1 /*
2  * Copyright (C) 2006-2011 David Robillard <d@drobilla.net>
3  * Copyright (C) 2007-2017 Paul Davis <paul@linuxaudiosystems.com>
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License along
16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 #ifndef __ardour_source_factory_h__
21 #define __ardour_source_factory_h__
22 
23 #include <string>
24 #include <stdint.h>
25 #include <boost/shared_ptr.hpp>
26 
27 #include <glibmm/threads.h>
28 
29 #include "ardour/source.h"
30 
31 class XMLNode;
32 
33 namespace ARDOUR {
34 
35 class Session;
36 class AudioSource;
37 class Playlist;
38 
39 class LIBARDOUR_API SourceFactory {
40   public:
41 	static void init ();
42 
43 	static PBD::Signal1<void,boost::shared_ptr<Source> > SourceCreated;
44 
45 	static boost::shared_ptr<Source> create (Session&, const XMLNode& node, bool async = false);
46 	static boost::shared_ptr<Source> createSilent (Session&, const XMLNode& node,
47 	                                               samplecnt_t nframes, float sample_rate);
48 
49 	static boost::shared_ptr<Source> createExternal
50 		(DataType type, Session&,
51 		 const std::string& path,
52 		 int chn, Source::Flag flags, bool announce = true, bool async = false);
53 
54 	static boost::shared_ptr<Source> createWritable
55 		(DataType type, Session&,
56 		 const std::string& path,
57 		 samplecnt_t rate, bool announce = true, bool async = false);
58 
59 
60 	static boost::shared_ptr<Source> createForRecovery
61 		(DataType type, Session&, const std::string& path, int chn);
62 
63 	static boost::shared_ptr<Source> createFromPlaylist
64 		(DataType type, Session& s, boost::shared_ptr<Playlist> p, const PBD::ID& orig, const std::string& name,
65 		 uint32_t chn, sampleoffset_t start, samplecnt_t len, bool copy, bool defer_peaks);
66 
67         static Glib::Threads::Cond                       PeaksToBuild;
68         static Glib::Threads::Mutex                      peak_building_lock;
69 	static std::list< boost::weak_ptr<AudioSource> > files_with_peaks;
70 
71 	static int peak_work_queue_length ();
72 	static int setup_peakfile (boost::shared_ptr<Source>, bool async);
73 };
74 
75 }
76 
77 #endif /* __ardour_source_factory_h__ */
78