Reuse Playback-object ?

[FischertBilligheim]

Hi Max,
I have a question referring the "Playback" object:

If I created a playback-object, and I'm now using it (e.g. also by having added EventHandlers and play-event filters) and now I'm modifying the midi-events:
Do I always have to recreate a new Playback-object? Or can I anyhow reuse it and give the updated chunks/midi-events to it? (So I don't always have to add the event-handlers to it, or to set a new current time........)

Best regards
Thomas

[melanchall]

Hi Thomas,

Right now there is no way to update Playback object on changes in underlying events collection. So you need to recreate it every time.

BUT I have plans regarding what you talking about. So please don't close the issue and let's discuss what API will be most flexible and useful.

I suppose we should introduce some collection type (like ObservableCollection) which will fire some event like CollectionChanged. If Playback created by an instance of this collection type, Playback will subscribe to that CollectionChanged event and update internal state when it's fired.

Does this sound good for you?

Max

[FischertBilligheim]

Hi Max,
That sounds great to me !! 👍😉

[melanchall]

Thomas,

Right now I'm working on documentation of DryWetMIDI so I'll return to this task as soon as possible. Please be patient :)

[melanchall]

Thomas,

I'm ready to implement the feature. Please tell me what kind of objects do you want to track first? Low-level (MidiEvent) or high-level ones (TimedEvent, Note and Chord)? Last one easier to support so I can track these objects at first iteration.

[FischertBilligheim]

Hi Max,
mmmh - good question....
I think High-Level events, specially "Notes" are the most important ones. This would be great for a first iteration....

By the way:
You mentioned Chords: Are they relevant for a PlayBack-object?

Best regards
Thomas

[melanchall]

Thomas,

Yes, you can use instances of any class that implements ITimedObject: TimedEvent, Note or Chord.

OK, I'm starting the feature implementation :)

[melanchall]

Small piece of news.

I'm implementing the feature in separate branch: playback-source. It's quite difficult task with a lot of things involved so please be patient. I suppose the first implementation will not be effficient in terms of performance but I hope we'll improve it with your feedback :)

[melanchall]

Setup benchmarking to store API performance metrics in InfluxDB Cloud to monitor how new feature will affect playback latency.