* Copyright(C) 2008 Dave Robillard <http://drobilla.net>
* Copyright(C) 2000-2008 Paul Davis
* Author: Hans Baier
- *
+ *
* Evoral 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.
- *
+ *
* Evoral 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 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.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
typedef smf_track_struct smf_track_t;
namespace Evoral {
-
-template<typename Time> class Event;
-template<typename Time> class EventRingBuffer;
-#define THROW_FILE_ERROR throw(typename SMF<Time>::FileError)
+#define THROW_FILE_ERROR throw(FileError)
-/** Standard Midi File (Type 0)
+/** Standard Midi File.
+ * Currently only tempo-based time of a given PPQN is supported.
*/
-template<typename Time>
class SMF {
public:
class FileError : public std::exception {
const char* what() const throw() { return "Unknown SMF error"; }
};
- SMF() : _last_ev_time(0), _smf(0), _smf_track(0), _empty(true) {};
+ SMF() : _smf(0), _smf_track(0), _empty(true) {};
virtual ~SMF();
-
- int open(const std::string& path, bool create=true, int track=1) THROW_FILE_ERROR;
+
+ int open(const std::string& path, int track=1) THROW_FILE_ERROR;
+ int create(const std::string& path, int track=1, uint16_t ppqn=19200) THROW_FILE_ERROR;
void close() THROW_FILE_ERROR;
+ const std::string& file_path() const { return _file_path; };
+
void seek_to_start() const;
-
- uint16_t ppqn() const { return _ppqn; }
- bool is_empty() const { return _empty; }
- bool eof() const { assert(false); return true; }
-
- Time last_event_time() const { return _last_ev_time; }
-
+ int seek_to_track(int track);
+
+ int read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const;
+
+ uint16_t num_tracks() const;
+ uint16_t ppqn() const;
+ bool is_empty() const { return _empty; }
+
void begin_write();
- void append_event_delta(uint32_t delta_t, const Event<Time>& ev);
+ void append_event_delta(uint32_t delta_t, uint32_t size, const uint8_t* buf);
void end_write() THROW_FILE_ERROR;
-
+
void flush() {};
- int flush_header() { return 0; }
- int flush_footer() { return 0; }
-protected:
- int read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const;
+ double round_to_file_precision (double val) const;
private:
- static const uint16_t _ppqn = 19200;
-
- Time _last_ev_time; ///< last frame time written, relative to source start
-
- std::string _path;
+ std::string _file_path;
smf_t* _smf;
smf_track_t* _smf_track;
-
bool _empty; ///< true iff file contains(non-empty) events
};