diff --git a/libavformat/utils.c b/libavformat/utils.c
index 3807954e21..86e5408c42 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -901,6 +901,22 @@ static int is_intra_only(AVCodecContext *enc){
     return 0;
 }
 
+static int has_decode_delay_been_guessed(AVStream *st)
+{
+    if(st->codec->codec_id != CODEC_ID_H264) return 1;
+#if CONFIG_H264_DECODER
+    if(st->codec->has_b_frames &&
+       avpriv_h264_has_num_reorder_frames(st->codec) == st->codec->has_b_frames)
+        return 1;
+#endif
+    if(st->codec->has_b_frames<3)
+        return st->info->nb_decoded_frames >= 6;
+    else if(st->codec->has_b_frames<4)
+        return st->info->nb_decoded_frames >= 18;
+    else
+        return st->info->nb_decoded_frames >= 20;
+}
+
 static AVPacketList *get_next_pkt(AVFormatContext *s, AVStream *st, AVPacketList *pktl)
 {
     if (pktl->next)
@@ -2313,22 +2329,6 @@ static int has_codec_parameters(AVStream *st, const char **errmsg_ptr)
     return 1;
 }
 
-static int has_decode_delay_been_guessed(AVStream *st)
-{
-    if(st->codec->codec_id != CODEC_ID_H264) return 1;
-#if CONFIG_H264_DECODER
-    if(st->codec->has_b_frames &&
-       avpriv_h264_has_num_reorder_frames(st->codec) == st->codec->has_b_frames)
-        return 1;
-#endif
-    if(st->codec->has_b_frames<3)
-        return st->info->nb_decoded_frames >= 6;
-    else if(st->codec->has_b_frames<4)
-        return st->info->nb_decoded_frames >= 18;
-    else
-        return st->info->nb_decoded_frames >= 20;
-}
-
 /* returns 1 or 0 if or if not decoded data was returned, or a negative error */
 static int try_decode_frame(AVStream *st, AVPacket *avpkt, AVDictionary **options)
 {