diff --git a/doc/APIchanges b/doc/APIchanges
index eee5073f17..7183dae929 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -15,6 +15,10 @@ libavutil:     2012-10-22
 
 API changes, most recent first:
 
+2014-02-xx - xxxxxxx - lavc 55.35.0 - avcodec.h
+  Give the name AVPacketSideData to the previously anonymous struct used for
+  AVPacket.side_data.
+
 2014-03-18 - 37c07d4 - lsws 2.5.102
   Make gray16 full-scale.
 
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index add0e5ebfc..818172257d 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -1067,6 +1067,12 @@ enum AVPacketSideDataType {
     AV_PKT_DATA_METADATA_UPDATE,
 };
 
+typedef struct AVPacketSideData {
+    uint8_t *data;
+    int      size;
+    enum AVPacketSideDataType type;
+} AVPacketSideData;
+
 /**
  * This structure stores compressed data. It is typically exported by demuxers
  * and then passed as input to decoders, or received as output from encoders and
@@ -1123,11 +1129,7 @@ typedef struct AVPacket {
      * Additional packet data that can be provided by the container.
      * Packet can contain several types of side information.
      */
-    struct {
-        uint8_t *data;
-        int      size;
-        enum AVPacketSideDataType type;
-    } *side_data;
+    AVPacketSideData *side_data;
     int side_data_elems;
 
     /**
diff --git a/libavcodec/version.h b/libavcodec/version.h
index 80c71cf709..528c30b9bb 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -29,8 +29,8 @@
 #include "libavutil/version.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 55
-#define LIBAVCODEC_VERSION_MINOR  52
-#define LIBAVCODEC_VERSION_MICRO 103
+#define LIBAVCODEC_VERSION_MINOR  53
+#define LIBAVCODEC_VERSION_MICRO 100
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \