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44 lines
943 B
C
44 lines
943 B
C
/* PipeWire */
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/* SPDX-FileCopyrightText: Copyright © 2020 Wim Taymans */
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/* SPDX-License-Identifier: MIT */
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#include <stdio.h>
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#include <spa/utils/defs.h>
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struct midi_file;
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struct midi_event {
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uint32_t track;
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double sec;
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uint8_t *data;
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uint32_t size;
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struct {
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uint32_t offset;
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uint32_t size;
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union {
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struct {
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uint32_t uspqn; /* microseconds per quarter note */
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} tempo;
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} parsed;
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} meta;
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};
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struct midi_file_info {
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uint16_t format;
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uint16_t ntracks;
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uint16_t division;
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};
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struct midi_file *
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midi_file_open(const char *filename, const char *mode, struct midi_file_info *info);
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int midi_file_close(struct midi_file *mf);
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int midi_file_next_time(struct midi_file *mf, double *sec);
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int midi_file_read_event(struct midi_file *mf, struct midi_event *event);
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int midi_file_write_event(struct midi_file *mf, const struct midi_event *event);
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int midi_file_dump_event(FILE *out, const struct midi_event *event);
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