From dcb334ff8120bde81643b906748c8421a330481a Mon Sep 17 00:00:00 2001
From: klemek <klemek.dev@proton.me>
Date: Sat, 16 May 2026 18:22:48 +0200
Subject: [PATCH] fix: handle VIDIOC_QBUF error while reading video

---
 src/video.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/video.c b/src/video.c
index c95cf64..38072af 100644
--- a/src/video.c
+++ b/src/video.c
@@ -306,11 +306,15 @@ static unsigned int read_video(VideoCapture *video_capture) {
 
   if (ioctl(video_capture->fd, VIDIOC_DQBUF,
             &video_capture->buf[video_capture->buf_index]) != -1) {
-    ioctl(video_capture->fd, VIDIOC_QBUF,
-          &video_capture->buf[video_capture->buf_index]);
-    video_capture->buf_index =
-        (video_capture->buf_index + 1) % video_capture->buf_count;
-    return true;
+    if (ioctl(video_capture->fd, VIDIOC_QBUF,
+              &video_capture->buf[video_capture->buf_index]) == -1) {
+      video_capture->error = true;
+      return false;
+    } else {
+      video_capture->buf_index =
+          (video_capture->buf_index + 1) % video_capture->buf_count;
+      return true;
+    }
   }
 
   if (ioctl(video_capture->fd, VIDIOC_QUERYCAP, &cap) == -1) {