diff --git a/libavcodec/cdgraphics.c b/libavcodec/cdgraphics.c
index fa835b9897..8f04e01297 100644
--- a/libavcodec/cdgraphics.c
+++ b/libavcodec/cdgraphics.c
@@ -71,8 +71,9 @@ typedef struct CDGraphicsContext {
 static void cdg_init_frame(AVFrame *frame)
 {
     avcodec_get_frame_defaults(frame);
-    frame->reference = 1;
+    frame->reference = 3;
     frame->buffer_hints = FF_BUFFER_HINTS_VALID    |
+                          FF_BUFFER_HINTS_READABLE |
                           FF_BUFFER_HINTS_PRESERVE |
                           FF_BUFFER_HINTS_REUSABLE;
 }