tomwalters@275: // Copyright 2006-2010, Willem van Engen, Thomas Walters
tomwalters@275: //
tomwalters@275: // AIM-C: A C++ implementation of the Auditory Image Model
tomwalters@275: // http://www.acousticscale.org/AIMC
tomwalters@275: //
tomwalters@275: // This program is free software: you can redistribute it and/or modify
tomwalters@275: // it under the terms of the GNU General Public License as published by
tomwalters@275: // the Free Software Foundation, either version 3 of the License, or
tomwalters@275: // (at your option) any later version.
tomwalters@275: //
tomwalters@275: // This program is distributed in the hope that it will be useful,
tomwalters@275: // but WITHOUT ANY WARRANTY; without even the implied warranty of
tomwalters@275: // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
tomwalters@275: // GNU General Public License for more details.
tomwalters@275: //
tomwalters@275: // You should have received a copy of the GNU General Public License
tomwalters@275: // along with this program.  If not, see <http://www.gnu.org/licenses/>.
tomwalters@275: 
tomwalters@275: /*! \file
tomwalters@275:  *  \brief Audio file input
tomwalters@275:  *
tomwalters@275:  *  \author Willem van Engen <cnbh@willem.engen.nl>
tomwalters@275:  *  \author Thomas Walters <tom@acousticscale.org>
tomwalters@275:  *  \date created 2006/09/21
tomwalters@275:  *  \version \$Id$
tomwalters@275:  */
tomwalters@275: 
tomwalters@275: #ifndef _AIMC_MODULES_INPUT_FILE_H_
tomwalters@275: #define _AIMC_MODULES_INPUT_FILE_H_
tomwalters@275: 
tomwalters@275: #include <sndfile.h>
tomwalters@275: 
tomwalters@275: #include "Support/Module.h"
tomwalters@275: #include "Support/Parameters.h"
tomwalters@275: #include "Support/SignalBank.h"
tomwalters@275: 
tomwalters@275: namespace aimc {
tomwalters@275: class ModuleFileInput : public Module {
tomwalters@275:  public:
tomwalters@280:   explicit ModuleFileInput(Parameters *pParam);
tomwalters@279:   virtual ~ModuleFileInput();
tomwalters@275: 
tomwalters@279:   /*! \brief Initializes this input device using an audio file
tomwalters@279:    *  \param sFilename Path of the file to load
tomwalters@279:    *  \return true on success, false on error
tomwalters@279:    */
tomwalters@279:   bool LoadFile(const char *sFilename);
tomwalters@275: 
tomwalters@280:   /*! \brief Process the loaded file.
tomwalters@280:    */
tomwalters@275:   void Process();
tomwalters@275: 
tomwalters@280:   /*! \brief Dummy Initialize function. Call LoadFile instead.
tomwalters@280:    */
tomwalters@275:   virtual bool Initialize(const SignalBank &input);
tomwalters@275: 
tomwalters@280:   /*! \brief Dummy funciton to comply with the Module specification. Gives an
tomwalters@280:    *  error message when called.
tomwalters@280:    */
tomwalters@275:   virtual void Process(const SignalBank &input);
tomwalters@275: 
tomwalters@275:  private:
tomwalters@280:   /*! \brief Prepare the module
tomwalters@280:    *  \param input Input SignalBank
tomwalters@280:    *  \param output true on success false on failure
tomwalters@280:    */
tomwalters@275:   virtual bool InitializeInternal(const SignalBank &input);
tomwalters@275: 
tomwalters@280:   /*! \brief Rewind to the start of the file
tomwalters@280:    */
tomwalters@275:   virtual void ResetInternal();
tomwalters@275: 
tomwalters@280:   /*! \brief File descriptor
tomwalters@280:    */
tomwalters@279:   SNDFILE *file_handle_;
tomwalters@275: 
tomwalters@280:   /*! \brief Current position in time of the file
tomwalters@280:    */
tomwalters@275:   int file_position_samples_;
tomwalters@275:   bool file_loaded_;
tomwalters@275:   int audio_channels_;
tomwalters@275:   int buffer_length_;
tomwalters@275:   float sample_rate_;
tomwalters@275: };
tomwalters@275: }  // namespace aimc
tomwalters@275: 
tomwalters@280: #endif  // _AIMC_MODULES_INPUT_FILE_H_