You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

57 lines
1.6 KiB
HTML

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="" xml:lang="">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=yes" />
<style>
#word {
position:relative;
text-align: center;
}
#word .content {
font-size: 100px;
color: black;
}
#word .content.iffy {
color: lightpink;
}
</style>
</head>
<body>
<audio controls style="width: 100%">
<track kind="metadata" id="metadata" label="captions" src="w25mia60_words.vtt"></track>
<source src="w25mia60.mp3">
</audio>
<div id="word">
<div class="content">hello</div>
</div>
<script>
const word_content = document.querySelector("#word .content");
const track = document.querySelector("track#metadata");
track.addEventListener("cuechange", function (e) {
// console.log(`track: cuechange: ${this}`);
if (this.track.activeCues) {
let word = this.track.activeCues[0]?.text;
console.log("word", word);
if (word) {
word = JSON.parse(word);
word_content.innerText = word['text'];
word_content.style.fontSize = (100 * word['confidence']) + "px";
if (word['confidence'] < 1.0 && !word_content.classList.contains("iffy")) {
word_content.classList.add("iffy");
} else if (word_content.classList.contains("iffy")) {
word_content.classList.remove("iffy");
}
}
}
});
track.track.mode = "hidden";
</script>
</body>
</html>