diff --git a/doc/APIchanges b/doc/APIchanges
index c454cd2bb4..a2370b33e1 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -14,6 +14,9 @@ libavutil:     2015-08-28
 
 
 API changes, most recent first:
+2015-11-xx - xxxxxxx - lavf 57.19.100 - avformat.h
+  Add av_stream_new_side_data().
+
 2015-11-xx - xxxxxxx - lavu 55.8.100 - xtea.h
     Add av_xtea_le_init and av_xtea_le_crypt
 
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index beae067c61..36f9d029b9 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -1939,6 +1939,16 @@ const AVClass *avformat_get_class(void);
  */
 AVStream *avformat_new_stream(AVFormatContext *s, const AVCodec *c);
 
+/**
+ * Allocate new information from stream.
+ *
+ * @param stream stream
+ * @param type desired side information type
+ * @param size side information size
+ * @return pointer to fresh allocated data or NULL otherwise
+ */
+uint8_t *av_stream_new_side_data(AVStream *stream,
+                                 enum AVPacketSideDataType type, int size);
 /**
  * Get side information from stream.
  *
diff --git a/libavformat/internal.h b/libavformat/internal.h
index acfee94d8a..ee860947e1 100644
--- a/libavformat/internal.h
+++ b/libavformat/internal.h
@@ -467,13 +467,6 @@ static inline int ff_rename(const char *oldpath, const char *newpath, void *logc
     return ret;
 }
 
-/**
- * Add new side data to a stream. If a side data of this type already exists, it
- * is replaced.
- */
-uint8_t *ff_stream_new_side_data(AVStream *st, enum AVPacketSideDataType type,
-                                 int size);
-
 /**
  * Allocate extradata with additional AV_INPUT_BUFFER_PADDING_SIZE at end
  * which is always set to 0.
diff --git a/libavformat/mov.c b/libavformat/mov.c
index 8493de954c..2910701ad5 100644
--- a/libavformat/mov.c
+++ b/libavformat/mov.c
@@ -724,7 +724,7 @@ static int mov_read_dac3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         return 0;
     st = c->fc->streams[c->fc->nb_streams-1];
 
-    ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
+    ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
                                                             sizeof(*ast));
     if (!ast)
         return AVERROR(ENOMEM);
@@ -756,7 +756,7 @@ static int mov_read_dec3(MOVContext *c, AVIOContext *pb, MOVAtom atom)
         return 0;
     st = c->fc->streams[c->fc->nb_streams-1];
 
-    ast = (enum AVAudioServiceType*)ff_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
+    ast = (enum AVAudioServiceType*)av_stream_new_side_data(st, AV_PKT_DATA_AUDIO_SERVICE_TYPE,
                                                             sizeof(*ast));
     if (!ast)
         return AVERROR(ENOMEM);
diff --git a/libavformat/replaygain.c b/libavformat/replaygain.c
index 807f851542..707d3cd4f1 100644
--- a/libavformat/replaygain.c
+++ b/libavformat/replaygain.c
@@ -75,7 +75,7 @@ int ff_replaygain_export_raw(AVStream *st, int32_t tg, uint32_t tp,
     if (tg == INT32_MIN && ag == INT32_MIN)
         return 0;
 
-    replaygain = (AVReplayGain*)ff_stream_new_side_data(st, AV_PKT_DATA_REPLAYGAIN,
+    replaygain = (AVReplayGain*)av_stream_new_side_data(st, AV_PKT_DATA_REPLAYGAIN,
                                                         sizeof(*replaygain));
     if (!replaygain)
         return AVERROR(ENOMEM);
diff --git a/libavformat/utils.c b/libavformat/utils.c
index 3924647744..f33f2f505b 100644
--- a/libavformat/utils.c
+++ b/libavformat/utils.c
@@ -4594,7 +4594,7 @@ uint8_t *av_stream_get_side_data(AVStream *st, enum AVPacketSideDataType type,
     return NULL;
 }
 
-uint8_t *ff_stream_new_side_data(AVStream *st, enum AVPacketSideDataType type,
+uint8_t *av_stream_new_side_data(AVStream *st, enum AVPacketSideDataType type,
                                  int size)
 {
     AVPacketSideData *sd, *tmp;
diff --git a/libavformat/version.h b/libavformat/version.h
index 5a2f3f072d..99ae17d8f3 100644
--- a/libavformat/version.h
+++ b/libavformat/version.h
@@ -30,7 +30,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVFORMAT_VERSION_MAJOR  57
-#define LIBAVFORMAT_VERSION_MINOR  18
+#define LIBAVFORMAT_VERSION_MINOR  19
 #define LIBAVFORMAT_VERSION_MICRO 100
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \