diff --git a/libavcodec/avcodec.h b/libavcodec/avcodec.h
index 750ab1cae2..bccfe6774c 100644
--- a/libavcodec/avcodec.h
+++ b/libavcodec/avcodec.h
@@ -15,17 +15,18 @@ extern "C" {
 #include "rational.h"
 #include <sys/types.h> /* size_t */
 
+//FIXME the following 2 really dont belong in here
 #define FFMPEG_VERSION_INT     0x000409
 #define FFMPEG_VERSION         "CVS"
-#define LIBAVCODEC_BUILD       4759
-
-
-#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
-#define LIBAVCODEC_VERSION     FFMPEG_VERSION
 
 #define AV_STRINGIFY(s)	AV_TOSTRING(s)
 #define AV_TOSTRING(s) #s
-#define LIBAVCODEC_IDENT	"FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
+
+#define LIBAVCODEC_VERSION_INT ((49<<16)+(0<<8)+0)
+#define LIBAVCODEC_VERSION     49.0.0
+#define LIBAVCODEC_BUILD       LIBAVCODEC_VERSION_INT
+
+#define LIBAVCODEC_IDENT       "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
 
 #define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
 #define AV_TIME_BASE 1000000
diff --git a/libavcodec/h263.c b/libavcodec/h263.c
index 870bcbf284..c9d746d648 100644
--- a/libavcodec/h263.c
+++ b/libavcodec/h263.c
@@ -5766,6 +5766,10 @@ static int decode_user_data(MpegEncContext *s, GetBitContext *gb){
     e=sscanf(buf, "FFmpe%*[^b]b%d", &build)+3;
     if(e!=4)
         e=sscanf(buf, "FFmpeg v%d.%d.%d / libavcodec build: %d", &ver, &ver2, &ver3, &build); 
+    if(e!=4){
+        e=sscanf(buf, "Lavc%d.%d.%d", &ver, &ver2, &ver3)+1;
+        build= (ver<<16) + (ver2<<8) + ver3;
+    }
     if(e!=4){
         if(strcmp(buf, "ffmpeg")==0){
             s->lavc_build= 4600;
diff --git a/libavformat/avformat.h b/libavformat/avformat.h
index 622541453b..136f1c0a48 100644
--- a/libavformat/avformat.h
+++ b/libavformat/avformat.h
@@ -5,11 +5,11 @@
 extern "C" {
 #endif
 
-#define LIBAVFORMAT_BUILD       4629
+#define LIBAVFORMAT_VERSION_INT ((49<<16)+(0<<8)+0)
+#define LIBAVFORMAT_VERSION     49.0.0
+#define LIBAVFORMAT_BUILD       LIBAVFORMAT_VERSION_INT
 
-#define LIBAVFORMAT_VERSION_INT FFMPEG_VERSION_INT
-#define LIBAVFORMAT_VERSION     FFMPEG_VERSION
-#define LIBAVFORMAT_IDENT	"FFmpeg" FFMPEG_VERSION "b" AV_STRINGIFY(LIBAVFORMAT_BUILD)
+#define LIBAVFORMAT_IDENT       "Lavf" AV_STRINGIFY(LIBAVFORMAT_VERSION)
 
 #include <time.h>
 #include <stdio.h>  /* FILE */