83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
/*
|
|
* Copyright (C) 2009-2014 David Robillard <d@drobilla.net>
|
|
*
|
|
* This program 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.
|
|
*
|
|
* This program 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 more 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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef EVORAL_OLD_SMF_HPP
|
|
#define EVORAL_OLD_SMF_HPP
|
|
|
|
#include "evoral/visibility.h"
|
|
|
|
namespace Evoral {
|
|
|
|
template<typename Time> class Event;
|
|
|
|
/** Standard Midi File (Type 0)
|
|
*/
|
|
template<typename Time>
|
|
class /*LIBEVORAL_API*/ 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 */
|
|
|