diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 0c840183b405b1c4fd1664bc941b3f2a8654f477..0958c09fc697e3e746cbf03607d74e1fae5ca7da 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -70,6 +70,12 @@ static const enum PixelFormat hwaccel_pixfmt_list_h264_jpeg_420[] = {
     PIX_FMT_NONE
 };
 
+int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx)
+{
+    H264Context *h = avctx->priv_data;
+    return h ? h->sps.num_reorder_frames : 0;
+}
+
 /**
  * Check if the top & left blocks are available if needed and
  * change the dc mode so it only uses the available blocks.
diff --git a/libavcodec/internal.h b/libavcodec/internal.h
index 50f00ef1528b62dd903b66ad50a95a0c36f87904..49c1a18edf718bca70b7499ee5ec6ff9f8e412c3 100644
--- a/libavcodec/internal.h
+++ b/libavcodec/internal.h
@@ -171,4 +171,6 @@ int ff_thread_can_start_frame(AVCodecContext *avctx);
 
 int ff_get_logical_cpus(AVCodecContext *avctx);
 
+int avpriv_h264_has_num_reorder_frames(AVCodecContext *avctx);
+
 #endif /* AVCODEC_INTERNAL_H */