diff options
| -rw-r--r-- | src/convert.rs | 3 | ||||
| -rw-r--r-- | src/midifile.rs | 18 |
2 files changed, 20 insertions, 1 deletions
diff --git a/src/convert.rs b/src/convert.rs index 125e687..a96c802 100644 --- a/src/convert.rs +++ b/src/convert.rs @@ -3,7 +3,7 @@ use std::cell::RefCell; use std::rc::Rc; use crate::itfile::{ITFile, Cell}; use crate::utils::Rational; -use crate::midifile::{MidiEvent, TimedMidiEvent, MidiTrack, MidiFile, lint_track}; +use crate::midifile::{MidiEvent, TimedMidiEvent, MidiTrack, MidiFile, lint_track, lint_tempo}; use crate::portmod::Effect; #[derive(Debug)] @@ -410,6 +410,7 @@ impl<'a, 'b> Converter<'a, 'b> t: t.last().unwrap_or(&TimedMidiEvent{t: 0, e: MidiEvent::MetaEndOfTrack}).t, e: MidiEvent::MetaEndOfTrack})); + self.trks[0] = lint_tempo(&self.trks[0]); self.trks.iter().for_each(|t| { lint_track(t); }); } pub fn result(self) -> MidiFile diff --git a/src/midifile.rs b/src/midifile.rs index 00e20f5..8210f70 100644 --- a/src/midifile.rs +++ b/src/midifile.rs @@ -137,6 +137,24 @@ fn write_track<W>(f: &mut W, trk: &MidiTrack) -> io::Result<()> where W: Write Ok(()) } +pub fn lint_tempo(trk: &MidiTrack) -> MidiTrack +{ + trk.iter().fold((f64::NAN, Vec::new()), |(last, mut t), e| { + match e.e + { + MidiEvent::MetaTempo(x) => { + if x != last + { + t.push(e.clone()); + (x, t) + } + else { (last , t) } + }, + _ => { t.push(e.clone()); (last, t) } + } + }).1 +} + pub fn lint_track(trk: &MidiTrack) -> bool { let mut ret = true; |