asfutils.h
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/***************************************************************************
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_ASFUTILS_H
#define TAGLIB_ASFUTILS_H
// THIS FILE IS NOT A PART OF THE TAGLIB API
#ifndef DO_NOT_DOCUMENT // tell Doxygen not to document this header
namespace TagLib
{
namespace ASF
{
namespace
{
inline unsigned short readWORD(File *file, bool *ok = nullptr)
{
const ByteVector v = file->readBlock(2);
if(v.size() != 2) {
if(ok) *ok = false;
return 0;
}
if(ok) *ok = true;
return v.toUShort(false);
}
inline unsigned int readDWORD(File *file, bool *ok = nullptr)
{
const ByteVector v = file->readBlock(4);
if(v.size() != 4) {
if(ok) *ok = false;
return 0;
}
if(ok) *ok = true;
return v.toUInt(false);
}
inline long long readQWORD(File *file, bool *ok = nullptr)
{
const ByteVector v = file->readBlock(8);
if(v.size() != 8) {
if(ok) *ok = false;
return 0;
}
if(ok) *ok = true;
return v.toLongLong(false);
}
inline String readString(File *file, int length)
{
ByteVector data = file->readBlock(length);
unsigned int size = data.size();
while (size >= 2) {
if(data[size - 1] != '\0' || data[size - 2] != '\0') {
break;
}
size -= 2;
}
if(size != data.size()) {
data.resize(size);
}
return String(data, String::UTF16LE);
}
inline ByteVector renderString(const String &str, bool includeLength = false)
{
ByteVector data = str.data(String::UTF16LE) + ByteVector::fromShort(0, false);
if(includeLength) {
data = ByteVector::fromShort(static_cast<short>(data.size()), false) + data;
}
return data;
}
} // namespace
} // namespace ASF
} // namespace TagLib
#endif
#endif
TagLib::ASF::File
An implementation of TagLib::File with ASF specific methods.
Definition asffile.h:47
TagLib::ByteVector::fromShort
static ByteVector fromShort(short value, bool mostSignificantByteFirst=true)
TagLib::String::UTF16LE
@ UTF16LE
Definition tstring.h:117
TagLib::ASF
An implementation of ASF (WMA) metadata.
Definition asfattribute.h:37
TagLib
A namespace for all TagLib related classes and functions.
Definition apefile.h:41