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sketch.js

@@ -0,0 +1,105 @@
+let curr; // current time
+let sta; // status text
+let status; // = select("#status");
+let tAreaText; //
+let tArea;
+let vidFile = "./video.mp4";
+let subFile = "./subs.txt";
+let subText; // load from text file
+let lineStartTime = [];
+let lineEndTime = [];
+let reactTime = 0.4;
+
+let currentStamping = 0;
+let srt = "";
+
+function preload() {
+  vid = createVideo(vidFile);
+  vid.size(640, 320);
+  subText = loadStrings(subFile);
+}
+
+function setup() {
+  noCanvas();
+  status = select("#status");
+  tArea = select("#textArea");
+
+  for (let i = 0; i < subText.length; i++) {
+    lineStartTime[i] = null;
+    lineEndTime[i] = null;
+
+    //init all timestamps to 0
+  }
+  lineStartTime[0] = 0;
+
+}
+
+function draw() {
+  curr = vid.elt.currentTime;
+  sta = `Stamping Line ${currentStamping} | Playhead: ${curr}`;
+  tAreaText = "";
+  for (let i = -2; i < 5; i++) {
+    if (i == 0) {
+      tAreaText += "** 目前 ---> "
+    }
+    tAreaText += `${subText[currentStamping+i]} | ${lineStartTime[currentStamping+i]} --> ${lineEndTime[currentStamping+i]}` + String.fromCharCode(13, 10);
+  }
+  status.html(sta);
+  tArea.html(tAreaText);
+}
+
+function keyPressed() {
+  if (keyCode === 75) { // K
+    // 按左鍵
+    // set line start time to current time
+    lineStartTime[currentStamping + 1] = vid.elt.currentTime - reactTime;
+    if (lineStartTime[currentStamping + 1] < 0){
+      lineStartTime[currentStamping + 1] = 0;
+    }
+    // set prev line's end time, if prev end time > currentTime;
+    if (lineEndTime[currentStamping] > vid.elt.currentTime - reactTime || lineEndTime[currentStamping] == null) {
+      lineEndTime[currentStamping] = vid.elt.currentTime - 0.03 - reactTime;
+      if (lineEndTime[currentStamping] < 0){
+        lineEndTime[currentStamping] = 0;
+      }
+    }
+    currentStamping++;
+  } else if (keyCode === 76) { // L
+    lineEndTime[currentStamping] = vid.elt.currentTime - reactTime;
+  } else if (keyCode === 73) { // I
+    currentStamping--;
+  } else if (keyCode === 79) { // O
+    currentStamping++;
+  } else if (keyCode === 81) {
+    // Q : Make SRT
+    makeSRT();
+  }
+}
+
+function makeSRT() {
+    srt = "";
+  for (let i = 0; i < subText.length; i++) {
+    // line number
+    srt += (i + 1) + "\n";
+    // line time
+    let sh, sm, ss, sms;
+    let eh, em, es, ems;
+    sh = floor(lineStartTime[i] / 3600);
+    sm = floor((lineStartTime[i] % 3600) / 60);
+    ss = floor(lineStartTime[i] % 60);
+    sms = floor((lineStartTime[i] * 1000) % 1000);
+    eh = floor(lineEndTime[i] / 3600);
+    em = floor((lineEndTime[i] % 3600) / 60);
+    es = floor(lineEndTime[i] % 60);
+    ems = floor((lineEndTime[i] * 1000) % 1000);
+
+    srt += `${sh}:${sm}:${ss},${sms} --> ${eh}:${em}:${es},${ems}\n`
+    srt += subText[i];
+    srt += "\n\n"
+  }
+  console.log(srt);
+  let blob = new Blob([srt], {
+    type: "text/plain;charset=utf-8"
+  });
+  saveAs(blob, 'srt.txt');
+}