audio_track.h

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/*
    Copyright (C) 2002-2006 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_audio_track_h__
#define __ardour_audio_track_h__

#include "ardour/interthread_info.h"
#include "ardour/track.h"

namespace ARDOUR {

class Session;
class AudioDiskstream;
class AudioPlaylist;
class RouteGroup;
class AudioFileSource;

class LIBARDOUR_API AudioTrack : public Track
{
  public:
        AudioTrack (Session&, std::string name, Route::Flag f = Route::Flag (0), TrackMode m = Normal);
        ~AudioTrack ();

        int set_mode (TrackMode m);
        bool can_use_mode (TrackMode m, bool& bounce_required);

        int roll (pframes_t nframes, framepos_t start_frame, framepos_t end_frame,
                  int declick, bool& need_butler);

        boost::shared_ptr<Diskstream> create_diskstream ();
        void set_diskstream (boost::shared_ptr<Diskstream>);

        DataType data_type () const {
                return DataType::AUDIO;
        }

        void freeze_me (InterThreadInfo&);
        void unfreeze ();

        bool bounceable (boost::shared_ptr<Processor>, bool include_endpoint) const;
        boost::shared_ptr<Region> bounce (InterThreadInfo&);
        boost::shared_ptr<Region> bounce_range (framepos_t start, framepos_t end, InterThreadInfo&, 
                                                boost::shared_ptr<Processor> endpoint, bool include_endpoint);
        int export_stuff (BufferSet& bufs, framepos_t start_frame, framecnt_t nframes,
                          boost::shared_ptr<Processor> endpoint, bool include_endpoint, bool for_export, bool for_freeze);

        int set_state (const XMLNode&, int version);

        boost::shared_ptr<AudioFileSource> write_source (uint32_t n = 0);

  protected:
        boost::shared_ptr<AudioDiskstream> audio_diskstream () const;
        XMLNode& state (bool full);

  private:

        boost::shared_ptr<Diskstream> diskstream_factory (XMLNode const &);
        
        int  deprecated_use_diskstream_connections ();
        void set_state_part_two ();
        void set_state_part_three ();
};

} // namespace ARDOUR

#endif /* __ardour_audio_track_h__ */