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audiofilter.h

/*
    Copyright (C) 2004 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_audiofilter_h__
#define __ardour_audiofilter_h__

#include <vector>
#include <ardour/audioregion.h>

namespace ARDOUR {

class AudioRegion;
class Session;

class AudioFilter {

  public:
      AudioFilter (ARDOUR::Session& s)
            : session (s){}
      virtual ~AudioFilter() {}

      virtual int run (boost::shared_ptr<ARDOUR::AudioRegion>) = 0;
      std::vector<boost::shared_ptr<ARDOUR::AudioRegion> > results;

  protected:
      ARDOUR::Session& session;

      int make_new_sources (boost::shared_ptr<ARDOUR::AudioRegion>, ARDOUR::SourceList&, std::string suffix = "");
      int finish (boost::shared_ptr<ARDOUR::AudioRegion>, ARDOUR::SourceList&, std::string region_name = "");
};

} /* namespace */

#endif /* __ardour_audiofilter_h__ */

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