Files
taglib/taglib/tagutils.h
Urs Fleisch ca8c2e07ec Support large files over 2GB on Windows (#1089)
Backport of 4dcf0b41c6
b01f45e141
https://github.com/taglib/taglib/pull/77

Tested with files larger than 2GB which have been created using

sox -n -r 44100 -C 320 large.mp3 synth 58916 sine 440 channels 2
sox -n -r 44100 -C 0 large.flac synth 25459 sine 440 channels 2
sox -n -r 44100 -C 10 large.ogg synth 229806 sine 440 channels 2
sox -n -r 44100 large.wav synth 6692 sine 440 channels 2
ffmpeg -f lavfi -i "sine=frequency=440:duration=244676" -y large.m4a

The only file which was readable with the tagreader example
before this commit was large.ogg. The problem is that long on
Windows is only 32-bit (also in LLP64 data model of 64-bit
compilation target) and all the file offsets using long are
too small for large files. Now long is replaced by offset_t
(defined to be long long on Windows and off_t on UNIX) for such
cases and some unsigned long are now size_t, which has the
correct size even on Windows.
2023-07-09 07:01:37 +02:00

56 lines
2.3 KiB
C++

/***************************************************************************
copyright : (C) 2015 by Tsuda Kageyu
email : tsuda.kageyu@gmail.com
***************************************************************************/
/***************************************************************************
* This library is free software; you can redistribute it and/or modify *
* it under the terms of the GNU Lesser General Public License version *
* 2.1 as published by the Free Software Foundation. *
* *
* This library 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 *
* Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this library; if not, write to the Free Software *
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA *
* 02110-1301 USA *
* *
* Alternatively, this file is available under the Mozilla Public *
* License Version 1.1. You may obtain a copy of the License at *
* http://www.mozilla.org/MPL/ *
***************************************************************************/
#ifndef TAGLIB_TAGUTILS_H
#define TAGLIB_TAGUTILS_H
// THIS FILE IS NOT A PART OF THE TAGLIB API
#ifndef DO_NOT_DOCUMENT // tell Doxygen not to document this header
#include <tbytevector.h>
namespace TagLib {
class File;
class IOStream;
namespace Utils {
offset_t findID3v1(File *file);
offset_t findID3v2(File *file);
offset_t findAPE(File *file, offset_t id3v1Location);
ByteVector readHeader(IOStream *stream, unsigned int length, bool skipID3v2,
offset_t *headerOffset = 0);
} // namespace Utils
} // namespace TagLib
#endif
#endif