From 3fe5ef636203e450622b68aebea2d8cdebd2faa5 Mon Sep 17 00:00:00 2001
From: "yiqin.li" <yiqin.li@jutze.com.cn>
Date: Wed, 31 Jan 2024 14:25:22 +0800
Subject: [PATCH] bug fix, in some case stream reading functions may block
 indefinitely.

---
 lib/private/Preview/Movie.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/private/Preview/Movie.php b/lib/private/Preview/Movie.php
index 13d868cd583ba..d3f461706483a 100644
--- a/lib/private/Preview/Movie.php
+++ b/lib/private/Preview/Movie.php
@@ -144,6 +144,8 @@ private function generateThumbNail(int $maxX, int $maxY, string $absPath, int $s
 		$returnCode = -1;
 		$output = "";
 		if (is_resource($proc)) {
+			stream_set_blocking($pipes[1], 0);
+			stream_set_blocking($pipes[2], 0);
 			$stdout = trim(stream_get_contents($pipes[1]));
 			$stderr = trim(stream_get_contents($pipes[2]));
 			$returnCode = proc_close($proc);