prevent multiple output streams

umlaeute · Apr 25, 2023 · d78f95b · d78f95b
1 parent 19752a7
commit d78f95b
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/v4l2loopback.c b/v4l2loopback.c
@@ -1506,6 +1506,10 @@ static int vidioc_reqbufs(struct file *file, void *fh,
 		return 0;
 	}
 
+	if (V4L2_TYPE_IS_OUTPUT(b->type) && (!dev->ready_for_output)) {
+		return -EBUSY;
+	}
+
 	init_buffers(dev);
 	switch (b->memory) {
 	case V4L2_MEMORY_MMAP: