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Generate random BigInts instead of doubles

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Vanilagy
2025-09-19 23:21:36 +02:00
parent 216843e56a
commit 9e1a23aefd
1 changed files with 9 additions and 4 deletions
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src/matroska/matroska-muxer.ts
+9 -4
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@@ -541,7 +541,7 @@ export class MatroskaMuxer extends Muxer {
const metadataTags = this.output._metadataTags; const metadataTags = this.output._metadataTags;
const elements: EBMLElement[] = []; const elements: EBMLElement[] = [];
const existingFileUids = new Set<number>(); const existingFileUids = new Set<bigint>();
const images = metadataTags.images ?? []; const images = metadataTags.images ?? [];
for (const image of images) { for (const image of images) {
@@ -551,11 +551,16 @@ export class MatroskaMuxer extends Muxer {
imageName = baseName + (imageMimeTypeToExtension(image.mimeType) ?? ''); imageName = baseName + (imageMimeTypeToExtension(image.mimeType) ?? '');
} }
let fileUid: number; let fileUid: bigint;
while (true) { while (true) {
fileUid = Math.floor(Math.random() * Number.MAX_SAFE_INTEGER); // Generate a random 64-bit unsigned integer
fileUid = 0n;
for (let i = 0; i < 8; i++) {
fileUid <<= 8n;
fileUid |= BigInt(Math.floor(Math.random() * 256));
}
if (fileUid !== 0 && !existingFileUids.has(fileUid)) { if (fileUid !== 0n && !existingFileUids.has(fileUid)) {
break; break;
} }
} }