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maintenance and audio nudging bar

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This commit is contained in:
Raphaël Forment
2023-10-07 20:09:19 +02:00
parent 22e1e36169
commit 0c21770eaa
10 changed files with 173 additions and 123 deletions
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84
src/TransportProcessor.js
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@ -1,47 +1,51 @@
class TransportProcessor extends AudioWorkletProcessor {
constructor(options) {
super(options);
this.port.addEventListener("message", this.handleMessage);
this.port.start();
this.started = false;
this.bpm = 120;
this.ppqn = 48;
this.currentPulsePosition = 0;
}
handleMessage = (message) => {
if(message.data && message.data.type === "ping") {
this.port.postMessage(message.data);
} else if (message.data === "start") {
this.started = true;
} else if(message.data === "pause") {
this.started = false;
} else if(message.data === "stop") {
this.started = false;
} else if(message.data.type === 'bpm') {
this.bpm = message.data.value;
this.currentPulsePosition = 0;
} else if(message.data.type === 'ppqn') {
this.ppqn = message.data.value;
this.currentPulsePosition = 0;
}
};
constructor(options) {
super(options);
this.port.addEventListener("message", this.handleMessage);
this.port.start();
this.nudge = 0;
this.started = false;
this.bpm = 120;
this.ppqn = 48;
this.currentPulsePosition = 0;
}
process(inputs, outputs, parameters) {
if (this.started) {
const beatNumber = currentTime / (60 / this.bpm);
const currentPulsePosition = Math.ceil(beatNumber * this.ppqn);
if(currentPulsePosition > this.currentPulsePosition) {
this.currentPulsePosition = currentPulsePosition;
this.port.postMessage({ type: "bang" });
}
}
return true;
handleMessage = (message) => {
if (message.data && message.data.type === "ping") {
this.port.postMessage(message.data);
} else if (message.data === "start") {
this.started = true;
} else if (message.data === "pause") {
this.started = false;
} else if (message.data === "stop") {
this.started = false;
} else if (message.data.type === 'bpm') {
this.bpm = message.data.value;
this.currentPulsePosition = 0;
} else if (message.data.type === 'ppqn') {
this.ppqn = message.data.value;
this.currentPulsePosition = 0;
} else if (message.data.type === 'nudge') {
this.nudge = message.data.value
}
}
process(inputs, outputs, parameters) {
if (this.started) {
const adjustedCurrentTime = currentTime + (this.nudge / 1000);
const beatNumber = adjustedCurrentTime / (60 / this.bpm);
const currentPulsePosition = Math.ceil(beatNumber * this.ppqn);
if (currentPulsePosition > this.currentPulsePosition) {
this.currentPulsePosition = currentPulsePosition;
this.port.postMessage({ type: "bang" });
}
}
return true;
}
}
registerProcessor(
"transport",
TransportProcessor
);
"transport",
TransportProcessor
);