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/***************************************************************************
* Copyright (C) 2008-2016 by Ilya Kotov *
* forkotov02@ya.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., *
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
***************************************************************************/
#include <stdint.h>
#include "wildmidihelper.h"
#include "decoder_wildmidi.h"
// Decoder class
DecoderWildMidi::DecoderWildMidi(const QString &path) : Decoder()
{
m_path = path;
midi_ptr = 0;
m_sample_rate = 0;
}
DecoderWildMidi::~DecoderWildMidi()
{
if(midi_ptr)
{
WildMidiHelper::instance()->removePtr(midi_ptr);
WildMidi_Close(midi_ptr);
}
}
bool DecoderWildMidi::initialize()
{
m_totalTime = 0;
if(!WildMidiHelper::instance()->initialize())
{
qWarning("DecoderWildMidi: initialization failed");
return false;
}
WildMidiHelper::instance()->readSettings();
midi_ptr = WildMidi_Open (m_path.toLocal8Bit().constData());
if(!midi_ptr)
{
qWarning("DecoderWildMidi: unable to open file");
return false;
}
WildMidiHelper::instance()->addPtr(midi_ptr);
m_sample_rate = WildMidiHelper::instance()->sampleRate();
_WM_Info *wm_info = WildMidi_GetInfo(midi_ptr);
m_totalTime = (qint64)wm_info->approx_total_samples * 1000 / WildMidiHelper::instance()->sampleRate();
configure(m_sample_rate, 2, Qmmp::PCM_S16LE);
qDebug("DecoderWildMidi: initialize succes");
return true;
}
qint64 DecoderWildMidi::totalTime() const
{
return m_totalTime;
}
void DecoderWildMidi::seek(qint64 pos)
{
ulong sample = (ulong)m_sample_rate * pos / 1000;
WildMidi_FastSeek(midi_ptr, &sample);
}
int DecoderWildMidi::bitrate() const
{
return 8;
}
qint64 DecoderWildMidi::read(unsigned char *data, qint64 size)
{
#if defined(LIBWILDMIDI_VERSION) && (LIBWILDMIDI_VERSION >= 0x000400)
return WildMidi_GetOutput (midi_ptr, (int8_t *)data, size);
#else
return WildMidi_GetOutput (midi_ptr, (char *)data, size);
#endif
}
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