source_factory.h

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/*
    Copyright (C) 2000-2007 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_source_factory_h__
#define __ardour_source_factory_h__

#include <string>
#include <stdint.h>
#include <boost/shared_ptr.hpp>

#include <glibmm/threads.h>

#include "ardour/source.h"

class XMLNode;

namespace ARDOUR {

class Session;
class AudioSource;
class Playlist;

class LIBARDOUR_API SourceFactory {
  public:
        static void init ();

        static PBD::Signal1<void,boost::shared_ptr<Source> > SourceCreated;

        static boost::shared_ptr<Source> create (Session&, const XMLNode& node, bool async = false);
        static boost::shared_ptr<Source> createSilent (Session&, const XMLNode& node,
                                                       framecnt_t nframes, float sample_rate);

        static boost::shared_ptr<Source> createExternal
                (DataType type, Session&,
                 const std::string& path, 
                 int chn, Source::Flag flags, bool announce = true, bool async = false);

        static boost::shared_ptr<Source> createWritable
                (DataType type, Session&,
                 const std::string& path, 
                 bool destructive, framecnt_t rate, bool announce = true, bool async = false);


        static boost::shared_ptr<Source> createForRecovery
                (DataType type, Session&, const std::string& path, int chn);

        static boost::shared_ptr<Source> createFromPlaylist
                (DataType type, Session& s, boost::shared_ptr<Playlist> p, const PBD::ID& orig, const std::string& name,
                 uint32_t chn, frameoffset_t start, framecnt_t len, bool copy, bool defer_peaks);

        static Glib::Threads::Cond                       PeaksToBuild;
        static Glib::Threads::Mutex                      peak_building_lock;
        static std::list< boost::weak_ptr<AudioSource> > files_with_peaks;

        static int setup_peakfile (boost::shared_ptr<Source>, bool async);
};

}

#endif /* __ardour_source_factory_h__ */