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/* This file is part of Evoral.
* Copyright(C) 2008 Dave Robillard <http://drobilla.net>
* Copyright(C) 2000-2008 Paul Davis
*
* 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
*/
#ifndef EVORAL_OLD_SMF_HPP
#define EVORAL_OLD_SMF_HPP
namespace Evoral {
template<typename Time> class Event;
template<typename Time> class EventRingBuffer;
/** Standard Midi File (Type 0)
*/
template<typename Time>
class SMF {
public:
SMF();
virtual ~SMF();
void seek_to_start() const;
uint16_t ppqn() const { return _ppqn; }
bool is_empty() const { return _empty; }
bool eof() const { return feof(_fd); }
Time last_event_time() const { return _last_ev_time; }
void begin_write();
void append_event_delta(uint32_t delta_t, const Event<Time>& ev);
void end_write() THROW_FILE_ERROR;
void flush();
int flush_header();
int flush_footer();
protected:
int open(const std::string& path) THROW_FILE_ERROR;
void close() THROW_FILE_ERROR;
int read_event(uint32_t* delta_t, uint32_t* size, uint8_t** buf) const;
private:
/** Used by flush_footer() to find the position to write the footer */
void seek_to_footer_position();
/** Write the track footer at the current seek position */
void write_footer();
void write_chunk_header(const char id[4], uint32_t length);
void write_chunk(const char id[4], uint32_t length, void* data);
size_t write_var_len(uint32_t val);
uint32_t read_var_len() const;
static const uint16_t _ppqn = 19200;
FILE* _fd;
Time _last_ev_time; ///< last frame time written, relative to source start
uint32_t _track_size;
uint32_t _header_size; ///< size of SMF header, including MTrk chunk header
bool _empty; ///< true iff file contains(non-empty) events
};
}; /* namespace Evoral */
#endif /* EVORAL_OLD_SMF_HPP */
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