diff --git a/doc/APIchanges b/doc/APIchanges
index 308cfa913a..a9ee5b89c2 100644
--- a/doc/APIchanges
+++ b/doc/APIchanges
@@ -13,6 +13,9 @@ libavutil:   2009-03-08
 
 API changes, most recent first:
 
+2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
+  Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
+
 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()
   Deprecate avcodec_pix_fmt_string() in favor of
   pixdesc.h/av_get_pix_fmt_string().
diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index ec179112c2..32eef26392 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -32,8 +32,8 @@
 #include "libavutil/cpu.h"
 
 #define LIBAVCODEC_VERSION_MAJOR 52
-#define LIBAVCODEC_VERSION_MINOR 97
-#define LIBAVCODEC_VERSION_MICRO  3
+#define LIBAVCODEC_VERSION_MINOR 98
+#define LIBAVCODEC_VERSION_MICRO  0
 
 #define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                                LIBAVCODEC_VERSION_MINOR, \
@@ -724,7 +724,10 @@ typedef struct RcOverride{
  * Codec should fill in channel configuration and samplerate instead of container
  */
 #define CODEC_CAP_CHANNEL_CONF     0x0400
-
+/**
+ * Codec is able to deal with negative linesizes
+ */
+#define CODEC_CAP_NEG_LINESIZES    0x0800
 
 //The following defines may change, don't expect compatibility if you use them.
 #define MB_TYPE_INTRA4x4   0x0001