1 files changed, 4 insertions, 0 deletions
diff --git a/libavdevice/xv.c b/libavdevice/xv.c
index ad604825f2..a4b44c8eda 100644
--- a/libavdevice/xv.c
+++ b/libavdevice/xv.c
@@ -149,6 +149,10 @@ static int xv_write_header(AVFormatContext *s)
         ret = AVERROR_EXTERNAL;
         goto fail;
     }
+    if (!num_adaptors) {
+        av_log(s, AV_LOG_ERROR, "No X-Video adaptors present\n");
+        return AVERROR(ENODEV);
+    }
     xv->xv_port = ai[0].base_id;
     XvFreeAdaptorInfo(ai);