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resampled_source.h

/*
    Copyright (C) 2007 Paul Davis 

    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., 675 Mass Ave, Cambridge, MA 02139, USA.

*/

#ifndef __ardour_resampled_source_h__
#define __ardour_resampled_source_h__

#include <samplerate.h>

#include <ardour/types.h>
#include <ardour/importable_source.h>

namespace ARDOUR {

class ResampledImportableSource : public ImportableSource 
{
  public:
      ResampledImportableSource (const std::string& path,
                  nframes_t rate, SrcQuality);

      ~ResampledImportableSource ();
      
      nframes_t read (Sample* buffer, nframes_t nframes);
            
      float ratio() const { return src_data.src_ratio; }
      
      static const uint32_t blocksize;
      
   private:
        float* input;
      SRC_STATE*  src_state;
      SRC_DATA    src_data;
};

}

#endif /* __ardour_resampled_source_h__ */

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