MultiChannelAudioFileReader.hxx

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/*
 * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)
 *                         UNIVERSITAT POMPEU FABRA
 *
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifndef MultiChannelAudioFileReader_hxx
#define MultiChannelAudioFileReader_hxx

#include "Processing.hxx"
#include "MultiChannelAudioFileReaderConfig.hxx"
#include "AudioFile.hxx"
#include "Audio.hxx"
#include "OutControl.hxx"
#include <vector>

namespace CLAM
{

        class AudioOutPort;
        
        class MultiChannelAudioFileReader : public Processing
        {
        public:
                MultiChannelAudioFileReader();
                MultiChannelAudioFileReader( const ProcessingConfig& cfg );

                ~MultiChannelAudioFileReader();

                virtual const char* GetClassName() const;
                virtual const ProcessingConfig& GetConfig() const;
                virtual bool Do();
                virtual bool Do( std::vector<Audio>& outputs );
                bool ModifiesPortsAndControlsAtConfiguration();
                const AudioFileHeader & GetHeader() const { return mAudioFile.GetHeader(); }
                const AudioTextDescriptors & GetTextDescriptors () const { return mAudioFile.GetTextDescriptors(); }
                const EAudioFileCodec GetCodec() const { return mAudioFile.GetCodec(); }
                const std::vector<TIndex> & GetSelectedChannels() const {return mSelectedChannels;}
                
                void Pause() { mIsPaused = (mIsPaused)?false:true; }; //TODO change to Qt boolean interface (pau)
        
        protected: // methods
                
                virtual bool ConcreteConfigure( const ProcessingConfig& cfgObject );
                virtual bool ConcreteStart();
                virtual bool ConcreteStop();
                
                void ResizePorts(unsigned nPorts);
                
        protected: // attributes

                typedef std::vector< AudioOutPort* >  OutputVector;
                typedef std::vector< Audio* > OutRefsVector;

                MultiChannelAudioFileReaderConfig   mConfig;
                OutputVector                        _outputs;
                FloatOutControl                     mTimeOutput;
                std::vector< TIndex >               mSelectedChannels;
                std::vector< TData* >               mSamplesMatrix;
                AudioCodecs::Stream*                mNativeStream;
                TTime                               mCurrentBeginTime;
                TTime                               mDeltaTime;
                bool                                mEOFReached;
                bool                                mIsPaused;
                AudioFileSource                     mAudioFile;
        };
}

#endif // MultiChannelAudioFileReader.hxx