2 Copyright (C) 2006 Paul Davis
3 Written by Dave Robillard, 2006
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.
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.
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 #ifndef __ardour_smf_filesource_h__
22 #define __ardour_smf_filesource_h__
27 #include <ardour/midi_source.h>
33 /** Standard Midi File (Type 0) Source */
34 class SMFSource : public MidiSource {
41 RemovableIfEmpty = 0x10,
42 RemoveAtDestroy = 0x20,
46 /** Constructor for existing external-to-session files */
47 SMFSource (Session& session, std::string path, Flag flags = Flag(0));
49 /* Constructor for existing in-session files */
50 SMFSource (Session& session, const XMLNode&);
52 virtual ~SMFSource ();
54 /* this block of methods do nothing for regular file sources, but are significant
55 for files used in destructive recording.
57 // FIXME and thus are useless for MIDI.. but make MidiDiskstream compile easier! :)
59 virtual nframes_t last_capture_start_frame() const { return 0; }
60 virtual void mark_capture_start (nframes_t) {}
61 virtual void mark_capture_end () {}
62 virtual void clear_capture_marks() {}
64 int set_name (string newname, bool destructive);
66 string path() const { return _path; }
68 void set_allow_remove_if_empty (bool yn);
69 void mark_for_remove();
71 int update_header (nframes_t when, struct tm&, time_t);
75 int move_to_trash (const string trash_dir_name);
77 static bool is_empty (string path);
78 void mark_streaming_write_completed ();
80 void mark_take (string);
81 string take_id() const { return _take_id; }
83 static void set_search_path (string);
84 static void set_header_position_offset (nframes_t offset, bool negative);
86 XMLNode& get_state ();
87 int set_state (const XMLNode&);
91 int init (string idstr, bool must_exist);
93 nframes_t read_unlocked (MidiRingBuffer& dst, nframes_t start, nframes_t cn, nframes_t stamp_offset) const;
94 nframes_t write_unlocked (MidiRingBuffer& dst, nframes_t cnt);
96 bool find (std::string path, bool must_exist, bool& is_new);
97 bool removable() const;
98 bool writable() const { return _flags & Writable; }
102 void write_chunk_header(char id[4], uint32_t length);
103 void write_chunk(char id[4], uint32_t length, void* data);
104 size_t write_var_len(uint32_t val);
105 uint32_t read_var_len() const;
106 int read_event(MidiEvent& ev) const;
112 bool _allow_remove_if_empty;
113 uint64_t _timeline_position;
115 nframes_t _last_ev_time; // last frame time written, relative to source start
116 uint32_t _track_size;
117 uint32_t _header_size; // size of SMF header, including MTrk chunk header
119 static string _search_path;
122 }; /* namespace ARDOUR */
124 #endif /* __ardour_smf_filesource_h__ */