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- /* This file is part of the KDE project
- Copyright (C) 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 version 2 as published by the Free Software Foundation.
-
- 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.
-
- */
-
- #ifndef KAUDIOPLAYSTREAM_H
- #define KAUDIOPLAYSTREAM_H
-
- #include <qobject.h>
-
- #include <qcstring.h>
- #include <stdsynthmodule.h>
-
- #include <kdelibs_export.h>
-
- class KArtsServer;
- namespace Arts { class StereoEffectStack; }
-
- class KAudioPlayStreamPrivate;
-
- /**
- * @brief A wrapper around ByteSoundProducer/ByteStreamToAudio/Synth_AMAN_PLAY.
- *
- * @author Arnold Krille <arnold@arnoldarts.de>
- * @since 3.2
- */
-
- class KDE_ARTS_EXPORT KAudioPlayStream : public QObject {
- Q_OBJECT
- public:
- /**
- * Creates a KAudioPlayStream on server with a title. You should pass the KArtsServer also
- * as parent to be sure this object is deleted before the server is.
- *
- * @param server The server where it should play to.
- * @param title The title that is shown in the AudioManager.
- * @param parent You will propably want to pass the server as parent to so this stream gets deleted before the server disappears.
- * @param name The name of the stream.
- */
- KAudioPlayStream( KArtsServer* server, const QString title, QObject* parent=0, const char* name=0 );
- /**
- * Destructs the KAudioPlayStream.
- */
- ~KAudioPlayStream();
-
- /**
- * Controls wether this Stream should poll the data from you via the signal requestData()
- * or you use write() to fill the inputbuffer.
- *
- * Default is true
- */
- void setPolling( bool );
- /**
- * Returns the polling state.
- * @see setPolling
- */
- bool polling() const;
-
- /**
- * @return wether this stream is running ("on air") or not.
- */
- bool running() const;
-
- /**
- * @return The Arts::StereoEffectStack right before the Synth_AMAN_PLAY.
- */
- Arts::StereoEffectStack effectStack() const;
- public slots:
- /**
- * Start the stream.
- * @param samplingRate how many samples per second ( typically 11000/22050/44100/48000 )
- * @param bits how many bits per sample ( 8 / 16 )
- * @param channels how many channels ( 1 or 2 )
- */
- void start( int samplingRate, int bits, int channels );
- /**
- * Stops the stream.
- */
- void stop();
-
- /**
- * Write data into the inputbuffer.
- * If you ignore the signal noData() it will play 0 ( silence ).
- */
- void write( QByteArray& data );
- signals:
- /**
- * This signal is emitted when audio should be played.
- * You have to fill the array with data.
- */
- void requestData( QByteArray& );
-
- /**
- * Is emitted when the state changes.
- */
- void running( bool );
-
- /**
- * Is emitted if the inputbuffer runs dry and polling os off.
- */
- void noData();
- public:
- /**
- * @internal
- */
- void fillData( Arts::DataPacket<Arts::mcopbyte> *packet );
- private:
- KAudioPlayStreamPrivate* d;
- };
-
- #endif // KAUDIOPLAYSTREAM_H
-
- // vim: sw=4 ts=4 tw=80
-