = TStringToQString(tag->title()).trimmed();
>                ...
>
>
> I think it is the "official" way to deal with UTF8, TagLib and Qt4
> (I found theses macros somewhere inside TagLib source code)
>
> On Thu, Nov 27, 2008 at 5:37 PM, Joel Lopes Da Silva
> <joel at lopes-da-silva.com> wrote:
>> Hello,
>>
>> Sorry about this silly question but I tried many many things to get a
>> small C++ function to open an MP3 file with TagLib under Windows, and
>> yet, I can't get it to work with exotic filenames (such as Japanese
>> filenames).
>>
>> Here is basically what I did:
>>
>> string utf8 = "C:\\path\\to\\audioFileWithJapaneseFilename.mp3";
>> int charcount = MultiByteToWideChar(CP_UTF8, 0, utf8.c_str(), -1,
>> NULL, 0);
>> wchar_t* buf = new wchar_t[charcount];
>> MultiByteToWideChar(CP_UTF8, 0, utf8.c_str(), -1, buf, charcount);
>> TagLib::FileRef f(buf);
>>
>> I generated a Visual Studio 2008 project with Cmake and the sources of
>> TagLib, and I modified the main function of tagreader.cpp to put this
>> code within the main function (and I removed the "for" loop). And I am
>> sure my tagreader.cpp file is encoded in UTF-8.
>>
>> Under Mac OS X and Linux, my problem is already solved thanks to
>> QFile::encodeName, but I really can't get this small piece of code to
>> work under Windows. And I accept to use almost any solution: using
>> some special function of Qt, or using MultiByteToWideChar, or anything
>> else.
>>
>> Thank you very much in advance.
>>
>> --
>> Joel Lopes Da Silva
>>
>>
>>
>> _______________________________________________
>> taglib-devel mailing list
>> taglib-devel at kde.org
>> https://mail.kde.org/mailman/listinfo/taglib-devel
>>
>
>
>
> --
> Tanguy Krotoff <tkrotoff at gmail.com>
> +33 6 68 42 70 24
>



-- 
Tanguy Krotoff <tkrotoff at gmail.com>
+33 6 68 42 70 24