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Add logical time to transportprocessor

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This commit is contained in:
Miika Alonen
2023-08-24 23:15:36 +03:00
parent dd48d40745
commit 4a03a72645
3 changed files with 37 additions and 18 deletions
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29
src/TransportProcessor.js
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@ -4,7 +4,11 @@ class TransportProcessor extends AudioWorkletProcessor {
super(options);
this.port.addEventListener("message", this.handleMessage);
this.port.start();
this.stated = false;
this.started = false;
this.totalPausedTime = 0;
this.lastPausedTime = 0;
this.startedAgainTime = 0;
this.wasStopped = false;
}
handleMessage = (message) => {
@ -14,14 +18,33 @@ class TransportProcessor extends AudioWorkletProcessor {
this.started = true;
} else if (message.data === "pause") {
this.started = false;
if(this.lastPausedTime === 0) {
this.lastPausedTime = currentTime;
}
} else if (message.data === "stop") {
this.started = false;
this.currentTime = 0;
this.totalPausedTime = 0;
this.lastPausedTime = 0;
this.startedAgainTime = 0;
this.wasStopped = true;
}
};
process(inputs, outputs, parameters) {
if (this.started) this.port.postMessage({ type: "bang", currentTime });
if (this.started) {
if(this.lastPausedTime>0) {
const pausedTime = currentTime-this.lastPausedTime;
this.totalPausedTime += pausedTime;
this.lastPausedTime = 0;
}
if(this.wasStopped) {
this.startedAgainTime = currentTime;
this.wasStopped = false;
}
const logicalTime = currentTime-this.totalPausedTime-this.startedAgainTime;
//console.log("Logical/Current:", logicalTime, currentTime);
this.port.postMessage({ type: "bang", logicalTime });
}
return true;
}
}