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126 lines
3.3 KiB
126 lines
3.3 KiB
/* This file is part of the KDE project
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Copyright (C) 2003 Arnold Krille <arnold@arnoldarts.de>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#ifndef KAUDIOPLAYSTREAM_H
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#define KAUDIOPLAYSTREAM_H
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#include <tqobject.h>
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#include <tqcstring.h>
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#include <stdsynthmodule.h>
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#include <tdelibs_export.h>
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class KArtsServer;
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namespace Arts { class StereoEffectStack; }
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class KAudioPlayStreamPrivate;
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/**
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* @brief A wrapper around ByteSoundProducer/ByteStreamToAudio/Synth_AMAN_PLAY.
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*
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* @author Arnold Krille <arnold@arnoldarts.de>
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* @since 3.2
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*/
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class KDE_ARTS_EXPORT KAudioPlayStream : public TQObject {
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Q_OBJECT
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public:
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/**
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* Creates a KAudioPlayStream on server with a title. You should pass the KArtsServer also
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* as parent to be sure this object is deleted before the server is.
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*
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* @param server The server where it should play to.
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* @param title The title that is shown in the AudioManager.
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* @param parent You will propably want to pass the server as parent to so this stream gets deleted before the server disappears.
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* @param name The name of the stream.
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*/
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KAudioPlayStream( KArtsServer* server, const TQString title, TQObject* parent=0, const char* name=0 );
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/**
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* Destructs the KAudioPlayStream.
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*/
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~KAudioPlayStream();
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/**
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* Controls wether this Stream should poll the data from you via the signal requestData()
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* or you use write() to fill the inputbuffer.
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*
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* Default is true
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*/
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void setPolling( bool );
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/**
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* Returns the polling state.
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* @see setPolling
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*/
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bool polling() const;
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/**
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* @return wether this stream is running ("on air") or not.
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*/
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bool running() const;
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/**
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* @return The Arts::StereoEffectStack right before the Synth_AMAN_PLAY.
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*/
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Arts::StereoEffectStack effectStack() const;
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public slots:
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/**
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* Start the stream.
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* @param samplingRate how many samples per second ( typically 11000/22050/44100/48000 )
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* @param bits how many bits per sample ( 8 / 16 )
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* @param channels how many channels ( 1 or 2 )
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*/
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void start( int samplingRate, int bits, int channels );
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/**
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* Stops the stream.
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*/
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void stop();
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/**
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* Write data into the inputbuffer.
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* If you ignore the signal noData() it will play 0 ( silence ).
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*/
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void write( TQByteArray& data );
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signals:
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/**
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* This signal is emitted when audio should be played.
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* You have to fill the array with data.
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*/
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void requestData( TQByteArray& );
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/**
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* Is emitted when the state changes.
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*/
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void running( bool );
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/**
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* Is emitted if the inputbuffer runs dry and polling os off.
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*/
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void noData();
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public:
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/**
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* @internal
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*/
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void fillData( Arts::DataPacket<Arts::mcopbyte> *packet );
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private:
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KAudioPlayStreamPrivate* d;
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};
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#endif // KAUDIOPLAYSTREAM_H
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