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subtitle.js
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subtitle.js
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// Function to parse the subtitle file content
// Function to parse the subtitle file content
function parseSubtitleFile(content, subtitleData) {
const lines = content.split('\n');
let currentSubtitle = null;
for (let i = 0; i < lines.length; i++) {
const line = lines[i]?.trim();
if (line?.startsWith('<title>')) {
// Parse title tag
const title = line.substring(7, line.length - 8);
subtitleData.title = title;
console.log("title: " + title);
} else if (line?.startsWith('<author>')) {
// Parse author tag
const author = line.substring(8, line.length - 9);
subtitleData.author = author;
console.log("author: " + author);
} else if (line?.startsWith('<publisher>')) {
// Parse publisher tag
const publisher = line.substring(11, line.length - 12);
subtitleData.publisher = publisher;
} else if (line?.startsWith('<date>')) {
// Parse date tag
const date = line.substring(6, line.length - 7);
subtitleData.date = date;
} else if (line?.startsWith('<licence>')) {
// Parse licence tag
const licence = line.substring(9, line.length - 10);
subtitleData.licence = licence;
} else if (line?.startsWith('<note>')) {
// Parse note tag
const note = line.substring(6, line.length - 7);
subtitleData.note = note;
console.log("note: " + note);
} else if (line?.startsWith('<lang>')) {
// Parse lang tag
const lang = line.substring(6, line.length - 7);
subtitleData.languages = lang.split('<');
console.log(subtitleData.languages);
console.log(lang);
} else if (line?.startsWith('<start>')) {
// Parse start tag
currentSubtitle = { text: {}, timings: [] };
} else if (line?.startsWith('//')) {
// Skip commented lines
continue;
} else if (line === '') {
// Empty line, skip
continue;
} else if (currentSubtitle) {
var number = [1, 2, 3, 4, 5, 6, 7, 8, 9, 0];
console.log(number.some(num => line.startsWith(num)));
console.log(line)
// Parse subtitle lines
if (line.startsWith(number.some(num => line.startsWith(num)))) {
// Timings line
const timings = line.substring(1, line.length - 1).split(' --> ');
console.log(timings);
const startTime = parseTime(timings[0]);
console.log(startTime);
const endTime = parseTime(timings[1]);
console.log(endTime);
currentSubtitle.timings.push({ start: startTime, end: endTime });
console.log(startTime);
console.log(endTime);
} else {
// Text line
const lineParts = line.split(':');
if (lineParts.length === 2) {
const lang = lineParts[0].trim();
const text = lineParts[1].trim();
currentSubtitle.text[lang] = text;
}
}
}
}
// Push the last subtitle if available
if (currentSubtitle) {
subtitleData.subtitles.push(currentSubtitle);
}
}
// Function to parse the time in HH:MM:SS,MMM format
// Function to parse the time in HH:MM:SS,sss format
function parseTime(timeString) {
const timeParts = timeString.split(':');
console.log(timeParts)
const hours = parseInt(timeParts[0]);
const minutes = parseInt(timeParts[1]);
const seconds = parseInt(timeParts[3]);
console.log(hours, minutes, seconds)
const milliseconds = parseInt(timeParts[4].split(',')[0]);
return hours * 3600 + minutes * 60 + seconds + milliseconds / 1000;
}
// ... Rest of the code ...
// Function to integrate the subtitles with the video element
// Function to integrate the subtitles with the video element
function integrateSubtitles(subtitleData, videoElement) {
const subtitleOverlay = document.getElementById('subtitleOverlay');
let subtitlesByLanguage = {};
videoElement.addEventListener('timeupdate', function () {
const currentTime = videoElement.currentTime;
const subtitle = findSubtitleByTime(subtitleData.subtitles, currentTime);
console.log(subtitle);
let subtitleText = '';
if (subtitle) {
const language = 'en'; // Set the default language to 'en'
subtitleText = fetchSubtitleText(subtitle, language);
console.log(subtitleText);
if (subtitlesByLanguage[language]) {
// Remove previous subtitles for the same language
subtitleOverlay.removeChild(subtitlesByLanguage[language]);
delete subtitlesByLanguage[language];
}
if (subtitleText) {
const subtitleElement = document.createElement('span');
subtitleElement.textContent = subtitleText;
subtitleElement.style.display = 'block';
subtitlesByLanguage[language] = subtitleElement;
subtitleOverlay.appendChild(subtitleElement);
}
} else {
// No subtitle found for the current time, remove all subtitles
Object.values(subtitlesByLanguage).forEach((subtitleElement) => {
subtitleOverlay.removeChild(subtitleElement);
});
subtitlesByLanguage = {};
}
});
}
// Function to handle the file selection
function handleFileSelection(event) {
const file = event.target.files[0];
if (file) {
const reader = new FileReader();
reader.onload = function (e) {
const subtitleContent = e.target.result;
const subtitleData = { subtitles: [], text: {} }; // Create an empty subtitleData object
parseSubtitleFile(subtitleContent, subtitleData);
const videoElement = document.getElementById('videoPlayer');
integrateSubtitles(subtitleData, videoElement);
};
reader.readAsText(file);
}
}
// Initialize the file input element
const fileInput = document.getElementById('subtitleFileInput'); // Replace 'subtitleFileInput' with the ID of your file input element
fileInput.addEventListener('change', handleFileSelection);
for (var j = 0; j < block.subtitles.length; j++) {
var subtitleElement = document.createElement('p');
subtitleElement.innerHTML = block.subtitles[j];
subtitleContainer.appendChild(subtitleElement);
}