2 Copyright (C) 2000 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #ifndef __ardour_source_h__
21 #define __ardour_source_h__
26 #include <boost/utility.hpp>
27 #include <sigc++/signal.h>
28 #include "pbd/statefuldestructible.h"
30 #include "ardour/ardour.h"
31 #include "ardour/session_object.h"
32 #include "ardour/data_type.h"
33 #include "ardour/readable.h"
39 class Source : public SessionObject, public boost::noncopyable
47 RemovableIfEmpty = 0x10,
48 RemoveAtDestroy = 0x20,
53 Source (Session&, DataType type, const std::string& name, Flag flags=Flag(0));
54 Source (Session&, const XMLNode&);
58 DataType type() { return _type; }
60 time_t timestamp() const { return _timestamp; }
61 void stamp (time_t when) { _timestamp = when; }
63 virtual sframes_t length (sframes_t pos) const = 0;
64 virtual void update_length (sframes_t pos, sframes_t cnt) = 0;
66 virtual const Glib::ustring& path() const = 0;
68 virtual nframes64_t natural_position() const { return 0; }
70 void mark_for_remove();
72 virtual void mark_streaming_write_started () {}
73 virtual void mark_streaming_write_completed () = 0;
75 virtual void session_saved() {}
77 XMLNode& get_state ();
78 int set_state (const XMLNode&, int version);
80 bool destructive() const { return (_flags & Destructive); }
81 bool writable () const { return (_flags & Writable); }
82 virtual bool set_destructive (bool /*yn*/) { return false; }
83 virtual bool length_mutable() const { return false; }
85 void use () { _in_use++; }
86 void disuse () { if (_in_use) { _in_use--; } }
88 static sigc::signal<void,Source*> SourceCreated;
89 sigc::signal<void,boost::shared_ptr<Source> > Switched;
91 bool has_been_analysed() const;
92 virtual bool can_be_analysed() const { return false; }
93 virtual void set_been_analysed (bool yn);
94 virtual bool check_for_analysis_data_on_disk();
96 sigc::signal<void> AnalysisChanged;
98 AnalysisFeatureList transients;
99 std::string get_transients_path() const;
100 int load_transients (const std::string&);
102 sframes_t timeline_position() const { return _timeline_position; }
103 virtual void set_timeline_position (sframes_t pos);
105 void set_allow_remove_if_empty (bool yn);
107 Glib::Mutex& mutex() { return _lock; }
108 Flag flags() const { return _flags; }
114 sframes_t _timeline_position;
116 mutable Glib::Mutex _lock;
117 mutable Glib::Mutex _analysis_lock;
118 Glib::Mutex _playlist_lock;
122 void fix_writable_flags ();
127 #endif /* __ardour_source_h__ */