twotalesanimation
35 lines
1.0 KiB
TypeScript
35 lines
1.0 KiB
TypeScript
// utils/getVideoDuration.ts
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export async function getVideoDuration(file: File): Promise<number> {
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return new Promise((resolve, reject) => {
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// create an object URL for the file
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const url = URL.createObjectURL(file);
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const video = document.createElement('video');
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// Make sure it doesn't try to load UI, just metadata
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video.preload = 'metadata';
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video.src = url;
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const cleanup = () => {
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URL.revokeObjectURL(url);
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video.removeAttribute('src');
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video.load();
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};
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video.addEventListener('loadedmetadata', () => {
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// duration in seconds (float)
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const duration = video.duration;
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cleanup();
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// Some encodings return Infinity — guard that
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if (!isFinite(duration) || duration <= 0) {
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return reject(new Error('Could not determine duration'));
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}
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resolve(Math.round(duration)); // return integer seconds
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});
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video.addEventListener('error', (e) => {
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cleanup();
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reject(new Error('Error reading video metadata'));
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});
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});
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}
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