1 files changed, 5 insertions, 0 deletions
diff --git a/video/out/vo.h b/video/out/vo.h
index 8df825e582..a2073944b3 100644
--- a/video/out/vo.h
+++ b/video/out/vo.h
@@ -194,6 +194,11 @@ enum {
     VO_CAP_FILM_GRAIN   = 1 << 3,
 };
 
+enum {
+    // Require DR buffers to be host-cached (i.e. fast readback)
+    VO_DR_FLAG_HOST_CACHED = 1 << 0,
+};
+
 #define VO_MAX_REQ_FRAMES 10
 
 struct vo;