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/*
Copyright (C) 2005 by Olivier Goffart
ogoffart@kde.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.
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 Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifdef HAVE_ARTS
#include "soundrecorder_arts.h"
#include <arts/kaudiorecordstream.h>
#include <arts/kartsserver.h>
#include <arts/kartsdispatcher.h>
#include <kdebug.h>
#include <klocale.h>
#include <qtimer.h>
#define FS 11025
#define BITS 16
#define ABS(X) ( ((X)>0) ? (X) : -(X) )
extern "C"
KDE_EXPORT
KHotKeys::SoundRecorder* khotkeys_soundrecorder_create( QObject* parent, const char* name )
{
return new KHotKeys::SoundRecorderArts( parent, name );
}
namespace KHotKeys
{
SoundRecorderArts::SoundRecorderArts(QObject *parent, const char *name)
: SoundRecorder(parent, name) ,
m_dis(new KArtsDispatcher( this) ),
m_server( new KArtsServer( this ) ) ,
m_recStream( new KAudioRecordStream( m_server, i18n("khotkeys"), m_server ) )
{
create_ptr check = khotkeys_soundrecorder_create; // check the type matches
( void ) check;
m_recStream->usePolling( false );
connect( m_recStream, SIGNAL(data (QByteArray &)), this, SLOT(slotDataReceived(QByteArray& )));
}
SoundRecorderArts::~SoundRecorderArts()
{
delete m_recStream;
delete m_server;
delete m_dis;
}
void SoundRecorderArts::start()
{
m_recStream->start(FS,BITS,2);
m_data.resize(0);
}
void SoundRecorderArts::stop()
{
m_recStream->stop();
QTimer::singleShot(400,this,SLOT(slotEmitSignal()));
}
void SoundRecorderArts::abort()
{
m_recStream->stop();
m_data.resize(0);
}
Sound SoundRecorderArts::sound()
{
Sound s;
uint BytePS=BITS/8;
uint length=m_data.size()/BytePS;
QMemArray<Q_INT32> da(length);
s.max=0;
s._fs=FS;
for(uint f=0;f<length; f++)
{
#if BITS==8
int nb=(unsigned char)(m_data[f]) -128;
#elif BITS==16
int nb=(m_data[2*f] &0x000000FF ) | ( (m_data[2*f+1] &0x000000FF ) << 8 ) ;
if(nb & (1<< 15))
nb = nb-(1<<16);
#else
#error BITS is not 16 or 8
#endif
if(s.max < (uint)ABS(nb))
{
s.max= (uint)ABS(nb);
}
da[f]=nb;
}
s.data=da;
return s;
}
void SoundRecorderArts::slotDataReceived(QByteArray & data)
{
uint pos=m_data.size();
m_data.resize(pos + data.size());
for(uint f=0;f<data.size(); f++)
{
m_data[pos+f]=data[f];
}
}
void SoundRecorderArts::slotEmitSignal()
{
emit recorded( sound() );
}
}
#include "soundrecorder_arts.moc"
#endif
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