From 0881c8b68533ac0d70153b942a6a1ff8b0be275b Mon Sep 17 00:00:00 2001
From: Borewit <Borewit@users.noreply.github.com>
Date: Thu, 18 Jul 2024 22:05:09 +0200
Subject: [PATCH] Prevent Matroska parser from crashing when the file size is
 unknown

---
 lib/matroska/MatroskaParser.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/matroska/MatroskaParser.ts b/lib/matroska/MatroskaParser.ts
index 923955eeb..4a88584ea 100644
--- a/lib/matroska/MatroskaParser.ts
+++ b/lib/matroska/MatroskaParser.ts
@@ -51,7 +51,8 @@ export class MatroskaParser extends BasicParser {
   }
 
   public async parse(): Promise<void> {
-    const matroska = await this.parseContainer(matroskaDtd.elements, this.tokenizer.fileInfo.size, []) as any as IMatroskaDoc;
+    const containerSize = this.tokenizer.fileInfo.size ?? Number.MAX_SAFE_INTEGER;
+    const matroska = await this.parseContainer(matroskaDtd.elements, containerSize, []) as any as IMatroskaDoc;
 
     this.metadata.setFormat('container', `EBML/${matroska.ebml.docType}`);
     if (matroska.segment) {