tomwalters@3: // Copyright 2006-2010, Willem van Engen, Thomas Walters
tomwalters@3: //
tomwalters@3: // AIM-C: A C++ implementation of the Auditory Image Model
tomwalters@3: // http://www.acousticscale.org/AIMC
tomwalters@3: //
tomwalters@3: // This program is free software: you can redistribute it and/or modify
tomwalters@3: // it under the terms of the GNU General Public License as published by
tomwalters@3: // the Free Software Foundation, either version 3 of the License, or
tomwalters@3: // (at your option) any later version.
tomwalters@3: //
tomwalters@3: // This program is distributed in the hope that it will be useful,
tomwalters@3: // but WITHOUT ANY WARRANTY; without even the implied warranty of
tomwalters@3: // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
tomwalters@3: // GNU General Public License for more details.
tomwalters@3: //
tomwalters@3: // You should have received a copy of the GNU General Public License
tomwalters@3: // along with this program.  If not, see <http://www.gnu.org/licenses/>.
tomwalters@3: 
tomwalters@3: /*! \file
tomwalters@3:  *  \brief Audio file input
tomwalters@3:  *
tomwalters@3:  *  \author Willem van Engen <cnbh@willem.engen.nl>
tomwalters@3:  *  \author Thomas Walters <tom@acousticscale.org>
tomwalters@3:  *  \date created 2006/09/21
tomwalters@3:  *  \version \$Id$
tomwalters@3:  */
tomwalters@3: 
tomwalters@3: #ifndef _AIMC_MODULES_INPUT_FILE_H_
tomwalters@3: #define _AIMC_MODULES_INPUT_FILE_H_
tomwalters@3: 
tomwalters@3: #include <sndfile.h>
tomwalters@3: 
tomwalters@3: #include "Support/Module.h"
tomwalters@3: #include "Support/Parameters.h"
tomwalters@3: #include "Support/SignalBank.h"
tomwalters@3: 
tomwalters@3: namespace aimc {
tomwalters@3: class ModuleFileInput : public Module {
tomwalters@3:  public:
tomwalters@3: 	ModuleFileInput(Parameters *pParam);
tomwalters@3: 	virtual ~ModuleFileInput();
tomwalters@3: 
tomwalters@3: 	/*! \brief Initializes this input device using an audio file
tomwalters@3: 	 *  \param sFilename Path of the file to load
tomwalters@3: 	 *  \return true on success, false on error
tomwalters@3: 	 */
tomwalters@3: 	bool LoadFile(const char *sFilename);
tomwalters@3: 
tomwalters@3:   //! \brief Process the loaded file.
tomwalters@3:   void Process();
tomwalters@3: 
tomwalters@3:   //! \brief Dummy Initialize function. Call LoadFile instead.
tomwalters@3:   virtual bool Initialize(const SignalBank &input);
tomwalters@3: 
tomwalters@3:   //! \brief Dummy funciton to comply with the Module specification. Gives an 
tomwalters@3:   //  error message when called.
tomwalters@3:   virtual void Process(const SignalBank &input);
tomwalters@3: 
tomwalters@3:  private:
tomwalters@3:   //! \brief Prepare the module
tomwalters@3:   //! \param input Input SignalBank
tomwalters@3:   //! \param output true on success false on failure
tomwalters@3:   virtual bool InitializeInternal(const SignalBank &input);
tomwalters@3: 
tomwalters@3:   //! \brief Rewind to the start of the file
tomwalters@3:   virtual void ResetInternal();
tomwalters@3: 
tomwalters@3: 	//! \brief File descriptor
tomwalters@3: 	SNDFILE *file_handle_;
tomwalters@3: 
tomwalters@3: 	//! \brief Current position in time of the file
tomwalters@3:   int file_position_samples_;
tomwalters@3:   bool file_loaded_;
tomwalters@3:   int audio_channels_;
tomwalters@3:   int buffer_length_;
tomwalters@3:   float sample_rate_;
tomwalters@3: };
tomwalters@3: }  // namespace aimc
tomwalters@3: 
tomwalters@3: #endif // _AIMC_MODULES_INPUT_FILE_H_