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k3b/libk3bdevice/k3bmsf.cpp

336 lines
5.8 KiB

/*
*
* $Id: k3bmsf.cpp 619556 2007-01-03 17:38:12Z trueg $
* Copyright (C) 2003-2007 Sebastian Trueg <trueg@k3b.org>
*
* This file is part of the K3b project.
* Copyright (C) 1998-2007 Sebastian Trueg <trueg@k3b.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* See the file "COPYING" for the exact licensing terms.
*/
#include "k3bmsf.h"
#include <tqregexp.h>
#include <math.h>
K3b::Msf::Msf()
: m_minutes(0),
m_seconds(0),
m_frames(0)
{
}
K3b::Msf::Msf( const K3b::Msf& m )
: m_minutes(m.minutes()),
m_seconds(m.seconds()),
m_frames(m.frames())
{
}
K3b::Msf::Msf( int m, int s, int f )
: m_minutes(m),
m_seconds(s),
m_frames(f)
{
makeValid();
}
K3b::Msf::Msf( int i )
: m_minutes(0),
m_seconds(0),
m_frames(i)
{
makeValid();
}
void K3b::Msf::setValue( int m, int s, int f )
{
m_minutes = m;
m_seconds = s;
m_frames = f;
makeValid();
}
void K3b::Msf::addMinutes( int m )
{
m_minutes += m;
makeValid();
}
void K3b::Msf::addSeconds( int s )
{
m_seconds += s;
makeValid();
}
void K3b::Msf::addFrames( int f )
{
m_frames += f;
makeValid();
}
K3b::Msf& K3b::Msf::operator=( const K3b::Msf& m )
{
m_frames = m.frames();
m_seconds = m.seconds();
m_minutes = m.minutes();
return *this;
}
K3b::Msf& K3b::Msf::operator=( int i )
{
m_frames = i;
m_seconds = 0;
m_minutes = 0;
makeValid();
return *this;
}
K3b::Msf& K3b::Msf::operator+=( const K3b::Msf& m )
{
m_frames += m.frames();
m_seconds += m.seconds();
m_minutes += m.minutes();
makeValid();
return *this;
}
K3b::Msf& K3b::Msf::operator+=( int i )
{
addFrames(i);
return *this;
}
K3b::Msf& K3b::Msf::operator-=( const K3b::Msf& m )
{
m_frames -= m.frames();
m_seconds -= m.seconds();
m_minutes -= m.minutes();
makeValid();
return *this;
}
K3b::Msf& K3b::Msf::operator-=( int i )
{
m_frames -= i;
makeValid();
return *this;
}
const K3b::Msf K3b::Msf::operator++( int )
{
Msf old = *this;
++(*this);
return old;
}
K3b::Msf& K3b::Msf::operator++()
{
(*this) += 1;
return *this;
}
const K3b::Msf K3b::Msf::operator--( int )
{
Msf old = *this;
--(*this);
return old;
}
K3b::Msf& K3b::Msf::operator--()
{
(*this) -= 1;
return *this;
}
TQString K3b::Msf::toString( bool showFrames ) const
{
TQString str;
if( showFrames )
str.sprintf( "%.2i:%.2i:%.2i", m_minutes, m_seconds, m_frames );
else
str.sprintf( "%.2i:%.2i", m_minutes, m_seconds );
return str;
}
KIO::filesize_t K3b::Msf::mode1Bytes() const
{
return (KIO::filesize_t)2048 * ( (KIO::filesize_t)lba() );
}
KIO::filesize_t K3b::Msf::mode2Form1Bytes() const
{
return (KIO::filesize_t)2048 * ( (KIO::filesize_t)lba() );
}
KIO::filesize_t K3b::Msf::mode2Form2Bytes() const
{
return (KIO::filesize_t)2324 * ( (KIO::filesize_t)lba() );
}
KIO::filesize_t K3b::Msf::audioBytes() const
{
return (KIO::filesize_t)2352 * ( (KIO::filesize_t)lba() );
}
KIO::filesize_t K3b::Msf::rawBytes() const
{
return (KIO::filesize_t)2448 * ( (KIO::filesize_t)lba() );
}
void K3b::Msf::makeValid()
{
if( m_frames < 0 ) {
int newFrames = m_frames/-75 + 1;
m_seconds -= newFrames;
m_frames += 75*newFrames;
}
m_seconds += m_frames/75;
m_frames = m_frames % 75;
if( m_seconds < 0 ) {
int newSecs = m_seconds/-60 + 1;
m_minutes -= newSecs;
m_seconds += 60*newSecs;
}
m_minutes += m_seconds/60;
m_seconds = m_seconds % 60;
if( m_minutes < 0 ) {
m_minutes = 0;
m_seconds = 0;
m_frames = 0;
}
}
TQRegExp K3b::Msf::regExp()
{
//
// An MSF can have the following formats:
// 100 (treated as frames)
// 100:23 (minutes:seconds)
// 100:23:72 (minutes:seconds:frames)
// 100:23.72 (minutes:seconds.frames)
//
static TQRegExp rx( "(\\d+)(?::([0-5]?\\d)(?:[:\\.]((?:[0-6]?\\d)|(?:7[0-4])))?)?" );
return rx;
}
K3b::Msf K3b::Msf::fromSeconds( double ms )
{
return K3b::Msf( static_cast<int>( ::ceil(ms*75.0) ) );
}
K3b::Msf K3b::Msf::fromString( const TQString& s, bool* ok )
{
TQRegExp rx = regExp();
K3b::Msf msf;
if( rx.exactMatch( s ) ) {
//
// first number - cap(1)
// second number - cap(2)
// third number - cap(3)
//
if( rx.cap(2).isEmpty() ) {
msf.m_frames = rx.cap(1).toInt();
}
else {
msf.m_minutes = rx.cap(1).toInt();
msf.m_seconds = rx.cap(2).toInt();
msf.m_frames = rx.cap(3).toInt();
}
if( ok )
*ok = true;
}
else if( ok )
*ok = false;
msf.makeValid();
return msf;
}
K3b::Msf K3b::operator+( const K3b::Msf& m1, const K3b::Msf& m2 )
{
K3b::Msf msf(m1);
return msf += m2;
}
K3b::Msf K3b::operator+( const K3b::Msf& m, int i )
{
K3b::Msf msf(m);
return msf += i;
}
K3b::Msf K3b::operator-( const K3b::Msf& m1, const K3b::Msf& m2 )
{
K3b::Msf msf(m1);
return msf -= m2;
}
K3b::Msf K3b::operator-( const K3b::Msf& m, int i )
{
K3b::Msf msf(m);
return msf -= i;
}
bool K3b::operator==( const K3b::Msf& m1, const K3b::Msf& m2 )
{
return ( m1.minutes() == m2.minutes() &&
m1.seconds() == m2.seconds() &&
m1.frames() == m2.frames() );
}
bool K3b::operator!=( const K3b::Msf& m1, const K3b::Msf& m2 )
{
return !operator==( m1, m2 );
}
bool K3b::operator<( const K3b::Msf& m1, const K3b::Msf& m2 )
{
return ( m1.lba() < m2.lba() );
}
bool K3b::operator>( const K3b::Msf& m1, const K3b::Msf& m2 )
{
return ( m1.lba() > m2.lba() );
}
bool K3b::operator<=( const K3b::Msf& m1, const K3b::Msf& m2 )
{
return ( m1.lba() <= m2.lba() );
}
bool K3b::operator>=( const K3b::Msf& m1, const K3b::Msf& m2 )
{
return ( m1.lba() >= m2.lba() );
}
kdbgstream& K3b::operator<<( kdbgstream& s, const Msf& m )
{
return s << m.toString();
}