Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdelibs@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 269 insertions, 0 deletions

diff --git a/arts/kde/kaudiorecordstream.cpp b/arts/kde/kaudiorecordstream.cpp
new file mode 100644
index 000000000..53788e296
--- /dev/null
+++ b/arts/kde/kaudiorecordstream.cpp
@@ -0,0 +1,269 @@
+    /*
+
+    Copyright (C) 2001, 2002 Matthias Kretz
+                            kretz@kde.org
+                  2003       Arnold Krille
+                             arnold@arnoldarts.de
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+  
+    This library 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
+    Library 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.
+
+    */
+
+#include "kaudiorecordstream.h"
+#include "kaudiorecordstream_p.h"
+#include "kartsserver.h"
+
+#include <artsflow.h>
+#include <soundserver.h>
+
+#include <kglobal.h>
+#include <kdebug.h>
+
+#include <qstring.h>
+#include <qptrqueue.h>
+#include <qcstring.h> //QByteArray
+
+#include <assert.h>
+
+struct KAudioRecordStream::Data
+{
+	Arts::Synth_AMAN_RECORD in;
+	Arts::AudioToByteStream convert;
+	Arts::StereoEffectStack effectStack;
+	Arts::ByteSoundReceiver receiver;
+	KByteSoundReceiver * receiver_base;
+	KArtsServer * kserver;
+	bool attached;
+	bool blocking;
+	bool polling;
+	unsigned int pos;
+	QPtrQueue<QByteArray> inqueue;
+	QString title;
+};
+
+KAudioRecordStream::KAudioRecordStream( KArtsServer * kserver, const QString & title, QObject * parent, const char * name )
+	: QObject( parent, name )
+	, d( new Data )
+{
+	d->kserver = kserver;
+	d->attached = false;
+	d->blocking = true;
+	d->polling = false;
+	d->pos = 0;
+	d->inqueue.setAutoDelete( true );
+	d->title = title;
+
+	connect( d->kserver, SIGNAL( restartedServer() ), SLOT( slotRestartedServer() ) );
+
+	d->in = Arts::DynamicCast( d->kserver->server().createObject( "Arts::Synth_AMAN_RECORD" ) );
+	d->effectStack = Arts::DynamicCast( d->kserver->server().createObject( "Arts::StereoEffectStack" ) );
+	d->convert = Arts::DynamicCast( d->kserver->server().createObject( "Arts::AudioToByteStream" ) );
+	if( d->in.isNull() )
+		kdFatal( 400 ) << "couldn't create a Synth_AMAN_RECORD on the aRts server\n";
+	if( d->effectStack.isNull() )
+		kdFatal( 400 ) << "couldn't create a StereoEffectStack on the aRts server\n";
+	if( d->convert.isNull() )
+		kdFatal( 400 ) << "couldn't create a AudioToByteStream on the aRts server\n";
+
+	d->in.title( ( const char * ) d->title.local8Bit() );
+	Arts::connect( d->in, d->effectStack );
+	d->in.start();
+	d->effectStack.start();
+}
+
+KAudioRecordStream::~KAudioRecordStream()
+{
+	d->receiver = Arts::ByteSoundReceiver::null();
+	// don't delete receiver_base because aRts takes care of that (in the line
+	// above)
+	d->receiver_base = 0;
+	delete d;
+}
+
+int KAudioRecordStream::read( char * buffer, int size )
+{
+	kdDebug( 400 ) << k_funcinfo << endl;
+	unsigned int remaining = size;
+	while( remaining )
+	{
+		if( d->blocking )
+			while( d->inqueue.isEmpty() )
+				Arts::Dispatcher::the()->ioManager()->processOneEvent( true );
+		else
+		{
+			if( d->inqueue.isEmpty() )
+				Arts::Dispatcher::the()->ioManager()->processOneEvent( false );
+			if( d->inqueue.isEmpty() )
+				return size - remaining;
+		}
+		QByteArray * data = d->inqueue.head();
+		unsigned int tocopy = kMin( remaining, data->size() - d->pos );
+		memcpy( buffer, data->data() + d->pos, tocopy );
+		d->pos += tocopy;
+		buffer += tocopy;
+		remaining -= tocopy;
+		if( d->pos == data->size() )
+		{
+			d->inqueue.remove();
+			d->pos = 0;
+		}
+	}
+	return size;
+}
+
+void KAudioRecordStream::setBlockingIO( bool blocking )
+{
+	d->blocking = blocking;
+}
+
+bool KAudioRecordStream::blockingIO() const
+{
+	return d->blocking;
+}
+
+void KAudioRecordStream::usePolling( bool polling )
+{
+	d->polling = polling;
+	if( ! polling )
+		flush();
+}
+
+bool KAudioRecordStream::polling() const
+{
+	return d->polling;
+}
+
+Arts::StereoEffectStack KAudioRecordStream::effectStack() const
+{
+	return d->effectStack;
+}
+
+bool KAudioRecordStream::running() const
+{
+	return d->attached;
+}
+
+void KAudioRecordStream::stop()
+{
+	kdDebug( 400 ) << k_funcinfo << endl;
+	if( d->attached )
+	{
+		d->receiver.stop();
+		d->convert.stop();
+
+		Arts::disconnect( d->convert, d->receiver );
+		d->receiver = Arts::ByteSoundReceiver::null();
+		d->receiver_base = 0;
+
+		Arts::disconnect( d->effectStack, d->convert );
+
+		d->attached = false;
+		emit running( false );
+	}
+}
+
+void KAudioRecordStream::start( int samplingRate, int bits, int channels )
+{
+	kdDebug( 400 ) << k_funcinfo << "samplingRate: " << samplingRate << " bits: " << bits << " channels: " << channels << endl;
+	if( ! d->attached )
+	{
+		assert( d->kserver );
+
+		if( ( samplingRate < 500 || samplingRate > 2000000 )
+				|| ( channels != 1 && channels != 2 ) || ( bits != 8 && bits != 16 ) )
+		{
+			kdWarning( 400 ) << "invalid stream parameters: rate=" << samplingRate << ", " << bits << " bit, " << channels << " channels\n";
+		}
+		else
+		{
+			d->convert.samplingRate( samplingRate );
+			d->convert.channels( channels );
+			d->convert.bits( bits );
+			Arts::connect( d->effectStack, d->convert );
+
+			d->receiver_base = new KByteSoundReceiver( samplingRate, bits, channels, d->title.local8Bit() );
+			d->receiver = Arts::ByteSoundReceiver::_from_base( d->receiver_base );
+			connect( d->receiver_base, SIGNAL( data( const char *, unsigned int ) ),
+					SLOT( slotData( const char *, unsigned int ) ) );
+			Arts::connect( d->convert, "outdata", d->receiver, "indata" );
+
+			d->convert.start();
+			d->receiver.start();
+
+			//### needed?
+			Arts::Dispatcher::the()->ioManager()->processOneEvent( false );
+			d->attached = true;
+			emit running( true );
+		}
+	}
+}
+
+void KAudioRecordStream::flush()
+{
+	kdDebug( 400 ) << k_funcinfo << endl;
+	d->inqueue.clear();
+}
+
+void KAudioRecordStream::slotRestartedServer() { }
+
+void KAudioRecordStream::slotData( const char * contents, unsigned int size )
+{
+	//kdDebug( 400 ) << k_funcinfo << endl;
+	QByteArray * bytearray = new QByteArray( size );
+	// copy the contents to the bytearray
+	// this has to be deleted later
+	bytearray->duplicate( contents, size );
+	if( d->polling )
+	{
+		kdDebug( 400 ) << "enqueue the data\n";
+		d->inqueue.enqueue( bytearray );
+	}
+	else
+	{
+		//kdDebug( 400 ) << "emit the data\n";
+		emit data( *bytearray );
+		//kdDebug( 400 ) << "delete the data\n";
+		delete bytearray;
+	}
+}
+
+////////////////////////////////////////
+// ---*--- KByteSoundReceiver ---*--- //
+////////////////////////////////////////
+
+KByteSoundReceiver::KByteSoundReceiver( int rate, int bits, int channels, const char * title )
+	: _samplingRate( rate )
+	, _bits( bits )
+	, _channels( channels )
+	, _title( title )
+{
+}
+
+KByteSoundReceiver::~KByteSoundReceiver()
+{
+}
+
+void KByteSoundReceiver::process_indata( Arts::DataPacket<Arts::mcopbyte> * inpacket )
+{
+	//kdDebug( 400 ) << k_funcinfo << " size of the packet: " << inpacket->size << endl;
+	emit data( (char *)inpacket->contents, inpacket->size );
+	inpacket->processed();
+}
+
+// vim:sw=4:ts=4
+
+#include "kaudiorecordstream.moc"
+#include "kaudiorecordstream_p.moc"