From 89e0ede12fcf26807c911012b6a02bc3bac77a0e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=9D=8E=E9=80=9A=E6=B4=B2?= <zhangsongcui3371@sina.com>
Date: Wed, 23 Apr 2025 20:09:08 +0800
Subject: [PATCH] Camera (OpenBSD): add support

---
 src/detection/camera/camera_linux.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/detection/camera/camera_linux.c b/src/detection/camera/camera_linux.c
index e83f385b0..8c1cfd0ab 100644
--- a/src/detection/camera/camera_linux.c
+++ b/src/detection/camera/camera_linux.c
@@ -7,6 +7,9 @@
 
 #if FF_HAVE_LINUX_VIDEODEV2
     #include <linux/videodev2.h>
+#elif __has_include(<sys/videoio.h>) // OpenBSD
+    #include <sys/videoio.h>
+    #define FF_HAVE_LINUX_VIDEODEV2 1
 #endif
 
 const char* ffDetectCamera(FFlist* result)
@@ -19,7 +22,13 @@ const char* ffDetectCamera(FFlist* result)
         path[ARRAY_SIZE(path) - 2] = (char) (i + '0');
         FF_AUTO_CLOSE_FD int fd = open(path, O_RDONLY);
         if (fd < 0)
-            break;
+        {
+            if (errno == ENOENT)
+                break;
+            if (errno == ENXIO)
+                continue;
+            return "Failed to open /dev/videoN";
+        }
 
         struct v4l2_capability cap = {};
         if (ioctl(fd, VIDIOC_QUERYCAP, &cap) < 0 || !(cap.capabilities & V4L2_CAP_VIDEO_CAPTURE))