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/*
Copyright (C) 2010 George Kiagiadakis <kiagiadakis.george@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 as published
by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef QGST_STRUCTS_H
#define QGST_STRUCTS_H
#include "global.h"
namespace QGst {
/*! \headerfile structs.h <QGst/Fourcc>
* \brief Helper structure for accessing Fourcc values
*/
struct QTGSTREAMER_EXPORT Fourcc
{
inline Fourcc() { value.as_integer = 0; }
inline Fourcc (char first, char second, char third, char fourth)
{
value.as_integer = first | second << 8 | third << 16 | fourth << 24;
}
inline Fourcc(const char str[4])
{
value.as_integer = str[0] | str[1] << 8 | str[2] << 16 | str[3] << 24;
}
inline Fourcc(quint32 fourcc)
{
value.as_integer = fourcc;
}
union {
#if Q_BYTE_ORDER == Q_LITTLE_ENDIAN
struct {
char first;
char second;
char third;
char fourth;
} as_bytes;
#else
struct {
char fourth;
char third;
char second;
char first;
} as_bytes;
#endif
quint32 as_integer;
} value;
};
}
QGST_REGISTER_TYPE(QGst::Fourcc)
namespace QGst {
/*! \headerfile structs.h <QGst/Fraction>
* \brief Helper structure for accessing Fraction values
*/
struct QTGSTREAMER_EXPORT Fraction
{
inline Fraction() {}
inline Fraction(int numerator, int denominator)
: numerator(numerator), denominator(denominator) {}
int numerator;
int denominator;
};
}
QGST_REGISTER_TYPE(QGst::Fraction)
namespace QGst {
namespace Private {
/*! \brief Common template for IntRange, Int64Range, DoubleRange and FractionRange
* \note This structure is private and should not be used directly. You should use
* QGst::IntRange, QGst::Int64Range, QGst::DoubleRange and QGst::FractionRange instead.
*/
template <typename T>
struct Range
{
inline Range()
: start(T()), end(T()) {}
inline Range(const T & start, const T & end)
: start(start), end(end) {}
T start;
T end;
};
}
/*! \headerfile structs.h <QGst/IntRange>
* \brief Helper structure for accessing int ranges
*/
typedef Private::Range<int> IntRange;
/*! \headerfile structs.h <QGst/Int64Range>
* \brief Helper structure for accessing qint64 ranges
*/
typedef Private::Range<qint64> Int64Range;
/*! \headerfile structs.h <QGst/DoubleRange>
* \brief Helper structure for accessing double ranges
*/
typedef Private::Range<double> DoubleRange;
/*! \headerfile structs.h <QGst/FractionRange>
* \brief Helper structure for accessing fraction ranges
*/
typedef Private::Range<Fraction> FractionRange;
}
QGST_REGISTER_TYPE(QGst::IntRange)
QGST_REGISTER_TYPE(QGst::Int64Range)
QGST_REGISTER_TYPE(QGst::DoubleRange)
QGST_REGISTER_TYPE(QGst::FractionRange)
#endif // QGST_STRUCTS_H
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