diff --git a/libavcodec/flac.c b/libavcodec/flac.c
index 4bd4a013ef..5ff004e01b 100644
--- a/libavcodec/flac.c
+++ b/libavcodec/flac.c
@@ -166,7 +166,7 @@ int ff_flac_get_max_frame_size(int blocksize, int ch, int bps)
     return count;
 }
 
-int avpriv_flac_is_extradata_valid(AVCodecContext *avctx,
+int ff_flac_is_extradata_valid(AVCodecContext *avctx,
                                enum FLACExtradataFormat *format,
                                uint8_t **streaminfo_start)
 {
@@ -242,4 +242,11 @@ void avpriv_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *
 {
     ff_flac_parse_streaminfo(avctx, s, buffer);
 }
+
+int avpriv_flac_is_extradata_valid(AVCodecContext *avctx,
+                               enum FLACExtradataFormat *format,
+                               uint8_t **streaminfo_start)
+{
+    return ff_flac_is_extradata_valid(avctx, format, streaminfo_start);
+}
 #endif
diff --git a/libavcodec/flac.h b/libavcodec/flac.h
index ee6d4b5234..f1307c7f50 100644
--- a/libavcodec/flac.h
+++ b/libavcodec/flac.h
@@ -102,6 +102,9 @@ void ff_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *s,
 #if LIBAVCODEC_VERSION_MAJOR < 57
 void avpriv_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *s,
                                   const uint8_t *buffer);
+int avpriv_flac_is_extradata_valid(AVCodecContext *avctx,
+                                   enum FLACExtradataFormat *format,
+                                   uint8_t **streaminfo_start);
 #endif
 
 /**
@@ -111,9 +114,9 @@ void avpriv_flac_parse_streaminfo(AVCodecContext *avctx, struct FLACStreaminfo *
  * @param[out] streaminfo_start pointer to start of 34-byte STREAMINFO data.
  * @return 1 if valid, 0 if not valid.
  */
-int avpriv_flac_is_extradata_valid(AVCodecContext *avctx,
-                                   enum FLACExtradataFormat *format,
-                                   uint8_t **streaminfo_start);
+int ff_flac_is_extradata_valid(AVCodecContext *avctx,
+                               enum FLACExtradataFormat *format,
+                               uint8_t **streaminfo_start);
 
 /**
  * Calculate an estimate for the maximum frame size based on verbatim mode.
diff --git a/libavcodec/flacdec.c b/libavcodec/flacdec.c
index 920bb3da93..f1316658e7 100644
--- a/libavcodec/flacdec.c
+++ b/libavcodec/flacdec.c
@@ -102,7 +102,7 @@ static av_cold int flac_decode_init(AVCodecContext *avctx)
     if (!avctx->extradata)
         return 0;
 
-    if (!avpriv_flac_is_extradata_valid(avctx, &format, &streaminfo))
+    if (!ff_flac_is_extradata_valid(avctx, &format, &streaminfo))
         return AVERROR_INVALIDDATA;
 
     /* initialize based on the demuxer-supplied streamdata header */