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/***************************************************************************
* Copyright (C) 2008-2009 by Ilya Kotov *
* forkotov02@hotmail.ru *
* *
* 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. *
* *
* 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include <qmmp/buffer.h>
#include <qmmp/output.h>
#include <qmmp/recycler.h>
#include <qmmp/fileinfo.h>
#include <qmmp/decoderfactory.h>
#include <qmmp/soundcore.h>
#include <QObject>
#include <QFile>
#include "cueparser.h"
#include "decoder_cue.h"
DecoderCUE::DecoderCUE(const QString &url, QIODevice *input)
: Decoder(input)
{
m_path = url;
m_decoder = 0;
}
DecoderCUE::~DecoderCUE()
{
if(m_decoder)
delete m_decoder;
m_decoder = 0;
}
bool DecoderCUE::initialize()
{
QString p = QUrl(m_path).path();
p.replace(QString(QUrl::toPercentEncoding("#")), "#");
p.replace(QString(QUrl::toPercentEncoding("%")), "%");
CUEParser parser(p);
if (parser.count() == 0)
{
qWarning("DecoderCUE: invalid cue file");
return FALSE;
}
int track = m_path.section("#", -1).toInt();
m_path = parser.filePath(track);
if (!QFile::exists(m_path))
{
qWarning("DecoderCUE: file \"%s\" doesn't exist", qPrintable(m_path));
return FALSE;
}
DecoderFactory *df = Decoder::findByPath(m_path);
if (!df)
{
qWarning("DecoderCUE: unsupported file format");
return FALSE;
}
m_length = parser.length(track);
m_offset = parser.offset(track);
m_decoder = df->create(new QFile(m_path), m_path);
if(!m_decoder->initialize())
{
qWarning("DecoderCUE: invalid audio file");
return FALSE;
}
m_decoder->seek(m_offset);
configure(m_decoder->audioParameters().sampleRate(),
m_decoder->audioParameters().channels(),
m_decoder->audioParameters().bits());
offset_in_bytes = audioParameters().sampleRate() *
audioParameters().channels() *
audioParameters().bits() * m_length/8000;
m_totalBytes = 0;
return TRUE;
}
qint64 DecoderCUE::totalTime()
{
return m_decoder ? m_length : 0;
}
void DecoderCUE::seek(qint64 pos)
{
m_decoder->seek(m_offset + pos);
m_totalBytes = audioParameters().sampleRate() *
audioParameters().channels() *
audioParameters().bits() * pos/8000;
}
qint64 DecoderCUE::read(char *data, qint64 size)
{
qint64 len = m_decoder->read(data, size);
m_totalBytes += len;
if(len > offset_in_bytes - m_totalBytes)
{
len = offset_in_bytes - m_totalBytes;
int sample_size = audioParameters().bits() * audioParameters().channels()/8;
len = (len / sample_size) * sample_size;
}
if(len < 0)
len = 0;
return len;
}
int DecoderCUE::bitrate()
{
return m_decoder->bitrate();
}
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