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https://github.com/storytold/soundcraft.git
synced 2026-10-26 19:46:47 -06:00
Marco Arnulfo
4bacfb13d5
event.midi_track_offsets stored midi.offset.<track> but the note scheduler never read it, so the render was unchanged. schedule_notes now looks that many samples back into the clips, which plays the track exactly as if its MIDI had been moved by the offset. The scheduler is shared by offline bounce and realtime playback.
31 lines
1.5 KiB
Rust
31 lines
1.5 KiB
Rust
use serde_json::json;
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use soundcraft_engine::Engine;
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use soundcraft_time::Range;
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fn render(e: &Engine) -> Vec<Vec<f32>> {
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soundcraft_mix::render_range(e.session(), Range::new(0, 72_000), 512)
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}
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#[test]
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fn midi_track_offset_moves_the_notes_like_moving_the_clip() {
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let mut e = Engine::default();
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let r = e.execute("track.new", &json!({"kind": "instrument", "name": "Timing", "instrument": "subtractive_synth"})).unwrap();
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let track = r["tracks"][0].as_u64().unwrap();
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let r = e.execute("midi.new_clip", &json!({"track": track, "start": 12_000, "length": 96_000})).unwrap();
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let clip = r["clip"].as_u64().unwrap();
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e.execute("midi.note_add", &json!({"clip": clip, "pitch": 60, "start_ticks": 0, "length_ticks": 960, "velocity": 100})).unwrap();
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let baseline = render(&e);
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assert!(baseline.iter().flatten().any(|x| x.abs() > 1e-6), "the fixture must make sound");
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e.execute("event.midi_track_offsets", &json!({"track": track, "offset": 24_000})).unwrap();
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let offset = render(&e);
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assert!(offset != baseline, "the offset must change the render");
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e.execute("event.midi_track_offsets", &json!({"track": track, "offset": 0})).unwrap();
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assert!(render(&e) == baseline, "a zero offset plays as before");
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// The offset shifts playback by exactly as much as moving the clip would.
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e.execute("edit.move_clips", &json!({"clip": clip, "by": 24_000})).unwrap();
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assert!(render(&e) == offset, "the offset must match moving the clip by 24000 samples");
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}
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