diff --git a/libavcodec/vc1.c b/libavcodec/vc1.c
index acddeb9091..159ed9c3ce 100644
--- a/libavcodec/vc1.c
+++ b/libavcodec/vc1.c
@@ -4272,7 +4272,7 @@ AVCodec vc1_decoder = {
     NULL,
     vc1_decode_end,
     vc1_decode_frame,
-    CODEC_CAP_DELAY,
+    CODEC_CAP_DR1 | CODEC_CAP_DELAY,
     NULL,
     .long_name = NULL_IF_CONFIG_SMALL("SMPTE VC-1"),
     .pix_fmts = ff_hwaccel_pixfmt_list_420
@@ -4287,7 +4287,7 @@ AVCodec wmv3_decoder = {
     NULL,
     vc1_decode_end,
     vc1_decode_frame,
-    CODEC_CAP_DELAY,
+    CODEC_CAP_DR1 | CODEC_CAP_DELAY,
     NULL,
     .long_name = NULL_IF_CONFIG_SMALL("Windows Media Video 9"),
     .pix_fmts = ff_hwaccel_pixfmt_list_420